Performance Index of Petroleum Resin for Hot Melt Adhesive
Mar 15, 2022
The softening point of petroleum resin is generally 80-140 ℃, the relative density is 0.970-0.975, the relative molecular weight is less than 2×103, insoluble in water, soluble in organic solvents, low acid value, good adhesion, water resistance and resistance. chemical properties, and is characterized by good viscosity regulation and thermal stability. Therefore, petroleum resins can comple...