Flame-retardant thermoplastic polyester resin composition

Abstract

The invention discloses a flame-retardant thermoplastic polyester resin composition. The flame-retardant thermoplastic polyester resin composition comprises the following raw materials in parts by weight: 20-80 parts of crystalline polyester resin, 10-50 parts of non-crystalline resin, 5-30 parts of an anti-static agent, and 2-30 parts of an organic phosphorus flame retardant. The flame-retardantthermoplastic polyester resin composition is a polyester resin composition of a crystalline material, and has good low-warp. Seepage inhibition of the flame retardant is improved, so the flame-retardant thermoplastic polyester resin composition can be suitably used as a forming material of a home appliance, an electric device, an OA part and the like, and useful in the industry. The resin composition is easily endowed with high flame resistance by a phosphorus compound, and has not environmental toxicity. The flame-retardant thermoplastic polyester resin composition has excellent retention stability in a processing temperature of a wide range, and has high flame retardance, high mechanical strength, excellent electrical characteristics, less mould deposit, and excellent laser printability.Especially, viewed from good and excellent balance of these characteristics, the flame-retardant thermoplastic polyester resin composition is promising, wide in applicability, and suitable for popularization and application, and has very extensive market prospect.

Description

technical field [0001] The invention relates to a polyester resin composition, in particular to a flame-retardant thermoplastic polyester resin composition. Background technique [0002] Polyester resins, a type of resin most frequently used in containers, sheets, films, fibers, and injection molded products, most commonly use antimony oxide or antimony triacetate as a catalyst during its preparation. Antimony catalyst has excellent advantages in color, and productivity is high due to high activity during esterification (ES) and polycondensation (P.C), but due to its toxicity, control of antimony as a material harmful to human body , and thus, the development of new catalysts that are safe to the human body and environmentally friendly is widely required. In Japan, polyester resins have been produced by utilizing germanium catalysts as an alternative to such limitations. However, since the price of germanium catalysts can be ten times or higher than that of antimony cataly...

AI Technical Summary

Problems solved by technology

[0005] However, molded products of polyester resin such as used PET bottles collected from the market and polycarbonate resin such as optical discs are often deteriorated due to hydrolysis, thermal decomposition, etc.

For example, even if the material obtained by pulverizing these molded products is attempted to be remolded, it cannot be molded at all due to a significant drop in melt viscosity, or even if it can be molded, it is easily damaged due to weak mechanical strength. It is very difficult to withstand practical molded products