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Solid condensation-type organic phosphate flame-retardant PBT/ABS alloy material and preparation method thereof

A solid polycondensation, alloy material technology, applied in the field of solid polycondensation type phosphate flame retardant PBT/ABS alloy material and its preparation field, can solve the problems of high cost, flow performance, surface brightness mechanical properties, poor flame retardancy, etc. Low, good flame retardancy, bright surface effect

Active Publication Date: 2012-07-18
威海联桥新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the flow properties, surface brightness, mechanical properties and flame retardancy of the above two alloy materials are poor, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Production of flame retardant masterbatch

[0020] Pour 30kg of CBT resin, 69kg of solid polycondensation type phosphate flame retardant, 0.2kg of phenolic antioxidant and 0.8kg of phosphite or thioester antioxidant into a high-speed mixer, mix at low speed for 120 seconds, and then mix at high speed Mix for 60 seconds. The mixed raw materials are fed into a twin-screw extruder for forced feeding, blending and extruding. The blending processing temperature is 180-200°C, the screw speed is 250-350r / min, the product is thermally cut into pellets, air-dried and cooled, and packed for later use. CBT resin is a cyclic macromolecular oligomer polyester polymer. Its unique composition and low melt viscosity make it an ideal base resin for concentrated masterbatches, and it is compatible with amorphous, semi-crystalline and crystalline resins to improve fluidity . Solid polycondensation type phosphate flame retardant has good flame retardant effect, which overcomes the pr...

Embodiment 2

[0025] 1) Production of flame retardant masterbatch

[0026] Pour 25kg of CBT resin, 74kg of solid polycondensation type phosphate flame retardant, 0.1kg of phenolic antioxidant and 0.9kg of phosphite or thioester antioxidant into a high-speed mixer, mix at low speed for 120 seconds, and then mix at high speed Mix for 60 seconds. The mixed raw materials are fed into a twin-screw extruder for forced feeding, blending and extruding. The blending processing temperature is 180-200°C, the screw speed is 250-350r / min, the product is thermally cut into pellets, air-dried and cooled, and packed for later use.

[0027] 2) PBT / ABS alloy production

[0028] 50kg of polybutylene terephthalate (PBT) was dried at 120°C for 4 hours; 10kg of acrylonitrile-butadiene-styrene copolymer (ABS) was dried at 80°C for 4 hours. Pour the dried polybutylene terephthalate (PBT), acrylonitrile-butadiene-styrene copolymer (ABS) and 30kg of flame retardant masterbatch into a high-speed mixer and stir at ...

Embodiment 3

[0030]The present invention can also be realized by the percentage by weight shown in the following examples, and its preparation method is identical with the foregoing examples:

[0031] 1) Flame retardant masterbatch

[0032] CBT resin 19, solid polycondensation type phosphate flame retardant 80, phenolic antioxidant 0.4, phosphite or thioester antioxidant 0.6. Phenolic antioxidants: such as β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, etc. Phosphite or thioester antioxidants: such as tris(2,4-di-tert-butylphenyl) phosphite, dilauryl thiodipropionate, etc.

[0033] 2) PBT / ABS alloy material

[0034] Polybutylene terephthalate 35, acrylonitrile-butadiene-styrene copolymer 15, the aforementioned flame retardant masterbatch 40, melamine nitrogen flame retardant 8, toughening compatibilizer 1, polytetrafluoroethylene 0.4, lubricant 0.6. Toughening compatibilizer: it is a graft compound containing acrylate functional groups, such as ethylene grafted acrylate, f...

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PUM

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Abstract

The invention relates to the filed of organic polymers, in particular to a solid condensation-type organic phosphate flame-retardant PBT / ABS alloy material and a preparation method thereof. The preparation method comprises the following steps: mixing 19-30 CBT resin, 69-80 solid condensation-type organic phosphate flame retardant, 0.1-0.5 phenolic antioxidant and 0.1-1 phosphate or thio-ester antioxidant in percentage by weight to prepare a flame-retardant master batch; and pouring 35-50 PBT, 8-15 ABS multipolymer and 30-40 flame-retardant master batch lubricant in percentage by weight to a high-speed mixer while adding 8-15 melamine nitrogenated flame retardant, 1-5 toughening compatibilizer, 0.2-1 polyfluortetraethylene and 0.2-0.6 lubricant in percentage by weight.

Description

technical field [0001] The invention relates to the field of organic polymer materials, in particular to a solid polycondensation type phosphate flame-retardant PBT / ABS alloy material and a preparation method thereof. Background technique [0002] We know that the flame-retardant polybutylene terephthalate (PBT) / acrylonitrile-butadiene-styrene copolymer (ABS) alloy is an important engineering plastic alloy. This material has excellent formability, Dimensional stability, good low temperature impact resistance and chemical resistance. Compared with PBT, it improves the low-temperature impact resistance of the product, and compared with ABS, it improves heat resistance and weather resistance, and can be better used in automobiles, electronics, electrical appliances and other industries that have flame retardant performance requirements. In recent years, the development of halogen-free flame retardants and halogen-free flame-retardant materials has been rapid. A series of alloy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L55/02C08L67/00C08L27/18C08K5/00C08K5/521C08K5/3492C08K5/20
Inventor 兰浩王保续
Owner 威海联桥新材料科技股份有限公司
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