CN104894874B - 一种防风透气透湿的涂料的制备方法 - Google Patents
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Abstract
本发明涉及一种防风透气型涂料的制备方法，该涂料的制备包括如下两个主要步骤：1将按比例的乙烯基聚有机硅氧烷、纳米二氧化硅、硅氮烷和乙醇在高剪切混合机中混合1‑2h，200℃真空下处理后冷却至室温得到均匀混合物。加入热膨胀微胶囊和催化剂氯铂酸，然后过滤得到组分A；2将上述比例的木质纤维素加入反应釜中，然后加入硫酸钡粉末和硅藻土搅拌混合均匀，先超声分散后球磨分散，然后加入组分A之外的其它剩余组成原料，搅拌均匀得到组分B；再将A、B组分混合经过超声分散和球磨分散制得防潮抗老化型涂料。利用该涂料涂覆织物表面时织物和聚氨酯复合膜不分层，聚氨酯薄膜层具有优异的防风透气透湿效果，同时织物手感良好。
Description
技术领域
本发明属于叠压面料制造领域，具体涉及一种防风透气透湿的涂料的制备方法。
背景技术
经双向拉伸的聚四氟乙烯微孔薄膜防风透气透湿层压织物是集防风透气、透湿、防风和防化等功能于一身的高科技产品，该层压织物广泛用于户外运动服、休闲服、防风透气透湿鞋等领域。薄膜的微结构是由“原纤-结点”组成，薄膜厚度为5～80微米，孔径0.1～5微米，每平方英寸上约有90亿个微孔，开孔率高达80％以上。由于聚四氟乙烯薄膜的比表面积大，易吸附粉尘、人体汗液中的盐分、油脂以及化妆品等物质，洗涤剂也易残留在孔内，致使防风透气性下降。因此，在聚四氟乙烯薄膜上涂覆具有湿气高度透过性的聚氨酯制备复合膜是目前解决以上问题的主要途径。目前已经公开了多种制备聚四氟乙烯和聚氨酯复合膜的方法。
发明专利ZL03100830.5和Z1200510061827.4公开一种采用热熔法片状挤出热塑性聚氨酯，流延到聚四氟乙烯基带上，最后进行共拉伸和固化制备复合膜的方法。发明专利ZL03100829.1公开了一种复合膜制备方法，将聚氨酯溶液涂覆在离型纸上，再将经双向拉伸的聚四氟乙烯微孔薄膜与涂覆有聚氨酯溶液的离型纸贴合，使用压力设备加压后烘干，烘干后将离型纸与聚四氟乙烯微孔薄膜剥离，获得聚氨酯和聚四氟乙烯双向弹性薄膜。
但聚四氟乙烯的表面张力低，难以和其他材料较好的结合在一起，致使聚四氟乙烯薄膜和聚氨酯间容易在使用过程中分层。采用上述方法制备的聚四氟乙烯薄膜和聚氨酯两种不同材料间难以融合，之间的剥离强度较低，容易分层。
发明内容
本发明要解决的技术问题在于提供一种防风透气透湿的涂料的制备方法，利用该涂料涂覆织物表面时织物和聚氨酯复合膜不分层，聚氨酯薄膜层具有优异的防风透气透湿效果，同时织物手感良好。
本发明解决其技术问题所采用的技术方案是：一种防风透气型涂料的制备方法，其主要组成原料的重量份为：聚醚型耐水解聚氨酯树脂30-40、乙烯基聚有机硅氧烷 30-45、含氢硅油 10-14、膨胀蛭石 5-8、热膨胀微胶囊 1-10、催化剂氯铂酸0.5-1，硅氮烷0.4-0.5、十二烷基硫酸钠1.5-1.6、植物胶1-2、耐磨剂0.5-0.8、硫酸钡粉末43-45、木质纤维素6-8、硅烷偶联剂3.5-4.5、硅藻土1-3、抑制剂10-12、纳米二氧化硅 3-5、钛白粉 5-7、紫外光稳定剂 3-10和乙醇25-30；所述热膨胀微胶囊是在热塑性树脂的球壳里含一种挥发性物质加热膨胀得到的；其中，所述球壳的成分包括聚乙烯、聚苯乙烯、聚丁二烯、聚醋酸乙烯酯、氯丁橡胶和其它乙烯基低聚合物的共聚物中的一种或几种，所述热膨胀微胶囊中挥发性物质包括丁烷、异丁烷、丙烷、二氯乙烷等中的一种或几种；该涂料的制备包括如下两个主要步骤：
（1）将乙烯基聚有机硅氧烷、纳米二氧化硅、硅氮烷和乙醇在高剪切混合机中混合1-2h，200℃真空下处理后冷却至室温得到均匀混合物。加入热膨胀微胶囊和催化剂氯铂酸，然后过滤得到组分A;
（2）将木质纤维素加入反应釜中，然后加入硫酸钡粉末和硅藻土搅拌混合均匀，先超声分散 15-20min 后球磨分散15-20h，然后加入组分A之外的其它剩余组成原料，搅拌均匀得到组分B；再将A、B组分混合经过超声分散25-35min 和球磨分散4-6h制得透气型涂料。
进一步地，所述热膨胀微胶囊直径膨胀前在5.0-15微米范围内，膨胀后在20-50微米范围。
进一步地，所述纳米二氧化硅的比表面积至少要200m2/g。
本发明取得的有益效果
本发明公开的复合涂料可以采取刀刮涂布的生产工艺，通过刮刀涂在纺织品布的正反面上，得到的性能良好的防风布材料，应用在防风用品制造和遮光材料领域。本发明公开的复合涂料对PET、PE纺织品布有良好的附着力，同时用这种复合涂料涂层的PET纺织品布具有良好的耐水性，耐水压可以达7000～9000mm水柱。配方中的热膨胀微胶囊和膨胀蛭石有效的提高涂料的防风透气、抗渗漏、减少空鼓开裂；而且本发明通过对液态聚有机硅氧烷的改性，可以提高涂层的防风透气性，增强浆料的使用性，便于涂覆在织物上。
具体实施方式
以下结合具体实施例来对本发明作进一步的描述，但本发明所要求保护的范围并不局限于实施例所描述之范围。
实施例1
一种防风透气型涂料的制备方法，其主要组成原料的重量份为：聚醚型耐水解聚氨酯树脂30、乙烯基聚有机硅氧烷 30、含氢硅油 10、膨胀蛭石 5、热膨胀微胶囊 1、催化剂氯铂酸0.5，硅氮烷0.4、十二烷基硫酸钠1.5、植物胶1、耐磨剂0.5、硫酸钡粉末43、木质纤维素6、硅烷偶联剂3.5、硅藻土1、抑制剂10、纳米二氧化硅 3、钛白粉 5、紫外光稳定剂 3和乙醇25；所述热膨胀微胶囊是在热塑性树脂的球壳里含一种挥发性物质加热膨胀得到的，其中，所述球壳的成分包括聚乙烯、聚苯乙烯、聚丁二烯、聚醋酸乙烯酯、氯丁橡胶和其它乙烯基低聚合物的共聚物中的一种或几种，所述热膨胀微胶囊中挥发性物质包括丁烷、异丁烷、丙烷、二氯乙烷等中的一种或几种；该涂料的制备包括如下两个主要步骤：
（1）将上述比例的乙烯基聚有机硅氧烷、纳米二氧化硅、硅氮烷和乙醇在高剪切混合机中混合1-2h，200℃真空下处理后冷却至室温得到均匀混合物。加入热膨胀微胶囊和催化剂氯铂酸，然后过滤得到组分A。
（2）将上述比例的木质纤维素加入反应釜中，然后加入硫酸钡粉末和硅藻土搅拌混合均匀，先超声分散 15-20min 后球磨分散15-20h，然后加入组分A之外的其它剩余组成原料，搅拌均匀得到组分B；再将A、B组分混合经过超声分散25-35min 和球磨分散4-6h制得防潮抗老化型涂料。所述热膨胀微胶囊直径膨胀前在5.0-15微米范围内，膨胀后在20-50微米范围。所述纳米二氧化硅的比表面积至少要200m2/g。
实施例2
一种防风透气型涂料的制备方法，其主要组成原料的重量份为：聚醚型耐水解聚氨酯树脂40、乙烯基聚有机硅氧烷 45、含氢硅油 14、膨胀蛭石 8、热膨胀微胶囊 10、催化剂氯铂酸1，硅氮烷0.5、十二烷基硫酸钠1.6、植物胶2、耐磨剂0.8、硫酸钡粉末45、木质纤维素8、硅烷偶联剂4.5、硅藻土3、抑制剂12、纳米二氧化硅5、钛白粉 7、紫外光稳定剂 10和乙醇30；所述热膨胀微胶囊是在热塑性树脂的球壳里含一种挥发性物质加热膨胀得到的，其中，所述球壳的成分包括聚乙烯、聚苯乙烯、聚丁二烯、聚醋酸乙烯酯、氯丁橡胶和其它乙烯基低聚合物的共聚物中的一种或几种，所述热膨胀微胶囊中挥发性物质包括丁烷、异丁烷、丙烷、二氯乙烷等中的一种或几种；该涂料的制备包括如下两个主要步骤：
（1）将上述比例的乙烯基聚有机硅氧烷、纳米二氧化硅、硅氮烷和乙醇在高剪切混合机中混合1-2h，200℃真空下处理后冷却至室温得到均匀混合物。加入热膨胀微胶囊和催化剂氯铂酸，然后过滤得到组分A。
（2）将上述比例的木质纤维素加入反应釜中，然后加入硫酸钡粉末和硅藻土搅拌混合均匀，先超声分散 15-20min 后球磨分散15-20h，然后加入组分A之外的其它剩余组成原料，搅拌均匀得到组分B；再将A、B组分混合经过超声分散25-35min 和球磨分散4-6h制得防潮抗老化型涂料。所述热膨胀微胶囊直径膨胀前在5.0-15微米范围内，膨胀后在20-50微米范围。所述纳米二氧化硅的比表面积至少要200m2/g。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本领域的技术人员在本发明所揭露的技术范围内，可不经过创造性劳动想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求书所限定的保护范围为准。
Claims (2)
1.一种防风透气透湿的涂料的制备方法，其特征在于，其主要组成原料的重量份为：聚醚型耐水解聚氨酯树脂30-40、乙烯基聚有机硅氧烷 30-45、含氢硅油 10-14、膨胀蛭石 5-8、热膨胀微胶囊 1-10、催化剂氯铂酸0.5-1，硅氮烷0.4-0.5、十二烷基硫酸钠1.5-1.6、植物胶1-2、耐磨剂0.5-0.8、硫酸钡粉末43-45、木质纤维素6-8、硅烷偶联剂3.5-4.5、硅藻土1-3、抑制剂10-12、纳米二氧化硅 3-5、钛白粉 5-7、紫外光稳定剂 3-10和乙醇25-30；所述热膨胀微胶囊是在热塑性树脂的球壳里含一种挥发性物质加热膨胀得到的；其中，所述球壳的成分包括聚乙烯、聚苯乙烯、聚丁二烯、聚醋酸乙烯酯、氯丁橡胶和其它乙烯基低聚合物的共聚物中的一种或几种，所述热膨胀微胶囊中挥发性物质包括丁烷、异丁烷、丙烷、二氯乙烷等中的一种或几种；该涂料的制备包括如下两个主要步骤：
（1）将乙烯基聚有机硅氧烷、纳米二氧化硅、硅氮烷和乙醇在高剪切混合机中混合1-2h，200℃真空下处理后冷却至室温得到均匀混合物，加入热膨胀微胶囊和催化剂氯铂酸，然后过滤得到组分A；
（2）将木质纤维素加入反应釜中，然后加入硫酸钡粉末和硅藻土搅拌混合均匀，先超声分散 15-20min 后球磨分散15-20h，然后加入组分A之外的其它剩余组成原料，搅拌均匀得到组分B；再将A、B组分混合经过超声分散25-35min 和球磨分散4-6h制得透气型涂料；所述热膨胀微胶囊直径膨胀前在5.0-15微米范围内，膨胀后在20-50微米范围，用这种涂料涂层的PET纺织品布具有良好的耐水性，耐水压可以达7000～9000mm水柱。
2.根据权利要求1所述的制备方法，其特征在于，所述纳米二氧化硅的比表面积至少要200m2/g。
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