Cobalt salt adhesive in use for bonding rubber - metal in high tenacity, and preparation

Abstract

This invention discloses modification of Co salt binder for high-strength rubber-metal binding. The Co salt binder comprises components A and B. Component A comprises: Co salt binder 0.5-8 wt.%, rubber 35-60 wt.%, anti-aging agent 0.5-3 wt.%, plasticizer 0.5-15 wt.%, reinforcer 5-50 wt.%, HRH binder 0-6 wt.% and accelerator 0-2 wt.%. Component B comprises curing agent, and is 4-12 wt. % of component A. The modified Co salt binder retains its previous excellent properties, while can be used by coating like Chemlok binder. The modified Co salt binder can be widely used for high-strength binding of majority rubbers and metals. Besides, the modified Co salt binder has such advantages as high heat resistance (with higher than 95% binding efficiency above 100 deg.C), and low cost (30% lower than Chemlok binder), and can be used in middle- and small-scale rubber industries as well as retreading of meridian tires.

Description

technical field

[0001] The invention relates to the improvement of the cobalt salt adhesive used for high-strength bonding of rubber and metal skeleton materials. Background technique

[0002] In the rubber product industry such as steel radial tires, steel wire reinforced conveyor belts, and steel braided rubber hoses, high-strength bonding of elastomers such as rubber and metal skeleton materials is required. In order to effectively ensure the high-strength adhesive performance of rubber and metal skeleton, as well as high anti-aging, heat and oxygen resistance, heat and humidity resistance, and salt water corrosion resistance, the prior art usually uses a direct-addition cobalt salt adhesive. Add organic acid cobalt salts such as cobalt naphthenate, cobalt stearate, cobalt oleate, cobalt linoleate, cobalt citronellate and cobalt maleate as described in Chinese patent CN200410001668.4. This type of adhesive is directly added to the rubber compound and kneaded in an intern...

Examples

Embodiment A

[0023] Embodiment A: Preparation of component A, according to the formula (Table 1) of the embodiment, and according to the rubber processing, the raw materials are added to the open mill and mixed, mixed while adding, fully mixed, rolled into a thick sheet, and parked for 16 hours for later use , and then pressed into thin slices, made into a suspension by stirring, shearing, pulverizing or colloidal grinding, soaked in a solvent to make a slurry, and filtered to obtain component A; according to the formula of component B (Table 2), vulcanizing agent powder was obtained material.

[0024] When using, add component B into slurry A according to Table 3 and mix thoroughly, and dilute with or without solvent according to the method of use.

Embodiment B

[0025] Example B: If the skeleton is bare steel, prepare sodium polysulfide C component into a 5-30wt% aqueous solution before use, spray it on the bare steel surface, and then spray or rinse the adhesive in Example A after drying.

[0026]

[0027] Explanation: The present invention can also use other cobalt salt adhesives, and other types of rubber, anti-aging agents, accelerators, reinforcing agents, plasticizers, and vulcanizing agents.

[0028] product name

[0029] recipe number

technical field

[0001] The invention relates to the improvement of the cobalt salt adhesive used for high-strength bonding of rubber and metal skeleton materials. Background technique

[0002] In the rubber product industry such as steel radial tires, steel wire reinforced conveyor belts, and steel braided rubber hoses, high-strength bonding of elastomers such as rubber and metal skeleton materials is required. In order to effectively ensure the high-strength adhesive performance of rubber and metal skeleton, as well as high anti-aging, heat and oxygen resistance, heat and humidity resistance, and salt water corrosion resistance, the prior art usually uses a direct-addition cobalt salt adhesive. Add organic acid cobalt salts such as cobalt naphthenate, cobalt stearate, cobalt oleate, cobalt linoleate, cobalt citronellate and cobalt maleate as described in Chinese patent CN200410001668.4. This type of adhesive is directly added to the rubber compound and kneaded in an intern...

Examples

Embodiment A

[0023] Embodiment A: Preparation of component A, according to the formula (Table 1) of the embodiment, and according to the rubber processing, the raw materials are added to the open mill and mixed, mixed while adding, fully mixed, rolled into a thick sheet, and parked for 16 hours for later use , and then pressed into thin slices, made into a suspension by stirring, shearing, pulverizing or colloidal grinding, soaked in a solvent to make a slurry, and filtered to obtain component A; according to the formula of component B (Table 2), vulcanizing agent powder was obtained material.

[0024] When using, add component B into slurry A according to Table 3 and mix thoroughly, and dilute with or without solvent according to the method of use.

Embodiment B

[0025] Example B: If the skeleton is bare steel, prepare sodium polysulfide C component into a 5-30wt% aqueous solution before use, spray it on the bare steel surface, and then spray or rinse the adhesive in Example A after drying.

[0026]

[0027] Explanation: The present invention can also use other cobalt salt adhesives, and other types of rubber, anti-aging agents, accelerators, reinforcing agents, plasticizers, and vulcanizing agents.

[0028] product name

[0029] recipe number