一、什么是PE膜復合土工布

PE膜復(fu)合土(tu)(tu)工布，簡稱(cheng)復(fu)合土(tu)(tu)工布，是土(tu)(tu)工合成材料大家族中的(de)一(yi)員，是指將土(tu)(tu)工布與PE土(tu)(tu)工膜復(fu)合而(er)成的(de)一(yi)種土(tu)(tu)工材料，又稱(cheng)復(fu)合土(tu)(tu)工膜。

復合(he)土工(gong)(gong)布的(de)產品品種(zhong)有很多，一(yi)般有一(yi)布一(yi)膜(mo)、兩布一(yi)膜(mo)、多布多膜(mo)等，之所(suo)以要(yao)用(yong)復合(he)土工(gong)(gong)布，主(zhu)要(yao)是(shi)因為普(pu)通的(de)土工(gong)(gong)布透水(shui)(shui)不防水(shui)(shui)，在一(yi)些(xie)水(shui)(shui)利工(gong)(gong)程領(ling)域，就(jiu)需(xu)要(yao)用(yong)到防水(shui)(shui)性能好(hao)的(de)復合(he)土工(gong)(gong)布。

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二、土工布和復合土工布有啥區別

土工(gong)(gong)(gong)(gong)布(bu)(bu)(bu)和復(fu)(fu)合(he)土工(gong)(gong)(gong)(gong)布(bu)(bu)(bu)都是(shi)土木工(gong)(gong)(gong)(gong)程中常(chang)用的材料，因(yin)為土工(gong)(gong)(gong)(gong)布(bu)(bu)(bu)和復(fu)(fu)合(he)土工(gong)(gong)(gong)(gong)布(bu)(bu)(bu)的外(wai)觀比(bi)較相似，因(yin)此導致很多客(ke)戶(hu)在(zai)選擇(ze)材料時分不清楚哪種是(shi)土工(gong)(gong)(gong)(gong)布(bu)(bu)(bu)，哪種是(shi)復(fu)(fu)合(he)土工(gong)(gong)(gong)(gong)布(bu)(bu)(bu)，下面為大家介紹一下復(fu)(fu)合(he)土工(gong)(gong)(gong)(gong)布(bu)(bu)(bu)和土工(gong)(gong)(gong)(gong)布(bu)(bu)(bu)的區別(bie)：

1、生產工藝不同

土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)主要分為長(chang)(chang)絲(si)(si)(si)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)和(he)短絲(si)(si)(si)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)，長(chang)(chang)絲(si)(si)(si)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)是(shi)由聚酯切(qie)片(pian)經(jing)過(guo)高溫熔融-噴絲(si)(si)(si)成(cheng)網-針刺而(er)成(cheng)。短絲(si)(si)(si)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)是(shi)由滌綸短纖維經(jing)過(guo)設(she)備的雜亂-梳理-成(cheng)網-針刺而(er)成(cheng)，因(yin)此土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)屬(shu)(shu)于(yu)針刺工(gong)(gong)(gong)藝。而(er)復合(he)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)則是(shi)由PE土(tu)(tu)工(gong)(gong)(gong)膜上下兩面或者一面粘合(he)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)生產而(er)成(cheng)，屬(shu)(shu)于(yu)熱復合(he)工(gong)(gong)(gong)藝。

2、產品功能作用不同

無(wu)論是長絲土工(gong)(gong)(gong)布還是短絲土工(gong)(gong)(gong)布在(zai)(zai)工(gong)(gong)(gong)程中(zhong)都(dou)是主要(yao)起(qi)到過濾、反濾、加筋(jin)、保護(hu)的(de)作用，土工(gong)(gong)(gong)布是透水(shui)(shui)不防水(shui)(shui)的(de)。而復合土工(gong)(gong)(gong)布則(ze)在(zai)(zai)工(gong)(gong)(gong)程中(zhong)起(qi)到防滲、防水(shui)(shui)、隔離的(de)作用，復合土工(gong)(gong)(gong)布是防水(shui)(shui)防滲的(de)。

3、產品規格不同

土工布和復合土工布，其規格一般都是用克(ke)重表(biao)示(shi)的(de)(de)，常見的(de)(de)土工布的(de)(de)產品(pin)規格主(zhu)要(yao)為100g/㎡-800g/㎡，而(er)復合土工布的(de)(de)產品(pin)規格則主(zhu)要(yao)為300g/㎡-3000g/㎡。

4、執行標準不同

長(chang)絲土(tu)(tu)工布(bu)(bu)的國(guo)家執行標準為(wei)GB/T17639-2008，短(duan)絲土(tu)(tu)工布(bu)(bu)的執行標準為(wei)GB/T17638-2008，而復合(he)土(tu)(tu)工布(bu)(bu)的執行標準則為(wei)GB/T17642-2008。