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Halogen-free fire retardant PC/ABS alloy

An alloy and flame retardant technology, applied in the field of halogen-free flame retardant PC/ABS alloy, to achieve the effects of excellent mechanical properties, high flow properties, and low-cost control

Active Publication Date: 2011-04-20
SUZHOU MITAC PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the most representative phosphorus-based flame retardant among halogen-free flame retardants, its thermal stability, compatibility with polymers, exudation, processing type and some key properties of flame retardant substrates There are many problems

Method used

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  • Halogen-free fire retardant PC/ABS alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 45 parts of PC1, 27 parts of PC2 and 12 parts of ABS into the mixer at 60~100r / min, then add 3 parts of additives (mixture of MBS, PTFE, EBS) into the high-speed mixer at 50°C Mix at ~65°C for 10 minutes, then melt-extrude and granulate on a twin-screw extruder. Among them, the temperature of the six intervals of the extruder is respectively: the first interval is 220-235°C, the second interval is 230-235°C, the third, fourth, and fifth intervals are 240-245°C, and the sixth interval is 225-235°C. The feeding speed of the extruder is 24Hz, the speed of the main engine is 350Hz, and the output is 200kg / h. The liquid flame retardant is metered and added with a liquid metering pump, and the metered feeding amount is 20kg / h.

Embodiment 2

[0024] Add 50 parts of PC1, 21 parts of PC2 and 10 parts of ABS into the mixer at 60~100r / min, then add 5 parts of additives (mixture of MBS, PTFE, EBS) into the high-speed mixer at 50°C Mix at ~65°C for 10 minutes, then melt-extrude and granulate on a twin-screw extruder. Among them, the temperature of the six intervals of the extruder is respectively: the first interval is 220-235°C, the second interval is 230-235°C, the third, fourth, and fifth intervals are 240-245°C, and the sixth interval is 225-235°C. The feeding speed of the extruder is 24Hz, the speed of the main engine is 350Hz, and the output is 200kg / h. The liquid flame retardant is metered and added with a liquid metering pump, and the metered feeding amount is 28kg / h.

Embodiment 3

[0026] Add 55 parts of PC1, 11 parts of PC2 and 15 parts of ABS into the mixer at 60~100r / min, then add 4 parts of additives (mixture of MBS, PTFE, EBS) into the high-speed mixer at 50°C Mix at ~65°C for 10 minutes, then melt-extrude and granulate on a twin-screw extruder. Among them, the temperature of the six intervals of the extruder is respectively: the first interval is 220-235°C, the second interval is 230-235°C, the third, fourth, and fifth intervals are 240-245°C, and the sixth interval is 225-235°C. The feeding speed of the extruder is 24Hz, the speed of the main engine is 350Hz, and the output is 200kg / h. The liquid flame retardant is metered and added with a liquid metering pump, and the metered feeding amount is 30kg / h.

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Abstract

The invention discloses a halogen-free fire retardant polycarbonate / acrylonitrile butadiene styrene (PC / ABS) alloy. The alloy mainly comprises the following components in part by mass: 45 to 55 parts of PC 1, 27 to 11 parts of PC 2, 12 to 15 parts of ABS, 11 to 27 parts of toughening agent, 10 to 14 parts of non-halogen aromatic organophosphorus flame retardant, 0.3 to 0.6 part of fluorine resin, and 0.2 to 0.6 part of lubricating agent. The non-halogen aromatic organophosphorus flame retardant fire retardant PC / ABS alloy material does not contain halogen, generates less smoke and is non-corrosive and environmentally-friendly, has high flame retardant efficiency, maintains excellent mechanical property and high flow property of the material and low cost control, and can be widely used for manufacturing electrical equipment components.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a halogen-free flame-retardant PC / ABS alloy. Background technique [0002] PC / ABS alloy materials are widely used in the fields of mechanical parts and instruments, automobiles, electronic appliances, instruments, lighting equipment, national defense and military industry. Since both PC and ABS are flammable materials, they generate a lot of heat when burned, are prone to flame dripping, and are easy to spread flames, which limits their application in electrical and electronic, transportation, office automation and other flame-retardant products. [0003] At present, most of the flame retardants used in domestic PC / ABS alloy materials are halogen flame retardants. Halogenated flame retardants can make materials achieve good flame retardant effect, but because they release a lot of smoke when burning, they produce toxic gases, and the diffusion speed of these harmful ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L27/18C08L51/06C08K5/523
Inventor 朱付成
Owner SUZHOU MITAC PRECISION TECH