CN108250945B - 耐600℃作业车辆用纳米陶瓷涂料及其制备、施工工艺 - Google Patents

耐600℃作业车辆用纳米陶瓷涂料及其制备、施工工艺 Download PDF

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CN108250945B
CN108250945B CN201711337782.8A CN201711337782A CN108250945B CN 108250945 B CN108250945 B CN 108250945B CN 201711337782 A CN201711337782 A CN 201711337782A CN 108250945 B CN108250945 B CN 108250945B
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程皓然
李瑶林
宁永辉
王勋
李二明
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Shijiazhuang Paint Co
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Abstract

本发明提供了一种耐600℃作业车辆用纳米陶瓷涂料，所述涂料包含组分A和组分B，其中组分A由以下重量份数的原材料组成：酸性硅溶胶：55～70份，无机颜料：8～20份，晶须硅：4～6份，碳化硅纤维：4～6份，石墨烯：1‑2份，其它填料：7～15份，分散剂：0.5～1.5份，流平剂：0.5～1份，其中组分B由以下重量份数的原材料组成：硅氧烷：86～92份，不粘助剂：1.5～3份，溶剂：5‑13份。本发明制备的耐600℃作业车辆用纳米陶瓷涂料，可常温自干，用于高温作业车辆装备的外装饰。

Description

耐600℃作业车辆用纳米陶瓷涂料及其制备、施工工艺
技术领域
本发明涉及涂料技术领域，具体涉及一种耐600℃作业车辆用纳米陶瓷涂料，同时，本发明还涉及该涂料的制备及施工工艺。
背景技术
目前，中国交通运输已步入黄金发展时期，大多数车辆、装备外装饰面漆使用的涂料多为聚氨酯漆，少量使用氟碳漆，生产和施工过程中会释放出大量VOC，且聚氨酯漆和氟碳漆使用的固化剂为有毒的多异氰酸酯，不仅对生产、施工人员健康造成危害，污染环境，而且高温环境下易燃烧冒烟，产生有毒气体，造成火灾隐患。而许多车辆装备如消防车、洗消车、装甲车等必须在高温环境下作业，这就要求车辆外表面装饰涂料不仅需要满足传统车辆户外面漆的性能，而且对高温、阻燃条件下兼具较高的装饰产生较大的要求。
无机纳米陶瓷涂料由于其具有绿色健康环保的特性，特别是阻燃性能，并且高温下不燃烧、不冒烟，无有毒气体释放，超高耐候性等优异性能，近几年已经逐渐开始在车辆交通行业开始应用。
发明内容
本发明提供一种耐600℃作业车辆用纳米陶瓷涂料，可常温自干，用于高温作业车辆装备的外装饰。
一种耐600℃作业车辆用纳米陶瓷涂料，包含组分A和组分B，其中组分A由以下重量份数的原材料组成：
酸性硅溶胶：55～70份
无机颜料：8～20份
晶须硅：4～6份
碳化硅纤维：4～6份
石墨烯：1-2份
其它填料：7～15份
分散剂：0.5～1.5份
流平剂：0.5～1份
其中组分B由以下重量份数的原材料组成：
硅氧烷：86～92份
不粘助剂：1.5～3份
溶剂：5-13份；
所述溶剂为无水乙醇、异丙醇、正丁醇中的至少一种。
进一步的，所述组分A占所述涂料重量的60～66％，所述组分B占所述涂料重量的34～40％。
进一步的，组分A中所述的酸性硅溶胶为水分散纳米氧化硅，其粒径为10～100nm，氧化硅含量为30～50％，pH值为5～6。
进一步的，所述其它填料包括硅微粉、纳米氧化铈、纳米氧化铝、氧化镍。
进一步的，所述的硅氧烷为甲基三甲氧基硅烷、甲基三乙氧基硅烷、二甲基二甲氧基硅烷中的至少一种。
进一步的，所用不粘助剂为二甲基二苯基硅油、端羟基硅油中的至少一种。
进一步的，所述的无机颜料为钛白粉、钛红、铁钴黑、钛黄中的至少一种。
进一步的，所述组分A由以下重量份数的原材料组成：
酸性硅溶胶60份
分散剂1份
流平剂0.5份
钛白粉19份
晶须硅5份
碳化硅纤维5份
硅微粉5份
纳米氧化铈3份
纳米氧化铝1.5份
石墨烯1份
氧化镍2份
所述组分B由以下重量百分含量的原材料组成：
硅氧烷：90份
不粘助剂：2.5份
溶剂：7.5份
所述溶剂为无水乙醇、异丙醇、正丁醇中的至少一种。
所述的耐600℃作业车辆用纳米陶瓷涂料的制备工艺，将酸性硅溶胶、分散剂、流平剂按比例依次加入砂磨机中，搅拌均匀后加入无机颜料、晶须硅、碳化硅纤维及其它填料上车研磨。至细度为25μm以下时，下车计算得率，然后用高速搅拌机搅拌下加入石墨烯，转速为650r/min，搅拌15-20min后，过160目双层筛网，得到耐600℃作业车辆用纳米陶瓷涂料A组分，将硅氧烷、不粘助剂、溶剂按比例混合均匀得到B组分。
所述的耐600℃作业车辆用纳米陶瓷涂料的施工工艺，将组分A与组分B按比例加入到滚料机中，滚动速度为120-140r/min，滚动时间为4-6h，然后用300目筛网过滤，采用喷涂设备进行喷涂。
本发明所述耐600℃作业车辆用纳米陶瓷涂料具有以下有益效果：
(1)本发明采用酸性硅溶胶，不仅省去传统陶瓷涂料三组分体系中的酸体系，而且可以满足储存性不受影响。通过加入晶须硅和碳化硅纤维复配，二者起位错强化机理，提高了涂料体系的挠曲性能，使涂料的韧性有较大的增强。本发明选用碳化硅纤维可以防止涂层在较高厚度下开裂，因车辆装备对外装饰效果要求较高，追求平整美观，涂料一般喷涂较厚(40μm以上)，涂层易发生开裂，故加入碳化硅纤维可以有效防止涂层厚涂下开裂，而晶须硅可以为涂层在高温下提供一定的挠曲性能，防止涂层在高温下开裂，二者复配使用可以极大地改善陶瓷涂料易开裂特性。
(2)本发明中选用硅微粉可以为涂层提供较好的耐磨性和光滑度，并且可以与网状成膜物质进行拼接；纳米氧化铈可以细化颜填料晶粒，消除晶界杂质，提高涂层强度；纳米氧化铝可以提高涂料粘度，防止涂料粘度过低而流挂，同时可以填充至涂层空隙处，提高涂层的致密度，并对涂层耐腐蚀性和疏水自洁性也有一定的增强效果。同时，加入的纳米级氧化铈和氧化铝还可以有效地吸收裂纹萌生和扩展所需的能量，提高涂层骨架强度，并具有一定的自润滑功能。选用的石墨烯为增强型石墨烯可以改善材料的机械性能，增强纳米陶瓷涂料的柔韧性，防止硅氧烷在水解成膜时开裂。氧化镍可以与金属表面锈点原位生成羟基氧化铁，形成致密的保护层，具有以锈止锈的功能。
(3)本发明优选钛白粉、钛红、铁钴黑、钛黄颜料，高温稳定性好，满足纳米陶瓷涂料在户外耐600℃高温装置上的应用稳定性。
具体实施方式
基于本发明的设计思想，下面，结合具体的实施例对本发明的一种耐600℃作业车辆用纳米陶瓷涂料做进一步的详细描述：
实施例1-3
耐600℃作业车辆用纳米陶瓷涂料组分A原料重量组成如下表所示：
Figure BDA0001507726880000041
Figure BDA0001507726880000051
耐600℃作业车辆用纳米陶瓷涂料组分B原料重量组成如下表所示：
Figure BDA0001507726880000052
实施例1-3的耐600℃作业车辆用纳米陶瓷涂料采用以下方法制备得到：
将酸性硅溶胶、分散剂、流平剂按比例依次加入砂磨机中，搅拌均匀后加入钛白粉、晶须硅、碳化硅纤维、硅微粉、纳米氧化铈、纳米氧化铝、氧化镍上车研磨。至细度为25μm以下时，下车计算得率，然后用高速搅拌机搅拌下加入石墨烯，转速为650r/min，搅拌15-20min后，过160目双层筛网，得到耐600℃作业车辆用纳米陶瓷涂料A组分，将硅氧烷、二甲基二苯基硅油、异丙醇按比例混合均匀得到B组分。
将实施例1中的组分A与组分B按重量比60:40混合均匀。
将实施例2中的组分A与组分B按重量比63:37混合均匀。
将实施例3中的组分A与组分B按重量比66:34混合均匀。
对实施例1-3制备得到的组分A与组分B按比例加入到滚料机中，滚动速度为130r/min，滚动时间为5h，然后用300目筛网过滤，采用喷涂设备进行喷涂，进行性能测试，检测结果如下表所示：
Figure BDA0001507726880000053
Figure BDA0001507726880000061

Claims (8)

1.一种耐600℃作业车辆用纳米陶瓷涂料，其特征在于，所述涂料包含组分A和组分B，其中组分A由以下重量份数的原材料组成：
酸性硅溶胶：55～70份
无机颜料：8～20份
晶须硅：4～6份
碳化硅纤维：4～6份
增强型石墨烯：1-2份
其它填料：7～15份
分散剂：0.5～1.5份
流平剂：0.5～1份
其中组分B由以下重量份数的原材料组成：
硅氧烷：86～92份
不粘助剂：1.5～3份
溶剂：5-13份；
所述溶剂为无水乙醇、异丙醇、正丁醇中的至少一种；
组分A中所述的酸性硅溶胶为水分散纳米氧化硅，其粒径为10～100nm，氧化硅含量为30～50％，pH值为5～6；
所述其它填料包括硅微粉、纳米氧化铈、纳米氧化铝、氧化镍。
2.根据权利要求1所述的耐600℃作业车辆用纳米陶瓷涂料，其特征在于，所述组分A占所述涂料重量的60～66％，所述组分B占所述涂料重量的34～40％。
3.根据权利要求1所述的耐600℃作业车辆用纳米陶瓷涂料，其特征在于，所述的硅氧烷为甲基三甲氧基硅烷、甲基三乙氧基硅烷、二甲基二甲氧基硅烷中的至少一种。
4.根据权利要求1所述的耐600℃作业车辆用纳米陶瓷涂料，其特征在于，所用不粘助剂为二甲基二苯基硅油、端羟基硅油中的至少一种。
5.根据权利要求1所述的耐600℃作业车辆用纳米陶瓷涂料，其特征在于，所述的无机颜料为钛白粉、钛红、铁钴黑、钛黄中的至少一种。
6.根据权利要求5所述的耐600℃作业车辆用纳米陶瓷涂料，其特征在于，所述组分A由以下重量份数的原材料组成：
酸性硅溶胶60份
分散剂1份
流平剂0.5份
钛白粉19份
晶须硅5份
碳化硅纤维5份
硅微粉5份
纳米氧化铈3份
纳米氧化铝1.5份
增强型石墨烯1份
氧化镍2份
所述组分B由以下重量份数的原材料组成：
硅氧烷：90份
不粘助剂：2.5份
溶剂：7.5份
所述溶剂为无水乙醇、异丙醇、正丁醇中的至少一种。
7.一种如权利要求1-6中任一项所述的耐600℃作业车辆用纳米陶瓷涂料的制备工艺，其特征在于，将酸性硅溶胶、分散剂、流平剂按比例依次加入砂磨机中，搅拌均匀后加入无机颜料、晶须硅、碳化硅纤维及其它填料上车研磨；至细度为25μm以下时，下车计算得率，然后用高速搅拌机搅拌下加入增强型石墨烯，转速为650r/min，搅拌15-20min后，过160目双层筛网，得到耐600℃作业车辆用纳米陶瓷涂料A组分，将硅氧烷、不粘助剂、溶剂按比例混合均匀得到B组分。
8.一种如权利要求1-6中任一项所述的耐600℃作业车辆用纳米陶瓷涂料的施工工艺，其特征在于，将组分A与组分B按比例加入到滚料机中，滚动速度为120-140r/min，滚动时间为4-6h，然后用300目筛网过滤，采用喷涂设备进行喷涂。
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