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Heat-vulcanized water-soluble adhesive of unvulcanized rubber and vulcanized rubber and preparation method of heat-vulcanized water-soluble adhesive

A water-soluble adhesive and vulcanized rubber technology, applied in the direction of natural rubber adhesives, adhesives, adhesive types, etc., can solve the problems of rubber shoe soles, low final adhesive strength, and high toxicity

Inactive Publication Date: 2020-12-25
JIHUA 3537 SHOE MAKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based glue has the disadvantages of difficult processing, high energy consumption, high cost, long processing cycle, and high toxicity. At the same time, it also has quality defects such as low initial adhesive strength and low final adhesive strength, which may easily cause rubber shoes to fall apart during the production process. Quality problems such as gaps in the mouth, soles of rubber shoes, and delamination of rubber shoe skirts lead to low product qualification rates

Method used

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  • Heat-vulcanized water-soluble adhesive of unvulcanized rubber and vulcanized rubber and preparation method of heat-vulcanized water-soluble adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Embodiment 1 raw material: natural latex 100kg, soft water 11kg, rubber compounding agent (vulcanizing agent: sulfur 0.6kg, vulcanization accelerator M 0.4kg, nano zinc oxide 0.4kg, diffusion agent 0.1kg, anhydride casein 0.1kg, borax 0.02kg , stabilizer H 2kg), ammonia water 1kg, potassium hydroxide 0.3kg, sodium carboxymethyl cellulose 0.2kg, anti-aging agent KY-405L 0.3kg, defoamer 0.1kg, antifungal agent 0.004kg

[0078] Preparation:

[0079] (1) Preparation of ball milling liquid: dissolve potassium hydroxide with 3.2kg of soft water, then add sulfur, vulcanization accelerator M, zinc oxide, anti-aging agent, defoamer, diffusing agent, casein anhydride and borax in sequence, then add 3.2 kg of soft water, stirred evenly, and ball milled in a sealed ball mill tank for 14 hours to obtain a ball mill fluid. The total weight of ceramic balls in the ball mill tank is 8 kg, of which: the weight of ceramic balls with a diameter of 20-40mm is 6 kg, and a diameter of 10-15m...

Embodiment 2

[0085] Embodiment 2 raw materials: natural latex 100kg, soft water 12kg, rubber compounding agent (vulcanizing agent (sulfur) 0.4kg, vulcanization accelerator M 0.3kg, nano zinc oxide 0.3kg, diffusion agent 0.3kg, casein anhydride 0.2kg, borax 0.02 kg, stabilizer H1kg), ammonia water 0.5kg, potassium hydroxide 0.2kg

[0086] Preparation:

[0087] (1) Preparation of ball milling fluid: Dissolve potassium hydroxide with 2.8kg of soft water, then add vulcanizing agent, vulcanization accelerator, nano-zinc oxide, diffusing agent, anhydride casein and borax in turn, then add 2.8kg of soft water, and stir evenly , sealed ball milling in the ball mill tank for 13 hours to get the ball mill liquid, the total weight of the ceramic balls in the ball mill tank is 8 kg, wherein: the weight of the ceramic balls with a diameter of 20-40mm is 6 kg, and the weight of the ceramic balls with a diameter of 10-15mm is 2 kg; use up the ball milling liquid within one hour after leaving the tank, p...

Embodiment 3

[0090] Embodiment 3 raw materials: natural latex 100kg, soft water 12kg, rubber compounding agent (vulcanizing agent 0.7kg, vulcanization accelerator 0.6kg, nano zinc oxide 0.6kg, diffusion agent 0.1kg, anhydride casein 0.1kg, borax 0.03kg, stabilizer 1kg), ammonia 0.8kg and potassium hydroxide 0.5kg, sodium carboxymethyl cellulose 0.3kg.

[0091] (1) Preparation of ball mill liquid: dissolve potassium hydroxide with 40% soft water, then add vulcanizing agent, vulcanization accelerator, nano-zinc oxide, diffusing agent, anhydride casein and borax in turn, then add 40% soft water, and stir evenly , sealed ball milling in the ball milling tank for 12 hours to get the ball milling liquid, the total weight of the ceramic balls in the ball milling tank is 8 kg, wherein: the weight of the ceramic balls with a diameter of 20-40mm is 6 kg, and the weight of the ceramic balls with a diameter of 10-15mm is 2 kg; use up the ball milling liquid within one hour after leaving the tank, pour...

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Abstract

The invention provides a heat-vulcanized water-soluble adhesive of unvulcanized rubber and vulcanized rubber and a preparation method of the heat-vulcanized water-soluble adhesive. The heat-vulcanizedwater-soluble adhesive is mainly prepared from natural latex, soft water, a vulcanizing agent, a vulcanization accelerator, nano zinc oxide, a dispersing agent, anhydride casein, borax, a stabilizer,ammonia water and potassium hydroxide. In order to improve the performance of the heat-vulcanized water-soluble adhesive of the unvulcanized rubber and the vulcanized rubber, sodium carboxymethyl cellulose, an anti-aging agent, a defoaming agent and a mildew preventive can also be added, and the obtained heat-vulcanized water-soluble adhesive of the unvulcanized rubber and the vulcanized rubber is an environment-friendly bonding material for shoes. The adhesive has the processing advantages of low energy consumption, no toxicity, excellent process performance, simplicity in operation and thelike in the manufacturing process; the deterioration resistance of the adhesive is enhanced; the storage stable period of slurry is greatly prolonged; the internal performance of the adhesive is improved; the requirements of rubber shoe foxing strips on high adhesive strength of the secondary vulcanized soles of rubber shoes are fundamentally met; the technical problem of bonding adhesive removalis solved, and potential safety hazards of spontaneous combustion in a rubber shoe manufacturing process are eliminated.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a thermally vulcanized water-soluble adhesive of unvulcanized rubber and vulcanized rubber and a preparation method thereof. Background technique [0002] One type of rubber shoe adhesive is used for the secondary vulcanization of rubber soles to bond the rubber shoes skirt and the semi-finished product of the sole, so that the rubber shoes skirt film and the sole form a firm whole. The main indicator for judging the performance of the adhesive is the bonding strength between the rubber shoe skirt film and the sole, and the measured value of the bond strength between the rubber shoe skirt film and the sole is often used to indicate the adhesive performance of the adhesive on the rubber shoes. [0003] Under normal circumstances, the adhesive mortar for the secondary vulcanization bottom of rubber shoes and the enclosure is a solvent-based mortar with rubber compound as the solu...

Claims

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Application Information

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IPC IPC(8): C09J107/02C09J11/04C09J11/08
CPCC08K2003/2296C08K2003/387C08K2201/011C08L2205/03C09J11/04C09J11/08C09J107/02C08L89/005C08L1/286C08K13/02C08K3/22C08K3/38
Inventor 晋齐怀陈松雄周川泉田吉张世林
Owner JIHUA 3537 SHOE MAKING
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