CN105385312A - 硅烷基改性酚醛环氧防腐阻燃涂料 - Google Patents

硅烷基改性酚醛环氧防腐阻燃涂料 Download PDF

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CN105385312A
CN105385312A CN201510981698.4A CN201510981698A CN105385312A CN 105385312 A CN105385312 A CN 105385312A CN 201510981698 A CN201510981698 A CN 201510981698A CN 105385312 A CN105385312 A CN 105385312A
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李友柱
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Abstract

本发明公开了一种硅烷基改性酚醛环氧防腐阻燃涂料，包括复合浆和固化剂，所述复合浆组分及重量百分比为：三聚氰胺10-15％，季戊四醇5-10％，酚醛环氧树脂30-40％，多聚磷酸铵20-25％，无溶剂消泡剂0.1-1％，无溶剂分散剂0.1-1％，无溶剂流平剂0.1-1％；余量为二氧化钛；所述固化剂采用胺值为300mgKOH/g的氨基硅烷固化剂；所述复合浆和固化剂之间的重量比为3:1。本发明的涂料除了具有重防腐涂料的防腐蚀保护功能外，还具有耐温阻燃的特种功能，而且可应用于多种基材。

Description

硅烷基改性酚醛环氧防腐阻燃涂料
技术领域
本发明涉及一种具有耐温、阻燃、耐化学腐蚀、耐盐雾、耐老化功能的重防腐阻燃涂料，可应用在工业重防腐领域及建筑领域。
背景技术
传统重防腐涂料可保护基材免受恶劣环境的侵蚀,但含溶剂的多，环保性差，功能性单一，无溶剂且具有耐温阻燃的重防腐涂料目前屈指可数，基于某些重防腐领域需要耐温阻燃的功能，故此需要开发一种不但重防腐,而且能满足环保性和阻燃性的要求的涂料。
发明内容
本发明所要解决的技术问题是克服现有重防腐涂料产品的不足，提供一种硅烷基改性酚醛环氧防腐阻燃涂料，该涂料可以在多种基材表面涂刷，具有耐热阻燃耐腐蚀的特点，安全环保，可满足重防腐领域耐温阻燃的需求。
为了解决上述技术问题，发明了一种硅烷基改性酚醛环氧防腐阻燃涂料，包括复合浆和固化剂，所述复合浆组分及重量百分比为：三聚氰胺10-15％，季戊四醇5-10％，酚醛环氧树脂30-40％，多聚磷酸铵20-25％，消泡剂0.1-1％，分散剂0.1-1％，流平剂0.1-1％；余量为二氧化钛；所述固化剂采用胺值为300mgKOH/g的氨基硅烷固化剂；所述复合浆和固化剂之间的重量比为3:1。
优选的，所述酚醛环氧树脂为液体，环氧当量为220。
优选地，所述三聚氰胺、季戊四醇多聚磷酸铵的粒径均为10-15微米。
优选地，所述消泡剂、分散剂、流平剂均为无溶剂型助剂。
优选地，所述酚醛环氧树脂和氨基硅烷固化剂的不挥发物含量均分别为100％。
与现有技术相比，本发明的有益效果是：
本发明涂料通过采用无溶剂材料，不挥发分固体含量100％，为环保型多功能涂料。其中所确定的三聚氰胺、季戊四醇、多聚磷酸铵的比例，起到阻燃的效果，同时，涂料中含有酚醛环氧树脂成分，当复合浆与氨基硅烷固化剂反应后，可以保证涂料在各种基材上牢固附着和耐化学性、耐温的性能，本发明涂料可以在金属、混凝土、木质、塑料等基材上涂刷，可以应用于防腐、耐温、阻燃的重防腐领域。
具体实施方式
下面结合具体实施例对本发明技术方案作进一步详细描述，所描述的具体实施例仅对本发明进行解释说明，并不用以限制本发明。
实施例1、硅烷基改性酚醛环氧防腐阻燃涂料，包括复合浆和固化剂，所述复合浆组分及重量百分比为：三聚氰胺10％，季戊四醇5％，酚醛环氧树脂30％，多聚磷酸铵20％，无溶剂硅烷消泡剂0.1％，无溶剂硅烷分散剂0.1％，无溶剂硅烷流平剂0.1％；余量为二氧化钛，其中，所述三聚氰胺、季戊四醇多聚磷酸铵的粒径均为15微米，所述酚醛环氧树脂为液体，环氧当量为220,所述酚醛环氧树脂和氨基硅烷固化剂的不挥发物含量均分别为100％。该复合剂的制备是：将液体酚醛环氧树脂投入搅拌缸，在300-500转/分钟速度下加入无溶剂型的分散剂和消泡剂，三聚氰胺，季戊四醇、多聚磷酸铵，在800-1200转/分钟速度下分散30分钟，砂磨，至细度小于50微米，转入过滤机，过滤后即得复合浆。所述固化剂采用胺值为300mgKOH/g的无溶剂氨基硅烷固化剂。使用之前按照复合浆与固化剂重量比为3：1混合后制得本发明硅烷基改性酚醛环氧防腐阻燃涂料。
实施例2、硅烷基改性酚醛环氧防腐阻燃涂料，包括复合浆和固化剂，所述复合浆组分及重量百分比为：三聚氰胺15％，季戊四醇10％，酚醛环氧树脂40％，多聚磷酸铵25％；无溶剂硅烷消泡剂1％，无溶剂硅烷分散剂1％，无溶剂硅烷流平剂1％；余量为二氧化钛，其中，其中，所述三聚氰胺、季戊四醇多聚磷酸铵的粒径均为15微米，所述酚醛环氧树脂为液体，环氧当量为220；所述酚醛环氧树脂和氨基硅烷固化剂的不挥发物含量均分别为100％。该复合剂的制备与实施例1相同。所述固化剂的选用，以及所述复合浆和固化剂之间的重量比与实施例1相同。
本发明硅烷基改性酚醛环氧防腐阻燃涂料适应金属、混凝土、木质、塑料等多种基材，施工时主要包括：底材前处理→调漆→涂装，施工环境温度5-50℃，不可雨雪中施工；喷涂前要除去基材油脂、氧化皮、浮尘和疏松部分，钢铁基材需喷砂Sa2.0级处理；然后，按照所述复合浆和固化剂之间的重量比为3:1混合搅拌均匀后，对基材进行一至两遍施工；涂装方式可以是工业用高压喷涂机喷涂或采用人工刷涂均可，不限于喷涂、滚涂和刷涂，涂装厚度为0.2毫米左右为宜，完全干燥后养护7天后可投入使用。
硅烷基改性酚醛环氧防腐阻燃涂料的主要技术指标如下：
25℃表干：6h(按GB/T1728-1989测定法测定)；
25℃实干：24h(按GB/T1728-1989测定法测定)；
不挥发物含量：100％(按国标GB/T1725-2007的规定测定)；
铅笔硬度：3H；(按GB/T6739涂膜硬度铅笔测定法测定)；
耐50％盐酸:1个月无变化；(按GB/T1763漆膜耐化学试剂性测定标准测定)；
耐20％氢氧化钠：1个月无变化(按GB/T1763漆膜耐化学试剂性测定标准测定)；
耐中性盐雾:1000小时(按GB/T1771耐中性盐雾性能的测定标准测定)；
耐老化(紫外氙灯)：1000小时(按GB/T1865-2009的规定测定)；
燃烧性B1级(按GB/T8624—2012的规定测定)；
耐温性200℃(按GB/T1735—2009的规定测定)。
本发明涂料中固化剂的组分必须采用氨基硅烷固化剂，否则不能和复合浆充分反应，影响漆膜在基材上的附着及耐化学性的特性。复合浆和固化剂之间的重量比为3:1混合搅拌均匀，如果混合比例有误差可引起固化不良，漆膜无法正常干燥，从而影响漆膜的理化性能指标。
尽管上面对本发明进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨的情况下，还可以做出很多变形，这些均属于本发明的保护之内。

Claims (7)

1.一种硅烷基改性酚醛环氧防腐阻燃涂料，包括复合浆和固化剂，其特征在于：所述复合浆组分及重量百分比为：三聚氰胺10-15％，季戊四醇5-10％，酚醛环氧树脂30-40％，多聚磷酸铵20-25％，消泡剂0.1-1％，分散剂0.1-1％，流平剂0.1-1％；余量为二氧化钛；
所述固化剂采用胺值为300mgKOH/g的氨基硅烷固化剂；
所述复合浆和固化剂之间的重量比为3:1。
2.根据权利要求1所述硅烷基改性酚醛环氧防腐阻燃涂料，其特征在于：所述酚醛环氧树脂为液体，环氧当量为220。
3.根据权利要求1所述硅烷基改性酚醛环氧防腐阻燃涂料，其特征在于：所述酚醛环氧树脂和氨基硅烷固化剂的不挥发物含量均分别为100％。
4.根据权利要求1所述硅烷基改性酚醛环氧防腐阻燃涂料，其特征在于：所述三聚氰胺的粒径为10-15微米。
5.根据权利要求1所述硅烷基改性酚醛环氧防腐阻燃涂料，其特征在于：所述季戊四醇的粒径为10-15微米。
6.根据权利要求1所述硅烷基改性酚醛环氧防腐阻燃涂料，其特征在于：所述多聚磷酸铵的粒径为10-15微米。
7.根据权利要求1所述硅烷基改性酚醛环氧防腐阻燃涂料，其特征在于：所述消泡剂、分散剂、流平剂均为无溶剂型助剂。
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Cited By (2)

* Cited by examiner, † Cited by third party
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CN106634453A (zh) * 2016-12-28 2017-05-10 中昊北方涂料工业研究设计院有限公司 一种重防腐底漆树脂的制备方法
CN110862708A (zh) * 2019-11-22 2020-03-06 中国兵器工业第五九研究所 一种特种车厢或方舱用防火焰切割涂层

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