合(he)成(cheng)紙(zhi)(zhi)(zhi)(zhi)又稱化工(gong)薄(bo)(bo)膜(mo)紙(zhi)(zhi)(zhi)(zhi)、聚(ju)(ju)(ju)合(he)物(wu)(wu)紙(zhi)(zhi)(zhi)(zhi)、塑料紙(zhi)(zhi)(zhi)(zhi)等(deng)，主要(yao)原料是(shi)聚(ju)(ju)(ju)乙烯、聚(ju)(ju)(ju)丙(bing)烯、聚(ju)(ju)(ju)苯乙烯等(deng)有機(ji)樹(shu)脂(zhi)。制造過程中(zhong)，把(ba)這些聚(ju)(ju)(ju)烯烴等(deng)樹(shu)脂(zhi)和(he)無機(ji)填充物(wu)(wu)等(deng)主要(yao)原料經過熔融、擠壓、成(cheng)膜(mo)，沿不同(tong)軸向(xiang)拉伸，生成(cheng)薄(bo)(bo)膜(mo)；然(ran)后，把(ba)該(gai)薄(bo)(bo)膜(mo)進行“紙(zhi)(zhi)(zhi)(zhi)狀化”處理，使之變(bian)得不透明、白度(du)提高，于(yu)是(shi)就制成(cheng)了合(he)成(cheng)紙(zhi)(zhi)(zhi)(zhi)。合(he)成(cheng)紙(zhi)(zhi)(zhi)(zhi)是(shi)一種塑料新型(xing)材料產品，同(tong)時具(ju)有塑料和(he)紙(zhi)(zhi)(zhi)(zhi)的特征。

合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)的(de)種(zhong)類，按(an)生產原料的(de)不(bu)同(tong)，分為(wei)PP合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)、HDPE合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)、PS合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)、PVC合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)、PET合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)、ABS合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)等(deng)(deng)(deng)；按(an)填充(chong)劑(ji)的(de)不(bu)同(tong)，分為(wei)填充(chong)CaC03(calciumcarbonate)型(xing)，粘土(clay，主(zhu)要成(cheng)(cheng)(cheng)分SiO2、Al2O3)型(xing)，SiO2(silica)型(xing)，云母(talc)型(xing)，TiO2(titanium dioxide)型(xing)及復合(he)(he)(兩種(zhong)以上填充(chong))型(xing)等(deng)(deng)(deng)；按(an)生產方式的(de)不(bu)同(tong)，分為(wei)壓(ya)延法(如(ru)柔軟型(xing)PVC)、流延法(如(ru)CPP)、吹(chui)膜法(如(ru)HDPE)、雙向(xiang)拉伸法(如(ru)BOPP、BOPET)等(deng)(deng)(deng)；按(an)結構的(de)不(bu)同(tong)，分為(wei)單層合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)、三層合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)、五(wu)層合(he)(he)成(cheng)(cheng)(cheng)紙(zhi)等(deng)(deng)(deng)。