什么是聚酯纖維
聚(ju)(ju)(ju)酯(zhi)纖(xian)(xian)(xian)維(wei)(wei)也被稱(cheng)為PET纖(xian)(xian)(xian)維(wei)(wei),是(shi)(shi)聚(ju)(ju)(ju)酯(zhi)材料制作而成的(de)(de)(de)。聚(ju)(ju)(ju)酯(zhi)是(shi)(shi)由多(duo)元(yuan)醇和(he)(he)(he)多(duo)元(yuan)酸縮(suo)聚(ju)(ju)(ju)而得(de)的(de)(de)(de)聚(ju)(ju)(ju)合物,其中(zhong)的(de)(de)(de)部分(fen)PET,再(zai)通過水下(xia)切粒就會形成聚(ju)(ju)(ju)酯(zhi)纖(xian)(xian)(xian)維(wei)(wei)。纖(xian)(xian)(xian)維(wei)(wei)級(ji)聚(ju)(ju)(ju)酯(zhi)切片(pian)用于制造滌綸(lun)短(duan)纖(xian)(xian)(xian)維(wei)(wei)和(he)(he)(he)滌綸(lun)長(chang)絲,是(shi)(shi)供給(gei)滌綸(lun)纖(xian)(xian)(xian)維(wei)(wei)企業(ye)加(jia)工纖(xian)(xian)(xian)維(wei)(wei)及(ji)相關產(chan)品(pin)的(de)(de)(de)原料,滌綸(lun)作為化(hua)(hua)(hua)纖(xian)(xian)(xian)中(zhong)產(chan)量最大(da)的(de)(de)(de)品(pin)種,占(zhan)據(ju)著化(hua)(hua)(hua)纖(xian)(xian)(xian)行業(ye)近80%的(de)(de)(de)市(shi)場(chang)份額,因此聚(ju)(ju)(ju)酯(zhi)系(xi)列的(de)(de)(de)市(shi)場(chang)變化(hua)(hua)(hua)和(he)(he)(he)發展趨(qu)勢是(shi)(shi)化(hua)(hua)(hua)纖(xian)(xian)(xian)行業(ye)關注的(de)(de)(de)重(zhong)點。同時(shi),聚(ju)(ju)(ju)酯(zhi)還有(you)瓶類、薄膜等用途,廣泛應用于包裝業(ye)、電(dian)子電(dian)器、醫療衛生、建(jian)筑(zhu)、汽車等領(ling)域,其中(zhong)包裝是(shi)(shi)聚(ju)(ju)(ju)酯(zhi)最大(da)的(de)(de)(de)非纖(xian)(xian)(xian)應用市(shi)場(chang),同時(shi)也是(shi)(shi)PET增長(chang)最快(kuai)的(de)(de)(de)領(ling)域,可以說聚(ju)(ju)(ju)酯(zhi)切片(pian)是(shi)(shi)連接石化(hua)(hua)(hua)產(chan)品(pin)和(he)(he)(he)多(duo)個(ge)行業(ye)產(chan)品(pin)的(de)(de)(de)一(yi)個(ge)重(zhong)要(yao)中(zhong)間產(chan)品(pin)。
聚酯纖維的性能及用途
1、性能
滌綸(lun)的(de)比重為1.38,熔(rong)點(dian)為255~260℃,在(zai)(zai)(zai)205℃時(shi)開始粘結,安全熨燙溫(wen)度(du)(du)為135℃。吸濕度(du)(du)很低,僅(jin)為0.4%。長(chang)絲的(de)斷裂強(qiang)度(du)(du)為4.5~5.5克/旦(dan)(dan),短纖(xian)(xian)維(wei)(wei)為3.5~5.5克/旦(dan)(dan)。長(chang)絲的(de)斷裂伸(shen)長(chang)率(lv)為15~25%,短纖(xian)(xian)維(wei)(wei)為25~40%。高強(qiang)型(xing)纖(xian)(xian)維(wei)(wei)強(qiang)度(du)(du)可達7~8克/旦(dan)(dan),伸(shen)長(chang)為7.5~12.5%。滌綸(lun)有(you)(you)(you)優良(liang)的(de)耐(nai)皺性、彈性和尺寸穩定性,有(you)(you)(you)良(liang)好(hao)的(de)電絕緣性能(neng),耐(nai)日光,耐(nai)摩擦,不霉不蛀,有(you)(you)(you)較(jiao)好(hao)的(de)耐(nai)化學(xue)試劑性能(neng),能(neng)耐(nai)弱酸(suan)及弱堿(jian)。在(zai)(zai)(zai)室溫(wen)下(xia),有(you)(you)(you)一(yi)定的(de)耐(nai)稀強(qiang)酸(suan)的(de)能(neng)力(li),耐(nai)強(qiang)堿(jian)性較(jiao)差。滌綸(lun)的(de)染色性能(neng)較(jiao)差,一(yi)般須在(zai)(zai)(zai)高溫(wen)或有(you)(you)(you)載體(ti)存(cun)在(zai)(zai)(zai)的(de)條件下(xia)用分(fen)散性染料染色。
2、用途
滌(di)(di)綸(lun)具(ju)有許多優良(liang)的紡織(zhi)性(xing)(xing)能和服(fu)用(yong)(yong)性(xing)(xing)能,用(yong)(yong)途(tu)廣泛,可以純(chun)紡織(zhi)造,也可與棉(mian)、毛、絲、麻(ma)等(deng)(deng)天(tian)然纖維(wei)和其他化學纖維(wei)混紡交織(zhi),制(zhi)成花色繁多、堅(jian)牢挺括、易(yi)洗(xi)易(yi)干、免燙和洗(xi)可穿性(xing)(xing)能良(liang)好的仿(fang)毛、仿(fang)棉(mian)、仿(fang)絲、仿(fang)麻(ma)織(zhi)物。滌(di)(di)綸(lun)織(zhi)物適用(yong)(yong)于(yu)男女(nv)襯衫(shan)、外衣、兒童(tong)衣著(zhu)、室(shi)內裝飾織(zhi)物和地毯(tan)等(deng)(deng)。由(you)于(yu)滌(di)(di)綸(lun)具(ju)有良(liang)好的彈性(xing)(xing)和蓬松性(xing)(xing),也可用(yong)(yong)作(zuo)絮棉(mian)。在工業上高強度滌(di)(di)綸(lun)可用(yong)(yong)作(zuo)輪(lun)胎(tai)簾(lian)子線(xian)、運(yun)輸(shu)帶、消防水管、纜繩、漁網等(deng)(deng),也可用(yong)(yong)作(zuo)電絕緣材料、耐酸過濾布(bu)和造紙毛毯(tan)等(deng)(deng)。用(yong)(yong)滌(di)(di)綸(lun)制(zhi)作(zuo)無紡織(zhi)布(bu)可用(yong)(yong)于(yu)室(shi)內裝飾物、地毯(tan)底布(bu)、醫藥(yao)工業用(yong)(yong)布(bu)、絮絨、襯里等(deng)(deng)。
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