CN109954642A - 一种耐腐蚀亲水铝箔生产加工工艺 - Google Patents

一种耐腐蚀亲水铝箔生产加工工艺 Download PDF

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CN109954642A
CN109954642A CN201910219354.8A CN201910219354A CN109954642A CN 109954642 A CN109954642 A CN 109954642A CN 201910219354 A CN201910219354 A CN 201910219354A CN 109954642 A CN109954642 A CN 109954642A
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aluminium foil
coating
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江孝星
曹小军
章江
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HUANGSHAN TIANMA ALUMINIUM CO Ltd
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Abstract

本发明公开了一种耐腐蚀亲水铝箔生产加工工艺，包括亲水涂层的制备，预处理浸泡硅烷偶联剂水解液，涂覆，在双管中波红外灯管下进行烘干，调节热能波长调节为为2‑4μm，然后再在紫外固化灯下照射，本发明采用改性环氧树脂作为溶胶剂，并通过改性硅包覆纳米二氧化钛引入纳米粒子，改善了涂层的韧性、耐腐蚀、耐候性等性能；本发明将铝箔在硅烷偶联剂水解液中进行浸泡处理，增加了铝箔表面与亲水涂层的相容性，使得涂层附着性好，硅烷偶联剂水解液采用特定的硅烷偶联剂，涂覆效果好，防腐性能高；本发明采用双管中波红外灯管进行烘干，能耗低，可控性强，同时通过双管中波红外灯管和紫外固化灯管进行双重处理，烘干质量好。

Description

一种耐腐蚀亲水铝箔生产加工工艺
技术领域
本发明涉及铝箔生产相关领域，具体为一种耐腐蚀亲水铝箔生产加工工艺。
背景技术
铝箔是一种用金属铝直接压延成薄片的烫印材料，其烫印效果与纯银箔烫印的效果相似，故又称假银箔。由于铝的质地柔软、延展性好，具有银白色的光泽，如果将压延后的薄片，用硅酸钠等物质裱在胶版纸上制成铝箔片，还可进行印刷。铝箔因其优良的特性，广泛用于食品、饮料、香烟、药品、照相底板、家庭日用品等，通常用作其包装材料；电解电容器材料；建筑、车辆、船舶、房屋等的绝热材料；还可以作为装饰的金银线、壁纸以及各类文具印刷品和轻工产品的装潢商标等。在上述各种用途中，能最有效地发挥铝箔性能点的是作为包装材料。铝箔是柔软的金属薄膜，不仅具有防潮、气密、遮光、耐磨蚀、保香、无毒无味等优点，而且还因为其有优雅的银白色光泽，易于加工出各种色彩的美丽图案和花纹，因而更容易受到人们的青睐。
亲水铝箔，亲水铝箔是对铝箔进行亲水处理，通过特殊工艺处理，在其表面覆膜一层亲水层，冷凝水在亲水铝箔上会迅速散开，不会凝结成水珠，增大热交换面积，加快制冷制热速度，还有效避免冷凝水阻碍空气流动而产生的噪音，是家用空调换热片的主要原材料，对空调器的效率有着极大影响。
目前普遍存在着因为亲水聚合物与铝片表面的相容性较差，而导致亲水涂层的附着力较差的问题；涂层在加热烘干时使用比较普遍的是真空短波灯管，虽然真空短波灯管具有烘干用时短的优点，但其无法按照不同涂料的涂层表面烘干的温度要求加热，导致亲水铝箔的烘干质量差；同时在某些特殊环境下，对亲水铝箔的耐腐蚀性能提出了更高的要求。
发明内容
本发明的目的在于提供一种耐腐蚀亲水铝箔生产加工工艺，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：
一种耐腐蚀亲水铝箔生产加工工艺，包括如下具体步骤：
S1：亲水涂层制备：按如下质量配比准备原料：双酚A环氧树脂70-90份、改性硅包覆纳米二氧化钛1-2份、丙酮6-10份、辅助剂10-15份、固化剂25-40份、柠檬酸7-10份、UV固化低聚物混合物80-150份、光引发剂2-6份、乳化剂3-5份，具体的：
S11：将改性硅包覆纳米二氧化钛、柠檬酸和丙酮混合，超声波震荡30-35min，得到悬浮液备用；
S12：将双酚A环氧树脂与悬浮液在反应釜中混合，快速搅拌后，将温度升至100-130℃，待丙酮全部挥发，加入辅助剂，接上冷凝管，恒温反应2.5-3h，再转移到球磨机内高速分散40-50min，冷却后加入固化剂搅拌均匀，得到改性环氧树脂；
S13：将UV固化低聚物混合物、光引发剂、乳化剂混合均匀，得到UV固化水性涂料；
S14：将步骤S12中得到的改性环氧树脂与步骤S13中得到的UV固化水性涂料混合，超声分散均匀得到亲水涂层；
S2：预处理：按如下质量配比准备原料：硅烷偶联剂10-15份、去离子水20-40份、多元醇3-5份、片状锌粉1-2份，硼酸2-4份；
S21：将硅烷偶联剂、去离子水、多元醇、硼酸混合搅拌均匀，调节PH为4-6，加入片状锌粉，搅拌得到硅烷偶联剂水解液；
S22：将铝片打磨后清洗干净，烘干，再放入步骤S21中得到的硅烷偶联剂水解液中浸泡15-30min；
S3：涂覆：将步骤S1中的亲水涂层用涂膜器涂覆在步骤S22中处理后的铝箔表面，在双管中波红外灯管下进行烘干，调节热能波长调节为为2-4μm，烘干温度控制在80-110℃，固化时间为3-5min；然后再在紫外固化灯下照射1-1.5min，波长为245-405nm。
作为本发明一种优选的技术方案，所述辅助剂为活性稀释剂、分散剂、流平剂、消泡剂和固化剂。
作为本发明一种优选的技术方案，步骤S12中，双酚A环氧树脂要事先在反应釜中预热25-30min，再加入悬浮液。
作为本发明一种优选的技术方案，所述UV固化低聚物混合物为：10-50份单官能UV固化低聚物、60-80份双官能UV固化低聚物和10-20份多官能UV固化低聚物。
作为本发明一种优选的技术方案，所述多元醇为乙二醇、甘油、1，3-丙二醇或1，2-丙二醇。
作为本发明一种优选的技术方案，步骤S14中超声分散的超声频率为20-40KHz，功率范围为300-500W。
作为本发明一种优选的技术方案，步骤S13中所述光引发剂为二苯酮衍生物、硫杂蒽酮衍生物、烷基芳酮衍生物或苯偶酰衍生物。
与现有技术相比，本发明的有益效果是：
1.本发明采用改性环氧树脂作为溶胶剂，并通过改性硅包覆纳米二氧化钛引入纳米粒子，改善了涂层的韧性、耐腐蚀、耐候性等性能。
2.本发明将铝箔在硅烷偶联剂水解液中进行浸泡处理，增加了铝箔表面与亲水涂层的相容性，使得涂层附着性好，硅烷偶联剂水解液采用特定的硅烷偶联剂，涂覆效果好，防腐性能高。
3.本发明采用双管中波红外灯管进行烘干，能耗低，可控性强，同时通过双管中波红外灯管和紫外固化灯管进行双重处理，烘干质量好。
具体实施方式
下面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：本发明提供一种技术方案：一种耐腐蚀亲水铝箔生产加工工艺，包括如下具体步骤：
S1：亲水涂层制备：按如下质量配比准备原料：双酚A环氧树脂70-90份、改性硅包覆纳米二氧化钛1-2份、丙酮6-10份、辅助剂10-15份、固化剂25-40份、柠檬酸7-10份、UV固化低聚物混合物80-150份、光引发剂2-6份、乳化剂3-5份，具体的：
S11：将改性硅包覆纳米二氧化钛、柠檬酸和丙酮混合，超声波震荡30-35min，得到悬浮液备用；
S12：将双酚A环氧树脂与悬浮液在反应釜中混合，快速搅拌后，将温度升至100-130℃，待丙酮全部挥发，加入辅助剂，接上冷凝管，恒温反应2.5-3h，再转移到球磨机内高速分散40-50min，冷却后加入固化剂搅拌均匀，得到改性环氧树脂；
S13：将UV固化低聚物混合物、光引发剂、乳化剂混合均匀，得到UV固化水性涂料；
S14：将步骤S12中得到的改性环氧树脂与步骤S13中得到的UV固化水性涂料混合，超声分散均匀得到亲水涂层；
S2：预处理：按如下质量配比准备原料：硅烷偶联剂10-15份、去离子水20-40份、多元醇3-5份、片状锌粉1-2份，硼酸2-4份；
S21：将硅烷偶联剂、去离子水、多元醇、硼酸混合搅拌均匀，调节PH为4-6，加入片状锌粉，搅拌得到硅烷偶联剂水解液；
S22：将铝片打磨后清洗干净，烘干，再放入步骤S21中得到的硅烷偶联剂水解液中浸泡15-30min；
S3：涂覆：将步骤S1中的亲水涂层用涂膜器涂覆在步骤S22中处理后的铝箔表面，在双管中波红外灯管下进行烘干，调节热能波长调节为为2-4μm，烘干温度控制在80-110℃，固化时间为3-5min；然后再在紫外固化灯下照射1-1.5min，波长为245-405nm。
作为本发明一种优选的技术方案，所述辅助剂为活性稀释剂、分散剂、流平剂、消泡剂和固化剂。
作为本发明一种优选的技术方案，步骤S12中，双酚A环氧树脂要事先在反应釜中预热25-30min，再加入悬浮液。
作为本发明一种优选的技术方案，所述UV固化低聚物混合物为：10-50份单官能UV固化低聚物、60-80份双官能UV固化低聚物和10-20份多官能UV固化低聚物。
作为本发明一种优选的技术方案，所述多元醇为乙二醇、甘油、1，3-丙二醇或1，2-丙二醇。
作为本发明一种优选的技术方案，步骤S14中超声分散的超声频率为20-40KHz，功率范围为300-500W。
作为本发明一种优选的技术方案，步骤S13中所述光引发剂为二苯酮衍生物、硫杂蒽酮衍生物、烷基芳酮衍生物或苯偶酰衍生物。
本发明采用改性环氧树脂作为溶胶剂，并通过改性硅包覆纳米二氧化钛引入纳米粒子，改善了涂层的韧性、耐腐蚀、耐候性等性能；本发明将铝箔在硅烷偶联剂水解液中进行浸泡处理，增加了铝箔表面与亲水涂层的相容性，使得涂层附着性好，硅烷偶联剂水解液采用特定的硅烷偶联剂，涂覆效果好，防腐性能高；本发明采用双管中波红外灯管进行烘干，能耗低，可控性强，同时通过双管中波红外灯管和紫外固化灯管进行双重处理，烘干质量好。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (7)

1.一种耐腐蚀亲水铝箔生产加工工艺，其特征在于，包括如下具体步骤：
S1：亲水涂层制备：按如下质量配比准备原料：双酚A环氧树脂70-90份、改性硅包覆纳米二氧化钛1-2份、丙酮6-10份、辅助剂10-15份、固化剂25-40份、柠檬酸7-10份、UV固化低聚物混合物80-150份、光引发剂2-6份、乳化剂3-5份，具体的：
S11：将改性硅包覆纳米二氧化钛、柠檬酸和丙酮混合，超声波震荡30-35min，得到悬浮液备用；
S12：将双酚A环氧树脂与悬浮液在反应釜中混合，快速搅拌后，将温度升至100-130℃，待丙酮全部挥发，加入辅助剂，接上冷凝管，恒温反应2.5-3h，再转移到球磨机内高速分散40-50min，冷却后加入固化剂搅拌均匀，得到改性环氧树脂；
S13：将UV固化低聚物混合物、光引发剂、乳化剂混合均匀，得到UV固化水性涂料；
S14：将步骤S12中得到的改性环氧树脂与步骤S13中得到的UV固化水性涂料混合，超声分散均匀得到亲水涂层；
S2：预处理：按如下质量配比准备原料：硅烷偶联剂10-15份、去离子水20-40份、多元醇3-5份、片状锌粉1-2份，硼酸2-4份；
S21：将硅烷偶联剂、去离子水、多元醇、硼酸混合搅拌均匀，调节PH为4-6，加入片状锌粉，搅拌得到硅烷偶联剂水解液；
S22：将铝片打磨后清洗干净，烘干，再放入步骤S21中得到的硅烷偶联剂水解液中浸泡15-30min；
S3：涂覆：将步骤S1中的亲水涂层用涂膜器涂覆在步骤S22中处理后的铝箔表面，在双管中波红外灯管下进行烘干，调节热能波长调节为为2-4μm，烘干温度控制在80-110℃，固化时间为3-5min；然后再在紫外固化灯下照射1-1.5min，波长为245-405nm。
2.根据权利要求1所述的一种耐腐蚀亲水铝箔生产加工工艺，其特征在于，所述辅助剂为活性稀释剂、分散剂、流平剂、消泡剂和固化剂。
3.根据权利要求1所述的一种耐腐蚀亲水铝箔生产加工工艺，其特征在于，步骤S12中，双酚A环氧树脂要事先在反应釜中预热25-30min，再加入悬浮液。
4.根据权利要求1所述的一种耐腐蚀亲水铝箔生产加工工艺，其特征在于，所述UV固化低聚物混合物为：10-50份单官能UV固化低聚物、60-80份双官能UV固化低聚物和10-20份多官能UV固化低聚物。
5.根据权利要求1所述的一种耐腐蚀亲水铝箔生产加工工艺，其特征在于，所述多元醇为乙二醇、甘油、1，3-丙二醇或1，2-丙二醇。
6.根据权利要求1所述的一种耐腐蚀亲水铝箔生产加工工艺，其特征在于，步骤S14中超声分散的超声频率为20-40KHz，功率范围为300-500W。
7.根据权利要求1所述的一种耐腐蚀亲水铝箔生产加工工艺，其特征在于，步骤S13中所述光引发剂为二苯酮衍生物、硫杂蒽酮衍生物、烷基芳酮衍生物或苯偶酰衍生物。
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CN113658803A (zh) * 2021-08-24 2021-11-16 西安稀有金属材料研究院有限公司 一种铝电解电容器阳极烧结箔用双组分铝浆及其制备方法
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CN113658803B (zh) * 2021-08-24 2022-08-30 西安稀有金属材料研究院有限公司 一种铝电解电容器阳极烧结箔用双组分铝浆及其制备方法
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