The quality of raw materials directly affects the effect of shrink film bags

Everyone sees many plastic bags in daily life. I know that there are many kinds of plastic bags, including pe, opp, and cpe plastic bags. The molecular structure of plastic bags of different raw materials is different, but for the same plastic bag, if its molecular weight or The molecular weight distribution is different. For the same type of tape, if its composition is different, the processing properties of the plastic bag and the mechanical properties, physical and chemical properties after making the film will be different. Analysis of the influence of raw materials on plastic bags The influence of raw materials on plastic bags. 1. Polyethylene can be added to the tape raw material lubricant to improve the slipperiness of the tape. 2. When polyethylene is used to prepare a film, it is easy to thermally decompose and a stabilizer must be added. 3. The tape must have a reasonable formula combination, and the tape raw materials in the formula must have an appropriate ratio. Adjusting the composition and ratio can change the performance of the tape. Therefore, in the production of pe, opp, and cpe tapes, polymers and certain additives can be mixed in a certain ratio to achieve the purpose of improving certain aspects of performance, so everyone knows that even the same type of plastic bags, raw materials The difference will also cause a great difference in the performance of the plastic bag