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A continuous-glass-fibre-reinforced polycarbonate composite material and a preparing method thereof

A polycarbonate and glass fiber technology, which is applied in the field of continuous glass fiber reinforced polycarbonate composite materials and its preparation, can solve the problems of poor interlayer interface bonding of composite materials, poor overall performance of composite materials, and poor glass fiber wettability, etc. problems, to achieve the effect of improving mechanical properties, low volatile content, and uniform resin distribution

Inactive Publication Date: 2014-10-01
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the rigid chain structure of polycarbonate, it has a high viscosity during processing, and the high viscosity of polycarbonate melt causes its processing fluidity to be poor, which makes polycarbonate poor in wettability to glass fiber, and the composite layer The interfacial bonding between them is also poor, resulting in poor overall performance and poor appearance of the composite material.

Method used

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  • A continuous-glass-fibre-reinforced polycarbonate composite material and a preparing method thereof
  • A continuous-glass-fibre-reinforced polycarbonate composite material and a preparing method thereof
  • A continuous-glass-fibre-reinforced polycarbonate composite material and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Take the raw material according to the following parts by weight:

[0042]

[0043] Glass fiber reinforced polycarbonate composites were prepared by the following steps:

[0044] (1) Polycarbonate film is prepared by hot melt casting method:

[0045] Will contain 40 parts of polycarbonate, 1 part of cyclic butylene terephthalate CBT100, 0.02 parts of coupling agent 3-aminopropyltriethoxysilane (KH550), 0.1 part of antioxidant 1010 and 0.2 parts The combination material of lubricant silicone powder is prepared into a thin film, and the thickness of the thin film is 0.070mm;

[0046] (2) According to figure 1 Schematic diagram of the production process of continuous glass fiber reinforced polycarbonate prepreg tape, 100 parts of glass fiber cloth 1 is superimposed on the middle of two layers of polycarbonate film 2, and then superimposed on the middle of two layers of release paper 3, and passed through a hot pressing roller 4. The temperature of the hot pressing ro...

Embodiment 2

[0050] Take the raw material according to the following parts by weight:

[0051]

[0052] Glass fiber reinforced polycarbonate composites were prepared by the following steps:

[0053] (1) Polycarbonate film made by blow molding:

[0054] Will contain 55 parts of polycarbonate, 2 parts of cyclic butylene terephthalate CBT100, 0.1 part of coupling agent 3-glycidyl ether oxypropyl trimethoxysilane (KH560), 0.2 parts of antioxidant 168 and 0.4 parts of lubricant TAF (modified ethylene bis fatty acid amide, Suzhou Xingtai Photochemical Auxiliary Co., Ltd.) is prepared into a film, and the thickness of the film is 0.094mm;

[0055] (2) According to figure 1 Schematic diagram of the production process of continuous glass fiber reinforced polycarbonate prepreg tape, 100 parts of glass fiber cloth 1 is superimposed on the middle of two layers of polycarbonate film 2, and then superimposed on the middle of two layers of release paper 3, and passed through a hot pressing roller 4. ...

Embodiment 3

[0059] Take the raw material according to the following parts by weight:

[0060]

[0061]

[0062] Glass fiber reinforced polycarbonate composites were prepared by the following steps:

[0063] (1) Polycarbonate film is made by hot melt casting or blow molding:

[0064] Will contain 70 parts of polycarbonate, 3 parts of cyclic butylene terephthalate CBT100, 0.3 parts of coupling agent 3-(methacryloyloxy)propyl trimethoxysilane (KH570), 0.3 parts of antioxidant ( Antioxidant 1010 and antioxidant 168 (the ratio by weight is 2:1) and 0.6 parts of lubricant RH-313 (pentaerythritol stearate, Dongguan Jianxing Plastic Products Co., Ltd.) are mixed to form a film, and the thickness of the film is 0.120mm;

[0065] (2) According to figure 1 Schematic diagram of the production process of continuous glass fiber reinforced polycarbonate prepreg tape, 100 parts of glass fiber cloth 1 is superimposed on the middle of two layers of polycarbonate film 2, and then superimposed on th...

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Abstract

The invention belongs to the technical field of polymer composite materials and relates to a continuous-glass-fibre-reinforced polycarbonate composite material and a preparing method thereof. The composite material is prepared from following components by weight: 100 parts of glass fibre, 1-5 parts of cyclic butylene terephthalate, 0.02-1.0 part of a coupling agent, 0.1-0.5 part of an antioxidant, 0.2-1.0 part of a lubricant and 40-100 parts of polycarbonate. The composite material has high strength and modulus. The composite material is mainly used for high-grade mobile phones, laptops, and other electronic products. In addition, a proper amount of the cyclic butylene terephthalate is added to blend and modify the polycarbonate, and the compatibility between the cyclic butylene terephthalate and the polycarbonate is good, and therefore the fluidity of the polycarbonate is largely improved only by an extremely little amount of addition of the cyclic butylene terephthalate and mechanical properties of the material are hardly influenced.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and relates to a continuous glass fiber reinforced polycarbonate composite material and a preparation method thereof. Background technique [0002] Continuous fiber-reinforced thermoplastic is a polymer-based composite material developed in the early 1970s. It consists of a thermoplastic resin matrix, continuous reinforcement fibers and some additives. The resin is evenly distributed among the fibers to form a continuous phase. To fix the spatial position of the fiber and transmit the load inside the material, the resin matrix endows the continuous fiber reinforced thermoplastic composite with excellent mechanical properties, thermal properties, processability and chemical corrosion resistance. Most thermoplastic resins can be used as the resin matrix. Such as polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polyphenylene sulfide (PPS), polyether ether ketone (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K13/04C08K7/14C08K5/159B29C70/30
Inventor 杨桂生刘明昌
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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