CN111269653A - 一种用于烟草机械的自干型纳米新结构涂层及工艺 - Google Patents
一种用于烟草机械的自干型纳米新结构涂层及工艺 Download PDFInfo
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Abstract
本发明一种用于烟草机械的自干型纳米新结构涂层,包括以下组分,以重量份数计:硅溶胶29‑43份、填料8‑17份、硅氧烷41‑50份、固化剂0.1‑1份、水5‑12份、流平剂1‑3份,有机溶剂10‑15份,多巴胺5‑10份。本发明还提供了其制备工艺,其应用于合金表面、有机树脂表面进行烟草加工专用设备非标件的功能化,从而使其具有提高表面硬度、不粘料、防腐蚀、耐高温、食品级安全无二次污染等优点。
Description
技术领域
本发明属于功能涂层技术领域,具体涉及一种用于烟草机械的自干型纳米新结构涂层及工艺。
背景技术
在国内打叶复烤厂和卷烟厂等相关烟草加工环节,需要对烟叶、烟丝、烟梗等物料进行打叶分离、烘干打捆、真空回潮、烘丝、切丝、温度控制、湿度控制、物料掺配、贮存醇化、卷接胶粘、包装运输等处理,由于烟草中含有的复杂有机物及工艺要求的温湿度,例如焦油、香精香料、糖类、脂类、冷凝水等,因此烟草加工行业中普遍存在着设备经常粘附物料,这些物料非常难于清理,而且这些附着物会导致混料、水积烟、影响成品烟的质量;又会对烟草加工设备造成腐蚀、磨损、漏料及工艺参数偏差。烟草加工设备现有涂层效果不好,涂层附着力不足、不耐高温、不耐磨、易粘料,后期还需要人工反复水冲洗或化学试剂清洗,造成时间和人力成本的升高及污水处理的成本很高。现有涂料脱落的工件往往需要拆卸返厂进行清理并采用专业的高温工艺重新喷涂涂层,这势必导致会影响烟草正常的生产安排及工件加工成本的提高。因此,开发一种适用于烟草加工设备的自干型耐高温、耐磨性、不粘性、不脱落的新型基材表面功能化涂层尤为重要。
发明内容
本发明所要解决的技术问题是提供一种用于烟草机械的自干型纳米新结构涂层及工艺,其应用于不锈钢、铜合金、有机树脂表面等烟草专用机械的功能化处理,从而使其具有提高表面硬度、不粘料、防腐蚀、耐高温、食品级安全无二次污染等优点。
为了实现上述目的,本发明所采取的技术方案是:一种用于烟草机械的自干型纳米新结构涂层,包括以下组分,以重量份数计:硅溶胶29-43份、填料8-17份、硅氧烷41-50份、固化剂0.1-1份、水5-12份、流平剂1-3份,有机溶剂10-15份,多巴胺5-10份。
在上述技术方案的基础上,本发明还可以有如下进一步的具体选择或优化选择。
具体的,还包括颜料1-3份,钛白粉、锰铁黑的一种或几种。
具体的,所述硅溶胶为纳米二氧化硅水分散体,其粒度为10-100nm;所述填料选自纳米氧化锆、纳米碳化硅、纳米氟化钙、纳米氧化锌、纳米氧化镁中的一种或几种;所述硅氧烷选自甲基三甲氧基硅烷、甲基三乙氧基硅烷、乙烯基三甲氧基硅烷、乙烯基三乙氧基硅烷、苯基三甲氧基硅烷、苯基三乙氧基硅烷、γ-甲基丙烯酰氧基丙基三甲氧基硅烷、3-缩水甘油醚氧基丙基三甲氧基硅烷、二甲基二甲氧基硅烷、二甲基二乙氧基硅烷、环氧丙氧丙基甲基二甲氧基硅烷、环氧丙氧丙基甲基二乙氧基硅烷、二苯基二甲氧基硅烷、二苯基二乙氧基硅烷中的一种或几种;所述固化剂选自钛酸正丁酯或钛络合物;所述流平剂选自丙烯酸酯类流平剂;所述有机溶剂选自乙醇、异丙醇、正丁醇、丙二醇甲醚中的一种或几种。
此外,本发明还提供了一种上述用于烟草机械的自干型纳米新结构涂层的制备工艺,包括以下步骤:
1)根据原料配比称取相应分量的硅溶胶、填料、水进行混合并搅拌,研磨至粒径在20μm以下;
2)向步骤1)获得的材料中加入剩余原料,然后搅拌使其充分混合。
此外,本发明还提供了一种涂覆用于烟草机械的自干型纳米新结构涂层的方法,包括以下步骤:
1)将基材表面进行预处理,并预热;
2)所述基材表面喷涂上述用于烟草机械的自干型纳米新结构涂层2-3遍至所述基材表面均匀;
3)常温下干燥所述基材18-30小时。
具体的,所述预处理为将所述基材打磨、除锈、去油,所述预热为30-50℃。优选40摄氏度。所述干燥时间优选24小时。
具体地,所述基材为金属基材,优选钢材、碳素钢、合金钢材等。
此外,本发明还提供了使用上述用于烟草机械的自干型纳米新结构涂层的烟草加工设备。
与现有技术相比,本发明的有益效果是:本发明提供的基材表面功能化涂层的配方成本降低、食品等级更高、常温自干,无需烤箱,配置方便,具有广阔的应用前景。本发明提供的上述基材表面功能化涂层实现移动工作站的效果,可现场加工设备,无需高温高压的苛刻条件实施。且其制备的基材表面功能化涂层与现有的特氟龙涂层相比,具有耐高温、耐磨损、使用寿命延长、食品级无毒安全且不脱料的优点。尤其特别适合用于烟草加工设备,具有易清洁、不粘附、耐腐蚀的特征。所述多巴胺加入到纳米陶瓷分散工艺技术,令分散更均匀稳定;纳米微观颗粒间结合界面处理高效稳定,确保纳米复合陶瓷涂层与基材结合强度更好性能更优异稳定;纳米复合配方,让纳米复合新涂层功能可控。该纳米复合陶瓷涂料,呈现良好的微纳结构(纳米复合陶瓷颗粒完好包裹微米复合陶瓷颗粒,微米复合陶瓷颗粒间隙被纳米复合陶瓷颗粒填充,形成致密涂层。纳米复合陶瓷颗粒渗透填充修复基材表面,更容易形成大量稳定的纳米复合陶瓷与基材的中间相),确保涂层致密耐磨。
附图说明
图1是本发明实施例1的用于烟草机械的自干型纳米新结构涂层的电镜扫面图。
具体实施方式
为了更好地理解本发明,下面结合附图及具体实施例进一步阐明本发明的内容,但本发明的内容不仅仅局限于下面的实施例。
实施例1:
本发明提供了一种用于烟草机械的自干型纳米新结构涂层,以重量份数计,包括硅溶胶30份、填料12份、硅氧烷44份、固化剂0.3份、水6份、流平剂1份,有机溶剂10份,多巴胺8份。
其制备方法如下:
1)根据原料配比称取上述分量的硅溶胶、填料、水进行混合并搅拌,研磨至粒径在20μm以下;
2)向步骤1)获得的材料中加入剩余原料,然后充分混合。
将上述用于烟草机械的自干型纳米新结构涂层进行应用,包括以下步骤:
1)将所述基材表面进行预处理,并预热;
2)所述基材表面喷涂所述涂层材料3遍至所述基材表面均匀;
3)常温下干燥所述基材18小时。
实施例2:
本发明提供了一种用于烟草机械的自干型纳米新结构涂层,以重量份数计,包括硅溶胶43份、填料17份、硅氧烷50份、固化剂1份、水12份、流平剂3份,有机溶剂15份,多巴胺10份。
其制备方法如下:
1)根据原料配比称取上述分量的硅溶胶、填料、水进行混合并搅拌,研磨至粒径在20μm以下;
2)向步骤1)获得的材料中加入剩余原料,然后充分混合。
将上述用于烟草机械的自干型纳米新结构涂层进行应用,包括以下步骤:
1)将所述基材表面进行预处理,并预热;
2)所述基材表面喷涂所述涂层材料3遍至所述基材表面均匀;
3)常温下干燥所述基材30小时。
实施例3:
本发明提供了一种用于烟草机械的自干型纳米新结构涂层,以重量份数计,硅溶胶29份、填料8份、硅氧烷41份、固化剂0.1份、水5份、流平剂1份,有机溶剂10份,多巴胺5份。
其制备方法如下:
1)根据原料配比称取上述分量的硅溶胶、填料、水进行混合并搅拌,研磨至粒径在20μm以下;
2)向步骤1)获得的材料中加入剩余原料,然后充分混合。
将上述用于烟草机械的自干型纳米新结构涂层,包括以下步骤:
1)将所述基材表面进行预处理,并预热;
2)所述基材表面喷涂所述涂层材料2遍至所述基材表面均匀;
3)常温下干燥所述基材24小时。
将上述实施例1中提供的涂层进行安全监测,其检测结果如下:
其中:参考IEC62321-5:2013,用ICP-OES测定镉的含量;
参考IEC62321-5:2013,用ICP-OES测定铅的含量;
参考IEC62321-4:2013,用ICP-OES测定汞的含量;
参考IEC62321:2008,用紫外-可见分光光度计比色法测定六价铬的含量;
参考IEC62321-6:2015,用GC-MS测定PBBs(多溴联苯)的含量。
将上述实施例1中提供的涂层进行耐磨性能测量:
其中,试验参数如下表所示:
上述检测试验证明,本发明提供的涂层无有害物质,符合食品安全要求,适合应用于烟草机械。另外,本发明提供的涂层耐磨性好,质地坚硬,粘合度好,耐高温(200摄氏度)、具有更好的应用性能。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (9)
1.一种用于烟草机械的自干型纳米新结构涂层,其特征在于,以重量份数计,包括以下组分:硅溶胶29-43份、填料8-17份、硅氧烷41-50份、固化剂0.1-1份、水5-12份、流平剂1-3份,有机溶剂10-15份,多巴胺5-10份。
2.根据权利要求1所述的一种用于烟草机械的自干型纳米新结构涂层,其特征在于:还包括颜料1-3份,所述颜料选自钛白粉、钛镍黄、锰铁黑的一种或几种。
3.根据权利要求1所述的一种用于烟草机械的自干型纳米新结构涂层,其特征在于:所述硅溶胶为纳米二氧化硅水分散体,其粒度为10-100nm。
4.根据权利要求1所述的一种用于烟草机械的自干型纳米新结构涂层,其特征在于:所述填料选自纳米氧化锆、纳米碳化硅、纳米氟化钙、纳米氧化锌、纳米氧化镁中的一种或几种;所述硅氧烷选自甲基三甲氧基硅烷、甲基三乙氧基硅烷、乙烯基三甲氧基硅烷、乙烯基三乙氧基硅烷、苯基三甲氧基硅烷、苯基三乙氧基硅烷、γ-甲基丙烯酰氧基丙基三甲氧基硅烷、3-缩水甘油醚氧基丙基三甲氧基硅烷、二甲基二甲氧基硅烷、二甲基二乙氧基硅烷、环氧丙氧丙基甲基二甲氧基硅烷、环氧丙氧丙基甲基二乙氧基硅烷、二苯基二甲氧基硅烷、二苯基二乙氧基硅烷中的一种或几种。
5.根据权利要求1-4任一项所述的一种用于烟草机械的自干型纳米新结构涂层,其特征在于:所述固化剂选自钛酸正丁酯或钛络合物;所述流平剂选自丙烯酸酯类流平剂;所述有机溶剂选自乙醇、异丙醇、正丁醇、丙二醇甲醚中的一种或几种。
6.一种权利要求1-5任一项所述的用于烟草机械的自干型纳米新结构涂层的制备工艺,其特征在于,包括以下步骤:
1)根据原料配比称取相应分量的硅溶胶、填料、水进行混合并搅拌,研磨至粒径在20μm以下;
2)向步骤1)获得的材料中加入剩余原料,然后搅拌使其充分混合。
7.一种涂覆用于烟草机械的自干型纳米新结构涂层的方法,其特征在于,包括以下步骤:
1)将基材表面进行预处理,并预热;
2)在所述基材表面喷涂权利要求1-5任一项所述的用于烟草机械的自干型纳米新结构涂层2-3遍至所述基材表面均匀;
3)常温下干燥所述基材18-30小时。
8.根据权利要求7所述的涂覆用于烟草机械的自干型纳米新结构涂层的方法,其特征在于,所述预处理为将所述基材打磨、除锈、去油,所述预热为30-50℃,所述干燥时间优选24小时。
9.一种涂覆权利要求1-5任一项所述的用于烟草机械的自干型纳米新结构涂层的烟草加工设备。
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Cited By (3)
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CN112674382A (zh) * | 2020-11-26 | 2021-04-20 | 河南中烟工业有限责任公司 | 一种烟草加工设备接触表面处理工艺 |
CN114456706A (zh) * | 2022-02-17 | 2022-05-10 | 苏州卡吉德化学科技有限公司 | 一种金属表面纳米防护涂层及制备方法 |
CN115873501A (zh) * | 2022-12-30 | 2023-03-31 | 湖北金天叶科技有限公司 | 一种食品级防粘涂层及其制备方法 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112674382A (zh) * | 2020-11-26 | 2021-04-20 | 河南中烟工业有限责任公司 | 一种烟草加工设备接触表面处理工艺 |
CN114456706A (zh) * | 2022-02-17 | 2022-05-10 | 苏州卡吉德化学科技有限公司 | 一种金属表面纳米防护涂层及制备方法 |
CN115873501A (zh) * | 2022-12-30 | 2023-03-31 | 湖北金天叶科技有限公司 | 一种食品级防粘涂层及其制备方法 |
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