CN115491109B - 一种含氟改性丙烯酸树脂光固化快速修补漆及其制备方法及应用 - Google Patents
一种含氟改性丙烯酸树脂光固化快速修补漆及其制备方法及应用 Download PDFInfo
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Abstract
本发明公开了一种含氟改性丙烯酸树脂光固化快速修补漆,其特征在于,所述涂料包括如下重量份数的各组分:含氟改性丙烯酸树脂15~30份;多官能团聚酯树脂25~45份;活性稀释剂15~30份;颜料5~20份;光引发剂1~5份。此含氟改性丙酸树脂可以通过紫外可见光照射进行辐射固化。本发明还公开了其制备方法和应用。与现有技术相比,本发明的含氟改性丙烯酸树脂光固化快速修补漆,具有施工操作简单,干燥速率快,对原有漆膜损伤小,同时具有较高外观及耐介质性能;适用不同颜色汽车漆面快速修补,使用方便,储存稳定性好。
Description
技术领域
本发明属于汽车快速修补漆技术领域,具体涉及一种含氟改性丙烯酸树脂光固化快速修补漆及其制备方法及应用。
背景技术
随着家用车及商用车的大面积普及,汽车在行驶或停放过程中极易出现轻微擦伤或碰伤,导致底漆外露甚至更严重的钢板外露,对于轻微的小面积磕碰,去进行整面面漆重喷,既花费十分巨大,费时费力,同时由于不是原厂原漆,在以后的使用中可能也会存在漆膜日晒后变色程度和原厂漆存在差异等缺点。但不处理又影响美观甚至影响汽车钢板锈蚀,这样就得不偿失了。
目前市面上的快速修补漆主要是采用溶剂型涂料,存在对底漆漆面有溶解渗透作用,一旦面积涂的不好无法再重复涂漆,造成涂漆效果差,同时漆膜光泽低,色差大等问题。
而采用光固化的快速修补漆则可以避免上述问题,对底漆漆膜渗透能力弱,可精确修补损伤部位。同时,采用含氟改性丙烯酸树的加入,漆膜表面能低,易清洁,光泽好,符合绿色、环保的趋势。
发明内容
本发明的目的在于克服上述现有技术存在的不足,提供一种含氟改性丙烯酸树脂光固化快速修补漆及其制备方法及应用。
本发明的目的是通过以下技术方案来实现的:
本发明涉及一种含氟改性丙烯酸树脂光固化快速修补漆,所述涂料包括如下重量份数的各组分:
在本发明的一个优选实施例中,所述含氟改性丙烯酸树脂为如下重量份数的各组分:
丙烯酸羟丁酯 5-15份;
苯乙烯 15-30份;
甲基丙烯酸甲酯 25-50份;
全氟葵基丙烯酸酯 10-25份;
引发剂 0.3-1.5份;
阻聚剂 0.1-1份;
单丙烯酸异氰酸乙酯 5-20份;
催化剂 0.05-0.2份。
在本发明的一个优选实施例中,所述阻聚剂为对羟基苯甲醚;
所述引发剂为过氧化二苯甲酰;
所述催化剂为二月桂酸二丁基锡。
在本发明的一个优选实施例中,所述含氟改性丙烯酸树脂由如下方法制备而成:
将所述丙烯酸羟丁酯、苯乙烯、甲基丙烯酸甲酯、全氟葵基丙烯酸酯,滴加引发剂1-2小时,在60-80℃下反应8-12小时制得含氟丙烯酸树脂;
再将含氟丙烯酸树脂与单丙烯酸异氰酸乙酯在催化剂和阻聚剂的作用下,在真空条件下,40-60℃反应5-8小时,通过反应引入可以参与光固化的双键,制得含氟改性丙烯酸酯树脂。
在本发明的一个优选实施例中,所述多官能团聚酯树脂为聚酯丙烯酸酯,其官能度为3-10。
在本发明的一个优选实施例中,所述活性稀释剂为己二醇二丙烯酸酯、三丙二醇二丙烯酸酯、二丙二醇二丙烯酸酯、丙烯酸异冰片酯、三羟甲基丙烷三丙烯酸酯中的一种或多种。
在本发明的一个优选实施例中,所述颜料为钛白、炭黑、氧化铁颜料、钒酸铋黄、金属氧化物混相颜料以及作为效果颜料的闪光铝粉或云母珠光粉中的一种或多种。
在本发明的一个优选实施例中,所述光引发剂为184、1173、369、TPO、819、127、BP中的一种或多种。
在本发明的一个优选实施例中,所述助剂为消泡剂和流平剂,如消泡剂BYK-020、流平剂BYK-368P。
一种含氟改性丙烯酸树脂光固化快速修补漆的制备方法,包括如下步骤:
将所述含氟改性丙烯酸树脂、多官能团聚酯树脂、活性稀释剂依次投入反应釜中,保持搅拌将所述颜料加入,在500-800rpm的速度下搅拌均匀;然后将所述光引发剂加入,搅拌均匀;冷却,即可出料。
一种含氟改性丙烯酸树脂光固化快速修补漆的应用,所述应用为涂布在汽车受损漆面表面,在UV/可见光的照射下固化。
具体为使用前混合均匀后,使用修补喷枪或自喷罐将涂料均匀的喷涂于漆面受损部位,然后采用专用紫外灯进行照射,完成固化反应。
具体实施方式
下面结合具体实施例对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明,但不以任何形式限制本发明。应当指出的是,对本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进。这些都属于本发明的保护范围。
实施例1-4
本发明实施例1-4提供了一种含氟改性丙烯酸树脂光固化快速修补漆,具体组分及含量如下表1所示;本实施例1-4的涂料的制备方法包括如下步骤;本发明实施例采用的活性稀释剂为聚乙二醇二丙烯酸。
该涂料的制备方法包括如下步骤:将含氟改性丙烯酸树脂、多官能团聚酯树脂、活性稀释剂依次投入反应釜中,保持搅拌将颜料加入,高速(500-800rpm)搅拌均匀;然后将光引发剂加入,搅拌均匀;冷却,即可出料。
表1.含氟改性丙烯酸树脂光固化快速修补漆配方
上表的含氟改性丙烯酸树脂具体由如下方式制备而成:
向安装有搅拌器的玻璃反应烧瓶中加入12.5份丙烯酸羟丁酯、26.0份苯乙烯、33.0份甲基丙烯酸甲酯、12.5份全氟葵基丙烯酸酯、1.0份引发剂(所采用的引发剂为过氧化二苯甲酰),在75℃下反应10小时,制得含氟丙烯酸树脂。
再将85份含氟丙烯酸树脂与14.75份单丙烯酸异氰酸乙酯在0.15份的催化剂(所采用的催化剂为二月桂酸二丁基锡)和0.1份阻聚剂(所采用的阻聚剂为对羟基苯甲醚)的作用下,在真空条件(10mmHg)下,40℃反应8小时,通过反应引入可以参与光固化的双键,制得表1当中的各实施例的含氟改性丙烯酸酯树脂。
该涂料使用包括以下工艺步骤:使用前混合均匀后,使用修补喷枪或自喷罐将涂料均匀的涂抹在漆面受损部位,然后采用紫外灯进行照射(紫外灯的参数为光谱365nm UVLED),完成固化反应。
对比例1
本对比例1提供了一种含氟改性丙烯酸树脂光固化快速修补漆,该涂料的具体组分和含量以及制备方法与实施例1基本一致,不同之处仅在于:本对比例中,含氟改性丙烯酸树脂10%,多官能团聚酯树脂20%,活性稀释剂的重量含量为40%。
对比例2
本对比例1提供了一种含氟改性丙烯酸树脂光固化快速修补漆,该涂料的具体组分和含量以及制备方法与实施例1基本一致,不同之处仅在于:本对比例中,无含氟改性丙烯酸树脂,多官能团聚酯树脂为50%。
性能测试
采用具体测试方法为实施例中涂料使用方法下得到的成品进行测试,对各实施例和对比例的漆膜性能进行测试,测试结果如下表2所示。
表2.实施例1-4,对比例1-2漆膜性能
以上对本发明的具体实施例1-4和对比例1-2的漆膜性能进行了描述。
可见,本发明实施例1-4与对比例1-2相比,漆膜干燥速率快于对比例(主要是通过固化程度的数据进行对比),漆膜硬度明显提升,由B/HB级别提升至F级别。
本发明的附着力明显提升,由1级提升至0级,耐水和耐汽油性能均达标。
需要理解的是,本发明并不局限于上述特定实施方式,本领域技术人员可以在权利要求的范围内做出各种变形或修改,这并不影响本发明的实质内容。
Claims (3)
1.一种含氟改性丙烯酸树脂光固化汽车快速修补漆,其特征在于,所述修补漆为如下重量份数的各组分:
含氟改性丙烯酸树脂 15 ~ 30份;
多官能团聚酯树脂 25 ~ 45份;
活性稀释剂 15 ~ 30份;
颜料 5 ~ 20份;
光引发剂 1 ~ 5份;
所述含氟改性丙烯酸树脂为如下重量份数的各组分:
丙烯酸羟丁酯 5-15份;
苯乙烯 15-30份;
甲基丙烯酸甲酯 25-50份;
全氟葵基丙烯酸酯 10-25份;
引发剂 0.3-1.5份;
阻聚剂 0.1-1份;
单丙烯酸异氰酸乙酯 5-20份;
催化剂 0.05-0.2份;
所述含氟改性丙烯酸树脂由如下方法制备而成:
将所述丙烯酸羟丁酯、苯乙烯、甲基丙烯酸甲酯、全氟葵基丙烯酸酯,滴加引发剂1-2小时,在60-80℃下反应8-12小时制得含氟丙烯酸树脂;
再将含氟丙烯酸树脂与单丙烯酸异氰酸乙酯在催化剂和阻聚剂的作用下,在真空条件下,40-60℃反应5-8小时,通过反应引入可以参与光固化的双键,制得含氟改性丙烯酸酯树脂;
所述多官能团聚酯树脂为聚酯丙烯酸酯,其官能度为3-10;
所述活性稀释剂为己二醇二丙烯酸酯、三丙二醇二丙烯酸酯、二丙二醇二丙烯酸酯、丙烯酸异冰片酯、三羟甲基丙烷三丙烯酸酯中的一种或多种;
所述阻聚剂为对羟基苯甲醚;
所述引发剂为过氧化二苯甲酰;
所述催化剂为二月桂酸二丁基锡;
所述颜料为钛白、炭黑、氧化铁颜料、钒酸铋黄、金属氧化物混相颜料以及作为效果颜料的闪光铝粉或云母珠光粉中的一种或多种;
所述光引发剂为184、1173、369、TPO、819、127、BP中的一种或多种。
2.如权利要求1所述的一种含氟改性丙烯酸树脂光固化汽车快速修补漆的制备方法,包括如下步骤:
将所述含氟改性丙烯酸树脂、多官能团聚酯树脂、活性稀释剂依次投入反应釜中,保持搅拌将所述颜料加入,高速搅拌均匀;然后将所述光引发剂加入,搅拌均匀;冷却,即可出料。
3.一种如权利要求1所述的含氟改性丙烯酸树脂光固化汽车快速修补漆的应用,其特征在于,所述应用为涂布在汽车受损漆面表面,在UV/可见光的照射下固化。
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