THE QUALITY OF RAW MATERIALS DIRECTLY AFFECTS THE EFFECT OF PLA SHRINK FILM

Everyday we see a lot of plastic bags, clothes know that there are many kinds of Pla Shrink Film, there are pe, opp, cpe plastic bags, the molecular structure of the plastic bags of different raw materials is not the same, but for the same plastic bag, if its molecular weight or The molecular weight distribution is different. For the same tape, if the composition is different, the processing properties of the plastic bag and the mechanical properties and physical and chemical properties after film formation will be different.

1. Polyethylene can be added to the raw material of the tape to improve the smoothness of the tape.

2. When preparing a film from polyethylene, it is necessary to add a stabilizer because it is susceptible to thermal decomposition.

3, the tape must have a reasonable formula combination, the raw material of the tape in the formula should have a suitable ratio. Adjusting the composition and ratio can change the performance of the High Transparency Pla Shrink Film.

Therefore, in the production of pe, opp, 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 lead to a great difference in the performance of the plastic bag.