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Glass fiber reinforced PC composite material

A composite material and glass fiber technology, which is applied in the field of glass fiber reinforced PC composite materials, can solve the problems of high notch sensitivity, poor fatigue resistance, and non-wear resistance, so as to increase tensile strength, improve physical properties, and improve various Anisotropic effect

Inactive Publication Date: 2015-06-03
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polycarbonate (PC), as a kind of engineering plastic with good performance and wide application, also has some defects, such as prone to stress cracking, poor fatigue resistance, high notch sensitivity, not wear-resistant, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A glass fiber-reinforced PC composite material, the components of which are: PC 65%, glass fiber 20%, glass microspheres 10%, styrene-maleic anhydride copolymer (SMA) 3%, hindered phenol Antioxidant 1010 and phosphite antioxidant 168 by mass 1:2 compound 0.2%, TAF 0.8%, dioctyl phthalate (DOP) 1%. Wherein, the PC is bisphenol A type aromatic polycarbonate with a weight-average molecular weight of 20000-40000 g / mol; the glass fiber has a diameter of 8-12 μm, a length of 3-6 mm, and an aspect ratio of 7 Alkali-free chopped glass fibers between ~9; the glass microspheres have a diameter of 10-100 μm and a density of 0.4-1.1 g / cm 3 between spherical particles.

[0020] Preparation method: (1) Dry PC in a blast dryer at 110°C-130°C for 3-4 hours, and set aside for use; (2) Weigh the dried PC and other components according to the weight ratio, respectively Add it into the high-speed mixer, fully stir for 3-15 minutes, and discharge; (3) Add the mixture in step (2) into the ...

Embodiment 2

[0022] A glass fiber-reinforced PC composite material, the components of which are: PC 75%, glass fiber 15%, glass microspheres 5%, styrene-maleic anhydride copolymer (SMA) 3%, hindered phenol 0.3% compound of quasi-antioxidant 1010 and phosphite antioxidant 168 at a ratio of 1:2 by mass, 1% of pentaerythritol stearate (PETS), 0.7% of dibutyl phthalate (DBP) . Wherein, the PC is bisphenol A aromatic polycarbonate with a weight-average molecular weight of 20000-40000 g / mol; the glass fiber has a diameter of 8-12 μm, a length of 3-6 mm, and an aspect ratio of 7 Alkali-free chopped glass fibers between ~9; the glass microspheres have a diameter of 10-100 μm and a density of 0.4-1.1 g / cm 3 between spherical particles.

[0023] Preparation method: (1) Dry PC in a blast dryer at 110°C-130°C for 3-4 hours, and set aside for use; (2) Weigh the dried PC and other components according to the weight ratio, respectively Add it into a high-speed mixer, fully stir for 3 to 15 minutes, an...

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Abstract

The invention discloses a glass fiber reinforced PC composite material. The glass fiber reinforced PC composite material comprises the following components in percentage by mass: 50-80 percent of PC, 10-25 percent of glass fiber, 2-15 percent of a glass bead, 2-4 percent of a compatilizer, 0.1-1 percent of a composite antioxidant, 0.1-1.5 percent of a lubricating agent and 0.5-2 percent of a plasticizer. In comparison with the prior art, by the synergic reinforcement effect of co-mixed glass fiber and glass bead, the glass fiber reinforced PC composite material disclosed by the invention has the advantages of improving the tensile strength, bending strength and bending modulus of the PC composite material, also commendably improving the anisotropism of glass fiber reinforcement so that the mechanical properties of the PC composite material are improved, also maintaining the good electric properties, heat resistance, chemical corrosion resistance and the like of the PC composite material; moreover; therefore, the glass fiber reinforced PC composite material can be widely applied to the industries of machinery, instruments, electrics and the like especially under the condition that the requirements on strength, heat resistance and precision are relatively high.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a glass fiber reinforced PC composite material. Background technique [0002] As an engineering plastic with good performance and wide application, polycarbonate (PC) also has some defects, such as prone to stress cracking, poor fatigue resistance, high notch sensitivity, and not wear-resistant. Glass fiber reinforced PC can effectively overcome the above-mentioned shortcomings of PC. Since glass fibers generally use chopped strands (CS), their aspect ratio (fiber length to fiber diameter) is relatively large, so the reinforced PC causes anisotropy. Contents of the invention [0003] The object of the present invention is to provide a glass fiber reinforced PC composite material with high strength, high stability and high gloss. [0004] The technical solution adopted by the present invention to solve the technical problem is: a glass fiber reinforced PC composite m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K13/04C08K7/14C08K7/20B29B9/06B29C47/92B29C48/92
CPCC08L69/00C08J5/043C08J2369/00C08K2201/003C08K2201/004C08K2201/014C08K2201/016C08L2201/08C08L35/06C08K13/04C08K7/14C08K7/20C08K5/1345C08K5/526C08K5/12
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE
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