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Halogen-free flame-retardant antistatic PC/PBT alloy material

A technology of flame retardant and antistatic alloy materials, which is applied in the field of halogen-free flame retardant and antistatic PC/PBT alloy materials, can solve the problems of poor compatibility of PC/PBT alloys, low notched impact strength, and limited application range, etc., reaching Easy to popularize and apply, good antistatic property, simple preparation process

Inactive Publication Date: 2015-08-26
QINGDAO TONGCHUANG ENERGY SAVING ENVIRONMENTAL PROTECTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unmodified PC / PBT alloy has the problems of poor compatibility, low notched impact strength, poor flame retardancy, and insufficient antistatic property, which will greatly limit its application range.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A halogen-free flame-retardant antistatic PC / PBT alloy material, the composition of which is: PC 42%, PBT 20%, AS-g-GMA 3%, modified calcium carbonate 10%, halogen-free resistor Fuel agent 12%, maleic anhydride grafted ethylene-octene copolymer 10%, polyethylene glycol alkyl ether 2%, triphenyl phosphite 0.5%, antioxidant 1010 0.1%, pentaerythritol stearate 0.4 %, the weight-average molecular weight of the PC is 20000-40000g / mol, and the modified calcium carbonate is heavy calcium carbonate nanoparticles whose surface is treated with an aluminum-titanium composite coupling agent and whose particle size is 10-80nm. The halogen-free flame retardant is a compound composed of polyphenylsulfone diphenylphosphonate, polydimethylsiloxane and polytetrafluoroethylene with a mass ratio of 5:4:1.

[0022] Preparation method: (1), dry PC at 110°C-130°C for 3-4 hours in a blast dryer, and dry PBT at 130°C-150°C for 3-4 hours, and set aside; (2), Add the dry PBT weighed according to...

Embodiment 2

[0024] A halogen-free flame-retardant antistatic PC / PBT alloy material, the composition of which is: PC 45%, PBT 25%, AS-g-GMA 5%, modified calcium carbonate 10%, halogen-free resistor Fuel agent 8%, maleic anhydride grafted ethylene-octene copolymer 5%, glycerol monostearate 1%, triphenyl phosphite 0.3%, antioxidant 1010 and antioxidant 168 0.2% pentaerythritol stearate, 0.5% pentaerythritol stearate, the weight-average molecular weight of the PC is 20000-40000g / mol, the modified calcium carbonate is surface treated with an aluminum-titanium composite coupling agent, and the particle size is 10-80nm The heavy calcium carbonate nanoparticles, the halogen-free flame retardant is a compound composed of polyphenylsulfone diphenylphosphonate, polydimethylsiloxane and polytetrafluoroethylene with a mass ratio of 5:4:1 things.

[0025] Preparation method: (1), dry PC at 110°C-130°C for 3-4 hours in a blast dryer, and dry PBT at 130°C-150°C for 3-4 hours, and set aside; (2), Add th...

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Abstract

The invention discloses a halogen-free flame-retardant antistatic PC / PBT alloy material. The alloy material comprises the following ingredients, by weight, 30%-50% of PC, 20%-30% of PBT, 2%-5% of compatilizers, 5%-15% of modified calcium carbonate, 8%-12% of halogen free fire retardants, 5%-10% of flexibilizers, 0.5%-2% of antistatic agents, 0.1%-1% of triphenyl phosphate,.0.1%-0.5% of anti-oxidants and 0.1%-1% of lubricants. The halogen free fire retardants are a mixture of phosphorus-based flame retardant polysulfonyldiphenylene phenyl phosphonate, polydimethylsiloxane and polytetrafluoroethylene. The beneficial effects are that the alloy material has respective excellent performances of PC and PBT, the compatibility is good, the shock resistance is excellent, the flame retardancy is high, the antistatic performance is good, the preparation technology is simple, and popularization and application are easy.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant and antistatic PC / PBT alloy material. Background technique [0002] PC / PBT (polycarbonate / polybutylene terephthalate) alloy material has the characteristics of small warpage denaturation, good dimensional stability, good fluidity, small linear thermal expansion coefficient, and excellent resistance to chemical solvents. It is an industrial It is an alloy plastic with high application value in the world, which can be used to make bumpers, car door handles, car body side panels, electrical and electronic equipment components, etc. However, the unmodified PC / PBT alloy has the problems of poor compatibility, low notched impact strength, poor flame retardancy, and insufficient antistatic property, which will greatly limit its application range. Contents of the invention [0003] The object of the present invention is to provide a halogen-fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L51/00C08L51/06C08L85/02C08L83/04C08L27/18C08K13/06C08K9/04C08K3/26C08K5/17C08K5/06C08K5/10C08K5/103
CPCC08L69/00C08K2201/011C08K2201/014C08K2201/017C08L2201/02C08L2201/04C08L2201/22C08L2205/02C08L2205/035
Inventor 不公告发明人
Owner QINGDAO TONGCHUANG ENERGY SAVING ENVIRONMENTAL PROTECTION ENG