一、什么是PE膜復合土工布
PE膜復(fu)(fu)合(he)土工(gong)(gong)布(bu)(bu),簡稱(cheng)復(fu)(fu)合(he)土工(gong)(gong)布(bu)(bu),是(shi)土工(gong)(gong)合(he)成(cheng)材(cai)料大家族中的(de)一(yi)員,是(shi)指(zhi)將土工(gong)(gong)布(bu)(bu)與PE土工(gong)(gong)膜復(fu)(fu)合(he)而成(cheng)的(de)一(yi)種土工(gong)(gong)材(cai)料,又稱(cheng)復(fu)(fu)合(he)土工(gong)(gong)膜。
復合土工(gong)布(bu)的產品(pin)品(pin)種(zhong)有很多,一(yi)般有一(yi)布(bu)一(yi)膜、兩(liang)布(bu)一(yi)膜、多布(bu)多膜等,之所(suo)以要用(yong)復合土工(gong)布(bu),主要是因為普通的土工(gong)布(bu)透水(shui)(shui)不防水(shui)(shui),在(zai)一(yi)些(xie)水(shui)(shui)利(li)工(gong)程領域,就(jiu)需要用(yong)到防水(shui)(shui)性能好的復合土工(gong)布(bu)。
二、土工布和復合土工布有啥區別
土(tu)(tu)工(gong)布(bu)和(he)復(fu)(fu)合(he)土(tu)(tu)工(gong)布(bu)都是土(tu)(tu)木工(gong)程(cheng)中常用的(de)材(cai)(cai)料,因(yin)為(wei)土(tu)(tu)工(gong)布(bu)和(he)復(fu)(fu)合(he)土(tu)(tu)工(gong)布(bu)的(de)外觀(guan)比較相似,因(yin)此導致很(hen)多客戶在選擇材(cai)(cai)料時(shi)分不(bu)清楚哪(na)種是土(tu)(tu)工(gong)布(bu),哪(na)種是復(fu)(fu)合(he)土(tu)(tu)工(gong)布(bu),下面為(wei)大家介紹一下復(fu)(fu)合(he)土(tu)(tu)工(gong)布(bu)和(he)土(tu)(tu)工(gong)布(bu)的(de)區別(bie):
1、生產工藝不同
土(tu)工(gong)(gong)布主要分為長(chang)絲(si)土(tu)工(gong)(gong)布和短(duan)絲(si)土(tu)工(gong)(gong)布,長(chang)絲(si)土(tu)工(gong)(gong)布是(shi)由聚酯切片(pian)經過(guo)高溫(wen)熔融(rong)-噴絲(si)成網-針刺而成。短(duan)絲(si)土(tu)工(gong)(gong)布是(shi)由滌綸短(duan)纖維經過(guo)設備的雜亂(luan)-梳理-成網-針刺而成,因此土(tu)工(gong)(gong)布屬于針刺工(gong)(gong)藝(yi)。而復合(he)(he)土(tu)工(gong)(gong)布則是(shi)由PE土(tu)工(gong)(gong)膜上下兩面或者一面粘合(he)(he)土(tu)工(gong)(gong)布生產而成,屬于熱復合(he)(he)工(gong)(gong)藝(yi)。
2、產品功能作用不同
無(wu)論是(shi)長絲(si)土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)還是(shi)短絲(si)土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)在工(gong)(gong)程(cheng)中(zhong)都是(shi)主要起到過濾、反(fan)濾、加(jia)筋、保護的(de)作用,土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)是(shi)透水不防(fang)(fang)水的(de)。而復(fu)合土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)則在工(gong)(gong)程(cheng)中(zhong)起到防(fang)(fang)滲(shen)(shen)、防(fang)(fang)水、隔離的(de)作用,復(fu)合土(tu)(tu)(tu)工(gong)(gong)布(bu)(bu)是(shi)防(fang)(fang)水防(fang)(fang)滲(shen)(shen)的(de)。
3、產品規格不同
土工布和復合土工布,其規格一般都是(shi)用克重(zhong)表(biao)示的(de)(de),常見的(de)(de)土工(gong)(gong)布的(de)(de)產品規格主要為100g/㎡-800g/㎡,而(er)復合土工(gong)(gong)布的(de)(de)產品規格則主要為300g/㎡-3000g/㎡。
4、執行標準不同
長絲土(tu)工(gong)布(bu)的國(guo)家執行(xing)標(biao)準為(wei)(wei)GB/T17639-2008,短絲土(tu)工(gong)布(bu)的執行(xing)標(biao)準為(wei)(wei)GB/T17638-2008,而復合(he)土(tu)工(gong)布(bu)的執行(xing)標(biao)準則(ze)為(wei)(wei)GB/T17642-2008。