1. Characteristics
a. LCP has self reinforcing properties: it has an abnormally regular fibrous structure, so unreinforced liquid crystal plastics can reach or even exceed the mechanical strength and modulus of ordinary engineering plastics reinforced with several tens of percent glass fibers. If reinforced with glass fiber, carbon fiber, etc., it far exceeds other engineering plastics.
b、 Liquid crystal polymers also have excellent thermal stability, heat resistance, and chemical resistance. The creep characteristics of most plastics can be ignored, and liquid crystal materials have excellent wear resistance and abrasion reduction properties.
c. LCP has good weather resistance and radiation resistance, excellent flame retardancy, and can extinguish flames without continuing combustion. Its combustion level reaches UL94V-0 level.
d. LCP has excellent electrical insulation performance. Its dielectric strength is higher than that of general engineering plastics, and it has good arc resistance. Its electrical performance is not affected when used continuously at temperatures of 200-300 ℃. The intermittent use temperature can reach around 316 ℃.
e. LCP has outstanding corrosion resistance. LCP products will not be corroded in the presence of 90% acid and 50% alkali. They will not dissolve or cause stress cracking when in contact with industrial solvents, fuel oils, detergents, and hot water.
2. Application
a、 Electronic and electrical (LCP's main market): Surface assembly welding technology for electronic and electrical has high requirements for material dimensional stability and heat resistance (able to withstand gas phase welding and infrared welding used in surface assembly technology);
b、 Printed circuit boards, artificial satellite electronic components, jet engine parts, automotive mechanical parts, medical devices;
c、 High performance insulation layer and sheath (for wires and cables);
d. LCP with high filler or alloy (PSF/PBT/PA):
As an integrated circuit packaging material
Replace epoxy resin as the encapsulation material for coil skeleton;
Make fiber optic cable joint sheaths and high-strength components;
Replace ceramics as filling material in chemical separation towers.
Replace plastics such as polysulfone reinforced with glass fiber (for exterior panels of spacecraft and braking systems of automobiles).