CN105503039B - 一种双组分膏状填缝剂 - Google Patents
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Abstract
本发明公开了一种双组分膏状填缝剂,该填缝剂包括A组分和B组分;A组分包括以下质量百分数的成分:水性聚合物树脂30‑40%、防冻剂0‑1.5%、润湿剂0.2‑0.5%、消泡剂0.2‑0.6%、分散剂1‑1.5%、填料40‑50%、光触媒10‑20%、憎水剂0.5‑1%、增稠剂0‑0.8%、杀菌防腐剂0.1‑0.2%,其余为水;B组分为水***联剂;使用时,将A组分与B组分按质量比20‑10:1混合均匀。本发明的填缝剂使用水性聚合物树脂为胶凝材料,没有泛碱的现象,不会影响填缝剂的美观。另外本发明的填缝剂涂膜耐水性好、不易被沾污、易清洁、可长时间在潮湿环境中使用,还可直接作为美缝剂单独使用。
Description
技术领域
本发明属于建筑化工材料的技术领域,具体涉及一种双组分膏状填缝剂。
背景技术
目前市场上常见的瓷砖填缝材料有水泥基填缝剂、膏状填缝剂。
水泥基的瓷砖填缝剂表面不密实,存在很多微孔,长时间会积聚很多灰尘和污垢,耐沾污性不好会影响填缝剂的美观,而且填缝剂长时间在潮湿环境中会滋生大量细菌和霉菌,从而对人体产生危害,不适用于厨房和卫生间等地的家庭装修。另外,水泥基的建筑材料基本都存在泛碱现象,特别是装饰材料,泛碱现象会严重影响装饰的美观。
膏状填缝剂的胶凝材料为聚合物乳液,不含水泥,基本不会有泛碱现象。单组分填缝剂虽然耐沾污性较好,但容易收缩塌陷,不但影响装饰美观,而且积聚在凹陷的粉尘等不易清扫干净,使填缝剂失去亮丽的光泽。
发明内容
为了解决现有技术中水泥基填缝剂和单组分填缝剂存在的不足,本发明提供了一种双组分膏状填缝剂。
本发明的双组分膏状填缝剂包括A组分和B组分;A组分包括以下质量百分数的成分:水性聚合物树脂30-40%、防冻剂0-1.5%、润湿剂0.2-0.5%、消泡剂0.2-0.6%、分散剂1-1.5%、填料40-50%、光触媒10-20%、憎水剂0.5-1%、增稠剂0-0.8%、杀菌防腐剂0.1-0.2%,其余为水;B组分为水***联剂;使用时,将A组分与B组分按质量比20-10:1混合均匀。
优选的,水性聚合物树脂为丙烯酸乳液、水性聚氨酯乳液中的一种。
优选的,防冻剂为乙二醇、丙二醇中的一种。
优选的,润湿剂为聚氧乙烯烷基芳基醚类表面活性剂、聚氧乙烯任基酚类表面活性剂、聚氧乙烯烷基酚醚类表面活性剂中的一种。
优选的,消泡剂为矿物油类消泡剂、有机硅类消泡剂中的至少一种。
优选的,分散剂为聚羧酸盐类分散剂。
优选的,填料为重质碳酸钙、轻质碳酸钙、石英粉、滑石粉中的至少一种。
优选的,光触媒为纳米二氧化钛、纳米氧化锌中的至少一种。
优选的,憎水剂为有机硅憎水剂、矿物油类憎水剂中的一种;增稠剂为羟乙基纤维素醚、碱溶胀型增稠剂、疏水改性丙烯酸类增稠剂、聚氨酯类增稠剂中的至少一种。
优选的,水***联剂为封闭型水性多异氰酸酯交联剂
本发明的有益效果为:
(1)本发明的填缝剂使用水性聚合物树脂为胶凝材料,没有泛碱的现象,不会影响填缝剂的美观。填缝剂组分中添加了憎水剂和光触媒,涂膜憎水性较强,能阻挡水分子的渗入,不易滋生细菌和霉菌。
(2)本发明的填缝剂涂膜耐水性好、不易被沾污、易清洁、可长时间在潮湿环境中使用。本发明的填缝剂为双组分,除了单组分填缝剂所具有的耐沾污性好、不易被沾污的优点,还具有不收缩开裂,不凹陷等特点,从而不会影响装饰美观,该填缝剂还可直接作为美缝剂单独使用。
具体实施方式
本发明的双组分膏状填缝剂包括A组分和B组分;A组分包括以下质量百分数的成分:水性聚合物树脂30-40%、防冻剂0-1.5%、润湿剂0.3-0.5%、消泡剂0.2-0.6%、分散剂1-1.5%、填料40-50%、光触媒10-20%、憎水剂0.5-1%、增稠剂0-0.8%、杀菌防腐剂0.1-0.2%,其余为水;B组分为水***联剂;使用时,将A组分与B组分按质量比20-10:1混合均匀。
优选的,水性聚合物树脂为丙烯酸乳液、聚氨酯乳液中的一种。丙烯酸乳液是一种具有羟值的丙烯酸乳液,其羟值功能单体可以为丙烯酸羟乙酯、甲基丙烯酸羟乙酯、丙烯酸羟丙酯、甲基丙烯酸羟丙酯中的一种;聚氨酯乳液是一种含羟基的脂肪族聚氨酯水性分散体,其多羟基功能单体可以为二羟基甲基丙烯酸。
优选的,防冻剂为乙二醇或丙二醇中的一种。
优选的,润湿剂为聚氧乙烯烷基芳基醚类表面活性剂、聚氧乙烯任基酚类表面活性剂、聚氧乙烯烷基酚醚类表面活性剂中的一种。
优选的,消泡剂为矿物油类消泡剂、有机硅类消泡剂中的至少一种。
优选的,分散剂为聚羧酸盐类分散剂。
优选的,填料为重质碳酸钙、轻质碳酸钙、石英粉、滑石粉中的至少一种,目数可以为200目、325目、400目、800目、1250目。
优选的,光触媒为纳米二氧化钛、纳米氧化锌中至少一种。光触媒具有杀菌防霉的作用,在潮湿的环境中可防止滋生细菌和发霉。
优选的,憎水剂为有机硅憎水剂、矿物油类憎水剂中的一种。
优选的,增稠剂为羟乙基纤维素醚、碱溶胀型增稠剂、疏水改性丙烯酸类增稠剂、聚氨酯类增稠剂中的至少一种。
优选的,水***联剂为封闭型水性多异氰酸酯交联剂,该交联剂主要作为水性含羟基多元醇树脂的架桥剂。
将上述质量百分数的水、水性聚合物树脂、防冻剂、润湿剂、分散剂、部分消泡剂加入分散缸中,低速分散至均匀;然后将上述质量百分数的填料、光触媒分别加入分散缸中,高速分散至粉料细度达到要求;降低分散速度,然后再加入剩余消泡剂,及上述质量百分数的憎水剂、增稠剂、杀菌防腐剂,并调整到合适的粘度,分散一段时间至均匀即可得A组分。
使用时,将A组分和B组分按质量比20-10:1混合均匀。
下面结合实施例对本发明进行详细地解释说明。
实施例1
本发明的双组分膏状填缝剂包括A组分和B组分。
A组分包括以下质量百分数的成分:丙烯酸乳液35%、聚氧乙烯烷基芳基醚类表面活性剂0.2%、有机硅类消泡剂0.5%、聚丙烯酸钠盐类分散剂1%、800目重质碳酸钙40%、纳米二氧化钛15%、有机硅憎水剂0.5%、疏水改性丙烯酸类增稠剂0.7%、杀菌防腐剂0.1%、水7%。
B组分为封闭型水性多异氰酸酯类交联剂。
使用时,将A组分与B组分按质量比20:1混合均匀。
实施例2
本发明的双组分膏状填缝剂包括A组分和B组分。
A组分包括以下质量百分数的成分:水性聚氨酯乳液40%、丙二醇1%、聚氧乙烯烷基芳基醚类表面活性剂0.3%、有机硅类消泡剂0.6%、聚丙烯酸铵盐类分散剂1%、重质碳酸钙35%、轻质碳酸钙10%、纳米氧化锌4%、纳米二氧化钛5%、有机硅憎水剂1.5%、聚氨酯类增稠剂0.5%、杀菌防腐剂0.1%、水1%。
B组分为封闭型水性多异氰酸酯类交联剂。
使用时,将A、B组分按质量比15:1混合均匀。
实施例3
本发明的双组分膏状填缝剂包括A组分和B组分。
A组分包括以下质量百分数的成分:水性聚氨酯乳液30%、乙二醇1.5%、聚氧乙烯任基酚类表面活性剂0.2%、矿物油类消泡剂0.6%、聚丙烯酸铵盐类分散剂1.2%、重质碳酸钙20%、石英粉20%、纳米氧化锌20%、有机硅憎水剂1%、羟乙基纤维素醚0.3%、杀菌防腐剂0.2%、水5%。
B组分为封闭型水性多异氰酸酯类交联剂。
使用时,将A、B组分按质量比18:1混合均匀。
实施例4
本发明的双组分膏状填缝剂包括A组分和B组分。
A组分包括以下质量百分数的成分:丙烯酸乳液40%、丙二醇1%、聚氧乙烯烷基酚醚类表面活性剂0.3%、有机硅类消泡剂0.2%、聚丙烯酸铵盐类分散剂1.5%、石英粉34%、轻质碳酸钙10%、纳米氧化锌5%、纳米二氧化钛5%、有机硅憎水剂1%、碱溶胀型增稠剂0.8%、杀菌防腐剂0.2%、水1%。
B组分为封闭型水性多异氰酸酯类交联剂。
使用时,将A、B组分按质量比18:1混合均匀。
实施例5
本发明的双组分膏状填缝剂包括A组分和B组分。
A组分包括以下质量百分数的成分:水性聚氨酯乳液32%、丙二醇1%、聚氧乙烯烷基酚醚类表面活性剂0.5%、矿物油类消泡剂0.6%、聚丙烯酸铵盐类分散剂1%、重质碳酸钙35%、滑石粉15%、纳米氧化锌10%、有机硅憎水剂1%、聚氨酯类增稠剂0.7%、杀菌防腐剂0.2%、水3%。
B组分为封闭型水性多异氰酸酯类交联剂。
使用时,将A、B组分按质量比16:1混合均匀。
对比实验
将本发明申请的填缝剂与市面上的现有产品(环氧树脂)的填缝剂,分别进行耐紫外性、耐低温性、耐油性、耐水性实验。
填缝剂的使用场所:家装地砖缝(尤其是厨房和卫生间),高档别墅的内外墙等瓷砖缝。
根据GB/T 23986-2009色漆和清漆挥发性有机化合物(VOC)含量的测定中描述的方法,测定本发明申请的填缝剂与市面上现有产品的VOC含量。
耐紫外性实验:将成型3mm厚的试件放入紫外老化试验箱中辐照168h,观察试件状态。
耐低温性实验:将成型3mm厚的试件放入-20℃的低温冷冻箱中48h,观察试件状态。
耐油性实验:将成型3mm厚的试件浸泡在油介质中48h,观察试件状态。
耐水性实验:将成型3mm厚的试件浸泡在水中48h,观察试件状态。
实验结果如表1所示。本发明为水性产品,相对溶剂型填缝剂有较低的VOC含量,所以用于家装更环保,不会对人体产生危害。本发明的填缝剂为丙烯酸/聚氨酯体系,具有优异的耐候性能和耐老化性能,使用寿命更长久;本发明填缝剂还具有很好的耐油性和耐水性,适用于厨房和卫生间等潮湿地方。
表1本发明的填缝剂与市面上的现有产品的技术指标
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。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 (8)
1.一种双组分膏状填缝剂,其特征在于,该填缝剂包括A组分和B组分;A组分包括以下质量百分数的成分:水性聚合物树脂30-40%、防冻剂0-1.5%、润湿剂0.2-0.5%、消泡剂0.2-0.6%、分散剂1-1.5%、填料40-50%、光触媒10-20%、憎水剂0.5-1%、增稠剂0-0.8%、杀菌防腐剂0.1-0.2%,其余为水;B组分为水***联剂;使用时,将A组分与B组分按质量比20-10:1混合均匀;
水性聚合物树脂为丙烯酸乳液、水性聚氨酯乳液中的一种;水***联剂为封闭型水性多异氰酸酯交联剂。
2.根据权利要求1所述的双组分膏状填缝剂,其特征在于,防冻剂为乙二醇、丙二醇中的一种。
3.根据权利要求1所述的双组分膏状填缝剂,其特征在于,润湿剂为聚氧乙烯烷基芳基醚类表面活性剂、聚氧乙烯任基酚类表面活性剂、聚氧乙烯烷基酚醚类表面活性剂中的一种。
4.根据权利要求1所述的双组分膏状填缝剂,其特征在于,消泡剂为矿物油类消泡剂、有机硅类消泡剂中的至少一种。
5.根据权利要求1所述的双组分膏状填缝剂,其特征在于,分散剂为聚羧酸盐类分散剂。
6.根据权利要求1所述的双组分膏状填缝剂,其特征在于,填料为重质碳酸钙、轻质碳酸钙、石英粉、滑石粉中的至少一种。
7.根据权利要求1所述的双组分膏状填缝剂,其特征在于,光触媒为纳米二氧化钛、纳米氧化锌中的至少一种。
8.根据权利要求1所述的双组分膏状填缝剂,其特征在于,憎水剂为有机硅憎水剂、矿物油类憎水剂中的一种;增稠剂为羟乙基纤维素醚、碱溶胀型增稠剂、疏水改性丙烯酸类增稠剂、聚氨酯类增稠剂中的至少一种。
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