Bio-based rubber sole as well as preparation method and mold thereof

A rubber sole and bio-based technology, applied to shoe soles, other household appliances, footwear, etc., can solve the problems of easy precipitation of soybean oil and excessive carbon emissions, and achieve the effect of improving mechanical properties and increasing the degree of crosslinking

Active Publication Date: 2021-09-28
MAOTAI FUJIAN SOLES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a bio-based rubber sole and its preparation method and mold, which solves the technical problems of excessive carbon emissions and easy precipitation of soybean oil in the sole in the prior ar...

Method used

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  • Bio-based rubber sole as well as preparation method and mold thereof
  • Bio-based rubber sole as well as preparation method and mold thereof
  • Bio-based rubber sole as well as preparation method and mold thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A rubber negative mold consists of an upper template and a lower template. refer to figure 1 , the upper template has an upper rubber base area 21 , an upper burr area 22 , and a first groove area 23 . The upper rubber base area 21 is connected to the upper burr area 22 through the first groove area 23 . refer to figure 2 , image 3 , the lower template has a lower rubber base area 11, a lower burr area 12, a second groove area 13, the bottom groove angle of the second groove area 13 is 60 degrees, and the edge of the lower rubber base area 11 is connected with a second groove area 13. The side of the second groove area 13 facing away from the lower rubber base area 11 is connected to the lower burr area 12 .

[0047] When the upper template is sealed with the lower template, the upper rubber backsheet area 21 and the lower rubber backsheet area 11 overlap, and the upper burr area 22 overlaps with the lower burr area 12, refer to Figure 4 , from the vertical direc...

Embodiment 2

[0053] A preparation method of bio-based rubber sole, comprising the steps:

[0054] Step (1): the preparation method of bio-based solution-polymerized styrene-butadiene rubber: firstly, put 100 parts of carboxylated solution-polymerized styrene-butadiene rubber into an internal mixer, with a rotating speed of 40-50 r / min, and banbury for two minutes; then put in zinc oxide 3 parts, 1 part of stearic acid, heat is generated by the friction of the system, and the temperature in the internal mixer gradually rises; when the temperature in the internal mixer rises to 85 °C, 27 parts of epoxy soybean oil are added, and the internal mixing is continued for 12 minutes; The obtained mixture is discharged from the internal mixer, transferred to a double-roller mill, rolled out into sheets, and cooled to room temperature to obtain bio-based solution-polymerized styrene-butadiene rubber; wherein, the carboxylated solution-polymerized styrene-butadiene rubber comes from Zhenjiang Chimei Ch...

Embodiment 3

[0060] A preparation method of bio-based rubber sole, comprising the steps:

[0061] Step (1) The preparation method of bio-based solution-polymerized styrene-butadiene rubber: firstly, put 100 parts of carboxylated solution-polymerized styrene-butadiene rubber into an internal mixer, with a rotating speed of 40-50 rpm, and banbury for two minutes; then put in 3 parts of zinc oxide , 1 part of stearic acid, heat is generated by the friction of the system, and the temperature in the internal mixer gradually increases; when the temperature in the internal mixer rises to 85 ℃, add 20 parts of epoxidized soybean oil, and continue to mix for 12 minutes; The obtained mixture is discharged from the internal mixer, transferred to a two-roll open mill, rolled out into sheets, and cooled to room temperature to obtain bio-based solution-polymerized styrene-butadiene rubber. Among them, carboxylated solution-polymerized styrene-butadiene rubber is from Zhenjiang Chimei Chemical Co., Ltd.;...

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Abstract

The invention discloses a bio-based rubber sole. The bio-based rubber sole comprises the following components in parts by weight: 40 parts of bio-based solution polymerized styrene-butadiene rubber, 16 to 24 parts of a bio-based ethylene propylene diene monomer, 38 to 46 parts of natural rubber, 35 to 40 parts of white carbon black, 2.1 to 2.8 parts of a silane coupling agent, 0.7 to 1.1 parts of stearic acid, 0.6 to 0.9 part of an anti-aging agent, 1.9 to 2.5 parts of an active agent, 3.2 to 3.8 parts of zinc oxide, 0.7 to 1.5 parts of polyethylene wax, 1.0 to 1.8 parts of an anti-frosting agent, 0.9 to 1.4 parts of tackifying resin, 1.2 to 1.8 parts of vulcanization accelerator, and 1.9 to 2.3 parts of insoluble sulfur. When the bio-based solution polymerized styrene-butadiene rubber is prepared and polymerized, carboxylated solution polymerized styrene-butadiene rubber, zinc oxide, stearic acid and epoxidized soybean oil are internally mixed in an internal mixer to construct an ester group cross-linked network structure, and the advantage that oil is not separated out is achieved. Besides, during vulcanization molding, ion pairs formed by zinc ions and carboxyl groups in a rubber material can be used as reinforcing points, so a crosslinking degree is improved, and the mechanical property of a bio-based rubber outsole is improved.

Description

technical field [0001] The invention relates to the technical field of sole preparation, in particular to a bio-based rubber sole, a preparation method and a mold thereof. Background technique [0002] At present, we are responding to the national call to reduce carbon emissions and achieve carbon peaks as soon as possible. In the field of shoemaking, it can be done from three aspects, reducing the consumption of resources, using waste as a resource, and turning harmful into harmless. This application starts from reducing the consumption of resources, reducing the consumption of non-renewable petroleum resources, The rubber and plastics currently in use are all extracted from petroleum, ethylene, propylene, butadiene and other monomers, and then polymerized, which consumes a lot of petroleum resources. [0003] In the prior art, soybean oil and epoxidized soybean oil are directly added to rubber materials, and then rubber products are prepared by physical blending, but ther...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L23/16C08L7/00A43B13/04B29D35/12
CPCC08L9/06C08L7/00A43B13/04B29D35/122B29D35/128C08L2205/035C08L23/16
Inventor 卢鑫林志杰许春树丁思博罗显发廖毅彬董明生王燕邱瑞
Owner MAOTAI FUJIAN SOLES CO LTD
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