10# flake 110 softening point C9 petroleum resin

Comprehensive analysis of 10# flake 110 softening point C9 petroleum resin

I. Basic parameters and characteristics

Appearance: flake solid, chromaticity ≤10# (light yellow to light brown), high transparency, good surface gloss.

Softening point: 110℃ (measured by ring and ball method), wide melting temperature range (80-150℃), excellent thermal stability.

Molecular properties: average molecular weight 2000-5000, no polar group, outstanding acid and alkali resistance, water resistance, soluble in organic solvents such as toluene and acetone.

II. Core application scenarios

Rubber viscosity enhancement and reinforcement

As a viscosity enhancer for rubber products such as SBR and BR, it improves the bonding strength between rubber and cord/filler, and improves tear resistance and wear resistance.

In radial tire carcass rubber, it enhances the bonding strength between steel cord and rubber.

Adhesives and sealing materials

Used in systems such as SBS universal adhesive and pressure-sensitive adhesive to balance viscosity and cost, and improve water resistance and chemical corrosion resistance.

Coatings and inks ‌

Added to high-gloss paints, it can enhance the adhesion and weather resistance of the paint film. In inks, it can accelerate drying and improve printing clarity.

3. Selection recommendations ‌

Usage recommendations ‌: ‌The addition amount should be controlled at 1-5% of the total weight of the rubber. Excessive use may affect the vulcanization performance. Preferably select models with a bromine value of ≤0.5% and an ash content of ≤0.1% to ensure the purity of the colloid. 4. Performance comparison and alternatives ‌

Compared with C5 resin ‌: C9 resin has lower polarity and better compatibility with non-polar rubbers such as SBR, but its transparency is slightly inferior to that of C5 resin.

Alternatives ‌: DCPD resin can be compounded when higher weather resistance is required, and it can be mixed with coumarone resin when costs need to be reduced.

This model of C9 petroleum resin has a stable market demand in the fields of rubber and adhesives due to its high softening point and low cost.