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Glass fiber reinforced polycarbonate composite material as well as preparation method and application thereof

A technology of polycarbonate and composite materials, applied in the field of polymer materials, can solve the problems that the dispersion of high-content glass fiber has not been actually improved, and the mechanical properties need to be further improved, so as to improve the seriousness of floating fibers, maintain and improve the mechanical properties The effect of solvent resistance

Active Publication Date: 2021-12-31
SHANGHAI KINGFA SCI & TECH +1
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AI Technical Summary

Problems solved by technology

However, the dispersion of high-content glass fibers has not been actually improved, so the mechanical properties need to be further improved

Method used

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0033] The raw materials used in the embodiments of the present invention and comparative examples are as follows:

[0034] Polycarbonate A: Average molecular weight 15,000, Idemitsu FN1500;

[0035] Polycarbonate B: average molecular weight 17,000, Mitsubishi H-3000F;

[0036] Polycarbonate C: average molecular weight 20,000, Mitsubishi H-2000F;

[0037] Polycarbonate D: average molecular weight 35,000, Mitsubishi E-1000F.

[0038] Glass fiber A: ECS11-3.0-T435N, with an average diameter of 10...

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Abstract

The invention discloses a glass fiber reinforced polycarbonate composite material which comprises the following components in parts by weight: 80 parts of polycarbonate; 50 to 100 parts of glass fibers; wherein the weight of the PBAT and / or PBSA is 0.01-0.3 time of the total weight of the glass fibers. According to the invention, by adding a certain amount of PBAT and / or PBSA, the technical defects that the glass fiber reinforced polycarbonate composite material highly filled with glass fibers is serious in fiber floating and easy to generate crazing due to poor fluidity of polycarbonate are improved, the defect of poor solvent resistance of polycarbonate is improved, and the mechanical properties can be well maintained.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a glass fiber reinforced polycarbonate composite material and its preparation method and application. Background technique [0002] Polycarbonate PC products have good transparency, high impact resistance, high heat resistance, good dimensional stability, good flame retardancy and other advantages, and are widely used in automobiles, IT, electronic appliances, home appliances and other fields. [0003] However, due to the high melt viscosity of PC itself, the addition of a large amount of glass fiber usually leads to further deterioration of the fluidity of PC, resulting in more surface problems in the subsequent injection molding process, such as surface gloss Poor degree, the appearance of various lines, etc. These surface defects are difficult to solve even through the adjustment of injection molding temperature and pressure. [0004] In the prior art, the surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08K7/14C08J5/04
CPCC08J5/043C08J2369/00C08J2467/02C08K7/14Y02W90/10
Inventor 田征宇刘志雄张照刘贤文董相茂
Owner SHANGHAI KINGFA SCI & TECH
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