CN109280469A - 一种高强度单组份聚脲及其制备方法 - Google Patents
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Abstract
本发明提供一种高强度单组份聚脲及其制备方法，包括单组份聚脲预聚体的合成，合成方法为：脂肪族异氰酸酯单体为10‑50份，多元醇为20‑80份，溶剂为5‑20份，催化剂0.2‑2.5份，合成温度控制在80‑115℃，反应时间为2.5‑4.5小时，反应过程需要充氮气保护反应，溶剂需要在用之前加分子筛吸水剂除水，多元醇在使用之前需要90‑110℃真空脱水，真空度要求在0.01‑0.05MPa，催化剂需要跟溶剂混合后加入，单组分聚脲预聚体的加入量占总量的50‑85份。该单组份聚脲具有优异的物理化学性能，完全达到甚至超过双组份喷涂聚脲的物理化学性能，施工工艺简单方便。
Description
技术领域
本发明涉及一种高强度单组份聚脲及其制备方法，属于聚脲涂料技术领域。
背景技术
聚脲技术是20世界90年代中期在欧美发展起来的的一种不含有有机挥发性物质的新型环保施工技术，该技术集材料配方和施工工艺与一体，具有优异的物理性能和化学性能，施工效率高。聚脲技术一般采用双组份体系，两个组分经过高温高压设备混合后喷涂在混凝土或者金属以及各种复合材料上面，形成一层致密的涂层，起到防腐、防水、耐磨等功能。双组份喷涂聚脲有其特定的有点，但是在实际应用过程中，由于施工现场情况复杂，有时会在偏远山区，或者高空作业，水电等供应是比较大的问题，因此有必要研发一种既能达到双组份喷涂聚脲优异的物理化学能行的材料，并且还需要施工简单方便，不需要电源，只需要人工操作的材料。
本发明的高强度单组份聚脲具有施工简单方便，不需要外部电源，只需要一把刮刀，一把刷子，即可顺利的完成特殊工况下的施工，并且具有优异的物理化学能行，完全可以达到各种条件下在混凝土、金属以及各种复合材料上的使用要求。并且本发明的高强度单组份聚脲具有优异的耐黄变性，可以长期用于户外使用，不变色、不粉化。
发明内容
本发明的目的是提供一种高强度单组份聚脲及其制备方法。
本发明所采取的技术方案是：
一种高强度单组份聚脲及其制备方法，其特征在于包括单组份聚脲预聚体的合成及其潜固化剂、色浆、催化剂、粉体填料、溶剂的混合。
进一步地，所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的单组份聚脲预聚体的合成方法为：脂肪族异氰酸酯单体为10-50份，多元醇为20-80份，溶剂为5-20份，催化剂0.2-2.5份，合成温度控制在80-115℃，反应时间为2.5-4.5小时，反应过程需要充氮气保护反应，溶剂需要在用之前加分子筛吸水剂除水，多元醇在使用之前需要90-110℃真空脱水，真空度要求在0.01-0.05MPa，催化剂需要跟溶剂混合后加入，单组分聚脲预聚体的加入量占总量的50-85份。
进一步地，所述的一种高强度单组份聚脲及其制备方法，其特征在于：其中所述的脂肪族异氰酸酯包括异佛尔酮二异氰酸酯，六亚甲基二异氰酸酯，二环己基甲烷二异氰酸酯，1,4环己烷二异氰酸酯，环己烷二亚甲基二异氰酸酯，三甲基-1,6-六亚甲基二异氰酸酯，甲基环己基二异氰酸酯中的一种或几种。
进一步地，所述的一种高强度单组份聚脲及其制备方法，其特征在于：多元醇为氧化丙烯多元醇，聚四氢呋喃聚醚多元醇，聚己内酯多元醇，蓖麻油多元醇，分子量在500-4000，官能度在2-4，使用之前需要90-110℃真空脱水，真空度要求在0.01-0.05MPa，其中的一种或几种。
进一步地，所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的潜固化剂为噁唑烷型潜固化剂，其加入量占总量的5-20份。所述的噁唑烷潜固化剂为含有双脲键的二噁唑烷或者含羟基的单噁唑烷、含双酯键的双噁唑烷的一种或者几种。
进一步地，所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的色浆，其加入量占总量的3-10份。
进一步地，所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的催化剂为二月桂酸二丁基锡，辛酸亚锡，异辛酸铅，异辛酸铋的一种或几种。其加入量占总量的0.05-0.5份。
进一步地，所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的粉体填料为800-2000目的超细活性碳酸钙、硫酸钡、滑石粉、钛白粉、硅微粉、硫酸钙、硫酸镁的一种或几种，其加入量占总量的5-30份。
进一步地，所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的溶剂为醋酸丁酯，醋酸乙酯，甲乙酮，丙酮，甲苯，二甲苯，芳烃溶剂油的一种或几种。其加入量占总量的5-25份。
本发明的有益效果是：该单组份聚脲具有优异的物理化学性能，完全达到甚至超过双组份喷涂聚脲的物理化学性能，最主要是是施工工艺简单方便，不需要喷涂设备，一把刮刀、一只刷子就可以进行正常施工，并且施工效率高，施工后成膜涂层致密，表层光亮。并且本发明的高强度单组份聚脲具有优异的耐黄变性，可以长期用于户外使用，不变色、不粉化。
具体实施方式：
实例1：
一种高强度单组份聚脲及其制备方法，包括以下步骤：
将500克聚醚多元醇（分子量2000，官能度为2）放入三口烧瓶，在110℃下真空脱水2.5小时，冷却到50℃。
加入0.5g二月桂酸二丁基锡，加入50克醋酸丁酯，搅拌均匀，温度控制在60℃左右，加入180克异佛尔酮二异氰酸酯，分散均匀。然后缓慢升温到85℃，反应2小时。
加入60克1500目超细碳酸钙，高速分散均匀，85℃温度下继续反应1小时。
加入65克醋酸丁酯和45g含有双脲键的二噁唑烷，55克色浆，搅拌0.5小时，搅拌均匀后，过滤出料。
对本实例的产品进行制样测试：
取本实例1的液体样品，一部分涂覆于平整的PE板上，湿膜厚度在2mm左右，一部分涂覆于混凝土样块，置于25℃，湿度在50±10份的恒温恒湿箱中，固化7天，取出后进行测试。
测试结果为：硬度85A，拉伸强度13MPa，伸长率350%，附着力（拉拔法）2.8MPa。
实例2：
一种高强度单组份聚脲及其制备方法，包括以下步骤：
将500克聚四氢呋喃多元醇（分子量1000，官能度为2）放入三口烧瓶，在110℃下真空脱水2.5小时，冷却到50℃。
加入0.55g二月桂酸二丁基锡，加入35克醋酸丁酯，搅拌均匀，温度控制在60℃左右，加入175克异佛尔酮二异氰酸酯，分散均匀。然后缓慢升温到85℃，反应2小时。
加入60克1500目超细碳酸钙，高速分散均匀，85℃温度下继续反应1小时。
加入60克醋酸丁酯和60g含有双脲键的二噁唑烷，50克色浆，搅拌0.5小时，搅拌均匀后，过滤出料。
对本实例的产品进行制样测试：
取本实例2的液体样品，一部分涂覆于平整的PE板上，湿膜厚度在2mm左右，一部分涂覆于混凝土样块，置于25℃，湿度在50±10份的恒温恒湿箱中，固化7天，取出后进行测试。
测试结果为：硬度88A，拉伸强度18.5MPa，伸长率380%，附着力（拉拔法）2.8MPa。
实例3：
一种高强度单组份聚脲及其制备方法，包括以下步骤：
将500克聚蓖麻油多元醇（当量350），放入三口烧瓶，在110℃下真空脱水2.5小时，冷却到50℃。
加入0.55g二月桂酸二丁基锡，加入55克醋酸丁酯，搅拌均匀，温度控制在60℃左右,加入175克异佛尔酮二异氰酸酯，分散均匀。然后缓慢升温到85℃，反应2小时。
加入65克1500目超细碳酸钙，高速分散均匀，85℃温度下继续反应1小时。
加入45克醋酸丁酯和68g含有双脲键的二噁唑烷，40克色浆，搅拌0.5小时，搅拌均匀后，过滤出料。
对本实例的产品进行制样测试：
取本实例3的液体样品，一部分涂覆于平整的PE板上，湿膜厚度在2mm左右，一部分涂覆于混凝土样块，置于25℃，湿度在50±10份的恒温恒湿箱中，固化7天，取出后进行测试。
测试结果为：硬度95A，拉伸强度23MPa，伸长率260%，附着力（拉拔法）3.2MPa。
Claims (9)
1.一种高强度单组份聚脲及其制备方法，其特征在于包括单组份聚脲预聚体的合成及其潜固化剂、色浆、催化剂、粉体填料、溶剂的混合制备。
2.根据权利要求1所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的单组份聚脲预聚体的合成方法为：脂肪族异氰酸酯单体为10-50份，多元醇为20-80份，溶剂为5-20份，催化剂0.2-2.5份，合成温度控制在80-115℃，反应时间为2.5-4.5小时，反应过程需要充氮气保护反应，溶剂需要在用之前加分子筛吸水剂除水，多元醇在使用之前需要90-110℃真空脱水，真空度要求在0.01-0.05MPa，催化剂需要跟溶剂混合后加入，单组分聚脲预聚体的加入量占总量的50-85份。
3.根据权利要求1所述的一种高强度单组份聚脲及其制备方法，其特征在于：其中所述的脂肪族异氰酸酯包括异佛尔酮二异氰酸酯，六亚甲基二异氰酸酯，二环己基甲烷二异氰酸酯，1,4环己烷二异氰酸酯，环己烷二亚甲基二异氰酸酯，三甲基-1,6-六亚甲基二异氰酸酯，甲基环己基二异氰酸酯中的一种或几种。
4.根据权利要求1所述的一种高强度单组份聚脲及其制备方法，其特征在于：多元醇为氧化丙烯多元醇，聚四氢呋喃聚醚多元醇，聚己内酯多元醇，蓖麻油多元醇，分子量在500-4000，官能度在2-4，使用之前需要90-110℃真空脱水，真空度要求在0.01-0.05MPa，其中的一种或几种。
5.根据权利要求1所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的潜固化剂为噁唑烷型潜固化剂，其加入量占总量的5-20份，所述的噁唑烷潜固化剂为含有双脲键的二噁唑烷或者含羟基的单噁唑烷、含双酯键的双噁唑烷的一种或者几种。
6.根据权利要求1所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的色浆，其加入量占总量的3-10份。
7.根据权利要求1所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的催化剂为二月桂酸二丁基锡，辛酸亚锡，异辛酸铅，异辛酸铋的一种或几种,其加入量占总量的0.05-0.5份。
8.根据权利要求1所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的粉体填料为800-2000目的超细活性碳酸钙、硫酸钡、滑石粉、钛白粉、硅微粉、硫酸钙、硫酸镁的一种或几种，其加入量占总量的5-30份。
9.根据权利要求1所述的一种高强度单组份聚脲及其制备方法，其特征在于：所述的溶剂为醋酸丁酯，醋酸乙酯，甲乙酮，丙酮，甲苯，二甲苯，芳烃溶剂油的一种或几种,其加入量占总量的5-25份。
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| CN111393973A (zh) * | 2020-05-13 | 2020-07-10 | 河北宇阳泽丽防水材料有限公司 | 一种脂肪族单组分聚脲涂料及其制备方法 |
| CN112175494A (zh) * | 2020-09-28 | 2021-01-05 | 青岛爱尔家佳新材料股份有限公司 | 一种手工刮涂型水利大坝抗冰拔耐磨的聚脲涂料及其制备方法 |
| CN115895414A (zh) * | 2022-12-01 | 2023-04-04 | 华阳新材料科技集团有限公司 | 一种单组份聚脲防腐隔热涂料的制备方法 |
| CN116004101A (zh) * | 2023-02-23 | 2023-04-25 | 青岛聚合四维科技有限公司 | 一种耐候单组分聚脲防护涂层及其制备方法 |
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| CN104178005A (zh) * | 2014-08-08 | 2014-12-03 | 大连怿文新材料科技发展有限公司 | 埋地管道用单组分重防腐聚脲及其制备方法 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393973A (zh) * | 2020-05-13 | 2020-07-10 | 河北宇阳泽丽防水材料有限公司 | 一种脂肪族单组分聚脲涂料及其制备方法 |
| CN112175494A (zh) * | 2020-09-28 | 2021-01-05 | 青岛爱尔家佳新材料股份有限公司 | 一种手工刮涂型水利大坝抗冰拔耐磨的聚脲涂料及其制备方法 |
| CN115895414A (zh) * | 2022-12-01 | 2023-04-04 | 华阳新材料科技集团有限公司 | 一种单组份聚脲防腐隔热涂料的制备方法 |
| CN115895414B (zh) * | 2022-12-01 | 2023-08-04 | 华阳新材料科技集团有限公司 | 一种单组份聚脲防腐隔热涂料的制备方法 |
| CN116004101A (zh) * | 2023-02-23 | 2023-04-25 | 青岛聚合四维科技有限公司 | 一种耐候单组分聚脲防护涂层及其制备方法 |
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