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High-strength high-heat-conductive modified polycarbonate master batch and preparation method thereof

A polycarbonate, high-strength technology, applied in the field of modified high-strength, high thermal conductivity polycarbonate masterbatch and its preparation, can solve the problems of heat accumulation, limit the application range, affect the service life, etc., and achieve the improvement of mechanical properties, The effect of good thermal conductivity and improved thermal conductivity

Inactive Publication Date: 2014-05-21
北京纳新天地科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polycarbonate is a widely used engineering plastic with excellent mechanical properties, heat resistance and weather resistance, etc. However, due to its general thermal conductivity, polycarbonate is prone to heat accumulation during use, which not only affects the service life, but also limits range of application

Method used

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  • High-strength high-heat-conductive modified polycarbonate master batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In parts by weight, 2 parts of graphene dry powder with a thickness of 1-2nm are placed in an electrostatic sprayer, the electrostatic output voltage is set to 10KV, the electrostatic output current is 5μA, and the powder output is controlled at 4g / min. The dry powder is sprayed on 100 parts of bisphenol A polycarbonate particles with a particle size of 10-15 mesh.

[0018] In parts by weight, the obtained graphene-modified polycarbonate particles, 5 parts of compatibilizer maleic anhydride grafted SEBS, 3 parts of toughening agent SEBS, 0.3 part of antioxidant tetrakis[β-(3,5- Di-tert-butyl-4-hydroxyphenyl propionate] pentaerythritol ester and 0.3 parts of lubricant polyethylene wax are added to the high-speed mixer and mixed evenly, and then placed in a vacuum oven to dry. The mixed material is passed through the metering pump After that, it is sent into a twin-screw extruder for melting and kneading, and finally extruded through a die for granulation.

Embodiment 2

[0020] In terms of parts by weight, place 0.5 parts of graphene dry powder with a thickness of 1 to 2 nm in an electrostatic sprayer, set the electrostatic output voltage to 15KV, the electrostatic output current to 8μA, and control the powder output at 2g / min. The dry powder is sprayed on 100 parts of polycarbonate particles with a particle size of 100 mesh.

[0021] In parts by weight, the obtained graphene-modified polycarbonate particles, 6 parts of SEBS of compatibilizer maleic anhydride grafting, 7 parts of toughening agent SEBS, 0.3 part of antioxidant tetrakis[β-(3,5- Di-tert-butyl-4-hydroxyphenyl propionate] pentaerythritol ester and 0.3 parts of lubricant polyethylene wax are added to the high-speed mixer and mixed evenly, and then placed in a vacuum oven to dry. The mixed material is passed through the metering pump After that, it is sent into a twin-screw extruder for melting and kneading, and finally extruded through a die for granulation.

Embodiment 3

[0023] In terms of parts by weight, place 0.01 part of graphene dry powder with a thickness of 1 to 2 nm in an electrostatic sprayer, set the electrostatic output voltage to 10KV, the electrostatic output current to 5μA, and control the powder output at 4g / min. The dry powder is sprayed on 100 parts of polycarbonate particles with a particle size of 80 mesh.

[0024] In parts by weight, the obtained graphene-modified polycarbonate particles, 8 parts of compatibilizer maleic anhydride grafted SEBS, 6 parts of toughening agent SEBS, 0.1 part of antioxidant tetrakis[β-(3,5- Di-tert-butyl-4-hydroxyphenylpropionate] pentaerythritol ester and 0.1 part of lubricant polyethylene wax are added to the high-speed mixer and mixed evenly, then placed in a vacuum oven to dry. The mixed material is passed through the metering pump After that, it is sent into a twin-screw extruder for melting and kneading, and finally extruded through a die for granulation.

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Abstract

The invention provides a high-strength high-heat-conductive modified polycarbonate master batch and a preparation method thereof. Graphene modified polycarbonate master batch is prepared from the following components in parts by weight: 100 parts of polycarbonate particle, 0.01-5 parts of dry grapheme powder, 5-10 parts of compatilizer, 3-10 parts of flexibilizer, 0.1-0.3 part of antioxidant and 0.1-0.3 part of lubricating agent. The preparation method comprises the steps of spraying the dry graphene powder with static electricity on the polycarbonate particles for modification, uniformly mixing the modified polycarbonate particles and the remaining components, feeding the mixture into a twin-screw extruder, melting, mixing, and then extruding and granulating through a die head. The graphene modified polycarbonate master batch has heat-conducting property improved greatly and mechanical property improved to a certain extent.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a modified high-strength, high-thermal conductivity polycarbonate masterbatch and a preparation method thereof. Background technique [0002] Polycarbonate is a widely used engineering plastic with excellent mechanical properties, heat resistance and weather resistance, etc. However, due to its general thermal conductivity, polycarbonate is prone to heat accumulation during use, which not only affects the service life, but also limits its scope of application. Therefore, it is necessary to develop a modified polycarbonate composition to overcome the aforementioned performance defects. Contents of the invention [0003] The object of the present invention is to provide a modified polycarbonate masterbatch with high strength and high thermal conductivity and a preparation method thereof. [0004] A modified high-strength, high-thermal conductivity polycarb...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08K9/00C08K3/04C08J3/22
Inventor 王云峰李晓斐
Owner 北京纳新天地科技发展有限公司
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