High temperature resistant liquid crystal polymer, referred to as LCP high temperature material, is a new type of polymer with outstanding performance. Characteristics and application of LCP high temperature material 1. LCP high temperature material characteristics 1. LCP high temperature material has self-reinforcement: liquid crystal plastic that has unusually regular fibrous structure characteristics, so it is not reinforced It can reach or even exceed the mechanical strength of ordinary engineering plastics reinforced with tens of percent of glass fiber and the level of molds. . If it is reinforced with glass fiber, carbon fiber, etc., it is far more than other engineering plastics. 2. The liquid crystal polymer also has excellent thermal stability, heat resistance and chemical resistance, and it has the creep of most plastics. Features, liquid crystal materials can be ignored, and excellent wear resistance and anti-wear properties. 3. LCP high temperature material has good weather resistance, good radiation resistance, excellent flame retardancy, and can extinguish the flame without continuing to burn. Its combustion rating reaches UL94V-0 level. 4. LCP has excellent electrical insulation properties, its dielectric strength is higher than that of general engineering plastics, and its arc resistance is good. In the continuous use temperature of 200-300℃, its electrical performance will not be affected. The intermittent use temperature can reach about 316℃. 5. LCP has outstanding corrosion resistance. LCP products will not be corroded in the presence of 90% acid concentration and 50% alkali concentration. For industrial solvents, fuel oil, detergents and hot water, they will not be dissolved after contact. , It will not cause stress cracking. 2. Application of LCP high temperature material 1. Electronic and electrical is an important market for LCP: The surface assembly welding technology of electronic and electrical has high requirements for the dimensional stability and heat resistance of materials (it can be used in surface assembly technology by vapor welding and infrared welding); 2. LCP: printed circuit boards, satellite electronic components, jet engine parts, auto mechanical parts, medical aspects. 3. LCP with high filler or alloy (PSF/PBT/PA): as integrated circuit packaging material; instead of epoxy resin coil frame packaging material; as fiber optic cable joint sheath and high-strength components; instead of ceramics for chemical separation Filling material in the tower. Instead of glass fiber-reinforced polysulfone and other plastics (panels outside the spacecraft, brake systems outside the car). Three, LCP high temperature injection molding process Since the modified performance and usage levels are very different, and the processing technology is also very variable, the following ranges should be adjusted accordingly: A. Drying: 140℃-140-150℃/5-7Hr B. Injection temperature: 260-300-410℃ C. mold temperature: 100-100-240℃ Lemo company is good at providing design and manufacure for Injection molding parts, pls check our website for more detials: www.ptjmachining.com
Previous: What is the difference between the two processing methods of rapid prototypingNext: mold manufacturing market is becoming more international in China
Link to this article：High temperature material LCP injection molding process
Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting:Mold Wiki，Thanks！^^