碳(tan)纤(xian)(xian)(xian)(xian)维(wei)(carbon fiber,简称(cheng)CF),是(shi)(shi)一种含碳(tan)量(liang)在(zai)95%以上(shang)的(de)高强度、高模量(liang)纤(xian)(xian)(xian)(xian)维(wei)的(de)新型(xing)纤(xian)(xian)(xian)(xian)维(wei)材(cai)料(liao)。它是(shi)(shi)由片(pian)状石(shi)墨微晶等有机纤(xian)(xian)(xian)(xian)维(wei)沿纤(xian)(xian)(xian)(xian)维(wei)轴向(xiang)方向(xiang)堆砌而(er)成(cheng),经碳(tan)化(hua)及石(shi)墨化(hua)处理而(er)得到(dao)的(de)微晶石(shi)墨材(cai)料(liao)。碳(tan)纤(xian)(xian)(xian)(xian)维(wei)"外柔内刚",质量(liang)比金属铝轻,但(dan)强度却高于钢铁,并且具(ju)有耐腐蚀、高模量(liang)的(de)特性,在(zai)国防军工(gong)和民用方面都是(shi)(shi)重要(yao)材(cai)料(liao)。它不仅具(ju)有碳(tan)材(cai)料(liao)的(de)固有本征特性,又(you)兼备纺织纤(xian)(xian)(xian)(xian)维(wei)的(de)柔软可加工(gong)性,是(shi)(shi)新一代增强纤(xian)(xian)(xian)(xian)维(wei)。
碳纤维具有(you)许多优良性(xing)能(neng),碳纤维的轴向(xiang)(xiang)强(qiang)度(du)(du)和(he)模(mo)量(liang)高(gao),密度(du)(du)低、比性(xing)能(neng)高(gao),无蠕变,非(fei)氧化环境(jing)下(xia)耐超高(gao)温,耐疲(pi)劳性(xing)好(hao),比热及导(dao)电性(xing)介于非(fei)金属(shu)和(he)金属(shu)之间,热膨胀系数(shu)小且具有(you)各向(xiang)(xiang)异性(xing),耐腐蚀性(xing)好(hao),X射(she)线透过性(xing)好(hao)。良好(hao)的导(dao)电导(dao)热性(xing)能(neng)、电磁屏(ping)蔽(bi)性(xing)好(hao)等。
碳纤维(wei)与传统的(de)玻(bo)璃(li)纤维(wei)相(xiang)比,杨氏模(mo)量(liang)是(shi)其3倍(bei)多;它(ta)与凯夫拉纤维(wei)相(xiang)比,杨氏模(mo)量(liang)是(shi)其2倍(bei)左右,在有(you)机溶剂、酸、碱中不(bu)溶不(bu)胀,耐蚀性突出。
玻璃纤(xian)维(wei)(wei)杆, 碳纤(xian)维(wei)(wei)杆 ,玻璃纤(xian)维(wei)(wei)管 碳纤(xian)维(wei)(wei)管