CN107141882B - 一种水性油墨用水性聚氨酯树酯的合成方法 - Google Patents

一种水性油墨用水性聚氨酯树酯的合成方法 Download PDF

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CN107141882B
CN107141882B CN201710164675.3A CN201710164675A CN107141882B CN 107141882 B CN107141882 B CN 107141882B CN 201710164675 A CN201710164675 A CN 201710164675A CN 107141882 B CN107141882 B CN 107141882B
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邹智
高寅
朱义成
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Jiangsu Brt New Material Co ltd
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Abstract

本发明提出了一种水性油墨用水性聚氨酯树酯的合成方法，包括如下步骤：按重量份数，在反应容器中分别加入聚酯多元醇20‑30份，聚醚多元醇20‑30份，六亚甲基二异氰酸酯2.5‑7份，异氟尔酮二异氰酸酯8‑15份，催化剂0.04，于75‑80℃反应1小时得到预聚体；再加入亲水扩链剂3‑4份，丙酮11‑12份，于70℃反应2小时；加入三乙胺2.5‑3.0份中和反应20分钟，中和后加入到去离子水130‑160份中乳化分散，并维持20‑30分钟；继之滴加小分子二胺0.7‑0.9份进行扩链，搅拌反应1小时，真空脱去丙酮，得到35%‑38%的水性聚氨酯乳液。本发明合成的水性油墨用水性聚氨酯树酯流平性和展色性好，光泽度高，对多种非极性基材具有优异的粘结力。

Description

一种水性油墨用水性聚氨酯树酯的合成方法
技术领域
本发明涉及聚氨酯树酯技术领域，尤其涉及一种水性油墨用水性聚氨酯树酯的合成方法。
背景技术
聚氨酯是由二异氰酸酯或多异氰酸酯与二羟基或多羟基化合物加聚而成。聚氨酯大分子中除了氨基甲酸酯外，还可含有醚、酯、脲、缩二脲，脲基甲酸酯等基团。根据所用原料的不同，可有不同性质的产品，一般为聚酯型和聚醚型两类。可用于制造塑料、橡胶、纤维、硬质和软质泡沫塑料、胶粘剂和涂料等。聚氨酯是一种新兴的有机高分子材料，被誉为“第五大塑料”，因其卓越的性能而被广泛应用于建筑、汽车、轻工、纺织、石化、冶金、电子、国防、医疗、机械等众多领域。
油墨是用于包装材料印刷的重要材料，它通过印刷将图案、文字表现在承印物上。水性油墨由水性连接料、有机颜料、溶剂及相关助剂经复合研磨加工而成，特别适用于烟、酒、食品、饮料、药品、儿童玩具等卫生条件要求严格的包装印刷产品。水性油墨用水来代替传统油墨中占30%～70%的有毒有机溶剂，故在印刷过程中对工人的健康影响小，对大气环境污染小，还消除了工作场所易燃易爆的隐患，提高了安全性，是一种公认的环保型油墨。目前，水性油墨连接料用的较多的是水性聚氨酯树脂、水性聚丙烯酸树脂和水性改性丙烯酸树脂。其中，水性聚氨酯油墨以其良好的耐磨性、耐擦伤性、耐溶剂性、软硬平衡性和高光泽等优点正受到越来越多的关注。普通的水性聚氨酯树脂存在干燥速度慢、对非极性基材润湿差、初粘力低等不足，不能满足多种领域的要求，需要开发性能更加优越的水性油墨用水性聚氨酯树脂，扩大其应用领域。
发明内容
基于背景技术存在的问题，本发明提出了一种水性油墨用水性聚氨酯树酯的合成方法，通过该方法制得的水性聚氨酯树酯流平性和展色性好，光泽度高，对多种非极性基材具有优异的粘结力。本发明提出的一种水性油墨用水性聚氨酯树酯的合成方法，包括如下步骤：
（1）按重量份数，在反应容器中分别加入聚酯多元醇20-30份，聚醚多元醇20-30份，六亚甲基二异氰酸酯2.5-7份，异氟尔酮二异氰酸酯8-15份，催化剂0.04，于75-80℃反应1小时得到预聚体；
（2）再加入亲水扩链剂3-4份，丙酮11-12份，于70℃反应2小时；
（3）加入三乙胺2.5-3.0份中和反应20分钟，中和后的预聚体加入到去离子水130-160份中乳化分散，并维持20-30分钟；
（4）继之滴加小分子二胺0.7-0.9份进行扩链，搅拌反应1小时，真空脱去丙酮，得到35%-38%的水性聚氨酯乳液；
（5）最后加入去离子水、助溶剂、氨基硅烷0.9-1.1份，增稠剂0.5-1.0份，流平剂0.3-0.5份，搅拌1小时，过滤，最后得到固含量30%、粘度为16.0～18.0（秒/涂3杯）的水性油墨用水性聚氨酯树酯。
其中，所述的聚酯多元醇为聚己二酸丁二醇酯二醇、聚己二酸己二醇酯二醇的其中一种；聚醚多元醇为聚氧化丙烯二醇、聚四氢呋喃醚的其中一种。
其中，所述催化剂为有机铋、二月桂酸丁基锡的其中一种。
其中，所述亲水扩链剂为二羟甲基丙酸、二羟甲基丁酸的其中一种。
其中，所述小分子二胺为乙二胺、异氟尔酮二胺的其中一种或两种
其中，所述助溶剂为乙醇、异丙醇、丁醇的其中一种或两种。
其中，所述氨基硅烷为氨乙基氨丙基三乙氧基硅烷、γ-氨丙基三乙氧基硅烷的其中一种。
本发明在制备的过程，使用聚酯多元醇和聚醚多元醇与二异氰酸酯进行共聚 ，同时使用氨基硅烷进行改性。通过该方法制得的水性聚氨酯树酯稳定性好，流平性和展色性好，光泽度高，对多种非极性基材具有优异的粘结力。
具体实施方式
下面结合具体实施例进一步说明本发明的技术方案，这些实施例不能理解为是对技术方案的限制。
实施例1
本发明提出的一种水性聚氨酯油墨用水性聚氨酯树酯的合成方法，包括如下步骤：
（1）按重量份数，在反应容器中分别加入聚己二酸丁二醇酯二醇25份，聚氧化丙烯二醇25份，六亚甲基二异氰酸酯6.7份，异氟尔酮二异氰酸酯8.9份，催化剂0.04，于75-80℃反应1小时得到预聚体；
（2）再加入二羟甲基丙酸4份，丙酮11.5份，于70℃反应2小时；
（3）加入三乙胺3份中和反应20分钟，中和后的预聚体加入到去离子水145份中乳化分散，并维持20-30分钟；
（4）继之滴加乙二胺0.9份进行扩链，搅拌反应1小时，真空脱去丙酮，得到35%-38%的水性聚氨酯乳液；
（5）最后加入去离子水、助溶剂、氨基硅烷1.0份，增稠剂0.8份，流平剂0.5份，搅拌1小时，过滤，最后得到固含量30%、粘度为16.0（秒/涂3杯）的水性油墨用水性聚氨酯树酯。
实施例2
本发明提出的一种水性聚氨酯油墨用水性聚氨酯树酯的合成方法，包括如下步骤：
（1）按重量份数，在反应容器中分别加入聚己二酸丁二醇酯二醇25份，聚四氢呋喃醚二醇25份，六亚甲基二异氰酸酯6.7份，异氟尔酮二异氰酸酯8.9份，催化剂0.04，于75-80℃反应1小时得到预聚体；
（2）再加入二羟甲基丙酸4份，丙酮11.5份，于70℃反应2小时；
（3）加入三乙胺3份中和反应20分钟，中和后的预聚体加入到去离子水145份中乳化分散，并维持20-30分钟；
（4）继之滴加乙二胺0.9份进行扩链，搅拌反应1小时，真空脱去丙酮，得到35%-38%的水性聚氨酯乳液；
（5）最后加入去离子水、助溶剂、氨基硅烷1.0份，增稠剂0.8份，流平剂0.5份，搅拌1小时，过滤，最后得到固含量30%、粘度为16.8（秒/涂3杯）的水性油墨用水性聚氨酯树酯。
实施例3
本发明提出的一种水性聚氨酯油墨用水性聚氨酯树酯的合成方法，包括如下步骤：
（1）按重量份数，在反应容器中分别加入聚己二酸己二醇酯二醇25份，聚氧化丙烯二醇25份，六亚甲基二异氰酸酯6.7份，异氟尔酮二异氰酸酯8.9份，催化剂0.04，于75-80℃反应1小时得到预聚体；
（2）再加入二羟甲基丙酸4份，丙酮11.5份，于70℃反应2小时；
（3）加入三乙胺3份中和反应20分钟，中和后的预聚体加入到去离子水145份中乳化分散，并维持20-30分钟；
（4）继之滴加乙二胺0.9份进行扩链，搅拌反应1小时，真空脱去丙酮，得到35%-38%的水性聚氨酯乳液；
（5）最后加入去离子水、助溶剂、氨基硅烷1.0份，增稠剂0.8份，流平剂0.5份，搅拌1小时，过滤，最后得到固含量30%、粘度为17.2（秒/涂3杯）的水性油墨用水性聚氨酯树酯。
实施例4
本发明提出的一种水性聚氨酯油墨用水性聚氨酯树酯的合成方法，包括如下步骤：
（1）按重量份数，在反应容器中分别加入聚己二酸己二醇酯二醇25份，聚四氢呋喃醚二醇25份，六亚甲基二异氰酸酯6.7份，异氟尔酮二异氰酸酯8.9份，催化剂0.04，于75-80℃反应1小时得到预聚体；
（2）再加入二羟甲基丙酸4份，丙酮11.5份，于70℃反应2小时；
（3）加入三乙胺3份中和反应20分钟，中和后的预聚体加入到去离子水145份中乳化分散，并维持20-30分钟；
（4）继之滴加乙二胺0.9份进行扩链，搅拌反应1小时，真空脱去丙酮，得到35%-38%的水性聚氨酯乳液；
（5）最后加入去离子水、助溶剂、氨基硅烷1.0份，增稠剂0.8份，流平剂0.5份，搅拌1小时，过滤，最后得到固含量30%、粘度为16.5（秒/涂3杯）的水性油墨用水性聚氨酯树酯。
实施例5
本发明提出的一种水性聚氨酯油墨用水性聚氨酯树酯的合成方法，包括如下步骤：
（1）按重量份数，在反应容器中分别加入聚己二酸己二醇酯二醇25份，聚四氢呋喃醚二醇25份，六亚甲基二异氰酸酯2.7份，异氟尔酮二异氰酸酯14.2份，催化剂0.04，于75-80℃反应1小时得到预聚体；
（2）再加入二羟甲基丙酸4份，丙酮12份，于70℃反应2小时；
（3）加入三乙胺3份中和反应20分钟，中和后的预聚体加入到去离子水153份中乳化分散，并维持20-30分钟；
（4）继之滴加乙二胺0.9份进行扩链，搅拌反应1小时，真空脱去丙酮，得到35%-38%的水性聚氨酯乳液；
（5）最后加入去离子水、助溶剂、氨基硅烷1.0份，增稠剂0.8份，流平剂0.5份，搅拌1小时，过滤，最后得到固含量30%、粘度为17.0（秒/涂3杯）的水性油墨用水性聚氨酯树酯。
5种实施例水性聚氨酯树酯的性能检测和制作成水性聚氨酯油墨的性能检测见下表：
Figure DEST_PATH_IMAGE001
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (1)

1.一种水性油墨用水性聚氨酯树脂 的合成方法，其特征在于，包括如下步骤：
(1)按重量份数，在反应容器中分别加入聚己二酸丁二醇酯二醇25份，聚氧化丙烯二醇25份，六亚甲基二异氰酸酯6.7份，异氟尔酮二异氰酸酯8.9份，催化剂0.04，于75-80℃反应1小时得到预聚体；
(2)再加入二羟甲基丙酸4份，丙酮11.5份，于70℃反应2小时；
(3)加入三乙胺3份中和反应20分钟，中和后的预聚体加入到去离子水145份中乳化分散，并维持20-30分钟；
(4)继之滴加乙二胺0.9份进行扩链，搅拌反应1小时，真空脱去丙酮，得到35％-38％的水性聚氨酯乳液；
(5)最后加入去离子水、助溶剂、氨基硅烷1.0份，增稠剂0.8份，流平剂0.5份，搅拌1小时，过滤，最后得到固含量30％、粘度为16.0秒/涂3杯的水性油墨用水性聚氨酯树脂 。
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