什么是聚酯纖維

聚(ju)酯(zhi)(zhi)(zhi)纖(xian)(xian)(xian)(xian)維(wei)(wei)(wei)也(ye)被稱為PET纖(xian)(xian)(xian)(xian)維(wei)(wei)(wei)，是(shi)聚(ju)酯(zhi)(zhi)(zhi)材料制作而(er)成的(de)(de)。聚(ju)酯(zhi)(zhi)(zhi)是(shi)由多(duo)元(yuan)(yuan)醇和(he)多(duo)元(yuan)(yuan)酸縮聚(ju)而(er)得的(de)(de)聚(ju)合物，其中(zhong)的(de)(de)部分(fen)PET，再通過水下切粒(li)就會形(xing)成聚(ju)酯(zhi)(zhi)(zhi)纖(xian)(xian)(xian)(xian)維(wei)(wei)(wei)。纖(xian)(xian)(xian)(xian)維(wei)(wei)(wei)級聚(ju)酯(zhi)(zhi)(zhi)切片用(yong)(yong)于制造滌(di)綸(lun)短纖(xian)(xian)(xian)(xian)維(wei)(wei)(wei)和(he)滌(di)綸(lun)長絲，是(shi)供給滌(di)綸(lun)纖(xian)(xian)(xian)(xian)維(wei)(wei)(wei)企業(ye)(ye)加工纖(xian)(xian)(xian)(xian)維(wei)(wei)(wei)及相關產(chan)品的(de)(de)原(yuan)料，滌(di)綸(lun)作為化纖(xian)(xian)(xian)(xian)中(zhong)產(chan)量最大的(de)(de)品種(zhong)，占據著化纖(xian)(xian)(xian)(xian)行業(ye)(ye)近80%的(de)(de)市(shi)場(chang)份額，因此(ci)聚(ju)酯(zhi)(zhi)(zhi)系(xi)列(lie)的(de)(de)市(shi)場(chang)變化和(he)發(fa)展趨勢是(shi)化纖(xian)(xian)(xian)(xian)行業(ye)(ye)關注(zhu)的(de)(de)重(zhong)點。同時，聚(ju)酯(zhi)(zhi)(zhi)還有瓶類、薄(bo)膜等用(yong)(yong)途(tu)，廣泛應用(yong)(yong)于包(bao)裝(zhuang)業(ye)(ye)、電子(zi)電器、醫療衛生(sheng)、建筑(zhu)、汽(qi)車等領域，其中(zhong)包(bao)裝(zhuang)是(shi)聚(ju)酯(zhi)(zhi)(zhi)最大的(de)(de)非纖(xian)(xian)(xian)(xian)應用(yong)(yong)市(shi)場(chang)，同時也(ye)是(shi)PET增長最快的(de)(de)領域，可以說聚(ju)酯(zhi)(zhi)(zhi)切片是(shi)連接石化產(chan)品和(he)多(duo)個行業(ye)(ye)產(chan)品的(de)(de)一個重(zhong)要(yao)中(zhong)間產(chan)品。

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聚酯纖維的性能及用途

1、性能

滌(di)綸(lun)的(de)(de)比重為1.38，熔點為255～260℃，在(zai)205℃時開始粘結，安全熨燙(tang)溫(wen)度(du)為135℃。吸(xi)濕(shi)度(du)很(hen)低，僅為0.4%。長絲(si)的(de)(de)斷裂強度(du)為4.5～5.5克(ke)/旦，短(duan)纖(xian)維(wei)(wei)為3.5～5.5克(ke)/旦。長絲(si)的(de)(de)斷裂伸長率為15～25%，短(duan)纖(xian)維(wei)(wei)為25～40%。高(gao)強型纖(xian)維(wei)(wei)強度(du)可達7～8克(ke)/旦，伸長為7.5～12.5%。滌(di)綸(lun)有(you)優良的(de)(de)耐(nai)皺性、彈(dan)性和尺寸穩定性，有(you)良好的(de)(de)電絕緣性能，耐(nai)日光(guang)，耐(nai)摩擦，不霉不蛀，有(you)較(jiao)好的(de)(de)耐(nai)化學試劑(ji)性能，能耐(nai)弱(ruo)酸及弱(ruo)堿。在(zai)室溫(wen)下，有(you)一定的(de)(de)耐(nai)稀(xi)強酸的(de)(de)能力，耐(nai)強堿性較(jiao)差(cha)。滌(di)綸(lun)的(de)(de)染(ran)(ran)色性能較(jiao)差(cha)，一般須(xu)在(zai)高(gao)溫(wen)或有(you)載體存在(zai)的(de)(de)條件下用分散性染(ran)(ran)料染(ran)(ran)色。

2、用途

滌綸(lun)具(ju)有(you)許多優良(liang)的(de)紡(fang)織(zhi)(zhi)性能和(he)(he)(he)服用(yong)(yong)(yong)(yong)性能，用(yong)(yong)(yong)(yong)途廣泛(fan)，可(ke)以(yi)純紡(fang)織(zhi)(zhi)造(zao)，也可(ke)與棉、毛、絲、麻(ma)等天然纖維和(he)(he)(he)其(qi)他化學纖維混紡(fang)交織(zhi)(zhi)，制成花色繁多、堅(jian)牢(lao)挺括、易洗易干、免燙和(he)(he)(he)洗可(ke)穿性能良(liang)好(hao)的(de)仿(fang)毛、仿(fang)棉、仿(fang)絲、仿(fang)麻(ma)織(zhi)(zhi)物(wu)。滌綸(lun)織(zhi)(zhi)物(wu)適用(yong)(yong)(yong)(yong)于(yu)(yu)男女(nv)襯衫、外衣(yi)、兒童(tong)衣(yi)著、室內裝飾(shi)織(zhi)(zhi)物(wu)和(he)(he)(he)地毯(tan)等。由于(yu)(yu)滌綸(lun)具(ju)有(you)良(liang)好(hao)的(de)彈(dan)性和(he)(he)(he)蓬松性，也可(ke)用(yong)(yong)(yong)(yong)作(zuo)絮棉。在工(gong)業上高強度(du)滌綸(lun)可(ke)用(yong)(yong)(yong)(yong)作(zuo)輪胎簾子線(xian)、運輸帶、消防水(shui)管、纜(lan)繩、漁網等，也可(ke)用(yong)(yong)(yong)(yong)作(zuo)電(dian)絕緣(yuan)材料、耐酸(suan)過濾(lv)布(bu)和(he)(he)(he)造(zao)紙毛毯(tan)等。用(yong)(yong)(yong)(yong)滌綸(lun)制作(zuo)無紡(fang)織(zhi)(zhi)布(bu)可(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)室內裝飾(shi)物(wu)、地毯(tan)底布(bu)、醫(yi)藥(yao)工(gong)業用(yong)(yong)(yong)(yong)布(bu)、絮絨(rong)、襯里等。