CN113278345A - 一种复合涂层材料 - Google Patents
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Abstract
本发明公开了一种复合涂层材料,包括A组分和B组分,A组分由以下组分组成:环氧树脂、抗磨防腐蚀微粉、偶联剂、活性稀释剂、触变剂和消泡剂;B组分由以下组分组成:固化剂、固化促进剂和附着力促进剂;该复合涂层材料具有较高的柔韧性、机械强度、粘接强度、耐腐蚀性、耐磨性、耐候性和长储存稳定性,较低的粘度,并且不起翘、不脱落、不开裂,使用寿命长;该复合涂层材料中不含挥发性有机溶剂,固化后涂层无针孔,不收缩,且坚硬,对环境和施工人员均比较安全;制备工艺简单,施工操作简便,可在常温下进行施工,在常温下进行固化,形状适宜性强,涂层的厚度可控,可机械加工,可用于多种基体材质上;原料易得,成本低。
Description
技术领域
本发明涉及复合材料技术领域,具体是一种复合涂层材料。
背景技术
腐蚀,尤其是磨损与腐蚀的双重作用是导致设备设施和结构件失效的主要形式之一,对于输送高速流体(如气体、液体和粉体)的管道,腐蚀和磨损处于恶性循环状态,磨损加速了腐蚀,腐蚀加剧了磨损;对于长期工作于恶略环境(如石化、港口、海洋、钢铁、矿山等高腐蚀、高温高湿行业)中的管线、桩柱、平台、钢结构、储罐等设备设施的腐蚀、冲蚀状况更是令人担忧,因此急需高性能、复合化、长寿命、耐腐蚀、耐磨损等综合性能优异的功能性材料对这些设施表面进行长效的防护,以确保其能长期服役。
目前,提高材料表面防腐耐磨性能的方法有很多,如在材料表面使用陶瓷贴片、化学镀、电镀、激光熔覆、热喷涂等,但这些方法都有这样或那样的不足:贴片易脱落,化学镀/电镀的镀层附着力不强,激光熔覆成本高,热喷涂导致材料产生残余应力较大。此外,这些方法有的还需要用专门的施工工具,有的难以实现在线施工或大面积施工,而且获得的保护层较薄,在恶略的腐蚀环境和长期冲刷工况下,很容易因磨损、剥落或开裂失效而失去对基材的保护作用。
防腐耐磨复合涂层是近些年来发展起来的一种新型防护材料,是一种在金属表面通过涂装工艺获得耐腐蚀、耐磨损的复合涂层,是一种具有防腐耐磨性能的高性价比功能性材料,与传统的防腐耐磨方法相比,该材料能与金属材料有机地结合起来,发挥两类材料的综合优势,获得具有良好的机械强度和硬度以及优秀的抗化学腐蚀性和耐磨性的理想复合材构。但现有的防腐耐磨复合涂层大都采用普通的环氧树脂和颜填料为原料,制成的复合涂层材料没有足够的机械强度,防腐耐磨性差,在水汽、潮湿、酸碱性等苛刻环境下,涂层易失效;涂层附着力不强、韧性不足,在长期处于流体冲刷和震动蠕变等动态工况下易皲裂、开裂甚至脱落。究其原因,主要为涂层中颜填料未达到最优配比,形成的涂层不密实;其次涂层中防锈颜料往往为活性材料,与环境中介质发生了化学反应,再加之涂层中往往含有一定量有机溶剂,溶剂在涂层固化过程中要挥发掉,这样就会留下很多微小的针孔,这些都会对涂层结构造成破坏,降低涂层致密性,使腐蚀介质有了“呼吸”通道,最终导致涂层剥落、基材被腐蚀;此外,有机溶剂挥发还会对环境和施工人员造成一定的危害。
发明内容
本发明的目的在于提供一种涂层复合材料,以解决现有技术中复合涂层材料机械强度不足,防腐耐磨性差,易失效,涂层附着力不强,韧性不足,易皲裂、开裂甚至脱落的问题。
为实现上述目的,本发明提供如下技术方案:
本发明提供了一种复合涂层材料,包括A组分和B组分,A组分和B组分的重量比为6-9:1;
A组分由以下重量份数的组分组成:
B组分由以下重量份数的组分组成:
固化剂 94-97份,
固化促进剂 1-5份,
附着力促进剂 1-2.5份。
进一步的,环氧树脂为缩水甘油醚型环氧树脂、缩水甘油胺型环氧树脂、缩水甘油酯型环氧树脂、脂环族环氧树脂、脂肪族环氧树脂、改性环氧树脂中的一种或多种。
进一步的,缩水甘油醚型环氧树脂为二酚基丙烷缩水甘油醚、双酚F二缩水甘油醚、氢化二酚基丙烷缩水甘油醚、线性酚醛型环氧树脂、间苯二酚型甲醛环氧树脂中的一种或多种;改性环氧树脂为CTBN改性环氧树脂、端羟基丁腈橡胶改性环氧树脂、聚硫橡胶改性环氧树脂、液体无规羧基丁腈橡胶改性环氧树脂、丁腈基-异氰酸酯预聚体改性环氧树脂、端羟基聚丁二烯改性环氧树脂中的一种或多种。
进一步的,二酚基丙烷缩水甘油醚的环氧当量为180~280g/eq,粘度为10000~20000pcs;双酚F二缩水甘油醚的环氧当量为150~200g/eq,粘度为2000~5000pcs;CTBN改性环氧树脂的环氧当量为300~400g/eq,粘度为300000~600000pcs。
进一步的,抗磨防腐蚀微粉为AL2O3粉、BN粉、Si3N4粉、硫酸钡、SiC粉、硅微粉、云母粉、多孔粉石英、陶瓷微粉、高岭土中的一种或多种;抗磨防腐蚀微粉的粒度为100-1250目,且级配连续。
进一步的,偶联剂为有机铬络合物偶联剂、硅烷偶联剂、钛酸酯偶联剂、锆类偶联剂中的任意一种。
进一步的,固化剂由改性脂环胺固化剂和改性脂肪胺固化剂组成,改性脂环胺固化剂和改性脂肪胺固化剂的重量比为1-5:1。
进一步的,固化促进剂为TAP、TEOA中的任意一种。
进一步的,触变剂为白碳黑、有机膨润土、聚酰胺蜡中的任意一种。
进一步的,活性稀释剂为十二至十四烷基缩水甘油醚、环氧丙烷苄基醚中的任意一种。
与现有技术相比,本发明的有益效果是:
一、二酚基丙烷缩水甘油醚、双酚F二缩水甘油醚和CTBN改性环氧树脂相互协同作用,有助于提高复合涂层材料的柔韧性,并降低复合涂层材料的粘度;
二、活性稀释剂能提高复合涂层材料的韧性,并降低复合涂层材料的粘度;
三、偶联剂能促进抗磨防腐蚀微粉与经活性稀释剂稀释过的环氧树脂十分紧密的结合在一起,并使抗磨防腐蚀微粉在经活性稀释剂稀释过的环氧树脂中具有很好的分散性;
四、抗磨防腐蚀微粉为球形粒子和层状结构微粉,且抗磨防腐蚀微粉的级配连续,环氧树脂为三维网状立体结构,抗磨防腐蚀微粉和环氧树脂相结合,使得复合涂层材料具有最密实的堆积状态,最强的防腐性能和抗冲刷磨损性能,不起翘、不脱落、不开裂,使用寿命长;
五、偶联剂、活性稀释剂、环氧树脂、抗磨防腐蚀微粉和附着力促进剂相互协同作用,有助于提高复合涂层材料的机械强度、粘接强度、耐腐蚀性和耐候性;
六、触变剂不仅能防止A组分在长储存中抗磨防腐蚀微粉的沉淀分层,又能使复合涂层材料具有易施工性和抗流挂性;
七、该复合涂层材料中不含挥发性有机溶剂,固化后涂层无针孔,不收缩,且坚硬,对环境和施工人员均比较安全;
八、该复合涂层材料制备工艺简单,施工操作简便,可在常温下进行施工,在常温下进行固化,形状适宜性强,涂层的厚度可控,可机械加工,可用于多种基体材质上;
九、该复合涂层材料的原料易得,成本低,综合性能优秀,可大大延长设备和装备连续安全运行寿命。
具体实施方式
下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1:
按表1中指定的各组分将二酚基丙烷缩水甘油醚、双酚F二缩水甘油醚、CTBN改性环氧树脂、硅微粉、陶瓷微粉、云母粉、SiC粉、3-缩水甘油醚氧基丙基甲基二乙氧基硅烷(硅烷偶联剂)、白碳黑、十二至十四烷基缩水甘油醚和BYK-054(消泡剂)投入共混设备中,搅拌2h,得到A组分;将改性脂环胺、改性脂肪胺、TAP和ADP-S471(附着力促进剂)投入共混设备中,搅拌1h,得到B组分;将A组分和B组分按重量比为9:1混合均匀,得到复合涂层材料。
实施例2:
按表1中指定的各组分将二酚基丙烷缩水甘油醚、双酚F二缩水甘油醚、CTBN改性环氧树脂、硅微粉、陶瓷微粉、云母粉、SiC粉、3-缩水甘油醚氧基丙基甲基二乙氧基硅烷(硅烷偶联剂)、白碳黑、十二至十四烷基缩水甘油醚和BYK-054(消泡剂)投入共混设备中,搅拌2h,得到A组分;将改性脂环胺、改性脂肪胺、TAP和ADP-S471(附着力促进剂)投入共混设备中,搅拌1h,得到B组分;将A组分和B组分按重量比为8.5:1混合均匀,得到复合涂层材料。
实施例3:
按表1中指定的各组分将二酚基丙烷缩水甘油醚、双酚F二缩水甘油醚、CTBN改性环氧树脂、陶瓷微粉、云母粉、SiC粉、多孔粉石英、3-缩水甘油醚氧基丙基甲基二乙氧基硅烷(硅烷偶联剂)、白碳黑、十二至十四烷基缩水甘油醚和BYK-054(消泡剂)投入共混设备中,搅拌2h,得到A组分;将改性脂环胺、改性脂肪胺、TAP和ADP-S471(附着力促进剂)投入共混设备中,搅拌1h,得到B组分;将A组分和B组分按重量比为7.5:1混合均匀,得到复合涂层材料。
实施例4:
按表1中指定的各组分将二酚基丙烷缩水甘油醚、双酚F二缩水甘油醚、CTBN改性环氧树脂、陶瓷微粉、云母粉、SiC粉、多孔粉石英、3-缩水甘油醚氧基丙基甲基二乙氧基硅烷(硅烷偶联剂)、白碳黑、十二至十四烷基缩水甘油醚和BYK-054(消泡剂)投入共混设备中,搅拌2h,得到A组分;将改性脂环胺、改性脂肪胺、TAP和ADP-S471(附着力促进剂)投入共混设备中,搅拌1h,得到B组分;将A组分和B组分按重量比为7.5:1混合均匀,得到复合涂层材料。
实施例5:
按表1中指定的各组分将二酚基丙烷缩水甘油醚、双酚F二缩水甘油醚、CTBN改性环氧树脂、陶瓷微粉、云母粉、SiC粉、多孔粉石英、3-缩水甘油醚氧基丙基甲基二乙氧基硅烷(硅烷偶联剂)、白碳黑、十二至十四烷基缩水甘油醚和BYK-054(消泡剂)投入共混设备中,搅拌2h,得到A组分;将改性脂环胺、改性脂肪胺、TAP和ADP-S471(附着力促进剂)投入共混设备中,搅拌1h,得到B组分;将A组分和B组分按重量比为6:1混合均匀,得到复合涂层材料。
对比例:
按表1中指定的各组分将二酚基丙烷缩水甘油醚、陶瓷微粉、白碳黑、十二至十四烷基缩水甘油醚和BYK-054(消泡剂)投入共混设备中,搅拌2h,得到A组分;将改性脂环胺、改性脂肪胺和TAP投入共混设备中,搅拌1h,得到B组分;将A组分和B组分按重量比为8:1混合均匀,得到复合涂层材料。
表1实施例1-5及对比例中各组分的含量
对实施例1-5及对比例所制得的复合涂层材料的性能进行测试,结果如表2所示。
表2实施例1-5及对比例所制得的复合涂层材料性能测试结果
从表2中可以看出,在防腐蚀性能、抗磨损性能、粘附性能、柔韧性能、长储存稳定性等方面,本发明的复合涂层材料都明显优于对比例的复合涂层材料。
对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何标记视为限制所涉及的权利要求。
Claims (10)
1.一种复合涂层材料,其特征在于,包括A组分和B组分,所述A组分和B组分的重量比为6-9:1;
所述A组分由以下重量份数的组分组成:
环氧树脂 25-38份,
抗磨防腐蚀微粉 55-68份,
偶联剂 0.5-2份,
活性稀释剂 2-5份,
触变剂 0.5-3份,
消泡剂 0.3-1份,
所述B组分由以下重量份数的组分组成:
固化剂 94-97份,
固化促进剂 1-5份,
附着力促进剂 1-2.5份。
2.根据权利要求1所述的一种复合涂层材料,其特征在于:所述环氧树脂为缩水甘油醚型环氧树脂、缩水甘油胺型环氧树脂、缩水甘油酯型环氧树脂、脂环族环氧树脂、脂肪族环氧树脂、改性环氧树脂中的一种或多种。
3.根据权利要求2所述的一种复合涂层材料,其特征在于:所述缩水甘油醚型环氧树脂为二酚基丙烷缩水甘油醚、双酚F二缩水甘油醚、氢化二酚基丙烷缩水甘油醚、线性酚醛型环氧树脂、间苯二酚型甲醛环氧树脂中的一种或多种;所述改性环氧树脂为CTBN改性环氧树脂、端羟基丁腈橡胶改性环氧树脂、聚硫橡胶改性环氧树脂、液体无规羧基丁腈橡胶改性环氧树脂、丁腈基-异氰酸酯预聚体改性环氧树脂、端羟基聚丁二烯改性环氧树脂中的一种或多种。
4.根据权利要求3所述的一种复合涂层材料,其特征在于:所述二酚基丙烷缩水甘油醚的环氧当量为180~280g/eq,粘度为10000~20000pcs;所述双酚F二缩水甘油醚的环氧当量为150~200g/eq,粘度为2000~5000pcs;所述CTBN改性环氧树脂的环氧当量为300~400g/eq,粘度为300000~600000pcs。
5.根据权利要求1所述的一种复合涂层材料,其特征在于:所述抗磨防腐蚀微粉为AL2O3粉、BN粉、Si3N4粉、硫酸钡、SiC粉、硅微粉、云母粉、多孔粉石英、陶瓷微粉、高岭土中的一种或多种;所述抗磨防腐蚀微粉的粒度为100-1250目,且级配连续。
6.根据权利要求1所述的一种复合涂层材料,其特征在于:所述偶联剂为有机铬络合物偶联剂、硅烷偶联剂、钛酸酯偶联剂、锆类偶联剂中的任意一种。
7.根据权利要求1所述的一种复合涂层材料,其特征在于:所述固化剂由改性脂环胺固化剂和改性脂肪胺固化剂组成,所述改性脂环胺固化剂和改性脂肪胺固化剂的重量比为1-5:1。
8.根据权利要求1所述的一种复合涂层材料,其特征在于:所述固化促进剂为TAP、TEOA中的任意一种。
9.根据权利要求1所述的一种复合涂层材料,其特征在于:所述触变剂为白碳黑、有机膨润土、聚酰胺蜡中的任意一种。
10.根据权利要求1所述的一种复合涂层材料,其特征在于:所述活性稀释剂为十二至十四烷基缩水甘油醚、环氧丙烷苄基醚中的任意一种。
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