With the frequent use and universality of plastic packaging bags, we all pay special attention to the composition of plastic packaging bags? Which can put food and which can't? Let's talk about the composition of plastic packaging bags with you?

一、PVDC涂覆薄类的塑料包装袋组：PVDC聚偏氯乙烯树脂,常作为复合物质或单体物质及共挤薄膜片，PVDC涂覆薄膜是运用聚丙烯、聚对苯二甲酸乙二醇脂等作为基材的。纯的PVDC软化温度高，且与其分化温度挨近，又与通常增塑剂相溶性差，故加热成型艰难而难以直接运用。实际上运用的PVDC薄膜多为偏氯乙烯和氯乙烯的共聚物，以及和丙烯酸甲脂共聚制成的隔绝性格外好的薄膜。

1、 PVDC coated thin plastic packaging bag group: PVDC polyvinylidene chloride resin, often as a composite or monomer material and co extruded film sheet, PVDC coated film is based on polypropylene, polyethylene terephthalate, etc. Pure PVDC has high softening temperature, close to its differentiation temperature, and poor solubility with common plasticizers, so it is difficult to use directly. In fact, most PVDC films used are copolymers of vinylidene chloride and vinyl chloride, as well as films made by copolymerization with acrylic acid methyl ester.

二、尼龙类塑料包装袋：尼龙类塑料包装袋的特点是隔绝性不随湿度的上升而降低。现在所用的尼龙类塑料包装袋是一种从间二甲基胺和已二酸缩聚而成的尼龙MXD6，有杰出的透明性和耐穿刺性，经常被用于隔绝性要求很高的食物软包装。

2、 Nylon plastic packaging bags: nylon plastic packaging bags are characterized by insulation not decreasing with the increase of humidity. Now the nylon plastic packaging bag is a kind of nylon MXD6 condensed from m-dimethylamine and adipic acid, which has outstanding transparency and puncture resistance, and is often used in the soft packaging of food with high isolation requirements.

以上内容由济南塑料袋厂家整理发布，更多相关信息可以点击官网进行咨询：http://www.sxsuliao.com

The above content is organized and released by Jinan plastic bag manufacturer. For more information, please click the official website for consultation: http://www.sxsuliao.com