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Environment-friendly and flame-retardant reinforcing polycarbonate (PC) composite material and preparation method thereof

A composite material and environmental protection technology, applied in the field of environmental protection flame retardant reinforced PC composite material and its preparation, can solve the problems of poor low temperature toughness, easy stress cracking, poor processing performance, etc., and achieve strong temperature and corrosion resistance and good processability. , The effect of high flame retardant efficiency

Inactive Publication Date: 2015-03-18
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although pure PC has a certain flame retardancy with an oxygen index of 21% to 24%, but with the increasing market competition and higher requirements for flame retardancy, the flame retardancy of PC itself is insufficient. In order to adapt to product development and According to the market demand, it is necessary to modify the flame retardant of PC
In addition, pure PC also has disadvantages such as poor processing performance, easy stress cracking, notch impact and poor low temperature toughness, which limit its application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An environmentally friendly flame-retardant reinforced PC composite material, the components of which are: PC resin 72%, glass fiber 15%, compound environmentally friendly flame retardant 3%, POE-g-MAH 6%, styrene -Acrylonitrile-methacrylate hydroglyceride (SAG) 3%, hindered phenolic antioxidant 1010 and phosphite antioxidant 168 by mass 1:1 compound 0.4%, TAF lubricant 0.6% . Wherein, the PC resin is bisphenol A type aromatic polycarbonate. The glass fiber is an alkali-free chopped glass fiber with a diameter of 8-12 μm, a length of 3-6 mm, and an aspect ratio of 7-9, and its surface is treated with a silane coupling agent. The compound environmentally friendly flame retardant is a mixture of 95wt% polydimethylsiloxane (PDMS), 1wt% potassium benzenesulfonylbenzenesulfonate (KSS) and 4wt% polytetrafluoroethylene (PTFE). A uniformly prepared compound environmentally friendly flame retardant.

[0021] Preparation method: (1), dry PC resin in a blast dryer at 110°C-130°...

Embodiment 2

[0023] An environmentally friendly flame-retardant reinforced PC composite material, the components of which are: PC resin 81%, glass fiber 10%, compound environmentally friendly flame retardant 2.5%, SEBS-g-MAH 4%, styrene Graft maleic anhydride copolymer (SMA) 2%, hindered phenolic antioxidant 1010 and phosphite antioxidant 168 by mass 1:1 compound 0.2%, TAF lubricant 0.3%. Wherein, the PC resin is bisphenol A type aromatic polycarbonate. The glass fiber is an alkali-free chopped glass fiber with a diameter of 8-12 μm, a length of 3-6 mm, and an aspect ratio of 7-9, and its surface is treated with a silane coupling agent. The compound environmentally friendly flame retardant is a mixture of 95wt% polydimethylsiloxane (PDMS), 1wt% potassium benzenesulfonylbenzenesulfonate (KSS) and 4wt% polytetrafluoroethylene (PTFE). A uniformly prepared compound environmentally friendly flame retardant.

[0024] Preparation method: (1), dry PC resin in a blast dryer at 110°C-130°C for 3-4...

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Abstract

The invention discloses an environment-friendly and flame-retardant reinforcing polycarbonate (PC) composite material which consists of the following components in percentage by mass: 60-85% of PC resin, 5-20% of glass fiber, 2-6% of a compound environment-friendly fire retardant, 4-8% of a toughening agent, 2-4% of a compatilizer, 0.1-0.5% of a composite antioxidant and 0.1-1% of a lubricant. Compared with the prior art, the environment-friendly and flame-retardant reinforcing PC composite material prepared by the invention has the characteristics of being high in strength, good in tenacity, excellent in heat resistance and dimensional stability, and the like; in addition, the composite material is high in flame-retardant efficacy up to UL94V-0 flame-retardant property, and is safe and environment-friendly; the composite material is good in processing performance, strong in temperature resistance and corrosion resistance, and can be widely applied to the fields of electronics and electrical appliances, automobiles, chemical industry, medical instruments, sports goods, building materials and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an environmentally friendly flame-retardant reinforced PC composite material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is a thermoplastic engineering plastic with excellent comprehensive properties. It has outstanding impact resistance, creep resistance and dimensional stability. It can maintain high mechanical strength in a high temperature range and is non-toxic. , with excellent dielectric properties, is the engineering plastic with the fastest growth and the largest production capacity in recent years. Although pure PC has a certain flame retardancy with an oxygen index of 21% to 24%, but with the increasing market competition and higher requirements for flame retardancy, the flame retardancy of PC itself is insufficient. In order to adapt to product development and In order to meet the market demand, it is necessary to modi...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L83/04C08L27/18C08K13/06C08K9/06C08K7/14C08K5/42C08K5/134C08K5/526
CPCC08L69/00C08L2201/02C08L2205/035
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC