CN108049193A - 聚氨酯皮革的制备方法 - Google Patents

聚氨酯皮革的制备方法 Download PDF

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CN108049193A
CN108049193A CN201711362703.9A CN201711362703A CN108049193A CN 108049193 A CN108049193 A CN 108049193A CN 201711362703 A CN201711362703 A CN 201711362703A CN 108049193 A CN108049193 A CN 108049193A
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周建
颜玉荣
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Suzhou Hao Yang Pu Technology Co Ltd
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Abstract

本发明公开了一种聚氨酯皮革的制备方法，包括步骤：(1)将聚酯型和/或聚醚型水性聚氨酯、发泡助剂、增稠剂和流平剂混匀，得到混合乳液；(2)将部分步骤(1)中得到的混合乳液在离型纸上铺膜、干燥，得到离型纸膜层；(3)将其余部分步骤(1)中得到的混合乳液搅拌发泡，得到发泡乳液；(4)将步骤(3)中得到的发泡乳液分别在步骤(2)中得到的离型纸膜层和非织造布基底上铺膜层、干燥，得到离型纸复合膜层和非织造布基底膜层，将离型纸复合膜层和非织造布基底膜层贴合并干燥，得到所述聚氨酯皮革。本发明的制备方法简单、易操作，条件温和、易实现；制备过程中无毒、环保，不会造成二次污染。

Description

聚氨酯皮革的制备方法
技术领域
本发明涉及聚氨酯领域，尤其涉及一种聚氨酯皮革的制备方法。
背景技术
我国合成革年产量占世界年总产量的80％以上，其中超纤革是主要发展方向。超纤革真正实现了模拟天然皮革的结构形态，在强度、舒适性、透气透湿性、耐化学性、抗皱性、耐磨性、可加工适应性以及质量均一等诸方面优于天然皮革，是替代天然皮革的最佳产品。目前超纤革主要以海岛型(聚乙烯/聚酰胺6或聚酯/水溶性聚酯)超细纤维非织造布为增强材料，以聚氨酯为基体，在减量和制革过程中，会不可避免地造成甲苯(PhMe，开纤过程)、二甲基甲酰胺(DMF，制革过程)等有机溶剂污染和残留，带来严重的环境危害，严重制约了我国超纤革产业的发展，已成为行业发展的瓶颈问题。
发明内容
发明目的：本发明提供了一种聚氨酯皮革的制备方法，该制备方法简单易实现，避免了现有技术中造成环境污染的问题。
技术方案：本发明的聚氨酯皮革的制备方法，包括以下步骤：
(1)将聚酯型和/或聚醚型水性聚氨酯、发泡助剂、增稠剂和流平剂混匀，得到混合乳液；
(2)将部分步骤(1)中得到的混合乳液在离型纸上铺0.2mm膜层，并在40-80℃条件下干燥，得到离型纸膜层；
(3)将其余部分步骤(1)中得到的混合乳液搅拌，直至发泡率为160％，得到发泡乳液；
(4)将步骤(3)中得到的发泡乳液分别在步骤(2)中得到的离型纸膜层和非织造布基底上铺0.3mm和0.1mm的膜层，并在40-80℃条件下干燥，得到离型纸复合膜层和非织造布基底膜层，将离型纸复合膜层和非织造布基底膜层贴合并干燥，得到所述聚氨酯皮革。
步骤(1)中，所述水性聚氨酯为TDI型和HDI型中的一种或两种。
步骤(1)中，还加入稳泡助剂。
所述稳泡助剂为硬酯酸铵。
所述水性聚氨酯、发泡助剂和流平剂的质量比为45-50:1:0.5-1
水性聚氨酯以水为分散介质，具有无毒、低VOC等环保方面的优点，已成为合成革行业传统溶剂型聚氨酯的理想替代品。
有益效果：1、本发明的制备方法简单、易操作，条件温和、易实现；2、制备过程中无毒、环保，不会造成二次污染；3、原料来源简单，成本低。
具体实施方式
实施例1
聚氨酯皮革的制备方法，包括以下步骤：
(1)将45g TDI型聚酯型水性聚氨酯、1g发泡助剂月桂基磺化琥珀酸单酯二钠、1g增稠剂、0.5g稳泡助剂硬酯酸铵和0.5g流平剂混匀，得到混合乳液；
(2)将部分步骤(1)中得到的混合乳液在离型纸上铺0.2mm膜层，并在40℃条件下干燥，得到离型纸膜层；
(3)将其余部分步骤(1)中得到的混合乳液搅拌，直至发泡率为150％，得到发泡乳液；
(4)将步骤(3)中得到的发泡乳液分别在步骤(2)中得到的离型纸膜层和非织造布基底上铺0.3mm和0.1mm的膜层，并在40℃条件下干燥，得到离型纸复合膜层和非织造布基底膜层，将离型纸复合膜层和非织造布基底膜层贴合并干燥，得到所述聚氨酯皮革。
实施例2
聚氨酯皮革的制备方法，包括以下步骤：
(1)将47g HDI型聚醚型水性聚氨酯、1g发泡助剂月桂基磺化琥珀酸单酯二钠、0.7g增稠剂和0.7g流平剂混匀，得到混合乳液；
(2)将部分步骤(1)中得到的混合乳液在离型纸上铺0.2mm膜层，并在40-80℃条件下干燥，得到离型纸膜层；
(3)将其余部分步骤(1)中得到的混合乳液搅拌，直至发泡率为160％，得到发泡乳液；
(4)将步骤(3)中得到的发泡乳液分别在步骤(2)中得到的离型纸膜层和非织造布基底上铺0.3mm和0.1mm的膜层，并在60℃条件下干燥，得到离型纸复合膜层和非织造布基底膜层，将离型纸复合膜层和非织造布基底膜层贴合并干燥，得到所述聚氨酯皮革。
实施例3
聚氨酯皮革的制备方法，包括以下步骤：
(1)将50g聚酯型水性聚氨酯、1g发泡助剂月桂基磺化琥珀酸单酯二钠、1g增稠剂和1g流平剂混匀，得到混合乳液；
(2)将部分步骤(1)中得到的混合乳液在离型纸上铺0.2mm膜层，并在80℃条件下干燥，得到离型纸膜层；
(3)将其余部分步骤(1)中得到的混合乳液搅拌，直至发泡率为160％，得到发泡乳液；
(4)将步骤(3)中得到的发泡乳液分别在步骤(2)中得到的离型纸膜层和非织造布基底上铺0.3mm和0.1mm的膜层，并在80℃条件下干燥，得到离型纸复合膜层和非织造布基底膜层，将离型纸复合膜层和非织造布基底膜层贴合并干燥，得到所述聚氨酯皮革。

Claims (5)

1.一种聚氨酯皮革的制备方法，其特征在于，包括以下步骤：
(1)将聚酯型和/或聚醚型水性聚氨酯、发泡助剂、增稠剂和流平剂混匀，得到混合乳液；
(2)将部分步骤(1)中得到的混合乳液在离型纸上铺0.2mm膜层，并在40-80℃条件下干燥，得到离型纸膜层；
(3)将其余部分步骤(1)中得到的混合乳液搅拌，直至发泡率为160％，得到发泡乳液；
(4)将步骤(3)中得到的发泡乳液分别在步骤(2)中得到的离型纸膜层和非织造布基底上铺0.3mm和0.1mm的膜层，并在40-80℃条件下干燥，得到离型纸复合膜层和非织造布基底膜层，将离型纸复合膜层和非织造布基底膜层贴合并干燥，得到所述聚氨酯皮革。
2.根据权利要求1所述的制备方法，其特征在于：步骤(1)中，所述水性聚氨酯为TDI型和HDI型中的一种或两种。
3.根据权利要求1所述的制备方法，其特征在于：步骤(1)中，还加入稳泡助剂。
4.根据权利要求3所述的制备方法，其特征在于：所述稳泡助剂为硬酯酸铵。
5.根据权利要求1所述的制备方法，其特征在于：所述水性聚氨酯、发泡助剂和流平剂的质量比为45-50:1:0.5-1。
CN201711362703.9A 2017-12-18 2017-12-18 聚氨酯皮革的制备方法 Withdrawn CN108049193A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114481642A (zh) * 2022-01-31 2022-05-13 广东卡西奥新材料有限公司 一种聚醚聚氨酯新型材料及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1931941A (zh) * 2006-09-14 2007-03-21 华明扬 水性聚氨酯防水透气透湿抗菌涂层胶的制备方法
CN101798454A (zh) * 2010-04-06 2010-08-11 建德市顺发化工助剂有限公司 用于人造合成革与涂料的改性水性聚氨酯及其制备方法
CN103556487A (zh) * 2013-08-31 2014-02-05 浙江五洲实业有限公司 水性装饰革
CN104194315A (zh) * 2014-09-15 2014-12-10 山东天庆科技发展有限公司 一种水性聚氨酯树脂及其在剖层皮水性微孔涂层革的应用

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1931941A (zh) * 2006-09-14 2007-03-21 华明扬 水性聚氨酯防水透气透湿抗菌涂层胶的制备方法
CN101798454A (zh) * 2010-04-06 2010-08-11 建德市顺发化工助剂有限公司 用于人造合成革与涂料的改性水性聚氨酯及其制备方法
CN103556487A (zh) * 2013-08-31 2014-02-05 浙江五洲实业有限公司 水性装饰革
CN104194315A (zh) * 2014-09-15 2014-12-10 山东天庆科技发展有限公司 一种水性聚氨酯树脂及其在剖层皮水性微孔涂层革的应用

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114481642A (zh) * 2022-01-31 2022-05-13 广东卡西奥新材料有限公司 一种聚醚聚氨酯新型材料及其制备方法

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Application publication date: 20180518