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A kind of waste glass fiber reinforced polypropylene composite material and preparation method thereof

A glass fiber and composite material technology, which is applied in the field of glass fiber waste reinforced polypropylene composite material and its preparation, can solve the problems such as the inability to quantitatively feed the glass fiber waste, the fluffy and messy glass fiber waste, and achieve obvious cost advantages. , low price, the effect of large residual length

Active Publication Date: 2021-11-30
中石化宁波新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The second object of the present invention is to provide a method for preparing a glass fiber waste reinforced polypropylene composite material, which solves the problem of using a traditional twin-screw extruder to melt with the resin due to the fluffy and messy glass fiber waste in the prior art. When blending, glass fiber waste cannot be quantitatively fed through the main feed and side feed

Method used

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  • A kind of waste glass fiber reinforced polypropylene composite material and preparation method thereof
  • A kind of waste glass fiber reinforced polypropylene composite material and preparation method thereof
  • A kind of waste glass fiber reinforced polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] use as figure 1 According to the shown processing technology, 62.6 parts of polypropylene (melt index is 11.2g / 10min), 30 parts of glass fiber waste (average length is 100mm), 0.4 part of dicumyl peroxide, and itaconic acid are weighed according to the weight formula. 4 parts of diglycidyl ester, 2 parts of lubricant (stearic acid amide), 1 part of antioxidant (antioxidant 1010 and antioxidant 168 compounded at 1:1). Then, the above-mentioned raw materials are added into the blending chamber of the high-speed blending system through the feeding hopper at one time, the feeding hopper is closed, the blending speed is adjusted to 2000 rpm, and the temperature of the material rises to 210° C., melted and blended for 5 seconds, and then discharged. The melted blended material is pressed into a sheet, and after cooling, it is pulverized and granulated in a pulverizer to obtain a glass fiber waste reinforced polypropylene composite material pellet.

[0043] The obtained pelle...

Embodiment 2

[0045] use as figure 1 According to the processing technology shown, 52.6 parts of polypropylene (melt index is 11.2g / 10min), 40 parts of glass fiber waste (average length is 100mm), 0.4 part of dicumyl peroxide, itaconic acid 4 parts of diglycidyl ester, 2 parts of lubricant (stearic acid amide), 1 part of antioxidant (antioxidant 1010 and antioxidant 168 compounded at 1:1). Then, the above-mentioned raw materials are added into the blending chamber of the high-speed blending system through the feeding hopper at one time, the feeding hopper is closed, the blending speed is adjusted to 2000 rpm, and the temperature of the material rises to 210° C., melted and blended for 5 seconds, and then discharged. Material, the melted blended material is pressed into flakes, and after cooling, it is pulverized and granulated in a pulverizer to obtain a pellet of glass fiber waste silk reinforced polypropylene composite material, and its SEM photo is as follows figure 2 shown.

[0046] ...

Embodiment 3

[0048] use as figure 1 According to the processing technology shown, 41.5 parts of polypropylene (melt index is 11.2g / 10min), 50 parts of glass fiber waste (average length is 100mm), 0.5 part of dicumyl peroxide, itaconic acid 5 parts of diglycidyl ester, 2 parts of lubricant (stearic acid amide), 1 part of antioxidant (antioxidant 1010 and antioxidant 168 compounded at 1:1). Then, the above-mentioned raw materials are added into the blending chamber of the high-speed blending system through the feeding hopper at one time, the feeding hopper is closed, the blending speed is adjusted to 2000 rpm, and the temperature of the material rises to 210° C., melted and blended for 5 seconds, and then discharged. The melted blended material is pressed into a sheet, and after cooling, it is pulverized and granulated in a pulverizer to obtain a glass fiber waste reinforced polypropylene composite material pellet.

[0049] The obtained pellets were injected into standard test specimens in ...

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Abstract

The invention discloses a glass fiber waste silk reinforced polypropylene composite material, which is made of the following raw materials in parts by weight: 25-75 parts of polypropylene, 20-70 parts of glass fiber waste silk, 0.1-1 part of organic Oxides, 1-12 parts of diglycidyl itaconate, 0.1-3 parts of lubricant and 0.1-2 parts of antioxidant. The invention also discloses a preparation method of glass fiber waste silk reinforced polypropylene composite material. The above-mentioned components are melted and blended through high-speed blending system equipment, and after being pressed into tablets and cooled, they are granulated with a pulverizer to obtain a A glass fiber waste reinforced polyolefin composite material. Compared with the chopped glass fiber micro-reinforced polypropylene composite material, the glass fiber waste silk reinforced polypropylene composite material prepared by the present invention has obvious cost advantages and can generate great economic benefits. In addition, the present invention can comprehensively reuse glass fiber micro-waste, reduce environmental pressure, can produce obvious social benefits, and has very broad development prospects.

Description

technical field [0001] The invention relates to the field of plastic modification and comprehensive utilization of glass fiber waste, in particular to a glass fiber waste reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. It has many advantages such as good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. It is widely used in various fields of the national economy. During the production and processing of glass fiber and glass fiber products, a large amount of glass fiber waste will be generated, such as glass fiber mess, waste yarn, selvedge and felt edge, etc. Glass fiber waste has been processed by deep burial in the land, but this will cause serious pollution to the land and cause a lot of waste of land resources. Today, as environmental protection is increasingly valued by people, it is obvious...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K13/04C08K7/14C08K5/1515C08K5/20
CPCC08K5/1515C08K5/20C08K7/14C08K13/04C08K2201/004C08L23/12
Inventor 杨勇黄骏成张小琴张若愚朱锦
Owner 中石化宁波新材料研究院有限公司