CN109233619A - 纳米陶瓷水性涂料 - Google Patents
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Abstract
本发明提出了一种纳米陶瓷水性涂料,按照重量份数计算,包括以下组分:硅氧烷30~45份、水性丙烯酸乳液6~12份、阻燃剂5~10份、六钛酸钾晶须8~16份、纳米陶瓷粉末5~10份、纳米珍珠岩12~18份、氧化铝纤维3~6份、润湿分散剂1~3份、增稠剂1~3份、消泡剂0.2~1份以及水15~25份;所述纳米陶瓷粉末主要由纳米氧化锆、纳米碳化硅、纳米氟化钙、纳米氧化锌与纳米氧化镁制备得到;所述阻燃为氢氧化镁与聚磷酸铵的混合物。该涂料不仅耐高温性能好,且附着力强,环保。
Description
技术领域
本发明属于涂料技术领域,具体涉及一种纳米陶瓷水性涂料。
背景技术
涂料,在中国传统名称为油漆,是涂覆在被保护或被装饰的物体表面,并能与被涂物形成牢固附着的连续薄膜,通常是以树脂、或油、或乳液为主,添加或不添加颜料、填料,添加相应助剂,用有机溶剂或水配制而成的粘稠液体。涂料在人们的生产和生活中应用很多,防火涂料与隔热涂料就是其中一种。
目前,市面上主要使用为有机硅耐高温涂料,含有大量的有机挥发性化合物(VOC),对于环境有着极大的危害,且有机硅涂料耐高温涂料在600℃时开始分解碳化,高温下易燃烧冒烟,产生有毒气体。无机纳米陶瓷涂料由于其具有绿色健康环保的特性,并且高温下不燃烧、不冒烟,无有毒气体释放,同时可满足耐瞬间高温的性能,近几年已逐渐开始在高温行业应用。
发明内容
本发明提出一种纳米陶瓷水性涂料,该涂料不仅耐高温性能好,而且附着力强,环保。
本发明的技术方案是这样实现的:
一种纳米陶瓷水性涂料,按照重量份数计算,包括以下组分:
硅氧烷30~45份、水性丙烯酸乳液6~12份、阻燃剂5~10份、六钛酸钾晶须8~16份、纳米陶瓷粉末5~10份、纳米珍珠岩12~18份、氧化铝纤维3~6份、润湿分散剂1~3份、增稠剂1~3份、消泡剂0.2~1份以及水15~25份;所述纳米陶瓷粉末主要由纳米氧化锆、纳米碳化硅、纳米氟化钙、纳米氧化锌与纳米氧化镁制备得到;所述阻燃为氢氧化镁与聚磷酸铵的混合物。
优选地,所述纳米陶瓷粉末的制备方法,包括以下步骤:
1)按照重量份数计算,称取纳米氧化锆50~60份、纳米碳化硅20~30份、纳米氟化钙2~5份、纳米氧化锌1~3份与纳米氧化镁2~5份;
2)将称重后的配料配制成悬浮液,然后超声搅拌至均匀,再在球磨机上球磨混合均匀,经真空干燥得到原料粉末;
3)将混合好的原料粉末装入石墨模具中,采用热压烧结工艺进行制备,粉碎,即得到纳米陶瓷粉末。
优选地,所述步骤3)的热压烧结温度为1440~1560℃,保温时间为3~10小时。
优选地,所述润湿分散剂为丙烯酸铵盐分散剂。
优选地,所述增稠剂是甲基纤维素、羟乙基纤维素、羟甲基纤维素和羟甲基纤维素钠中的一种或多种的混合;所述消泡剂为聚二甲基硅氧烷溶液或矿物油。
本发明的纳米陶瓷水性涂料的制备方法,包括以下步骤:
1)按照配方量将润湿分散剂、硅氧烷、水性丙烯酸乳液、消泡剂加入水中,在300~500r/min的转速下搅拌充分混合;
2)向步骤1)的混合物中加入六钛酸钾晶须、氧化铝纤维、纳米陶瓷粉末与纳米珍珠岩在1000~2000r/min的转速下分散;
3)向步骤2)的分散液中加入增稠剂、阻燃剂及消泡剂搅拌均匀,即可。
本发明的有益效果:
1)本发明选用主要由纳米氧化锆、纳米碳化硅、纳米氟化钙、纳米氧化锌与纳米氧化镁制备得到的纳米陶瓷粉末使得涂料的涂层具有很强的抗氧化与耐高温性能。涂层的硬度大大提高,经测试硬度可达4H,极大的延长了使用寿命。
2)本发明中钛酸钾晶须的结构为连锁隧道式结构,K+离子居隧道中间,具有较高的稳定性,从而使六钛酸钾晶须具有高温吸音、化学稳定性、绝缘性、反射红外线、优良的防腐性能等。六钛酸钾晶须作为隔热材料主要基于结构隔热、物理隔热、红外线反射三点,且无毒无害,使用寿命长,可以耐1200℃的高温,耐酸耐碱,耐磨绝缘,力学和物理性能好。阻燃为氢氧化镁与聚磷酸铵的混合物,其与钛酸钾晶须配合,使得产品的耐火等级达到一级。钛酸钾晶须可以与硅氧烷发生枝接,并且改善涂层机械性能,增强涂层在膜厚较大时柔韧性。氧化铝纤维由于其短棒状结构可以相互交错的排列在涂层立体网格中,起到增强体用,其与纳米陶瓷粉末结合极大地满足了涂层在常温和高温下抗挠曲性能,满足热稳定性。
具体实施方式
实施例1
纳米陶瓷粉末的制备方法,包括以下步骤:
1)按照重量份数计算,称取纳米氧化锆50份、纳米碳化硅30份、纳米氟化钙2份、纳米氧化锌1份与纳米氧化镁2份;
2)将称重后的配料配制成悬浮液,然后超声搅拌至均匀,再在球磨机上球磨混合均匀,经真空干燥得到原料粉末;
3)将混合好的原料粉末装入石墨模具中,采用热压烧结工艺进行制备,热压烧结温度为1440℃,保温时间为10小时,粉碎,即得到纳米陶瓷粉末。
实施例2
纳米陶瓷粉末的制备方法,包括以下步骤:
1)按照重量份数计算,称取纳米氧化锆60份、纳米碳化硅20份、纳米氟化钙5份、纳米氧化锌3份与纳米氧化镁5份;
2)将称重后的配料配制成悬浮液,然后超声搅拌至均匀,再在球磨机上球磨混合均匀,经真空干燥得到原料粉末;
3)将混合好的原料粉末装入石墨模具中,采用热压烧结工艺进行制备,热压烧结温度为1560℃,保温时间为3小时,粉碎,即得到纳米陶瓷粉末。
实施例3
一种纳米陶瓷水性涂料,按照重量份数计算,包括以下组分:
硅氧烷38份、水性丙烯酸乳液8份、阻燃剂7份、六钛酸钾晶须12份、实施例2的纳米陶瓷粉末8份、纳米珍珠岩15份、氧化铝纤维4份、丙烯酸铵盐分散剂2份、甲基纤维素2份、聚二甲基硅氧烷溶液0.6份以及水20份。阻燃为氢氧化镁与聚磷酸铵的混合物。
实施例4
一种纳米陶瓷水性涂料,按照重量份数计算,包括以下组分:
硅氧烷30份、水性丙烯酸乳液12份、阻燃剂5份、六钛酸钾晶须8份、实施例1的纳米陶瓷粉末5份、纳米氧化铝12份、纳米珍珠岩12份、氧化铝纤维3份、丙烯酸铵盐分散剂1份、羟乙基纤维素1份、聚二甲基硅氧烷溶液0.2份以及水15份。阻燃为氢氧化镁与聚磷酸铵的混合物。
实施例5
一种纳米陶瓷水性涂料,按照重量份数计算,包括以下组分:
硅氧烷45份、水性丙烯酸乳液6份、阻燃剂10份、六钛酸钾晶须16份、实施例2的纳米陶瓷粉末10份、纳米氧化铝6份、纳米珍珠岩18份、氧化铝纤维6份、丙烯酸铵盐分散剂3份、羟甲基纤维素3份、矿物油1份以及水25份。阻燃为氢氧化镁与聚磷酸铵的混合物。
试验例
将实施例3~5的涂料进行性能检测,结果见表1:
表1实施例3~5的纳米陶瓷水性涂料的性能
另外,将实施例3~5提供的涂料涂覆在玻璃上面进行耐温性能测试,涂层厚度为4.0mm,热面温度为700℃,实施例3~5的涂料背面温度为195~210℃。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (6)
1.一种纳米陶瓷水性涂料,其特征在于,按照重量份数计算,包括以下组分:
硅氧烷30~45份、水性丙烯酸乳液6~12份、阻燃剂5~10份、六钛酸钾晶须8~16份、纳米陶瓷粉末5~10份、纳米珍珠岩12~18份、氧化铝纤维3~6份、润湿分散剂1~3份、增稠剂1~3份、消泡剂0.2~1份以及水15~25份;所述纳米陶瓷粉末主要由纳米氧化锆、纳米碳化硅、纳米氟化钙、纳米氧化锌与纳米氧化镁制备得到;所述阻燃为氢氧化镁与聚磷酸铵的混合物。
2.根据权利要求1所述的纳米陶瓷水性涂料,其特征在于,所述纳米陶瓷粉末的制备方法,包括以下步骤:
1)按照重量份数计算,称取纳米氧化锆50~60份、纳米碳化硅20~30份、纳米氟化钙2~5份、纳米氧化锌1~3份与纳米氧化镁2~5份;
2)将称重后的配料配制成悬浮液,然后超声搅拌至均匀,再在球磨机上球磨混合均匀,经真空干燥得到原料粉末;
3)将混合好的原料粉末装入石墨模具中,采用热压烧结工艺进行制备,粉碎,即得到纳米陶瓷粉末。
3.根据权利要求2所述的纳米陶瓷水性涂料,其特征在于,所述步骤3)的热压烧结温度为1440~1560℃,保温时间为3~10小时。
4.根据权利要求1所述的纳米陶瓷水性涂料,其特征在于,所述润湿分散剂为丙烯酸铵盐分散剂。
5.根据权利要求1所述的纳米陶瓷水性涂料,其特征在于,所述增稠剂是甲基纤维素、羟乙基纤维素、羟甲基纤维素和羟甲基纤维素钠中的一种或多种的混合。
6.根据权利要求1所述的纳米陶瓷水性涂料,其特征在于,所述消泡剂为聚二甲基硅氧烷溶液或矿物油。
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Cited By (5)
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CN112662206A (zh) * | 2020-11-26 | 2021-04-16 | 启东育锋新材料科技有限公司 | 一种消声器密封元件表面涂覆用陶瓷涂料及使用方法 |
CN112897987A (zh) * | 2021-03-15 | 2021-06-04 | 佛山市藻晨科技有限公司 | 一种微电解镁基陶瓷材料制备方法 |
CN112980320A (zh) * | 2021-02-23 | 2021-06-18 | 佛山市藻晨科技有限公司 | 一种微电解无机陶瓷涂料、其制备方法及应用 |
CN113388304A (zh) * | 2021-07-20 | 2021-09-14 | 广州圣威化妆品包装有限公司 | 一种耐磨化妆品包装瓶的制作工艺 |
CN113621307A (zh) * | 2021-08-24 | 2021-11-09 | 胜利油田胜机石油装备有限公司 | 复合涂料及其在制备涂层油管中的应用 |
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Cited By (5)
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CN112662206A (zh) * | 2020-11-26 | 2021-04-16 | 启东育锋新材料科技有限公司 | 一种消声器密封元件表面涂覆用陶瓷涂料及使用方法 |
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CN112897987A (zh) * | 2021-03-15 | 2021-06-04 | 佛山市藻晨科技有限公司 | 一种微电解镁基陶瓷材料制备方法 |
CN113388304A (zh) * | 2021-07-20 | 2021-09-14 | 广州圣威化妆品包装有限公司 | 一种耐磨化妆品包装瓶的制作工艺 |
CN113621307A (zh) * | 2021-08-24 | 2021-11-09 | 胜利油田胜机石油装备有限公司 | 复合涂料及其在制备涂层油管中的应用 |
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