Low-odor low-VOC and low-haze glass fiber reinforced polypropylene composite material and preparation method thereof

A composite material and low-odor technology, applied in the field of polymer material modification, can solve the problems of limited glass fiber content, large shrinkage rate difference, easy warping and deformation of parts, etc., to improve mechanical properties, reduce odor and fog Degree, the effect of improving the bonding strength

Pending Publication Date: 2021-03-26
CHONGQING POLYCOMP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing glass fiber and mineral raw materials are mixed reinforced polypropylene composite materials. The traditional glass fiber is cylindrical and highly oriented in the resin, so that the shrinkage rate of the glass fiber reinforced polypropylene composite material made in each direction is quite different. , resulting in the warping deformation of glass fiber reinforced polypropylene composite parts
At the same time, in order to reduce the weight and ensure the appearance quality of the parts, the content of glass fiber added is limited, resulting in low mechanical properties of the final parts.

Method used

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  • Low-odor low-VOC and low-haze glass fiber reinforced polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Low haze, low odor and low VOC glass fiber reinforced polypropylene composite material 1, including the following raw materials:

[0030] 60.2 kg of PP (polypropylene) resin, model PP-S2040;

[0031] 10 kg chopped flat high-strength high-modulus glass fiber, model TM305K-3-M4, the cross-section is flat, the cross-section width-to-thickness ratio is 4:1, and the surface is coated with low-odor and low-VOC sizing;

[0032] 25 kg of talcum powder masterbatch, model JH-103T, 80% talc powder content;

[0033] 0.14 kg polypropylene wax lubricant;

[0034] 2.1 kg of low-odor and high-activity compatibilizer, the low-odor and high-activity compatibilizer is formed by grafting PP (PP-g-MAH) with maleic anhydride groups and high-reactivity groups, and the grafting of maleic anhydride groups The grafting rate and the grafting rate of highly reactive groups are 1.3%-1.6%, and the melt index is 150g / 10min (230°C, 2.16kg);

[0035] 0.14 kg of phenolic antioxidant, type Irganox 101...

Embodiment 2

[0045] Low odor, low VOC and low haze mineral raw material reinforced (glass fiber reinforced) polypropylene composite material 2, including the following raw materials:

[0046] 61.2 kg of PP (polypropylene) resin, model PP-S2040;

[0047] 7 kg of POE (ethylene octene copolymer) resin, model POE-SK3980;

[0048] 25 kg of talcum powder masterbatch, model JH-103T, 80% talc powder content;

[0049] 0.14 kg polypropylene wax lubricant;

[0050] 2.1 kg of low-odor and high-activity compatibilizer, the low-odor and high-activity compatibilizer is formed by grafting PP (PP-g-MAH) with maleic anhydride groups and high-reactivity groups, and the grafting of maleic anhydride groups The grafting rate and the grafting rate of highly reactive groups are 1.3%-1.6%, and the melt index is 150g / 10min (230°C, 2.16kg);

[0051] 0.14 kg of phenolic antioxidant, type Irganox 1010, and 0.14 kg of phosphite antioxidant, type Irganox 168;

[0052] 0.28 kg of black masterbatch, the model is CABOT...

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Abstract

The invention provides a low-haze low-odor low-VOC glass fiber and mineral raw material hybrid reinforced polypropylene composite material and a preparation method thereof, low-odor low-VOC chopped flat high-strength high-modulus glass fibers are used for replacing common cylindrical glass fibers, so that the odor, the VOC content and the haze of the polypropylene composite material are reduced, the flowability, the mechanical property and the workpiece appearance of the polypropylene composite material can also be improved, and the buckling deformation of a polypropylene composite material product is reduced. Meanwhile, low-odor high-activity maleic anhydride grafted PP is used as a compatilizer, so that the odor, VOC and haze of the glass fiber and mineral raw material hybrid reinforcedPP composite material are further reduced. Meanwhile, high-purity and low-volatility polypropylene wax is used as a lubricant, so that the haze is further reduced on the premise of ensuring the flowability of the glass fibers and talcum powder in the PP resin. Meanwhile, a microporous polymer adsorbent HL-4200 with a very good adsorption effect is adopted to further adsorb volatile small molecularsubstances, and a double-vacuum process is adopted, so that the odor and haze are further reduced.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, in particular to a glass fiber reinforced polypropylene composite material with low odor, low VOC and low haze and a preparation method thereof. Background technique [0002] In addition to good mechanical properties, processability, and weather resistance, glass fiber and mineral raw material hybrid reinforced polypropylene composite materials also have good appearance quality, and are widely used in automobiles, home appliances and other fields. With the improvement of people's living standards, especially the rapid development of the automobile industry, major automobile manufacturers in the world have put forward higher requirements for the low-odor and low-VOC performance of automotive interior materials, especially automotive lights. Materials also put forward higher requirements for low haze performance. The existing glass fiber and mineral raw materials are mixed re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L51/06C08L101/12C08K9/04C08K7/14C08K3/34C08K5/134C08K5/526C08K13/06C08J5/08
CPCC08J5/08C08J2323/12C08J2423/12C08J2423/08C08J2451/06C08J2400/12C08K9/08C08K7/14C08K3/34C08K5/1345C08K5/526C08K13/06
Inventor 梁珊姚远周建刚曾庆文王艺何勇谭家顶杨小祥高冰心
Owner CHONGQING POLYCOMP INT
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