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Linen fiber reinforced polypropylene automobile interior part injection molding method

A technology of automotive interior parts and hemp fiber, which is applied in the field of injection molding of hemp fiber reinforced polypropylene automotive interior parts, can solve the problems of poor sunlight resistance and poor compatibility between hemp fiber and polypropylene, and achieve easy cleaning and compatibility Enhanced performance and improved sun resistance

Inactive Publication Date: 2017-09-05
岳西县同兴尼龙橡胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the poor compatibility between hemp fiber and polypropylene, it is easy to degrade, and its resistance to sunlight is poor, so it needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] A kind of injection molding method of hemp fiber reinforced polypropylene automotive interior parts, the steps are:

[0018] (1) Carding and cutting the hemp fibers to obtain short fibers;

[0019] (2) According to the volume ratio of ethyl orthosilicate: tetrabutyl titanate: absolute ethanol: hydrochloric acid: deionized water = 25:21:124:0.9:2.8, weigh tetrabutyl titanate, Ethyl orthosilicate and absolute ethanol are mixed into liquid A, ethyl orthosilicate: absolute ethanol is 25:80 by volume, hydrochloric acid: absolute ethanol: deionized water is mixed by volume 1:41:3 into B liquid;

[0020] (3) Add liquid B dropwise to liquid A while stirring at a rate of 1 drop per 4 seconds. After the dropwise addition, stir for 1.5 hours, then add nanocrystalline cellulose to the mixed solution, nanocrystalline cellulose: orthosilicic acid Ethyl ester mass ratio is 1:6, stir for 0.5 hours;

[0021] (4) adding hemp fiber, stirring evenly, filtering, drying in a supercritical...

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Abstract

The invention provides a linen fiber reinforced polypropylene automobile interior part injection molding method. According to the invention, the surface and pores of a linen fiber are filled with porous nano-scale silicon dioxide, titanium dioxide and nano crystalline cellulose, so that the toughness and light fastness of the linen fiber are improved; meanwhile, the polypropylene compatibility is improved, so that the material after injection molding has improved strength, improved durability, light fastness, antibacterial property and wear resistance, and is easy to clean; and the linen fiber and polypropylene are subjected to injection molding to obtain strips, and the strips are subjected to re-injection molding, so that the anisotropy of the linen fiber is eliminated, thereby improving the dimensional stability of the injection molding product.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to an injection molding method for hemp fiber reinforced polypropylene automotive interior parts. Background technique [0002] In recent years, with the rapid increase of automobile production and ownership, resource and environmental problems have become increasingly prominent, and automobile lightweight and environmental protection have become the current development direction and research hotspot. More and more automobile manufacturers use composite materials to replace traditional automobile materials to realize the lightweight of automobiles, and achieve the purpose of saving energy and reducing pollution emissions. In particular, reinforced composite materials prepared with hemp fibers have attracted extensive attention due to their low density, high strength, good mechanical properties, and their characteristics of being renewable, degradable, recyclable, and low i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L97/02C08J5/06D06M15/05D06M11/79D06M11/46D06M101/06
CPCC08J5/06C08J2323/12C08J2497/02C08L23/12C08L2201/08C08L2205/16D06M11/46D06M11/79D06M15/05D06M16/00D06M2101/06D06M2200/25D06M2200/35C08L97/02Y02P20/54
Inventor 查国东储振亚储亮李云雷查卫东
Owner 岳西县同兴尼龙橡胶制品有限公司
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