CN116065407A - 一种耐磨人造革及其制备方法 - Google Patents

一种耐磨人造革及其制备方法 Download PDF

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CN116065407A
CN116065407A CN202310102387.0A CN202310102387A CN116065407A CN 116065407 A CN116065407 A CN 116065407A CN 202310102387 A CN202310102387 A CN 202310102387A CN 116065407 A CN116065407 A CN 116065407A
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宗政宇
蒋泽
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Abstract

本发明公开了一种耐磨人造革及其制备方法，属于人造革制造领域，在树脂层的表面涂覆表面保护层，表面保护层中采用含有亲水自交联官能团的自交联型水性聚氨酯树脂，在干燥成膜时自我交联，形成致密保护网及三维立体结构，极大提高了耐磨性能，而且加入复合纳米树脂材料能够增加人造革的柔软度和仿皮革的手感；本发明在不影响人造革质感的基础上提升了人造革的耐磨度，拓宽了人造革的应用范围，延长了使用寿命。

Description

一种耐磨人造革及其制备方法
技术领域
本发明属于人造革制造领域，尤其涉及一种耐磨人造革及其制备方法。
背景技术
随着人造革的生产和需求越来越大，人造革被应用到各种不同领域，有些人造革使用在经常产生摩擦的场景，例如沙发皮革和汽车内饰皮革等，这些领域第人造革的耐磨性会有较高的要求，皮革的耐磨性实际上是指皮革抵抗摩擦、划伤的一种能力，其与皮革的许多性能有关，包括表面硬度、内聚力、拉伸强度、弹性模量和韧性等。目前市面上大部分水性聚氨酯皮革为聚醚型和聚酯型聚氨酯，这一类皮革手感好，弹性好、耐低温并且成本低，但硬度相对较低，力学性能差，不耐磨不耐刮。在长期的使用过程中涂料表面易产生磨损和划痕，严重时甚至会磨破涂层。
发明内容
本发明提供了一种耐磨人造革及其制备方法，在不影响手感的基础上借助在表面制备耐磨涂料层达到耐磨耐刮的效果。
为实现以上目的，本发明采用以下技术方案：
一种耐磨人造革，包括树脂层、表面保护层，所述树脂层由聚氨酯树脂和发泡剂组成，所述聚氨酯树脂和发泡剂的质量比为90:0.5-120:1；
所述表面保护层包括以下质量份数组分：45～70份聚酯树脂，0.1～2份消泡剂，0.1～2份流平剂；
所述聚酯树脂为自交联型水性聚氨酯树脂，所述自交联型水性聚氨酯树脂含有亲水自交联官能团。
优选的，所述树脂层中含有复合纳米聚酯树脂，所述复合纳米聚酯树脂和聚氨酯树脂质量比为1:1-1:2。
一种耐磨人造革的制备方法，包括以下步骤：
(1)将质量比为90:0.5-120:1的聚氨酯树脂和发泡剂加入溶剂中，混合均匀得到树脂层浆料，将配置好的浆料均匀涂布一定厚度于离型纸上，并进行烘干；
(2)将质量份数组分45～70份聚酯树脂，0.1～2份消泡剂，0.1～2份流平剂混合均匀得到表面层浆料，配置好的浆料涂布于步骤(1)中烘干后的树脂层上，然后进行烘干，移除离型纸后得到成品人造革。
优选的，步骤(1)中树脂层的涂覆厚度为0.5-1mm；步骤(1)中为了提升人造革的柔软度和仿皮革手感，加入复合纳米聚酯树脂，将复合纳米材料与羧基聚酯树脂预分散，然后熔融挤出破碎后加入步骤(1)的混合物中，所述复合纳米材料为酚羟基氨基纳米材料；所述复合纳米聚酯树脂和水性聚氨酯树脂质量比为1:1-1:2；上述烘干温度为130-140℃。
有益效果：本发明提供了一种耐磨人造革及其制备方法，在树脂层的表面涂覆表面保护层，表面保护层中采用含有亲水自交联官能团的自交联型水性聚氨酯树脂，在干燥成膜时自我交联，形成致密保护网及三维立体结构，极大提高了耐磨性能，而且加入复合纳米树脂材料能够增加人造革的柔软度和仿皮革的手感；本发明在不影响人造革质感的基础上提升了人造革的耐磨度，拓宽了人造革的应用范围，延长了使用寿命。
具体实施方式
下面结合具体实施例对本发明进行详细说明：
实施例1
一种耐磨人造革的制备方法，包括以下步骤：
(1)将质量比为90:0.5的聚氨酯树脂和发泡剂加入丙酮中，混合均匀得到树脂层浆料，将配置好的浆料均匀涂布0.5mm于离型纸上，并进行烘干；
(2)将质量份数组分70份含有亲水自交联官能团的自交联型水性聚氨酯树脂，2份消泡剂，2份流平剂混合均匀得到表面层浆料，配置好的浆料涂布于步骤(1)中烘干后的树脂层上，然后140℃进行烘干，移除离型纸后得到成品人造革。
实施例2
一种耐磨人造革的制备方法，包括以下步骤：
(1)将复合纳米材料与羧基聚酯树脂预分散，然后熔融挤出破碎后得到复合纳米聚酯树脂，将质量比为120:80:1的聚氨酯树脂、复合纳米聚酯树脂和发泡剂加入溶剂中，混合均匀得到树脂层浆料，将配置好的浆料均匀涂布一定厚度于离型纸上，并进行150℃烘干；
(2)将质量份数组分60份聚酯树脂，1.52份消泡剂，1份流平剂混合均匀得到表面层浆料，配置好的浆料涂布于步骤(1)中烘干后的树脂层上，然后150℃进行烘干，移除离型纸后得到成品人造革。
实施例3
一种耐磨人造革的制备方法，包括以下步骤：
(1)将复合纳米材料与羧基聚酯树脂预分散，然后熔融挤出破碎后得到复合纳米聚酯树脂，将质量比为120:120:1的聚氨酯树脂、复合纳米聚酯树脂和发泡剂加入溶剂中，混合均匀得到树脂层浆料，将配置好的浆料均匀涂布一定厚度于离型纸上，并进行150℃烘干；
(2)将质量份数组分60份聚酯树脂，1.52份消泡剂，1份流平剂混合均匀得到表面层浆料，配置好的浆料涂布于步骤(1)中烘干后的树脂层上，然后150℃进行烘干，移除离型纸后得到成品人造革。
对比例1
采用市面常用的聚氨酯人造革。
将实施例1-3和对比例1的人造革进行性能测试，采用0096Z-SEC-A000测试方法，检测结果如表1所示：
表1实施例产品的性能测试结果
Figure BDA0004073440020000031
上述实施例的柔软度和手感对比结果：实施例3最优，实施例2次之，都较柔软，有皮革的触感，对比例1的人造革手感最差，偏硬。
以上仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照实施例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实施例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，但是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)

1.一种耐磨人造革，其特征在于，包括树脂层、表面保护层，所述树脂层由聚氨酯树脂和发泡剂组成，所述聚氨酯树脂和发泡剂的质量比为90:0.5-120:1；所述表面保护层包括以下质量份数组分：45-70份聚酯树脂，0.1-2份消泡剂，0.1-2份流平剂。
2.根据权利要求1所述的耐磨人造革，其特征在于，所述聚酯树脂为自交联型水性聚氨酯树脂。
3.根据权利要求2所述的耐磨人造革，其特征在于，所述自交联型水性聚氨酯树脂含有亲水自交联官能团。
4.根据权利要求1所述的耐磨人造革，其特征在于，所述树脂层中含有复合纳米聚酯树脂，所述复合纳米聚酯树脂和聚氨酯树脂质量比为1:1-1:2。
5.一种耐磨人造革的制备方法，其特征在于，包括以下步骤：
(1)将质量比为90:0.5-120:1的聚氨酯树脂和发泡剂加入溶剂中，混合均匀得到树脂层浆料，将配置好的浆料均匀涂布一定厚度于离型纸上，并进行烘干；
(2)将质量份数组分45～70份聚酯树脂，0.1～2份消泡剂，0.1～2份流平剂混合均匀得到表面层浆料，配置好的浆料涂布于步骤(1)中烘干后的树脂层上，然后进行烘干，移除离型纸后得到成品人造革。
6.根据权利要求5所述的耐磨人造革的制备方法，其特征在于，步骤(1)中树脂层的涂覆厚度为0.5-1mm。
7.根据权利要求5所述的耐磨人造革的制备方法，其特征在于，将复合纳米材料与羧基聚酯树脂预分散，然后熔融挤出破碎得到复合纳米聚酯树脂后加入步骤(1)的混合物中，所述复合纳米聚酯树脂和聚氨酯树脂质量比为1:1-1:2。
8.根据权利要求7所述的耐磨人造革的制备方法，其特征在于，所述复合纳米材料为酚羟基氨基纳米材料。
9.根据权利要求5所述的耐磨人造革的制备方法，其特征在于，烘干温度为130-160℃。
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Citations (16)

* Cited by examiner, † Cited by third party
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