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Reinforced polypropylene composite material capable of replacing ABS as well as preparation method and application of reinforced polypropylene composite material

A composite material and polypropylene technology, applied in the field of reinforced polypropylene composite materials and its preparation, can solve the problems of large molding shrinkage, limited application, and low strength, and achieve the effects of increasing strength, reducing shrinkage, and promoting mixing

Inactive Publication Date: 2018-10-02
合肥卡洛塑业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PP has the disadvantages of large molding shrinkage and low strength, which also limits its application in some specific occasions.

Method used

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  • Reinforced polypropylene composite material capable of replacing ABS as well as preparation method and application of reinforced polypropylene composite material
  • Reinforced polypropylene composite material capable of replacing ABS as well as preparation method and application of reinforced polypropylene composite material
  • Reinforced polypropylene composite material capable of replacing ABS as well as preparation method and application of reinforced polypropylene composite material

Examples

Experimental program
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Embodiment Construction

[0021] In order to better understand the technical characteristics of the present invention, the present invention will be further described by examples below.

[0022] Table 1 shows the components of Examples 1-4 and their percentages by weight, wherein the D50 of talcum powder A is 1-2 microns, and the D50 of talc powder B is 10-15 microns.

[0023] The preparation method is as follows: mix polypropylene, talcum powder, PP-g-MAH, and silicone powder with a high-speed mixer for 8-15 minutes, then add to a twin-screw extruder; at the same time, pass glass fiber powder through the side feeding port Put into a twin-screw extruder, control the barrel temperature of the twin-screw extruder within the range of 180-220°C, mix and extrude and pelletize.

[0024] Table 1:

[0025]

[0026] The polypropylene composite material prepared in Comparative Examples 1-3 and Examples 1-4 was injection molded into samples at 200-230°C, and then heated in a xenon lamp aging box with 0.55w / m ...

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Abstract

The invention provides a reinforced polypropylene composite material capable of replacing ABS as well as a preparation method and application of the reinforced polypropylene composite material. The material is prepared from the following raw materials in parts by weight: 60 to 81 parts of polypropylene, 5 to 10 parts of glass fibers, 2 to 5 parts of PP-g-MAH and 2 to 5 parts of silicone powder; talcum powder is a mixture formed by mixing talcum powder A with talcum powder B according to the mass ratio ranging from 1:2 to 2:1; D50 of the talcum powder A is 1 to 2 microns and D50 of the talcum powder B is 10 to 15 microns. According to the preparation method disclosed by the invention, by adding glass fiber powder and the talcum powder with different particle sizes into the polypropylene, the strength and the toughness of a final material are close to those of an ABS material; in addition, by adding a special silicone powder additive, the surface of a product subjected to injection molding has no floating fibers and the reinforced polypropylene composite material can replace the ABS material.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a reinforced polypropylene composite material which can replace ABS, a preparation method and application thereof. Background technique [0002] ABS is a terpolymer of acrylonitrile-butadiene-styrene. It is a thermoplastic polymer material with high strength, good toughness and easy processing. Because of its high strength, corrosion resistance, and high temperature resistance, it is often used to make plastic casings for instruments. However, the price of ABS is relatively high, and due to the existence of double bonds in the butadiene component, it is prone to yellowing and discoloration, and its parts are more prone to yellowing or even chalking when exposed to the outside. [0003] With the recent rise in material prices and cost pressures, many people want to replace ABS with low-density, easy-to-process, and low-cost polypropylene (PP). However, PP has the dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L51/06C08L83/04C08K7/14C08K3/34
CPCC08K2201/003C08K2201/004C08L23/14C08L2205/03C08L51/06C08L83/04C08K7/14C08K3/34
Inventor 石允慧汪龙存
Owner 合肥卡洛塑业科技有限公司
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