碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)材料(liao)又(you)被称为(wei)碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)原(yuan)料(liao)。碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)，又(you)称碳(tan)(tan)(tan)(tan)(tan)(tan)化(hua)纤(xian)(xian)(xian)(xian)维(wei)，泛(fan)指一(yi)些(xie)以(yi)(yi)碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)编织或多层复合(he)而成(cheng)(cheng)的(de)(de)材料(liao)。因为(wei)它(ta)又(you)轻又(you)坚硬，所(suo)以(yi)(yi)它(ta)的(de)(de)用(yong)途很广泛(fan)。物理结构与化(hua)学特性是前面(mian)为(wei)直(zhi)径6微米的(de)(de)碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)与后面(mian)人(ren)类头发(fa)的(de)(de)比较每(mei)一(yi)根碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)由数千条(tiao)更微小的(de)(de)碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)所(suo)组成(cheng)(cheng)，直(zhi)径大约5至8微米；在原(yuan)子层面(mian)的(de)(de)碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)跟石墨(mo)很相近，是由一(yi)层层以(yi)(yi)六角型排列的(de)(de)碳(tan)(tan)(tan)(tan)(tan)(tan)原(yuan)子所(suo)构成(cheng)(cheng)；一(yi)般(ban)碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)的(de)(de)密度为(wei)1750 kg/m3。导热(re)能力高但传(chuan)电能力低，碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)的(de)(de)比热(re)容量亦比铜低；当加热(re)的(de)(de)时(shi)候，碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)会变厚而短；虽然(ran)碳(tan)(tan)(tan)(tan)(tan)(tan)纤(xian)(xian)(xian)(xian)维(wei)的(de)(de)天(tian)然(ran)颜(yan)色是黑色，但可以(yi)(yi)把(ba)它(ta)染(ran)上不同的(de)(de)颜(yan)色。
碳纤维杆(gan)(gan) , 玻璃纤维杆(gan)(gan) 碳纤维管(guan), 玻璃纤维管(guan)
