What are the effects of adhesive viscosity and thickness on high temperature tape

High temperature resistant tape is loved by users because it can withstand higher temperature than ordinary tape. Do you know why high temperature tape can withstand such high temperature? Do you know the effect of viscosity and thickness of high temperature tape adhesive on high temperature tape? Next, let's listen to the small series of high-temperature tape manufacturers.Double Sided Tape

Due to the poor flexibility of the chain, the three-dimensional network structure of the high-temperature resistant tape is not easy to deform after tension, and the load it can bear is also high. Due to the lack of cross-linking bond, the thermoplastic polymer has large chain deformation and slow relative movement under the action of external force, resulting in creep. Its secondary elongation is higher than that of thermosetting polymers, and the load it can bear is not high.Double Sided Tape

The elastomer material of high-temperature tape is easy to produce reversible deformation under the action of external force because the polymer contains many flexible segments. The creep of thermoplastic and elastic deformation of elastomer reduce the stress concentration of the specimen under the action of shear force to a certain extent, and alleviate the linear force on the bonding edge of the specimen. Low volume thermoplastic resin and polyethylene polymer adhesives have high deformation rate without fracture under external force, but the load they can bear is lower.Double Sided Tape

The adhesive thickness of high temperature adhesive tape in lap joint directly affects the shear strength of joint. Generally speaking, the increase of adhesive thickness is accompanied by the decrease of joint shear strength. However, the thinner the adhesive, the better. Too thin adhesive layer is prone to lack of adhesive, and the lack of adhesive becomes the defect of adhesive film. When under stress, the stress around the defect is easy to concentrate, which accelerates the rupture of adhesive film. The appropriate thickness of adhesive depends on the shape of adhesive joint, the type of load and the nature of adhesive.