CN106113833A - 耐磨微孔型聚氨酯复合膜 - Google Patents

耐磨微孔型聚氨酯复合膜 Download PDF

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CN106113833A
CN106113833A CN201610478036.XA CN201610478036A CN106113833A CN 106113833 A CN106113833 A CN 106113833A CN 201610478036 A CN201610478036 A CN 201610478036A CN 106113833 A CN106113833 A CN 106113833A
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CN106113833B (zh
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张子睿
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Kunshan Huayang New Material Ltd Co
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Abstract

本发明公开一种耐磨微孔型聚氨酯复合膜，包括微孔型聚氨酯薄膜、聚四氟乙烯薄膜，所述微孔型聚氨酯薄膜、聚四氟乙烯薄膜之间通过胶粘层粘合，所述聚四氟乙烯薄膜每平方英寸孔洞的数目为85~95亿个，孔洞的平均直径为0.2um~10um；所述微孔型聚氨酯薄膜由预制聚氨酯浆料刮涂于硅油离型纸上并依次在80~150度温度梯度的烘箱烘烤，当达到150度并保温后再降温至常温获得。本发明耐磨微孔型聚氨酯复合膜提高了弹性和适应性，具有高强度、不吸水、耐磨性能，同时提高了耐温性能。

Description

耐磨微孔型聚氨酯复合膜
技术领域
本发明涉及一种耐磨微孔型聚氨酯复合膜，属于纺织面料技术领域。
背景技术
近年来聚氨酯薄膜越来越多地应用于成衣和时装的制备，采用透气的聚氨酯薄膜材料制备的服装不仅具有呼吸功能，还能够抗静电；聚氨酯薄膜在运动服装和制品中用制作潜水衣、游泳衣、韵律衣及空气降落衣、充气水床、球内胆、皮划艇、救生圈等面料及内里材料。新开发的形状记忆聚氨酯薄膜，具有良好结晶性，嵌段聚集成微区起物理交联点的作用，控制形状记忆聚氨酯的形状固定和恢复，将这些形状记忆聚氨酯的形状记忆温度定为室温，用于生产复合织物，作为家居服饰面料，在室温以下可以起到保暖作用，在室温以上可以具有良好透湿性能。热塑性聚氨醋薄膜具有柔软手感好，强度高，防风透气，绿色环保等突出特点而广泛应用于纺织复合面料，用于运动休闲，特种防护等领域。现有技术的聚氨酯薄膜多为亲水型的薄膜，其防水性较差，表现为遇水膨胀，此外其透气性也较差。
发明内容
本发明目的是提供一种耐磨微孔型聚氨酯复合膜，该耐磨微孔型聚氨酯复合膜提高了弹性和适应性，具有高强度、不吸水、耐磨性能，同时提高了耐温性能。
为达到上述目的，本发明采用的技术方案是：一种耐磨微孔型聚氨酯复合膜，包括微孔型聚氨酯薄膜、聚四氟乙烯薄膜，所述微孔型聚氨酯薄膜、聚四氟乙烯薄膜之间通过胶粘层粘合，所述聚四氟乙烯薄膜每平方英寸孔洞的数目为85~95亿个，孔洞的平均直径为0.2um~10um；
所述微孔型聚氨酯薄膜由预制聚氨酯浆料刮涂于硅油离型纸上并依次在80~150度温度梯度的烘箱烘烤，当达到150度并保温后再降温至常温获得；
所述预制聚氨酯浆料由以下组分组成：
聚氨酯树脂 100份，
二甲基甲酰胺 20~25份，
甲苯 32 ~35份，
丁酮 12~15份，
热膨胀微球 8~9份，
1，4一丁二醇 1.5~2.5份，
聚丙烯酰胺 1.2~1.8份，
丙烯酸酯 0.3~0.5份，
有机硅氧烷乳液 0.2~0.3份；
所述胶粘层由以下组分组成：
聚氨酯树脂 100份，
二甲基甲酰胺 12~15份，
甲苯（TOL） 4~6份，
乙酸乙酯 7~9份，
热膨胀微球 4~6份，
桥架剂 0.2~0.4份，
促进剂 0.15~0.25份，
硅烷偶联剂 1.2~2份；
所述80~150度温度梯度的烘箱烘烤具体包括以下阶段：
所述第一阶段：在80℃的条件下，空气氛围下进行；
第二阶段：在90℃的条件下，空气氛围下进行；
第三阶段：在110℃的条件下，空气氛围下进行；
第四阶段：在140℃的条件下，空气氛围下进行。
上述技术方案中进一步改进的技术方案如下：
作为优选，所述聚四氟乙烯薄膜中孔洞的体积占聚四氟乙烯薄膜体积的80~90%。
作为优选，所述聚四氟乙烯薄膜和微孔型聚氨酯薄膜之间的质量比为1：6.5~7，厚度比为1：0.3~0.6。
作为优选，所述80~150度温度梯度的烘箱烘烤具体包括以下阶段：
所述第一阶段：在80℃的条件下，且在低速流动的空汽氛围下进行；
第二阶段：在90℃的条件下，且在中速流动的空汽氛围下进行；
第三阶段：在110℃的条件下，且在强速流动的空汽氛围下进行；
第四阶段：在140℃的条件下，且在低速流动的空汽氛围下进行。
作为优选，所述热膨胀微球为akzonobel公司热膨胀微球，其具有弹性的壳内含有异丁烷、丙烷、戊烷等低沸点物质。
由于上述技术方案运用，本发明与现有技术相比具有下列优点和效果：
1. 本发明耐磨微孔型聚氨酯复合膜，在可以避免由于微孔型聚四氟乙烯薄膜层吸附空汽中的粉尘、汗液中的盐份、油脂化妆品以及洗涤剂等物质，实现了长时间地保持稳定的防水和排汗汽性能；其次，结合了具有聚氨酯层和聚四氟乙烯薄膜层，在提高对外的阻止雨水性能的同时，有增强了对内排出人体汗汽的性能，使得织物面料具有更佳舒适性能和更广阔的应用范围；再次，由于这种双组份薄膜材料具有大量均匀的孔洞，以及具有亲水拒油的型的微孔聚氨酯树脂层，从而更有利于来自人体水蒸汽的排出，大大降低了残留聚氨酯薄膜层表面的水分含量，从而提高了涂层面料的耐磨性且穿着干爽，最主要的是大大提高了聚四氟乙烯薄膜材料的弹性，使服装衣服在高强运动和极端条件下也具有良好的力学性能。
2. 本发明耐磨微孔型聚氨酯复合膜，针对与聚四氟乙烯薄膜的特定组合，优化了微孔型聚氨酯薄膜的配方，从而提高了弹性和适应性，同时具有高强度、不吸水、耐磨性能；其次，本发明采用特定粘合剂配方上述溶剂和硅烷偶联剂的选择能够使粘合剂和聚四氟乙烯薄膜之间具有更好的粘合性能，同时提高了耐温性能，耐寒可达-150℃以下，耐热可达+150℃，（ISO 2136标准）耐曲折9000次无裂。
具体实施方式
下面结合实施例对本发明作进一步描述：
实施例1： 一种耐磨微孔型聚氨酯复合膜，包括微孔型聚氨酯薄膜、聚四氟乙烯薄膜，所述微孔型聚氨酯薄膜、聚四氟乙烯薄膜之间通过胶粘层粘合，所述聚四氟乙烯薄膜每平方英寸孔洞的数目为85~95亿个，孔洞的平均直径为0.2um~10um；
所述微孔型聚氨酯薄膜由预制聚氨酯浆料刮涂于硅油离型纸上并依次在80~150度温度梯度的烘箱烘烤，当达到150度并保温后再降温至常温获得；
所述预制聚氨酯浆料由以下组分组成：
聚氨酯树脂 100份，
二甲基甲酰胺 22份，
甲苯 32份，
丁酮 13份，
热膨胀微球 8.5份，
1，4一丁二醇 1.8份；
聚丙烯酰胺 1.5份；
丙烯酸酯 0.35份，
有机硅氧烷乳液 0.25份。
所述胶粘层由以下组分组成：
聚氨酯树脂 100份，
二甲基甲酰胺 12份，
甲苯（TOL） 5份，
乙酸乙酯 8份，
热膨胀微球 5份，
桥架剂 0.3份，
促进剂 0.2份，
硅烷偶联剂 1.5份。
上述聚四氟乙烯薄膜中孔洞的体积占聚四氟乙烯薄膜体积的80~82%。
上述聚四氟乙烯薄膜2和微孔型聚氨酯薄膜1之间的质量比为1：6.5~7，厚度比为1：0.3~0.6。
上述80~150度温度梯度的烘箱烘烤具体包括以下阶段：
所述第一阶段：在80℃的条件下，且在低速流动的空汽氛围下进行；
第二阶段：在90℃的条件下，且在中速流动的空汽氛围下进行；
第三阶段：在110℃的条件下，且在强速流动的空汽氛围下进行；
第四阶段：在140℃的条件下，且在低速流动的空汽氛围下进行。
上述热膨胀微球为akzonobel公司热膨胀微球，其具有弹性的壳内含有异丁烷、丙烷、戊烷等低沸点物质。
实施例2：一种耐磨微孔型聚氨酯复合膜，包括微孔型聚氨酯薄膜、聚四氟乙烯薄膜，所述微孔型聚氨酯薄膜、聚四氟乙烯薄膜之间通过胶粘层粘合，所述聚四氟乙烯薄膜每平方英寸孔洞的数目为85~95亿个，孔洞的平均直径为0.2um~10um；
所述微孔型聚氨酯薄膜由预制聚氨酯浆料刮涂于硅油离型纸上并依次在80~150度温度梯度的烘箱烘烤，当达到150度并保温后再降温至常温获得；
所述预制聚氨酯浆料由以下组分组成：
聚氨酯树脂 100份，
二甲基甲酰胺 25份，
甲苯 35份，
丁酮 15份，
热膨胀微球 9份，
1，4一丁二醇 2.2份；
聚丙烯酰胺 1.8份；
丙烯酸酯 0.4份，
有机硅氧烷乳液 0.3份。
所述胶粘层由以下组分组成：
聚氨酯树脂 100份，
二甲基甲酰胺 15份，
甲苯 6份，
乙酸乙酯 9份，
热膨胀微球 4.5份，
桥架剂 0.25份，
促进剂 0.25份，
硅烷偶联剂 1.8份。
上述聚四氟乙烯薄膜中孔洞的体积占聚四氟乙烯薄膜体积的87~89%。
上述聚四氟乙烯薄膜2和微孔型聚氨酯薄膜1之间的质量比为1：6.5~7，厚度比为1：0.3~0.6。
上述热膨胀微球为akzonobel公司热膨胀微球，其具有弹性的壳内含有异丁烷、丙烷、戊烷等低沸点物质。
本发明具体指标数值如下：
a. 静水压值洗前>12000mmH2O，五次洗涤后>8000mmH2O（洗涤方法ISO 6330，测试方法ISO 811），
b. 透湿量：10000g/m2·24h（JIS 1099 A1），
c. 阻燃性通过（GB8965.2-2009）判定标准为B级，
d. 抗剥离强度（GB11042-89）：4N，
e. 耐寒可达-150℃以下，耐热可达+150℃，（ISO 2136标准）耐曲折9000次无裂，
f . 薄膜拉伸率25%，
g . 薄膜回复率96%，
h. 防风性能：完全防风（>10级），
i. 热阻抗 （GB/T 11048-2008 A法）：0.1097m²·K/W。
采用上述耐磨微孔型聚氨酯复合膜时，在可以避免由于微孔型聚四氟乙烯薄膜层吸附空汽中的粉尘、汗液中的盐份、油脂化妆品以及洗涤剂等物质，实现了长时间地保持稳定的防水和排汗汽性能；其次，结合了具有亲水拒油的聚氨酯层和聚四氟乙烯薄膜层，在提高对外的阻止雨水性能的同时，有增强了对内排出人体汗汽的性能，使得织物面料具有更佳舒适性能和更广阔的应用范围；再次，由于这种双组份薄膜材料具有大量均匀的孔洞，以及具有亲水拒油的型的微孔聚氨酯树脂层，从而更有利于来自人体水蒸汽的排出，大大降低了残留聚氨酯薄膜层表面的水分含量，从而提高了涂层面料的耐磨性且穿着干爽，最主要的是大大提高了聚四氟乙烯薄膜材料的弹性，使服装衣服在高强运动和极端条件下也具有良好的力学性能；其次，本发明采用特定粘合剂配方上述溶剂和硅烷偶联剂的选择能够使粘合剂和聚四氟乙烯薄膜之间具有更好的粘合性能，同时提高了耐寒性能，耐寒可达-150℃以下，耐热可达+150℃，（ISO 2136标准）耐曲折9000次无裂。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (3)

1.一种耐磨微孔型聚氨酯复合膜，其特征在于：包括微孔型聚氨酯薄膜、聚四氟乙烯薄膜，所述微孔型聚氨酯薄膜、聚四氟乙烯薄膜之间通过胶粘层粘合，所述聚四氟乙烯薄膜每平方英寸孔洞的数目为85~95亿个，所述孔洞的平均直径为0.2um~10um；
所述微孔型聚氨酯薄膜由预制聚氨酯浆料刮涂于硅油离型纸上并依次在80~150度温度梯度的烘箱烘烤，当达到150度并保温后再降温至常温获得；
所述预制聚氨酯浆料由以下组分组成：
聚氨酯树脂 100份，
二甲基甲酰胺 20~25份，
甲苯 32 ~35份，
丁酮 12~15份，
热膨胀微球 8~9份，
1，4一丁二醇 1.5~2.5份，
聚丙烯酰胺 1.2~1.8份，
丙烯酸酯 0.3~0.5份，
有机硅氧烷乳液 0.2~0.3份；
所述胶粘层由以下组分组成：
聚氨酯树脂 100份，
二甲基甲酰胺 12~15份，
甲苯（TOL） 4~6份，
乙酸乙酯 7~9份，
热膨胀微球 4~6份，
桥架剂 0.2~0.4份，
促进剂 0.15~0.25份，
硅烷偶联剂 1.2~2份；
所述80~150度温度梯度的烘箱烘烤具体包括以下阶段：
所述第一阶段：在80℃的条件下，空气氛围下进行；
第二阶段：在90℃的条件下，空气氛围下进行；
第三阶段：在110℃的条件下，空气氛围下进行；
第四阶段：在140℃的条件下，空气氛围下进行。
2.根据权利要求1所述的耐磨微孔型聚氨酯复合膜，其特征在于：所述聚四氟乙烯薄膜中孔洞的体积占聚四氟乙烯薄膜体积的80~90%。
3.根据权利要求1所述的耐磨微孔型聚氨酯复合膜，其特征在于：所述80~150度温度梯度的烘箱烘烤具体包括以下阶段：
所述第一阶段：在80℃的条件下，且在低速流动的空汽氛围下进行；
第二阶段：在90℃的条件下，且在中速流动的空汽氛围下进行；
第三阶段：在110℃的条件下，且在强速流动的空汽氛围下进行；
第四阶段：在140℃的条件下，且在低速流动的空汽氛围下进行。
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CN103932436A (zh) * 2014-04-02 2014-07-23 湖州森诺氟材料科技有限公司 一种具有防风透气功能的超薄休闲面料及其制备方法
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