CN105440564A

CN105440564A - Halogen-free and flame-retardant ABS (acrylonitrile butadiene styrene) composite and preparation method thereof

Info

Publication number: CN105440564A
Application number: CN201511007330.4A
Authority: CN
Inventors: 吕亮; 陈剑君; 王玉林
Original assignee: Quzhou University
Current assignee: Quzhou University
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2016-03-30
Anticipated expiration: 2035-12-30
Also published as: CN105440564B

Abstract

The invention discloses halogen-free and flame-retardant ABS (acrylonitrile butadiene styrene) composite and a preparation method thereof. The halogen-free and flame-retardant ABS composite comprises components in percentage by mass as follows: 40%-70% of ABS resin, 20%-40% of a compound flame retardant, 10%-20% of a synergistic polymer, 0.5%-1% of an antioxidant and 1%-3% of a lubricant. The components are mixed uniformly in the proportion, the mixture is added to a double-screw extruder, the barrel temperature of the double-screw extruder is controlled to range from 185 DEG C to 270 DEG C, the mixture is extruded and pelletized, and the special halogen-free and flame-retardant ABS composite is prepared. The halogen-free and flame-retardant ABS composite has the advantages of good flame retardancy, excellent mechanical performance, non-toxicity, non-pollution and the like.

Description

A kind of halogen-free flame-retardant ABS composite material and preparation method thereof

Technical field

The present invention relates to a kind of flame-proofed polymer material, belong to field of high polymer material modification, specifically a kind of halogen-free flame-retardant ABS composite material and preparation method thereof.

Background technology

ABS resin (acrylonitrile-butadiene-styrene copolymer) is that a kind of intensity is high, good toughness, be easy to the thermoplastic macromolecule material of machine-shaping, is widely used in the field such as electronic apparatus, automobile.But ABS resin oxygen index is about 18, easily causes burning and cause fire.Along with the expanding day of its range of application, requirements at the higher level are proposed to the flame retardant properties of ABS.At present, the compound of flame-proof ABS fire retardant used many employings polybromodiphenyl ether and ANTIMONY TRIOXIDE SB 203 99.8 PCT is produced.But bromide fire retardant can produce carcinogens contaminate environment and the harm personal security such as poisonous, obnoxious flavour in a large number in combustion.Therefore, European Union has promulgated " RoHS instruction ", and the content defining Polybrominated biphenyl and Poly Brominated Diphenyl Ethers in flame retardant plastics is no more than 1000PPM.

Summary of the invention

The object of the invention is to provide a kind of halogen-free flame-retardant ABS composite material, fire retardant nontoxic pollution-free used.The requirement to flame retardant properties and mechanical property in materials'use process can be met simultaneously.Propose by adopting compound flame retardant, melt blending prepares the method for the halogen-free flame retardant ABS mixture of good dispersity.

For solving the problems of the technologies described above, the technical solution used in the present invention is, a kind of halogen-free flame-retardant ABS compound material is provided, be made up of the component of following mass percent: ABS resin 40%-70%, compound flame retardant 20-40%, synergy polymkeric substance 10-20%, oxidation inhibitor 0.5%-1%, lubricant 1-3%.

Compound flame retardant of the present invention is the Delamination hydrotalcite of 2:1:1:1, organic-silicon-modified hydrotalcite, borate intercalation hydrotalcite and ammonium polyphosphate is composite forms by mass ratio.

Synergy polymkeric substance of the present invention is PVC, PC or PA.

In ABS resin of the present invention, A:B:S is 20:30:50.

In ABS resin of the present invention, lubricant is the PTFE micro mist of 1-3%.

The preparation method of described halogen-free flame-retardant ABS compound material is completed by following steps:

(1) each component is taken according to weight percent;

(2) each component is carried out in high-speed mixer fully mixing 20 minutes;

(3) then the material mixed is added twin screw extruder, regulate twin screw extruder temperature to be 185-270 DEG C, described mixture mixes to extrude and obtains described halogen-free flame-retardant ABS composite material in twin screw extruder.

Halogen-free flame-retardant ABS composite material tool of the present invention has the following advantages:

(1) halogen-free flame-retardant ABS composite material of the present invention uses compound flame redundant, greatly improves the flame retardant properties of ABS;

(2) halogen-free flame-retardant ABS composite material of the present invention is not containing halogenated flame retardant and poisonous metal oxide, has asepsis environment-protecting characteristic.

Embodiment

Embodiment 1

A kind of halogen-free flame-retardant ABS composite material of the present embodiment, is made up of the component of following mass percent: ABS resin 65%, compound flame retardant 20%, synergy polymkeric substance 13%, oxidation inhibitor 1%, lubricant 1%.

Above-mentioned matrix material is prepared from by following steps:

(1) each component is taken according to weight percent;

(2) each component is fully mixed in high-speed mixer;

(3) extruded in twin screw extruder by the material mixed, temperature is 230 DEG C, and rotating speed controls at 90 turns/min.

Embodiment 2

A kind of halogen-free flame-retardant ABS composite material of the present embodiment, is made up of the component of following mass percent: ABS resin 68%, compound flame retardant 20%, synergy polymkeric substance 10%, oxidation inhibitor 1%, lubricant 1%.

Above-mentioned matrix material is prepared from by following steps:

(1) each component is taken according to weight percent;

(2) each component is fully mixed in high-speed mixer;

(3) extruded in twin screw extruder by the material mixed, temperature is 185 DEG C, and rotating speed controls at 90 turns/min.

Embodiment 3

A kind of halogen-free flame-retardant ABS composite material of the present embodiment, is made up of the component of following mass percent: ABS resin 60%, compound flame retardant 25%, synergy polymkeric substance 12%, oxidation inhibitor 1%, lubricant 2%.

Above-mentioned matrix material is prepared from by following steps:

(1) each component is taken according to weight percent;

(2) each component is fully mixed in high-speed mixer;

(3) extruded in twin screw extruder by the material mixed, temperature is 230 DEG C, and rotating speed controls at 120 turns/min.

Embodiment 4

A kind of halogen-free flame-retardant ABS composite material of the present embodiment, is made up of the component of following mass percent: ABS resin 50%, compound flame retardant 29%, synergy polymkeric substance 18%, oxidation inhibitor 1%, lubricant 2%.

Above-mentioned matrix material is prepared from by following steps:

(1) each component is taken according to weight percent;

(2) each component is fully mixed in high-speed mixer;

Embodiment 5

A kind of halogen-free flame-retardant ABS composite material of the present embodiment, is made up of the component of following mass percent: ABS resin 45%, compound flame retardant 32%, synergy polymkeric substance 20%, oxidation inhibitor 0.5%, lubricant 2.5%.

Above-mentioned matrix material is prepared from by following steps:

(1) each component is taken according to weight percent;

(2) each component is fully mixed in high-speed mixer;

(3) extruded in twin screw extruder by the material mixed, temperature is 250 DEG C, and rotating speed controls at 120 turns/min.

Carry out performance test to the fire retardant material obtained by above embodiment, concrete outcome is in table 1.

The performance test of table 1 embodiment gained halogen-free flame-retardant ABS composite material

Test item	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4	Embodiment 5
						Tensile strength (Mpa)	37	38	35	32	30
Izod notched impact strength (kJ/m ²）	11.6	11.3	10.9	10.3	10.1
						Combustionproperty	FV-0	FV-0	FV-0	FV-0	FV-0
Heat decomposition temperature (DEG C)	268	270	279	287	298

By testing above and can seeing, the halogen-free flame-retardant ABS compound material obtained by the present invention has good flame retardant properties, and keeps good mechanical property.

Claims

1. a halogen-free flame-retardant ABS composite material, it is characterized in that described halogen-free flame-retardant ABS compound material is made up of the component of following mass percent: ABS resin 40%-70%, compound flame retardant 20-40%, synergy polymkeric substance 10-20%, oxidation inhibitor 0.5%-1%, lubricant 1-3%; Described compound flame retardant is the Delamination hydrotalcite of 2:1:1:1, organic-silicon-modified hydrotalcite, borate intercalation hydrotalcite and ammonium polyphosphate is composite forms by mass ratio; Described synergy polymkeric substance is PVC, PC or PA.

2. halogen-free flame-retardant ABS composite material according to claim 1, is characterized in that, in described ABS resin, A:B:S is 20:30:50.

3. halogen-free flame-retardant ABS composite material according to claim 1, is characterized in that, with the addition of mass percent is that the PTFE micro mist of 1-3% is as lubricant.

4. halogen-free flame-retardant ABS composite material according to claim 3, is characterized in that, the median size of the PTFE micro mist added is 1-5 μm.

5. the preparation method of the halogen-free flame-retardant ABS composite material described in above-mentioned any claim, is characterized in that, be prepared by following steps:

(1) each component is taken according to weight percent;

(2) each component is carried out in high-speed mixer fully mixing 20 minutes;