CN111423626A - 一种抗菌环保薄膜及其制备工艺 - Google Patents
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Abstract
本发明公开了一种抗菌环保薄膜及其制备工艺,属于薄膜技术领域,包括环保层、抗菌层和基体层;环保层按重量份包括纳米膨润土10~15份、硬脂酸铁20~35份、抗氧剂10~15份、交联剂15~30份和淀粉40~50份;抗菌层按重量份包括花青素15~30份、双氧水10~15份、水溶性甲壳素20~25份。本发明通过在抗菌层中加入花青素、双氧水和水溶性甲壳素均为环保型杀菌剂能够有效抗菌,三种杀菌剂同时抗菌,能够有效增加抗菌时间,增强抗菌效果;在环保层中加入纳米膨润土和淀粉均为无污染型原材料,能够有效后期使用过程中的环境减少污染。
Description
技术领域
本发明涉及一种薄膜及其制备工艺,特别是涉及一种抗菌环保薄膜及其制备工艺,属于薄膜技术领域。
背景技术
薄膜是用聚氯乙烯、聚乙烯、聚丙烯、聚苯乙烯以及其他树脂制成的薄膜,用于包装,以及用作覆膜层。
现有的抗菌环保薄膜抗菌时间短,且环保性能较差。
发明内容
本发明的主要目的是为了解决现有技术的不足,而提供一种抗菌环保薄膜及其制备工艺。
本发明的目的可以通过采用如下技术方案达到:
一种抗菌环保薄膜,包括环保层、抗菌层和基体层;
所述环保层按重量份包括纳米膨润土10~15份、硬脂酸铁20~35份、抗氧剂10~15份、交联剂15~30份和淀粉40~50份;
所述抗菌层按重量份包括花青素15~30份、双氧水10~15份、水溶性甲壳素20~25份;
所述基体层按重量份包括聚乙烯50~80份、丙烯腈15~30份、丁二烯20~30份、苯乙烯20~50份、偶联剂15~30份和稳定剂18~30份。
优选的,所述抗氧剂为抗氧剂1010、抗氧剂1076、抗氧剂CA或抗氧剂164中的一种或多种。
优选的,所述淀粉为交联淀粉,所述交联剂为磷酸酯或醋酸酯中的一种或多种。
优选的,所述花青素的浓度为0.25~0.38mol/ml,所述水溶性甲壳素为羟乙基,所述羟乙基的浓度为0.35~0.52mol/ml。
优选的,所述偶联剂为甲氧基或乙氧基中的一种或者多种。
优选的,所述稳定剂为稀土稳定剂XT-1、XT-2或XT-3中的一种或多种。
优选的,所述纳米膨润土的粒度为10~15nm。
一种抗菌环保薄膜的制备工艺,包括如下步骤:
步骤1:环保层的制备,在加热15~35℃条件下,将纳米膨润土与硬脂酸铁混合后加入适量的水调成糊状后,并依次加入淀粉、抗氧剂和交联剂,混合均匀后得到环保层原料;
步骤2:抗菌层的制备,将花青素、双氧水和水溶性甲壳素三者按比例加入到试剂瓶中混合均匀,得到抗菌层原料;
步骤3:基体层的制备,将聚乙烯、丙烯腈、丁二烯和苯乙烯加热到80~130℃条件下加热熔融,并放入搅拌机中以315r/min搅拌10~15min,搅拌均匀后依次加入偶联剂和稳定剂,继续搅拌3~5min,得到基体层原料;
步骤4:将环保层原料、抗菌层原料和基体层原料三者混合均匀后放入搅拌机中,混合均匀后输入吹膜机中,吹膜温度为135~140℃,吹膜制备得到抗菌环保薄膜。
优选的,在步骤2中,花青素、双氧水和水溶性三者的重量比例为1:3:2。
优选的,在步骤4中,环保层原料、抗菌层原料和基体层原料放入比例为3:2:5。
本发明的有益技术效果:按照本发明的抗菌环保薄膜及其制备工艺,将薄膜采用环保层、抗菌层和基体层三层单独制备,能够使原料混合的更加均匀,同时在抗菌层中加入花青素、双氧水和水溶性甲壳素均为环保型杀菌剂能够有效抗菌,三种杀菌剂同时抗菌,能够有效增加抗菌时间,增强抗菌效果;在环保层中加入纳米膨润土和淀粉均为无污染型原材料,能够有效后期使用过程中的环境减少污染。
具体实施方式
为使本领域技术人员更加清楚和明确本发明的技术方案,下面结合实施例对本发明作进一步详细的描述,但本发明的实施方式不限于此。
本实施例提供的抗菌环保薄膜,包括环保层、抗菌层和基体层;
环保层按重量份包括纳米膨润土10~15份、硬脂酸铁20~35份、抗氧剂10~15份、交联剂15~30份和淀粉40~50份;
抗菌层按重量份包括花青素15~30份、双氧水10~15份、水溶性甲壳素20~25份;
基体层按重量份包括聚乙烯50~80份、丙烯腈15~30份、丁二烯20~30份、苯乙烯20~50份、偶联剂15~30份和稳定剂18~30份。
抗氧剂为抗氧剂1010、抗氧剂1076、抗氧剂CA或抗氧剂164中的一种或多种。
淀粉为交联淀粉,交联剂为磷酸酯或醋酸酯中的一种或多种。
花青素的浓度为0.25~0.38mol/ml,水溶性甲壳素为羟乙基,羟乙基的浓度为0.35~0.52mol/ml。
偶联剂为甲氧基或乙氧基中的一种或者多种。
稳定剂为稀土稳定剂XT-1、XT-2或XT-3中的一种或多种。
纳米膨润土的粒度为10~15nm。
一种抗菌环保薄膜的制备工艺,包括如下步骤:
步骤1:环保层的制备,在加热15~35℃条件下,将纳米膨润土与硬脂酸铁混合后加入适量的水调成糊状后,并依次加入淀粉、抗氧剂和交联剂,混合均匀后得到环保层原料;
步骤2:抗菌层的制备,将花青素、双氧水和水溶性甲壳素三者按比例加入到试剂瓶中混合均匀,得到抗菌层原料;
步骤3:基体层的制备,将聚乙烯、丙烯腈、丁二烯和苯乙烯加热到80~130℃条件下加热熔融,并放入搅拌机中以315r/min搅拌10~15min,搅拌均匀后依次加入偶联剂和稳定剂,继续搅拌3~5min,得到基体层原料;
步骤4:将环保层原料、抗菌层原料和基体层原料三者混合均匀后放入搅拌机中,混合均匀后输入吹膜机中,吹膜温度为135~140℃,吹膜制备得到抗菌环保薄膜。
在步骤2中,花青素、双氧水和水溶性三者的重量比例为1:3:2。
在步骤4中,环保层原料、抗菌层原料和基体层原料放入比例为3:2:5。
实施例1:
一种抗菌环保薄膜的制备工艺,包括如下步骤:
步骤1:环保层的制备,在加热15℃条件下,将纳米膨润土10份与硬脂酸铁20份混合后加入适量的水调成糊状后,并依次加入淀粉40份、抗氧剂10份和交联剂15份,混合均匀后得到环保层原料;
步骤2:抗菌层的制备,将花青素15份、双氧水10份、水溶性甲壳素20份三者按比例加入到试剂瓶中混合均匀,得到抗菌层原料;
步骤3:基体层的制备,将聚乙烯50份、丙烯腈15份、丁二烯20份和苯乙烯20份加热到80℃条件下加热熔融,并放入搅拌机中以315r/min搅拌10min,搅拌均匀后依次加入偶联剂15份和稳定剂18份,继续搅拌4min,得到基体层原料;
步骤4:将环保层原料、抗菌层原料和基体层原料三者混合均匀后放入搅拌机中,混合均匀后输入吹膜机中,吹膜温度为135℃,吹膜制备得到抗菌环保薄膜。
实施例2:
步骤1:环保层的制备,在加热35℃条件下,将纳米膨润土12份与硬脂酸铁22份混合后加入适量的水调成糊状后,并依次加入淀粉42份、抗氧剂12份和交联剂20份,混合均匀后得到环保层原料;
步骤2:抗菌层的制备,将花青素20份、双氧水12份、水溶性甲壳素22份三者按比例加入到试剂瓶中混合均匀,得到抗菌层原料;
步骤3:基体层的制备,将聚乙烯60份、丙烯腈20份、丁二烯24份和苯乙烯30份加热到130℃条件下加热熔融,并放入搅拌机中以315r/min搅拌15min,搅拌均匀后依次加入、偶联剂20份和稳定剂20份,继续搅拌5min,得到基体层原料;
步骤4:将环保层原料、抗菌层原料和基体层原料三者混合均匀后放入搅拌机中,混合均匀后输入吹膜机中,吹膜温度为140℃,吹膜制备得到抗菌环保薄膜。
实施例3:
步骤1:环保层的制备,在加热35℃条件下,将纳米膨润土14份与硬脂酸铁30份混合后加入适量的水调成糊状后,并依次加入淀粉48份、抗氧剂14份和交联剂25份,混合均匀后得到环保层原料;
步骤2:抗菌层的制备,将花青素20份、双氧水14份、水溶性甲壳素20~25份三者按比例加入到试剂瓶中混合均匀,得到抗菌层原料;
步骤3:基体层的制备,将聚乙烯70份、丙烯腈25份、丁二烯25份和苯乙烯40份加热到130℃条件下加热熔融,并放入搅拌机中以315r/min搅拌15min,搅拌均匀后依次加入、偶联剂25份和稳定剂25份,继续搅拌5min,得到基体层原料;
步骤4:将环保层原料、抗菌层原料和基体层原料三者混合均匀后放入搅拌机中,混合均匀后输入吹膜机中,吹膜温度为140℃,吹膜制备得到抗菌环保薄膜。
实施例4:
步骤1:环保层的制备,在加热35℃条件下,将纳米膨润土15份与硬脂酸铁35份混合后加入适量的水调成糊状后,并依次加入淀粉50份、抗氧剂15份和交联剂30份,混合均匀后得到环保层原料;
步骤2:抗菌层的制备,将花青素30份、双氧水15份、水溶性甲壳素25份三者按比例加入到试剂瓶中混合均匀,得到抗菌层原料;
步骤3:基体层的制备,将聚乙烯80份、丙烯腈30份、丁二烯30份和苯乙烯50份加热到130℃条件下加热熔融,并放入搅拌机中以315r/min搅拌15min,搅拌均匀后依次加入、偶联剂30份和稳定剂30份,继续搅拌4min,得到基体层原料;
步骤4:将环保层原料、抗菌层原料和基体层原料三者混合均匀后放入搅拌机中,混合均匀后输入吹膜机中,吹膜温度为135~140℃,吹膜制备得到抗菌环保薄膜。
综上所述,在本实施例中,按照本实施例的抗菌环保薄膜及其制备工艺,本实施例提供的抗菌环保薄膜及其制备工艺,由实施例1~实施例4可知,实施例3制备的薄膜抗菌效果最佳。将薄膜采用环保层、抗菌层和基体层三层单独制备,能够使原料混合的更加均匀,同时在抗菌层中加入花青素、双氧水和水溶性甲壳素均为环保型杀菌剂能够有效抗菌,三种杀菌剂同时抗菌,能够有效增加抗菌时间,增强抗菌效果;在环保层中加入纳米膨润土和淀粉均为无污染型原材料,能够有效后期使用过程中的环境减少污染。
以上所述,仅为本发明进一步的实施例,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明所公开的范围内,根据本发明的技术方案及其构思加以等同替换或改变,都属于本发明的保护范围。
Claims (10)
1.一种抗菌环保薄膜,其特征在于,包括环保层、抗菌层和基体层;
所述环保层按重量份包括纳米膨润土10~15份、硬脂酸铁20~35份、抗氧剂10~15份、交联剂15~30份和淀粉40~50份;
所述抗菌层按重量份包括花青素15~30份、双氧水10~15份、水溶性甲壳素20~25份;
所述基体层按重量份包括聚乙烯50~80份、丙烯腈15~30份、丁二烯20~30份、苯乙烯20~50份、偶联剂15~30份和稳定剂18~30份。
2.如权利要求1所述的一种抗菌环保薄膜,其特征在于,所述抗氧剂为抗氧剂1010、抗氧剂1076、抗氧剂CA或抗氧剂164中的一种或多种。
3.如权利要求1所述的一种抗菌环保薄膜,其特征在于,所述淀粉为交联淀粉,所述交联剂为磷酸酯或醋酸酯中的一种或多种。
4.如权利要求1所述的一种抗菌环保薄膜,其特征在于,所述花青素的浓度为0.25~0.38mol/ml,所述水溶性甲壳素为羟乙基,所述羟乙基的浓度为0.35~0.52mol/ml。
5.如权利要求1所述的一种抗菌环保薄膜,其特征在于,所述偶联剂为甲氧基或乙氧基中的一种或者多种。
6.如权利要求1所述的一种抗菌环保薄膜,其特征在于,所述稳定剂为稀土稳定剂XT-1、XT-2或XT-3中的一种或多种。
7.如权利要求1所述的一种抗菌环保薄膜,其特征在于,所述纳米膨润土的粒度为10~15nm。
8.一种抗菌环保薄膜的制备工艺,其特征在于,包括如下步骤:
步骤1:环保层的制备,在加热15~35℃条件下,将纳米膨润土与硬脂酸铁混合后加入适量的水调成糊状后,并依次加入淀粉、抗氧剂和交联剂,混合均匀后得到环保层原料;
步骤2:抗菌层的制备,将花青素、双氧水和水溶性甲壳素三者按比例加入到试剂瓶中混合均匀,得到抗菌层原料;
步骤3:基体层的制备,将聚乙烯、丙烯腈、丁二烯和苯乙烯加热到80~130℃条件下加热熔融,并放入搅拌机中以315r/min搅拌10~15min,搅拌均匀后依次加入偶联剂和稳定剂,继续搅拌3~5min,得到基体层原料;
步骤4:将环保层原料、抗菌层原料和基体层原料三者混合均匀后放入搅拌机中,混合均匀后输入吹膜机中,吹膜温度为135~140℃,吹膜制备得到抗菌环保薄膜。
9.如权利要求8所述的一种抗菌环保薄膜的制备工艺,其特征在于,在步骤2中,花青素、双氧水和水溶性三者的重量比例为1:3:2。
10.如权利要求8所述的一种抗菌环保薄膜的制备工艺,其特征在于,在步骤4中,环保层原料、抗菌层原料和基体层原料放入比例为3:2:5。
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