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

A composite material, low-odor technology, applied in the field of polymer material modification, can solve the problems of large difference in shrinkage rate of glass fiber reinforced polypropylene composite materials, uneven glass fiber arrangement, limited glass fiber fluidity, etc. Low odor and low VOC, the effect of reducing odor and VOC content, improving process stability

Inactive Publication Date: 2020-07-14
CHONGQING POLYCOMP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the existing glass fiber reinforced polypropylene composite materials have limited fluidity of glass fibers in the resin during preparation, and the poor fluidity of pellets results in uneven arrangement of glass fibers and poor surface quality of parts.
At the same time, due to the high degree of orientation of the cylindrical glass fiber in the resin, the shrinkage rate of the glass fiber reinforced polypropylene composite material made of the glass fiber reinforced polypropylene composite material is quite different in each direction, and finally the glass fiber reinforced polypropylene composite material is easily warped and deformed.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Low odor and low VOC glass fiber reinforced polypropylene composite material 1, including the following raw materials:

[0023] 66.5 kg of PP (polypropylene) resin, model PP-HP500P;

[0024] 30 kg chopped flat glass fiber, model ECS305K-3-M4, the cross-section is flat, the cross-section width-thickness ratio is 4:1, and the surface is coated with low-odor and low-VOC sizing;

[0025] 0.14 kg polypropylene wax lubricant;

[0026] 2.8 kg of common compatibilizer, formed by grafting PP with maleic anhydride groups (PP-g-MAH);

[0027] 0.14 kg of phenolic antioxidant, model Irganox 1010, and 0.14 kg of phosphite antioxidant, model Irganox 168;

[0028] 0.28 kg of black masterbatch, the model is CABOT-UN2014.

[0029] The preparation method of glass fiber reinforced polypropylene composite material 1 with low odor and low VOC, prepares raw materials according to the above weight,

[0030] Step 1: Confirm whether the chopped flat glass fiber model ECS305K-3-M4 is a low-od...

Embodiment 2

[0035] Low odor and low VOC glass fiber reinforced polypropylene composite material 2, including the following raw materials:

[0036] 67.2 kg of PP (polypropylene) resin, model PP-HP500P;

[0037] 30 kg chopped flat glass fiber, model ECS305K-3-M4, the cross-section is flat, the cross-section width-thickness ratio is 4:1, and the surface is coated with low-odor and low-VOC sizing;

[0038] 0.14 kg polypropylene wax lubricant;

[0039] 2.1 kg of low-odor and high-activity oligomer compatibilizer, the high-activity oligomer compatibilizer is formed by grafting PP (PP-g-MAH) with maleic anhydride groups and high-reactivity groups, and maleic anhydride groups The grafting rate of the group and the grafting rate of the highly reactive group are 1.3%-1.6%, and the melt index is 150g / 10min (230°C, 2.16kg);

[0040] 0.14 kg of phenolic antioxidant, model Irganox 1010, and 0.14 kg of phosphite antioxidant, model Irganox 168;

[0041] 0.28 kg of black masterbatch, the model is CABOT...

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Abstract

The invention relates to a low-odor low-VOC glass fiber reinforced polypropylene composite material and a preparation method thereof. The low-odor low-VOC glass fiber reinforced polypropylene composite material comprises the following raw materials in parts by weight: 50-90 parts of PP resin, 10-50 parts of chopped flat glass fibers, 0-1 parts of a lubricant, 0-4 parts of a compatilizer, 0-2 partsof an antioxidant and 0-2 parts of black masterbatch. The low-odor and low-VOC chopped flat glass fibers are used for replacing common cylindrical glass fibers, the smell and the VOC content of the glass fiber reinforced polypropylene composite material are reduced, the process stability of double-screw extrusion high-glass-fiber-content drawing and dicing can be improved, the fluidity, the mechanical property and the workpiece appearance of the glass fiber reinforced polypropylene composite material are improved, and buckling deformation of a glass fiber reinforced polypropylene composite material product is reduced. Meanwhile, low-odor and high-activity maleic anhydride grafted PP is used as a compatilizer, extremely high compatibilization efficiency and high reaction active groups of the compatilizer are fully utilized, and the odor and VOC of the glass fiber reinforced PP composite material are further reduced on the premise that the performance is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, in particular to a low-odor and low-VOC glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] Glass fiber reinforced polypropylene composite materials have good mechanical properties, processing properties, weather resistance and dimensional stability, 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, various countries in the world Based on user feedback, major automakers have put forward higher requirements for low-odor and low-VOC performance of automotive interior materials. Moreover, the existing glass fiber-reinforced polypropylene composite material has limited fluidity of glass fibers in the resin during preparation, and the poor fluidity of pellets results in uneven arrang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K13/06C08K9/00C08K7/14C08J5/08
CPCC08J5/08C08J2323/12C08J2451/06C08K13/06C08K9/00C08K7/14
Inventor 梁珊周建刚姚远曾庆文李炜刘奇王艺何勇谭家顶杨小祥
Owner CHONGQING POLYCOMP INT
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