Non-halogen flame-retarding reinforced PBT plastic

Abstract

The invention discloses a halogen-free flame retardant reinforced PBT plastic, which contains the components with the following weight percentage: 37 to 47 percent of valox, 0.3 to 0.8 percent of y-(2, 3 Epoxypropoxy) propyl trimethoxy silicane, 10 to 15 percent of oligomeric resorcinol (diphenylphosphate), 10 to 15 percent of melamine pyrophosphate, 2 to 5 percent of ethylene-methyl acrylate-glycidyl methacrylate copolymer, 0.2 to 0.5 percent of 4-[3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid-Pentaerythritol ester, and 28 to 32 percent of glass fiber. The invention adopts the combination of flame retardant melamine pyrophosphate and halogen-free flame retardant oligomeric resorcinol (diphenylphosphate), and has the good mechanical properties and the flame retardant properties of the halogen-free flame retardant oligomeric resorcinol (diphenylphosphate). The halogen-free flame retardant reinforced PBT plastic prepared with the method has the advantages of high elongation at break, good mechanical properties, no halogen, environment protection, good electrical properties, low corrosive gas, low smoke density, etc, and can be stained.

Description

technical field [0001] The invention relates to a flame-retardant reinforced PBT plastic, in particular to a halogen-free flame-retardant reinforced PBT plastic that does not contain a halogen flame retardant and is used in industries such as motor fans, connectors, lighting, and relays. Background technique [0002] Traditional flame retardant reinforced PBT plastics are usually compounded with brominated flame retardants and antimony trioxide, because brominated flame retardants will produce a large amount of bromine-containing toxic and harmful gases during combustion, which will bring harm to human health. Great harm. Due to people's increasing attention to environmental pollution and safety factors, the traditional use of brominated flame retardants to prepare flame-retardant reinforced PBT plastics is facing challenges. Apple has announced that it will switch to halogen-free materials on July 1, 2007. HP, SONY and other companies have also introduced similar regulatio...

AI Technical Summary

Problems solved by technology

Therefore, people are focusing on the development of halogen-free flame-retardant reinforced PBT plastics. Currently, the halogen-free flame retardants used include red phosphorus and inorganic flame retardants (such as aluminum hydroxide, magnesium hydroxide), etc., and red phosphorus is used as flame retardants. Halogen-free flame-retardant reinforced PBT plastics are not easy to color (can only be used for dark-colored products), and their mechanical properties are poor. Inorganic flame-retardant reinforced PBT plastics must use a large amount of inorganic flame retardants to be effective, thus seriously destroying the mechanical properties of the product