拜耳研发新款交联剂 用于热敏纺织涂料
发布日期：2013-03-25
阅读量：1994
在聚氨酯分散体Imprafix®2794XP的基础上，拜耳材料科技研发了用于热敏纺织纤维涂料的高性能交联剂。比如说弹性聚酰胺纤维，这种纤维最常用于泳衣和运动衣，当然也用于外套、内衣、裤袜和鞋子。分散体里面的阻滞剂有助于剂型的长期储存，也就是说基本上在未使用之前可以一直储存。而另一方面，只需125度就可以完成解封并开始交联过程。因此这种剂型可以在不损害弹性聚酰胺纤维的情况下，覆盖其表面。传统的交联剂使用温度是150度，这样对导致纺织纤维的弹性减弱。
在Impranil®聚氨酯分散体和新的聚异氰酸酯分散体基础上生产的涂料对纺织物的粘性极好。它们改善了纺织物的抗划伤和抗磨损能力。这些涂料的抗干洗能力也很强。
新的交联剂在纺织业之外的应用中也有优势。香水瓶或是高级餐厅的玻璃器皿的涂层烘烤往往是在超过180度的高温下进行的。以前传统的交联剂，如果在这样的温度下解封会出现明显地黄化现象。
Imprafix®2794XP也可用于替代汽车涂层中的其他聚异氰酸酯交联剂。
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