CN107099218A - 一种高固体自修复环氧防腐涂料及其制备方法 - Google Patents
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Abstract
本发明涉及涂料的技术领域,尤其是一种高固体自修复环氧防腐涂料及其制备方法,该涂料由主剂和固化剂组成,主要原料配比为主剂:固化剂=100:15;主剂质量份的原料:低分子量环氧树脂25.00~35.00;增塑剂2.50~3.50;分散剂0.80~1.20;防沉剂1.50~2.50;防锈颜料15.00~20.00;填料8.00~13.00;消泡剂0.20~0.80;混合溶剂14.00~18.00;环氧树脂微胶囊12.00~17.00;胺固化剂微胶囊2.00~4.00。固化剂质量份的原料:环氧固化剂94.00~98.00;混合溶剂;2.00~3.50;含有机溶剂低,在对装备设施起到防护作用的同时,可有效地减少对生产及施工人员的危害,减少对环境的污染;另一方面由于本发明中微胶囊具有自修复功能,减少了修复漆膜裂纹或划伤带来的人力物力的消耗,节能降耗。
Description
技术领域
本发明涉及涂料的技术领域,尤其是一种高固体自修复环氧防腐涂料及其制备方法。
背景技术
随着社会进步和经济发展,人们对于环保和节能的要求日益提高,国家对于环保要求也提出了更高的标准,涂料行业将面临巨大的挑战,这种挑战也必将促进涂料技术更快发展,长期以来所使用的传统溶剂型涂料中含有大量的有机溶剂,在生产和施工过程中有大量的有机溶剂挥发到大气中,对生产及施工人员造成极大危害,对大气环境造成很大的影响。因此高固体涂料、无溶剂涂料、水性涂料、粉末涂料的开发和应用受到了广泛关注。高固体环氧防腐涂料在工程防腐、机械、装备等方面的防腐保护领域得到了广泛应用。
干燥的漆膜在受到外力的作用或因人为及机械碰撞产生划伤,恶劣环境、化学侵蚀的影响也会使漆膜产生细小裂纹或开裂,使金属基材暴露于空气中,金属基材会受到空气中的水分、氧气及腐蚀性物质的侵蚀而锈蚀,以致造成漆膜翘起脱落,失去防护涂料的保护作用。而修复破损的漆膜需要大量的人力物力,而且影响装备及设施的使用。
发明内容
本发明要解决的技术问题是:克服现有技术中之不足,提供一种含有机溶剂低,在对装备设施起到防护作用,安全系数高,减少对环境的污染,具有自修复功能,节能降耗的高固体自修复环氧防腐涂料及其制备方法。
本发明解决其技术问题所采用的技术方案是:一种高固体自修复环氧防腐涂料,其特征在于:该涂料由主剂和固化剂组成,主要原料配比为主剂:固化剂=100:15;
所述主剂质量份的原料:
所述固化剂质量份的原料:
环氧固化剂 94.00~98.00
混合溶剂 2.00~3.50
进一步的,所述的增塑剂为邻苯二甲酸二辛脂或已二酸二辛酯。
进一步的,所述的分散剂为BYK-P104、BYK-163、EFKA-4061或BYK-110。
进一步的,所述的防沉剂为膨润土和防沉腊;膨润土为PB-183B或828;防沉腊A630-SV、4200-20或3300S。
进一步的,所述的防锈颜料为铁黑、磷酸锌、改性磷酸锌、锶黄、三聚磷酸铝或铁钛粉。
进一步的,所述的填料为滑石粉、沉淀硫酸钡、种质碳酸钙或硅灰石粉。
进一步的,所述的消泡剂为BYK-085、N、byk-066n或1933。
进一步的,所述的混合溶剂为二甲苯70%和正丁醇30%。
进一步的,所述的环氧固化剂为DH-385或MD-2015c。
本发明所述的一种高固体自修复环氧防腐涂料的制备方法,包括如下步骤:
A制备主剂
1)将低分子量环氧树脂25.00~35.00份、增塑剂2.50~3.50份、分散剂0.80~1.20份依次加入配漆罐中,开动搅拌,搅拌速度为900转/分,搅拌时间10分钟,充分搅拌均匀后再加入防沉剂1.50~2.50份、防锈颜料15.00~ 20.00份、填料8.00~13.00份、7~9份混合溶剂,开动搅拌,搅拌速度为900 转/分,搅拌时间20分钟,充分搅拌均匀;
2)研磨:将步骤1)搅匀的漆浆在砂磨机上研磨,研磨至要求的细度,至 30微米为止;
3)调漆:在步骤2)研磨合格的漆浆中加入消泡剂0.20~0.80份、环氧树脂微胶囊12.00~17.00份、胺固化剂微胶囊2.00~4.00份、7~9份混合溶剂,并充分搅拌分散均匀,设定搅拌速度为900转/分,搅拌时间30分钟;
4)过滤包装:将步骤3)的主剂用120目罗网过滤包装,制成合格的主剂;
B制备固化剂:
1)在配料罐中加入混合溶剂2.00~3.50份、环氧固化剂94.00~98.00 份,充分搅拌均匀,搅拌速度为900转/分,搅拌时间30分钟;
2)将步骤1)中的物料用200目罗网过滤包装,制成合格的固化剂。
本发明的有益效果是:本发明高固体自修复环氧防腐涂料含有机溶剂低,在对装备设施起到防护作用的同时,可有效地减少对生产及施工人员的危害,减少对环境的污染;另一方面由于本发明中微胶囊具有自修复功能,减少了修复漆膜裂纹或划伤带来的人力物力的消耗,节能降耗。
具体实施方式
现在优选实施例对本发明作进一步的说明。
所示的一种高固体自修复环氧防腐涂料,该涂料由主剂和固化剂组成,主要原料配比为主剂:固化剂=100:15;
主剂质量份的原料:
固化剂质量份的原料:
环氧固化剂DH-385 97.00
混合溶剂 3.00
合计 100
增塑剂为邻苯二甲酸二辛脂或已二酸二辛酯,优选邻苯二甲酸二辛脂。
分散剂为BYK-P104、BYK-163、EFKA-4061或BYK-110,优选分散剂为 BYK-P104。
防沉剂为膨润土和防沉腊;膨润土为PB-183B或828;防沉腊A630-SV、 4200-20或3300S,优选膨润土为PB-183B,防沉腊A630-SV。
防锈颜料为铁黑、磷酸锌、改性磷酸锌、锶黄、三聚磷酸铝或铁钛粉,优选铁黑、磷酸锌和锶黄。
填料为滑石粉、沉淀硫酸钡、种质碳酸钙或硅灰石粉,优选填料为滑石粉。
消泡剂为BYK-085、N(德国迪高公司)、byk-066n或1933(公隆化学股份有限公司),优选消泡剂为N(德国迪高公司)。
混合溶剂为二甲苯70%和正丁醇30%。
固化剂为DH-385、MD-2015c,优选固化剂为DH-385。
一种高固体自修复环氧防腐涂料的制备方法,包括如下步骤:
A制备主剂
2)配料:将低分子量环氧树脂25.00~35.00份、增塑剂2.50~3.50份、分散剂0.80~1.20份依次加入配漆罐中,开动搅拌,搅拌速度为900转/分,搅拌时间10分钟,充分搅拌均匀后再加入防沉剂1.50~250份、防锈颜料 15.00~20.00份、填料8.00~13.00份、混合溶剂7~9份,开动搅拌,搅拌速度为900转/分,搅拌时间20分钟,充分搅拌均匀;
2)研磨:将步骤1)搅匀的漆浆在砂磨机上研磨,研磨至要求的细度,至30微米为止;
3)调漆:在步骤2)研磨合格的漆浆中加入消泡剂0.20~0.80份、环氧树脂微胶囊12.00~17.00份、胺固化剂微胶囊2.00~4.00份、混合溶剂7~ 9,并充分份,搅拌分散均匀,设定搅拌速度为900转/分,搅拌时间30分钟;
4)过滤包装:将步骤3)的主剂用120目罗网过滤包装,制成合格的主剂;
B制备固化剂:
1)在配料罐中加入混合溶剂、环氧固化剂,充分搅拌均匀,搅拌速度为 900转/分,搅拌时间30分钟;
2)将步骤1)中的物料用200目罗网过滤包装,制成合格的固化剂。
在使用时在主剂中加入固化剂,按质量比为主剂:固化剂=100:15混合,充分搅拌均匀,然后制成合格的高固体自修复环氧防腐涂料喷涂到产品上。
高固体自修复环氧防腐涂料主要用于金属材质防腐工程、工程机械、装备设施、运输设备及零部件等的防腐与保护作用。
耐盐雾性能对比:冷轧钢板喷砂处理,漆膜厚度55~65微米,划加速线后 48小时放入盐雾箱进行检测,耐盐雾性能对比表如表1所示:
表1耐盐雾性能对比表
上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施,并不能以此限制本发明的保护范围,凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围内。
Claims (10)
1.一种高固体自修复环氧防腐涂料,其特征在于:该涂料由主剂和固化剂组成,主要原料配比为主剂:固化剂=100:15;
所述主剂质量份的原料:
所述固化剂质量份的原料:
环氧固化剂 94.00~98.00
混合溶剂 2.00~3.50。
2.根据权利要求1所述的一种高固体自修复环氧防腐涂料,其特征在于:所述的增塑剂为邻苯二甲酸二辛脂或已二酸二辛酯。
3.根据权利要求1所述的一种高固体自修复环氧防腐涂料,其特征在于:所述的分散剂为BYK-P104、BYK-163、EFKA-4061或BYK-110。
4.根据权利要求1所述的一种高固体自修复环氧防腐涂料,其特征在于:所述的防沉剂为膨润土和防沉腊;膨润土为PB-183B或828;防沉腊A630-SV、4200-20或3300S。
5.根据权利要求1所述的一种高固体自修复环氧防腐涂料,其特征在于:所述的防锈颜料为铁黑、磷酸锌、改性磷酸锌、锶黄、三聚磷酸铝或铁钛粉。
6.根据权利要求1所述的一种高固体自修复环氧防腐涂料,其特征在于:所述的填料为滑石粉、沉淀硫酸钡、种质碳酸钙或硅灰石粉。
7.根据权利要求1所述的一种高固体自修复环氧防腐涂料,其特征在于:所述的消泡剂为BYK-085、N、byk-066n或1933。
8.根据权利要求1所述的一种高固体自修复环氧防腐涂料,其特征在于:所述的混合溶剂为二甲苯和正丁醇。
9.根据权利要求1所述的一种高固体自修复环氧防腐涂料,其特征在于:所述的环氧固化剂为DH-385或MD-2015c。
10.一种高固体自修复环氧防腐涂料的制备方法,其特征在于:包括如下步骤:
A制备主剂
1)配料:将低分子量环氧树脂25.00~35.00份、增塑剂2.50~3.50份、分散剂0.80~1.20份依次加入配漆罐中,开动搅拌,搅拌速度为900转/分,搅拌时间10分钟,充分搅拌均匀后再加入防沉剂1.50~250份、防锈颜料15.00~20.00份、填料8.00~13.00份、混合溶剂7~9份,开动搅拌,搅拌速度为900转/分,搅拌时间20分钟,充分搅拌均匀;
2)研磨:将步骤1)搅匀的漆浆在砂磨机上研磨,研磨至要求的细度,至30微米为止;
3)调漆:在步骤2)研磨合格的漆浆中加入消泡剂0.20~0.80份、环氧树脂微胶囊12.00~17.00份、胺固化剂微胶囊2.00~4.00份、混合溶剂7~9份,并充分搅拌分散均匀,设定搅拌速度为900转/分,搅拌时间30分钟;
4)过滤包装:将步骤3)的主剂用120目罗网过滤包装,制成合格的主剂;
B制备固化剂:
1)在配料罐中加入混合溶剂、环氧固化剂,充分搅拌均匀,搅拌速度为900转/分,搅拌时间30分钟;
2)将步骤1)中的物料用200目罗网过滤包装,制成合格的固化剂。
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