CN114456698A - 一种聚氨酯海绵防水膜 - Google Patents
一种聚氨酯海绵防水膜 Download PDFInfo
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Abstract
本发明公开了一种聚氨酯海绵防水膜,由如下重量份组成:80～100份聚醚多元醇、40～50份甲苯二异氰酸酯、40～50份环氧大豆油、0.1～0.2份二月桂酸二丁基锡、0.1～0.2份三乙烯二胺催化剂、聚乙烯醇0.2～0.4份、三乙醇胺0.1～0.3份、2～4份硅烷偶联剂、表面活性剂聚乙二醇0.2～0.6份、填料纳米二氧化硅2～6份、聚醚改性聚硅氧烷0.1～0.3份、分散剂0.02～0.04份木质素磺酸钙和1～2份成膜助剂丙二醇；本发明将产品涂料均匀的涂抹在海绵上干燥成膜，此海绵能够避免自固化或沉降，且具有较高的防水性能。
Description
技术领域
本发明涉及聚氨酯膜技术领域，具体地说尤其涉及一种聚氨酯海绵防水膜。
背景技术
聚氨酯制备工艺和条件的不同或基团分子的组合差异，其性能质量体现出明显的差别，现有的普同海绵产品存在防水效果差，涂层不均匀，表面不光洁的缺点。使用潜固化剂固化方式，无需添加溶剂，降低了对环境的污染。
发明内容
本发明的目的在于提出一种聚氨酯海绵防水膜，以解决上述背景技术中提出的问题。
为实现上述目的，本发明通过如下技术手段实现：
一种聚氨酯海绵防水膜,由如下重量份组成:80～100份聚醚多元醇、40～50份甲苯二异氰酸酯、40～50份环氧大豆油、0.1～0.2份二月桂酸二丁基锡、0.1～0.2份三乙烯二胺催化剂、聚乙烯醇0.2～0.4份、三乙醇胺0.1～0.3份、2～4份硅烷偶联剂、表面活性剂聚乙二醇0.2～0.6份、填料纳米二氧化硅2～6份、聚醚改性聚硅氧烷0.1～0.3份、分散剂0.02～0.04份木质素磺酸钙和1～2份成膜助剂丙二醇。
进一步地，所述的聚醚多元醇为40～50份聚己二酸丁二醇酯二醇、40～50份聚氧化丙烯二醇。
进一步地，所述的潜固化剂为醛亚胺。
进一步地，所述的催化剂添加比例为1:1。
进一步地，所述的有机硅树脂为聚硅氧烷树脂。
与现有技术相比，本发明具有如下有益效果：
本发明选用环氧大豆油调整PU的粘度；选用二月桂酸二丁基锡和三乙烯二胺作为催化剂起协同催化的作用，可以大幅提高反应活性，减少催化剂用量，从而降低成本；选用聚乙醇烯能够提高膜表面的稳定性，赋予触变性能；选用聚乙二醇可以改进树脂的分散性，柔韧性，从而提高防水性能；选用三乙醇胺能够缩短防水层形成时间，增强早期强度，且有助于涂膜实现快速防水功效；选用木质素磺酸钙可以提高防水涂料的施工性能，改善涂膜的柔韧性；选用聚醚改性硅氧烷可以减低涂膜表面张力，防止形成泡沫，从而提高涂膜的耐久性能；选用纳米二氧化硅填充在涂膜，可以快速形成网状结构，提高涂膜的耐老化能力，从而提高涂膜的耐久性能；选用丙二醇为成膜助剂，不但可以有效降低成膜温度，而且还对涂膜的流动性，均匀性和稳定性起到重要作用，本发明以聚醚多元醇、甲苯二异氰酸酯、环氧大豆油、潜固化剂、二月桂酸二丁基锡、三乙烯二胺催化剂、聚乙烯醇、聚醚改性聚硅氧烷硅烷偶联剂、表面活性剂、填料、分散剂、成膜助剂、为原料制得的防水涂料，将本发明产品涂料均匀的涂抹在海绵上干燥成膜，此海绵能够避免自固化或沉降，且具有较高的防水性能。此外，以潜固化剂后固化方式制备聚氨酯防水涂层，无需添加溶剂，降低了环境污染。
具体实施方式：
为了使本领域的技术人员更好地理解本发明的技术方案，下面结合实施例对本发明作进一步说明：
具体实施例
为本发明的其中一种具体实施方式：
在本实施例中，一种聚氨酯海绵防水膜,由如下重量份组成:80～100份聚醚多元醇、40～50份甲苯二异氰酸酯、40～50份环氧大豆油、0.1～0.2份二月桂酸二丁基锡、0.1～0.2份三乙烯二胺催化剂、聚乙烯醇0.2～0.4份、三乙醇胺0.1～0.3份、2～4份硅烷偶联剂、表面活性剂聚乙二醇0.2～0.6份、填料纳米二氧化硅2～6份、聚醚改性聚硅氧烷0.1～0.3份、分散剂0.02～0.04份木质素磺酸钙和1～2份成膜助剂丙二醇。
实施例一：
80份聚醚多元醇、40份甲苯二异氰酸酯、40份环氧大豆油、0.1份二月桂酸二丁基锡、0.1份三乙烯二胺催化剂、0.2份聚乙烯醇、0.1份三乙醇胺、2份硅烷偶联剂、0.25份聚乙二醇、2份纳米二氧化硅、0.2份聚醚改性聚硅氧烷、0.02份木质素磺酸钙和1份丙二醇。
实施例二：
80份聚醚多元醇、40份甲苯二异氰酸酯、45份环氧大豆油、0.1份二月桂酸二丁基锡、0.1份三乙烯二胺催化剂、0.2份聚乙烯醇、0.1份三乙醇胺、2份硅烷偶联剂、0.25份聚乙二醇、2份纳米二氧化硅、0.2份聚醚改性聚硅氧烷、0.02份木质素磺酸钙和1份丙二醇。
实施例三：
100份聚醚多元醇、50份甲苯二异氰酸酯、50份环氧大豆油、0.1份二月桂酸二丁基锡、0.1份三乙烯二胺催化剂、0.2份聚乙烯醇、0.1份三乙醇胺、2份硅烷偶联剂、0.25份聚乙二醇、2份纳米二氧化硅、0.2份聚醚改性聚硅氧烷、0.02份木质素磺酸钙和1份丙二醇。
表一为本发明实施例相应产品性能实验数据
本发明所公开具体实施例落入本发明权利要求保护范围之内，为本发明的特征部分的具体下位实施范围，具体实施例保护内容仅仅是为本发明权利要求保护范围的说明，本发明保护范围不止于具体实施例保护内容，具体实施例保护内容不应理解为对本发明权利要求保护范围的限制。
Claims (5)
1.一种聚氨酯海绵防水膜，其特征在于：由如下重量份组成:80～100份聚醚多元醇、40～50份甲苯二异氰酸酯、40～50份环氧大豆油、0.1～0.2份二月桂酸二丁基锡、0.1～0.2份三乙烯二胺催化剂、聚乙烯醇0.2～0.4份、三乙醇胺0.1～0.3份、2～4份硅烷偶联剂、表面活性剂聚乙二醇0.2～0.6份、填料纳米二氧化硅2～6份、聚醚改性聚硅氧烷0.1～0.3份、分散剂0.02～0.04份木质素磺酸钙和1～2份成膜助剂丙二醇。
2.根据权利要求1所述的一种聚氨酯海绵防水膜，其特征在于：所述的聚醚多元醇为40～50份聚己二酸丁二醇酯二醇、40～50份聚氧化丙烯二醇。
3.根据权利要求1所述的一种聚氨酯海绵防水膜，其特征在于：所述的潜固化剂为醛亚胺。
4.根据权利要求1所述的一种聚氨酯海绵防水膜，其特征在于：所述的催化剂添加比例为1:1。
5.根据权利要求1所述的一种聚氨酯海绵防水膜，其特征在于：所述的有机硅树脂为聚硅氧烷树脂。
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