It is a substance with good adhesion properties. Adhesion and cohesion from the surface to connect objects.
A class of organic or inorganic, natural or synthetic substances that can connect the same or two or more homogenous or heterogeneous parts (or materials) together, and have sufficient strength after curing, collectively referred to as adhesives or Adhesives, adhesives, customarily referred to simply as glues.
Divided into natural polymer compounds (starch, animal skin glue, bone glue, natural rubber, etc.), synthetic polymer compounds (epoxy resin, phenolic resin, urea resin , polyurethane and other thermosetting resins , polyvinyl acetal, perchloroethylene resin, etc.) Thermoplastic resin , and synthetic rubber such as neoprene , nitrile rubber, etc. ), or inorganic compounds (silicate, phosphate, etc.). According to the application requirements, curing agents, accelerators, reinforcing agents, diluents, fillers, etc. are often mixed into the adhesive. Classified by purpose, it can also separate warm glue, sealant, structural glue, etc. According to the use process, there are room temperature curing adhesives, pressure-sensitive adhesives, etc. Adhesives can be used to connect dissimilar materials and sheet materials, and the stress distribution at the glued joints is even. Epoxy resin, neoprene rubber and sealant are commonly used in container manufacturing and repair.
In recent years, organic adhesives have been used more and more widely, and the bonding technology has also matured, and it has become one of the three contemporary connection technologies for bonding, welding, and mechanical connection.
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