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Reactive compatibility modified PC/AES alloy and preparation method thereof

A reaction compatibilization and modification technology, which is applied in the field of polymer materials, can solve the problems of material performance degradation and achieve the effects of improving product performance degradation, simple preparation method, and improved bending strength

Inactive Publication Date: 2015-07-01
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the purposes of the present invention is to provide a method for utilizing styrene-maleic anhydride copolymer reaction for PC / AES alloy at the processing temperature, the problem that the AES dispersed phase is easy to agglomerate and cause the material performance to decline, and the existing technical deficiencies. Finally, a reactive compatibilization modified PC / AES alloy with excellent mechanical properties, good weather resistance, stable phase morphology at processing temperature, simple preparation process, simple method and obvious compatibilization effect was obtained.

Method used

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  • Reactive compatibility modified PC/AES alloy and preparation method thereof
  • Reactive compatibility modified PC/AES alloy and preparation method thereof
  • Reactive compatibility modified PC/AES alloy and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Weigh 70 parts of polycarbonate, 30 parts of AES, 1 part of styrene-maleic anhydride copolymer, 0.5 part of antioxidant, 1.2 parts of composite lubricant, 3 parts of antistatic agent, and 4 parts of ultraviolet absorber. The polycarbonate, AES, and SMA are placed in a vacuum drying oven, and the PC pellets are dried at 100°C for 12 hours to obtain dry PC pellets; AES pellets are dried at 85°C for 8 hours to obtain dry pellets; SMA The powder was dried at 80°C for 5 hours to obtain a dry powder. The dried materials, antioxidants, compound lubricants, antistatic agents, and ultraviolet absorbers are mixed and then added to the twin-screw extruder for melting and extrusion; the processing technology of the twin-screw extruder is: a zone temperature of 210°C ~220℃, the second zone temperature is 220℃~230℃, the third zone temperature is 225℃~235℃, the fourth zone temperature is 235℃~250℃, the fifth zone temperature is 225℃~235℃, the sixth zone temperature is 215℃~225℃; stay ...

Embodiment 2

[0039] Weigh 70 parts of polycarbonate, 30 parts of AES, 3 parts of styrene-maleic anhydride copolymer, 0.5 parts of antioxidant, 1.2 parts of composite lubricant, 3 parts of antistatic agent, and 4 parts of ultraviolet absorber. The polycarbonate, AES, and SMA are placed in a vacuum drying oven, and the PC pellets are dried at 100°C for 12 hours to obtain dry PC pellets; AES pellets are dried at 85°C for 8 hours to obtain dry pellets; SMA The powder was dried at 80°C for 5 hours to obtain a dry powder. The dried materials, antioxidants, compound lubricants, antistatic agents, and ultraviolet absorbers are mixed and then added to the twin-screw extruder for melting and extrusion; the processing technology of the twin-screw extruder is: a zone temperature of 210°C ~220℃, the second zone temperature is 220℃~230℃, the third zone temperature is 225℃~235℃, the fourth zone temperature is 235℃~250℃, the fifth zone temperature is 225℃~235℃, the sixth zone temperature is 215℃~225℃; stay...

Embodiment 3

[0041] Weigh 70 parts of polycarbonate, 30 parts of AES, 7 parts of styrene-maleic anhydride copolymer, 0.5 parts of antioxidant, 1.2 parts of composite lubricant, 3 parts of antistatic agent, and 4 parts of ultraviolet absorber. The polycarbonate, AES, and SMA are placed in a vacuum drying oven, and the PC pellets are dried at 100°C for 12 hours to obtain dry PC pellets; AES pellets are dried at 85°C for 8 hours to obtain dry pellets; SMA The powder was dried at 80°C for 5 hours to obtain a dry powder. The dried materials, antioxidants, compound lubricants, antistatic agents, and ultraviolet absorbers are mixed and then added to the twin-screw extruder for melting and extrusion; the processing technology of the twin-screw extruder is: a zone temperature of 210°C ~220℃, the second zone temperature is 220℃~230℃, the third zone temperature is 225℃~235℃, the fourth zone temperature is 235℃~250℃, the fifth zone temperature is 225℃~235℃, the sixth zone temperature is 215℃~225℃; stay...

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Abstract

The invention discloses a reactive compatibility modified PC / AES alloy and a preparation method thereof. The alloy contains 100 parts of polycarbonate and AES, 1-5 parts of a complex lubricant, 2-4 parts of an antistatic agent, 3-5 parts of an ultraviolet absorbent, 1-15 parts of an SMA compatibilizer and 0.1-0.5 part of an antioxidant. The prepared compatibility improved PC / AES alloy material, which is prepared by taking SMA (a styrene-maleic anhydride copolymer) as a compatibilizer, has the characteristics of small AES dispersion phase dimension and uniform dispersion, and the mechanical properties of the PC / AES alloy are improved; meanwhile, with the addition of the SMA, the defect that the mechanical properties of the material drop due to easy agglomeration of a dispersion phase when the PC / AES alloy material is processed and formed into a finished product is overcome, and the processing performance of the PC / AES alloy is improved; in addition, the reactive compatibility modified PC / AES alloy is simple and convenient in preparation process, simple in method and significant in compatibility effect, and the application scope of the PC / AES alloy is widened.

Description

Technical field [0001] The invention belongs to the field of polymer materials, and specifically relates to a reactive compatibilization modified PC / AES alloy and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an excellent engineering plastic that is both rigid and tough, but it also has large melt viscosity during processing, high notch sensitivity, inability to wear resistance, poor compatibility with other resins, and easy molded products. Shortcomings such as stress cracking restrict its application in many fields. PC / AES alloy is a kind of blend material with excellent performance. On the one hand, the addition of AES resin can effectively improve the shortcomings of poor PC processing fluidity and easy stress cracking of its products; on the other hand, because the EPDM structural unit in the AES molecular chain is copolymerized with ethylene, propylene and non-conjugated diene, Therefore, PC / AES alloy has better ozone resistance and hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L51/04C08L35/06C08K5/00C08K5/103C08K5/09C08K5/17C08K5/42C08K5/3475B29C47/92B29C48/92
CPCC08L69/00B29C48/92B29C2948/92704C08L2205/03C08L51/06C08L35/06C08K5/00C08K5/103C08K5/09C08K5/17C08K5/42C08K5/3475
Inventor 邹晓轩李胜明唐蓉文交贤敬波戴文利
Owner XIANGTAN UNIV