聚丙烯非织造土工布的老化情况进行改善及其应用领域

土(tu)工(gong)(gong)(gong)布(bu)是一(yi)种(zhong)(zhong)由聚合(he)物(wu)原料(liao)制成的(de)具(ju)(ju)有透水(shui)、透湿功(gong)能的(de)土(tu)木工(gong)(gong)(gong)程用(yong)纺织品，已成为继木材(cai)、钢材(cai)和混(hun)凝土(tu)之(zhi)后的(de)第四大(da)建筑材(cai)料(liao)。土(tu)工(gong)(gong)(gong)布(bu)种(zhong)(zhong)类繁多(duo)，按照生产加(jia)(jia)工(gong)(gong)(gong)方(fang)式可分为织造(zao)型土(tu)工(gong)(gong)(gong)布(bu)、非织造(zao)土(tu)工(gong)(gong)(gong)布(bu)和复(fu)合(he)土(tu)工(gong)(gong)(gong)布(bu)。其中非织造(zao)土(tu)工(gong)(gong)(gong)布(bu)因其工(gong)(gong)(gong)艺流程简单(dan)、生产速度快、力(li)学性能优异、成本低、应(ying)用(yong)广泛成为了土(tu)工(gong)(gong)(gong)布(bu)的(de)主要品种(zhong)(zhong)，还(hai)具(ju)(ju)有排水(shui)、过滤(lv)、分离(li)、加(jia)(jia)固和防护等(deng)功(gong)能，广泛应(ying)用(yong)于公路、铁(tie)路、水(shui)利等(deng)领(ling)域(yu)，是土(tu)工(gong)(gong)(gong)布(bu)未来发展的(de)主要方(fang)向。 

非织(zhi)造土工(gong)布在基础应用、土工(gong)工(gong)程建设(she)中(zhong)具有十分重要的地位，特别是近(jin)年来经济(ji)的迅速发(fa)展以及国家对基础建设(she)的愈加重视，以致(zhi)于非织(zhi)造土工(gong)布发(fa)展非常迅速。

目(mu)前国(guo)内土工(gong)布常用(yong)原料(liao)(liao)多为聚(ju)(ju)酯纤维,但随着国(guo)内环境(jing)的(de)逐步恶化，市场对(dui)土工(gong)布有了更(geng)高(gao)的(de)性能要(yao)求(qiu)，以聚(ju)(ju)酯为原料(liao)(liao)的(de)土工(gong)布难以适(shi)应恶劣的(de)酸(suan)碱(jian)环境(jing)。而聚(ju)(ju)丙烯(xi)是(shi)一种来(lai)源广泛(fan)、价格(ge)便(bian)宜(yi)的(de)优(you)秀(xiu)原料(liao)(liao)，更(geng)关键的(de)是(shi)其还具有较好的(de)耐(nai)酸(suan)碱(jian)性能，聚(ju)(ju)丙烯(xi)非织(zhi)造土工(gong)布能够较好地(di)应用(yong)于各类项(xiang)目(mu)工(gong)程中，是(shi)近年(nian)来(lai)土工(gong)布领域(yu)的(de)研究热点。

但(dan)聚丙(bing)烯在(zai)长时间的使(shi)用(yong)(yong)过(guo)程中(zhong)，往(wang)往(wang)会因(yin)为(wei)光照、温度和氧气(qi)等外(wai)界条(tiao)件(jian)发生(sheng)老(lao)化(hua)(hua)，降低聚丙(bing)烯非织(zhi)造土(tu)(tu)工布(bu)的使(shi)用(yong)(yong)寿命(ming)，极大(da)限制了(le)其在(zai)工程中(zhong)的推广应(ying)用(yong)(yong)。为(wei)了(le)对(dui)聚丙(bing)烯非织(zhi)造土(tu)(tu)工布(bu)的老(lao)化(hua)(hua)情况(kuang)进(jin)行(xing)改善及(ji)其应(ying)用(yong)(yong)领域进(jin)行(xing)拓展(zhan)，往(wang)往(wang)需要(yao)进(jin)行(xing)抗老(lao)化(hua)(hua)处理。