CN106479410A - 一种铝酸钡纳米片复合高温密封胶 - Google Patents

一种铝酸钡纳米片复合高温密封胶 Download PDF

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CN106479410A
CN106479410A CN201610960752.1A CN201610960752A CN106479410A CN 106479410 A CN106479410 A CN 106479410A CN 201610960752 A CN201610960752 A CN 201610960752A CN 106479410 A CN106479410 A CN 106479410A
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nanometer sheet
high temperature
barium aluminate
fluid sealant
temperature fluid
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裴立宅
魏天
林飞飞
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Anhui University of Technology AHUT
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    • C09J11/06—Non-macromolecular additives organic
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  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
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Abstract

本发明公开了一种铝酸钡纳米片复合高温密封胶，属于密封材料技术领域。该复合高温密封胶的质量百分比组成如下：铝酸钡纳米片25‑45％、呋喃树脂20‑25％、聚丙烯5‑10％、乙烯乙酸酯‑乙烯共聚乳液20‑25％、甲基硅酸钠10‑15％，所述铝酸钡纳米片的厚度为50‑100nm，整个纳米片的尺寸为1‑2μm。本发明以高熔点、耐腐蚀的铝酸钡纳米片作为无机填料，呋喃树脂、聚丙烯和乙烯乙酸酯‑乙烯共聚乳液作为胶粘剂，甲基硅酸钠作为防水剂，制备出铝酸钡纳米片复合高温密封胶。该复合高温密封胶具有良好的密封性、耐高温、耐老化性、耐腐蚀性、热稳定性、阻燃性及耐水性能，在化工、冶金、材料等高温、腐蚀性介质的容器、阀门和管道等连接密封领域具有良好的应用前景。

Description

一种铝酸钡纳米片复合高温密封胶
技术领域
本发明属于密封材料技术领域，具体涉及一种铝酸钡纳米片复合高温密封胶。
背景技术
密封胶是指具有一定粘结性的密封材料，其功能主要体现于粘结和密封两方面。国家发明专利“耐正压耐高温密封胶的配方及其制造工艺”(国家发明专利申请号：200810119026.2)公开了以环氧树脂、间苯二胺及磷苯二甲酸二丁酯作为原料制备出了一种耐正压耐高温密封胶，可以在低于160℃的温度下使用。国家发明专利“一种改性聚醚密封材料及其制备方法”(国家发明专利申请号：201410273301.1)公开了以改性聚醚化合物、聚醚多元醇、粘附促进剂(氨丙基三乙氧基硅烷、氨丙基三甲氧基硅烷、脲基丙基三乙氧基硅烷、二甲氧基硅烷、环氧丙氧基三甲氧基硅烷)及催化剂(辛酸锡、丁酸锡、二乙酸二丁基锡、二辛酸二丁基锡、二月桂酸二丁基锡)为主要原料制备出了一种硅烷改性聚醚密封材料。
由于密封胶应用领域的不断扩展，在某些特殊场合，例如高温管道等领域，除了要求具有粘结和密封两种基本功能外，还需要具有良好的耐高温、耐老化性、耐腐蚀性、热稳定性、阻燃性及耐水性等多种功能，而现有的密封胶难以满足以上要求。
发明内容
本发明的目的是为了解决以上问题，提供铝酸钡纳米片作为主要原料，引入呋喃树脂、聚丙烯、乙烯乙酸酯-乙烯共聚乳液和甲基硅酸钠等成分，以期得到具有良好的密封性、耐高温、耐老化性、耐腐蚀性、热稳定性、阻燃性及耐水性的铝酸钡纳米片复合高温密封胶。
本发明所提供的铝酸钡纳米片复合高温密封胶的质量百分比组成如下：
铝酸钡纳米片25-45％、呋喃树脂20-25％、聚丙烯5-10％、乙烯乙酸酯-乙烯共聚乳液20-25％、甲基硅酸钠10-15％。
进一步的，所述铝酸钡纳米片的厚度为50-100nm，整个纳米片的尺寸为1-2μm。
本发明所提供的铝酸钡纳米片的具体制备方法如下：
以铝酸钠、乙酸钡作为原料，水为溶剂，其中铝酸钠与乙酸钡的摩尔比为1:1，将铝酸钠、乙酸钡与水均匀混合后置于反应容器内并密封，于温度120-200℃、保温12-48h，其中铝酸钠与乙酸钡的重量不大于水重量的50％。
本发明所提供的铝酸钡纳米片复合高温密封胶的具体制备方法如下：
按照上述质量比例称取铝酸钡纳米片、呋喃树脂、聚丙烯、乙烯乙酸酯-乙烯共聚乳液和甲基硅酸钠，然后将呋喃树脂、乙烯乙酸酯-乙烯共聚乳液和甲基硅酸钠混合，接着依次加入铝酸钡纳米片和聚丙烯，机械搅拌4-8小时混合均匀，最终得到了铝酸钡纳米片复合高温密封胶。
与现有技术相比，本发明具有以下技术效果：
1、本发明以高熔点、耐腐蚀的铝酸钡纳米片作为无机填料，呋喃树脂、聚丙烯和乙烯乙酸酯-乙烯共聚乳液作为胶粘剂，甲基硅酸钠作为防水剂，可以制备出铝酸钡纳米片复合高温密封胶。这种复合高温密封胶具有良好的密封性、耐高温、耐老化性、耐腐蚀性、热稳定性、阻燃性及耐水性能，在化工、冶金、材料等高温、腐蚀性介质的容器、阀门和管道等连接密封领域具有良好的应用前景。
2、本发明采用的铝酸钡纳米片熔点高、耐腐蚀性强、稳定性好、无毒和无污染，呋喃树脂、聚丙烯、乙烯乙酸酯-乙烯共聚乳液和甲基硅酸钠都是批量生产的原料，可以实现铝酸钡纳米片复合高温密封胶的批量制备。
附图说明
图1为实施例1制备的铝酸钡纳米片复合高温密封胶的SEM图像；
从图可以看出铝酸钡纳米片复合高温密封胶由纳米片和无规则颗粒构成，纳米片的厚度为50-100nm，整个纳米片的尺寸为1-2μm。
具体实施方式
以下结合具体实施例详述本发明，但本发明不局限于下述实施例。
实施例1
确定铝酸钡纳米片复合高温密封胶的质量百分比组成如下：
实施例2
确定铝酸钡纳米片复合高温密封胶的质量百分比组成如下：
实施例3
确定铝酸钡纳米片复合高温密封胶的质量百分比组成如下：
实施例4
确定铝酸钡纳米片复合高温密封胶的质量百分比组成如下：
实施例5
确定铝酸钡纳米片复合高温密封胶的质量百分比组成如下：
实施例6
确定铝酸钡纳米片复合高温密封胶的质量百分比组成如下：
实施例7
确定铝酸钡纳米片复合高温密封胶的质量百分比组成如下：
实施例8
确定铝酸钡纳米片复合高温密封胶的质量百分比组成如下：
本发明实施例1到实施例8所得铝酸钡纳米片复合高温密封胶的特征参数如表1所示：
表1

Claims (2)

1.一种铝酸钡纳米片复合高温密封胶，其特征在于：以质量百分比计，该复合高温密封胶的配方如下：
2.如权利要求1所述一种铝酸钡纳米片复合高温密封胶，其特征在于：所述铝酸钡纳米片的厚度为50-100nm，整个纳米片的尺寸为1-2μm。
CN201610960752.1A 2016-10-28 2016-10-28 一种铝酸钡纳米片复合高温密封胶 Pending CN106479410A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104017508A (zh) * 2014-06-20 2014-09-03 合肥长城制冷科技有限公司 一种铝板和铝管粘贴用导热胶膜
CN105086922A (zh) * 2015-08-07 2015-11-25 东莞市新星有机硅科技有限公司 一种新型有机硅导热胶及其制备方法
CN105175965A (zh) * 2015-09-06 2015-12-23 安徽工业大学 一种钼酸锂纳米棒电子封装材料

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104017508A (zh) * 2014-06-20 2014-09-03 合肥长城制冷科技有限公司 一种铝板和铝管粘贴用导热胶膜
CN105086922A (zh) * 2015-08-07 2015-11-25 东莞市新星有机硅科技有限公司 一种新型有机硅导热胶及其制备方法
CN105175965A (zh) * 2015-09-06 2015-12-23 安徽工业大学 一种钼酸锂纳米棒电子封装材料

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