Glass fiber enhanced polycarbonate (PC) and preparation method thereof

A polycarbonate, reinforced technology, applied in the field of glass fiber reinforced polycarbonate (PC) and its preparation, can solve the problems of poor glass fiber wettability, reduced impact resistance, exposed glass fiber, etc., to achieve good appearance, The effect of reducing the processing temperature of the product and preventing the glass fiber from being exposed

Inactive Publication Date: 2015-02-11
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the very poor wettability of PC to glass fiber, the two are not well compatible. At present, glass fiber reinforced PC products on the market, especially when the glass fiber content is above 20%, have a sharp drop in impact strength and significantly lower impact resistance. , its impact strength is only 80~110J / M, and most of them have the defects of exposed glass fiber and rough product surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A glass fiber-reinforced polycarbonate (PC), the composition of which is: polycarbonate (PC) 65%, glass fiber 20%, POE-g-MAH 10%, methyl methacrylate - 3.5% glycidyl methacrylate-propylene ethyl ester terpolymer (MGE), 0.3% compound of hindered phenolic antioxidant 1010 and phosphite antioxidant 168 in a mass ratio of 1:2, TAF bright lubricant 1.2%. Wherein, the glass fiber is an alkali-free chopped glass fiber with a diameter of 8-12 μm, a length of 3-6 mm, and an aspect ratio of 7-9, and its surface is treated with a silane coupling agent.

[0017] Preparation method: (1) Dry polycarbonate (PC) in a blower dryer at a temperature of 110°C to 130°C for 3 to 4 hours, and set aside; (2) Weigh the dried polycarbonate according to the weight ratio (PC), POE-g-MAH, methyl methacrylate-glycidyl methacrylate-propylene ethyl ester terpolymer (MGE), hindered phenolic antioxidant 1010 and phosphite antioxidant 168 Add the compound and TAF bright lubricant in the ratio of 1:2 by...

Embodiment 2

[0019] A glass fiber-reinforced polycarbonate (PC), the composition of which is: polycarbonate (PC) 80%, glass fiber 10%, SEBS-g-MAH 7%, methyl methacrylate - 2% glycidyl methacrylate-propylene ethyl ester terpolymer (MGE), 0.2% compound of hindered phenolic antioxidant 1010 and phosphite antioxidant 168 at a mass ratio of 1:2, TAF bright lubricant 0.8%. Wherein, the glass fiber is an alkali-free chopped glass fiber with a diameter of 8-12 μm, a length of 3-6 mm, and an aspect ratio of 7-9, and its surface is treated with a silane coupling agent.

[0020] Preparation method: (1) Dry polycarbonate (PC) in a blower dryer at a temperature of 110°C to 130°C for 3 to 4 hours, and set aside; (2) Weigh the dried polycarbonate according to the weight ratio (PC), SEBS-g-MAH, methyl methacrylate-glycidyl methacrylate-propylene ethyl ester terpolymer (MGE), hindered phenolic antioxidant 1010 and phosphite antioxidant 168 Add the compound and TAF bright lubricant in the ratio of 1:2 by ...

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Abstract

The invention discloses a glass fiber enhanced polycarbonate (PC) and a preparation method thereof. The glass fiber enhanced polycarbonate comprises the following ingredients according to mass percentage: 50-90% of polycarbonate, 10-30% of glass fiber, 5-15% of flexibilizer, 2-6% of compatilizer, 0.1-1% of anti-oxidant and 0.3-1.5% of TAF bright lubricant. The glass fiber enhanced polycarbonate (PC) has the beneficial effect that compared with prior art, The prepared glass fiber enhanced polycarbonate (PC) has high strength, good appearance, and excellent processing performance and electrical property, the TAF bright lubricant can prevent glass fiber exposition, the surface-brightening degree of the products can be simultaneously enhanced, processing temperature of the products can be produced, and wearing effect of machinery equipment is reduced.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a glass fiber reinforced polycarbonate (PC) and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is a widely used engineering plastic first industrialized by German Bayer Company in 1958, and its output currently ranks second in engineering plastics. PC is a non-toxic, odorless, colorless and transparent material with high light transmittance, high refractive index, excellent mechanical properties, good heat resistance, flame resistance and insulation, and its products are stable in size. It is widely used in Mechanical, electrical and electronic, medical equipment and optical lighting and other fields. However, PC also has some defects, such as poor processing performance, easy stress cracking, sensitive notch resistance, poor wear resistance and poor chemical resistance. Blending modification of PC and glass fiber can effectively improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L33/12C08K13/06C08K9/06C08K7/14C08J5/08
CPCC08L69/00C08J5/08C08L2205/03
Inventor 张正殷海英
Owner QINGDAO XINZHAN PLASTIC
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