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无纺土工布的介绍

   2024-05-08 2990

土工布分为有纺土工布和无纺土工布 ,今天讲解一下无纺土工布

无纺土工布采用诸如纤维素一类天然高聚物为原料,经过化学方法而制得的纤维,粘胶纤维是再生纤维素纤维,几乎全部由纤维素组成。早期的无纺土工布都是长丝,称粘胶丝,也可切断成短纤维,有棉型粘胶纤维和毛型粘胶纤维,早期制织航空降落伞用的丝绸常以粘胶丝为原料。

无纺土工布有很多优点:(1)通气性(2)过滤性(3)保温性(4)吸水性(5)防水性(6)伸缩性(7)不蓬乱(8)手感好、柔软(9)轻盈(10)有弹性、可复原(11)没有布料的方向性(12)与纺织布相比生产性高、生产速度快(13)价格低、可大量生产等等。

缺点是:(1)与纺织布相比强度和耐久性较差;(2)不能象其他布料一样清洗;(3)纤维按一定方向排列、所以容易从直角方向裂开等等。因此最近生产方法的改善主要放在防止分裂的改良上。



 
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