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

A kind of adhesive and rubber technology, applied in other rubber adhesives, adhesives, adhesive types, etc., can solve the problems of poor heat resistance, high cost of use, poor broad spectrum, etc., to achieve enhanced high-strength bonding Ability, wide adaptability, good heat resistance

Inactive Publication Date: 2007-02-21
严忠庆 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Small and medium-sized rubber product factories currently widely use the coating-type Chemlock series adhesives, which belong to organic compounds and have poor heat resistance. Experiments show that the adhesion rate is only about 15% under the conditions of use above 100°C. , thus limiting the application of this product in a higher temperature environment; secondly, the adhesive has poor broad-spectrum properties, and the use of grades can only be determined after testing according to d

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example A: The preparation of component A, according to the formula of the example (Table 1), according to the rubber processing, the raw materials are added to the open mill and mixed, and mixed while adding, fully mixed, rolled into a thick sheet and parked for 16 hours for later use , and then pressed into thin sheets, stirred, sheared, pulverized or ground by colloid mill to make a suspension liquid, soaked in a solvent, made into a slurry, filtered to obtain component A; according to the formula of component B (Table 2), vulcanizing agent powder was obtained material.

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

Example Embodiment

[0025] Example B: If the skeleton is bare steel, the sodium polysulfide C component is prepared into a 5-30wt% aqueous solution before use, sprayed on the surface of the bare steel, dried and then sprayed or rinsed with the blended adhesive of Example A.

[0026]

[0027] Description: The present invention can also use other cobalt salt binders, as well as other types of rubbers, antioxidants, accelerators, reinforcing agents, plasticizers, and vulcanizing agents.

[0028] Product name

[0029] recipe number

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): C09J121/00
Inventor 严忠庆于立珍陈秀娟黄正春
Owner 严忠庆
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