In order to avoid PET sheet from becoming brittle, it can be prevented and controlled from the following aspects:
1.Control the heat treatment temperature in the production process of PET sheet, need to strictly control the heat treatment temperature and time, to avoid excessive heat treatment, resulting in excessive crystallinity of the sheet.
2. Reasonable additives PET sheet additives have an important impact on its quality, should be based on the actual needs of reasonable choice and add. For the additives have been added, should be timely detection of its quality status, to avoid additives deterioration, affecting the quality of PET sheet.
3. Control of storage conditions PET sheet storage conditions require dry, ventilated, moisture-proof, and to avoid storage in high temperature, high humidity environment. For PET sheet with long storage time, it can be dried to reduce the moisture content.
4. Ensure that the production operation specification in the production process of PET sheet, pay attention to the operation specification, to avoid due to the extrusion process, cooling control, pressure adjustment and other factors lead to changes in the internal structure of PET sheet, affecting its mechanical properties.PET sheet is a high-performance packaging materials, in the actual application of the phenomenon of brittleness occurs from time to time. In order to avoid the occurrence of PET sheet embrittlement phenomenon, we need to pay attention to the control of various parameters in the manufacturing and use of the process, such as heat treatment temperature and time, the type and quantity of additives, storage environment, etc.. Only on the basis of strict control of the parameters, we can produce PET sheet with stable performance.
Post time: Sep-28-2024