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Weather-resistant heat-insulating PC/PMMA composite material and preparation method thereof

A composite material and weather-resistant technology, applied in the field of PC composite materials, can solve the problems of low impact strength and heat resistance, and achieve the effects of improving thermal conductivity, high light transmittance, and improving stability and light transmittance.

Active Publication Date: 2022-04-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shortcomings of PC and PMMA limit the further application of the material. Generally, PMMA exhibits excellent light transmission and high surface hardness, but low impact strength and heat resistance.

Method used

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  • Weather-resistant heat-insulating PC/PMMA composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A PC / PMMA composite material with weather resistance and heat insulation performance, the preparation process is as follows: Weigh PC resin (60%), PMMA resin (15%), core-shell structure MBS toughening agent (1.5%), organic silicon core Shell structure toughening agent (0.5%), compatibilizer SMA (1%), compatibilizer EMA (1%), chain extender ADR-4468 (0.2%), titanate coupling agent TC-2 (3 %), antioxidant 1010 (0.12%), antioxidant 168 (0.08%), nano ATO (5%), graphene FGE (6%), boron nitride BN (6%), white oil (0.1%) ), silane polymer (0.2%), benzotriazole (0.1%), benzophenone (0.1%), carbon black (0.1%), dry, mix raw materials and additives at high speed for 20 minutes and put them into double The main feeding bin of the screw extruder, the main feeding screw speed is 25rpm, the feeding screw is fed into the main barrel of the extruder, the main machine speed is 150rpm, and the temperature of each heating section of the main barrel is controlled (from the feeding port to ...

Embodiment 2

[0047]A PC / PMMA composite material with weather resistance and heat insulation performance, the preparation process is as follows: Weigh PC resin (65%), PMMA resin (10%), core-shell structure MBS toughening agent (2%), organic silicon core Shell structure toughening agent (1%), compatibilizer SMA (2%), compatibilizer EMA (1%), chain extender ADR-4468 (0.3%), titanate coupling agent TC-2 (2 %), antioxidant 1010 (0.06%), antioxidant 168 (0.04%), nano-ATO (8%), graphene FGE (4%), boron nitride BN (4%), white oil (0.1%) ), silane polymer (0.2%), benzotriazole (0.1%), benzophenone (0.1%), carbon black (0.1%), dry, mix raw materials and additives at high speed for 20 minutes and put them into double The main feeding bin of the screw extruder, the main feeding screw speed is 25rpm, the feeding screw is fed into the main barrel of the extruder, the main machine speed is 150rpm, and the temperature of each heating section of the main barrel is controlled (from the feeding port to the e...

Embodiment 3

[0049] A PC / PMMA composite material with weather resistance and heat insulation performance, the preparation process is as follows: Weigh PC resin (65%), PMMA resin (12%), core-shell structure MBS toughening agent (1.5%), organic silicon core Shell structure toughening agent (0.5%), compatibilizer SMA (1.5%), compatibilizer EMA (1%), chain extender ADR-4468 (0.3%), titanate coupling agent TC-2 (3 %), antioxidant 1010 (0.2%), antioxidant 168 (0.1%), nano-ATO (8%), graphene FGE (2%), boron nitride BN (4%), white oil (0.1%) ), silane polymer (0.3%), benzotriazole (0.2%), benzophenone (0.2%), carbon black (0.1%), dry, mix the raw materials and additives at high speed for 20 minutes and put them into the double The main feeding bin of the screw extruder, the main feeding screw speed is 25rpm, the feeding screw is fed into the main barrel of the extruder, the main machine speed is 150rpm, and the temperature of each heating section of the main barrel is controlled (from the feeding ...

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Abstract

The invention provides a PC / PMMA (polycarbonate / polymethyl methacrylate) alloy material with weather resistance and heat insulation performance. The PC / PMMA alloy material comprises the following components: 60-80% of polycarbonate; 10% to 20% of polymethyl methacrylate; 1%-5% of a composite toughening agent; 0.5%-4% of a compound compatilizer; 0.1%-0.5% of a chain extender; 1%-6% of a coupling agent; 0.1%-0.3% of an antioxidant; 0.5%-12% of nano ATO (antimony tin oxide); 5%-20% of a heat-conducting filler; 0.05%-0.3% of a lubricant; and 0.2%-1% of an ultraviolet light absorber. According to the invention, PC, PMMA and a plurality of compound modification auxiliary agents are subjected to melt mixing through a high-volume and high-torque co-rotating twin-screw extruder to prepare the PC / PMMA alloy material suitable for high-end application fields of buildings, automobile industry, electronic and electrical appliances and the like. The material has good mechanical properties, weather resistance and heat insulation performance, has good light transmittance, and can realize green, safe, energy-saving and consumption-reducing functions in a plurality of application fields.

Description

technical field [0001] The invention belongs to the technical field of PC composite materials, and in particular relates to a weather-resistant and heat-insulating PC / PMMA composite material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) and polymethacrylate (PMMA) are two important transparent polymer materials with good comprehensive properties, both have certain compatibility, and both are widely used in home appliances, Various fields such as automobiles and electronics. However, the disadvantages of PC and PMMA limit the further application of materials. Generally, PMMA exhibits excellent light transmission and high surface hardness, but low impact strength and heat resistance. In comparison, PC has good toughness and high glass transition temperature, while PC has a low surface hardness. Through certain technical means, the characteristics of the two blends are complementary, which can improve the friction resistance, solvent resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L33/12C08L35/06C08L23/08C08L51/04C08K13/02C08K3/04C08K3/38C08K5/134C08K5/526C08K3/22C08K5/3475C08K5/07B29B9/06B29C48/40
Inventor 吴钊孔京贾凤黄伟姚卫舟
Owner CHINA PETROLEUM & CHEM CORP
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