东莞市恒磊塑胶有限公司
SUMIKASUPER LCP E6808LHF
Technical Datasheet | Supplied by Sumitomo Chemical
SUMIKASUPER LCP E6808LHF is a high fluidity, ultra-high heat resistant and ultra-low warpage thermotropic liquid crystalline polyester (LCP) grade by Sumitomo Chemical, reinforced with 40% glass fiber or inorganic filler. Exhibits high strength, increased light transmittance, high heat aging resistance, low viscosity, high moldability, low shrinkage and low coefficient of linear expansion (flow direction). Offers high-speed setting with less flash production, high anisotropy, low weld strength, rapid solidification speed, excellent flame retardancy, low water absorbency, highest limiting oxygen index and high thermal stability. Provides outstanding chemical resistance, hot water resistance, low amount of gas generation on heating, bondability with off-the-shelf adhesives and no surface treatment. Shows high temperature and high shear rate dependence on apparent melt viscosity. Does not expand or deteriorate when exposed to oils, even at high temperatures. Is welded with ultrasonic welding and applicable to lead-free soldering (SMD). SUMIKASUPER LCP E6808LHF is suitable for processing by high precision injection molding. Used in CPU sockets. Complies with UL 94 V-0 flame rating.
LCP SUMIKASUPER E6808LHF
a、LCP具有自增强性：具有异常规整的纤维状结构特点，因而不增强的液晶塑料即可达到甚至超过普通工程塑料用百分之几十玻璃纤维增强后的机械强度及其模量的水平。如果用玻璃纤维、碳纤维等增强，更远远超过其他工程塑料。
b、液晶聚合物还具有优良的热稳定性、耐热性及耐化学药品性，对大多数塑料存在的蠕变特点，液晶材料可以忽略不计，而且耐磨、减磨性均优异。
c、LCP的耐气候性、耐辐射性良好，具有优异的阻燃性，能熄灭火焰而不再继续进行燃烧。其燃烧等级达到UL94V-0级水平。
d、LCP具有优良的电绝缘性能。其介电强度比一般工程塑料高，耐电弧性良好。在连续使用温度200-300℃，其电性能不受影响。间断使用温度可达316℃左右。
e、LCP具有突出的耐腐蚀性能，LCP制品在浓度为90%酸及浓度为50%碱存在下不会受到侵蚀，对于工业溶剂、燃料油、洗涤剂及热水，接触后不会被溶解，也不会引起应力开裂。
⒉应用
a、电子电气是LCP的主要市场：电子电气的表面装配焊接技术对材料的尺寸稳定性和耐热性有很高的要求（能经受表面装配技术中使用的气相焊接和红外焊接）；
b、LCP：印刷电路板、人造卫星电子部件、喷气发动机零件、汽车机械零件、医疗方面；
