一、什么是PE膜復合土工布
PE膜復(fu)(fu)合(he)(he)土(tu)(tu)工(gong)(gong)布(bu),簡(jian)稱復(fu)(fu)合(he)(he)土(tu)(tu)工(gong)(gong)布(bu),是土(tu)(tu)工(gong)(gong)合(he)(he)成材料大家族中(zhong)的一(yi)(yi)員(yuan),是指將(jiang)土(tu)(tu)工(gong)(gong)布(bu)與PE土(tu)(tu)工(gong)(gong)膜復(fu)(fu)合(he)(he)而成的一(yi)(yi)種土(tu)(tu)工(gong)(gong)材料,又稱復(fu)(fu)合(he)(he)土(tu)(tu)工(gong)(gong)膜。
復(fu)合土(tu)(tu)工(gong)(gong)布(bu)(bu)的產品品種(zhong)有很多(duo),一(yi)般有一(yi)布(bu)(bu)一(yi)膜、兩布(bu)(bu)一(yi)膜、多(duo)布(bu)(bu)多(duo)膜等(deng),之所以(yi)要(yao)用復(fu)合土(tu)(tu)工(gong)(gong)布(bu)(bu),主要(yao)是因為普通(tong)的土(tu)(tu)工(gong)(gong)布(bu)(bu)透(tou)水(shui)(shui)不防(fang)水(shui)(shui),在一(yi)些(xie)水(shui)(shui)利工(gong)(gong)程領域,就(jiu)需要(yao)用到防(fang)水(shui)(shui)性能好的復(fu)合土(tu)(tu)工(gong)(gong)布(bu)(bu)。
二、土工布和復合土工布有啥區別
土工(gong)(gong)(gong)布(bu)和(he)復(fu)(fu)(fu)合土工(gong)(gong)(gong)布(bu)都是土木(mu)工(gong)(gong)(gong)程中常用的材料,因(yin)為(wei)土工(gong)(gong)(gong)布(bu)和(he)復(fu)(fu)(fu)合土工(gong)(gong)(gong)布(bu)的外觀(guan)比較(jiao)相似,因(yin)此導致(zhi)很多(duo)客戶在選(xuan)擇材料時分(fen)不清(qing)楚哪種(zhong)是土工(gong)(gong)(gong)布(bu),哪種(zhong)是復(fu)(fu)(fu)合土工(gong)(gong)(gong)布(bu),下(xia)面為(wei)大家介紹一下(xia)復(fu)(fu)(fu)合土工(gong)(gong)(gong)布(bu)和(he)土工(gong)(gong)(gong)布(bu)的區別:
1、生產工藝不同
土(tu)工(gong)(gong)(gong)(gong)(gong)布(bu)(bu)主要分為(wei)長(chang)絲土(tu)工(gong)(gong)(gong)(gong)(gong)布(bu)(bu)和短絲土(tu)工(gong)(gong)(gong)(gong)(gong)布(bu)(bu),長(chang)絲土(tu)工(gong)(gong)(gong)(gong)(gong)布(bu)(bu)是(shi)(shi)由(you)(you)聚酯(zhi)切片經(jing)過高溫熔融-噴絲成(cheng)(cheng)(cheng)網-針刺(ci)而(er)(er)(er)成(cheng)(cheng)(cheng)。短絲土(tu)工(gong)(gong)(gong)(gong)(gong)布(bu)(bu)是(shi)(shi)由(you)(you)滌(di)綸短纖(xian)維經(jing)過設(she)備的雜亂-梳理-成(cheng)(cheng)(cheng)網-針刺(ci)而(er)(er)(er)成(cheng)(cheng)(cheng),因此土(tu)工(gong)(gong)(gong)(gong)(gong)布(bu)(bu)屬于針刺(ci)工(gong)(gong)(gong)(gong)(gong)藝(yi)。而(er)(er)(er)復(fu)合(he)土(tu)工(gong)(gong)(gong)(gong)(gong)布(bu)(bu)則是(shi)(shi)由(you)(you)PE土(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)上下兩面或者一(yi)面粘合(he)土(tu)工(gong)(gong)(gong)(gong)(gong)布(bu)(bu)生產(chan)而(er)(er)(er)成(cheng)(cheng)(cheng),屬于熱復(fu)合(he)工(gong)(gong)(gong)(gong)(gong)藝(yi)。
2、產品功能作用不同
無(wu)論(lun)是長(chang)絲(si)土(tu)工(gong)(gong)布還是短(duan)絲(si)土(tu)工(gong)(gong)布在工(gong)(gong)程(cheng)中(zhong)都是主要起到過濾、反(fan)濾、加筋(jin)、保護(hu)的(de)作(zuo)用(yong),土(tu)工(gong)(gong)布是透水不防(fang)水的(de)。而復合土(tu)工(gong)(gong)布則(ze)在工(gong)(gong)程(cheng)中(zhong)起到防(fang)滲(shen)、防(fang)水、隔離(li)的(de)作(zuo)用(yong),復合土(tu)工(gong)(gong)布是防(fang)水防(fang)滲(shen)的(de)。
3、產品規格不同
土工布和復合土工布,其規格(ge)一般都是用克重表示的(de)(de),常(chang)見的(de)(de)土(tu)工布(bu)的(de)(de)產(chan)品規格(ge)主要(yao)為100g/㎡-800g/㎡,而復合土(tu)工布(bu)的(de)(de)產(chan)品規格(ge)則(ze)主要(yao)為300g/㎡-3000g/㎡。
4、執行標準不同
長絲(si)土工布(bu)(bu)的(de)國(guo)家執行標準(zhun)(zhun)為GB/T17639-2008,短(duan)絲(si)土工布(bu)(bu)的(de)執行標準(zhun)(zhun)為GB/T17638-2008,而復合土工布(bu)(bu)的(de)執行標準(zhun)(zhun)則為GB/T17642-2008。