一、什么是PE膜復合土工布

PE膜(mo)(mo)復合(he)土(tu)(tu)工(gong)布，簡稱復合(he)土(tu)(tu)工(gong)布，是土(tu)(tu)工(gong)合(he)成材料(liao)大家族中的(de)(de)一員，是指將土(tu)(tu)工(gong)布與PE土(tu)(tu)工(gong)膜(mo)(mo)復合(he)而成的(de)(de)一種土(tu)(tu)工(gong)材料(liao)，又稱復合(he)土(tu)(tu)工(gong)膜(mo)(mo)。

復(fu)合土(tu)工(gong)布(bu)的產品品種有很(hen)多，一(yi)般有一(yi)布(bu)一(yi)膜、兩布(bu)一(yi)膜、多布(bu)多膜等(deng)，之所以要(yao)用(yong)復(fu)合土(tu)工(gong)布(bu)，主(zhu)要(yao)是因(yin)為普通的土(tu)工(gong)布(bu)透水(shui)不防(fang)水(shui)，在一(yi)些水(shui)利工(gong)程領域，就(jiu)需要(yao)用(yong)到防(fang)水(shui)性(xing)能好的復(fu)合土(tu)工(gong)布(bu)。

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二、土工布和復合土工布有啥區別

土(tu)工(gong)(gong)(gong)布(bu)(bu)和復(fu)(fu)合(he)土(tu)工(gong)(gong)(gong)布(bu)(bu)都是土(tu)木工(gong)(gong)(gong)程中(zhong)常用的(de)材(cai)料(liao)，因(yin)為(wei)土(tu)工(gong)(gong)(gong)布(bu)(bu)和復(fu)(fu)合(he)土(tu)工(gong)(gong)(gong)布(bu)(bu)的(de)外(wai)觀比較相似(si)，因(yin)此(ci)導致很多客(ke)戶在(zai)選(xuan)擇(ze)材(cai)料(liao)時分不清(qing)楚哪(na)種是土(tu)工(gong)(gong)(gong)布(bu)(bu)，哪(na)種是復(fu)(fu)合(he)土(tu)工(gong)(gong)(gong)布(bu)(bu)，下面為(wei)大家介紹一下復(fu)(fu)合(he)土(tu)工(gong)(gong)(gong)布(bu)(bu)和土(tu)工(gong)(gong)(gong)布(bu)(bu)的(de)區別：

1、生產工藝不同

土(tu)工(gong)(gong)(gong)布主要(yao)分為(wei)長絲(si)土(tu)工(gong)(gong)(gong)布和短(duan)絲(si)土(tu)工(gong)(gong)(gong)布，長絲(si)土(tu)工(gong)(gong)(gong)布是(shi)由(you)聚酯切片經過高(gao)溫熔融(rong)-噴絲(si)成網-針刺(ci)(ci)而(er)成。短(duan)絲(si)土(tu)工(gong)(gong)(gong)布是(shi)由(you)滌綸短(duan)纖維經過設(she)備的雜(za)亂-梳理(li)-成網-針刺(ci)(ci)而(er)成，因此土(tu)工(gong)(gong)(gong)布屬(shu)于針刺(ci)(ci)工(gong)(gong)(gong)藝(yi)。而(er)復(fu)合(he)土(tu)工(gong)(gong)(gong)布則(ze)是(shi)由(you)PE土(tu)工(gong)(gong)(gong)膜上下兩面或者(zhe)一面粘(zhan)合(he)土(tu)工(gong)(gong)(gong)布生產而(er)成，屬(shu)于熱(re)復(fu)合(he)工(gong)(gong)(gong)藝(yi)。

2、產品功能作用不同

無論是(shi)長絲土工(gong)(gong)布還是(shi)短絲土工(gong)(gong)布在工(gong)(gong)程中(zhong)都是(shi)主(zhu)要起(qi)(qi)到過濾(lv)、反濾(lv)、加筋、保護(hu)的作(zuo)用，土工(gong)(gong)布是(shi)透水不防(fang)水的。而復(fu)合(he)土工(gong)(gong)布則在工(gong)(gong)程中(zhong)起(qi)(qi)到防(fang)滲、防(fang)水、隔(ge)離的作(zuo)用，復(fu)合(he)土工(gong)(gong)布是(shi)防(fang)水防(fang)滲的。

3、產品規格不同

土工布和復合土工布，其規(gui)格(ge)一般(ban)都是(shi)用克重表示的(de)，常見的(de)土工(gong)布的(de)產(chan)品規(gui)格(ge)主要為100g/㎡-800g/㎡，而復合(he)土工(gong)布的(de)產(chan)品規(gui)格(ge)則主要為300g/㎡-3000g/㎡。

4、執行標準不同

長(chang)絲土(tu)工布(bu)(bu)的(de)(de)國家執行(xing)標準為GB/T17639-2008，短絲土(tu)工布(bu)(bu)的(de)(de)執行(xing)標準為GB/T17638-2008，而(er)復(fu)合土(tu)工布(bu)(bu)的(de)(de)執行(xing)標準則為GB/T17642-2008。