Antiaging glass fiber-reinforced polycarbonate composition and preparation method thereof

A technology of polycarbonate and polycarbonate resin, which is applied in the field of anti-aging glass fiber reinforced polycarbonate composition and its preparation, and modified polycarbonate composition, and can solve the problem of aging resistance of PC/ABS alloy , poor compatibility, low mechanical properties, etc.

Inactive Publication Date: 2010-11-03
CHINA NAT BLUESTAR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of glass fiber reinforced PC/ABS alloy is that the toughness of the material decreases, the floating fiber phenomenon is difficult to control, and the surface finish of the product is relatively low. At the same time, the aging resistance of PC/ABS alloy has not been solved, which limits the application of the material.
It is reported in the literature ("Plastic" NO.4, 1991, P11-14), due to t...

Method used

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  • Antiaging glass fiber-reinforced polycarbonate composition and preparation method thereof

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Embodiment 1

[0051] 55% PC resin by weight percentage, 23% ABS resin by weight percentage, 10% polyethylene graft (graft rate 0.6%) by weight percentage, 1% EBS by weight percentage, 0.4% KH550 by weight percentage, weight percentage The ratio is 0.2% of antioxidant 1010 and 0.4% of antioxidant 1680. They are added to the mixer for pre-mixing in sequence. The mixing temperature is 20°C, the speed of the mixer is 100 rpm, and the mixing time is 5 minutes.

[0052]The pre-mixed material is fed into a twin-screw extruder, and 10% by weight of continuous glass fiber is added in zone 5-6 of the twin-screw extruder for extrusion and granulation. During extrusion, the processing temperature of each section of the twin-screw extruder is set to 220°C for the first section, 240°C for the second section, 260°C for the third section, 260°C for the fourth section, 260°C for the fifth section, and 260°C for the sixth section. , The seventh section is 260°C, the eighth section is 260°C, the ninth section...

Embodiment 2

[0055] 48% PC resin by weight percentage, 20% ABS resin by weight percentage, 20% polyethylene graft (graft rate 0.8%) by weight percentage, 1% EBS by weight percentage, 0.4% KH550 by weight percentage, weight percentage The ratio is 0.2% / 0.4% 1010 / 168, added to the mixer in turn for pre-mixing, the mixing temperature is 20°C, the speed of the mixer is 100 rpm, and the mixing time is 5 minutes.

[0056] The pre-mixed material is fed into a twin-screw extruder, and 10% by weight of continuous glass fiber is added in zone 5-6 of the twin-screw extruder for extrusion and granulation. During extrusion, the processing temperature of each section of the twin-screw extruder is set to 220°C for the first section, 240°C for the second section, 260°C for the third section, 260°C for the fourth section, 260°C for the fifth section, and 260°C for the sixth section. , The seventh section is 260°C, the eighth section is 260°C, the ninth section is 260°C, the die head temperature is 255°C, t...

Embodiment 3

[0059] 35% PC resin by weight percentage, 17% ABS resin by weight percentage, 30% polyethylene graft (graft rate 1%) by weight percentage, 1% EBS by weight percentage, 0.4% KH550 by weight percentage, weight percentage The ratio is 0.2% / 0.4% 1010 / 168, added to the mixer in turn for pre-mixing, the mixing temperature is 20°C, the speed of the mixer is 100 rpm, and the mixing time is 5 minutes.

[0060] The pre-mixed material is fed into a twin-screw extruder, and 10% by weight of continuous glass fiber is added in zone 5-6 of the twin-screw extruder for extrusion and granulation. During extrusion, the processing temperature of each section of the twin-screw extruder is set to 220°C for the first section, 240°C for the second section, 260°C for the third section, 260°C for the fourth section, 260°C for the fifth section, and 260°C for the sixth section. , The seventh section is 260°C, the eighth section is 260°C, the ninth section is 260°C, the die head temperature is 255°C, the...

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Abstract

The invention provides an antiaging glass fiber-reinforced polycarbonate composition, which comprises the following components in part by weight: 20 to 70 percent of polycarbonate resin, 10 to 35 percent of acrylonitrile-butadiene-phenylethylene polymer, 5 to 40 percent of polyethylene graft, 10 to 30 percent of glass fiber reinforce, 0.3 to 0.5 percent of coupling agent, 0.5 to 3 percent of lubricating agent and 0.1 to 1.0 percent of antioxygen. The polycarbonate composition of the invention is free from surface floating fibers has good glossiness, high mechanical performance, high size stability and high thermal resistance. The anti-boiling water aging performance of the polycarbonate composition is improved greatly. The polycarbonate composition can be widely used in electronic and electrical elements such as electrical tool shells, machine bodies, brackets, external gears, three-way valves, mechanical pump parts and the like and is particularly suitable to be used as engineering plastics for use in wet or hot water environments.

Description

technical field [0001] The invention relates to a modified polycarbonate composition, in particular to an aging-resistant glass fiber reinforced polycarbonate composition and a preparation method thereof, belonging to the field of high polymer modification. Background technique [0002] Polycarbonate (PC) is a tasteless, odorless, non-toxic thermoplastic engineering plastic, with outstanding impact resistance, creep resistance, high tensile strength, high heat resistance and cold resistance, medium It has excellent electrical properties, excellent shape and color stability, good light transmission, and the transmittance of visible light can reach about 90%. It is the only transparent product among the five major engineering plastics. [0003] However, due to the high rigidity of the molecular chain and the large steric hindrance of the bisphenol A PC, it has a high melt viscosity, so it is difficult to process and it is difficult to make large-scale products; it is prone to ...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08L51/06C08K13/04C08K7/14
Inventor 邝清林杨军忠姜立忠江枫丹李瑞亢胡衍平
Owner CHINA NAT BLUESTAR GRP CO LTD
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