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Performance Indexes of Petroleum Resins for Hot Melt Adhesives

author£ºadmin Date£º2016/12/28 17:45:01

In the preparation of hot-melt adhesives, pressure-sensitive adhesive. Only the matrix resin melting at a certain temperature only when there is adhesive force, once the temperature drops, the bonding will decline or even lose the ability to bond. The addition of petroleum resin in the elastomer can not only improve the stickiness and wettability of the hot melt adhesive, but also improve the surface contact effect and the characteristic adhesive property. Obtain the desired balance of viscosity, cohesive strength and interfacial strength. It is also possible to increase the glass transition temperature of the mixture by adjusting the rheology of the adhesive. Adjust the hot-melt adhesive heat-resistant temperature, thereby expanding the use of hot-melt adhesive environment.

The amorphous softening point of the resin is an important factor determining the properties of the resin. The other physical properties of the petroleum resin, such as chroma and compatibility, are not the fixed melting point of the amorphous petroleum resin obtained from the polymerization of the monoolefin and the diene. Melt viscosity, acid value and iodine value is also an important factor in determining the field of petroleum resin applications in addition to the above basic requirements. Hot-melt adhesives, pressure-sensitive adhesive with petroleum resin should also have good thermal stability, high shear strength, curing speed, uniform and stable filler dispersion and strong infiltration and so on. Foreign hot-melt adhesives, pressure-sensitive adhesive with a lot of preparation of petroleum resin. The use of modifiers are also varied, styrene and its derivatives, terpenes, pinene, maleic anhydride and the composition of complex C9 fractions used for tackifying resin preparation.

In addition to the above basic requirements. Hot-melt adhesives, pressure-sensitive adhesive with petroleum resin should also have good thermal stability, high shear strength, curing speed, uniform and stable filler dispersion and strong infiltration and so on. Foreign hot-melt adhesives, pressure-sensitive adhesive with a lot of preparation of petroleum resin. The use of modifiers are also varied, styrene and its derivatives, terpenes, pinene, maleic anhydride and the composition of complex C9 fractions used for tackifying resin preparation.