土工合成材料——长丝纺粘针刺非织造土工布的应用

土(tu)(tu)(tu)工(gong)(gong)格室、土(tu)(tu)(tu)工(gong)(gong)膜(mo)、土(tu)(tu)(tu)工(gong)(gong)格栅、土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)(bu)、土(tu)(tu)(tu)工(gong)(gong)网等(deng)土(tu)(tu)(tu)工(gong)(gong)合成材(cai)料，广(guang)泛(fan)应(ying)用(yong)于公路(lu)、铁路(lu)、水利、电力、建(jian)筑、海港、采矿、机场、军工(gong)(gong)、环保等(deng)工(gong)(gong)程(cheng)(cheng)领域，在工(gong)(gong)程(cheng)(cheng)应(ying)用(yong)中发(fa)挥加(jia)(jia)强(qiang)、过(guo)滤、排水、防渗、隔离和(he)防护等(deng)作用(yong)，被(bei)誉为(wei)继砖(zhuan)石、木材(cai)、钢材(cai)、水泥之后的(de)第(di)五(wu)大工(gong)(gong)程(cheng)(cheng)建(jian)筑材(cai)料。土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)(bu)具有强(qiang)度(du)高(gao)(gao)，柔性大，造(zao)价低，运输和(he)施(shi)工(gong)(gong)方(fang)便(bian)，适应(ying)性好等(deng)优势。土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)(bu)按照(zhao)生产工(gong)(gong)艺的(de)不同又分为(wei)长丝(si)(si)机织(zhi)土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)(bu)、裂(lie)膜(mo)丝(si)(si)机织(zhi)土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)(bu)、短纤针(zhen)刺(ci)非(fei)织(zhi)造(zao)土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)(bu)、长丝(si)(si)纺粘针(zhen)刺(ci)非(fei)织(zhi)造(zao)土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)(bu)等(deng)，其(qi)中以聚合物切片为(wei)原(yuan)料，经纺丝(si)(si)、铺网、针(zhen)刺(ci)加(jia)(jia)固制(zhi)成的(de)长丝(si)(si)纺粘针(zhen)刺(ci)土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)(bu)，由于生产流程(cheng)(cheng)短、生产效(xiao)率(lv)高(gao)(gao)、产品性能优良，近几年发(fa)展速度(du)最快，应(ying)用(yong)最广(guang)。

GB/T17639《土工(gong)(gong)(gong)合成材料(liao)长(zhang)(zhang)(zhang)丝纺(fang)粘(zhan)针刺(ci)非织造土工(gong)(gong)(gong)布(bu)(bu)》国(guo)家(jia)标(biao)准(zhun)于1998年(nian)(nian)首(shou)次制定，并于2008年(nian)(nian)第(di)一次修订，该(gai)标(biao)准(zhun)的(de)发布(bu)(bu)实施(shi)(shi)为(wei)指导企业(ye)(ye)生产、规(gui)范产品(pin)(pin)市场以及工(gong)(gong)(gong)程验收等发挥(hui)了(le)重(zhong)要作(zuo)用(yong)(yong)。目前该(gai)标(biao)准(zhun)已经实施(shi)(shi)了(le)十(shi)多(duo)年(nian)(nian)，而且我国(guo)长(zhang)(zhang)(zhang)丝纺(fang)粘(zhan)针刺(ci)非织造土工(gong)(gong)(gong)布(bu)(bu)生产技(ji)术(shu)也得到(dao)了(le)很大的(de)提升，尤其以聚丙烯为(wei)原料(liao)生产的(de)长(zhang)(zhang)(zhang)丝纺(fang)粘(zhan)针刺(ci)非织造土工(gong)(gong)(gong)布(bu)(bu)实现了(le)产业(ye)(ye)化(hua)，产品(pin)(pin)已应用(yong)(yong)于北(bei)京(jing)大兴机(ji)场、深圳宝安机(ji)场等工(gong)(gong)(gong)程，为(wei)了(le)更好地满足现阶(jie)段(duan)产品(pin)(pin)生产和应用(yong)(yong)需求。