CN107903499A - A kind of transparent toughening modifying polypropylene plastics and its preparation - Google Patents
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- -1 polypropylene Polymers 0.000 title claims abstract description 51
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 50
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 49
- 239000004033 plastic Substances 0.000 title claims abstract description 26
- 229920003023 plastic Polymers 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 5
- 229920005629 polypropylene homopolymer Polymers 0.000 claims abstract description 5
- 230000003078 antioxidant effect Effects 0.000 claims abstract 4
- 239000000843 powder Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 235000019628 coolness Nutrition 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000005453 pelletization Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 14
- 238000002834 transmittance Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 229920001519 homopolymer Polymers 0.000 description 4
- 239000012745 toughening agent Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012968 metallocene catalyst Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000003961 penetration enhancing agent Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Manufacture Of Macromolecular Shaped Articles (AREA)
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Abstract
Description
技术领域technical field
本发明涉及一种改性的聚丙烯塑料及其制备方法，特别是一种透明增韧改性的聚丙烯塑料及制备方法。The invention relates to a modified polypropylene plastic and a preparation method thereof, in particular to a transparent and toughened modified polypropylene plastic and a preparation method thereof.
背景技术Background technique
近些年来，由于石油资源的日益紧缺，加之塑料原料价格快速增长，为了改善并提高塑料材料在一些方面的性能，增加其功能性，降低塑料制品的成本，开发环境友好型塑料材料，塑料改性技术的应用与研究越来越受到人们重视。聚丙稀是一种综合性能十分优异的热塑性通用塑料，其具有易加工、密度小、生产成本低，质轻、无毒、耐热、防潮性优良、耐环境应力开裂性好等特性。但是聚丙烯的耐低温性能不如聚乙烯，脆化温度约为-30℃～-10℃(聚乙稀约为-60℃)，低温甚至室温下的抗冲击性能不佳，低温下易脆裂，而且聚丙烯制品的透光性差，使制品的外观缺乏美感，而且刚韧的平衡性差，但通过改性技术，通用、大众化、功能化的改性PP塑料将会使低档塑料高性能化应用成为现实。In recent years, due to the increasing shortage of petroleum resources and the rapid increase in the price of plastic raw materials, in order to improve and enhance the performance of plastic materials in some aspects, increase their functionality, reduce the cost of plastic products, and develop environmentally friendly plastic materials, plastic modification The application and research of sexual technology has attracted more and more attention. Polypropylene is a thermoplastic general-purpose plastic with excellent comprehensive properties. It has the characteristics of easy processing, low density, low production cost, light weight, non-toxicity, heat resistance, moisture resistance, and environmental stress cracking resistance. However, the low temperature resistance of polypropylene is not as good as that of polyethylene, and the embrittlement temperature is about -30°C to -10°C (polyethylene is about -60°C). The impact resistance at low temperature or even room temperature is not good, and it is easy to be brittle at low temperature. , and the poor light transmission of polypropylene products makes the appearance of the products lack aesthetic feeling, and the balance of rigidity and toughness is poor, but through modification technology, general, popular and functional modified PP plastics will make low-grade plastics high-performance applications Become reality.
发明内容Contents of the invention
本发明要解决的技术问题在于提供一种外观美，可用于精美包装的高透明度高拉伸强度的聚丙烯塑料。The technical problem to be solved by the present invention is to provide a polypropylene plastic with high transparency and high tensile strength that has a beautiful appearance and can be used for exquisite packaging.
一种高透明度高拉伸强度的聚丙烯塑料，包括聚丙烯和辅助剂，其特征在于：还包括增透剂，增韧剂。A polypropylene plastic with high transparency and high tensile strength, including polypropylene and auxiliary agents, is characterized in that it also includes a penetration enhancer and a toughening agent.
所述的增韧剂为茂金属聚丙烯或茂金属聚烯烃类的一种或几种。The toughening agent is one or more of metallocene polypropylene or metallocene polyolefin.
所述的增韧剂所占的重量百分比为10％～20％。The weight percentage of the toughening agent is 10%-20%.
抗氧剂为汽巴抗氧剂1010和汽巴抗氧剂168，所占的重量百分比为0.2％～0.3％，分散剂为硬脂酸钙，所占的重量百分比为0.05％～0.1％。The antioxidants are Ciba Antioxidant 1010 and Ciba Antioxidant 168, accounting for 0.2%-0.3% by weight, and the dispersant is calcium stearate, accounting for 0.05%-0.1% by weight.
本发明将辅助剂加入聚丙烯粉料中，充分搅拌挤出造粒，再将颗粒状的增韧剂加入其中进行吹塑，可以有效地提高聚丙烯的透明度和韧性。茂金属聚丙烯是采用茂金属催化剂体系催化的烯烃聚合物，茂金属聚丙烯分子量分布窄，熔点低，结晶度低，并且茂金属聚丙烯绿色无污染，但是茂金属聚丙烯加工上比较困难，成本高，只用茂金属聚丙烯生产薄膜加工性不好，采用混合茂金属聚丙烯和宽分子量分布的聚丙烯可以改善加工性能，其较高的韧性可以使厚度减薄，降低成本，同时还能提高它的透明性。通过本发明的制备方法制备的聚丙烯塑料可明显改善聚丙烯的透明性和力学性能。In the invention, the auxiliary agent is added into the polypropylene powder, fully stirred, extruded and granulated, and then the granular toughening agent is added therein for blow molding, which can effectively improve the transparency and toughness of the polypropylene. Metallocene polypropylene is an olefin polymer catalyzed by a metallocene catalyst system. Metallocene polypropylene has a narrow molecular weight distribution, low melting point, low crystallinity, and metallocene polypropylene is green and pollution-free, but it is difficult to process metallocene polypropylene. The cost is high, and the processability of the film produced only by metallocene polypropylene is not good. The use of mixed metallocene polypropylene and polypropylene with a wide molecular weight distribution can improve the processing performance, and its high toughness can reduce the thickness and reduce the cost. can improve its transparency. The polypropylene plastic prepared by the preparation method of the invention can obviously improve the transparency and mechanical properties of the polypropylene.
本发明的有益效果改善了聚丙烯的透明性和韧性，光泽度好，强度大，使聚丙烯塑料能够作为多种精美高档包装品的包装材料。The invention has the beneficial effects of improving the transparency and toughness of the polypropylene, having good gloss and high strength, so that the polypropylene plastic can be used as a packaging material for various exquisite and high-grade packaging products.
具体实施方式Detailed ways
本发明技术方案不局限于以下所列举具体实施方式，还包括各具体实施方式间的任意组合。The technical solution of the present invention is not limited to the specific embodiments listed below, but also includes any combination of the specific embodiments.
具体实施方式一：取干燥后的均聚聚丙烯045粉料179克、抗氧剂10100.1克、抗氧剂1680.1克，硬脂酸钙0.1克，在高速搅拌机内混合10分钟。将混合后的材料加入单螺杆挤出机挤出拉条，将拉条放入烘箱在80℃干燥48小时，再用切粒机切粒。将粒料和20克茂金属聚丙烯PN0040颗粒在高速搅拌机内混合10分钟，缓慢加入转矩流变仪中，吹塑或放入压片机压制成膜。按照GB/T 2410-2008测试标准制备样条，测试薄膜的透光率。按照ASTMD-882测试标准制备样条，测试薄膜的拉伸强度和断裂伸长率。结果见表1。Embodiment 1: Take 179 grams of dried homopolypropylene 045 powder, 10100.1 grams of antioxidants, 1680.1 grams of antioxidants, and 0.1 grams of calcium stearate, and mix them in a high-speed mixer for 10 minutes. Put the mixed material into a single-screw extruder to extrude the strands, put the strands into an oven to dry at 80° C. for 48 hours, and then pelletize them with a pelletizer. The pellets and 20 g of metallocene polypropylene PN0040 particles were mixed in a high-speed mixer for 10 minutes, slowly added to a torque rheometer, blown or put into a tablet press to form a film. Samples were prepared according to GB/T 2410-2008 test standard, and the light transmittance of the film was tested. Samples were prepared according to the ASTM D-882 test standard, and the tensile strength and elongation at break of the film were tested. The results are shown in Table 1.
具体实施方式二：本实施方式与具体实施方式一不同的是：均聚聚丙烯045粉料为175克，茂金属聚丙烯PN0040颗粒为24克。其它步骤和参数与具体实施方式一相同。按照GB/T 2410-2008测试标准制备样条，测试薄膜的透光率。按照ASTMD-882测试标准制备样条，测试薄膜的拉伸强度和断裂伸长率。结果见表1。Embodiment 2: This embodiment differs from Embodiment 1 in that: the homopolymer polypropylene 045 powder is 175 grams, and the metallocene polypropylene PN0040 particles is 24 grams. Other steps and parameters are the same as in the first embodiment. Samples were prepared according to GB/T 2410-2008 test standard, and the light transmittance of the film was tested. Samples were prepared according to the ASTM D-882 test standard, and the tensile strength and elongation at break of the film were tested. The results are shown in Table 1.
具体实施方式三：本实施方式与具体实施方式一至二之一不同的是：均聚聚丙烯045粉料为171克，茂金属聚丙烯PN0040颗粒为28克。其它步骤和参数与具体实施方式一至二之一相同。按照GB/T 2410-2008测试标准制备样条，测试薄膜的透光率。按照ASTMD-882测试标准制备样条，测试薄膜的拉伸强度和断裂伸长率。结果见表1。Embodiment 3: This embodiment differs from Embodiment 1 to Embodiment 2 in that: the homopolymer polypropylene 045 powder is 171 grams, and the metallocene polypropylene PN0040 particles are 28 grams. Other steps and parameters are the same as those in the specific embodiment 1 to 2. Samples were prepared according to GB/T 2410-2008 test standard, and the light transmittance of the film was tested. Samples were prepared according to the ASTM D-882 test standard, and the tensile strength and elongation at break of the film were tested. The results are shown in Table 1.
具体实施方式四：本实施方式与具体实施方式一至三之一不同的是：均聚聚丙烯045粉料为167克，茂金属聚丙烯PN0040颗粒为32克。其它步骤和参数与具体实施方式一至三之一相同。按照GB/T 2410-2008测试标准制备样条，测试薄膜的透光率。按照ASTMD-882测试标准制备样条，测试薄膜的拉伸强度和断裂伸长率。结果见表1。Embodiment 4: This embodiment differs from Embodiment 1 to Embodiment 3 in that: homopolymer polypropylene 045 powder is 167 grams, and metallocene polypropylene PN0040 particles is 32 grams. Other steps and parameters are the same as those in the first to third specific embodiments. Samples were prepared according to GB/T 2410-2008 test standard, and the light transmittance of the film was tested. Samples were prepared according to the ASTM D-882 test standard, and the tensile strength and elongation at break of the film were tested. The results are shown in Table 1.
具体实施方式五：本实施方式与具体实施方式一至四之一不同的是：均聚聚丙烯045粉料为163克，茂金属聚丙烯PN0040颗粒为36克。其它步骤和参数与具体实施方式一至四之一相同。按照GB/T 2410-2008测试标准制备样条，测试薄膜的透光率。按照ASTMD-882测试标准制备样条，测试薄膜的拉伸强度和断裂伸长率。结果见表1。Embodiment 5: This embodiment differs from Embodiment 1 to Embodiment 4 in that: the homopolymer polypropylene 045 powder is 163 grams, and the metallocene polypropylene PN0040 particles are 36 grams. Other steps and parameters are the same as one of the specific embodiments 1 to 4. Samples were prepared according to GB/T 2410-2008 test standard, and the light transmittance of the film was tested. Samples were prepared according to the ASTM D-882 test standard, and the tensile strength and elongation at break of the film were tested. The results are shown in Table 1.
比较例一：Comparative example one:
取干燥后的均聚聚丙烯045粉料179克吹膜，按照GB/T 2410-2008测试标准制备样条，测试薄膜的透光率。按照ASTMD-882测试标准制备样条，测试薄膜的拉伸强度和断裂伸长率。结果见表1。Take 179 grams of dried homopolypropylene 045 powder and blow it into a film, prepare a sample according to the GB/T 2410-2008 test standard, and test the light transmittance of the film. Samples were prepared according to the ASTM D-882 test standard, and the tensile strength and elongation at break of the film were tested. The results are shown in Table 1.
表1 实例一至五所得成品测试结果Table 1 Example 1 to 5 obtained finished product test results
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| CN114987016A (en) * | 2022-04-12 | 2022-09-02 | 广东威孚包装材料有限公司 | Flexible multilayer co-extrusion two-way stretching label film |
| CN114987016B (en) * | 2022-04-12 | 2024-03-15 | 广东威孚包装材料有限公司 | Flexible multilayer coextrusion biaxially oriented label film |
| CN115466461A (en) * | 2022-10-21 | 2022-12-13 | 浙江金海高科股份有限公司 | Modified PP material and preparation method thereof |
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