CN105235300A - Natural fiber/polymer fibrous layer laminated automobile chair-back sheet material and production method - Google Patents
Natural fiber/polymer fibrous layer laminated automobile chair-back sheet material and production method Download PDFInfo
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- CN105235300A CN105235300A CN201510704705.6A CN201510704705A CN105235300A CN 105235300 A CN105235300 A CN 105235300A CN 201510704705 A CN201510704705 A CN 201510704705A CN 105235300 A CN105235300 A CN 105235300A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/68—Seat frames
- B60N2/686—Panel like structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/067—Wood fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/10—Fibres of continuous length
- B32B2305/20—Fibres of continuous length in the form of a non-woven mat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/51—Elastic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/08—Cars
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
A disclosed natural fiber/polymer fibrous layer laminated automobile chair-back sheet material comprises an integrated sheet material formed through lamination and combination of a first surface layer, a core layer and a second surface layer, the first surface layer and the second surface layer are non-woven fabrics, the core layer is a mixed fiber plate, the mixed fiber plate is prepared by compacting natural fiber and needle felt employing polymer fiber as the main composition, and the natural fiber is at least one selected from fibrilia, bamboo fiber, palm fiber and wood fiber. The invention also discloses a production method for the natural fiber/polymer fibrous layer laminated automobile chair-back sheet material. The automobile chair-back sheet material possesses the characteristics of being light in weight, small in density, excellent in breathability, and excellent in strength and toughness. By employing twice baking compaction and cold-press shaping processing in the production process, the sheet material density is improved.
Description
Technical field
The present invention relates to sheet material field, be specifically related to a kind of natural fiber/polymer fiber lamination back of seat for vehicle sheet material and production method.
Background technology
Chair back sheet material of the prior art mainly contains metal material, solid wood material, high molecular polymer material, glued board, density board and particieboard material.Further, as automobile seat backboard, need to take into account intensity, thickness and weight: under namely unlike material backboard has the condition of same intensity, thickness is little as far as possible, reaches the maximized demand of inner space of vehicle; Meanwhile, in order to adapt to the development trend of automotive light weight technology, also need weight to minimize.
The seat back intensity of metal material (being generally steel plate) is high, and thickness is little, but shortcoming is that weight is large, and the elastic limit of steel plate is less, easily plastic deformation occurs, and needs seat to disassemble taking-up steel plate during maintenance, then corrects steel plate.In general, be difficult to judge whether that rectification puts in place when sheet metal is corrected, therefore its rectification difficulty is large.Therefore to have maintenance cost higher for the seat back of metal material.The seat back toughness that the various conventional solid wood beech of solid wood material, pine, China fir are made is not strong, and there is very strong fragility, and high-grade solid wood is as higher in unit prices such as cherry, oak, elms, the seat back thickness reaching same intensity is larger, and automobile seat backboard consumption is huge, be applicable to large-scale production.A kind of automotive seat foaming plate adopting polypropylene and polyethylene mixed foaming is by a certain percentage disclosed in CN103304889A, utilize the pore of foaming plate inside, the probability of " broken needle " in process made by minimizing sheet material and textile, the density and hardness of backboard can be reduced simultaneously, the weight of backboard can be reduced to a certain extent, but fragility increases after pointing out in description to foam simultaneously, strongly clash into lower backboard and easily rupture, be unfavorable for the safety of personnel by bus.The seat back of glued board material has certain intensity and toughness, but its intensity depends primarily on the kind of glue, and poor stability.Density board and particieboard take timber as raw material, and most of particieboard inside is inner is nutty structure, is not easy to milling type, and easily causes the phenomenon of sudden and violent tooth when cutting out plate, require higher to process equipment.Comparatively particieboard is poor for density board fiberboard intensity.In addition, density board smooth surface of the prior art is smooth, material is fine and closely woven, and the mold pressing according to band pitted skin is dull and stereotyped to density board mold pressing, and the stiction between the surface produced and textile is not strong, does not reach the instructions for use of chair back sheet material.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, provide a kind of from the high and natural fiber of the good-toughness/polymer fiber lamination back of seat for vehicle sheet material of heavy and light, intensity.
For achieving the above object, technical scheme of the present invention is: a kind of natural fiber/polymer fiber lamination back of seat for vehicle sheet material, it is characterized in that, comprise the first surface layer, sandwich layer, the second surface layer through toasting the integral type sheet material suppressed and be composited, described first surface layer and the second surface layer are non-woven fabrics, sandwich layer is composite fibre plate, composite fibre plate is that the needle punched felt being main component with natural fiber and polymer fiber is suppressed, and natural fiber is be selected from least one in flaxen fiber, bamboo fibre, monkey grass and wood-fibred.
The mixed proportion of natural fiber and polymer fiber depends on the requirement of strength of sheet material, through preferred technical scheme is, in described composite fibre plate, the percentage by weight of natural fiber is 30 ~ 70%.As preferably, in the composite fibre plate that natural fiber and polymer fiber felt are suppressed, the percentage by weight of natural fiber is 45 ~ 55%, natural fiber and polymer fiber have certain length, acupuncture makes mutually to tangle between two kinds of fibers, be more or less the same according to the content of two kinds of fibers in the fibre matting of proportional arrangement in preferred version, larger through the bonding interface area between baking and compacting latter two fiber, contribute to the intensity and the toughness that improve sheet material entirety.The selection of polymer fiber: can be polyamide fibre, acrylic fibers, polypropylene fibre, polyvinyl, terylene.
Preferred technical scheme is, non-woven fabrics fibrous identical with the polymer fiber material in needle punched felt.Said structure contributes to the compacting compound between the non-woven fabrics of surface layer and sandwich layer, the phenomenon peeled off after avoiding occurring long-time use.
Preferred technical scheme is, described first surface layer and/or the second surface layer arranged outside have flexible textile layer or spray pile layer.Concrete can be realized bonding with between the first surface layer, the second surface layer of textile layer by the mode putting glue.Preferred non-woven fabrics kind is needle punched non-woven fabrics further, needle punched non-woven fabrics is more coarse compared with the nonwoven surface of other kinds, contribute to increasing bond area between itself and flexible textile layer and two-layer between confficient of static friction, thus increase the adhesive strength of the first surface layer and/or the second surface layer and flexible textile layer.
Preferred technical scheme is, described polymer fiber is polypropylene fibre, and described natural fiber is be selected from least one in ramee, flax fiber, jute and abaca fibre.Polypropylene fibre have quality light, be out of shape adaptable feature, quality gently can reduce the deadweight of chair back sheet material, is out of shape adaptable, and contribute to the toughness increasing chair back sheet material, after pressurized, sheet material has certain resilience.
Preferred technical scheme is, also comprises fortifying fibre in described composite fibre plate, and fortifying fibre is be selected from least one in basalt continuous fiber and wheat straw micro-nano fibril, and the percentage by weight that the weight of fortifying fibre accounts for composite fibre plate is 0.1 ~ 5%.
Another object of the present invention with provide a kind of and be suitable for producing from the high and production method of the natural fiber of good-toughness sheet material/polymer fiber lamination back of seat for vehicle sheet material of heavy and light, intensity, it is characterized in that, described production method comprises the steps:
The first step: natural fiber and polymer fiber are mixed carding in proportion, after lapping multilayer, composite fibre felt is made in acupuncture;
Second step: using as the non-woven fabrics of the first surface layer and the second surface layer and composite fibre felt stacked laminated fabric felt, laminated fabric felt is once toasted, then the laminated fabric felt after once baking is once suppressed, once suppress composite board;
3rd step: carry out secondary baking to the once compacting composite board of second step gained, then carries out secondary compacting to the once compacting composite board after baking, obtains secondary compacting composite board;
4th step: the secondary of the 3rd step gained compacting composite board is colded pressing heat treatment, obtains lamination chair back sheet material finished product.
The process conditions of heat treatment of colding pressing are: temperature of colding pressing 0 ~ 8 DEG C, cold pressing pressure 8 ~ 12Mpa, and cold pressing treatment duration is 5 ~ 100s.The locomitivity of the polymer molecular chain in the secondary compacting composite board of higher temperature is stronger, sub-chain motion can be there is on the surface of flaxen fiber, also have the slippage of particle and the direction orientation along power simultaneously, clad is closely formed on the surface of flaxen fiber, secondary is suppressed composite board and is cooled rapidly by heat treatment of colding pressing, molecular chain movement weakens, the rapid crystallization of polymer molecule is the surface that stable rigidity form is coated on flaxen fiber, the sheet material compactness extent obtained after high pressure compacting is higher, inner bi-material bond strength is larger, the rigidity of sheet material is also larger, the plastic deformation power that can bear is also larger.In addition, due to the thermal coefficient of expansion degree varies of polymer and natural fiber, can form trickle hole in sheet material inside after rapid cooling, the expansion in the sheet material under the condition of high temperature occupies above-mentioned hole, and the change in size that sheet material is shown under the high temperature conditions is less.
Wherein, the process conditions of secondary baking are: secondary baking temperature 220 ~ 270 DEG C, and secondary baking duration is 50 ~ 110s; The process conditions of secondary compacting are: secondary pressing pressure 9 ~ 15Mpa, and secondary compacting duration is 50 ~ 120s.
Wherein, the process conditions of once toasting are: baking temperature 210 ~ 260 DEG C, and once toasting duration is 50 ~ 110s; The process conditions of once suppressing are: a pressing pressure is 1.5 ~ 2.5Mpa, and once suppressing duration is 100 ~ 200s.The laminated fabric felt once toasted is relatively fluffy,
Advantage of the present invention and beneficial effect are:
The present invention is pressed into integral type sheet material by arranging nonwoven layer on natural fiber/polymer fiber composite fibre plate surface, wherein natural fiber is be selected from least one in flaxen fiber, bamboo fibre, monkey grass and wood-fibred, utilize poisture-penetrability and the gas permeability of natural fiber, backboard sheet material gas permeability is excellent;
Coarse and the fiber lack of alignment on top layer of plate surface, is convenient to be formed effectively bonding with textile etc.;
Back of seat for vehicle sheet material of the present invention does not adopt adhesive, the environmental requirement of automotive compounded use sheet material;
Natural fiber and the lapping of synthetic fibers carding puncture after compacting, through twice baking compression process and heat treatment of colding pressing, the back of seat for vehicle sheet material density of gained is high, identical eligible under in prior art steel matter backboard compare, resilience is excellent, because its density is much smaller than steel plate density, deadweight is lighter, and under hot-cool environment, change in size is little.
Accompanying drawing explanation
Fig. 1 is the structural representation of natural fiber of the present invention/polymer fiber lamination back of seat for vehicle sheet material embodiment 1;
Fig. 2 is the structural representation of natural fiber of the present invention/polymer fiber lamination back of seat for vehicle sheet material embodiment 2.
In figure: 1, the first surface layer; 2, the second surface layer; 3, composite fibre plate; 4, flexible textile layer.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Embodiment 1
As shown in Figure 1, S1 is called for short in embodiment 1(table, natural fiber/polymer fiber lamination back of seat for vehicle sheet material down together), comprise the first surface layer, sandwich layer, the second surface layer through toasting the integral type sheet material suppressed and be composited, described first surface layer and the second surface layer are non-woven fabrics, sandwich layer is composite fibre plate, and composite fibre plate is that the needle punched felt being main component with natural fiber and polymer fiber is suppressed, and natural fiber is monkey grass.
In composite fibre plate, the percentage by weight of monkey grass is 50%, and all the other are polymer fiber, and the polymer fiber of embodiment 1 is terylene, and non-woven fabrics is terylene non-woven fabric.Composite fibre plate in embodiment 1 does not comprise fortifying fibre.
The production method of the back of seat for vehicle sheet material of embodiment 1 comprises the steps:
The first step: natural fiber and polymer fiber are mixed carding in proportion, after lapping multilayer, composite fibre felt is made in acupuncture;
Second step: using as the non-woven fabrics of the first surface layer and the second surface layer and composite fibre felt stacked laminated fabric felt, laminated fabric felt is once toasted, then the laminated fabric felt after once baking is once suppressed, once suppress composite board.The process conditions of once toasting are: baking temperature 210 ~ 220 DEG C, and once toasting duration is 50s; The process conditions of once suppressing are: a pressing pressure is 1.5Mpa, and once suppressing duration is 200s;
3rd step: carry out secondary baking to the once compacting composite board of second step gained, then carries out secondary compacting to the once compacting composite board after baking, obtains secondary compacting composite board.The process conditions of secondary baking are: secondary baking temperature 220 ~ 230 DEG C, and secondary baking duration is 110s; The process conditions of secondary compacting are: secondary pressing pressure 9Mpa, and secondary compacting duration is 120s.
4th step: to cold pressing heat treatment to the secondary of the 3rd step gained compacting composite board, the process conditions of heat treatment of colding pressing are: temperature of colding pressing 0 ~ 3 DEG C, and cold pressing pressure 8Mpa, and cold pressing treatment duration is 100s, obtain lamination chair back sheet material finished product.
Embodiment 2
As shown in Figure 2, embodiment 2 is with the difference of embodiment 1: in embodiment 2, the first surface layer of back of seat for vehicle sheet material and the second surface layer arranged outside have flexible textile layer.
Fiber in composite fibre plate is flaxen fiber, is specially ramee, and polymer fiber is acrylic fibers, and non-woven fabrics is nonwoven polypropylene fabric; Composite fibre plate in embodiment 2 does not comprise fortifying fibre.
The production method of back of seat for vehicle sheet material needs the step increasing bonding flexible textile layer after sizing of colding pressing.For avoiding flexible textile layer on the impact of properties of product, the technical indicator of product detects the sheet material obtained for sizing of colding pressing and carries out.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1, and the fiber in composite fibre plate is the mixing of wood-fibred and bamboo fibre, and mixed weight is than being 1:1, and polymer fiber is polyvinyl, and non-woven fabrics is terylene non-woven fabric.Composite fibre plate in embodiment 3 does not comprise fortifying fibre.
Embodiment 4
Embodiment 4 is with the difference of embodiment 1, and the natural fiber in composite fibre plate is tossa and abaca fibre, and mixed weight is than being 1:2, and polymer fiber is polypropylene fibre, and non-woven fabrics is nonwoven polypropylene fabric.Composite fibre plate in embodiment 4 does not comprise fortifying fibre.
Embodiment 5
Embodiment 5 is with the difference of embodiment 4, and the natural fiber percentage by weight in composite fibre plate is 30%.
Embodiment 6
Embodiment 6 is with the difference of embodiment 4, and the natural fiber percentage by weight in composite fibre plate is 70%.
Embodiment 7
Embodiment 6 is from the different of embodiment 4, adds 5% fortifying fibre in composite fibre plate, and fortifying fibre is basalt continuous fiber.
Embodiment 8
Embodiment 8 is from the different of embodiment 4, adds 0.1% fortifying fibre in composite fibre plate, and fortifying fibre is wheat straw micro-nano fibril.
Comparative example 1
Comparative example 1:(table in be called for short D1, lower with) sheet material composition identical with embodiment 4, merely through once toasting compression process;
Comparative example 2: the sheet material composition of comparative example 2 is identical with embodiment 4, through once toasting compacting and twice baking compression process, not to its heat treatment of colding pressing.
The production method technological parameter of back of seat for vehicle sheet material sees the following form:
According to DIN52352 testing standard, to the bending modulus of performance under product reset condition normal condition, (T represents laterally the sample of embodiment 1-8 and comparative example 1-2, L represents longitudinally), bending strength and tensile strength detects, and detect according to the water absorption rate of SAEJ315 testing standard to sample, detected value is as follows:
The contrast of each factor of above-described embodiment finds:
The selection of natural fiber: can be flaxen fiber, bamboo fibre, brown fiber and wood-fibred, be preferably flaxen fiber, reason is that flaxen fiber has higher stretch modulus compared with other fibers, absorbing sound and lowering noise better effects if, what wherein more have choosing is ramie, jute and abaca, and its fibre strength is more excellent.
the selection of polymer fiber: can be polyamide fibre, acrylic fibers, polypropylene fibre, polyvinyl, terylene, also can be two or more mixing in polymer fiber in above-mentioned five, be preferably polypropylene fibre, its reason with, flaxen fiber is high temperature resistant, its mechanical strength strengthens with the rising of temperature within the specific limits, when temperature reaches 180 ~ 190 DEG C, its mechanical strength is best, temperature is too high can destroy fibr tissue, the mechanical strength of flaxen fiber is sharply declined, polypropylene fibre fusing point is 158 ~ 180 DEG C, the fusing point of other polymer fibers has higher, have lower, therefore polypropylene fibre can make the mechanical strength of composite fibre plate more optimize.The polymer fiber bonding degree that can strengthen surface layer with sandwich layer between identical with the Fiber Materials of non-woven fabrics, through hot-water soak after 4 hours in embodiment 2 and 3, there is bubble in interlayer, embodiment 1 and 4 microscopic examination surface layer is that polymer fusion is bonding with the bonding interface of sandwich layer.[0034]the ratio of natural fiber and polymer fiber: the mechanical strength that multipair increase laminate crossed by polypropylene fibre is useful, but can difficulty of processing be increased simultaneously, particularly when carrying out fly-cutting to laminate, the heat that fly-cutting produces instantaneously can cause the polypropylene of incision to soften; Contrary, natural fiber is too much, because the binding ability between natural fiber and metallic plate is poor, and the peel strength of meeting lower layer pressing plate.
Fortifying fibre has back of seat for vehicle sheet material and significantly strengthens effect, and contrasted can be drawn by sample performance, the enhancing effect of the wheat straw micro-nano fibril that density low-intensity is high is better than basalt continuous fiber.
Non-woven fabrics is preferably needle punched non-woven fabrics, and the thickness of needle punched non-woven fabrics is 1 ~ 5mm.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. natural fiber/polymer fiber lamination back of seat for vehicle sheet material, it is characterized in that, comprise the first surface layer, sandwich layer, the second surface layer through toasting the integral type sheet material suppressed and be composited, described first surface layer and the second surface layer are non-woven fabrics, sandwich layer is composite fibre plate, composite fibre plate is that the needle punched felt being main component with natural fiber and polymer fiber is suppressed, and natural fiber is be selected from least one in flaxen fiber, bamboo fibre, monkey grass and wood-fibred.
2. natural fiber according to claim 1/polymer fiber lamination back of seat for vehicle sheet material, it is characterized in that, in described composite fibre plate, the percentage by weight of natural fiber is 30 ~ 70%.
3. natural fiber according to claim 1/polymer fiber lamination back of seat for vehicle sheet material, is characterized in that, non-woven fabrics fibrous identical with the polymer fiber material in needle punched felt.
4. natural fiber according to claim 1/polymer fiber lamination back of seat for vehicle sheet material, is characterized in that, described first surface layer and/or the second surface layer arranged outside have flexible textile layer or spray pile layer.
5. natural fiber according to claim 3/polymer fiber lamination back of seat for vehicle sheet material, it is characterized in that, described polymer fiber is polypropylene fibre, and described natural fiber is be selected from least one in ramee, flax fiber, jute and abaca fibre.
6. natural fiber according to claim 5/polymer fiber lamination back of seat for vehicle sheet material, it is characterized in that, also fortifying fibre is comprised in described composite fibre plate, fortifying fibre is be selected from least one in basalt continuous fiber and wheat straw micro-nano fibril, and the percentage by weight that the weight of fortifying fibre accounts for composite fibre plate is 0.1 ~ 5%.
7. a production method for natural fiber/polymer fiber lamination back of seat for vehicle sheet material, it is characterized in that, described production method comprises the steps:
The first step: natural fiber and polymer fiber are mixed carding in proportion, after lapping multilayer, composite fibre felt is made in acupuncture;
Second step: using as the non-woven fabrics of the first surface layer and the second surface layer and composite fibre felt stacked laminated fabric felt, laminated fabric felt is once toasted, then the laminated fabric felt after once baking is once suppressed, once suppress composite board;
3rd step: carry out secondary baking to the once compacting composite board of second step gained, then carries out secondary compacting to the once compacting composite board after baking, obtains secondary compacting composite board;
4th step: the secondary of the 3rd step gained compacting composite board is colded pressing heat treatment, obtains lamination chair back sheet material finished product.
8. the production method of natural fiber according to claim 5/polymer fiber lamination back of seat for vehicle sheet material, it is characterized in that, the process conditions of heat treatment of colding pressing are: temperature of colding pressing 0 ~ 8 DEG C, cold pressing pressure 8 ~ 12Mpa, and cold pressing treatment duration is 5 ~ 100s.
9. the production method of natural fiber according to claim 5/polymer fiber lamination back of seat for vehicle sheet material, it is characterized in that, the process conditions of secondary baking are: secondary baking temperature 220 ~ 270 DEG C, and secondary baking duration is 50 ~ 110s; The process conditions of secondary compacting are: secondary pressing pressure 9 ~ 15Mpa, and secondary compacting duration is 50 ~ 120s.
10. the production method of natural fiber according to claim 5/polymer fiber lamination back of seat for vehicle sheet material, it is characterized in that, the process conditions of once toasting are: baking temperature 210 ~ 260 DEG C, and once toasting duration is 50 ~ 110s; The process conditions of once suppressing are: a pressing pressure is 1.5 ~ 2.5Mpa, and once suppressing duration is 100 ~ 200s.
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| CN107415351A (en) * | 2017-05-10 | 2017-12-01 | 长春博超汽车零部件股份有限公司 | A kind of fiber-reinforced polymer felt material and its composite board and preparation method with polypropylene woven object plane layer |
| WO2018032647A1 (en) * | 2016-08-15 | 2018-02-22 | 北京新能源汽车股份有限公司 | Vehicle seat, vehicle, and method for manufacturing vehicle seat |
| CN107776444A (en) * | 2016-08-31 | 2018-03-09 | 昆山吉美川纤维科技有限公司 | The preparation method and safety seat of a kind of safety seat |
| CN107775861A (en) * | 2016-08-31 | 2018-03-09 | 昆山吉美川纤维科技有限公司 | A kind of seat back and preparation method thereof |
| CN107791542A (en) * | 2016-08-31 | 2018-03-13 | 昆山吉美川纤维科技有限公司 | A kind of preparation method and children's seat of children's seat backboard |
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| CN108384107A (en) * | 2018-02-12 | 2018-08-10 | 中国林业科学研究院木材工业研究所 | A kind of bamboo fibre is the composite material for vehicle and preparation method thereof of main reinforcement |
| CN109070778A (en) * | 2016-05-12 | 2018-12-21 | 戈登·默里设计有限公司 | Vehicle seat back |
| CN109113289A (en) * | 2018-08-24 | 2019-01-01 | 江阴延利汽车饰件股份有限公司 | A kind of green ecological flaxen fiber integrates wall coverings plate and preparation method thereof |
| CN110126856A (en) * | 2019-03-25 | 2019-08-16 | 江阴延利汽车饰件股份有限公司 | Built-in wardrobe and preparation method between a kind of environment-friendly type bullet train |
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| CN119610818A (en) * | 2025-02-11 | 2025-03-14 | 烟台正海合泰科技股份有限公司 | Fiber reinforced thermoplastic composite material automobile interior ceiling and preparation method thereof |
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| WO2018032647A1 (en) * | 2016-08-15 | 2018-02-22 | 北京新能源汽车股份有限公司 | Vehicle seat, vehicle, and method for manufacturing vehicle seat |
| CN107791542A (en) * | 2016-08-31 | 2018-03-13 | 昆山吉美川纤维科技有限公司 | A kind of preparation method and children's seat of children's seat backboard |
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| CN107825812A (en) * | 2017-10-23 | 2018-03-23 | 苏明义 | A kind of environment friendly light quantifies the preparation method of composite plate |
| CN108384107B (en) * | 2018-02-12 | 2020-12-04 | 中国林业科学研究院木材工业研究所 | A kind of vehicle composite material with bamboo fiber as main reinforcement and preparation method thereof |
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| CN108342834A (en) * | 2018-02-28 | 2018-07-31 | 中国林业科学研究院木材工业研究所 | A kind of flexible interpenetrating networks porous material and preparation method can be used for molding |
| CN109113289A (en) * | 2018-08-24 | 2019-01-01 | 江阴延利汽车饰件股份有限公司 | A kind of green ecological flaxen fiber integrates wall coverings plate and preparation method thereof |
| CN110126856B (en) * | 2019-03-25 | 2020-08-04 | 江阴延利汽车饰件股份有限公司 | Environment-friendly high-speed train workshop wall cabinet and preparation method |
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| CN113119542A (en) * | 2020-01-10 | 2021-07-16 | 上海汽车集团股份有限公司 | Heat insulation pad and manufacturing method thereof |
| CN111331990A (en) * | 2020-04-16 | 2020-06-26 | 上海圣峰建材科技股份有限公司 | Light wall decoration plate and preparation method thereof |
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