CN110128909A - 一种防腐隔热水性环氧底面合一涂料及其制备方法 - Google Patents
一种防腐隔热水性环氧底面合一涂料及其制备方法 Download PDFInfo
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Abstract
本发明涉及涂料技术领域,具体公开一种防腐隔热水性环氧底面合一涂料及其制备方法。所述涂料通过对乳液和固化剂进行选择,并调整助剂的种类和用量,使漆膜具有优异的防腐隔热效果和良好的力学性能。该涂料的制备方法是按照特定的顺序将各组分依此混匀即可,方法简单,不需特殊设备,适于工业化应用。
Description
技术领域
本发明涉及工业涂料技术领域,具体涉及一种防腐隔热水性环氧底面合一涂料及其制备方法。
背景技术
现在,国内传统的防腐涂装体系主要有两种,分别是底漆+中涂漆+面漆复合防腐涂层体系或底漆+面漆复合防腐涂层体系。其中底漆主要对基材表面进行保护,同时提供良好的附着力和防腐性能;中涂漆的主要主要起到修补填充作用,使基材表面平整,利于面漆涂装,面漆主要起到装饰保护作用,具有高硬度、高耐磨性、高化学性能等特点。但这两种涂装工艺复杂、施工周期长、易造成整个涂层体系的配套性不好。
工业上还有许多场景在防腐要求的前提下同时要求较好的隔热性能,如储油罐。储油罐是一种储存油品的容器,是油库的主要设施,在管道运输中是输油管的油源接口。储油罐按材质可分为非金属油罐和金属油罐两大类。其中金属油罐因造价低、不易渗漏、施工方便、维护容易而得到广泛使用。由于金属的易腐蚀性和使用环境较为恶劣,该种材质的储油罐需涂覆防腐隔热涂料。目前油储罐用水性防腐隔热涂料一般是底漆+中涂+面漆,或底漆+面漆的复合涂层体系,其中底漆主要对基材表面进行保护,同时提供良好的附着力和防腐性能,中涂漆主要起到修补填充作用,使基材表面平整,利于面漆涂装,面漆主要起到装饰保护作用,具有高硬度、高耐磨性、高化学性能等特点。但这两种涂装工艺复杂,施工周期长,涂层间附着力不理想,整个涂层体系的配套性不好。
发明内容
针对以上技术现状,本发明提供一种防腐隔热水性环氧底面合一涂料及其制备方法。
为达到上述发明目的,本发明采用了如下的技术方案:
一种防腐隔热水性环氧底面合一涂料,由质量比5~6:1的A组分和B组分组成;
其中,A组分的原料质量组成如下:45-56%的水性环氧乳液,0.5-2%的水溶性封闭剂,30-40%的颜填料,0.3-0.4%的消泡剂,2-3%的分散剂,0.5-1%的基材润湿剂,1-2%的增稠剂,0.5-1%的防沉剂,0.2-0.5%的防锈助剂,1-3%的紫外线吸收剂,余量的去离子水;所述水性环氧乳液为质量比1:1~5的PZ 3961-1环氧乳液和STW603环氧乳液的混合物;所述水溶性封闭剂为DM-501;
B组分的原料质量组成如下:65~75%的胺类固化剂,25~35%的去离子水;所述胺类固化剂为质量比1:1~2.5的STW-703B和Aradur 3986的混合物。
本发明选择特定比例的PZ 3961-1和STW603环氧乳液作为成膜物质,PZ3961-1具有干燥速度快、附着力高、柔韧性好、硬度高、防腐性能良好等特性,STW603固含高,表干速度快,乳液粒径小,和PZ 3961-1混配有利于漆膜的充分固化,为漆膜优良的防腐性能提供了有力保障,并且,这两种环氧乳液搭配特定比例的颜填料,能有效反射和辐射红外线,使漆膜具有优异的隔热效果。上述混合环氧乳液搭配STW-703B和Aradur 3986固化剂,使漆膜快速固化和干燥,同时进一步提高漆膜的硬度和耐磨性。A组分中加入一定量的DM-501封闭剂,配合紫外线吸收剂,并调整其他助剂的种类和比例,能使漆膜表面形成光亮饱满的封闭膜层,使漆膜具有优异的防变色和防渗透性,大大提升漆膜的防腐隔热性能。
优选地,所述颜填料包括质量比10:1:(6~10):(2~5):(16~20):(2~5)的三聚磷酸铝、钛白粉、硅酸铝锌、超细硫酸钡、硅酸钙和碳黑。优选的颜填料不含铅、铬等重金属,和上述环氧乳液混配,使漆膜对金属基材具有良好的附着力,通过钝化和置换反应双重作用提高防腐性能,且能最大限度地反射和辐射红外线,进一步提高漆膜的隔热性。
优选地,所述消泡剂为质量比1:0.5~2的磷酸酯类消泡剂和有机硅类消泡剂的混合物,如法国先创的941PL和毕克的BYK-028;所述分散剂为含颜料亲和基团的高分子量嵌段共聚物溶液,如毕克的BYK-190或BYK-194;所述基材润湿剂为聚醚硅氧烷共聚物、非离子有机表面活性剂和有机硅双生结构表面活性剂中的至少一种,如迪高的Tego-100、Tego-510和tego-4100;所述增稠剂为碱溶胀缔合型增稠剂,如罗门哈斯的RM-12W;所述防沉剂为改性蜡乳液,如毕克的AQUATIX-8421;所述防锈助剂为氨基羧酸盐类助剂,如海洛斯的Flash-X 150;所述紫外线吸收剂为苯并三氮唑,如优卡930。
优选的各助剂可更进一步提高涂料的防腐隔热性,并提高易施工性。
本发明还提供上述防腐隔热水性环氧底面合一涂料的制备方法,包括以下步骤:
步骤a,按照A组分的原料配比将所述去离子水的60%、消泡剂、分散剂、颜填料、防沉剂依次加入备料锅中,搅拌,研磨得到前期浆;
步骤b,将水性环氧乳液和剩余去离子水依次加入调漆罐中,搅拌至均匀;
步骤c,把所述前期浆倒入所述调漆罐,搅拌均匀;
步骤d,向所述调漆罐中加入基材润湿剂、防锈助剂,水溶性封闭剂和紫外线吸收剂,搅拌均匀,最后加入增稠剂调整粘度,即得A组分;
步骤e,按照所述B组分的原料配比取胺类固化剂和去离子水,混匀即为B组分。
优选地,步骤a中,所述搅拌为600~800r/min下15~25min,所述研磨的细度为≤20μm。
优选地,步骤b中,所述搅拌为300~600r/min下10~15min。
优选地,步骤c中,所述搅拌为500~800r/min下10~15min。
优选地,步骤d中,所述搅拌为300~500r/min下10~15min。
本发明涂料的制备方法简单,不需要使用特殊设备,适于工业化生产应用。优选的搅拌和研磨条件使各组分之间充分接触,制备的涂料贮存性能稳定,施工性能良好。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
实施例1
本实施例的防腐隔热水性环氧底面合一涂料,由质量比6:1的A组分和B组分组成。
其中,A组分的原料质量组成如下:25%的PZ 3961-1环氧乳液,28.6%的STW603环氧乳液,0.5%的DM-501水溶性封闭剂,30%的颜填料(三聚磷酸铝:钛白粉:硅酸铝锌:硫酸钡:硅酸钙:碳黑=10:10:2:16:4:1),0.4%的消泡剂(941PL:BYK-028=1:1),2%的分散剂BYK-190,1%的基材润湿剂Tego-100,2%的增稠剂RM-12W,0.5%的防沉剂AQUATIX-8421,0.5%的防锈助剂Flash-X 150,1%的紫外线吸收剂优卡930,8.5%的去离子水;
B组分的原料质量组成如下:30%的STW-703B固化剂,40%的Aradur3986固化剂,30%的去离子水。
本实施例涂料的制备方法如下:
步骤a,按照A组分的原料配比将所述去离子水的60%、消泡剂、分散剂、颜填料、防沉剂依次加入备料锅中,600r/min下搅拌25min,研磨至细度≤20μm得到前期浆;
步骤b,将水性环氧乳液和剩余去离子水依次加入调漆罐中,600r/min下搅拌10min;
步骤c,把所述前期浆倒入所述调漆罐,500r/min下搅拌15min;
步骤d,向所述调漆罐中加入基材润湿剂、防锈助剂,水溶性封闭剂和紫外线吸收剂,500r/min下搅拌10min,最后加入增稠剂调整粘度,即得A组分;
步骤e,按照所述B组分的原料配比取胺类固化剂和去离子水,混匀即为B组分。
使用时将A组分和B组分按比例混匀后进行涂装。
实施例2
本实施例的防腐隔热水性环氧底面合一涂料,由质量比5:1的A组分和B组分组成。
其中,A组分的原料质量组成如下:20%的PZ 3961-1环氧乳液,25%的STW603环氧乳液,0.5%的DM-501水溶性封闭剂,40%的颜填料(三聚磷酸铝:钛白粉:硅酸铝锌:硫酸钡:硅酸钙:碳黑=7:10:3:20:5:1),0.3%的消泡剂(941PL:BYK-028=2:1),3%的分散剂BYK-190,1%的基材润湿剂Tego-100,2%的增稠剂RM-12W,0.5%的防沉剂AQUATIX-8421,0.3%的防锈助剂Flash-X 150,2%的紫外线吸收剂优卡930,5.4%的去离子水;
B组分的原料质量组成如下:35%的STW-703B固化剂,35%的Aradur3986固化剂,30%的去离子水。
本实施例涂料的制备方法如下:
步骤a,按照A组分的原料配比将所述去离子水的60%、消泡剂、分散剂、颜填料、防沉剂依次加入备料锅中,600~800r/min下搅拌15~25min,研磨至细度≤20μm得到前期浆;
步骤b,将水性环氧乳液和剩余去离子水依次加入调漆罐中,300~600r/min下搅拌10~15min;
步骤c,把所述前期浆倒入所述调漆罐,500~800r/min下搅拌10~15min;
步骤d,向所述调漆罐中加入基材润湿剂、防锈助剂,水溶性封闭剂和紫外线吸收剂,300~500r/min下搅拌10~15min,最后加入增稠剂调整粘度,即得A组分;
步骤e,按照所述B组分的原料配比取胺类固化剂和去离子水,混匀即为B组分。
使用时将A组分和B组分按比例混匀后进行涂装。
实施例3
本实施例的防腐隔热水性环氧底面合一涂料,由质量比6:1的A组分和B组分组成。
其中,A组分的原料质量组成如下:15%的PZ 3961-1环氧乳液,38%的STW603环氧乳液,1%的DM-501水溶性封闭剂,30%的颜填料(三聚磷酸铝:钛白粉:硅酸铝锌:硫酸钡:硅酸钙:碳黑=8:10:4:16:2:1),0.3%的消泡剂(941PL:BYK-028=2:1),3%的分散剂BYK-190,0.6%的基材润湿剂Tego-100,1.5%的增稠剂RM-12W,1%的防沉剂AQUATIX-8421,0.3%的防锈助剂Flash-X 150,3%的紫外线吸收剂优卡930,6.3%的去离子水;
B组分的原料质量组成如下:20%的STW-703B固化剂,50%的Aradur3986固化剂,30%的去离子水。
本实施例涂料的制备方法如下:
步骤a,按照A组分的原料配比将所述去离子水的60%、消泡剂、分散剂、颜填料、防沉剂依次加入备料锅中,600~800r/min下搅拌15~25min,研磨至细度≤20μm得到前期浆;
步骤b,将水性环氧乳液和剩余去离子水依次加入调漆罐中,300~600r/min下搅拌10~15min;
步骤c,把所述前期浆倒入所述调漆罐,500~800r/min下搅拌10~15min;
步骤d,向所述调漆罐中加入基材润湿剂、防锈助剂,水溶性封闭剂和紫外线吸收剂,300~500r/min下搅拌10~15min,最后加入增稠剂调整粘度,即得A组分;
步骤e,按照所述B组分的原料配比取胺类固化剂和去离子水,混匀即为B组分。
使用时将A组分和B组分按比例混匀后进行涂装。
实施例4
本实施例的防腐隔热水性环氧底面合一涂料,由质量比6:1的A组分和B组分组成。
其中,A组分的原料质量组成如下:12%的PZ 3961-1环氧乳液,43%的STW603环氧乳液,1%的DM-501水溶性封闭剂,30%的颜填料(三聚磷酸铝:钛白粉:硅酸铝锌:硫酸钡:硅酸钙:碳黑=10:10:5:16:3:1),0.3%的消泡剂(941PL:BYK-028=1:2),3%的分散剂BYK-190,0.6%的基材润湿剂Tego-100,1.5%的增稠剂RM-12W,0.5%的防沉剂AQUATIX-8421,0.3%的防锈助剂Flash-X 150,2%的紫外线吸收剂优卡930,5.8%的去离子水;
B组分的原料质量组成如下:35%的STW-703B固化剂,40%的Aradur3986固化剂,25%的去离子水。
本实施例涂料的制备方法和实施例1相同。
实施例5
本实施例的防腐隔热水性环氧底面合一涂料,由质量比6:1的A组分和B组分组成。
其中,A组分的原料质量组成如下:10%的PZ 3961-1环氧乳液,46%的STW603环氧乳液,2%的DM-501水溶性封闭剂,30%的颜填料(三聚磷酸铝:钛白粉:硅酸铝锌:硫酸钡:硅酸钙:碳黑=6:10:2:16:5:1),0.3%的消泡剂(941PL:BYK-028=1:1),2%的分散剂BYK-190,1%的基材润湿剂Tego-100,1-2%的增稠剂RM-12W,0.5%的防沉剂AQUATIX-8421,0.2%的防锈助剂Flash-X 150,2%的紫外线吸收剂优卡930,4.5%的去离子水;
B组分的原料质量组成如下:30%的STW-703B固化剂,35%的Aradur3986固化剂,35%的去离子水。
本实施例涂料的制备方法和实施例1相同。
对比例1
将实施例1中的STW603环氧乳液替换为650,其他与实施例1相同。
对比例2
将实施例1中的Aradur 3986固化剂替换为WH-900,其他与实施例1相同。
对比例3
将实施例1中的DM-501封闭剂替换为酷克W8封闭剂,其他与实施例1相同。
对实施例1和对比例1~3的涂料进行性能检测,检测项目和标准如表1所示:
表1漆膜性能检测项目和要求
检测结果如表2所示。
表2漆膜性能检测结果
实施例2~5的涂料与实施例1效果相当,在此不再赘述。
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、等同替换或改进等,均应包含在本发明的保护范围之内。
Claims (8)
1.一种防腐隔热水性环氧底面合一涂料,其特征在于,由质量比5~6:1的A组分和B组分组成;
其中,A组分的原料质量组成如下:45-56%的水性环氧乳液,0.5-2%的水溶性封闭剂,30-40%的颜填料,0.3-0.4%的消泡剂,2-3%的分散剂,0.5-1%的基材润湿剂,1-2%的增稠剂,0.5-1%的防沉剂,0.2-0.5%的防锈助剂,1-3%的紫外线吸收剂,余量的去离子水;所述水性环氧乳液为质量比1:1~5的PZ 3961-1环氧乳液和STW603环氧乳液的混合物;所述水溶性封闭剂为DM-501;
B组分的原料质量组成如下:65~75%的胺类固化剂,25~35%的去离子水;所述胺类固化剂为质量比1:1~2.5的STW-703B和Aradur 3986的混合物。
2.如权利要求1所述的防腐隔热水性环氧底面合一涂料,其特征在于,所述颜填料包括质量比10:1:(6~10):(2~5):(16~20):(2~5)的钛白粉、碳黑、三聚磷酸铝、硅酸铝锌、硫酸钡和硅酸钙。
3.如权利要求1所述的防腐隔热水性环氧底面合一涂料,其特征在于,所述消泡剂为质量比1:0.5~2的磷酸酯类消泡剂和有机硅类消泡剂的混合物;和/或:
所述分散剂为含颜料亲和基团的高分子量嵌段共聚物溶液;和/或:
所述基材润湿剂为聚醚硅氧烷共聚物、非离子有机表面活性剂和有机硅双生结构表面活性剂中的至少一种;和/或:
所述增稠剂为碱溶胀缔合型增稠剂;和/或:
所述防沉剂为改性蜡乳液;和/或:
所述防锈助剂为氨基羧酸盐类助剂;和/或:
所述紫外线吸收剂为苯并三氮唑。
4.如权利要求1~3任一项所述防腐隔热水性环氧底面合一涂料的制备方法,其特征在于,包括以下步骤:
步骤a,按照A组分的原料配比将所述去离子水的60%、消泡剂、分散剂、颜填料、防沉剂依次加入备料锅中,搅拌,研磨得到前期浆;
步骤b,将水性环氧乳液和剩余去离子水依次加入调漆罐中,搅拌至均匀;
步骤c,把所述前期浆倒入所述调漆罐,搅拌均匀;
步骤d,向所述调漆罐中加入基材润湿剂、防锈助剂,水溶性封闭剂和紫外线吸收剂,搅拌均匀,最后加入增稠剂调整粘度,即得A组分;
步骤e,按照所述B组分的原料配比取胺类固化剂和去离子水,混匀即为B组分。
5.如权利要求4所述的防腐隔热水性环氧底面合一涂料的制备方法,其特征在于,步骤a中,所述搅拌为600~800r/min下15~25min,所述研磨的细度为≤20μm。
6.如权利要求4所述的防腐隔热水性环氧底面合一涂料的制备方法,其特征在于,步骤b中,所述搅拌为300~600r/min下10~15min。
7.如权利要求4所述的防腐隔热水性环氧底面合一涂料的制备方法,其特征在于,步骤c中,所述搅拌为500~800r/min下10~15min。
8.如权利要求4所述的防腐隔热水性环氧底面合一涂料的制备方法,其特征在于,步骤d中,所述搅拌为300~500r/min下10~15min。
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