CN108998980A - 一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法 - Google Patents
一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法 Download PDFInfo
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Abstract
本发明公开了一种用硫酸水解‑有机硅柔软整理超细纤维合成革基布的方法,向超细纤维合成革基布中加入纯碱、渗透剂、净洗剂,梯度水洗处理得到前处理基布,将其与水、硫酸放入转鼓中转动后,进行多次水洗,然后挂晾干燥,得到硫酸水解基布;将所得硫酸水解基布放入红外染色小样机中,加入交联剂,水解开环,加入胶原蛋白,接枝反应,充分水洗后晾干,得到接枝改性基布;配制可溶性有机硅柔软剂溶液,采用二浸二轧的方式对所得接枝改性基布进行柔软整理,在烘箱中烘干,得到柔软整理的合成革基布。采用有机硅柔软剂处理基布,使基布的折痕回复性、抗弯曲性、悬垂性、柔软性能都得到提高,撕裂强力提高,经有机硅柔软剂处理的基布综合性能优。
Description
技术领域
本发明属于合成革应用领域,具体涉及一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法。
背景技术
超细纤维合成革以其原料来源广、机械强度高,是近年来研究的一个热点,但是超细纤维合成革基布的活性基团含量少,使得水汽在纤维与外界之间得不到有效的吸收与传递,从而造成超细纤维合成革的卫生性能较差。本发明以从制革废弃物中提取的含有大量活性基团的胶原蛋白为原料,通过化学交联法,采用不同的交联剂将胶原蛋白接枝在上超细纤维合成革基布,以期改善超细纤维合成革基布的卫生性能,不仅可以减少环境污染,而且可实现制革废弃物的资源化合理利用。
发明内容
本发明的目的是针对现有的问题,提供了一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法,依照该方法制作的合成革基布具有优异的透水汽性、吸湿性、抗张强度和撕裂强度。
本发明是通过以下技术方案实现的:
一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法,其特征在于,包括如下步骤:
(1)硫酸水解基布:
向超细纤维合成革基布中加入4-6%纯碱、2-3%渗透剂、4-6%净洗剂,在65-75℃下处理10-15min后,在55-65℃下处理15-25min,用30-40℃温水洗2-3次,再用常温水洗,得到前处理基布;将其与水、13-17%硫酸放入转鼓中,在45-55℃下转动3-5h后,进行多次水洗,然后挂晾干燥;
(2)采用环氧树脂交联剂接枝胶原蛋白改性基布:
将(1)中所得基布放入红外染色小样机中,液比为30:1,加入10-12%交联剂,在反应温度为37-39℃条件下,水解开环140-160min,加入12-14%胶原蛋白,接枝反应100-110min,充分水洗后晾干;
(3)有机硅柔软剂柔软整理工艺:
配制质量分数为4-6%的可溶性有机硅柔软剂,采用二浸二轧的方式对(2)中所得接枝改性基布进行柔软整理,控制轧液率为65-75%,在125-135℃烘箱中烘干。
进一步的,步骤(1)中超细纤维合成革基布是指体积比为70:30的PET/PA6,水与基布质量比为 50:1。
进一步的,步骤(2)中交联剂为环氧树脂。
进一步的,步骤(3)中可溶性有机硅柔软剂是指聚醚型有机硅。
本发明相比现有技术具有以下优点:
(1)在酸水解前对基布进行前处理以去除基布中油剂、抗静电剂和浆料等对改性会产生影响的物质,向基布中加纯碱、渗透剂、净洗剂后梯度水洗;采用硫酸对前处理基布进行适当水解,硫酸水解处理的超细纤维合成革基布的撕裂强度、抗张强度、透水汽性、吸湿性都得到了提高;
(2)采用环氧树脂交联剂接枝胶原蛋白改性超细纤维合成革基布,改性后的基布中出现了羧基和少量的环氧基,接触角显著减小,表面变得平整;改性基布的透水汽性、吸湿性、抗张强度、撕裂强度都得到了提高,环氧树脂交联胶原蛋白对基布的改性取得了明显的效果,环氧树脂交联剂不会使基布中产生甲醛。
(3)采用有机硅柔软剂处理基布,使基布的折痕回复性、抗弯曲性、悬垂性、柔软性能都得到提高,撕裂强力提高,经有机硅柔软剂处理的基布综合性能优。
具体实施方式
实施例1
一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法,其特征在于,包括如下步骤:
(1)硫酸水解基布:
向超细纤维合成革基布中加入4%纯碱、2%渗透剂、4%净洗剂,在65℃下处理10min后,在55℃下处理15min,用30℃温水洗2次,再用常温水洗,得到前处理基布;将其与水、13%硫酸放入转鼓中,在45℃下转动3h后,进行多次水洗,然后挂晾干燥;
(2)采用环氧树脂交联剂接枝胶原蛋白改性基布:
将(1)中所得基布放入红外染色小样机中,液比为30:1,加入10%交联剂,在反应温度为37℃条件下,水解开环140min,加入12%胶原蛋白,接枝反应100min,充分水洗后晾干;
(3)有机硅柔软剂柔软整理工艺:
配制质量分数为4%的可溶性有机硅柔软剂,采用二浸二轧的方式对(2)中所得接枝改性基布进行柔软整理,控制轧液率为65%,在125℃烘箱中烘干。
进一步的,步骤(1)中超细纤维合成革基布是指体积比为70:30的PET/PA6,水与基布质量比为 50:1。
进一步的,步骤(2)中交联剂为环氧树脂。
进一步的,步骤(3)中可溶性有机硅柔软剂是指聚醚型有机硅。
实施例2
一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法,其特征在于,包括如下步骤:
(1)硫酸水解基布:
向超细纤维合成革基布中加入6%纯碱、3%渗透剂、6%净洗剂,在75℃下处理15min后,在65℃下处理25min,用40℃温水洗3次,再用常温水洗,得到前处理基布;将其与水、17%硫酸放入转鼓中,在55℃下转动5h后,进行多次水洗,然后挂晾干燥;
(2)采用环氧树脂交联剂接枝胶原蛋白改性基布:
将(1)中所得基布放入红外染色小样机中,液比为30:1,加入12%交联剂,在反应温度为39℃条件下,水解开环160min,加入14%胶原蛋白,接枝反应110min,充分水洗后晾干;
(3)有机硅柔软剂柔软整理工艺:
配制质量分数为4-6%的可溶性有机硅柔软剂,采用二浸二轧的方式对(2)中所得接枝改性基布进行柔软整理,控制轧液率为75%,在135℃烘箱中烘干。
进一步的,步骤(1)中超细纤维合成革基布是指体积比为70:30的PET/PA6,水与基布质量比为 50:1。
进一步的,步骤(2)中交联剂为环氧树脂。
进一步的,步骤(3)中可溶性有机硅柔软剂是指聚醚型有机硅。
按照本发明方法制作的合成革基布具有优异的透水汽性、吸湿性、抗张强度和撕裂强度;以未经任何改性处理的超细纤维合成革基布为空白对照组:
按本实施例制作的改性合成革基布的透水汽性提高了43%、吸湿性提高了45%,抗张强度提高了15%,撕裂强度提高了16%。
Claims (4)
1.一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法,其特征在于,包括如下步骤:
(1)硫酸水解基布:
向超细纤维合成革基布中加入4-6%纯碱、2-3%渗透剂、4-6%净洗剂,在65-75℃下处理10-15min后,在55-65℃下处理15-25min,用30-40℃温水洗2-3次,再用常温水洗,得到前处理基布;将其与水、13-17%硫酸放入转鼓中,在45-55℃下转动3-5h后,进行多次水洗,然后挂晾干燥;
(2)采用环氧树脂交联剂接枝胶原蛋白改性基布:
将(1)中所得基布放入红外染色小样机中,液比为30:1,加入10-12%交联剂,在反应温度为37-39℃条件下,水解开环140-160min,加入12-14%胶原蛋白,接枝反应100-110min,充分水洗后晾干;
(3)有机硅柔软剂柔软整理工艺:
配制质量分数为4-6%的可溶性有机硅柔软剂,采用二浸二轧的方式对(2)中所得接枝改性基布进行柔软整理,控制轧液率为65-75%,在125-135℃烘箱中烘干。
2.根据权利要求1所述的一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法,其特征在于,步骤(1)中超细纤维合成革基布是指体积比为70:30的PET/PA6,水与基布质量比为 50:1。
3.根据权利要求1所述的一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法,其特征在于,步骤(2)中交联剂为环氧树脂。
4.根据权利要求1所述的一种用硫酸水解-有机硅柔软整理超细纤维合成革基布的方法,其特征在于,步骤(3)中可溶性有机硅柔软剂是指聚醚型有机硅。
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