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A kind of pc/abs flame retardant composite material and preparation method thereof

A technology of flame retardant composite materials and flame retardants, which is applied in the field of PC/ABS flame retardant composite materials and its preparation, can solve the problems affecting the mechanical properties, thermal stability and hydrolysis resistance of polymer materials, and achieve good flame retardancy Synergistic effect, cost reduction, effect of good thermal stability

Active Publication Date: 2021-12-07
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive addition of flame retardants seriously affects the mechanical properties, thermal stability and hydrolysis resistance of polymer materials

Method used

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  • A kind of pc/abs flame retardant composite material and preparation method thereof
  • A kind of pc/abs flame retardant composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment relates to a PC / ABS flame-retardant composite material and its preparation method; its preparation specifically includes the following steps:

[0030] a. Determine the composition formula of the material:

[0031] PC (bisphenol A polycarbonate): 37 grams; ABS (acrylonitrile-butadiene-styrene block copolymer): 9 grams; BDP (bisphenol A bis(diphenyl phosphate)): 3 grams; TPP (triphenyl phosphate): 0 grams; PhS (quaternary phosphonium sulfonate compounds, : 1 g; PTFE (anti-dripping agent polytetrafluoroethylene): 0.225 g.

[0032] b. Preparation of flame retardant composite materials:

[0033] Weigh the ingredients according to the above formula; blend, banbury evenly at 205°C in an internal mixer; discharge, unload, and pelletize to prepare a flame-retardant PC / ABS engineering composite material.

[0034] c. The resulting mixture is prepared into a test strip, and compared with the pure PC / ABS alloy test strip, the following properties are determined: ...

Embodiment 2

[0048] a. Determine the composition formula of the material:

[0049] PC (bisphenol A polycarbonate): 37 grams; ABS (acrylonitrile-butadiene-styrene block copolymer): 9 grams; BDP (bisphenol A bis(diphenyl phosphate)): 0 Gram; TPP (triphenyl phosphate): 3 grams; PhS (quaternary phosphonium sulfonate compounds, : 1 g; PTFE (anti-dripping agent polytetrafluoroethylene): 0.225 g.

[0050] b. Preparation of flame retardant composite materials:

[0051] Weigh the ingredients according to the above formula; blend, banbury evenly at 210°C in an internal mixer; discharge, unload, and pelletize to prepare a flame-retardant PC / ABS engineering composite material.

[0052] c. The resulting mixture is prepared into a test strip, and compared with the pure PC / ABS alloy test strip, the following properties are determined:

[0053] Flame retardant:

[0054] UL-94 vertical combustion: V-0 (according to ASTM D 635-77, 127mm 3 ×12.7mm 3 ×3mm 3 )

[0055] Limiting oxygen index: increased...

Embodiment 3

[0066] a. Determine the composition formula of the material:

[0067] PC (bisphenol A polycarbonate): 37 grams; ABS (acrylonitrile-butadiene-styrene block copolymer): 9 grams; BDP (bisphenol A bis(diphenyl phosphate)): 3 grams; TPP (triphenyl phosphate): 0 grams; PhS (quaternary phosphonium sulfonate compounds, : 1 g; PTFE (anti-dripping agent polytetrafluoroethylene): 0.225 g.

[0068] b. Preparation of flame retardant composite materials:

[0069] Weigh the ingredients according to the above formula; blend, banbury evenly at 200°C in an internal mixer; discharge, unload, and pelletize to prepare a flame-retardant PC / ABS engineering composite material.

[0070] c. The resulting mixture is prepared into a test strip, and compared with the pure PC / ABS alloy test strip, the following properties are determined:

[0071] Flame retardant:

[0072] UL-94 vertical combustion: V-0 (according to ASTM D 635-77, 127mm 3 ×12.7mm 3 ×3mm 3 )

[0073] Limiting oxygen index: increase...

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Abstract

The invention discloses a PC / ABS flame-retardant composite material and a preparation method thereof; the material comprises: 50-80% of bisphenol A polycarbonate, acrylonitrile-butane 16-48% ene-styrene block copolymer, 0.1-6% aromatic phosphate flame retardant, 0.01-2% quaternary phosphonium sulfonate flame retardant, 0.01-2% anti-dripping agent polytetrafluoroethylene 1%. In the present invention, specific quaternary phosphonium sulfonate flame retardants and aromatic phosphate flame retardants are synergistically used in PC / ABS alloys to obtain a good flame retardant synergistic effect, and maintain good thermal stability of the material, Hydrolysis resistance and tensile properties, etc., to prepare flame-retardant composite materials with excellent properties.

Description

technical field [0001] The invention relates to the technical field of functional polymer flame-retardant engineering materials, in particular to a PC / ABS flame-retardant composite material and a preparation method thereof. Background technique [0002] With the rapid development of the national economy, the demand for new materials in the engineering field is increasing. PC / ABS alloy is a widely used engineering plastic, mainly used in automotive interior parts, business machines, communication equipment, home appliances and lighting equipment. In some fields, especially electronic and electrical equipment, the requirements for the flame retardancy of its materials are particularly stringent. In addition, in order to maintain the practicability of the material, it not only needs to meet the corresponding flame retardant requirements, but also has excellent mechanical properties, hydrolysis resistance, aging resistance, and environmental protection. [0003] At present, ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L27/18C08K5/523C08K5/50C08K5/42
CPCC08L69/00C08L2201/02C08L2201/08C08L2205/03C08L55/02C08L27/18C08K5/523C08K5/50C08K5/42
Inventor 侯世杰张勇健江平开
Owner SHANGHAI JIAO TONG UNIV
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