CN101818012B - 弹性外墙涂料 - Google Patents

弹性外墙涂料 Download PDF

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Publication number
CN101818012B
CN101818012B CN200910009493A CN200910009493A CN101818012B CN 101818012 B CN101818012 B CN 101818012B CN 200910009493 A CN200910009493 A CN 200910009493A CN 200910009493 A CN200910009493 A CN 200910009493A CN 101818012 B CN101818012 B CN 101818012B
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parts
elastic
coating material
exterior coating
rohm
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CN101818012A (zh
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田凤兰
段文锋
王会元
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Woniushan Building Energy Saving Co ltd
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Beijing Oriental Yuhong Waterproof Technology Co Ltd
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Abstract

本发明提供了一种弹性外墙涂料,其中以质量份数计含有150~160份弹性乳液以及40~50份刚性乳液。本发明的弹性外墙涂料具有高粘结性能和高耐沾污性能。粘结强度达到2MPa,是其它弹性涂料的10倍;耐沾污性达到15%,是其它弹性涂料的2倍。通过添加多种增稠剂调节体系粘度,满足多种需要。

Description

弹性外墙涂料
技术领域:
本发明涉及建筑涂料领域,特别是一种用于建筑外墙的弹性外墙涂料。
背景技术:
在普通建筑物外墙一般选用涂料进行装饰,以前的涂料为刚性涂料。大概在一年左右,混凝土、砖块等内部构造会因为气候变化带来热胀冷缩的现象,而各种墙体因热胀冷缩的程度不同,会产生内应力。当内应力作用到墙体表面即会影响外墙涂膜的整体性,从而出现开裂、起泡、甚至成片脱落的现象。具有弹性的外墙涂料会随着墙体的热胀冷缩而变形,进而保持涂膜的连续性,长久保持整体效果。
现有弹性外墙涂料多采用弹性丙烯酸类乳液,例如中国专利CN1333024公开含有自交联弹性乳液的涂料。但是弹性外墙涂料具有两个较大的缺点:一是涂膜与墙体的粘结效果差,因为只有涂膜自身的弹性大于涂膜与底材的粘结力才会产生弹性变形,否则就会失去弹性涂料的作用;二是弹性涂膜表面比刚性涂膜粘性大,当灰尘等落下时容易粘结在涂膜上,而影响涂膜外观。所以在弹性外墙涂料进行大规模应用的时候,努力解决上述两个问题也成为了弹性外墙涂料的重要课题。
发明内容:
本发明的目的在于克服一般弹性外墙涂料的缺点,提供一种粘结性好并且耐沾污性好的弹性外墙涂料。
本发明提供一种弹性外墙涂料,其中以质量份数计含有150~160份弹性乳液以及40~50份刚性乳液。
其中所述弹性乳液选自罗门哈斯易韧达2438M、易韧达3828、易韧达2848NG和路博润AE-960,所述刚性乳液为选自罗门哈斯百历摩AC-261P、巴斯夫安固力296DS。
所述的弹性外墙涂料,其中以质量份数计还含有:10~12份有机硅助剂,1~1.5份纤维素醚,2.5~3.5份增稠剂和1~2份流变改性剂。
中所述有机硅助剂为瓦克BS1306,所述纤维素醚选自山东赫达羟乙基纤维素醚,所述增稠剂选自罗门哈斯ASE-60,所述流变改性剂为罗门哈斯RM-8W。
所述的弹性外墙涂料,其中以质量份数计还含有,水55~60份、分散剂4~6份、消泡剂2~4份、抗冻剂8~12份、钛白粉40~50份、重质碳酸钙180~200份、防霉剂0.5份、多功能助剂2~3份、增稠剂2.5~3.5份、水性色浆适量。
同现有技术相比,本发明具备以下特点:
1)选用易韧达2438M等弹性和百历摩AC-261P等刚性两种乳液,起到取长补短的作用。通过弹性乳液维持涂膜的弹性,通过刚性乳液提高与基材的粘结性。该涂膜的延伸率达到300%以上,粘结强度达到2MPa,是一般弹性涂料的10倍。
2)选用有机硅助剂BS1306,BS1306为疏水助剂,加入到涂料体系中能够提高涂膜的耐沾污性,并使涂膜表面呈现“荷叶效应”。该涂膜的耐沾污性为15%,是一般弹性涂料的2倍。
3)选用羟乙基纤维素醚、流变改性剂和增稠剂三种起到增稠作用的助剂。因为三种增稠剂的作用方式不同,作用环境不同,所以在贮存、施工等不同状态下三种增稠剂会交替起主要作用。最终结果是贮存不分层、色浆不浮色、涂刷有厚度。
具体实施方式
以下计量均为质量份数
实施例1
  水   60份
  分散剂   4份
  消泡剂   2份
  抗冻剂   12份
  罗门哈斯易韧达2438M弹性乳液   160份
  罗门哈斯百历摩AC-261P刚性乳液   40份
  钛白粉   50份
  重质碳酸钙   180份
  防霉剂   0.5份
  流变改性剂   2份
  纤维素醚   1份
  BS1306   10份
  多功能助剂   3份
  罗门哈斯ASE-60   2.5份
  铁黑色浆   6份
实施例2
  水   55份
  分散剂   6份
  消泡剂   4份
  抗冻剂   10份
  易韧达3828弹性乳液   150份
  巴斯夫安固力296DS刚性乳液   50份
  钛白粉   40份
  重质碳酸钙   200份
  防霉剂   0.5份
  流变改性剂   2份
  纤维素醚   1.5份
  BS1306   12份
  多功能助剂   2.5份
  罗门哈斯ASE-60   3份
  铁红色浆   8份
实施例3
  水   58份
  分散剂   5份
  消泡剂   3份
  抗冻剂   8份
  路博润AE-960弹性乳液   155份
  巴斯夫安固力296DS刚性乳液   45份
  钛白粉   45份
  重质碳酸钙   190份
  防霉剂   0.5份
  流变改性剂   1.5份
  纤维素醚   1.5份
  BS1306   11份
  多功能助剂   2份
  罗门哈斯ASE-60   2.5份

Claims (4)

1.一种弹性外墙涂料,其中以质量份数计含有150~160份弹性乳液以及40~50份刚性乳液,10~12份有机硅助剂,其中所述弹性乳液选自罗门哈斯易韧达2438M、易韧达3828、易韧达2848NG和路博润AE-960,所述刚性乳液选自罗门哈斯百历摩AC-261P、巴斯夫安固力296DS,所述有机硅助剂为瓦克BS1306。
2.如权利要求1所述的弹性外墙涂料,其中以质量份数计还含有:1~1.5份纤维素醚,2.5~3.5份增稠剂和1~2份流变改性剂。
3.如权利要求2所述的弹性外墙涂料,其中所述纤维素醚选自羟乙基纤维素醚,所述增稠剂选自罗门哈斯ASE-60,所述流变改性剂为罗门哈斯RM-8W。
4.如权利要求3所述的弹性外墙涂料,其中以质量份数计还含有,水55~60份、分散剂4~6份、消泡剂2~4份、抗冻剂8~12份、钛白粉40~50份、重质碳酸钙180~200份、防霉剂0.5份、多功能助剂2~3份、水性色浆适量。
CN200910009493A 2009-02-26 2009-02-26 弹性外墙涂料 Expired - Fee Related CN101818012B (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102775899A (zh) * 2012-08-21 2012-11-14 富思特新材料科技有限公司 水性聚氨酯弹性涂料及其制备方法
CN103483883B (zh) * 2013-09-05 2016-04-13 鳄鱼制漆(上海)有限公司 一种高性能硅溶胶无机外墙涂料
CN104031492B (zh) * 2014-05-07 2016-06-01 江苏科技大学 一种水性弹性外墙涂料及其制备方法
CN104530982A (zh) * 2015-01-26 2015-04-22 欧美龙(南通)重防腐涂料有限公司 一种弹性外墙涂料配方
CN105255280B (zh) * 2015-09-30 2018-03-30 徐州卧牛山新型防水材料有限公司 一种在潮湿基层快速干燥的单组份丙烯酸酯类防水涂料
CN107118647A (zh) * 2017-06-20 2017-09-01 东台市明山石涂料有限公司 一种弹性外墙漆及其制备方法
CN109705692B (zh) * 2018-12-31 2021-04-02 中山市巴德富化工科技有限公司 一种具有超耐沾污性能的复合弹性乳液及其制备方法
CN110564237A (zh) * 2019-08-13 2019-12-13 安徽朗凯奇建材有限公司 一种金属屋面用防水材料及其制备方法
CN115651461A (zh) * 2022-09-02 2023-01-31 山东北方创信防水科技集团股份有限公司 一种防止喷涂速凝在夏季起泡的底漆及其制备工艺

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CN1333315A (zh) * 2000-07-11 2002-01-30 上海惠邦特种涂料有限公司 一种弹性建筑涂料
CN1394922A (zh) * 2002-08-02 2003-02-05 崔玉国 高弹外墙涂料及制备
CN1492009A (zh) * 2002-10-23 2004-04-28 北方工业大学 一种环保型砂壁状建筑涂料及其制备方法
CN1912031A (zh) * 2006-08-18 2007-02-14 浙江中成建工集团有限公司 一种超耐候高抗沾污复合弹性建筑涂料

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN1333315A (zh) * 2000-07-11 2002-01-30 上海惠邦特种涂料有限公司 一种弹性建筑涂料
CN1394922A (zh) * 2002-08-02 2003-02-05 崔玉国 高弹外墙涂料及制备
CN1492009A (zh) * 2002-10-23 2004-04-28 北方工业大学 一种环保型砂壁状建筑涂料及其制备方法
CN1912031A (zh) * 2006-08-18 2007-02-14 浙江中成建工集团有限公司 一种超耐候高抗沾污复合弹性建筑涂料

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