Flame retardation PC/PBT alloy and preparation method therefor

A flame retardant and alloy technology, applied in the field of flame retardant PC/PBT alloy and its preparation, can solve the problems of poor flame retardancy, limited application range, low notched impact strength, etc., achieve good flame retardant performance, and is suitable for promotion Application, the effect of excellent mechanical properties

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

[0002] PC / PBT alloy (polycarbonate / butylene terephthalate) has high heat resistance, good impact performance and chemical resistance, etc. It is an engineering plastic with high industrial application value. However, PC / PBT alloy materials have the problems of low notched impact strength and poor flame retardancy, which will greatly limit its application range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A flame-retardant PC / PBT alloy whose components are proportioned by mass percentage: PC 53%, PBT 20%, modified filler 15%, glycidyl methacrylate grafted ethylene-octene copolymer 8% , Potassium perfluorobutyl sulfonate 0.1%, triphenyl phosphite 1%, ethylene-maleic anhydride-glycidyl methacrylate terpolymer 2%, antioxidant 0.2%, pentaerythritol stearate 0.7 %, the weight average molecular weight of the PC is 20000-35000g / mol, and the modified filler is a mixture of heavy calcium carbonate, acicular wollastonite and precipitated barium sulfate with a mass ratio of 2:1:1. For the composite filler activated by the composite coupling agent, the particle size of the heavy calcium carbonate is less than 5 μm, the particle size of the acicular wollastonite is between 5-20 μm, and the particle size of the precipitated barium sulfate is 0.5- 1 μm, the antioxidant is a compound of hindered phenolic antioxidant 1010 and phosphite antioxidant 168 with a mass ratio of 1:1.

[0022] Pre...

Embodiment 2

[0024] A flame-retardant PC / PBT alloy whose components are proportioned by mass percentage: PC 52%, PBT 30%, modified filler 10%, glycidyl methacrylate grafted ethylene-octene copolymer 5% , Potassium diphenylsulfone sulfonate 0.1%, triphenyl phosphite 0.3%, ethylene-maleic anhydride-glycidyl methacrylate terpolymer 2%, antioxidant 0.1%, pentaerythritol stearate 0.5%, the weight-average molecular weight of the PC is 20000-35000g / mol, and the modified filler is a mixture of heavy calcium carbonate, acicular wollastonite and precipitated barium sulfate with a mass ratio of 2:1:1. For the composite filler activated by the titanium composite coupling agent, the particle size of the heavy calcium carbonate is less than 5 μm, the particle size of the acicular wollastonite is between 5 and 20 μm, and the particle size of the precipitated barium sulfate is 0.5 ~1 μm, the antioxidant is a compound of hindered phenolic antioxidant 1010 and phosphite antioxidant 168 with a mass ratio of 1...

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PUM

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Abstract

The invention discloses a flame retardation PC / PBT alloy and a preparation method therefor. The flame retardation PC / PBT alloy comprises the following ingredients, by weight, 40%-60% of PC, 20%-30% of PBT, 5%-15% of modified filling materials, 3%-8% of flexibilizers, 0.1%-1% of flame retardant, 0.1%-1% of triphenyl phosphate, 0.5%-2% of compatilizers, 0.1%-0.5% anti-oxidants and 0.1 %-1% of lubricants. The flame retardant is one selected from potassium perfluorobutanesulfonate, potassium dibenzyl sulfonyl sulfonate and potassium trifluoromethyl sulfamide. The beneficial effects are that the flame retardation PC / PBT alloy has excellent mechanical properties and processing performances, the intensity is high, the impact resistance is high, the cost is low, the flame retardation performance is good, and the flame retardation PC / PBT alloy is suitable for popularization and application.

Description

Technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant PC / PBT alloy and a preparation method thereof. Background technique [0002] PC / PBT alloy (polycarbonate / butylene terephthalate) has high heat resistance, good impact performance and chemical resistance. It is an engineering plastic with high industrial application value. However, PC / PBT alloy materials have the problems of low notched impact strength and poor flame retardancy, which will greatly limit the scope of their applications. Summary of the invention [0003] The purpose of the present invention is to provide a flame-retardant PC / PBT alloy with good impact resistance and a preparation method thereof. [0004] The technical solution adopted by the present invention to solve its technical problems is: flame-retardant PC / PBT alloy, whose components are proportioned by mass percentage: PC 40%-60%, PBT 20%-30%, modified filler 5% ~15%, toughening agent 3...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L51/06C08K13/06C08K9/04C08K7/10C08K3/26C08K3/30C08K5/42C08K5/435
CPCC08L69/00C08K2201/003C08L2201/02C08L2205/035
Inventor 不公告发明人
Owner QINGDAO TONGCHUANG ENERGY SAVING ENVIRONMENTAL PROTECTION ENG
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