C5 petroleum resin is divided into three types: general type, blended type, and elementary color transparent type, with an average molecular weight of 1000 ~ 2500. Light yellow or light brown flaky or granular solid, relative density 0.97-1.07. Softening point is 70 ~ 140 ℃. The refractive index is 1.512. Soluble in acetone, methyl ethyl ketone, ethyl acetate, trichloroethane, cyclohexane, toluene, solvent gasoline, etc.
It has good viscosity increasing, heat resistance, stability, I water resistance, acid and alkali resistance. Good compatibility with phenolic resin, terpene resin, coumarone resin, natural rubber, synthetic rubber, etc., especially with SBR, excellent compatibility. Flammable. Non-toxic.
C5 petroleum resin has good compatibility and can be fused with many petroleum resins. At the same time, its water resistance and acid resistance are very good, and its melting point is very low. In many ways it is very versatile.
C5 for the adhesive industry
Adhesives are generally divided into natural polymer compounds, synthetic polymer compounds, or inorganic compounds. According to the requirements of use, curing agents, accelerators, reinforcing agents, ene release agents, fillers, etc. are often incorporated into the adhesive. Classified by purpose, it can also separate warm glue, sealant, structural glue, etc. There are room temperature curing adhesives, pressure-sensitive adhesives and so on according to the use process. Adhesive can be used to connect dissimilar materials and sheet materials, and the stress distribution at the joint is even. Epoxy resin, neoprene and sealant are commonly used in container manufacturing and repair.
In the adhesive and sealant industry, C5 petroleum resin has occupied an important position as a tackifier resin. Among them, hot-melt adhesives and pressure-sensitive adhesives are the most used. C5 petroleum resins are widely used in many fields, such as in the construction industry, can be used in the construction and decoration of structures, in the automotive industry, can be used as automobiles Of course, there are more fields in the assembly of parts and tires. They are also widely used in wood processing, product packaging, book binding, sanitary products, and shoe manufacturing. Petroleum resin is an indispensable tackifier for many adhesives, especially new adhesives such as hot melt adhesives and pressure sensitive adhesives.