Influence of pressure time and temperature on the bonding of double-sided tape
1. The adhesive pressure of the double-sided tape is 25PSI: the tape should be in full contact with the object to be pasted, and it should be cut and used on the surface with serious unevenness. ①The adhesive pressure of the double-sided tape is 25PSI: the tape and the object to be pasted should be in full contact, and it should be cut and used on the surface with serious unevenness.
2. Smaller area of u200bu200badhesive: In order to achieve a good bonding effect, a certain pressure should be applied to the tape and the bonding surface to make the tape fully in contact with the bonding surface. It is recommended to use a scraper and or a roller.
3. Adhesives with larger area and longer span: in order to achieve a good bonding effect, it is necessary to apply a certain pressure to the tape and the bonding surface, so that the tape and the bonding surface are fully contracted, and the weights are used to average Press for 12 hours to increase the contact between the tape and the surface of the adhesive, or evenly clamp it with a clamp to make the tape fully contact the surface of the adhesive.
Time: The double-sided tape has initial adhesion, 24 hours of initial curing to reach 80% of the hardness, but it takes 72 hours to reach the maximum strength. During this period, the structural operation is carried out in a hurry.
Temperature: The operating temperature of the double-sided tape should not be lower than 10℃, because the temperature is too low, the initial adhesion of the tape will be greatly reduced, and the curing time will be prolonged.
If the temperature is too low, the adhesive material and double-sided tape can be moved to a warm room for storage or heat treatment before operation.