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Method for preparing natural rubber exhaust gasket for forming rubber shoes

A technology of natural rubber and exhaust pads, which is applied in the field of preparation of natural rubber exhaust pads, can solve the problems of affecting product qualification rate, poor bonding of rubber parts, and short service life of gaskets, etc., and achieves low production cost and improved Long service life and good effect

Inactive Publication Date: 2011-01-12
JIHUA 3537 SHOE MAKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In general, the molding gasket of rubber shoes is made of pure silicone rubber. The advantage of this kind of rubber pad is that it has good elasticity and is easy to maintain the original shape of the pattern. The conduction effect is poor, and the adhesion between the rubber parts is often poor after the pressing operation, and the service life of the gasket is not long, which seriously affects the product qualification rate

Method used

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  • Method for preparing natural rubber exhaust gasket for forming rubber shoes
  • Method for preparing natural rubber exhaust gasket for forming rubber shoes
  • Method for preparing natural rubber exhaust gasket for forming rubber shoes

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Embodiment 1 of the present invention: the preparation method of the natural rubber exhaust pad that is used for rubber shoe molding, first prepares the rubber main body of exhaust pad, calculates by weight, 100 parts of 2# standard rubbers are carried out three times on the open rubber mixing machine Duan Botong, prepared a plastic rubber A with a Vickers plasticity of 0.70 to 0.75; it was obtained by mixing a reinforcing filler consisting of 7 parts of light calcium carbonate and 8 parts of precipitated white carbon black with 10 parts of 46# mechanical oil B product; The vulcanization accelerator that is made up of 0.9 part of accelerator CZ, 0.5 part of accelerator DM and 0.1 part of accelerator D and the vulcanization activator that is made up of 12.5 parts of stearic acid and 4 parts of active zinc oxide are mixed to obtain C product; Mix 2 parts of pore-forming agent H and 2 parts of sulfur to obtain product D; roll the plasticized rubber A in an open rubber mixer...

Embodiment 2

[0061] Embodiment 2 of the present invention: the preparation method of the natural rubber exhaust pad that is used for rubber shoe molding, first prepares the rubber main body of exhaust pad, calculates by weight parts, 90 parts of 2# standard rubbers are carried out three times on the open rubber mixing machine Duan Botong, prepared a plastic rubber A with a Vickers plasticity of 0.70 to 0.75; mixed a reinforcing filler consisting of 7 parts of light calcium carbonate and 7 parts of precipitated white carbon black with 8.5 parts of 46# mechanical oil to obtain B product; The vulcanization accelerator that is made up of 0.8 part of accelerator CZ, 0.4 part of accelerator DM and 0.1 part of accelerator D and the vulcanization active agent that is made up of 8.5 parts of stearic acid and 3.5 parts of active zinc oxide are mixed to obtain C product; Mix 1.9 parts of pore-forming agent H and 1.8 parts of sulfur to obtain product D; roll the plasticized rubber A in an open rubber m...

Embodiment 3

[0062] Embodiment 3 of the present invention: the preparation method of the natural rubber exhaust pad that is used for rubber shoes molding, first prepares the rubber main body of exhaust pad, calculates by weight, 110 parts of 2# standard rubbers are carried out three times on the open rubber mixing machine Duan Botong, prepared a plastic rubber A with a Vickers plasticity of 0.70-0.75; mixed a reinforcing filler consisting of 8 parts of light calcium carbonate and 10 parts of precipitated white carbon black with 12 parts of 46# mechanical oil to obtain Product B; the vulcanization accelerator made up of 1 part of accelerator CZ, 0.6 part of accelerator DM and 0.2 part of accelerator D and the vulcanization activator composed of 12 parts of stearic acid and 6 parts of active zinc oxide are mixed to obtain product C; 2.1 parts of pore forming agent H and 12.3 parts of sulfur are mixed to obtain product D; the plasticized rubber A is rolled in an open rubber mixer at a temperat...

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Abstract

The invention discloses a method for preparing a natural rubber exhaust gasket for forming rubber shoes. The method comprises the following steps of: vulcanizing natural rubber to obtain a rubber body of the exhaust gasket; painting a layer of gasoline mucilage on the reverse side of interlock and drying; cutting the interlock and the rubber body of the exhaust gasket according to the shape requirements of the rubber gasket, placing the rubber body of the exhaust gasket on the side of the interlock painted with the gasoline mucilage, putting in a module and boiling in water for heating, and taking the rubber exhaust gasket out and cooling to obtain an exhaust gasket blank; and painting room-temperature silicon disulfide rubber on the interlock side of the exhaust gasket blank and standing at room temperature for more than 5 days to obtain the finished product. In the method, the high-elasticity vulcanized sponge rubber of the natural rubber is used as the substrate of the exhaust gasket, the elasticity and flexibility of the rubber body are adjusted by using a boiling and foaming process, the surface of the rubber substrate is enhanced due to the adoption of the high-elasticity interlock, the service life of the exhaust gasket is prolonged and the force transfer effect is improved; moreover, due to the room-temperature silicon disulfide rubber coating on the surface layer, the rubber components of the rubber shoes are effectively isolated and the original shape of the patterns of the rubber components of the rubber shoes is maintained.

Description

technical field [0001] The invention relates to a rubber processing technology, in particular to a preparation method of a natural rubber exhaust pad used for molding rubber shoes. Background technique [0002] Rubber shoe forming exhaust pad refers to a type of rubber that transmits pressure from the pressing device to the rubber part of the rubber shoe during the molding process of the rubber shoe, and uses the rubber part to adhere to the semi-finished shoe upper through pressing without causing the pattern of the rubber part to be deformed or damaged. Pads of various shapes for the main body. [0003] In general, the molding gasket of rubber shoes is made of pure silicone rubber. The advantage of this kind of rubber pad is that it has good elasticity and is easy to maintain the original shape of the pattern. The conduction effect is poor, and the bonding between the rubber parts is often poor after the pressing operation, and the service life of the gasket is not long, ...

Claims

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Application Information

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IPC IPC(8): A43B23/00C08L7/00B32B25/10B32B25/12B32B25/20
Inventor 陈松雄晋齐怀杜江周川泉田杰王永生王春桥彭德彪
Owner JIHUA 3537 SHOE MAKING
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