第七章粘合剂（The seventh chapter adhesive）.docVIP

第七章粘合剂（The seventh chapter adhesive） In the seventh chapter, the composition and classification of adhesive adhesive adhesive: the first section will be two kinds of same or different kinds of solid substances together Substances, also known as adhesives, adhesives, or directly referred to as glue. In the 1. component adhesive in the base material: (binder) a base material that is a major and essential component of an adhesive. It is also known as the matrix, also known as binder skeleton. It is also known as the matrix, also known as binder skeleton. In the curing agent. Also known as hardener or curing agent. It can make linear molecular shape A web or body structure that causes the binder to solidify. In the packing. The addition of filler can increase the elastic modulus of binder and decrease it Linear expansion coefficient reduces curing shrinkage, increases viscosity and impact toughness, Improve service temperature, wear resistance and adhesive strength. In the toughening agent (plasticizer). Toughening agent can improve the properties of adhesive, Increase toughness, reduce brittleness, and improve the anti peeling and impact resistance of the adhesive layer Force, but also can improve the adhesive fluidity, cold resistance and shock resistance etc.. 1. composition of adhesive: diluent. The main function of the release agent is to reduce viscosity for easy coating Construction. Diluent is divided into two categories: one is inactive diluent, also known as solvent, Examples are acetone, methyl ethyl ketone, ethyl acetate, benzene, toluene and so on. It does not participate in examples of acetone, methyl ethyl ketone, ethyl acetate, benzene, toluene and so on. It does not participate Curing reaction of binder. The other is an active diluent, which is available Reduce the viscosity of the binder, and participate in the curing reaction of the adhesive: Propylene oxide, propyl ether, glycerin epoxy resin, etc.. The crosslinking agent refers to by and large molec