CN113429852A - 一种软瓷表面自清洁复合涂层及其制备方法 - Google Patents

一种软瓷表面自清洁复合涂层及其制备方法 Download PDF

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CN113429852A
CN113429852A CN202110868864.5A CN202110868864A CN113429852A CN 113429852 A CN113429852 A CN 113429852A CN 202110868864 A CN202110868864 A CN 202110868864A CN 113429852 A CN113429852 A CN 113429852A
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陆洪彬
唐伟
唐少春
杨贝贝
宾端
朱西挺
张莉芳
郭其阳
毛忠伟
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HAIAN INSTITUTE OF HIGH-TECH RESEARCH NANJING UNIVERSITY
Nantong University
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Abstract

本发明公开了一种软瓷表面自清洁复合涂层及其制备方法,其技术方案是:复合涂层为双层结构,底层为丙烯酸‑环氧树脂涂层,表层为添加疏水纳米SiO2气凝胶的氟碳涂层。本发明相比普通自清洁涂层,表层可以提供优良的疏水和耐候性能,底层丙烯酸‑环氧树脂可以提高与软瓷基底的结合力,解决氟碳涂层质脆易开裂的问题,为软瓷表面提供持久的自清洁效果。

Description

一种软瓷表面自清洁复合涂层及其制备方法
技术领域
本发明涉及软瓷表面自清洁涂层及其制备方法,属于新型建筑材料领域。
背景技术
软瓷作为新一代环保装饰材料,其轻质、防火、装饰性强、可柔性弯曲的特点解决了现代建筑外墙装饰方面很多痛点问题。但由于轻薄柔的特点,也给它带来很多的问题,其中最突出的便是软瓷的耐污和清洁问题;由于软瓷表面质地柔软,清洁表面只能用水冲洗而不能采用硬物擦拭,极大限制了软瓷的应用,比如在客厅、办公室、会议室等人员密集活动场所就不适合使用软瓷,为了解决软瓷表面耐污和清洁问题,可以通过涂层提高软瓷表面硬度和耐污性,拓展软瓷的应用领域。
目前软瓷表面清洁问题多采用传统丙烯酸酯自清洁涂层,这种方式表面硬度不足,自清洁效果一般,并且清洁效果衰减很严重;氟碳涂层作为广泛应用的自清洁涂层具有自清洁效果好、耐老化、硬度高的特点,然而这种涂层直接应用于软瓷材料表面会带来诸多问题,集中表现对基材的容忍性差、附着力不佳,容易碎裂脱落,所以目前还未有在软瓷表面应用的报道。
为了克服上述问题,本发明提供了一种软瓷表面自清洁涂层及其制备方法。相比于传统自清洁涂层,本发明采用“丙烯酸酯-环氧树脂”的复合涂层作为底层,以此来提高表层氟碳涂层与软瓷的结合力,解决氟碳树脂脆性大、易脱落的问题,实现软瓷耐污自洁功效。
发明内容
本发明针对现有技术存在的缺陷,公开了一种软瓷表面自清洁复合涂层及其制备方法,为实现以上目标,本发明的具体实施方案如下:
一种软瓷表面自清洁复合涂层及其制备方法,其特征是:复合涂层为双层结构,底层为丙烯酸酯-环氧树脂涂层,表层为氟碳涂层。
进一步的,所述的底部丙烯酸酯-环氧树脂涂层的制备方法为:
①在100份水性丙烯酸酯乳液中加入20-40份去离子水稀释,在分散机中搅拌分散均匀;
②将疏水纳米SiO2气凝胶缓慢加入到稀释均匀的丙烯酸酯乳液中,提高分散速度至2000r/min,分散10-20min;降低转速至500r/min,然后加入20-40份的水性环氧树脂、0.5-2份消泡剂、0.5-2份流平剂,分散30min得到粗乳液,粗乳液过滤去颗粒,得到丙烯酸酯-环氧树脂乳液;
③将丙烯酸酯-环氧树脂喷涂于软瓷表面,在80-100℃下干燥15min。
进一步的,所述的氟碳涂层各组分比例(重量份)及其制备方法为:
氟碳树脂 30-50份
氨基树脂 3-5份
异氰酸酯 2-5份
分散剂 0.1-0.5份
润湿剂 0.5-1份
气凝胶 10-20份
溶剂 60-100份
①在2000r/min转速下,将气凝胶缓慢加入到溶剂中分散20min,然后加入分散剂、润湿剂搅拌分散均匀;
②降低转速至500r/min,加入氟碳树脂,分散搅拌至液体透明无明显胶状物质为止,然后加入异氰酸酯、氨基树脂,搅拌30min,过筛出料,得到氟碳涂料;
③将氟碳喷涂于丙烯酸酯涂层表面,在70-90℃下干燥30min。
进一步的,所述的丙烯酸乳液为硅丙乳液、纯丙乳液中的一种。
进一步的,所述的氟碳树脂为三氟乙烯基树脂。
进一步的,所述的气凝胶的比表面积为500-800m2/g。
进一步的,所述的溶剂为二甲苯、甲基异丁基酮、石油醚中的一种或多种。
具体实施方式
以下结合具体实施例对本发明的实施方案进一步说明。
实施例1
①将100份硅丙乳液加入20份去离子水稀释,在搅拌釜中搅拌分散均匀;
②将疏水纳米SiO2气凝胶缓慢加入到稀释均匀的丙烯酸酯乳液中,提高分散速度至2000r/min,分散10min;然后降低转速至500r/min,加入20份的水性环氧树脂、0.5份消泡剂、0.5份流平剂,分散30min得到粗乳液,粗乳液过滤去颗粒,得到丙烯酸酯-环氧树脂乳液;
③将丙烯酸酯-环氧树脂喷涂于软瓷表面,在80℃下干燥15min。
④取另一搅拌釜,在2000r/min转速下,将10份气凝胶缓慢加入到60份甲基异丁基酮中分散20min,然后加入0.1份分散剂、0.5份润湿剂搅拌分散均匀;
降低转速至500r/min,加入30份三氟乙烯基树脂,分散搅拌至液体透明无明显胶状物质为止,然后加入2份异氰酸酯、 3份氨基树脂,搅拌30min,过筛出料,得到氟碳涂料,将氟碳涂料喷涂于步骤③干燥后的涂层表面,在70℃下干燥30min得到软瓷自清洁复合涂层。
实施例2
①将100份纯丙乳液加入30份去离子水稀释,在分散机中搅拌分散均匀;
②将疏水纳米SiO2气凝胶缓慢加入到稀释均匀的丙烯酸酯乳液中,提高分散速度至2000r/min,分散12min;然后降低转速至500r/min,加入25份的水性环氧树脂、1份消泡剂、1份流平剂,分散30min得到粗乳液,粗乳液过滤去颗粒,得到丙烯酸酯-环氧树脂乳液;
③将丙烯酸酯-环氧树脂喷涂于软瓷表面,在80℃下干燥15min;
④取另一搅拌釜,在2000r/min转速下,将12份气凝胶缓慢加入到70份二甲苯中分散20min,然后加入0.2份分散剂、0.6份润湿剂搅拌分散均匀;
降低转速至500r/min,加入35份三氟乙烯基树脂,分散搅拌至液体透明无明显胶状物质为止,然后加入3份异氰酸酯、 3份氨基树脂,搅拌30min,过筛出料,得到氟碳涂料,将氟碳涂料喷涂于步骤③干燥后的涂层表面,在75℃下干燥30min得到软瓷自清洁复合涂层。
实施例3
①将100份硅丙乳液加入30份去离子水稀释,在分散机中搅拌分散均匀;
②将疏水纳米SiO2气凝胶缓慢加入到稀释均匀的丙烯酸酯乳液中,提高分散速度至2000r/min,分散15min;然后降低转速至500r/min,加入30份的水性环氧树脂、1份消泡剂、0.5份流平剂,分散30min得到粗乳液,粗乳液过滤去颗粒,得到丙烯酸酯-环氧树脂乳液;
③将丙烯酸酯-环氧树脂喷涂于软瓷表面,在烘房中100℃干燥15min;
④取另一搅拌釜,在2000r/min转速下,将15份气凝胶缓慢加入到80份石油醚中分散20min,然后加入0.4份分散剂、0.8份润湿剂搅拌分散均匀;
降低转速至500r/min,加入40份三氟乙烯基树脂,分散搅拌至液体透明无明显胶状物质为止,然后加入4份异氰酸酯、 4份氨基树脂,搅拌30min,过筛出料,得到氟碳涂料,将氟碳涂料喷涂于步骤③干燥后的涂层表面,在70℃下干燥30min得到软瓷自清洁复合涂层。
实施例4
①将100份硅丙乳液加入40份去离子水稀释,在分散机中搅拌分散均匀;
②将疏水纳米SiO2气凝胶缓慢加入到稀释均匀的丙烯酸酯乳液中,提高分散速度至2000r/min,分散20min;然后降低转速至500r/min,加入40份的水性环氧树脂、1.5份消泡剂、1.5份流平剂,分散30min得到粗乳液,粗乳液过滤去颗粒,得到丙烯酸酯-环氧树脂乳液;
③将丙烯酸酯-环氧树脂喷涂于软瓷表面,在80-100℃下干燥15min;
④取另一搅拌釜,在2000r/min转速下,将20份气凝胶缓慢加入到100份甲基异丁基酮中分散20min,然后加入0.5份分散剂、1份润湿剂搅拌分散均匀;
降低转速至500r/min,加入50份三氟乙烯基树脂,分散搅拌至液体透明无明显胶状物质为止,然后加入5份异氰酸酯、5份氨基树脂,搅拌30min,过筛出料,得到氟碳涂料,将氟碳涂料喷涂于步骤③干燥后的涂层表面,在90℃下干燥30min得到软瓷自清洁复合涂层。
实施例5
①将100份纯丙乳液加入40份去离子水稀释,在分散机中搅拌分散均匀;
②将疏水纳米SiO2气凝胶缓慢加入到稀释均匀的丙烯酸酯乳液中,提高分散速度至2000r/min,分散20min;然后降低转速至500r/min,加入40份的水性环氧树脂、1.5份消泡剂、1.5份流平剂,分散30min得到粗乳液,粗乳液过滤去颗粒,得到丙烯酸酯-环氧树脂乳液;
③将丙烯酸酯-环氧树脂喷涂于软瓷表面,在80-100℃下干燥15min;
④取另一搅拌釜,在2000r/min转速下,将20份气凝胶缓慢加入到100份石油醚中分散20min,然后加入0.5份分散剂、1份润湿剂搅拌分散均匀;
降低转速至500r/min,加入50份三氟乙烯基树脂,分散搅拌至液体透明无明显胶状物质为止,然后加入5份异氰酸酯、5份氨基树脂,搅拌30min,过筛出料,得到氟碳涂料,将氟碳涂料喷涂于步骤③干燥后的涂层表面在90℃下干燥30min得到软瓷自清洁复合涂层。

Claims (7)

1.一种软瓷表面自清洁复合涂层,其特征在于:复合涂层为双层结构,底层为丙烯酸酯-环氧树脂涂层,表层为氟碳涂层。
2.一种软瓷表面自清洁复合涂层的制备方法,其特征在于,底层丙烯酸酯-环氧树脂涂层的制备方法为:
①在100份水性丙烯酸酯乳液中加入20-40份去离子水稀释,在分散机中搅拌分散均匀;
②将2-5份疏水纳米SiO2气凝胶缓慢加入到稀释均匀的丙烯酸酯乳液中,提高分散速度至2000r/min,分散10-20min;降低转速至500r/min,然后加入20-40份的水性环氧树脂、0.5-2份消泡剂、0.5-2份流平剂,分散30min得到粗乳液,粗乳液过滤去颗粒,得到丙烯酸酯-环氧树脂乳液;
③将丙烯酸酯-环氧树脂喷涂于软瓷表面,在80-100℃下干燥15min。
3.根据权利要求2所述的一种软瓷表面自清洁复合涂层的制备方法,其特征在于,表层氟碳涂层的制备方法为:
氟碳树脂 30-50份
氨基树脂 3-5份
异氰酸酯 2-5份
分散剂 0.1-0.5份
润湿剂 0.5-1份
气凝胶 10-20份
溶剂 60-100份
①按如下组分比例(重量份)称量各原料;
氟碳树脂 30-50份
氨基树脂 3-5份
异氰酸酯 2-5份
分散剂 0.1-0.5份
润湿剂 0.5-1份
气凝胶 10-20份
溶剂 60-100份
②在2000r/min转速下,将气凝胶缓慢加入到溶剂中分散20min,然后加入分散剂、润湿剂搅拌分散均匀;
③降低转速至500r/min,加入氟碳树脂,分散搅拌至液体无明显胶状物质为止,然后加入异氰酸酯、氨基树脂,搅拌30min,过筛出料,得到氟碳涂料;
④将氟碳涂料喷涂于底层丙烯酸-环氧涂层表面,在烘房中70-90℃干燥30min。
4.根据权利要求2所述的一种软瓷表面自清洁复合涂层的制备方法,其特征在于丙烯酸乳液为硅丙乳液、纯丙乳液中的一种。
5.根据权利要求3所述的一种软瓷表面自清洁复合涂层的制备方法,其特征在于氟碳树脂为三氟乙烯基树脂。
6.根据权利要求2所述的一种软瓷表面自清洁复合涂层的制备方法,其特征在于气凝胶的比表面积为500-800m2/g。
7.根据权利要求2所述的一种软瓷表面自清洁复合涂层的制备方法,其特征在于溶剂为二甲苯、甲基异丁基酮、石油醚中的一种或多种。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1390528A (en) * 1971-10-30 1975-04-16 Daikin Ind Ltd Primer for hydrofluorocarbon polymer coating
US4743492A (en) * 1986-06-20 1988-05-10 E. I. Du Pont De Nemours And Company Two layer coating system for polyvinyl fluoride coatings
CN1039041A (zh) * 1988-06-29 1990-01-24 阿托化学公司 新颖的氟化涂料的粘附涂底剂组合物
JP2001164173A (ja) * 1999-12-13 2001-06-19 Asahi Glass Co Ltd 建材用塗装物品
CN103897462A (zh) * 2014-01-13 2014-07-02 杨宇奇 一种彩色热反射涂料及其制备方法和用途

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1390528A (en) * 1971-10-30 1975-04-16 Daikin Ind Ltd Primer for hydrofluorocarbon polymer coating
US4743492A (en) * 1986-06-20 1988-05-10 E. I. Du Pont De Nemours And Company Two layer coating system for polyvinyl fluoride coatings
CN1039041A (zh) * 1988-06-29 1990-01-24 阿托化学公司 新颖的氟化涂料的粘附涂底剂组合物
JP2001164173A (ja) * 1999-12-13 2001-06-19 Asahi Glass Co Ltd 建材用塗装物品
CN103897462A (zh) * 2014-01-13 2014-07-02 杨宇奇 一种彩色热反射涂料及其制备方法和用途

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