济南塑料袋的特性都有哪些?
塑料袋是我们生活中经常会使用到的一种用品,它分为很多的不同种类,适用于不同的领域。在我们的日常生活中,我们也经常会用到PE塑料袋,PE是聚乙烯的简称,是由乙烯聚合而成的热塑性树脂。它的好处有很多,可用于包装服装、箱包、电子产品等。这主要由PE的杰出特性决定的,那么PE袋有着怎样的特性呢?下面就由PE袋生产厂家为我们介绍一下。
Plastic bags are often used in our life. They are divided into many different types and are suitable for different fields. In our daily life, we often use PE plastic bags. PE is the abbreviation of polyethylene, a thermoplastic resin polymerized by ethylene. It has many advantages and can be used for packaging clothing, bags, electronic products, etc. This is mainly determined by the outstanding characteristics of PE. What are the characteristics of PE bags? Next, the PE bag manufacturer will introduce it to us.
耐腐蚀性,电绝缘性(尤其高频绝缘性)优良,可以氯化,化学交联、辐照交联改性,可用玻璃纤维增强.低压聚乙烯的熔点,刚性,硬度和强度较高,吸水性小,有良好的电性能和耐辐射性;高压聚乙烯的柔软性,伸长率,冲击强度较好;高分子量聚乙烯冲击强度高,耐疲劳,耐磨.低压聚乙烯适于制作耐腐蚀零件和绝缘零件;高压聚乙烯适于制作薄膜等;高分子量聚乙烯适于制作减震,耐磨及传动零件。
Excellent corrosion resistance and electrical insulation (especially high frequency insulation). It can be modified by chlorination, chemical crosslinking and irradiation crosslinking. It can be reinforced by glass fiber Low pressure polyethylene has high melting point, rigidity, hardness and strength, low water absorption, good electrical properties and radiation resistance; High pressure polyethylene has good flexibility, elongation and impact strength; High molecular weight polyethylene has high impact strength, fatigue resistance and wear resistance Low voltage polyethylene is suitable for making corrosion-resistant parts and insulating parts; High pressure polyethylene is suitable for making films, etc; High molecular weight polyethylene is suitable for shock absorption, wear resistance and transmission parts.
成型特性:
Forming characteristics:
1.结晶料,吸湿小,不须充分干燥,流动性好,流动性对压力反应灵敏,成型时宜用高压注射,料温均匀,填充速度快,保压充分.不宜用直接浇口,以防收缩不均,内应力大.注意选择浇口位置,防止产生缩孔和变形.
1. The crystalline material has small moisture absorption, does not need to be fully dry, has good fluidity and is sensitive to pressure. High pressure injection should be used during molding. The material temperature is uniform, the filling speed is fast and the pressure is fully maintained Direct gate should not be used to prevent uneven shrinkage and large internal stress Pay attention to the gate psition to prevent shrinkage and deformation
2.收缩范围和收缩值大,方向性明显,易变形翘曲.冷却速度宜慢,模具设冷料穴,并有冷却系统.
2. Large shrinkage range and value, obvious directionality, easy to deform and warp The cooling speed should be slow. The die is equipped with cold material cavity and cooling system
3.加热时间不宜过长,否则会发生分离.
3. The heating time should not be too long, otherwise separation will occur
4.软质塑件有较浅的侧凹槽时,可强行脱模.5.可能发生融体破裂,不宜与溶剂接触,以防开裂。
4. When soft plastic parts have shallow side grooves, they can be forcibly demoulded. 5 Melt fracture may occur and should not be in contact with solvent to prevent cracking.
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This article is provided by Jinan plastic bag. Our website is: http://www.sxsuliao.com We will serve you with wholehearted enthusiasm. Welcome to visit!