CN107903595A - 一种可降解包装用彩印复合膜及其加工方法 - Google Patents

一种可降解包装用彩印复合膜及其加工方法 Download PDF

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CN107903595A
CN107903595A CN201711210150.5A CN201711210150A CN107903595A CN 107903595 A CN107903595 A CN 107903595A CN 201711210150 A CN201711210150 A CN 201711210150A CN 107903595 A CN107903595 A CN 107903595A
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陈柏生
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Sichuan Three Xin Color Printing Packaging Co Ltd
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Abstract

本发明公开了一种可降解包装用彩印复合膜，按照以下重量份组成：塑料原料：20‑30份、油墨原料：1‑5份、凝胶：5‑10份、聚氨酯：0.5‑1份、酚醛树脂：0.1‑0.5份、马铃薯淀粉：15‑20份、汉麻纤维：15‑20份、硅烷偶联剂KH560：0.1‑0.5份、蓖麻油：1‑2份、卡拉胶：1‑5份、氧化锆粉：1‑2份、氧化硅：1‑2份、桃胶粉：1‑2份，该彩印复合膜能被天然微生物降解，利于环保。

Description

一种可降解包装用彩印复合膜及其加工方法
技术领域
本发明涉及彩印包装材料技术领域，具体的是涉及一种可降解包装用彩印复合膜及其加工方法。
背景技术
随着我国经济的发展，包装、印刷行业发展迅猛，市场需求大，而作为彩印包装用的复合膜也迅速的出现在人们的视野中，大量应用于彩印包装行业，但在使用的过程中却容易造成“白色污染”，存在潜在的危害，复合膜结构稳定，不易被分解，这就意味着复合膜垃圾如不加以回收，将在环境中变成污染物永久的存在并不断积累，会对环境造成极大危害，不利于环境的环保，因此研究一种可降解的彩印复合膜是目前亟待解决的问题。
发明内容
为解决上述技术问题，本发明提供了一种可降解包装用彩印复合膜，该彩印复合膜能被天然微生物降解，利于环保。
本发明为了实现上述目的具体采用以下技术方案：
一种可降解包装用彩印复合膜，按照以下重量份组成：塑料原料：20-30份、油墨原料：1-5份、凝胶：5-10份、聚氨酯：0.5-1份、酚醛树脂：0.1-0.5份、马铃薯淀粉：15-20份、汉麻纤维：15-20份、硅烷偶联剂KH560：0.1-0.5份、蓖麻油：1-2份、卡拉胶：1-5份、氧化锆粉：1-2份、氧化硅：1-2份、桃胶粉：1-2份。
优选地，所述塑料原料为：聚乳酸。
制备本发明所述的一种可降解包装用彩印复合膜的方法，包括如下步骤：
(1)选料：油墨原料按照GB/T14624.1-2009标准进行筛选；
(2)将汉麻纤维放入倍量的0.5-0.8mol/L的碳酸氢钠溶液中，常压下，加热至80℃，蒸煮4小时，冷却后取出用0.5-0.8mol/L硼酸洗至中性，放入烘箱中烘干，然后粉碎待用；将硅烷偶联剂KH560溶于蒸馏水中，形成浓度为1.2％的硅烷偶联剂KH560溶液，将粉碎的汉麻纤维浸泡其中，加热至30-40℃，浸泡20-30分钟后过滤出沉淀无，然后放入烘箱中烘干，即得表面处理的汉麻纤维粉；
(3)纯化凝胶：用去离子水清洗凝胶，将凝胶在0.5-0.8mol/L硼酸溶液中浸泡15-20小时，浸泡温度为60-80℃，再用0.5-0.8mol/L的碳酸氢钠清洗至中性，最后用去离子水反复清洗凝胶3-5次即可；
(4)将氧化锆粉和氧化硅混合后放入球磨机中球磨3-4小时后放入纳米粉碎机中粉碎成纳米级粉末，加入总量一半的去离子水，搅拌成悬浊液，然后加入桃胶粉，加热至40-50℃，搅拌30分钟后，再加入蓖麻油，加热至90℃，搅拌2小时，然后送入造粒机中造粒，烘干，得到干燥颗粒；
(5)将马铃薯淀粉、纯化后的凝胶、干燥颗粒、卡拉胶、聚氨酯及酚醛树脂放置在反应釜中，在氮气保护下，压强设置为5MPa，温度设置为50℃，时间设置为30min,反应结束后移到双螺杆挤出机中，进行吹塑成型，得到包装膜半成品；
(6)喷涂：将吹塑成型的包装膜半成品放置喷涂机中工作区域，用去离子水清洗表面后，再在质量浓度为30％的甘油溶液中浸泡15分钟，取出后低温干燥，干燥温度为30℃，随后启动喷涂机，加入油墨原料进行喷涂，喷涂后放置红外烤箱中进行烘干，即得彩印包装复合膜。
本发明的有益效果如下：本发明制备出来的彩印包装复合膜具备较好的气体阻隔性，强韧性和水溶性等优良性能，并且环保无毒可降解，采用汉麻纤维-淀粉-聚乳酸-聚氨酯-酚醛树脂-凝胶共混反应制成可降解的复合膜，解决了单一聚乳酸存在的缺陷，使其应用更加广范，更加环保；本发明加工制得的彩印包装复合膜还具有色彩鲜艳不易褪色等优点。
具体实施方式
为了本技术领域的人员更好的理解本发明，下面结合以下实施例对本发明作进一步详细描述。
实施例1
一种可降解包装用彩印复合膜，按照以下重量份组成：塑料原料：20份、油墨原料：1份、凝胶：5份、聚氨酯：0.5份、酚醛树脂：0.1份、马铃薯淀粉：15份、汉麻纤维：15份、硅烷偶联剂KH560：0.1份、蓖麻油：1份、卡拉胶：1份、氧化锆粉：1份、氧化硅：1份、桃胶粉：1份。
优选地，所述塑料原料为：聚乳酸。
制备本发明所述的一种可降解包装用彩印复合膜的方法，包括如下步骤：
(1)选料：油墨原料按照GB/T14624.1-2009标准进行筛选；
(2)将汉麻纤维放入倍量的0.5mol/L的碳酸氢钠溶液中，常压下，加热至80℃，蒸煮4小时，冷却后取出用0.5mol/L硼酸洗至中性，放入烘箱中烘干，然后粉碎待用；将硅烷偶联剂KH560溶于蒸馏水中，形成浓度为1.2％的硅烷偶联剂KH560溶液，将粉碎的汉麻纤维浸泡其中，加热至30-40℃，浸泡20分钟后过滤出沉淀无，然后放入烘箱中烘干，即得表面处理的汉麻纤维粉；
(3)纯化凝胶：用去离子水清洗凝胶，将凝胶在0.5mol/L硼酸溶液中浸泡15小时，浸泡温度为60℃，再用0.5mol/L的碳酸氢钠清洗至中性，最后用去离子水反复清洗凝胶5次即可；
(4)将氧化锆粉和氧化硅混合后放入球磨机中球磨3小时后放入纳米粉碎机中粉碎成纳米级粉末，加入总量一半的去离子水，搅拌成悬浊液，然后加入桃胶粉，加热至40-50℃，搅拌30分钟后，再加入蓖麻油，加热至90℃，搅拌2小时，然后送入造粒机中造粒，烘干，得到干燥颗粒；
(5)将马铃薯淀粉、纯化后的凝胶、干燥颗粒、卡拉胶、聚氨酯及酚醛树脂放置在反应釜中，在氮气保护下，压强设置为5MPa，温度设置为50℃，时间设置为30min,反应结束后移到双螺杆挤出机中，进行吹塑成型，得到包装膜半成品；
(6)喷涂：将吹塑成型的包装膜半成品放置喷涂机中工作区域，用去离子水清洗表面后，再在质量浓度为30％的甘油溶液中浸泡15分钟，取出后低温干燥，干燥温度为30℃，随后启动喷涂机，加入油墨原料进行喷涂，喷涂后放置红外烤箱中进行烘干，即得彩印包装复合膜。
实施例2
一种可降解包装用彩印复合膜，按照以下重量份组成：塑料原料：30份、油墨原料：1份、凝胶：10份、聚氨酯：1份、酚醛树脂：0.5份、马铃薯淀粉：20份、汉麻纤维：20份、硅烷偶联剂KH560：0.5份、蓖麻油：2份、卡拉胶：5份、氧化锆粉：2份、氧化硅：2份、桃胶粉：2份。
优选地，所述塑料原料为：聚乳酸。
制备本发明所述的一种可降解包装用彩印复合膜的方法，包括如下步骤：
(1)选料：油墨原料按照GB/T14624.1-2009标准进行筛选；
(2)将汉麻纤维放入倍量的0.8mol/L的碳酸氢钠溶液中，常压下，加热至80℃，蒸煮4小时，冷却后取出用0.8mol/L硼酸洗至中性，放入烘箱中烘干，然后粉碎待用；将硅烷偶联剂KH560溶于蒸馏水中，形成浓度为1.2％的硅烷偶联剂KH560溶液，将粉碎的汉麻纤维浸泡其中，加热至30-40℃，浸泡30分钟后过滤出沉淀无，然后放入烘箱中烘干，即得表面处理的汉麻纤维粉；
(3)纯化凝胶：用去离子水清洗凝胶，将凝胶在0.8mol/L硼酸溶液中浸泡20小时，浸泡温度为80℃，再用0.8mol/L的碳酸氢钠清洗至中性，最后用去离子水反复清洗凝胶3次即可；
(4)将氧化锆粉和氧化硅混合后放入球磨机中球磨4小时后放入纳米粉碎机中粉碎成纳米级粉末，加入总量一半的去离子水，搅拌成悬浊液，然后加入桃胶粉，加热至40-50℃，搅拌30分钟后，再加入蓖麻油，加热至90℃，搅拌2小时，然后送入造粒机中造粒，烘干，得到干燥颗粒；
(5)将马铃薯淀粉、纯化后的凝胶、干燥颗粒、卡拉胶、聚氨酯及酚醛树脂放置在反应釜中，在氮气保护下，压强设置为5MPa，温度设置为50℃，时间设置为30min,反应结束后移到双螺杆挤出机中，进行吹塑成型，得到包装膜半成品；
(6)喷涂：将吹塑成型的包装膜半成品放置喷涂机中工作区域，用去离子水清洗表面后，再在质量浓度为30％的甘油溶液中浸泡15分钟，取出后低温干燥，干燥温度为30℃，随后启动喷涂机，加入油墨原料进行喷涂，喷涂后放置红外烤箱中进行烘干，即得彩印包装复合膜。
实施例3
一种可降解包装用彩印复合膜，按照以下重量份组成：塑料原料：25份、油墨原料：4份、凝胶：6份、聚氨酯：0.7份、酚醛树脂：0.7份、马铃薯淀粉：19份、汉麻纤维：19份、硅烷偶联剂KH560：0.3份、蓖麻油：0.5份、卡拉胶：4份、氧化锆粉：1.6份、氧化硅：1.6份、桃胶粉：1.8份。
优选地，所述塑料原料为：聚乳酸。
制备本发明所述的一种可降解包装用彩印复合膜的方法，包括如下步骤：
(1)选料：油墨原料按照GB/T14624.1-2009标准进行筛选；
(2)将汉麻纤维放入倍量的0.7mol/L的碳酸氢钠溶液中，常压下，加热至80℃，蒸煮4小时，冷却后取出用0.7mol/L硼酸洗至中性，放入烘箱中烘干，然后粉碎待用；将硅烷偶联剂KH560溶于蒸馏水中，形成浓度为1.2％的硅烷偶联剂KH560溶液，将粉碎的汉麻纤维浸泡其中，加热至30-40℃，浸泡25分钟后过滤出沉淀无，然后放入烘箱中烘干，即得表面处理的汉麻纤维粉；
(3)纯化凝胶：用去离子水清洗凝胶，将凝胶在0.6mol/L硼酸溶液中浸泡17小时，浸泡温度为75℃，再用0.6mol/L的碳酸氢钠清洗至中性，最后用去离子水反复清洗凝胶4次即可；
(4)将氧化锆粉和氧化硅混合后放入球磨机中球磨3小时后放入纳米粉碎机中粉碎成纳米级粉末，加入总量一半的去离子水，搅拌成悬浊液，然后加入桃胶粉，加热至40-50℃，搅拌30分钟后，再加入蓖麻油，加热至90℃，搅拌2小时，然后送入造粒机中造粒，烘干，得到干燥颗粒；
(5)将马铃薯淀粉、纯化后的凝胶、干燥颗粒、卡拉胶、聚氨酯及酚醛树脂放置在反应釜中，在氮气保护下，压强设置为5MPa，温度设置为50℃，时间设置为30min,反应结束后移到双螺杆挤出机中，进行吹塑成型，得到包装膜半成品；
(6)喷涂：将吹塑成型的包装膜半成品放置喷涂机中工作区域，用去离子水清洗表面后，再在质量浓度为30％的甘油溶液中浸泡15分钟，取出后低温干燥，干燥温度为30℃，随后启动喷涂机，加入油墨原料进行喷涂，喷涂后放置红外烤箱中进行烘干，即得彩印包装复合膜。
以上所述，仅为本发明的较佳实施例，并不用以限制本发明，本发明的专利保护范围以权利要求书为准，凡是运用本发明的说明书所作的等同结构变化，同理均应包含在本发明的保护范围内。

Claims (3)

1.一种可降解包装用彩印复合膜，其特征在于：按照以下重量份组成：塑料原料：20-30份、油墨原料：1-5份、凝胶：5-10份、聚氨酯：0.5-1份、酚醛树脂：0.1-0.5份、马铃薯淀粉：15-20份、汉麻纤维：15-20份、硅烷偶联剂KH560：0.1-0.5份、蓖麻油：1-2份、卡拉胶：1-5份、氧化锆粉：1-2份、氧化硅：1-2份、桃胶粉：1-2份。
2.根据权利要求1所述的一种可降解包装用彩印复合膜，其特征在于：所述塑料原料为：聚乳酸。
3.根据权利要求1所述的一种可降解包装用彩印复合膜的制备方法，其特征在于：包括如下步骤：
(1)选料：油墨原料按照GB/T14624.1-2009标准进行筛选；
(2)将汉麻纤维放入倍量的0.5-0.8mol/L的碳酸氢钠溶液中，常压下，加热至80℃，蒸煮4小时，冷却后取出用0.5-0.8mol/L硼酸洗至中性，放入烘箱中烘干，然后粉碎待用；将硅烷偶联剂KH560溶于蒸馏水中，形成浓度为1.2％的硅烷偶联剂KH560溶液，将粉碎的汉麻纤维浸泡其中，加热至30-40℃，浸泡20-30分钟后过滤出沉淀无，然后放入烘箱中烘干，即得表面处理的汉麻纤维粉；
(3)纯化凝胶：用去离子水清洗凝胶，将凝胶在0.5-0.8mol/L硼酸溶液中浸泡15-20小时，浸泡温度为60-80℃，再用0.5-0.8mol/L的碳酸氢钠清洗至中性，最后用去离子水反复清洗凝胶3-5次即可；
(4)将氧化锆粉和氧化硅混合后放入球磨机中球磨3-4小时后放入纳米粉碎机中粉碎成纳米级粉末，加入总量一半的去离子水，搅拌成悬浊液，然后加入桃胶粉，加热至40-50℃，搅拌30分钟后，再加入蓖麻油，加热至90℃，搅拌2小时，然后送入造粒机中造粒，烘干，得到干燥颗粒；
(5)将马铃薯淀粉、纯化后的凝胶、干燥颗粒、卡拉胶、聚氨酯及酚醛树脂放置在反应釜中，在氮气保护下，压强设置为5MPa，温度设置为50℃，时间设置为30min,反应结束后移到双螺杆挤出机中，进行吹塑成型，得到包装膜半成品；
(6)喷涂：将吹塑成型的包装膜半成品放置喷涂机中工作区域，用去离子水清洗表面后，再在质量浓度为30％的甘油溶液中浸泡15分钟，取出后低温干燥，干燥温度为30℃，随后启动喷涂机，加入油墨原料进行喷涂，喷涂后放置红外烤箱中进行烘干，即得彩印包装复合膜。
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* Cited by examiner, † Cited by third party
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