CN112252049A - 一种环保合成革的制备方法 - Google Patents
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Abstract
本发明公开了一种环保合成革的制备方法,包括如下生产步骤:步骤一:制作基布,将非织造布的表面涂覆水性疏水助剂,然后在60‑120°C的条件下进行烘干处理使水性疏水助剂固化,从而制得表面经疏水预处理的基布;步骤二:将制得的基布均匀的浸入到水性聚氨酯含浸树脂中2‑10min,再通过轧辊,控制聚氨酯含浸树脂的浸渍量为含浸后非织造布重量的40‑95%,然后在60‑140°C的条件下进行烘干处理使聚氨酯含浸树脂固化。本发明制备的聚氨酯合成革增强自然光对革面渗透以及革面的透气性,不仅能光催化作用分解消除聚氨酯合成革自身的异味,而且能同时清楚鞋内或者服装内的异味,即体表产生的异味,并且不使用任何有机化学品,无毒无害,作用持久。
Description
技术领域
本发明涉及皮革生产技术领域,具体为一种环保合成革的制备方法。
背景技术
合成革是模拟天然革的组成和结构并可作为其代用材料的塑料制品,通常以经浸渍的无纺布为网状层,微孔聚氨脂层作为粒面层制得,其正、反面都与皮革十分相似,并具有一定的透气性,比普通人造革更接近天然革,广泛用于制作鞋、靴、箱包和球类等,在现有的合成革制造中,聚氨脂树脂,经过稀释加木质粉或其它填充材料,经过渗透流平、消泡、凝固的工艺过程,根据聚氨脂树脂的性能,可以采用分湿法和干法二种方法生产皮革,得到了很好的效果,也取得了丰厚的回报和效益,但是现有合成革制造生产中需要使用大量的化学物质,因此对环保和人体健康产生了很大的危害性,随着社会的进步和生活水平的提高,物质要求也随着提高,健康和环保对合成革产品提出了新的要求。
二氧化钛对很多有机污染物吸附较强、催化氧化活性高,它在环境污染治理方面扮演极其重要的角色,被广泛用于光催化处理多种有机物,近年来,二氧化钛成为最受人们青睐的一种绿色环保型光催化剂,采用光催化二氧化钛微胶囊作为空气净化颗粒,能够解决聚氨酯合成革不透气产生异味的问题,能够大大进化足部的空气环境。
发明内容
本发明的目的在于提供一种环保合成革的制备方法,具备天然环保的优点,解决了聚氨酯合成革不透气产生异味的问题。
为实现上述目的,本发明提供如下技术方案:一种环保合成革的制备方法,包括如下生产步骤:
步骤一:制作基布,将非织造布的表面涂覆水性疏水助剂,然后在60-120°C的条件下进行烘干处理使水性疏水助剂固化,从而制得表面经疏水预处理的基布;
步骤二:将制得的基布均匀的浸入到水性聚氨酯含浸树脂中2-10min,再通过轧辊,控制聚氨酯含浸树脂的浸渍量为含浸后非织造布重量的40-95%,然后在60-140°C的条件下进行烘干处理使聚氨酯含浸树脂固化,从而制得复合基布;
步骤三:将质量份数为5-10份的纳米二氧化钛粉末与质量份数为1-20份的YPO4:Ce,Th混合,然后与质量份数为80-100份的单体甲基丙烯酸甲酯在容器中混合均匀,加入质量份数为2-10份的吐温80,在超声作用下,加入质量份数为500-800份的水;然后加入质量份数为10-30份的致孔剂聚乙二醇400、质量份数为80-100份的引发剂偶氮二异丁腈和质量份数为10-20份的交联剂甲基丙烯酸烯丙酯,在通氮气保护下,45-80°C,以400-600r/min的转速均质搅拌反应0.5-4h,最后用水洗涤、抽滤、真空干燥,得到光催化二氧化钛微胶囊;
步骤四:将光催化二氧化钛微胶囊加入到热塑性聚氨酯浆料中,同时放入致孔剂,制得热塑性聚氨酯湿法浆料;
步骤五:热塑性聚氨酯湿法浆料涂布于复合基布后,凝固、水洗,烘干形成合成革半成品;
步骤六:制得的合成革半成品,经36h自然光照射,获得环保的合成革。
优选的,所述步骤一中,非织造布为水溶性聚酯、聚酯海岛纤维非织造布或水溶性聚酯、聚酰胺海岛纤维非织造布。
优选的,所述步骤一中,水性疏水助剂为有机硅类疏水助剂、含氟疏水助剂中的一种或多种的混合物,烘干固化后的疏水助剂占非织造布质量的2-6%。
优选的,所述步骤一中,水性疏水助剂在非织造布表面的涂覆方式为刮涂,烘干固化后的疏水助剂在基布中的分布为从基布表面到基布内部呈由多到少的梯度分布,且疏水助剂在碱的作用下能够从基布中完全去除。
优选的,所述步骤三中,致孔剂为聚乙二醇400、聚乙二醇1000或聚乙二醇4000中的一种。
与现有技术相比,本发明的有益效果如下:
1、本发明制备的聚氨酯合成革增强自然光对革面渗透以及革面的透气性,不仅能光催化作用分解消除聚氨酯合成革自身的异味,而且能同时清楚鞋内或者服装内的异味,即体表产生的异味,并且不使用任何有机化学品,无毒无害,作用持久。
2、本发明通过以海岛纤维非织造布为基材,采用疏水助剂预处理、水性聚氨酯树脂含浸和碱减量、磨毛、染色、化柔处理工艺,制造了水性超细纤维合成革,这种水性超细纤维合成革中聚氨酯含浸树脂的分布为从超细纤维合成革的表面到内部呈由少到多的梯度分布,表面活络、内部紧实,与天然皮革结构相似,手感丰满、真皮感强,本发明制备方法绿色环保,超细纤维合成革内部不存在有机溶剂残留。
具体实施方式
下面将结合本发明的实施例,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。
一种环保合成革的制备方法,包括如下生产步骤:
步骤一:制作基布,将非织造布的表面涂覆水性疏水助剂,然后在60-120°C的条件下进行烘干处理使水性疏水助剂固化,从而制得表面经疏水预处理的基布;
步骤二:将制得的基布均匀的浸入到水性聚氨酯含浸树脂中2-10min,再通过轧辊,控制聚氨酯含浸树脂的浸渍量为含浸后非织造布重量的40-95%,然后在60-140°C的条件下进行烘干处理使聚氨酯含浸树脂固化,从而制得复合基布;
步骤三:将质量份数为5-10份的纳米二氧化钛粉末与质量份数为1-20份的YPO4:Ce,Th混合,然后与质量份数为80-100份的单体甲基丙烯酸甲酯在容器中混合均匀,加入质量份数为2-10份的吐温80,在超声作用下,加入质量份数为500-800份的水;然后加入质量份数为10-30份的致孔剂聚乙二醇400、质量份数为80-100份的引发剂偶氮二异丁腈和质量份数为10-20份的交联剂甲基丙烯酸烯丙酯,在通氮气保护下,45-80°C,以400-600r/min的转速均质搅拌反应0.5-4h,最后用水洗涤、抽滤、真空干燥,得到光催化二氧化钛微胶囊;
步骤四:将光催化二氧化钛微胶囊加入到热塑性聚氨酯浆料中,同时放入致孔剂,制得热塑性聚氨酯湿法浆料;
步骤五:热塑性聚氨酯湿法浆料涂布于复合基布后,凝固、水洗,烘干形成合成革半成品;
步骤六:制得的合成革半成品,经36h自然光照射,获得环保的合成革。
实施例一:
制作基布,将非织造布的表面涂覆水性疏水助剂,然后在60-120°C的条件下进行烘干处理使水性疏水助剂固化,从而制得表面经疏水预处理的基布;将制得的基布均匀的浸入到水性聚氨酯含浸树脂中2-10min,再通过轧辊,控制聚氨酯含浸树脂的浸渍量为含浸后非织造布重量的40-95%,然后在60-140°C的条件下进行烘干处理使聚氨酯含浸树脂固化,从而制得复合基布;将质量份数为5-10份的纳米二氧化钛粉末与质量份数为1-20份的YPO4:Ce,Th混合,然后与质量份数为80-100份的单体甲基丙烯酸甲酯在容器中混合均匀,加入质量份数为2-10份的吐温80,在超声作用下,加入质量份数为500-800份的水;然后加入质量份数为10-30份的致孔剂聚乙二醇400、质量份数为80-100份的引发剂偶氮二异丁腈和质量份数为10-20份的交联剂甲基丙烯酸烯丙酯,在通氮气保护下,45-80°C,以400-600r/min的转速均质搅拌反应0.5-4h,最后用水洗涤、抽滤、真空干燥,得到光催化二氧化钛微胶囊;将光催化二氧化钛微胶囊加入到热塑性聚氨酯浆料中,同时放入致孔剂,制得热塑性聚氨酯湿法浆料;热塑性聚氨酯湿法浆料涂布于复合基布后,凝固、水洗,烘干形成合成革半成品;制得的合成革半成品,经36h自然光照射,获得环保的合成革。
实施例二:
在实施例一中,再加入下述步骤:
步骤一中,非织造布为水溶性聚酯、聚酯海岛纤维非织造布或水溶性聚酯、聚酰胺海岛纤维非织造布。
制作基布,将非织造布的表面涂覆水性疏水助剂,然后在60-120°C的条件下进行烘干处理使水性疏水助剂固化,从而制得表面经疏水预处理的基布;将制得的基布均匀的浸入到水性聚氨酯含浸树脂中2-10min,再通过轧辊,控制聚氨酯含浸树脂的浸渍量为含浸后非织造布重量的40-95%,然后在60-140°C的条件下进行烘干处理使聚氨酯含浸树脂固化,从而制得复合基布;将质量份数为5-10份的纳米二氧化钛粉末与质量份数为1-20份的YPO4:Ce,Th混合,然后与质量份数为80-100份的单体甲基丙烯酸甲酯在容器中混合均匀,加入质量份数为2-10份的吐温80,在超声作用下,加入质量份数为500-800份的水;然后加入质量份数为10-30份的致孔剂聚乙二醇400、质量份数为80-100份的引发剂偶氮二异丁腈和质量份数为10-20份的交联剂甲基丙烯酸烯丙酯,在通氮气保护下,45-80°C,以400-600r/min的转速均质搅拌反应0.5-4h,最后用水洗涤、抽滤、真空干燥,得到光催化二氧化钛微胶囊;将光催化二氧化钛微胶囊加入到热塑性聚氨酯浆料中,同时放入致孔剂,制得热塑性聚氨酯湿法浆料;热塑性聚氨酯湿法浆料涂布于复合基布后,凝固、水洗,烘干形成合成革半成品;制得的合成革半成品,经36h自然光照射,获得环保的合成革。
实施例三:
在实施例二中,再加入下述步骤:
步骤一中,水性疏水助剂为有机硅类疏水助剂、含氟疏水助剂中的一种或多种的混合物,烘干固化后的疏水助剂占非织造布质量的2-6%。
制作基布,将非织造布的表面涂覆水性疏水助剂,然后在60-120°C的条件下进行烘干处理使水性疏水助剂固化,从而制得表面经疏水预处理的基布;将制得的基布均匀的浸入到水性聚氨酯含浸树脂中2-10min,再通过轧辊,控制聚氨酯含浸树脂的浸渍量为含浸后非织造布重量的40-95%,然后在60-140°C的条件下进行烘干处理使聚氨酯含浸树脂固化,从而制得复合基布;将质量份数为5-10份的纳米二氧化钛粉末与质量份数为1-20份的YPO4:Ce,Th混合,然后与质量份数为80-100份的单体甲基丙烯酸甲酯在容器中混合均匀,加入质量份数为2-10份的吐温80,在超声作用下,加入质量份数为500-800份的水;然后加入质量份数为10-30份的致孔剂聚乙二醇400、质量份数为80-100份的引发剂偶氮二异丁腈和质量份数为10-20份的交联剂甲基丙烯酸烯丙酯,在通氮气保护下,45-80°C,以400-600r/min的转速均质搅拌反应0.5-4h,最后用水洗涤、抽滤、真空干燥,得到光催化二氧化钛微胶囊;将光催化二氧化钛微胶囊加入到热塑性聚氨酯浆料中,同时放入致孔剂,制得热塑性聚氨酯湿法浆料;热塑性聚氨酯湿法浆料涂布于复合基布后,凝固、水洗,烘干形成合成革半成品;制得的合成革半成品,经36h自然光照射,获得环保的合成革。
实施例四:
在实施例三中,再加入下述步骤:
步骤一中,水性疏水助剂在非织造布表面的涂覆方式为刮涂,烘干固化后的疏水助剂在基布中的分布为从基布表面到基布内部呈由多到少的梯度分布,且疏水助剂在碱的作用下能够从基布中完全去除。
制作基布,将非织造布的表面涂覆水性疏水助剂,然后在60-120°C的条件下进行烘干处理使水性疏水助剂固化,从而制得表面经疏水预处理的基布;将制得的基布均匀的浸入到水性聚氨酯含浸树脂中2-10min,再通过轧辊,控制聚氨酯含浸树脂的浸渍量为含浸后非织造布重量的40-95%,然后在60-140°C的条件下进行烘干处理使聚氨酯含浸树脂固化,从而制得复合基布;将质量份数为5-10份的纳米二氧化钛粉末与质量份数为1-20份的YPO4:Ce,Th混合,然后与质量份数为80-100份的单体甲基丙烯酸甲酯在容器中混合均匀,加入质量份数为2-10份的吐温80,在超声作用下,加入质量份数为500-800份的水;然后加入质量份数为10-30份的致孔剂聚乙二醇400、质量份数为80-100份的引发剂偶氮二异丁腈和质量份数为10-20份的交联剂甲基丙烯酸烯丙酯,在通氮气保护下,45-80°C,以400-600r/min的转速均质搅拌反应0.5-4h,最后用水洗涤、抽滤、真空干燥,得到光催化二氧化钛微胶囊;将光催化二氧化钛微胶囊加入到热塑性聚氨酯浆料中,同时放入致孔剂,制得热塑性聚氨酯湿法浆料;热塑性聚氨酯湿法浆料涂布于复合基布后,凝固、水洗,烘干形成合成革半成品;制得的合成革半成品,经36h自然光照射,获得环保的合成革。
实施例五:
在实施例四中,再加入下述步骤:
步骤三中,致孔剂为聚乙二醇400、聚乙二醇1000或聚乙二醇4000中的一种。
制作基布,将非织造布的表面涂覆水性疏水助剂,然后在60-120°C的条件下进行烘干处理使水性疏水助剂固化,从而制得表面经疏水预处理的基布;将制得的基布均匀的浸入到水性聚氨酯含浸树脂中2-10min,再通过轧辊,控制聚氨酯含浸树脂的浸渍量为含浸后非织造布重量的40-95%,然后在60-140°C的条件下进行烘干处理使聚氨酯含浸树脂固化,从而制得复合基布;将质量份数为5-10份的纳米二氧化钛粉末与质量份数为1-20份的YPO4:Ce,Th混合,然后与质量份数为80-100份的单体甲基丙烯酸甲酯在容器中混合均匀,加入质量份数为2-10份的吐温80,在超声作用下,加入质量份数为500-800份的水;然后加入质量份数为10-30份的致孔剂聚乙二醇400、质量份数为80-100份的引发剂偶氮二异丁腈和质量份数为10-20份的交联剂甲基丙烯酸烯丙酯,在通氮气保护下,45-80°C,以400-600r/min的转速均质搅拌反应0.5-4h,最后用水洗涤、抽滤、真空干燥,得到光催化二氧化钛微胶囊;将光催化二氧化钛微胶囊加入到热塑性聚氨酯浆料中,同时放入致孔剂,制得热塑性聚氨酯湿法浆料;热塑性聚氨酯湿法浆料涂布于复合基布后,凝固、水洗,烘干形成合成革半成品;制得的合成革半成品,经36h自然光照射,获得环保的合成革。
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 (5)
1.一种环保合成革的制备方法,其特征在于:包括如下生产步骤:
步骤一:制作基布,将非织造布的表面涂覆水性疏水助剂,然后在60-120°C的条件下进行烘干处理使水性疏水助剂固化,从而制得表面经疏水预处理的基布;
步骤二:将制得的基布均匀的浸入到水性聚氨酯含浸树脂中2-10min,再通过轧辊,控制聚氨酯含浸树脂的浸渍量为含浸后非织造布重量的40-95%,然后在60-140°C的条件下进行烘干处理使聚氨酯含浸树脂固化,从而制得复合基布;
步骤三:将质量份数为5-10份的纳米二氧化钛粉末与质量份数为1-20份的YPO4:Ce,Th混合,然后与质量份数为80-100份的单体甲基丙烯酸甲酯在容器中混合均匀,加入质量份数为2-10份的吐温80,在超声作用下,加入质量份数为500-800份的水;然后加入质量份数为10-30份的致孔剂聚乙二醇400、质量份数为80-100份的引发剂偶氮二异丁腈和质量份数为10-20份的交联剂甲基丙烯酸烯丙酯,在通氮气保护下,45-80°C,以400-600r/min的转速均质搅拌反应0.5-4h,最后用水洗涤、抽滤、真空干燥,得到光催化二氧化钛微胶囊;
步骤四:将光催化二氧化钛微胶囊加入到热塑性聚氨酯浆料中,同时放入致孔剂,制得热塑性聚氨酯湿法浆料;
步骤五:热塑性聚氨酯湿法浆料涂布于复合基布后,凝固、水洗,烘干形成合成革半成品;
步骤六:制得的合成革半成品,经36h自然光照射,获得环保的合成革。
2.根据权利要求1所述的一种环保合成革的制备方法,其特征在于:所述步骤一中,非织造布为水溶性聚酯、聚酯海岛纤维非织造布或水溶性聚酯、聚酰胺海岛纤维非织造布。
3.根据权利要求1所述的一种环保合成革的制备方法,其特征在于:所述步骤一中,水性疏水助剂为有机硅类疏水助剂、含氟疏水助剂中的一种或多种的混合物,烘干固化后的疏水助剂占非织造布质量的2-6%。
4.根据权利要求1所述的一种环保合成革的制备方法,其特征在于:所述步骤一中,水性疏水助剂在非织造布表面的涂覆方式为刮涂,烘干固化后的疏水助剂在基布中的分布为从基布表面到基布内部呈由多到少的梯度分布,且疏水助剂在碱的作用下能够从基布中完全去除。
5.根据权利要求1所述的一种环保合成革的制备方法,其特征在于:所述步骤三中,致孔剂为聚乙二醇400、聚乙二醇1000或聚乙二醇4000中的一种。
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