Liquid Crystal Polymer (LCP) – A relatively unique class of partially crystalline aromatic polyesters based on p-hydroxybenzoic acid and related monomers. Liquid crystal polymers are capable of forming regions of highly ordered structure while in the liquid phase. However, the degree of order is somewhat less than that of a regular solid crystal. Typically LCPs have outstanding mechanical properties at high temperatures, excellent chemical resistance, inherent flame retardancy and good weatherability. Liquid crystal polymers come in a variety of forms from sinterable high temperature to injection moldable compounds.
A number of liquid crystal polymers (LCPs) were produced in the 1970s which displayed order in the melt (liquid) phase analogous to that exhibited by non-polymeric liquid crystals. However, the commercial introduction of liquid crystal polymer resins did not occur until 1984, at that time liquid crystal polymers could not be injection molded. Today, liquid crystal polymers can be melt processed on conventional equipment at fast speeds with excellent replication of mold details and efficient use of regrind.
Characteristics of LCP
- l Molecular chains align themselves when molded, and this generates a self-reinforcing effect, Thereby resulting in extremely high strength and elastic modulus.
- Despite having a high elastic modulus, very much superior vibration absorbing characteristics are exhibited.
- Linear expansion coefficient in the flow direction in particular is very small, exhibiting a value an order of magnitude less than conventional plastics and on a par with steel.
- The thinner the product, the higher the proportion of the oriented surface layer, so greater strength and elastic modulus can be achieved the thinner the product.
- Because of its microcrystalline structure, LCP possesses superior deflection temperature under load (180-26 0°), continuous usage temperature (200-24 00°C), and solder heat resistance (2600°C for over 10 s, 310 0°C for 10 s), despite its relatively low melting point.
Applications in LCP
- Automotive industry: Automobile combustion system components, burning pumps, insulation components, precision components and electronic components, etc.
- Electrical and Electronics: High-density connector, coil planes, bobbins, the substrate carrier, capacitors case, socket, surface-mount electronic components, electronic packaging materials, printed circuit boards, braking equipment and lighting equipment, etc.
- Home-use Electric Appliances: Microwave oven kitchen containers and food containers, etc.
- Mechanical industry: Distillation column filler, valves, pumps, oil well equipment, measurement equipment parts, seals and bearings, etc.
- Medical industry: Surgical equipment, intubations, knives, sterilization trays, laparoscopy and dental materials, etc.
Manufacturer of LCP
For quality liquid crystal polymer LCP, Prochase Enterprise Co., Ltd. is one of the excellent choices of manufacturers for customers. If you need more information about LCP, try to check out Prochase’s website: www.prochase.com and let the company know your demands.