Phenolic Resin
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P-Tert-Octyl Phenol-Formaldehyde Tachifying Resins
The alkyl is on the para-position of phenol hydroxyl. The resin molecule is ended up with a p-alkyl. Under vulcanizing temperature, the molecule doesn’t come up to a chemical reaction and a hydrocarbon bond is formed between resin and rubber surface. Then P-Tert-Octyl Phenol-Formaldehyde Resins have a better compatibility with many rubber and oil extended material scorch time, improve processability and handling security. It is also easily soluble and dust free.
Phenolic Resin
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P-Tert-Butyl Phenol-Formaldehyde Tachifying Resins
The resin doesn’t reactive under vulcanizing temperature. It has good tackify performance and good compatibility with many kinds of rubber. It can act as rubber adhesive improving agent and perform better specialized on SBR, NBR. It can be applied on tire rubber product need high viscosity. It is also easily soluble and dust free.
Phenolic Resin
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Reinforcing Phenolic Resins:
Reinforcing phenolic resins include phenolic resins and modified phenolic resin. Modified resin has better compatibility with the rubber. Reinforcing resin can improve viscosity and plasticity, and can soften rubber before vulcanized, thus, it can improve processability. When vulcanized with methylene donator such as HEXA, it can form a three-dimensional network structure to penetrate into the rubbers. It can improve hardness, toughness, tearing resistance and has good reinforcing performance.
Phenolic Resin
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Resorcinol Formaldehyde Bonding Resins:
Belt compound is the main stress position of PCR tire. In the belt compound formulation, the bonding system is the key factor affect force between sizing material and all steel cord. Due to the low free resorcinol content, the resin can improve operating environment influenced by the sublimation of resorcinol in the mixing process, protect the health of operator and solve the resorcinol blooming problem on the material surface. Stress at definite elongation of compound decreases. Tensile and adhesive strength increases. Good bonding performance makes the adhesive strength between the material and fiber or wire much higher. Thus it can improve the durability of the tire.