什么是聚酯纖維

聚(ju)(ju)(ju)酯纖(xian)(xian)(xian)(xian)維(wei)也被稱為(wei)(wei)PET纖(xian)(xian)(xian)(xian)維(wei)，是(shi)聚(ju)(ju)(ju)酯材料制(zhi)作而成(cheng)的(de)。聚(ju)(ju)(ju)酯是(shi)由多元(yuan)醇和多元(yuan)酸縮聚(ju)(ju)(ju)而得的(de)聚(ju)(ju)(ju)合物，其(qi)中(zhong)的(de)部分PET，再通過水(shui)下切粒就會形成(cheng)聚(ju)(ju)(ju)酯纖(xian)(xian)(xian)(xian)維(wei)。纖(xian)(xian)(xian)(xian)維(wei)級聚(ju)(ju)(ju)酯切片(pian)(pian)用于制(zhi)造滌(di)綸(lun)短纖(xian)(xian)(xian)(xian)維(wei)和滌(di)綸(lun)長絲(si)，是(shi)供給(gei)滌(di)綸(lun)纖(xian)(xian)(xian)(xian)維(wei)企(qi)業(ye)加工纖(xian)(xian)(xian)(xian)維(wei)及相關(guan)產品的(de)原料，滌(di)綸(lun)作為(wei)(wei)化(hua)纖(xian)(xian)(xian)(xian)中(zhong)產量最(zui)(zui)大(da)的(de)品種，占據著(zhu)化(hua)纖(xian)(xian)(xian)(xian)行(xing)(xing)業(ye)近(jin)80%的(de)市場份額，因此聚(ju)(ju)(ju)酯系列的(de)市場變化(hua)和發展趨勢(shi)是(shi)化(hua)纖(xian)(xian)(xian)(xian)行(xing)(xing)業(ye)關(guan)注的(de)重點。同時(shi)，聚(ju)(ju)(ju)酯還有瓶(ping)類、薄膜(mo)等(deng)用途，廣(guang)泛(fan)應用于包裝業(ye)、電(dian)子電(dian)器、醫療衛生、建筑、汽車等(deng)領域(yu)，其(qi)中(zhong)包裝是(shi)聚(ju)(ju)(ju)酯最(zui)(zui)大(da)的(de)非(fei)纖(xian)(xian)(xian)(xian)應用市場，同時(shi)也是(shi)PET增長最(zui)(zui)快的(de)領域(yu)，可(ke)以說聚(ju)(ju)(ju)酯切片(pian)(pian)是(shi)連接石化(hua)產品和多個(ge)行(xing)(xing)業(ye)產品的(de)一個(ge)重要中(zhong)間產品。

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聚酯纖維的性能及用途

1、性能

滌綸的(de)(de)(de)(de)比重為(wei)(wei)1.38，熔(rong)點為(wei)(wei)255～260℃，在(zai)(zai)205℃時開始粘(zhan)結，安全熨燙溫(wen)度為(wei)(wei)135℃。吸濕度很低，僅為(wei)(wei)0.4%。長(chang)絲(si)的(de)(de)(de)(de)斷(duan)裂(lie)強(qiang)度為(wei)(wei)4.5～5.5克(ke)/旦(dan)，短纖維為(wei)(wei)3.5～5.5克(ke)/旦(dan)。長(chang)絲(si)的(de)(de)(de)(de)斷(duan)裂(lie)伸長(chang)率為(wei)(wei)15～25%，短纖維為(wei)(wei)25～40%。高(gao)強(qiang)型纖維強(qiang)度可達(da)7～8克(ke)/旦(dan)，伸長(chang)為(wei)(wei)7.5～12.5%。滌綸有優(you)良(liang)的(de)(de)(de)(de)耐(nai)皺性、彈性和尺寸(cun)穩定(ding)性，有良(liang)好(hao)的(de)(de)(de)(de)電絕緣性能(neng)，耐(nai)日光(guang)，耐(nai)摩擦(ca)，不霉不蛀，有較(jiao)好(hao)的(de)(de)(de)(de)耐(nai)化學試劑(ji)性能(neng)，能(neng)耐(nai)弱酸(suan)及弱堿。在(zai)(zai)室溫(wen)下(xia)，有一定(ding)的(de)(de)(de)(de)耐(nai)稀強(qiang)酸(suan)的(de)(de)(de)(de)能(neng)力，耐(nai)強(qiang)堿性較(jiao)差。滌綸的(de)(de)(de)(de)染色性能(neng)較(jiao)差，一般(ban)須在(zai)(zai)高(gao)溫(wen)或有載體存在(zai)(zai)的(de)(de)(de)(de)條件下(xia)用分散性染料染色。

2、用途

滌(di)(di)綸(lun)(lun)(lun)具(ju)有(you)許多(duo)優良的(de)(de)紡織(zhi)(zhi)(zhi)性(xing)能(neng)(neng)和(he)(he)服用(yong)(yong)(yong)性(xing)能(neng)(neng)，用(yong)(yong)(yong)途廣泛，可(ke)(ke)(ke)(ke)(ke)以(yi)純(chun)紡織(zhi)(zhi)(zhi)造(zao)，也(ye)(ye)可(ke)(ke)(ke)(ke)(ke)與棉(mian)、毛、絲(si)、麻等天然(ran)纖(xian)維和(he)(he)其他化學纖(xian)維混紡交織(zhi)(zhi)(zhi)，制成(cheng)花色繁多(duo)、堅(jian)牢挺括(kuo)、易洗易干、免(mian)燙(tang)和(he)(he)洗可(ke)(ke)(ke)(ke)(ke)穿性(xing)能(neng)(neng)良好(hao)的(de)(de)仿毛、仿棉(mian)、仿絲(si)、仿麻織(zhi)(zhi)(zhi)物。滌(di)(di)綸(lun)(lun)(lun)織(zhi)(zhi)(zhi)物適用(yong)(yong)(yong)于男(nan)女襯(chen)衫(shan)、外衣、兒童衣著、室(shi)內裝飾(shi)織(zhi)(zhi)(zhi)物和(he)(he)地毯等。由于滌(di)(di)綸(lun)(lun)(lun)具(ju)有(you)良好(hao)的(de)(de)彈(dan)性(xing)和(he)(he)蓬松性(xing)，也(ye)(ye)可(ke)(ke)(ke)(ke)(ke)用(yong)(yong)(yong)作(zuo)(zuo)絮棉(mian)。在(zai)工業上(shang)高(gao)強度滌(di)(di)綸(lun)(lun)(lun)可(ke)(ke)(ke)(ke)(ke)用(yong)(yong)(yong)作(zuo)(zuo)輪胎簾子線、運輸帶、消防水管、纜(lan)繩、漁網等，也(ye)(ye)可(ke)(ke)(ke)(ke)(ke)用(yong)(yong)(yong)作(zuo)(zuo)電絕(jue)緣材料、耐酸過(guo)濾布(bu)和(he)(he)造(zao)紙毛毯等。用(yong)(yong)(yong)滌(di)(di)綸(lun)(lun)(lun)制作(zuo)(zuo)無紡織(zhi)(zhi)(zhi)布(bu)可(ke)(ke)(ke)(ke)(ke)用(yong)(yong)(yong)于室(shi)內裝飾(shi)物、地毯底布(bu)、醫藥工業用(yong)(yong)(yong)布(bu)、絮絨、襯(chen)里等。