CN115491114A - 一种硅烷改性单组分聚脲防水材料的制备方法 - Google Patents
一种硅烷改性单组分聚脲防水材料的制备方法 Download PDFInfo
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Abstract
本发明公开了一种硅烷改性单组分聚脲防水材料的制备方法,属于防水材料技术领域,按重量份由以下组分组成:低分量的聚二酸二胺500‑800份、硅烷改性多元醇400‑800份、溶剂150‑160、多异氰酸酯155‑162份和添加剂110‑120份。本发明中,通过合成的单组分聚脲防水材料制备的防水涂膜具有较高的断裂伸长率、拉伸强度和抗撕裂强度,所合成的单组分聚脲防水材料制备的防水涂膜具有良好的耐化学品性和耐盐雾性,更具有长的使用寿命,防水涂膜产品不是单纯靠潜固化促进剂进行固化,硅氧烷基水解自聚、异氰酸基吸水固化和潜固化促进剂吸潮下协同固化交联,能使其在较厚的涂时也能很好固化,且加入的添加剂能够进一步促进防水涂层的疏水性、热稳定性和抗酸碱腐蚀性。
Description
技术领域
本发明属于防水材料技术领域,尤其涉及一种硅烷改性单组分聚脲防水材料的制备方法。
背景技术
防水材料是建筑物的围护结构要防止雨水、雪水和地下水的渗透;要防止空气中的湿气、蒸汽和其他有害气体与液体的侵蚀;分隔结构要防止给排水的渗翻。这些防渗透、渗漏和侵蚀的材料统称。
聚脲技术是20世纪90年代中期在欧美发展起来的一种不含有机挥发物质的新型环保施工技术,该技术产物具有优异的物流性能和化学性能,施工效率高。聚脲一般采用双组份体系,分为喷涂聚脲和滚涂聚脲;双组份喷涂聚脲:两个组份经高压设施混合立刻喷涂在金属、混泥土或者各种复合材料上面,形成一层致密的防腐、防水功能涂层。随着各国研发人员的努力研究出了双组份天冬聚脲,可以滚涂也可以喷涂。通过市场不断应用,发现了目前双组份喷涂聚脲,在偏远工地,设备运输不方便,双组份天冬聚脲成本很高,因其粘结强度不够难以达到水电大坝防水要求,工程施工人员专业素养参差不齐,双组份产品使用时,经常出现混合不均匀,或忘记添加固化剂这情况,因此,开发经济型高强度高性能傻瓜式产品具有积极的意义。
基于此,本发明设计了一种硅烷改性单组分聚脲防水材料的制备方法,以解决上述问题。
发明内容
本发明的目的在于:为了解决目前双组份喷涂聚脲,在偏远工地,设备运输不方便,双组份天冬聚脲成本很高,因其粘结强度不够难以达到水电大坝防水要求,工程施工人员专业素养参差不齐,双组份产品使用时,经常出现混合不均匀,或忘记添加固化剂这情况的问题,而提出的一种硅烷改性单组分聚脲防水材料的制备方法。
为了实现上述目的,本发明采用了如下技术方案:
一种硅烷改性单组分聚脲防水材料的制备方法,按重量份由以下组分组成:低分量的聚二酸二胺500-800份、硅烷改性多元醇400-800份、溶剂150-160、多异氰酸酯155-162份和添加剂110-120份;
所述硅烷改性单组分聚脲防水材料的制备方法如下:
将低分量的聚二酸二胺、硅烷改性多元醇和溶剂加入到反应瓶中;
加入多异氰酸酯在氮气保护下反应2小时后,降温加入少量潜伏固化促进剂和添加剂,冷却出料。
作为上述技术方案的进一步描述:
所述硅烷改性多元醇分子量为5000-12000,所述硅烷改性多元醇的结构简式为:OH-R1(硅氧基)-OH,其中R1为聚醚链段或聚酯链段。
作为上述技术方案的进一步描述:
所述硅烷改性多元醇为GOH-520或者GOH-530。
作为上述技术方案的进一步描述:
所述聚二酸二胺分子量为1000-12000,所述聚二酸二胺优选聚己二酰己二胺。
作为上述技术方案的进一步描述:
所述多异氰酸酯选自TDI、MDI、IPDI、HDI和HMDI中的一种或多种。
作为上述技术方案的进一步描述:
所述潜伏固化促进剂为噁唑烷类。
作为上述技术方案的进一步描述:
所述添加剂的制备方法包括:
向化学反应釜中加入去离子水和十二烷基硫酸钠,控制化学反应釜上装配的磁搅拌机构运转;
待十二烷基硫酸钠完全溶解后,接着向化学反应釜中加入甲基丙烯酸钠、甲基丙烯酸六氟丁酯和过氧化二苯甲酰,持续搅拌28min后,对化学反应釜做水浴加热处理;
通过过滤洗涤技术去除化学反应釜中的十二烷基硫酸钠,得到白色的共聚物小珠;
将得到的白色共聚物小珠溶解在四氢呋喃中,接着加入甲醇和去离子水混合,沉淀制得添加剂。
作为上述技术方案的进一步描述:
所述十二烷基硫酸钠、甲基丙烯酸钠、甲基丙烯酸六氟丁酯、过氧化二苯甲酰和四氢呋喃需进过加压蒸馏处理去除阻聚剂。
作为上述技术方案的进一步描述:
所述将得到的白色共聚物小珠溶解在四氢呋喃中,接着加入甲醇和去离子水混合,重复操作四次。
作为上述技术方案的进一步描述:
所述沉淀制得添加剂后,采用滴涂法均匀涂覆在玻璃面板,于室温环境下干燥。
综上所述,由于采用了上述技术方案,本发明的有益效果是:
本发明中,通过合成的单组分聚脲防水材料制备的防水涂膜具有较高的断裂伸长率、拉伸强度和抗撕裂强度,所合成的单组分聚脲防水材料制备的防水涂膜具有良好的耐化学品性和耐盐雾性,更具有长的使用寿命,防水涂膜产品不是单纯靠潜固化促进剂进行固化,硅氧烷基水解自聚、异氰酸基吸水固化和潜固化促进剂吸潮下协同固化交联,能使其在较厚的涂时也能很好固化,且加入的添加剂能够进一步促进防水涂层的疏水性、热稳定性和抗酸碱腐蚀性。
附图说明
图1为本发明提出的一种硅烷改性单组分聚脲防水材料的制备方法的流程图;
图2为本发明提出的一种硅烷改性单组分聚脲防水材料的制备方法中添加剂的制备流程图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
实施例一
向化学反应釜中加入去离子水和十二烷基硫酸钠,控制化学反应釜上装配的磁搅拌机构运转;
待十二烷基硫酸钠完全溶解后,接着向化学反应釜中加入甲基丙烯酸钠、甲基丙烯酸六氟丁酯和过氧化二苯甲酰,持续搅拌28min后,对化学反应釜做水浴加热处理;
通过过滤洗涤技术去除化学反应釜中的十二烷基硫酸钠,得到白色的共聚物小珠;
将得到的白色共聚物小珠溶解在四氢呋喃中,接着加入甲醇和去离子水混合,沉淀制得添加剂;
将分子量约为5000的聚己二酰己二胺500份、分子量约为8000硅烷改性聚醚多元元醇800份和加入碳酸二甲酯150份加入到反应瓶中加热溶解均匀,加入MDI155份,在氮气保护下,50℃反应2小时后,降温冷却出料即得硅烷改性单组分聚脲防水材料。
实施例二
向化学反应釜中加入去离子水和十二烷基硫酸钠,控制化学反应釜上装配的磁搅拌机构运转;
待十二烷基硫酸钠完全溶解后,接着向化学反应釜中加入甲基丙烯酸钠、甲基丙烯酸六氟丁酯和过氧化二苯甲酰,持续搅拌28min后,对化学反应釜做水浴加热处理;
通过过滤洗涤技术去除化学反应釜中的十二烷基硫酸钠,得到白色的共聚物小珠;
将得到的白色共聚物小珠溶解在四氢呋喃中,接着加入甲醇和去离子水混合,沉淀制得添加剂;
将分子量约为8000的聚己二酰己二胺800份、分子量约为8000硅烷改性聚醚多元元醇800份和加入碳酸二甲酯160份加入到反应瓶中加热溶解均匀,加入MDI155份,在氮气保护下,50℃反应2小时后,降温冷却出料即得硅烷改性单组分聚脲防水材料。
实施例三
向化学反应釜中加入去离子水和十二烷基硫酸钠,控制化学反应釜上装配的磁搅拌机构运转;
待十二烷基硫酸钠完全溶解后,接着向化学反应釜中加入甲基丙烯酸钠、甲基丙烯酸六氟丁酯和过氧化二苯甲酰,持续搅拌28min后,对化学反应釜做水浴加热处理;
通过过滤洗涤技术去除化学反应釜中的十二烷基硫酸钠,得到白色的共聚物小珠;
将得到的白色共聚物小珠溶解在四氢呋喃中,接着加入甲醇和去离子水混合,沉淀制得添加剂;
将分子量约为5000的聚己二酰己二胺500份、分子量约为8000硅烷改性聚醚多元元醇800份和加入碳酸二甲酯150份加入到反应瓶中加热溶解均匀,加入MDI155份,在氮气保护下,50℃反应2小时后,降温冷却,加入噁唑烷5份,分散均匀,出料即得硅烷改性单组分聚脲防水材料。
实施例四向化学反应釜中加入去离子水和十二烷基硫酸钠,控制化学反应釜上装配的磁搅拌机构运转;
待十二烷基硫酸钠完全溶解后,接着向化学反应釜中加入甲基丙烯酸钠、甲基丙烯酸六氟丁酯和过氧化二苯甲酰,持续搅拌28min后,对化学反应釜做水浴加热处理;
通过过滤洗涤技术去除化学反应釜中的十二烷基硫酸钠,得到白色的共聚物小珠;
将得到的白色共聚物小珠溶解在四氢呋喃中,接着加入甲醇和去离子水混合,沉淀制得添加剂;
将分子量约为5000的聚己二酰己二胺500份、分子量约为8000硅烷改性聚醚多元元醇400份和分子量约为5000硅烷改性聚醚多元元醇250份加入碳酸二甲酯150份加入到反应瓶中加热溶解均匀,加入MDI155份,在氮气保护下,55℃反应2小时后,降温冷却出料即得硅烷改性单组分聚脲防水材料。
实施例五
向化学反应釜中加入去离子水和十二烷基硫酸钠,控制化学反应釜上装配的磁搅拌机构运转;
待十二烷基硫酸钠完全溶解后,接着向化学反应釜中加入甲基丙烯酸钠、甲基丙烯酸六氟丁酯和过氧化二苯甲酰,持续搅拌28min后,对化学反应釜做水浴加热处理;
通过过滤洗涤技术去除化学反应釜中的十二烷基硫酸钠,得到白色的共聚物小珠;
将得到的白色共聚物小珠溶解在四氢呋喃中,接着加入甲醇和去离子水混合,沉淀制得添加剂;
将分子量约为5000的聚己二酰己二胺500份、分子量约为8000硅烷改性聚醚多元元醇400份和分子量约为5000硅烷改性聚醚多元元醇250份加入碳酸二甲酯150份加入到反应瓶中加热溶解均匀,加入HMDI162份,在氮气保护下,55℃反应2小时后,降温冷却出料即得硅烷改性单组分聚脲防水材料。
测试方法
对上述实施例1-5中所得到的各个硅烷改性单组分聚脲防水材料制备的防水涂膜的各项性能进行了测定并且将测量的结果列于表1中,关于相关性能的具体测量方法参见J1748-2014水电水利工程聚脲涂层施工技术规程中DL/T5317-2014单组份涂刷聚脲性能要求和GB/T23446试验方法进行制样测试;
表1为根据本发明的实施例1-5所得的硅烷改性单组份聚脲防水材料制备的防水涂膜性能测试结果。其中,“技术要求”是指根据相关测试方法,硅烷改性单组份聚脲防水材料制备的防水涂膜需要达到的技术标准。
表1
以上实施例1-5证实了通过根据本发明的方法制备的硅烷改性单组份聚脲防水材料能够得到具有良好的断裂伸长率、拉伸强度、对基面粘结强度、耐水性的防水材料应用于高要求的水电工程施工领域。
本发明所述的实施例仅仅是对本发明的优选实施方式进行描述,并非对本发明的构思和范围进行限定,在不脱离本发明设计思路前提下,本领域中工程技术人员对本发明的技术方案做出的各种变型和改进,均应落入本发明的保护范围,本发明请求保护的技术内容,已经全部记载在权利要求书中
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (10)
1.一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,按重量份由以下组分组成:低分量的聚二酸二胺500-800份、硅烷改性多元醇400-800份、溶剂150-160、多异氰酸酯155-162份和添加剂110-120份;
所述硅烷改性单组分聚脲防水材料的制备方法如下:
将低分量的聚二酸二胺、硅烷改性多元醇和溶剂加入到反应瓶中;
加入多异氰酸酯在氮气保护下反应2小时后,降温加入少量潜伏固化促进剂和添加剂,冷却出料。
2.根据权利要求1所述的一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,所述硅烷改性多元醇分子量为5000-12000,所述硅烷改性多元醇的结构简式为:OH-R1(硅氧基)-OH,其中R1为聚醚链段或聚酯链段。
3.根据权利要求1所述的一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,所述硅烷改性多元醇为GOH-520或者GOH-530。
4.根据权利要求1所述的一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,所述聚二酸二胺分子量为1000-12000,所述聚二酸二胺优选聚己二酰己二胺。
5.根据权利要求1所述的一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,所述多异氰酸酯选自TDI、MDI、IPDI、HDI和HMDI中的一种或多种。
6.根据权利要求1所述的一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,所述潜伏固化促进剂为噁唑烷类。
7.根据权利要求1所述的一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,所述添加剂的制备方法包括:
向化学反应釜中加入去离子水和十二烷基硫酸钠,控制化学反应釜上装配的磁搅拌机构运转;
待十二烷基硫酸钠完全溶解后,接着向化学反应釜中加入甲基丙烯酸钠、甲基丙烯酸六氟丁酯和过氧化二苯甲酰,持续搅拌28min后,对化学反应釜做水浴加热处理;
通过过滤洗涤技术去除化学反应釜中的十二烷基硫酸钠,得到白色的共聚物小珠;
将得到的白色共聚物小珠溶解在四氢呋喃中,接着加入甲醇和去离子水混合,沉淀制得添加剂。
8.根据权利要求7所述的一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,所述十二烷基硫酸钠、甲基丙烯酸钠、甲基丙烯酸六氟丁酯、过氧化二苯甲酰和四氢呋喃需进过加压蒸馏处理去除阻聚剂。
9.根据权利要求7所述的一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,所述将得到的白色共聚物小珠溶解在四氢呋喃中,接着加入甲醇和去离子水混合,重复操作四次。
10.根据权利要求7所述的一种硅烷改性单组分聚脲防水材料的制备方法,其特征在于,所述沉淀制得添加剂后,采用滴涂法均匀涂覆在玻璃面板,于室温环境下干燥。
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