CN108995298A - 一种环保型纸塑复合袋的制造方法 - Google Patents

一种环保型纸塑复合袋的制造方法 Download PDF

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CN108995298A
CN108995298A CN201810754703.1A CN201810754703A CN108995298A CN 108995298 A CN108995298 A CN 108995298A CN 201810754703 A CN201810754703 A CN 201810754703A CN 108995298 A CN108995298 A CN 108995298A
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paper
environment
plastic
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方星
黄胜
方亮
曹顺
毛曙明
张帆
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Tongcheng Wanfang Paper-Plastic Packaging Co Ltd
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Abstract

本发明公开了一种环保型纸塑复合袋的制造方法，包括以下步骤，原料配比：乙烯10‑20份、乳化硅油2‑3份、乳糖2‑3份、润滑剂2‑3份、亚磷酸脂1‑2份、增溶剂1‑2份、生物降解塑料10‑20份、可降解物质2‑3份，先将聚乙烯、乳化硅油、润滑剂、亚磷酸脂、增溶剂、可降解物质进行混合，得到混合后的母料A，然后将母料A放入挤压机中进行挤出成型、加工以制得所述易降解塑料膜；其中，所述挤出机包括依次连接的加料段、中段和挤出机头，且所述挤出机的工作温度为：加料段110‑130℃，中段130‑160℃，挤出机头210‑280℃。该环保型纸塑复合袋机械性能优异，且易降解，原材料简单易得，用其制得的纸塑复合袋耐用、环保，适于广泛使用。

Description

一种环保型纸塑复合袋的制造方法
技术领域
本发明属于纸塑复合袋及其制备技术领域，特别涉及一种环保型纸塑复合袋的制造方法。
背景技术
塑料袋在日常生活中及其常见，因其使用方便，常用于打包、存储食物。最常见的塑料袋按照材质分类可以分为塑料袋和纸塑复合塑料袋。塑料袋虽然韧性强，结实耐用，但是在环保方面远不如纸塑复合袋，纸塑复合塑料袋的机械强度虽然不如塑料袋，但是其纸质层易降解，内层塑料层也比一般塑料袋要薄，采用可降解材料制成，降解速度更快，进而保护环境，保证使用者的身体健康。但是目前由于纸塑袋的成本比较高，造价高于普通塑料袋，因此纸塑袋的应用领域没有塑料袋广泛，纸塑袋的成本问题也需要进一步解决。
发明内容
本发明的目的是提供一种环保型纸塑复合袋的制造方法，该纸塑袋降解性能优异，且无污染，原材料简单易得，该纸塑袋耐用、环保，适于广泛使用。但是由于成本比较高，致使该环保型纸塑复合袋不能得到广泛的应用。
为解决上述技术问题，本发明提供了一种环保型纸塑复合袋的制备方法，包括以下步骤：
一种环保型纸塑复合袋的制造方法，其特征在于，包括内层和外层，外层为纸质层，内层为塑料层，所述纸塑复合袋构成原材料按以下重量份数：混和植物纤维50-60份，聚乙烯10-20份，乳化硅油2-3份，乳糖2-3份，润滑剂2-3份，亚磷酸脂1-2份，增溶剂1-2份，生物降解塑料10-20份，可降解物质2-3份；
优选：所述生物降解塑料为热塑性淀粉塑料、脂肪族聚酯、聚乳酸、淀粉/聚乙烯醇等；
优选：所述可降解物质为：聚丙烯酰胺或聚乳酸等；
先将聚乙烯、乳化硅油、润滑剂、亚磷酸脂、增溶剂、可降解物质进行混合，将混合后的母料A放入挤压机中进行挤出成型、加工以制得所述易降解塑料膜；
其中，所述挤压机包括依次连接的加料段、中段和挤出机头，且所述挤出机的工作温度为：加料段110-130℃，中段130-160℃，挤出机头210-280℃；
通过上述技术方案，本发明选择聚乙烯乳化硅油、润滑剂、亚磷酸脂、增溶剂、可降解物质混合、热处理来改性聚乙烯，并通过控制挤出机的各段的温度为：加料段110-130℃，中段130-160℃，挤出机头210-280℃。以使制得的薄膜具有优异的机械强度，经久耐用；但同时也环保、易降解。
本发明提供一种环保型纸塑袋及其制备方法，与现有技术相比优点在于：
本发明的一种环保型纸塑袋原料中采用生物降解塑料、植物纤维、乳化硅油、乳糖等易降解的原材料，制备的纸塑袋具有优良的韧性、耐温度性及耐酸碱度，使用报废后，在自然环境中，可快速降解，对环境无污染，对人体健康无害；本发明的易降解环保纸塑袋亦可循环利用，把易降解环保纸塑袋纸质层和塑料层分层后，塑料层和纸质层分别绞碎，重新变成生产易降解环保纸塑袋的原材料，即可再次加工形成新的易降解环保纸塑袋；
本发明易降解环保纸塑袋的制备方法中，通过将多种设备复合成一条生产线，能够生产不同型号不同规格的纸塑袋，且自动化程度高，质量稳定，效率高，减少了企业设备的投入，降低纸塑袋生产成本。
本发明提供纸塑袋中使用了生物降解塑料和可降解物质，因而不仅可以实现可降解塑料的生物降解、并且具备降低纸塑袋成本的功能，提高降解速率，实现塑料制品的完全生物降解，且降解产物对环境无污染。同时还解决了可降解物质的添加量与最终使用性能、成本以及降解速率之间的矛盾。
当然，实施本发明的任一产品并不一定需要同时达到以上所述的所有优点。
具体实施方式
以下对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
在本文中所描述的范围的任何值都不限于该精确的范围或值，这些范围或值应当理解为包含接近这些范围或值的值。对于数值范围来说，各个范围的端点值之间、各个范围的端点值和单独的点值之间，以及单独的点值之间可以彼此组合而得到一个或多个新的数值范围，这些数值范围应被视为在本文中具体公开。
本发明提供了一种环保型纸塑袋及其制备方法，包括以下步骤：
先将聚乙烯、乳化硅油、润滑剂、亚磷酸脂、增溶剂、可降解物质进行混合，将混合后的母料A放入挤压机中进行挤出成型、加工以制得所述易降解塑料膜；
其中，所述挤压机包括依次连接的加料段、中段和挤出机头，且所述挤出机的工作温度为：加料段110-130℃，中段130-160℃，挤出机头210-280℃。
上述可降解物质的制备方法有多种选择，但是为了进一步提供制得的可降解物质的性能，优选地，所述可降解物质由以下方法制得：
将热塑性淀粉塑料、脂肪族聚酯、聚乳酸、淀粉/聚乙烯醇进行加热处理，混合，获得可降解物质；
将聚乙烯、乳化硅油、润滑剂、亚磷酸脂、增溶剂、可降解物质进行熔炼以获得熔化物质；
将上述可融化物质加入挤压机进行挤压，获得可降解薄膜。
为使本发明实施例的目的、技术方案和优点更加清楚，下面结合本发明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，所描述的实施例的范围值是可变范围值，因此本实施例只是部分实施例，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作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。
实施例1：
本实施例环保型纸塑袋包括外层和内层，外层为纸质层，内层为塑料层，塑料层由以下重量份的原料构成为：聚乙烯10-20份，乳化硅油2-3份，乳糖2-3份，润滑剂2-3份，亚磷酸脂1-2份，增溶剂1-2份，生物降解塑料10-20份，可降解物质2-3份。
本实施例环保型纸塑复合袋的制备方法，包括以下步骤：
S01：所述的各种原材料混合制得母料A，将母料A加入挤压机内，挤压、拉伸获得塑料膜，所述挤出机的工作温度为：加料段110-130℃，中段130-160℃，挤出机头210-280℃；
S02：将S01所得塑料薄膜进行切割，将切割后的薄膜附着在纸质层的内层上，获得复合纸塑材料；
S03：将复合纸塑材料根据需要加工成不同的纸塑复合袋。
实施例2：
本实施例环保型纸塑袋包括外层和内层，外层为纸质层，内层为塑料层，塑料层由以下重量份的原料构成为：聚乙烯10-20份，乳化硅油2-3份，乳糖2-3份，润滑剂2-3份，亚磷酸脂1-2份，增溶剂1-2份，生物降解塑料10-20份，可降解物质2-3份。
本实施例环保型纸塑复合袋的制备方法，包括以下步骤：
S01：所述的各种原材料混合制得母料A，将母料A加入挤压机内，挤压、拉伸获得塑料膜，所述挤出机的工作温度为：加料段130-150℃，中段160-180℃，挤出机头280-330℃；
S02：将S01所得塑料薄膜进行切割，将切割后的薄膜附着在纸质层的内层上，获得复合纸塑材料；
S03：将复合纸塑材料根据需要加工成不同的纸塑复合袋。
实施例3：
本实施例环保型纸塑袋包括外层和内层，外层为纸质层，内层为塑料层，塑料层由以下重量份的原料构成为：聚乙烯20-30份，乳化硅油5-6份，乳糖5-6份，润滑剂5-6份，亚磷酸脂2-4份，增溶剂2-4份，生物降解塑料20-30份，可降解物质5-6份。
本实施例环保型纸塑复合袋的制备方法，包括以下步骤：
S01：所述的各种原材料混合制得母料A，将母料A加入挤压机内，挤压、拉伸获得塑料膜，所述挤出机的工作温度为：加料段110-130℃，中段130-160℃，挤出机头210-280℃；
S02：将S01所得塑料薄膜进行切割，将切割后的薄膜附着在纸质层的内层上，获得复合纸塑材料；
S03：将复合纸塑材料根据需要加工成不同的纸塑复合袋。
实施例4：
本实施例环保型纸塑袋包括外层和内层，外层为纸质层，内层为塑料层，塑料层由以下重量份的原料构成为：聚乙烯20-30份，乳化硅油5-6份，乳糖5-6份，润滑剂5-6份，亚磷酸脂2-4份，增溶剂2-4份，生物降解塑料20-30份，可降解物质5-6份。
本实施例环保型纸塑复合袋的制备方法，包括以下步骤：
S01：所述的各种原材料混合制得母料A，将母料A加入挤压机内，挤压、拉伸获得塑料膜，所述挤出机的工作温度为：加料段130-150℃，中段160-180℃，挤出机头280-330℃；
S02：将S01所得塑料薄膜进行切割，将切割后的薄膜附着在纸质层的内层上，获得复合纸塑材料；
S03：将复合纸塑材料根据需要加工成不同的纸塑复合袋。

Claims (6)

1.一种环保型纸塑复合袋的制造方法，其特征在于，包括内层和外层，外层为纸质层，内层为塑料层，所述纸塑复合袋构成原材料按以下重量份数：聚乙烯10-20份，乳化硅油2-3份，乳糖2-3份，润滑剂2-3份，亚磷酸脂1-2份，增溶剂1-2份，生物降解塑料10-20份，可降解物质2-3份。
2.根据权利要求1所述的一种环保型纸塑复合袋，其特征在于：所述生物降解塑料为热塑性淀粉塑料、脂肪族聚酯、聚乳酸、淀粉/聚乙烯醇等。
3.根据权利要求1所述的一种环保型纸塑复合袋，其特征在于，所述可降解物质为：聚丙烯酰胺或聚乳酸等。
4.根据权利要求1所述的一种环保型纸塑复合袋，制备塑料层，其特征在于，包括以下步骤：
S01：所述的各种原材料混合制得母料A，将母料A加入挤压机内，挤压、拉伸获得塑料膜；
S02：将S01所得塑料薄膜进行切割，将切割后的薄膜附着在纸质层的内层上，获得复合纸塑材料；
S03：将复合纸塑材料根据需要加工成不同的纸塑复合袋。
5.根据权利要求1所述的一种环保型纸塑复合袋，其特征在于，所述可降解物质为：聚丙烯酰胺或聚乳酸。
6.根据权利要求4所述的一种环保型纸塑复合袋，所述塑料膜是一种可降解的环保型薄膜。
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