Glass fiber reinforced PC/PE alloy material and preparation method thereof

Abstract

The invention discloses a glass fiber reinforced PC / PE alloy material and a preparation method thereof. The glass fiber reinforced PC / PE alloy material comprises the following components in parts by weight: 100 parts of polycarbonate, 2-20 parts of high-density polyethylene, 1-10 parts of maleic anhydride-glycidyl methacrylate double-grafted high-density polyethylene, 0.5-5 parts of talcum powder, 5-25 parts of glass fiber and 0.1-2 parts of processing aid. In the invention, because the home-made maleic anhydride-glycidyl methacrylate double-grafted high-density polyethylene is used as compatilizer and toughening modifier of PC / PE in the glass fiber reinforced PC material, the affinity of a glass fiber and a resin matrix is improved, thereby obtaining the glass fiber reinforced PC / PE alloy material with good surface appearance and better performance.

Description

[technical field] [0001] The invention relates to the technical field of polymer materials, in particular to a glass fiber reinforced PC / PE alloy material and a preparation method thereof. [Background technique] [0002] Glass fiber reinforced PC materials are widely used in automobiles, electronic appliances, home appliance materials and other fields due to their good strength, toughness and thermal properties. However, since PC is a non-crystalline material and has a high viscosity during processing, it is difficult for the glass fibers in glass fiber-reinforced PC materials to be arranged in a certain direction, and the surface of the product obtained by injection molding is prone to floating fibers, roughness and unevenness. problems such as smoothness. [0003] At present, the general method to solve the floating fiber problem on the surface of glass fiber reinforced PC is: [0004] 1. Add a certain proportion of high fluidity polyester with good compatibility with PC...

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Problems solved by technology

However, the reinforcement effect of these inorganic filler materials on PC is far lower than that of glass fiber, and the toughness, strength, and heat distortion temperature are greatly deteriorated, especially for some structural components, such as tapping screws and buckle parts. 1. Structures that need to be stressed, such as electric meter casings and other products that require high heat resistance, have a very limited range of use

[0006] At present, there are some reports and progress in the industry on the use of PC / PE alloy materials to reduce the processing viscosity of PC, but the compatibility of the two components of PC and PE is difficult to solve, resulting in low performance of PC / PE alloy. Improve the practicability of PC / PE alloy materials

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