Mildew-proof, flame-retardant and wear-resistant integrated odorless plant fiber reinforced thermoplastic polymer composite material as well as preparation and application thereof

A thermoplastic polymer and enhanced thermoplastic technology, used in the field of automotive interior materials, can solve the problem of not meeting the requirements of the OEM for the use of polymer-based materials, the incompatible interface between plant fibers and thermoplastic polymers, and affecting the macroscopic physical and mechanical properties. and other problems to achieve the effect of improving interfacial compatibility, reducing moisture adsorption sites, and enhancing interfacial compatibility

Active Publication Date: 2021-10-01
INT CENT FOR BAMBOO & RATTAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]However, due to the chemical composition and biological structure of plant fiber raw materials, plant fibers and thermoplastic polymers have an incompatible interface, which is not conducive to load transfer, thus affecting the macroscopic The physical and mechanical properties cannot meet the requirements of the main engine factory for the key properties of polymer-based materials

Method used

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  • Mildew-proof, flame-retardant and wear-resistant integrated odorless plant fiber reinforced thermoplastic polymer composite material as well as preparation and application thereof
  • Mildew-proof, flame-retardant and wear-resistant integrated odorless plant fiber reinforced thermoplastic polymer composite material as well as preparation and application thereof

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preparation example Construction

[0024] The invention provides a method for preparing a mildew-proof, flame-retardant and wear-resistant integrated plant fiber reinforced thermoplastic polymer composite material, comprising the following steps:

[0025] modifying the interface of the plant fiber to obtain the modified plant fiber;

[0026] Blending granulation or self-assembly of thermoplastic polymers and additives to obtain modified thermoplastic polymers;

[0027] mixing the modified plant fiber and the modified thermoplastic polymer, and spinning to obtain a composite fiber;

[0028] The composite fibers are sequentially subjected to dedusting, carding and laying, needle felting, hot pressing and edge sealing treatment to obtain a plant fiber reinforced thermoplastic polymer composite material;

[0029] The auxiliary agent includes odor absorbing agent, antifungal agent, flame retardant, anti-wear agent and interface compatibilizer.

[0030] In the present invention, unless otherwise specified, the requ...

Embodiment 1

[0060] Add 40g of KH550 to 1960g of absolute ethanol, stir for 5min, then add 100g of bamboo fiber, continue to stir for 25min, seal it with plastic wrap and let it stand for 30min, wash and dry the obtained product with deionized water, then put it in an oven at 150°C for Heat treatment, obtains modified bamboo fiber;

[0061] Polypropylene and additives (porous calcium silicate 5wt%, cassia bark oil 3wt%+nano-titanium dioxide 1.5wt%, basic magnesium sulfate whisker synergistic microcapsule red phosphorus 15wt%, hollow glass microspheres 10wt%, maleic anhydride branched polypropylene 2.5wt%) placed in a high mixer and blended for 30min, then placed in a granulator for granulation, and the resulting material was granulated in a granulator, and the temperatures of the first zone to the fourth zone of the granulator were sequentially Modified polypropylene is obtained at 150±10°C, 170±10°C, 190±10°C and 160±10°C;

[0062]The modified bamboo fiber and the modified polypropylene ...

Embodiment 2

[0064] According to the raw material ratio and steps of Example 1, KH550 is used to modify the interface of bamboo fiber and hemp fiber respectively, and the resulting 35wt% modified bamboo fiber and 15wt% modified hemp fiber are put into an oven at 170°C for heat treatment. Obtain modified composite fiber;

[0065] Polypropylene and additives (5wt% of nano-montmorillonite, 3wt% of chitosan+1.5wt% of nano-titanium dioxide, 15wt% of expandable graphite, 10wt% of floating beads, 2.5wt% of maleic anhydride grafted polyPOE) Mix in the high-mixer for 30 minutes, then put it in the granulator for granulation, and cut the obtained material into pellets in the granulator. ℃, 190±10℃ and 160±10℃ to obtain modified polypropylene;

[0066] The modified composite fiber and modified polypropylene are mixed and spun according to the ratio of 50wt%:50wt%, and the resulting composite fiber is successively dedusted, mechanically carded, laid, and needle-punched into felt, and then hot-pressed...

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Abstract

The invention provides a mildew-proof, flame-retardant and wear-resistant integrated odorless plant fiber reinforced thermoplastic polymer composite material as well as a preparation method and application thereof, and belongs to the technical field of automotive interior materials. Plant fibers are subjected to interface modification treatment, so that the interface compatibility of the plant fibers and a thermoplastic polymer is improved. The thermoplastic polymer is modified by using auxiliaries, so that the composite material has mildew-proof, flame-retardant, wear-resistant and odor-adsorbing properties, and meanwhile, the interface compatibility with the plant fibers is enhanced. The plant fiber reinforced thermoplastic polymer composite material prepared by the invention integrates mildew resistance, flame retardance, wear resistance and odorlessness, and can be used for automotive trim.

Description

technical field [0001] The invention relates to the technical field of automotive interior materials, in particular to an odorless plant fiber reinforced thermoplastic polymer composite material integrated with mildew resistance, flame retardancy and wear resistance, and its preparation and application. Background technique [0002] With the gradual development of the auto parts industry, the environmental pollution it brings is also increasing. Automobile lightweight is one of the important measures to solve this difficult problem. Studies have shown that plant fiber composite materials are very suitable for the lightweight of auto parts due to their low density, high strength, and convenient processing. focus on. [0003] However, due to the chemical composition and biological structure of plant fiber raw materials, plant fibers and thermoplastic polymers have an incompatible interface, which is not conducive to load transfer, thus affecting the macroscopic physical and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/12C08K7/26C08K3/22C08K7/08C08K9/10C08K13/06C08K3/02C08K7/28C08K3/34C08K7/24C08K5/09C08K13/02
CPCC08L97/02C08L23/12C08K2003/2241C08K2201/011C08K2003/026C08L2201/02C08K7/26C08K3/22C08K7/08C08K9/10C08K13/06C08K3/02C08K7/28C08K3/346C08K7/24C08K3/34C08K5/09C08K13/02
Inventor 程海涛王翠翠王戈顾少华李明鹏郑海军李琪微李文婷陈季荷
Owner INT CENT FOR BAMBOO & RATTAN
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