CN111087569A - 一种合成革用无溶剂湿法发泡聚氨酯的制备方法 - Google Patents

一种合成革用无溶剂湿法发泡聚氨酯的制备方法 Download PDF

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CN111087569A
CN111087569A CN201911311120.2A CN201911311120A CN111087569A CN 111087569 A CN111087569 A CN 111087569A CN 201911311120 A CN201911311120 A CN 201911311120A CN 111087569 A CN111087569 A CN 111087569A
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mixture
foaming
catalyst
solvent
synthetic leather
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黄小平
戴启彬
黄明珠
张嘉栋
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Fujian Xiaowei Jinshi Technology Incubation Co ltd
Fujian Chengjie Polymer Material Co ltd
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Fujian Chengjie Polymer Material Co ltd
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Abstract

本发明公开了一种合成革用无溶剂湿法发泡聚氨酯的制备方法，包括以下步骤：S1、混合：将主料、催化剂和辅助剂按照所需比例依次投放于反应釜内，按照需要进行搅拌，得到混合物，然后将混合物进行脱水；S2、储存：将得到的混合物进行检测，检测完成后，封存后进行储存，所述主料包括多元醇和异氰酸酯，所述多元醇设置为聚酯多元醇、聚醚酯多元醇、聚四氢呋喃二醇、聚氧化乙烯‑聚氧化丙烯共聚醚多元醇中的一种或多种的混合物，所述异氰酸酯设置为甲苯二异氰酸酯、二苯基亚甲基二异氰酸酯、异佛尔酮二异氰酸酯中的一种或多种任意比例的混合物。该合成革用无溶剂湿法发泡聚氨酯的制备方法，能够提升加工效果和效率，便于后续的加工的进行。

Description

一种合成革用无溶剂湿法发泡聚氨酯的制备方法
技术领域
本发明属于聚氨酯的制备技术领域，具体涉及一种合成革用无溶剂湿法发泡聚氨酯的制备方法。
背景技术
聚氨酯是一种高分子材料。在日常生活中的应用广泛如家具中的油漆和涂料，家用电器中的冰箱和冷柜，建筑业中的屋顶防水保温层和内外墙涂料等。还可以做成各种聚氨酯材料如聚氨酯鞋底，聚氨酯纤维，聚氨酯密封胶等。总体来说聚氨酯制品性能可调范围宽、适应性强、耐生物老化、价格适中。目前，聚氨酯合成革的生产主要采用溶剂型的生产系统，其中发泡涂层采用湿法凝固工艺得到，其基本工艺流程：将溶剂型聚氨酯刮涂到非织造布上，然后湿法凝固，再经过水洗干燥。采用这种方法得到发泡的聚氨酯涂层，但是传统的聚氨酯涂层，加工效率一般，影响后续生产的效率。
因此针对这一现状，迫切需要设计和生产一种合成革用无溶剂湿法发泡聚氨酯的制备方法，以满足实际使用的需要。
发明内容
本发明的目的在于提供一种合成革用无溶剂湿法发泡聚氨酯的制备方法，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：一种合成革用无溶剂湿法发泡聚氨酯的制备方法，包括以下步骤：
S1、混合：将主料、催化剂和辅助剂按照所需比例依次投放于反应釜内，按照需要进行搅拌，得到混合物，然后将混合物进行脱水；
S2、储存：将得到的混合物进行检测，检测完成后，如若合格，封存后进行储存。
优选的，所述主料包括多元醇和异氰酸酯，所述多元醇设置为聚酯多元醇、聚醚酯多元醇、聚四氢呋喃二醇、聚氧化乙烯-聚氧化丙烯共聚醚多元醇中的一种或多种的混合物。
优选的，所述异氰酸酯设置为甲苯二异氰酸酯、二苯基亚甲基二异氰酸酯、异佛尔酮二异氰酸酯中的一种或多种任意比例的混合物。
优选的，所述催化剂包括发泡催化剂和凝胶催化剂，发泡催化剂设置为有机锡类催化剂、有机铋类催化剂、叔胺类催化剂的一种或者一种以上混合物，凝胶催化剂设置为二异丙醇胺和异丙醇胺中的一种或者两种的任意比例的混合物。
优选的，所述辅助剂包括扩链剂、发泡物、发泡稳定剂和防腐剂，所述扩链剂设置为乙二醇、1,3-丙二醇、丙三醇、1,4-丁二醇中的一种或者多种任意比例的混合物。
优选的，所述发泡物包括物理发泡剂和化学发泡剂，所述物理发泡剂设置为环戊烷和环丁烷的两种等比例的混合物，所述化学发泡剂设置为二甲氨基乙氧基乙醇、三甲基羟乙基乙二胺、3N-三甲基-N-羟乙基双氨乙基醚中的一种。
优选的，所述发泡稳定剂为有机硅表面活性剂或聚醚型表面活性剂，所述防腐剂设置为卡松。
优选的，所述搅拌的转速设置为200-240转每分钟，搅拌的温度设置为45-55摄氏度，搅拌时间设置为20-30分钟，所述脱水的真空度的数值设置为150，脱水时间设置为1-1.5小时，脱水完成后，将混合物冷却至20-25摄氏度。
本发明的技术效果和优点：该合成革用无溶剂湿法发泡聚氨酯的制备方法，脱水处理，能够降低水液对聚氨酯涂层的影响，配合防腐剂，能够提升整体的使用寿命；发泡物的物理发泡剂和化学发泡剂能够提升发泡效果，提升混合效率，发泡稳定剂能够降低发泡对整体的影响，保护整体，催化剂也能提升加工和混合效率，便于后续的加工的进行；该合成革用无溶剂湿法发泡聚氨酯的制备方法，能够提升加工效果和效率，便于后续的加工的进行。
具体实施方式
下面将结合本发明的内容，对本发明内容中的技术方案进行清楚、完整地描述，显然，所描述的内容仅仅是本发明一部分内容，而不是全部的内容。基于本发明中的内容，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内容，都属于本发明保护的范围。
本发明提供了一种合成革用无溶剂湿法发泡聚氨酯的制备方法，包括以下步骤：
S1、混合：将主料、催化剂和辅助剂按照所需比例依次投放于反应釜内，按照需要进行搅拌，得到混合物，然后将混合物进行脱水；
S2、储存：将得到的混合物进行检测，检测完成后，如若合格，封存后进行储存。
具体的，所述主料包括多元醇和异氰酸酯，所述多元醇设置为聚酯多元醇、聚醚酯多元醇、聚四氢呋喃二醇、聚氧化乙烯-聚氧化丙烯共聚醚多元醇中的一种或多种的混合物。
具体的，所述异氰酸酯设置为甲苯二异氰酸酯、二苯基亚甲基二异氰酸酯、异佛尔酮二异氰酸酯中的一种或多种任意比例的混合物。
具体的，所述催化剂包括发泡催化剂和凝胶催化剂，发泡催化剂设置为有机锡类催化剂、有机铋类催化剂、叔胺类催化剂的一种或者一种以上混合物，凝胶催化剂设置为二异丙醇胺和异丙醇胺中的一种或者两种的任意比例的混合物。
具体的，所述辅助剂包括扩链剂、发泡物、发泡稳定剂和防腐剂，所述扩链剂设置为乙二醇、1,3-丙二醇、丙三醇、1,4-丁二醇中的一种或者多种任意比例的混合物。
具体的，所述发泡物包括物理发泡剂和化学发泡剂，所述物理发泡剂设置为环戊烷和环丁烷的两种等比例的混合物，所述化学发泡剂设置为二甲氨基乙氧基乙醇、三甲基羟乙基乙二胺、3N-三甲基-N-羟乙基双氨乙基醚中的一种。
具体的，所述发泡稳定剂为有机硅表面活性剂或聚醚型表面活性剂，所述防腐剂设置为卡松。
具体的，所述搅拌的转速设置为200-240转每分钟，搅拌的温度设置为45-55摄氏度，搅拌时间设置为20-30分钟，所述脱水的真空度的数值设置为150，脱水时间设置为1-1.5小时，脱水完成后，将混合物冷却至20-25摄氏度。
最后应说明的是：以上所述仅为本发明的优选内容而已，并不用于限制本发明，尽管参照前述内容对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各内容所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换,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 (8)

1.一种合成革用无溶剂湿法发泡聚氨酯的制备方法，其特征在于：包括以下步骤：
S1、混合：将主料、催化剂和辅助剂按照所需比例依次投放于反应釜内，按照需要进行搅拌，得到混合物，然后将混合物进行脱水；
S2、储存：将得到的混合物进行检测，检测完成后，如若合格，封存后进行储存。
2.根据权利要求1所述的一种合成革用无溶剂湿法发泡聚氨酯的制备方法，其特征在于：所述主料包括多元醇和异氰酸酯，所述多元醇设置为聚酯多元醇、聚醚酯多元醇、聚四氢呋喃二醇、聚氧化乙烯-聚氧化丙烯共聚醚多元醇中的一种或多种的混合物。
3.根据权利要求2所述的一种合成革用无溶剂湿法发泡聚氨酯的制备方法，其特征在于：所述异氰酸酯设置为甲苯二异氰酸酯、二苯基亚甲基二异氰酸酯、异佛尔酮二异氰酸酯中的一种或多种任意比例的混合物。
4.根据权利要求1所述的一种合成革用无溶剂湿法发泡聚氨酯的制备方法，其特征在于：所述催化剂包括发泡催化剂和凝胶催化剂，发泡催化剂设置为有机锡类催化剂、有机铋类催化剂、叔胺类催化剂的一种或者一种以上混合物，凝胶催化剂设置为二异丙醇胺和异丙醇胺中的一种或者两种的任意比例的混合物。
5.根据权利要求1所述的一种合成革用无溶剂湿法发泡聚氨酯的制备方法，其特征在于：所述辅助剂包括扩链剂、发泡物、发泡稳定剂和防腐剂，所述扩链剂设置为乙二醇、1,3-丙二醇、丙三醇、1,4-丁二醇中的一种或者多种任意比例的混合物。
6.根据权利要求5所述的一种合成革用无溶剂湿法发泡聚氨酯的制备方法，其特征在于：所述发泡物包括物理发泡剂和化学发泡剂，所述物理发泡剂设置为环戊烷和环丁烷的两种等比例的混合物，所述化学发泡剂设置为二甲氨基乙氧基乙醇、三甲基羟乙基乙二胺、3N-三甲基-N-羟乙基双氨乙基醚中的一种。
7.根据权利要求5所述的一种合成革用无溶剂湿法发泡聚氨酯的制备方法，其特征在于：所述发泡稳定剂为有机硅表面活性剂或聚醚型表面活性剂，所述防腐剂设置为卡松。
8.根据权利要求1所述的一种合成革用无溶剂湿法发泡聚氨酯的制备方法，其特征在于：所述搅拌的转速设置为200-240转每分钟，搅拌的温度设置为45-55摄氏度，搅拌时间设置为20-30分钟，所述脱水的真空度的数值设置为150，脱水时间设置为1-1.5小时，脱水完成后，将混合物冷却至20-25摄氏度。
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103254750A (zh) * 2013-05-06 2013-08-21 陕西科技大学 一种利用温控型聚氨酯制备合成革发泡涂层的方法
CN109898343A (zh) * 2019-02-26 2019-06-18 合肥安利聚氨酯新材料有限公司 一种超柔软合成革用无溶剂聚氨酯中间层树脂及其制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103254750A (zh) * 2013-05-06 2013-08-21 陕西科技大学 一种利用温控型聚氨酯制备合成革发泡涂层的方法
CN109898343A (zh) * 2019-02-26 2019-06-18 合肥安利聚氨酯新材料有限公司 一种超柔软合成革用无溶剂聚氨酯中间层树脂及其制备方法

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