SBS/SIS adhesive technology and application

SBS is an abbreviation for styrene-butadiene-styrene triblock thermoplastic elastomer. Also known as thermoplastic styrene-butadiene rubber, SBS is known as “third generation synthetic rubber”. SBS has the dual characteristics of plastic and rubber, that is, plasticity at high temperatures and elasticity at room temperature. Do not need to cure, there is the performance of vulcanized rubber; without plastic, it has the characteristics of thermoplastics. SBS has good compatibility with many polymers, excellent solubility, high temperature melting, low melt viscosity, and easy modification. In the architectural decoration, printing film, pressure sensitive adhesives, wood industry, luggage footwear industry has been widely used.

At present, the main varieties of decorative adhesives are neoprene and SBS adhesives. Due to its structural characteristics, SBS adhesives have poor initial tackiness and insufficient bonding strength compared to neoprene adhesives. In particular, adhesiveness to polar materials is poor and the tack retention time is too short, which is not conducive to construction operations. Defects such as poor heat resistance and poor weatherability have been greatly limited in the application of the decoration industry.

The research on the modification of SBS at home and abroad has never been interrupted. Due to the lack of polar groups in SBS macromolecules, SBS adhesives are not ideal for bonding with polar substrates such as aluminum-plastic board, fireproof board and PVC board. In order to improve the adhesive properties of SBS adhesives, people have conducted studies on graft modification, epoxidation, etc. of SBS based adhesives, but this will undoubtedly increase the investment and industrial costs of adhesives manufacturers, and the process is complicated and unavoidable. Contrary to this.

Now, just by adding SBS magnetic accelerators, you can produce first-rate, good glue.