Low-temperature-resistant flame-retardant PC (polycarbonate) composite material and preparation method thereof

A composite material and low temperature resistant technology, applied in the field of low temperature resistant flame retardant PC composite materials and their preparation, can solve the problems of notched impact, poor low temperature toughness, poor flame retardancy, poor processing performance, etc., and achieve excellent low temperature impact resistance. Toughness and flame retardancy, effect of improving PC notch sensitivity

Inactive Publication Date: 2015-06-24
QINGDAO WANLI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PC also has some defects, such as: poor processing performance, easy stress cracking, poor notched impact and low temperature toughness, poor wear resistance, poor flame retardancy, etc., which limit its application range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A low-temperature flame-retardant PC composite material whose components are proportioned by mass percentage: PC resin 80%, POE-g-MAH 8%, polysiloxane copolymer 4%, composite flame retardant 5%, stable Agent 2%, antioxidant 0.2%, pentaerythritol stearate (PETS) 0.8%. Wherein, the PC resin is a bisphenol A type aromatic polycarbonate with a weight average molecular weight of 20000-35000g / mol; the composite flame retardant is a polydimethylsiloxane resin with a mass ratio of 1:3 A compound of PDMS and bisphenol A-bis(diphenyl phosphate) flame retardant (BDP); the stabilizer is a hindered amine light stabilizer GW-944Z with a mass ratio of 1:1 and A compound of hindered amine light stabilizer GW-622; the antioxidant is a compound of hindered phenolic antioxidant 1076 and phosphite antioxidant 168 with a mass ratio of 1:1.

[0017] Preparation method: Weigh the dry PC resin and other components according to the weight ratio, add them to the high-speed mixer and stir together ...

Embodiment 2

[0019] A low-temperature flame-retardant PC composite material whose components are proportioned by mass percentage: PC resin 74%, POE-g-GMA 10%, benzyl silicone 3%, composite flame retardant 10%, stabilizer 1.5%, antioxidant 0.3%, pentaerythritol stearate (PETS) 1.2%. Wherein, the PC resin is a bisphenol A type aromatic polycarbonate with a weight average molecular weight of 20000-35000g / mol; the composite flame retardant is a polydimethylsiloxane resin with a mass ratio of 1:3 A compound of PDMS and bisphenol A-bis(diphenyl phosphate) flame retardant (BDP); the stabilizer is a hindered amine light stabilizer GW-944Z with a mass ratio of 1:1 and A compound of hindered amine light stabilizer GW-622; the antioxidant is a compound of hindered phenolic antioxidant 1076 and phosphite antioxidant 168 with a mass ratio of 1:1.

[0020] Preparation method: Weigh the dry PC resin and other components according to the weight ratio, add them to the high-speed mixer and stir together for 5...

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PUM

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Abstract

The invention discloses a low-temperature-resistant flame-retardant PC (polycarbonate) composite material and a preparation method thereof. The low-temperature-resistant flame-retardant PC composite material is composed of the following components in percentage by mass: 70-85% of PC resin, 5-10% of polyolefin elastomer graft, 2-5% of low temperature resistance modifier, 5-10% of composite flame retardant, 1-3% of stabilizer, 0.1-0.5% of antioxidant and 0.1-1.5% of dispersing agent. Compared with the prior art, the PC composite material disclosed by the invention has the advantages of excellent low-temperature impact toughness, excellent flame retardancy, higher PC notch sensitivity, higher chemical resistance, higher boiling water resistance and the like. The flame retardancy can satisfy the requirements of Grade UL94V-0, no halogen and environmental protection. The PC composite material can be widely used in the fields of automobiles, electronic and electric appliances, illumination, physical equipment and the like. The production technique disclosed by the invention is simple, and has wide application and industrialization prospects.

Description

Technical field [0001] The invention relates to the technical field of polymer materials, in particular to a low-temperature-resistant flame-retardant PC composite material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an important engineering plastic with excellent comprehensive performance and a wide range of uses. It is widely used in automobiles, electronic and electrical, building materials, mechanical parts, office automation equipment, packaging, sports equipment, medical care, health care, optical disks, and Household goods and other fields. However, PC also has some defects, such as poor processing performance, easy stress cracking, poor notch impact and low temperature toughness, poor wear resistance, and poor flame retardancy, which limit its application range. The purpose of improving performance and expanding the scope of application can be achieved by blending and modifying PC. Summary of the invention [0003] The purpose of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L83/04C08K5/00C08K5/523C08K5/18C08K5/134C08K5/526B29B9/06
CPCC08L69/00B29B9/06C08L2201/02C08L2201/22C08L2205/025C08L2205/035
Inventor 不公告发明人
Owner QINGDAO WANLI TECH
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