KR20000040866A - Wood powder surface-treated by physical property improver and polyvinyl chloride resin composition added it for manufacturing synthetic wood - Google Patents
Wood powder surface-treated by physical property improver and polyvinyl chloride resin composition added it for manufacturing synthetic wood Download PDFInfo
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- KR20000040866A KR20000040866A KR1019980056608A KR19980056608A KR20000040866A KR 20000040866 A KR20000040866 A KR 20000040866A KR 1019980056608 A KR1019980056608 A KR 1019980056608A KR 19980056608 A KR19980056608 A KR 19980056608A KR 20000040866 A KR20000040866 A KR 20000040866A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
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Abstract
본 발명은 경량성 건축 내·외장재인 문틀, 창틀, 바닥재, 몰딩류 등 광범위한 분야의 천연목재를 대체할 합성목재를 제조하는데 쓰이는 목분에 있어서, 표면을 물성증강제로 처리하여 수지와의 상용성을 향상시킨 목분에 관한 것이다.The present invention improves the compatibility with the resin by treating the surface with a physical property enhancer in the wood powder used to manufacture synthetic wood to replace natural wood in a wide range of fields such as door frames, window frames, flooring, moldings, etc. It's about wood flour.
또한 본 발명은 합성목재를 제조하는데 쓰이는 염화비닐수지계 조성물에 있어서, 염화비닐수지에 목분을 첨가함으로써 압출 성형물에 천연목재와 유사한 외관 및 표면 질감을 부여하고 성형품의 성형시 수축률을 감소시키고 가공성에 있어서도 용접, 밴딩(bending) 등의 염화비닐수지 가공방법 이외에 대패질, 못질 등의 목재 가공방법으로 가공할 수 있도록 할 뿐만 아니라, 상기의 표면을 물성증강제로 처리한 목분을 사용함으로써 혼련시 수지 내에서 목분의 분산성 및 압출 성형시 용융 수지의 흐름성을 좋게 하고 또 성형된 성형품의 인장 강도, 굴곡 강도 및 내충격성 등의 기계적 특성을 크게 하며, 또한 금속 산화물 등의 중화제를 사용하여 압출 성형시 목분이 탄화되어 생기는 유해 물질인 일산화탄소(CO), 이산화탄소(CO2) 등의 목가스(木 gas)와 잔류 수분을 처리함으로써 목가스에 의해 압출 설비가 부식되거나 수명이 단축되고 압출 성형의 효율이 감소하며 압출 성형품의 표면거칠음 현상과 핀홀현상을 방지하고 또 잔류 수분에 의해 성형품이 쉽게 부패되는 문제점을 해결한 목분이 첨가된 염화비닐수지계 조성물에 관한 것이다.In addition, the present invention in the vinyl chloride resin composition used in the manufacture of synthetic wood, by adding wood powder to the vinyl chloride resin to give the extrusion molding the appearance and surface texture similar to natural wood, reducing the shrinkage rate during molding of the molded article and also in processability In addition to the vinyl chloride resin processing methods such as welding and bending, not only the wood processing methods such as planer and nailing can be processed, but also the wood powder in the resin during kneading by using wood powder treated with the physical property enhancer. To improve the dispersibility and flowability of the molten resin during extrusion, and to increase the mechanical properties such as tensile strength, flexural strength and impact resistance of the molded article. Wood gas and cup such as carbon monoxide (CO) and carbon dioxide (CO 2 ) This process eliminates the problem of corroding or shortening the life of extruding equipment by reducing wood gas, reducing the efficiency of extrusion molding, preventing surface roughness and pinhole phenomenon of extruded products, and easily corrupting molded products by residual moisture. The present invention relates to a vinyl chloride resin composition to which wood flour is added.
Description
본 발명은 표면을 물성증강제로 처리하여 수지와의 상용성을 향상시킨 목분 및 그 목분이 첨가되어 천연목재와 유사한 외관 및 표면 질감을 부여하고 또한 압출 공법으로 원하는 형상의 제품을 자유롭게 만들 수 있는 합성목재 제조용 염화비닐수지계 조성물에 관한 것이다.The present invention is treated with a physical property enhancer to improve the compatibility with the resin wood flour and its wood powder is added to give a similar appearance and surface texture to natural wood and also to produce a product of the desired shape freely by the extrusion method It relates to a vinyl chloride resin composition for producing wood.
근래에 들어 천연목재에 대한 소비자의 선호도가 크게 증가하고 있으며 또한 전세계적으로 환경 보존 문제가 크게 대두되고 있다.In recent years, consumers' preference for natural wood has been greatly increased, and environmental preservation problems are emerging all over the world.
산림자원이 절대적으로 부족하여 사용 목재의 70％ 이상을 수입에 의존하고 있는 우리나라에서는 목재 채취국의 벌목 제한이나 원화 상승에 따른 가격 급등으로 인해 목재 구득란이 심화되고 있으며 따라서 목재의 대체소재 개발이 시급한 실정이다.In Korea, where there is an absolute shortage of forest resources and depend on imports for more than 70% of the timber used, timber-producing eggs are intensifying due to the limitation of logging by the timber harvesting country or the price hike caused by the won's rise. Therefore, it is urgent to develop alternative materials for wood. It is true.
최근 천연목재와 유사한 외관 및 표면 질감을 가진 합성목재에 관한 연구가 많이 이루어지고 있는데 이러한 합성목재를 제조하는데 쓰이는 목분 및 그 목분이 첨가된 합성목재 제조용 염화비닐수지계 조성물의 종래 기술을 보면 다음과 같다.Recently, many studies on synthetic wood having a similar appearance and surface texture to natural wood have been made. The prior arts of the wood flour used to manufacture such synthetic wood and the vinyl chloride resin composition for manufacturing synthetic wood to which the wood powder is added are as follows. .
우선 염화비닐수지에 어떠한 처리도 하지 않은 체 목분만을 첨가한 합성목재 제조용 염화비닐수지계 조성물은 목분과 수지의 상용성이 낮아 혼련시 수지 내에서 목분의 분산성이 좋지 않고, 압출 성형시 용융 수지의 흐름성이 좋지 않으며, 성형된 성형품의 인장 강도, 굴곡 강도 및 내충격성 등의 기계적 특성이 크게 떨어지는 문제점이 있었다. 또한 이러한 문제점은 염화비닐수지에 첨가한 목분의 양이 증가할수록 이에 비례하여 더욱 확연히 나타났다.First of all, the vinyl chloride resin composition for preparing synthetic wood containing only the wood flour without any treatment to the vinyl chloride resin has low compatibility between the wood powder and the resin, so that the dispersibility of the wood powder in the resin during kneading is not good. There is a problem that the flow properties of the poor, mechanical properties such as tensile strength, flexural strength and impact resistance of the molded molded article was greatly reduced. This problem is more prominent in proportion to the amount of wood powder added to the vinyl chloride resin.
일본국 공개특허 평 8-25318호의 합성목재 제조용 염화비닐수지계 조성물은 이러한 문제점을 해결하기 위한 것으로, 염화비닐수지와 목분의 상용성을 크게 하기 위하여 에폭시기를 가진 염화비닐-초산비닐-아릴글리시딜에테르 공중합체를 상용화제로 사용하였다.The vinyl chloride resin composition for preparing synthetic wood of Japanese Patent Application Laid-Open No. 8-25318 is to solve this problem, and to increase the compatibility of vinyl chloride resin and wood powder, vinyl chloride-vinyl acetate-arylglycidyl having an epoxy group. Ether copolymer was used as compatibilizer.
이 상용화제를 사용한 합성목재 제조용 염화비닐수지계 조성물은 압출 성형한 성형품의 인장 강도 등 기계적 특성을 어느 정도 향상시키기는 하였으나 압출 성형시 고온에서 목분이 탄화되면서 생기는 일산화탄소(CO), 이산화탄소(CO2) 등의 목가스(木 gas) 및 잔류 수분을 처리하지 못하여 이 처리하지 못한 목가스에 의해 압출 설비가 부식되거나 수명이 단축되고 압출 성형의 효율이 감소하며 성형품에 표면거칠음과 핀홀(pinhole)이 발생하고, 또한 잔류 수분에 의해 성형품이 쉽게 부패되는 문제점이 있었다. 이때 핀홀이란 얇은 플라스틱 성형품에 마치 핀으로 찌른 것과 같은 형상으로 형성된 미세한 구멍을 말한다.The vinyl chloride resin composition for preparing synthetic wood using this compatibilizer improves mechanical properties such as tensile strength of the extruded molded products to some extent, but carbon monoxide (CO) and carbon dioxide (CO 2 ) produced by carbonization at high temperatures during extrusion molding. Wood gas and residual moisture, etc. cannot be processed, which causes corrosion of extrusion equipment, shortening the lifespan, reducing the efficiency of extrusion molding, and causing surface roughness and pinholes in molded products. In addition, there was a problem that the molded article easily rot due to residual moisture. In this case, the pinhole refers to a minute hole formed in a thin plastic molded product as if it is stuck into a pin.
이에 본 발명에서는 목분 표면을 물성증강제로 처리하여 수지와의 상용성을 향상시킨 목분을 제공하고자 한다.Accordingly, the present invention is to provide a wood powder improved surface compatibility with the resin by treating the surface of the wood powder with a physical property enhancer.
또한 본 발명에서는 천연목재와 유사한 외관 및 표면 질감을 부여한 염화비닐수지계 합성목재 제조용 염화비닐수지계 조성물을 구성함에 있어서, 상기 물성증강제로 표면처리한 목분을 사용함으로써 혼련시 수지 내에서 목분의 분산성 및 압출 성형시 용융 수지의 흐름성을 좋게 하고 또 성형된 성형품의 인장 강도, 굴곡 강도 및 내충격성 등의 기계적 특성을 크게 하며, 또한 금속 산화물 등의 중화제를 사용하여 압출 성형시 목분이 탄화되어 생기는 유해 물질인 목가스와 잔류 수분을 처리함으로써 목가스에 의해 압출 설비가 부식되거나 수명이 단축되고 압출 성형의 효율이 감소하며 압출 성형품의 표면거칠음 현상과 핀홀현상을 방지하고, 또 잔류 수분에 의해 성형품이 쉽게 부패되는 문제점을 해결한 목분이 첨가된 염화비닐수지계 조성물을 제공하고자 한다.In the present invention, in the composition of the vinyl chloride resin composition for preparing a vinyl chloride resin-based synthetic wood having a similar appearance and surface texture to natural wood, by using wood powder surface-treated with the physical property enhancer and dispersibility of wood powder in the resin during kneading It improves the flowability of molten resin during extrusion and increases the mechanical properties such as tensile strength, flexural strength and impact resistance of the molded products, and also is harmful due to carbonization of wood powder during extrusion molding using a neutralizing agent such as metal oxide. By processing wood gas and residual moisture, the extrusion equipment corrodes or shortens the lifespan, reduces the efficiency of extrusion molding, prevents surface roughness and pinhole phenomenon of the extruded products, To prepare a vinyl chloride resin composition containing wood powder, which solves the problem of easily decaying. I want to give.
이하 본 발명인 물성증강제로 표면처리한 목분 및 그 목분을 첨가한 합성목재 제조용 염화비닐수지계 조성물을 상세하게 설명한다.Hereinafter, a wood chloride surface-treated with the physical property enhancer of the present invention and a vinyl chloride resin composition for preparing synthetic wood containing the wood powder will be described in detail.
먼저 물성증강제로 표면처리한 목분을 보면 다음과 같다.First, the wood powder surface treated with a physical enhancer is as follows.
건조시킨 목분과 물성증강제를 고속믹서에 투입한 후 상부 덮개를 덮고 고속믹서를 80∼110℃, 600∼1200rpm 으로 5∼10분간 회전시켜 목분 표면에 활성반응기가 형성될 수 있도록 잘 혼련시킨다.After drying the dried wood powder and physical property enhancer into the high speed mixer, cover the top cover and rotate the high speed mixer at 80 to 110 ° C and 600 to 1200 rpm for 5 to 10 minutes to knead well to form an active reactor on the surface of the wood powder.
이때 목분은 입자 크기가 10∼200㎛, 바람직하게는 50∼100㎛ 인 것이 적당하다.At this time, the wood powder is suitable for the particle size of 10 ~ 200㎛, preferably 50 ~ 100㎛.
입자 크기가 200㎛ 이상의 목분을 첨가한 합성목재 제조용 염화비닐수지계 조성물로 압출 성형한 성형품은 기계적 특성이 떨어지고, 입자 크기가 10㎛ 이하의 목분을 염화비닐수지와 혼련할 때에는 목분의 분진(粉塵) 비산(飛散)의 문제가 발생한다.Molded products extruded from a vinyl chloride resin composition for the production of synthetic wood with a particle size of 200 μm or more added to powder have poor mechanical properties, and when powdered wood powder with a particle size of 10 μm or less is mixed with a vinyl chloride resin, dust of wood powder The problem of scattering occurs.
목분은 또한 수분 함량이 7％ 이내, 바람직하게는 2％ 이내가 되도록 건조시킨 것이 바람직하다. 위 범위 내의 목분을 첨가한 합성목재 제조용 염화비닐수지계 조성물을 압출 성형할 때 목분에서 나오는 수분의 양은 최소화된다.It is also preferable that the wood flour is dried so that the moisture content is within 7%, preferably within 2%. When extruding the polyvinyl chloride resin composition for preparing synthetic wood with wood flour added within the above range, the amount of moisture from wood flour is minimized.
물성증강제로는 실란계, 티타네이트계, 지르코네이트계 커플링(coupling)제를 사용한다. 이러한 커플링제의 예로는 아래의 구조식Ⅰ 내지 구조식 Ⅳ의 화합물이 있다.As the physical property enhancer, a silane-based, titanate-based or zirconate-based coupling agent is used. Examples of such coupling agents include compounds of formulas (I) to (IV) below.
물성증강제의 사용량은 목분 85∼99 중량％에 물성증강제 15∼1 중량％, 바람직하게는 목분 90∼95 중량％에 물성증강제 10∼5 중량％이다.The amount of the physical enhancer used is 85 to 99% by weight of the wood powder, 15 to 1% by weight of the physical enhancer, and preferably 90 to 95% by weight of the wood powder is 10 to 5% by weight.
물성증강제의 함량이 15 중량％를 초과할 때에는 미반응 물성증강제에 의하여 목분과 반응한 물성증강제의 결합력이 떨어지고, 물성증강제의 함량이 1 중량％ 미만일 때에는 물성증강제의 분산성이 떨어져 물성 저하 현상이 초래된다.When the content of the content enhancer exceeds 15% by weight, the bonding strength of the material enhancer reacted with wood powder is decreased by the unreacted property enhancer. When the content of the content enhancer is less than 1% by weight, the property enhancer is dispersible and the property decreases. Caused.
목분을 물성증강제로 표면처리함으로써 목분 표면에 물성증강제의 활성반응기가 형성된다.Surface treatment of wood flour with a physical enhancer forms an active reactor of the physical enhancer on the surface of wood flour.
상기의 방법으로 물성증강제로 표면처리를 한 목분을 첨가한 합성목재 제조용 염화비닐수지계 조성물 및 이 조성물로 성형품을 제조하는 방법을 보면 다음과 같다.According to the above method, a vinyl chloride resin composition for preparing synthetic wood prepared by adding wood powder surface treated with a physical property enhancer and a method of manufacturing a molded article using the composition are as follows.
가열믹서에 아래에서 설명할 염화비닐수지계 조성물을 투입한 후 90∼125℃, 800∼1250rpm 으로 15∼20분동안 혼합하여 합성목재 제조용 염화비닐수지계 조성물을 만든다.The vinyl chloride resin composition to be described below is added to a heating mixer, and then mixed at 90 to 125 ° C. and 800 to 1250 rpm for 15 to 20 minutes to form a vinyl chloride resin composition for manufacturing synthetic wood.
염화비닐수지계 조성물은 중합도가 780∼1300인 염화비닐수지 100 중량부에 충격강화제인 메틸메타크릴레이트-부타디엔-스티렌 공중합체, 아크릴수지 또는 아크릴로니트릴-부타디엔-스티렌 공중합체 5∼15 중량부, 바람직하게는 10 중량부, 열안정제인 염기성 인산납(DLP : dibasic lead phosphate), 스테아르산 납, 스테아르산 카드뮴, 스테아르산 바륨 또는 스테아르산 아연 0.5∼6.0 중량부, 바람직하게는 4.0 중량부, 산화방지제인 산화티탄 1∼8 중량부, 바람직하게는 3 중량부, 충전제인 탄산칼슘 5∼15 중량부, 바람직하게는 8 중량부, 활제(滑劑)인 폴리에틸렌 왁스, 지방산 또는 지방산에스테르계 1.5∼6.5 중량부, 바람직하게는 3.5 중량부, 물성증강제로 표면처리한 목분 3∼40 중량부, 바람직하게는 3∼15 중량부 및 중화제인 산화아연, 산화망간, 산화마그네슘, 산화바륨 또는 산화칼슘 등의 금속산화물 0.5∼5 중량부, 바람직하게는 1∼3 중량부를 혼합한 것이다.The vinyl chloride resin composition may include 5 to 15 parts by weight of a methyl methacrylate-butadiene-styrene copolymer, an acrylic resin or an acrylonitrile-butadiene-styrene copolymer as an impact modifier, in 100 parts by weight of a vinyl chloride resin having a polymerization degree of 780 to 1300; Preferably 10 parts by weight, 0.5 to 6.0 parts by weight of basic lead phosphate (DLP: dibasic lead phosphate), lead stearate, cadmium stearate, barium stearate or zinc stearate, preferably 4.0 parts by weight, oxidation 1 to 8 parts by weight of titanium oxide as an inhibitor, preferably 3 parts by weight, 5 to 15 parts by weight of calcium carbonate as a filler, preferably 8 parts by weight, polyethylene wax, a fatty acid or fatty acid ester, 1.5 to 6.5 parts by weight, preferably 3.5 parts by weight, 3 to 40 parts by weight of wood powder surface-treated with a physical enhancer, preferably 3 to 15 parts by weight, and a neutralizing agent, zinc oxide, manganese oxide, magnesium oxide, and oxidation 0.5-5 weight part of metal oxides, such as barium or a calcium oxide, Preferably 1-3 weight parts are mixed.
이때 목분의 사용량이 40 중량부 이상일 때에는 매트리스 수지인 염화비닐수지와 목분과의 결합력이 떨어져 기계적 물성에 나쁜 영향을 줄 뿐만 아니라 압출 성형할 때 압출기 내에서 용융 수지의 마찰 저항이 증대되어 유동성 및 성형성이 크게 떨어지는 문제점이 있으며, 목분의 사용량이 3 중량부 이하일 때에는 목분의 소량 사용에 따라 목질감이 떨어지는 문제점이 있다.At this time, when the amount of wood powder is 40 parts by weight or more, the binding force between the vinyl chloride resin and the wood powder, which is a mattress resin, is not only adversely affecting the mechanical properties, but also the frictional resistance of the molten resin is increased in the extruder during the extrusion, thereby improving fluidity and molding. There is a problem that greatly falls in the sex, when the amount of wood powder used is 3 parts by weight or less, there is a problem that the wood texture falls according to the use of a small amount of wood powder.
또한 금속산화물의 사용량이 5 중량부 이상일 때에는 압출 성형시 용융 수지의 마찰 저항이 증대되고, 금속산화물의 사용량이 0.5 중량부 이하일 때에는 목가스 및 수분을 효과적으로 중화처리하지 못하여 압출 성형품의 물성이 떨어지고 표면의 외관 품질도 크게 떨어지는 문제점이 있다.In addition, when the amount of the metal oxide used is 5 parts by weight or more, the frictional resistance of the molten resin is increased during extrusion molding, and when the amount of the metal oxide is used by 0.5 parts by weight or less, the physical properties of the extruded product are deteriorated due to the failure to neutralize wood gas and moisture effectively. There is also a problem in that the appearance quality is greatly reduced.
다음, 합성목재 제조용 염화비닐수지계 조성물을 냉각믹서에 투입하여 50∼60℃, 30rpm 으로, 15∼20분동안 냉각시킨다.Next, a vinyl chloride resin composition for producing synthetic wood is added to a cooling mixer and cooled at 50 to 60 ° C. and 30 rpm for 15 to 20 minutes.
다음, 합성목재 제조용 염화비닐수지계 조성물을 압출기에 투입하여 150℃의 온도에서 펠릿(pellet)상으로 압출한다.Next, the vinyl chloride resin composition for producing synthetic wood is introduced into an extruder and extruded into pellets at a temperature of 150 ° C.
이때 합성목재 제조용 염화비닐수지계 조성물의 목분은 압출 성형시 고온에 의하여 탄화되어 일산화탄소(CO), 이산화탄소(CO2) 등의 목가스를 발생시키는데 이 목분에서 발생된 목가스는 합성목재 제조용 염화비닐수지계 조성물의 한 구성성분인 금속산화물에 의해 아래의 반응식 1 및 반응식 2에서 보는 바와 같이 중화된다.At this time, the wood powder of the vinyl chloride resin composition for producing synthetic wood is carbonized by high temperature during extrusion molding to generate wood gas such as carbon monoxide (CO), carbon dioxide (CO 2 ), and the wood gas generated from the wood powder is vinyl chloride resin system for producing synthetic wood. Metal oxides, which are one component of the composition, are neutralized as shown in Schemes 1 and 2 below.
상기 식에서 M은 마그네슘, 칼슘, 바륨 등의 알칼리토금속 또는 망간, 아연이다.In the above formula, M is an alkaline earth metal such as magnesium, calcium or barium, or manganese or zinc.
상기 식에서 M은 위에서 정의한 바와 같다.Where M is as defined above.
또한 합성목재 제조용 염화비닐수지계 조성물의 잔류 수분도 금속산화물에 의해 아래의 반응식 3에서 보는 바와 같이 중화된다.In addition, the residual moisture of the vinyl chloride resin composition for producing synthetic wood is also neutralized by the metal oxide as shown in Scheme 3 below.
상기 식에서 M은 위에서 정의한 바와 같다.Where M is as defined above.
다음, 상기 펠릿에 안료를 혼합하고 목무늬 압출기 및 티-다이를 통해 압출하여 성형품을 제조한다.Next, a pigment is mixed into the pellet and extruded through a wood pattern extruder and a tee die to prepare a molded article.
이때 목무늬 압출기는 일반 압출기의 압출기 헤드(head)와 어댑터(adapter) 사이에 다수의 구멍이 개설된 원판의 브레이커 플레이트(breaker plate)를 설치하여 안료 등이 혼합된 용융수지가 다수의 구멍이 개설된 이 브레이커 플레이트를 지나면서 유체의 마찰저항에 따른 유동 특성 차이를 이용하여 요구무늬를 얻는 것이다. 브레이커 플레이트의 구멍 크기는 2.5∼3.5㎜가 적당하다.At this time, the wood pattern extruder installs a breaker plate of a disc, in which a plurality of holes are opened between an extruder head and an adapter of a general extruder, and a molten resin mixed with pigments opens a plurality of holes. The required pattern is obtained by using the flow characteristic difference according to the frictional resistance of the fluid passing through the breaker plate. The hole size of the breaker plate is suitable for 2.5 to 3.5 mm.
이러한 목무늬 압출기는 압출기 헤드와 어댑터 사이 이외에 어뎁터와 다이(die) 사이에도 추가적으로 브레이커 플레이트를 설치할 수 있다. 또한 브레이커 플레이트에 1∼4장의 스크린 메쉬(screen mesh)를 병용할 수도 있다. 스크린 메쉬는 20메쉬, 35메쉬, 60메쉬의 것을 사용하는 것이 적당하다.Such wood extruders can additionally install breaker plates between the adapter and the die, in addition to between the extruder head and the adapter. In addition, a breaker plate can also use together 1-4 screen meshes. The screen mesh is preferably 20 mesh, 35 mesh or 60 mesh.
이러한 본 발명에 따른 목분 및 목분을 첨가한 합성목재 제조용 염화비닐수지계 조성물을 이용한 실시예 및 이 실시예와의 비교를 위한 비교예를 통해 본 발명을 더욱 상세히 보면 다음과 같다. 단, 본 발명은 아래의 실시예에만 국한되는 것은 아니다.The present invention will be described in more detail through an example using a wood chloride and a vinyl chloride resin composition for preparing synthetic wood prepared by adding wood flour according to the present invention and a comparative example for comparison with this example. However, the present invention is not limited to the following examples.
실시예 1Example 1
평균 입자 크기가 70㎛이고 수분 함량 2％ 이내로 건조시킨 목분 97 중량％와 물성증강제인 구조식 Ⅲ의 화합물 3 중량％를 고속믹서에 투입한 후 100℃, 1000rpm 으로 혼련시켜 물성증강제로 표면처리된 목분을 얻었다.97% by weight of wood powder with an average particle size of 70 µm and dried to within 2% moisture content and 3% by weight of compound of formula III, which is a physical property enhancer, were added to a high speed mixer and kneaded at 100 ° C. and 1000 rpm to be surface treated with a material enhancer. Got.
다음, 중합도가 1000인 염화비닐수지 100 중량부, 충격강화제인 아크릴로니트릴-부타디엔-스티렌 공중합체 10 중량부, 열안정제인 염기성 인산납(DLP) 3 중량부, 스테아르산 납 1 중량부, 산화방지제인 산화티탄(루틸계) 3 중량부, 충전제인 탄산칼슘 8 중량부, 활제인 폴리에틸렌 왁스 0.2 중량부, 스테아르산 0.4 중량부, 하이드록시지방산 0.4 중량부, 다가알콜에스테르 2 중량부, 물성증강제로 표면처리한 목분 15 중량부 및 중화제인 산화마그네슘 3 중량부를 가열믹서에 투입한 후 120℃, 1250rpm 으로 20분동안 혼합하여 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000, 10 parts by weight of acrylonitrile-butadiene-styrene copolymer as an impact modifier, 3 parts by weight of basic lead phosphate (DLP) as a heat stabilizer, 1 part by weight of lead stearate, and oxidation 3 parts by weight of titanium oxide (rutile) as an inhibitor, 8 parts by weight of calcium carbonate as filler, 0.2 part by weight of polyethylene wax as lubricant, 0.4 part by weight of stearic acid, 0.4 part by weight of hydroxyfatty acid, 2 parts by weight of polyalcohol ester, physical property enhancer 15 parts by weight of wood powder surface treated with 3 parts by weight of magnesium oxide as a neutralizing agent was added to a heating mixer, followed by mixing at 120 ° C. and 1250 rpm for 20 minutes to obtain a vinyl chloride resin composition for preparing synthetic wood.
다음, 합성목재 제조용 염화비닐수지계 조성물을 냉각믹서에 투입하여 60℃, 30rpm 으로 20분동안 냉각시킨 다음, 압출기에 투입하여 150℃의 온도에서 압출하여 크기가 2∼5㎜인 펠릿상의 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, the polyvinyl chloride resin composition for preparing synthetic wood was added to a cooling mixer for 20 minutes at 60 ° C. and 30 rpm, then extruded at an temperature of 150 ° C. to produce pelletized synthetic wood having a size of 2 to 5 mm. A vinyl chloride resin composition was obtained.
그다음, 펠릿에 안료를 혼합하고 목무늬 압출기 및 티-다이를 통하여 압출성형하여 1.5㎜ 두께의 합성목재 박판을 만들었다.The pigments were then mixed into pellets and extruded through a wood-screw extruder and a tee-die to produce a 1.5 mm thick synthetic wood sheet.
실시예 2Example 2
평균 입자 크기가 70㎛이고 수분 함량 2％ 이내로 건조시킨 목분 95 중량％와 물성증강제인 구조식 Ⅲ의 화합물 5 중량％를 고속믹서에 투입한 후 100℃, 1000rpm 으로 혼련시켜 물성증강제로 표면처리된 목분을 얻었다.95% by weight of wood powder with an average particle size of 70 µm and dried to within 2% moisture content and 5% by weight of a compound of formula III, which is a physical property enhancer, were added to a high speed mixer and kneaded at 100 ° C. and 1000 rpm to be surface treated with a material enhancer. Got.
다음, 중합도가 1000인 염화비닐수지 100 중량부, 충격강화제인 아크릴로니트릴-부타디엔-스티렌 공중합체 10 중량부, 열안정제인 염기성 인산납(DLP) 3 중량부, 스테아르산 납 1 중량부, 산화방지제인 산화티탄(루틸계) 3 중량부, 충전제인 탄산칼슘 8 중량부, 활제인 폴리에틸렌 왁스 0.2 중량부, 스테아르산 0.4 중량부, 하이드록시지방산 0.4 중량부, 다가알콜에스테르 2 중량부, 물성증강제로 표면처리한 목분 15 중량부 및 중화제인 산화마그네슘 3 중량부를 가열믹서에 투입한 후 120℃, 1250rpm 으로 20분동안 혼합하여 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000, 10 parts by weight of acrylonitrile-butadiene-styrene copolymer as an impact modifier, 3 parts by weight of basic lead phosphate (DLP) as a heat stabilizer, 1 part by weight of lead stearate, and oxidation 3 parts by weight of titanium oxide (rutile) as an inhibitor, 8 parts by weight of calcium carbonate as filler, 0.2 part by weight of polyethylene wax as lubricant, 0.4 part by weight of stearic acid, 0.4 part by weight of hydroxyfatty acid, 2 parts by weight of polyalcohol ester, physical property enhancer 15 parts by weight of wood powder surface treated with 3 parts by weight of magnesium oxide as a neutralizing agent was added to a heating mixer, followed by mixing at 120 ° C. and 1250 rpm for 20 minutes to obtain a vinyl chloride resin composition for preparing synthetic wood.
다음, 합성목재 제조용 염화비닐수지계 조성물을 냉각믹서에 투입하여 60℃, 30rpm 으로 20분동안 냉각시킨 다음, 압출기에 투입하여 150℃의 온도에서 압출하여 크기가 2∼5㎜인 펠릿상의 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, the polyvinyl chloride resin composition for preparing synthetic wood was added to a cooling mixer for 20 minutes at 60 ° C. and 30 rpm, then extruded at an temperature of 150 ° C. to produce pelletized synthetic wood having a size of 2 to 5 mm. A vinyl chloride resin composition was obtained.
그다음, 펠릿에 안료를 혼합하고 목무늬 압출기 및 티-다이를 통하여 압출성형하여 1.5㎜ 두께의 합성목재 박판을 만들었다.The pigments were then mixed into pellets and extruded through a wood-screw extruder and a tee-die to produce a 1.5 mm thick synthetic wood sheet.
실시예 3Example 3
평균 입자 크기가 70㎛이고 수분 함량 2％ 이내로 건조시킨 목분 90 중량％와 물성증강제인 구조식 Ⅲ의 화합물 10 중량％를 고속믹서에 투입한 후 100℃, 1000rpm 으로 혼련시켜 물성증강제로 표면처리된 목분을 얻었다.90 wt% of the wood powder with an average particle size of 70 μm and dried to within 2% of water content and 10 wt% of the compound of the structural formula III, which is a physical property enhancer, were added to a high speed mixer and kneaded at 100 ° C. and 1000 rpm to be surface treated with a material enhancer. Got.
다음, 중합도가 1000인 염화비닐수지 100 중량부, 충격강화제인 아크릴로니트릴-부타디엔-스티렌 공중합체 10 중량부, 열안정제인 염기성 인산납(DLP) 3 중량부, 스테아르산 납 1 중량부, 산화방지제인 산화티탄(루틸계) 3 중량부, 충전제인 탄산칼슘 8 중량부, 활제인 폴리에틸렌 왁스 0.2 중량부, 스테아르산 0.4 중량부, 하이드록시지방산 0.4 중량부, 다가알콜에스테르 2 중량부, 물성증강제로 표면처리한 목분 15 중량부 및 중화제인 산화마그네슘 3 중량부를 가열믹서에 투입한 후 120℃, 1250rpm 으로 20분동안 혼합하여 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000, 10 parts by weight of acrylonitrile-butadiene-styrene copolymer as an impact modifier, 3 parts by weight of basic lead phosphate (DLP) as a heat stabilizer, 1 part by weight of lead stearate, and oxidation 3 parts by weight of titanium oxide (rutile) as an inhibitor, 8 parts by weight of calcium carbonate as filler, 0.2 part by weight of polyethylene wax as lubricant, 0.4 part by weight of stearic acid, 0.4 part by weight of hydroxyfatty acid, 2 parts by weight of polyalcohol ester, physical property enhancer 15 parts by weight of wood powder surface treated with 3 parts by weight of magnesium oxide as a neutralizing agent was added to a heating mixer, followed by mixing at 120 ° C. and 1250 rpm for 20 minutes to obtain a vinyl chloride resin composition for preparing synthetic wood.
다음, 합성목재 제조용 염화비닐수지계 조성물을 냉각믹서에 투입하여 60℃, 30rpm 으로 20분동안 냉각시킨 다음, 압출기에 투입하여 150℃의 온도에서 압출하여 크기가 2∼5㎜인 펠릿상의 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, the polyvinyl chloride resin composition for preparing synthetic wood was added to a cooling mixer for 20 minutes at 60 ° C. and 30 rpm, then extruded at an temperature of 150 ° C. to produce pelletized synthetic wood having a size of 2 to 5 mm. A vinyl chloride resin composition was obtained.
그다음, 펠릿에 안료를 혼합하고 목무늬 압출기 및 티-다이를 통하여 압출성형하여 1.5㎜ 두께의 합성목재 박판을 만들었다.The pigments were then mixed into pellets and extruded through a wood-screw extruder and a tee-die to produce a 1.5 mm thick synthetic wood sheet.
실시예 4Example 4
평균 입자 크기가 70㎛이고 수분 함량 2％ 이내로 건조시킨 목분 95 중량％와 물성증강제인 구조식 Ⅲ의 화합물 5 중량％를 고속믹서에 투입한 후 100℃, 1000rpm 으로 혼련시켜 물성증강제로 표면처리된 목분을 얻었다.95% by weight of wood powder with an average particle size of 70 µm and dried to within 2% moisture content and 5% by weight of a compound of formula III, which is a physical property enhancer, were added to a high speed mixer and kneaded at 100 ° C. and 1000 rpm to be surface treated with a material enhancer. Got.
다음, 중합도가 1000인 염화비닐수지 100 중량부, 충격강화제인 아크릴로니트릴-부타디엔-스티렌 공중합체 10 중량부, 열안정제인 염기성 인산납(DLP) 3 중량부, 스테아르산 납 1 중량부, 산화방지제인 산화티탄(루틸계) 3 중량부, 충전제인 탄산칼슘 8 중량부, 활제인 폴리에틸렌 왁스 0.2 중량부, 스테아르산 0.4 중량부, 하이드록시지방산 0.4 중량부, 다가알콜에스테르 2 중량부, 물성증강제로 표면처리한 목분 15 중량부 및 중화제인 산화마그네슘 1 중량부를 가열믹서에 투입한 후 120℃, 1250rpm 으로 20분동안 혼합하여 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000, 10 parts by weight of acrylonitrile-butadiene-styrene copolymer as an impact modifier, 3 parts by weight of basic lead phosphate (DLP) as a heat stabilizer, 1 part by weight of lead stearate, and oxidation 3 parts by weight of titanium oxide (rutile) as an inhibitor, 8 parts by weight of calcium carbonate as filler, 0.2 part by weight of polyethylene wax as lubricant, 0.4 part by weight of stearic acid, 0.4 part by weight of hydroxyfatty acid, 2 parts by weight of polyalcohol ester, physical property enhancer 15 parts by weight of wood powder surface treated with 1 part by weight of magnesium oxide as a neutralizing agent was added to a heating mixer, followed by mixing at 120 ° C. and 1250 rpm for 20 minutes to obtain a vinyl chloride resin composition for preparing synthetic wood.
다음, 합성목재 제조용 염화비닐수지계 조성물을 냉각믹서에 투입하여 60℃, 30rpm 으로 20분동안 냉각시킨 다음, 압출기에 투입하여 150℃의 온도에서 압출하여 크기가 2∼5㎜인 펠릿상의 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, the polyvinyl chloride resin composition for preparing synthetic wood was added to a cooling mixer for 20 minutes at 60 ° C. and 30 rpm, then extruded at an temperature of 150 ° C. to produce pelletized synthetic wood having a size of 2 to 5 mm. A vinyl chloride resin composition was obtained.
그다음, 펠릿에 안료를 혼합하고 목무늬 압출기 및 티-다이를 통하여 압출성형하여 1.5㎜ 두께의 합성목재 박판을 만들었다.The pigments were then mixed into pellets and extruded through a wood-screw extruder and a tee-die to produce a 1.5 mm thick synthetic wood sheet.
비교예 1Comparative Example 1
중합도가 1000인 염화비닐수지 100 중량부, 충격강화제인 아크릴로니트릴-부타디엔-스티렌 공중합체 10 중량부, 열안정제인 염기성 인산납(DLP) 3 중량부, 스테아르산 납 1 중량부, 산화방지제인 산화티탄(루틸계) 3 중량부, 충전제인 탄산칼슘 8 중량부, 활제인 폴리에틸렌 왁스 0.2 중량부, 스테아르산 0.4 중량부, 하이드록시지방산 0.4 중량부, 다가알콜에스테르 2 중량부 및 어떠한 처리도 하지 않은 평균 입자 크기가 70㎛이고 수분 함량 2％ 이내로 건조시킨 목분 15 중량부를 가열믹서에 투입한 후 120℃, 1250rpm 으로 20분동안 혼합하여 합성목재 제조용 염화비닐수지계 조성물을 얻었다.100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000, 10 parts by weight of an acrylonitrile-butadiene-styrene copolymer as an impact modifier, 3 parts by weight of basic lead phosphate (DLP) as a heat stabilizer, 1 part by weight of lead stearate, an antioxidant 3 parts by weight of titanium oxide (rutile), 8 parts by weight of filler calcium carbonate, 0.2 parts by weight of lubricant polyethylene wax, 0.4 parts by weight of stearic acid, 0.4 parts by weight of hydroxyfatty acid, 2 parts by weight of polyalcohol ester and no treatment 15 parts by weight of wood powder, which had an average particle size of 70 μm and dried to within 2% of water content, was added to a heating mixer and mixed at 120 ° C. and 1250 rpm for 20 minutes to obtain a vinyl chloride resin composition for manufacturing synthetic wood.
다음, 합성목재 제조용 염화비닐수지계 조성물을 냉각믹서에 투입하여 60℃, 30rpm 으로 20분동안 냉각시킨 다음, 압출기에 투입하여 150℃의 온도에서 압출하여 크기가 2∼5㎜인 펠릿상의 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, the polyvinyl chloride resin composition for preparing synthetic wood was added to a cooling mixer for 20 minutes at 60 ° C. and 30 rpm, then extruded at an temperature of 150 ° C. to produce pelletized synthetic wood having a size of 2 to 5 mm. A vinyl chloride resin composition was obtained.
그다음, 펠릿에 안료를 혼합하고 목무늬 압출기 및 티-다이를 통하여 압출성형하여 1.5㎜ 두께의 합성목재 박판을 만들었다.The pigments were then mixed into pellets and extruded through a wood-screw extruder and a tee-die to produce a 1.5 mm thick synthetic wood sheet.
비교예 2Comparative Example 2
중합도가 1000인 염화비닐수지 100 중량부, 충격강화제인 아크릴로니트릴-부타디엔-스티렌 공중합체 10 중량부, 열안정제인 염기성 인산납(DLP) 3 중량부, 스테아르산 납 1 중량부, 산화방지제인 산화티탄(루틸계) 3 중량부, 충전제인 탄산칼슘 8 중량부, 활제인 폴리에틸렌 왁스 0.2 중량부, 스테아르산 0.4 중량부, 하이드록시지방산 0.4 중량부, 다가알콜에스테르 2 중량부, 어떠한 처리도 하지 않은 평균 입자 크기가 70㎛이고 수분 함량 2％ 이내로 건조시킨 목분 15 중량부 및 중화제인 산화마그네슘 3 중량부를 가열믹서에 투입한 후 120℃, 1250rpm 으로 20분동안 혼합하여 합성목재 제조용 염화비닐수지계 조성물을 얻었다.100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000, 10 parts by weight of an acrylonitrile-butadiene-styrene copolymer as an impact modifier, 3 parts by weight of basic lead phosphate (DLP) as a heat stabilizer, 1 part by weight of lead stearate, an antioxidant 3 parts by weight of titanium oxide (rutile), 8 parts by weight of filler calcium carbonate, 0.2 parts by weight of lubricant polyethylene wax, 0.4 parts by weight of stearic acid, 0.4 parts by weight of hydroxyfatty acid, 2 parts by weight of polyalcohol ester, no treatment 15 parts by weight of wood powder and 3 parts by weight of magnesium oxide, which is a neutralizing agent, were added to a heating mixer and mixed for 20 minutes at 120 ° C. and 1250 rpm for 20 minutes. Got.
다음, 합성목재 제조용 염화비닐수지계 조성물을 냉각믹서에 투입하여 60℃, 30rpm 으로 20분동안 냉각시킨 다음, 압출기에 투입하여 150℃의 온도에서 압출하여 크기가 2∼5㎜인 펠릿상의 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, the polyvinyl chloride resin composition for preparing synthetic wood was added to a cooling mixer for 20 minutes at 60 ° C. and 30 rpm, then extruded at an temperature of 150 ° C. to produce pelletized synthetic wood having a size of 2 to 5 mm. A vinyl chloride resin composition was obtained.
그다음, 펠릿에 안료를 혼합하고 목무늬 압출기 및 티-다이를 통하여 압출성형하여 1.5㎜ 두께의 합성목재 박판을 만들었다.The pigments were then mixed into pellets and extruded through a wood-screw extruder and a tee-die to produce a 1.5 mm thick synthetic wood sheet.
비교예 3Comparative Example 3
평균 입자 크기가 70㎛이고 수분 함량 2％ 이내로 건조시킨 목분 95 중량％와 물성증강제인 구조식 Ⅲ의 화합물 5 중량％를 고속믹서에 투입한 후 100℃, 1000rpm 으로 혼련시켜 물성증강제로 표면처리된 목분을 얻었다.95% by weight of wood powder with an average particle size of 70 µm and dried to within 2% moisture content and 5% by weight of a compound of formula III, which is a physical property enhancer, were added to a high speed mixer and kneaded at 100 ° C. and 1000 rpm to be surface treated with a material enhancer. Got.
다음, 중합도가 1000인 염화비닐수지 100 중량부, 충격강화제인 아크릴로니트릴-부타디엔-스티렌 공중합체 10 중량부, 열안정제인 염기성 인산납(DLP) 3 중량부, 스테아르산 납 1 중량부, 산화방지제인 산화티탄(루틸계) 3 중량부, 충전제인 탄산칼슘 8 중량부, 활제인 폴리에틸렌 왁스 0.2 중량부, 스테아르산 0.4 중량부, 하이드록시지방산 0.4 중량부, 다가알콜에스테르 2 중량부 및 물성증강제로 표면처리한 목분 15 중량부를 가열믹서에 투입한 후 120℃, 1250rpm 으로 20분동안 혼합하여 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000, 10 parts by weight of acrylonitrile-butadiene-styrene copolymer as an impact modifier, 3 parts by weight of basic lead phosphate (DLP) as a heat stabilizer, 1 part by weight of lead stearate, and oxidation 3 parts by weight of titanium oxide (rutile) as an inhibitor, 8 parts by weight of calcium carbonate as filler, 0.2 part by weight of polyethylene wax as lubricant, 0.4 part by weight of stearic acid, 0.4 part by weight of hydroxyfatty acid, 2 parts by weight of polyalcohol ester, and physical property enhancer 15 parts by weight of wood powder surface treated with a hot mixer was added to a heating mixer and mixed at 120 ° C. and 1250 rpm for 20 minutes to obtain a vinyl chloride resin composition for preparing synthetic wood.
다음, 합성목재 제조용 염화비닐수지계 조성물을 냉각믹서에 투입하여 60℃, 30rpm 으로 20분동안 냉각시킨 다음, 압출기에 투입하여 150℃의 온도에서 압출하여 크기가 2∼5㎜인 펠릿상의 합성목재 제조용 염화비닐수지계 조성물을 얻었다.Next, the polyvinyl chloride resin composition for preparing synthetic wood was added to a cooling mixer for 20 minutes at 60 ° C. and 30 rpm, then extruded at an temperature of 150 ° C. to produce pelletized synthetic wood having a size of 2 to 5 mm. A vinyl chloride resin composition was obtained.
그다음, 펠릿에 안료를 혼합하고 목무늬 압출기 및 티-다이를 통하여 압출성형하여 1.5㎜ 두께의 합성목재 박판을 만들었다.The pigments were then mixed into pellets and extruded through a wood-screw extruder and a tee-die to produce a 1.5 mm thick synthetic wood sheet.
이러한 본 발명에 따른 목분 및 목분을 첨가한 합성목재 제조용 염화비닐수지계 조성물은 경량성 건축 내·외장재인 문틀, 창틀, 바닥재, 몰딩류 등 광범위한 분야의 천연목재를 대체할 합성목재로 제조할 수 있어 천연목재에 대한 소비자의 선호도 증가 및 환경 보존 문제 해결에 일조(一助)할 것으로 기대된다.Polyvinyl chloride resin composition for the production of synthetic wood and wood flour according to the present invention can be produced as a synthetic wood to replace natural wood in a wide range of fields, such as door frames, window frames, flooring, moldings, etc. It is expected to contribute to increasing consumer preference for wood and solving environmental problems.
그 구체적인 효과를 보면 다음과 같다.The specific effects are as follows.
본 발명에 따른 목분은 그 표면을 물성증강제로 처리하여 활성반응기를 형성시킴으로써 수지와의 상용성을 향상시켰다.Wood flour according to the invention improved the compatibility with the resin by treating the surface with a physical enhancer to form an active reactor.
본 발명에 따른 합성목재 제조용 염화비닐수지계 조성물은 염화비닐수지에 목분을 첨가함으로써 압출 성형물에 천연목재와 유사한 외관 및 표면 질감을 부여하고, 성형품의 성형시 수축률을 감소시키고 가공성에 있어서도 용접, 밴딩(bending) 등의 염화비닐수지 가공방법 이외에 대패질, 못질 등의 목재 가공방법으로 가공할 수 있도록 하였다.The vinyl chloride resin composition for preparing synthetic wood according to the present invention adds wood powder to the vinyl chloride resin to impart an appearance and surface texture similar to that of natural wood to the extruded molding, reduce the shrinkage rate during molding of the molded article, and also weld and band ( In addition to the vinyl chloride resin processing method such as bending), it can be processed by wood processing methods such as planer and nailing.
또 본 발명에 따른 합성목재 제조용 염화비닐수지계 조성물은 표면을 물성증강제로 처리한 목분을 사용함으로써 혼련시 수지 내에서 목분의 분산성 및 압출 성형시 용융 수지의 흐름성을 좋게 하고 또 성형된 성형품의 인장 강도, 굴곡 강도 및 내충격성 등의 기계적 특성을 크게 하였다.In addition, the vinyl chloride resin composition for preparing synthetic wood according to the present invention uses wood powder whose surface is treated with a physical property enhancer to improve the dispersibility of wood powder in the resin during kneading and the flowability of the molten resin during extrusion molding, and Mechanical properties such as tensile strength, flexural strength and impact resistance were increased.
또한 본 발명에 따른 합성목재 제조용 염화비닐수지계 조성물은 금속 산화물 등의 중화제를 사용하여 압출 성형시 목분이 탄화되어 생기는 유해 물질인 목가스와 잔류 수분을 처리함으로써 목가스에 의해 압출 설비가 부식되거나 수명이 단축되고 압출 성형의 효율이 감소하며 압출 성형품의 표면거칠음 현상과 핀홀현상을 방지하고, 또 잔류 수분에 의해 성형품이 쉽게 부패되는 문제점을 해결하였다.In addition, the vinyl chloride resin composition for preparing synthetic wood according to the present invention is treated with wood gas and residual moisture, which are harmful substances caused by carbonization of wood powder when extruding using a neutralizing agent such as metal oxide, and the extrusion equipment is corroded by wood gas or has a lifespan. Shortened and reduced the efficiency of extrusion molding, prevented the surface roughness and pinhole phenomenon of the extruded product, and solved the problem that the molded product easily rot due to residual moisture.
아래의 표 1은 이러한 본 발명의 효과를 알아보기 위하여 상기 실시예 1 내지 실시예 4 및 비교예 1 내지 비교예 3의 각각의 합성목재 박판에서 시편을 채취하여 미국재료시험협회 규격(ASTM : American Society of Test and Materials)에 따라 인장 강도, 굴곡 강도, 충격 강도의 기계적 특성과 열안정성, 압출성형성을 측정한 결과이다.Table 1 below is taken from the specimens of each of the synthetic wood thin plates of Examples 1 to 4 and Comparative Examples 1 to 3 in order to determine the effect of the present invention, the American Society for Testing and Materials (ASTM: American) According to the Society of Test and Materials, the mechanical properties, thermal stability, and extrudability of tensile strength, flexural strength, and impact strength were measured.
그 결과를 보면, 물성증강제 및 금속산화물을 모두 사용하지 않거나 또는 물성증강제만을 사용하거나 또는 금속산화물만을 사용한 비교예 1 내지 비교예 3의 경우와 물성증강제 및 금속산화물을 모두 사용한 실시예 1 내지 실시예 4의 경우를 비교하면 물성증강제 및 금속산화물을 모두 사용한 실시예의 경우가 인장 강도, 굴곡 강도 및 충격 강도의 기계적 특성이 향상되고 또한 열안정성 및 압출성형성이 개선됨을 확인할 수 있다.As a result, in the case of Comparative Examples 1 to 3 using neither the physical property enhancer and the metal oxide, or using only the physical property enhancer, or only the metal oxide and Examples 1 to Example using both the physical property enhancer and the metal oxide Comparing the case 4 it can be seen that the embodiment using both the physical property enhancer and the metal oxide improves the mechanical properties of tensile strength, flexural strength and impact strength, and also improves the thermal stability and extrusion molding.
Claims (7)
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| KR1019980056608A KR100301394B1 (en) | 1998-12-21 | 1998-12-21 | Surface-treated wood flour with physical reinforcing agent and vinyl chloride resin composition for the manufacture of synthetic wood with added wood flour |
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| KR100932173B1 (en) * | 2009-04-25 | 2009-12-16 | (주)경원소재 | Compositions for Wood-Plastic Composites and Wood-Plastic Composites Prepared Using the Compositions |
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| KR101175308B1 (en) * | 2009-11-17 | 2012-08-20 | (주)경원소재 | Wood Plastic Composite Compositions and Profiles |
| CN107057394B (en) * | 2017-05-25 | 2019-06-04 | 蔡辉 | PVC wood plastic composite material and its preparation method and application |
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| KR100932173B1 (en) * | 2009-04-25 | 2009-12-16 | (주)경원소재 | Compositions for Wood-Plastic Composites and Wood-Plastic Composites Prepared Using the Compositions |
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