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

A technology of polycarbonate and composite materials, which is applied in the field of engineering plastics, can solve the problems of complex and time-consuming processes, low yield, and low efficiency, and achieve the effects of improving compatibility and dispersion, reducing content, and reducing impact

Active Publication Date: 2017-10-17
SHENZHEN HALCYON NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, molding embedded metal sheets is mainly through degreasing treatment of metal inserts, preheating metal sheets, coating a layer of rubber or polyurethane elastic buffer layer on metal inserts, and oven baking after molding to eliminate residual stress. processing, but its yield rate is low, the process is complicated, time-consuming, energy-consuming, and low in efficiency

Method used

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

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Embodiment 1

[0045] Embodiment 1: The glass fiber reinforced polycarbonate composite material of this embodiment, by mass parts, includes the following components:

[0046]

[0047] The method for preparing the above-mentioned polycarbonate composition comprises the following steps:

[0048] Reduce meshing blocks in the screw combined melting section of the twin-screw extruder, add ZME toothed screw elements in the mixing and homogenizing section, and combine the twin-screw extruder into a low-shear high-dispersion screw;

[0049] In parts by mass, mix 85 parts of polycarbonate resin, 0.5 part of ethylene-vinyl acetate graft copolymer, 2 parts of silicone toughening agent, 0.5 part of hyperdispersant, 0.1 part of antioxidant, and 0.3 part of lubricant , to prepare a mixture;

[0050] Put the above mixture into the adjusted twin-screw extruder, and put in 10 parts of glass fiber from the side feed port, heat and melt at 290°C and a speed of 400r / min to make the mixture blend into plasti...

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Abstract

The invention provides a glass fiber reinforced polycarbonate composite material and a preparation method thereof. The polycarbonate composite material is mainly prepared from the following raw materials in parts by mass: 60-90 parts of polycarbonate resin, 0.2-7 parts of ethylene-vinyl acetate graft copolymer, 1-10 parts of toughening agent, 5-30 parts of glass fiber, 0.2-2 parts of hyperdispersant, 0.1-0.5 part of antioxidant and 0.2-1 part of lubricant. The present invention makes full use of the synergistic effect between various raw material components, and optimizes the content of each raw material component to improve the impact resistance, flexibility, adhesion and durability of the polycarbonate composite material. High and low temperature stress cracking performance; that is, it has high and low temperature stress cracking resistance when molding embedded metal sheets; at the same time, it solves the problem of floating fibers.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a glass fiber reinforced polycarbonate composite material and a preparation method thereof. Background technique [0002] Polycarbonate (English name Polycarbonate, referred to as PC), is a colorless and transparent amorphous thermoplastic polymer material. It has high strength, high toughness, high heat resistance, excellent electrical insulation, elongation, dimensional stability and chemical corrosion resistance; it is also self-extinguishing, easy to strengthen, flame retardant, non-toxic, hygienic, easy to color, Excellent properties such as shock resistance, so the amount used in engineering plastics ranks second only to polyamide (PA). It is widely used in glazing industry, lighting in automobile industry, instrument panel system, sockets and shells in electrical and electronic industry, hollow sun panels in building materials, optical discs and drinking wate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L51/06C08L51/08C08K7/14
Inventor 卢其勇赖华林邓冬颜
Owner SHENZHEN HALCYON NEW MATERIALS
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