Flame retardant abs composite material and its preparation process

Abstract

The invention discloses a flame-retardant ABS composite material. The component formula is improved, and a porous glass microbead flame-retardant unit is added to the ABS resin. Coated with ionic liquid, compounded with talc powder, acid-base montmorillonite and phosphate flame retardant to form an insulating carbon layer to block the transmission of oxygen and heat during flame retardancy, and use ionic liquid with talc powder, montmorillonite, etc. The formation of an insulating carbon layer interrupts combustion and synergistically improves the flame retardant performance, and the multi-in-one structure helps to improve the uniformity of dispersion of the flame retardant unit in the material, and discloses a preparation method of the flame retardant ABS composite material.

Description

technical field [0001] The invention relates to the technical field of preparation of composite materials for vehicles, in particular to a flame-retardant ABS composite material and a preparation process thereof. Background technique [0002] ABS resin has excellent impact resistance, heat resistance, low temperature resistance, chemical resistance and electrical properties. In addition, the processing performance and product size are stable, and it is convenient to spray metal on the surface, electroplating, welding, hot pressing, etc. Processing, widely used in automobiles, home appliances, electronic appliances, instrumentation and other fields. [0003] In the field of automotive applications, most of them are interior and exterior trim parts, such as lampshades, front bumpers, air intake grilles, anti-scratch strips, hub covers, etc. The disadvantage is that the flame retardancy of ABS resin itself is very low, which cannot be used in vehicles. Requirements, in this re...

AI Technical Summary

Problems solved by technology

[0003] In the field of automotive applications, most of them are interior and exterior trim parts, such as lampshades, front bumpers, air intake grilles, anti-scratch strips, hub covers, etc. The disadvantage is that the flame retardancy of ABS resin itself is very low, which cannot be used in vehicles. Requirements, in this regard, various companies and researchers in the market continue to improve it. The common method is to add flame retardants. The commonly used flame retardants are halogen-containing flame retardants, such as polybrominated diphenyl ethers. Such flame retardants may be easily imported into the environment or If it enters the human body, its residue and toxicity will have a serious impact on the environment and the human body, and such flame retardants are also prone to generate toxic or carcinogenic substances when burned

[0004] Based on this, the use of such flame retardants has been completely banned in some areas, and low-toxic halogen-containing or halogen-free flame retardants have begun to be used on a large scale. For example, Patent Document 1 discloses an environmentally friendly flame-retardant ABS material, which incorporates organic Flame retardants, inorganic flame retardants, etc. improve the flame retardant performance. Among them, the amount of flame retardants added is large, and there are uneven dispersion in the ABS molding process, which affects other properties of the material.

Or in some schemes, a variety of flame retardants are used in combination to improve the flame retardant performance, but the disadvantage is also that the addition of a large amount of flame retardants can easily affect other properties of ABS

Or add new flame retardants such as ionic liquids to ABS materials. There are very few studies on this aspect. The disadvantage is that the cost of ionic liquids is high. For this, our company intends to find new solutions to improve the flame retardant properties of ABS materials.

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