Kakšna so lepila za torne materiale?
All media materials that can connect the same or different types of materials together are called adhesives, also known as adhesives. It is an old and young science. The so-called "old" refers to the fact that thousands of years ago, humans began to use natural polymers such as animal glue and vegetable glue to bond products and production tools. Until the beginning of the last century, due to the appearance of various synthetic resins and synthetic rubbers, especially the successful production and commercialization of some representative polymers such as phenolic resin, epoxy resin, chloroprene rubber, nitrile rubber, etc., modern adhesives have The comprehensive properties of high strength, durability, and outstanding heat resistance have developed rapidly.
Glavni sistem, ki ga tvori lepilo tornega materiala, je vrsta smole, gumijasta in kompozitna vrsta smole in gume. Večina lepil je narejenih iz polimernih materialov, od katerih je treba nekaterim dodati nekaj topil za dokončanje strjevanja s kemičnimi reakcijami ali fizičnimi učinki, utrjevanje pa se med shranjevanjem lepila počasi odvija. Zato ima lepilo določeno obdobje skladiščenja, ki je povezano s pogoji skladiščenja, kot so vlažnost, temperatura, prezračevanje in tako naprej. Da bi zagotovili, da delovanje lepila ostane v bistvu nespremenjeno v določenem času, je treba posebno pozornost posvetiti načinu oprijema na lepilo. Različne vrste lepil imajo zaradi svojih različnih lastnosti različne pogoje shranjevanja.