产品详情
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\r聚四氟乙烯是由四氟乙烯单体采用悬浮法或分散法聚合而制得。聚四氟乙烯 （英文缩写为Teflon<\/span>或[PTFE<\/span>，F4]<\/span>）中文商品名“<\/span>特氟龙”<\/span>、“特氟隆<\/span><\/span><\/a>” <\/span>、“<\/span>泰氟龙”<\/span>等。它是由四氟乙烯经聚合<\/span><\/span><\/a><\/span>而成的高分子<\/span><\/span><\/a>化合物<\/span><\/span><\/a><\/span>，<\/span>聚四氟乙烯<\/span><\/span><\/a><\/span>相对分子质量较大，低的为数十万，高的达一千万以上，一般为数百万，结晶度为90<\/span>～95%<\/span>，熔融温度为327<\/span>～342<\/span>℃。可在 260℃<\/span><\/span>长期使用。由于高温裂解时还产生剧毒的副产物<\/span><\/span>，所以要特别注意安全。聚四氟乙烯<\/span>具有优良的化学稳定性、耐腐蚀性，耐磨性<\/span><\/span><\/a><\/span>好，并有自润滑<\/span><\/span><\/a><\/span>性。耐老化性优良。电性能优异，耐电弧性<\/span><\/span><\/a><\/span>好。广泛应用于各种需要抗酸碱<\/span><\/span><\/a><\/span>和有机溶剂<\/span><\/span><\/a><\/span>的场合。有密封性、高润滑不粘性、几乎所有的粘性物质都不能粘附其表面，有“塑料王<\/span><\/span><\/a>”<\/span>之称。<\/span><\/span>\r<\/p>\r<\/div>\r<\/div>\r<\/div><\/div>
