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首页> 外文期刊>Journal of Industrial Textiles >Water-proof Breathable Coatingsrnbased On Poly (vinyl Alcohol) Forrncellulosic Fabric
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Water-proof Breathable Coatingsrnbased On Poly (vinyl Alcohol) Forrncellulosic Fabric

机译：聚乙烯醇纤维素纤维织物防水透气涂料

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摘要

Hydrophilic breathable coatings were developed by coating the cotton fabric with poly(vinyl alcohol) (PVA) solution (20 wt%) containing poly(acrylic acid) (PAAc) (10% neutralized using sodium hydroxide) as a cross-linker, followed by drying and curing. The effect of cross-linker concentration and add-on on the properties of coated textile was studied. The coated substrate with the combination of molar ratio of PVA to PAAc of 25 and coating add-on of 18 wt% was found to have high integrity with the optimum breathable properties. This sample showed high resistance to hydrostatic head at 1400 mm and very high water vapor transmission rate (WVTR) at 2165 g/m~2 24 h, which was ～50% of the WVTR value shown by the uncoated substrate (cotton fabric). Physical investigation of the surface morphology showed that the coating was continuous without cracks or pin holes and appeared to be well adhered to the substrate even after a harsh wash.
机译：亲水透气涂层的开发方法是，在棉织物上涂上一层含聚丙烯酸（PAAc）（用氢氧化钠中和的10％）作为交联剂的聚乙烯醇（PVA）溶液（20 wt％），然后干燥和固化。研究了交联剂浓度和添加量对涂层织物性能的影响。发现具有25的PVA与PAAc的摩尔比和18wt％的涂料添加量的组合的涂布的基材具有高的完整性和最佳的透气性。该样品在1400 mm时表现出较高的静水压头性能，在2165 g / m〜2 24 h时具有很高的水蒸气透过率（WVTR），约为未涂层基材（棉织物）显示的WVTR值的〜50％。对表面形态的物理研究表明，涂层是连续的，没有裂纹或针孔，即使经过严格的洗涤也似乎很好地粘附在基材上。

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