Primary Applications of Flame-Retardant Aluminum Hydroxide
Release Date:
2020-11-19 14:01
Flame-retardant aluminum hydroxide is one of the halogen-free flame retardants and smoke suppressants used in synthetic materials.
(1) It possesses three primary functions: flame retardancy, smoke suppression, and electrostatic control. It causes no secondary pollution during combustion. It exhibits excellent dispersibility in polymers and readily synergizes with other flame retardant additives. It can be widely used in unsaturated polymers, esters, epoxy resins, thermoplastics, synthetic rubbers, composite materials, etc.
(2) When manufacturing various high/low-voltage arc switches using unsaturated polyester injection molding, adding flame-retardant aluminum hydroxide imparts flame resistance and arc resistance to the product. High-purity aluminum hydroxide achieves whiteness exceeding 93%, exhibiting crystalline properties with a refractive index similar to polyester resin.
(3) In epoxy resins, flame-retardant aluminum hydroxide significantly enhances the oxygen index, making it suitable for sealants, castings, and epoxy glass fiber boards. Regarding electrical insulation, aluminum hydroxide improves the stress resistance and creep resistance of epoxy resins. Epoxy resins filled with aluminum hydroxide also hold broad prospects in manufacturing transformers, insulating materials, and switchgear.
(4) Adding highly charged flame-retardant aluminum hydroxide to combustible polyolefin plastic products (such as polyethylene and polypropylene) not only enhances flame retardancy but also facilitates processing of highly charged polyolefins through compounding reactions. It improves the tensile strength and impact resistance of products, making it widely applicable in conduit and equipment jackets.
(5) In rubber applications, flame-retardant aluminum hydroxide serves not only as a flame retardant but also as a reinforcing agent. It is used in foam rubber and as a rubber adhesive for carpet backing, and is also applicable to neoprene rubber. It plays a significant role in improving the leakage protection performance of silicone rubber.
(6) Flame-retardant aluminum hydroxide is extensively used in the carpet and nonwoven industries, primarily leveraging its high charge and environmental flame retardancy.
(7) Ultra-fine active specialty flame-retardant aluminum hydroxide is primarily used in the production of low-smoke, low-halogen cables, composite insulators, and copper foil laminates.
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