| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesion assistant, an RFL adhesive agent treatment liquid and a rubber composition-fiber composite for improving initial adhesive force between a rubber composition and a fiber, adhesive force after heat thermal deterioration and adhesive force after thermal flexural fatigue.SOLUTION: There is provided an adhesion assistant containing a soap-free vinyl chloride-based resin latex containing a copolymer containing vinyl chloride and 0.2 to 6 wt.% of epoxy group-containing vinyl, no surfactant and having an average particle diameter of 1.0 μm or less. There is also provided an RFL adhesive agent treatment liquid containing an RFL liquid containing a solution of the adhesion assistant, resorcin and formalin condensate, and further rubber latex, and a rubber composition-fiber composite obtained by impregnating the RFL adhesive agent treatment liquid into a fiber and the vulcanizing the treated fiber obtained by drying the impregnated fiber and a rubber composition. |
