CN101096134A - Sandwich structural fiber board - Google Patents
Sandwich structural fiber board Download PDFInfo
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- CN101096134A CN101096134A CNA2007100574665A CN200710057466A CN101096134A CN 101096134 A CN101096134 A CN 101096134A CN A2007100574665 A CNA2007100574665 A CN A2007100574665A CN 200710057466 A CN200710057466 A CN 200710057466A CN 101096134 A CN101096134 A CN 101096134A
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Abstract
The invention discloses a sandwich structure fiber plate. Flax fiber and polyester with low melting point are adopted as raw material. After two fibers with different proportion are mixed the mixture is combed into net and fire retardant is sprayed on the fiber net. Triple fiber nets are folded into the sandwich structure fiber plate, wherein components of upper and lower skin fiber nets are the same. The proportion of polyester with low melting point in the medium fiber net is small. Fiber net and decorative fabrics are pressed thermally together to fabricate the sandwich structure fiber plate. The invention is the no-harmful circumstance-protection fiber plate with good heat insulation, sound insulation and force performances. It is suitable for internal decorative plate of vehicle door especially.
Description
Technical field
The present invention relates to a kind of sheet material, particularly relate to automotive trim panel and production method thereof.
Background technology
The method of producing the arrangements for automotive doors trim panel both at home and abroad is more.As adding powder adhesives in the fleece, powder adhesives is grouped into by multiple one-tenth, contains formaldehyde, causes environment inside car to pollute easily, threatens driver and conductor's health.Domestic also had in recent years adopt polypropylene and wood powder to make raw material, through batch mixing, extrude and roll after make the plastic wood flour plate, material is mainly solid construction, density is bigger, mechanical performance is relatively poor relatively, is only applicable to low and middle-grade automobiles.Domestic part producer also with regard to the fibrilia automobile inner decoration member application patent.
Taizhou Insulation Material Factory, Jiangsu Prov.'s patent " is made automotive upholstery with neddle bast fibre felt ", the patent No.: 91107025.7.Its method is: flaxen fiber is made fibrofelt through combing, acupuncture, soaks then with synthetic resin, and drying is softening to be handled, and the inside gadget skeleton is made in heating pressurization in metal die again, pastes one deck decorative fabric on the skeleton and makes automotive upholstery through mold pressing.
Jiangyin Yanli Plastics Co., Ltd patent " environment-protecting thermoplastic crude palm fibrilia automobile inner decoration member composite base material ", patent No. 200410041912.X.The composite base material of this patent is that Intermediate substrate is made through the batch mixing lapping by monofilament, flaxen fiber, polyster fibre and polypropylene fiber by Intermediate substrate, surface layer nonwoven and compound the making of bottom PP film.The weight ratio of Intermediate substrate each component is: monofilament and flaxen fiber 10～30%, polyster fibre 30～40%, polypropylene fiber 40～50%.Wherein natural fiber content only accounts for 10～30%, and adopts polypropylene fibre to make the bonding composition, and the hot pressing temperature height is unfavorable for energy savings.
Above-mentioned several patents about flaxen fiber of mentioning are regardless of its production method, and its goods all are homogeneous structurals, and structure is closely knit, and quality is big, be unfavorable for improving insulation and sound insulation value, are unfavorable for improving the environment inside car comfort level.
Summary of the invention
Current, natural fiber grows with each passing day in the suffered attention rate of automobile production industry, with bast-fibre with substitute the phenolic resins series products after low-melting fiber carries out mold pressing and become the new development trend of international automobile interior material.For the consideration of recycling and environmental protection factor, the sign of the existing people's sight line of fading out of waste spinning series products, natural fiber series products such as crudefiber crop, cotton class will be played the part of more and more important role.And along with the development of modern technologies, people have higher requirement to the environment of automotive interior, wish the pernicious gas that noise is little in the car, vibrations are slight, temperature suits, do not have ornament materials to distribute.According to these trend, mainly there are three problems in existing production technology and patent: one, structure homogeneous, densification are unfavorable for improving the performance such as insulation, sound insulation of trim panel.Two, contain the disadvantageous reagent of health.Three, the hot pressing temperature height is unfavorable for energy savings.
For solving the above-mentioned defective that prior art and patent exist, the present invention produces a kind of asepsis environment-protecting, has good insulation, sound insulation value, has the vehicle door interior trim panel of excellent mechanical performances again.Promptly utilize flax fiber and low melt point polyester fiber to be raw material, two kinds of fibers are pressed different proportion mix the back carding, and fibre web sprinkling fire retardant is solved its flammable problem.Triple fibre web layings are made the sandwich fibre web, and it is identical wherein to go up hypodermal layer fibre web composition, and sandwich layer fibre web low melt point polyester fiber ratio is little, then fibre web is made sandwich structural fiber board together with decorative fabric through hot pressing.The present invention is suitable equally to the mixture of other bast-fibre and other thermoplastic fibre.
Technical scheme is as follows:
A kind of sandwich structural fiber board is made by low melt point polyester fiber fiber and flax fiber.
This sandwich structural fiber board is made by three layers of fibre web laying, and wherein upper and lower cortex fibre web composition is identical, and by weight percentage, low melt point polyester fiber fiber, flax fiber ratio are 90～60: 10～40; Sandwich layer fibre web low melt point polyester fiber fiber, flax fiber ratio are 20～50: 80～50, and this sandwich layer fibre web accounts for 30～80% of three layers of web weight.
Described low melt point polyester fiber fiber fusing point is 115 ℃.
It quantitatively is 2500～3500g/m that three layers of superimposed back of fibre web form
2Fibre web.
Three layers of fibre web spray fire retardant, and this fire retardant is FPK8001, is phosphorus-containing compound, and He Te global group in Hong Kong provides.
By weight percentage, this fire retardant accounts for 4～8% of web weight.
The production method of described sandwich structural fiber board comprises the following steps:
1) with described flax fiber and low melt point polyester fiber shredding processing respectively;
2) feed three carding machines respectively according to different ratios, by weight percentage, wherein low melt point polyester fiber, the flax fiber ratio of the feeding of both sides carding machine are identical, are 90～60: 10～40; Low melt point polyester fiber, the flax fiber ratio of middle carding machine feeding are 20～50: 80～50;
3) fibre web that forms of carding machine forms epithelial layer, sandwich layer, the hypodermal layer fibre web of sheet material respectively through three lapping machines, and its center core layer accounts for 30～80% of whole web weight percentages;
4) each layer fibre web sprayed fire retardant, it quantitatively is 2500～3500g/m that three layers of superimposed back of fibre web form
2Fibre web, fibre web is formed sandwich sheet material together with decorative fabric through hot pressing.
The hot pressing pressure of step 4) is 0.5～9MPa, and hot pressing temperature is 140～190 ℃.
The cortex construction densification up and down of sandwich goods, the intermediate core layer structure is fluffy, makes goods both have the good mechanical performance, has good insulation, sound insulation value again, helps improving the comfort level of environment inside car.The low melt point polyester fiber fusing point is 115 ℃, compares as binding material with polypropylene fibre, can reduce hot pressing temperature, helps energy savings.The flaxen fiber proportion makes full use of the natural fiber resource greater than 50% in the goods, has reduced the use of non-renewable resources.Hot pressing is the attachment facework simultaneously, has shortened technological process.
The present invention is applicable to the arrangements for automotive doors trim panel, also is applicable to fields such as furniture, construction material, interior decoration.
Description of drawings
Accompanying drawing is a process chart of the present invention.
Specific embodiment
Embodiment 1
With flaxen fiber and low melt point polyester fiber shredding respectively, feed three carding machines respectively according to different ratios then, wherein low melt point polyester fiber, the flaxen fiber ratio of the feeding of both sides carding machine are identical, are 90: 10, and low melt point polyester fiber, the flaxen fiber ratio of middle carding machine feeding are 20: 80.The fibre web that carding machine forms forms certain quantitative fibre web through lapping machine laying, and three lapping machines form epithelial layer, sandwich layer, the hypodermal layer fibre web of sheet material respectively, and its center core layer accounts for 30% of whole web weight.Each fibre web sprinkling is applied fire retardant FPK8001, be phosphorus-containing compound, provided by Hong Kong He Te global group, fire retardant accounts for 4～8% of web weight.It is 3500g/m that three layers of superimposed back of fibre web form quantitatively
2Fibre web, fibre web is formed sandwich sheet material together with decorative fabric through hot pressing, hot pressing pressure is 0.5MPa, temperature is 190 ℃.
Embodiment 2
The low melt point polyester fiber of feeding both sides carding machine, the ratio of flaxen fiber are 80: 20, and the low melt point polyester fiber of middle carding machine, the ratio of flaxen fiber are 30: 70, and sandwich layer accounts for 40% of whole web weight, and fibre web quantitatively is 3300g/m
2, hot pressing pressure is 2 MPa, temperature is 180 ℃.All the other are with embodiment 1.
Embodiment 3
The low melt point polyester fiber of feeding both sides carding machine, the ratio of flaxen fiber are 70: 30, and the low melt point polyester fiber of middle carding machine, the ratio of flaxen fiber are 35: 65, and sandwich layer accounts for 50% of whole web weight, and fibre web quantitatively is 3100g/m
2, hot pressing pressure is 4MPa, temperature is 175 ℃.All the other are with embodiment 1.
Embodiment 4
The low melt point polyester fiber of feeding both sides carding machine, the ratio of flaxen fiber are 65: 35, and the low melt point polyester fiber of middle carding machine, the ratio of flaxen fiber are 40: 60, and sandwich layer accounts for 60% of whole web weight, and fibre web quantitatively is 3000g/m
2, hot pressing pressure is 6MPa, temperature is 170 ℃.All the other are with embodiment 1.
Embodiment 5
The low melt point polyester fiber of feeding both sides carding machine, the ratio of flaxen fiber are 60: 40, and the low melt point polyester fiber of middle carding machine, the ratio of flaxen fiber are 45: 55, and sandwich layer accounts for 70% of whole web weight, and fibre web quantitatively is 2700g/m
2, hot pressing pressure is 7MPa, temperature is 150 ℃.All the other are with embodiment 1.
Embodiment 6
The low melt point polyester fiber of feeding both sides carding machine, the ratio of flaxen fiber are 70: 30, and the low melt point polyester fiber of middle carding machine, the ratio of flaxen fiber are 50: 50, and sandwich layer accounts for 80% of whole web weight, and fibre web quantitatively is 2500g/m
2, hot pressing pressure is 9MPa, temperature is 140 ℃.All the other are with embodiment 1.
Claims (8)
1. a sandwich structural fiber board is characterized in that, is made by low melt point polyester fiber fiber and flax fiber.
2. according to the described sandwich structural fiber board of claim 1, it is characterized in that this sandwich structural fiber board is made by three layers of fibre web laying, wherein upper and lower cortex fibre web composition is identical, by weight percentage, low melt point polyester fiber fiber, flax fiber ratio are 90～60: 10～40; Sandwich layer fibre web low melt point polyester fiber fiber, flax fiber ratio are 20～50: 80～50, and this sandwich layer fibre web accounts for 30～80% of three layers of web weight.
3. according to the described sandwich structural fiber board of claim 2, it is characterized in that described low melt point polyester fiber fiber fusing point is 115 ℃.
4. according to the described sandwich structural fiber board of claim 2, it is characterized in that it quantitatively is 2500～3500g/m that three layers of superimposed back of fibre web form
2Fibre web.
5. according to the described sandwich structural fiber board of claim 4, it is characterized in that three layers of fibre web spray fire retardant, this fire retardant is a phosphorus-containing compound.
6. according to the described sandwich structural fiber board of claim 5, it is characterized in that by weight percentage, this fire retardant accounts for 4～8% of web weight.
7. according to the production method of claim 1 or 2 or 3 or 4 or 5 or 6 each described sandwich structural fiber boards, it is characterized in that, comprise the following steps:
1) with described flax fiber and low melt point polyester fiber shredding processing respectively;
2) feed three carding machines respectively according to different ratios, by weight percentage, wherein low melt point polyester fiber, the flax fiber ratio of the feeding of both sides carding machine are identical, are 90～60: 10～40; Low melt point polyester fiber, the flax fiber ratio of middle carding machine feeding are 20～50: 80～50;
3) fibre web that forms of carding machine forms epithelial layer, sandwich layer, the hypodermal layer fibre web of sheet material respectively through three lapping machines, and its center core layer accounts for 30～80% of whole web weight percentages;
4) each layer fibre web sprayed fire retardant, it quantitatively is 2500～3500g/m that three layers of superimposed back of fibre web form
2Fibre web, fibre web is formed sandwich sheet material together with decorative fabric through hot pressing.
8. according to the production method of the described sandwich structural fiber board of claim 7, wherein the hot pressing pressure of step 4 is 0.5～9MPa, and hot pressing temperature is 140～190 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100574665A CN101096134A (en) | 2007-05-25 | 2007-05-25 | Sandwich structural fiber board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100574665A CN101096134A (en) | 2007-05-25 | 2007-05-25 | Sandwich structural fiber board |
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| CN101096134A true CN101096134A (en) | 2008-01-02 |
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| CN102294853A (en) * | 2011-06-14 | 2011-12-28 | 江阴延利汽车饰件有限公司 | Hamburg type fibrilia plate and preparation method thereof |
| CN102514274A (en) * | 2011-12-02 | 2012-06-27 | 江苏紫荆花纺织科技股份有限公司 | Natural fiber composite health-care cushion and preparation method thereof |
| CN102514254A (en) * | 2011-12-02 | 2012-06-27 | 江苏紫荆花纺织科技股份有限公司 | Universal health-care board and preparation method thereof |
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| CN102514255A (en) * | 2011-12-02 | 2012-06-27 | 江苏紫荆花纺织科技股份有限公司 | Natural fiber composite plate and manufacturing method thereof |
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2007
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| CN109610015A (en) * | 2018-11-22 | 2019-04-12 | 湖南华雨新材料有限公司 | A kind of preparation method of multilayer bast-fibre plate |
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| CN115246261A (en) * | 2021-12-31 | 2022-10-28 | 齐齐哈尔大学 | China-hemp-fiber-reinforced organic composite material automotive interior panel and preparation method thereof |
| CN115246261B (en) * | 2021-12-31 | 2024-08-27 | 齐齐哈尔大学 | China hemp fiber reinforced organic composite material vehicle interior trim panel and preparation method thereof |
| CN114789587B (en) * | 2021-12-31 | 2024-08-27 | 齐齐哈尔大学 | Chopped fibrilia composite material sound absorbing plate and preparation method thereof |
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