in daily life. Non-woven bags can be seen everywhere, so what are the advantages of non-woven bags? Shijiazhuang Zeyi packs them one by one Non-woven fabric is a kind of non-woven fabric, which directly uses polymer chips, short fibers or filaments to form new fiber products with soft, air-permeable and flat structure through various web…
Varieties and advantages and disadvantages: 1. Polyethylene (PE) Polyethylene is a high-molecular polymer of ethylene and a thermoplastic. According to its industrial production methods, there are high-pressure, medium-pressure, and low-pressure polymerization methods. Different production methods have very different molecular structures, and product properties also vary with molecular structure. Polyethylene is a milky white waxy solid,…
1. PE (polyethylene): PE is the world’s largest production of synthetic resin and the largest consumption of plastic packaging materials. Polyethylene products are divided into three types: low density, medium density and high density. Among them, high-density polyethylene (HDPE) has a high degree of crystallinity, and its hardness, air tightness, mechanical strength, and chemical resistance…
