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Acid and alkali resistant rubber boot vamp rubber compound and preparation method thereof

A technology of compound rubber and acid and alkali resistance, which is applied in the fields of application, clothing, footwear, etc., can solve the problems of large drop in tearing strength, loss of wearing function, and drop in physical and chemical indicators, so as to improve flex resistance and improve Effects of chemical resistance, improvement of elasticity and flex resistance

Active Publication Date: 2013-10-02
JIHUA 3539 SHOE MAKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the physical and chemical indicators of ordinary acid and alkali-resistant work boots available in the market have dropped greatly after being soaked in chemical agents, so the service life of this type of work boots is generally low, and their average service life is within 4 months.
Mainly reflected in the large change in weight of the boot surface after being soaked in chemical agents, poor acid and alkali resistance, elongation at break, and large drop in tear strength, resulting in the boot surface being easily broken by hard objects or broken after flexing and aging. Cause rubber boots to leak water and directly lose the wearing function

Method used

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  • Acid and alkali resistant rubber boot vamp rubber compound and preparation method thereof
  • Acid and alkali resistant rubber boot vamp rubber compound and preparation method thereof
  • Acid and alkali resistant rubber boot vamp rubber compound and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0028] The preparation method of the acid-alkali-resistant rubber boot vamp rubber of the present embodiment comprises the following steps:

[0029] a. Gum breaking: breaking the domestic No. 1 tobacco rubber and styrene-butadiene rubber into domestic No. 1 smoke rubber rubber filaments and styrene-butadiene rubber blocks respectively by weight;

[0030] b. Molding: put the domestic No. 1 smoked rubber filament into the open mill with a roll temperature of 40°C-50°C and a roll distance of 0.5-1.0mm. After the first thin pass plasticizing, put the roll distance into 5mm-8mm The open mill is covered with roller plastication, and put into the styrene-butadiene rubber block to make a mixed rubber roll, and then put the made mixed rubber roll into an open mixer with a roll distance of 0.5 ~ 1.0 mm and pass through the second thinning process. Put into an open mill with a roller distance of 5mm-8mm to cover the rollers for masticating after plasticizing, take out the test sample, an...

Embodiment 1

[0039] For the acid and alkali-resistant rubber boots vamp compound of this embodiment, the compound rubber raw material includes the following components by weight: 85 parts of domestic No. 1 tobacco rubber, 15 parts of styrene-butadiene rubber, 2.5 parts of accelerator, 2.5 parts of sulfur, active 2.2 parts of zinc oxide, 0.6 parts of stearic acid, 3.2 parts of anti-aging agent, 40 parts of high wear-resistant carbon black, 15 parts of general-purpose carbon black, 20 parts of barium sulfate, 11 parts of softener, and 2 parts of RX-80 resin.

[0040] In this embodiment, the accelerator is a mixture of accelerator DM and accelerator D, wherein the amount of accelerator DM is 4 times that of accelerator D.

[0041] In this embodiment, the anti-aging agent is a mixture of anti-aging agent MB, anti-aging agent 4010NA and paraffin, and the weight ratio of the anti-aging agent MB, anti-aging agent 4010NA and paraffin is 1:1.5:1.5.

[0042] In this embodiment, the softening agent i...

Embodiment 2

[0061] The mixing rubber raw materials include the following components by weight: 80 parts of domestic No. 1 tobacco rubber, 20 parts of styrene-butadiene rubber, 2.5 parts of accelerator, 2.5 parts of sulfur, 2 parts of active zinc oxide, 0.8 parts of stearic acid, 2.6 parts of anti-aging agent parts, 30.5 parts of high wear-resistant carbon black, 15 parts of general carbon black, 15 parts of barium sulfate, 9 parts of softener, and 1 part of RX-80 resin.

[0062] In this embodiment, the accelerator is a mixture of accelerator DM and accelerator D, wherein the amount of accelerator DM is 4.5 times that of accelerator D.

[0063] In this embodiment, the anti-aging agent is a mixture of anti-aging agent MB, anti-aging agent 4010NA and paraffin, and the weight ratio of the anti-aging agent MB, anti-aging agent 4010NA and paraffin is 1:1.5:1.5.

[0064] In this embodiment, the softening agent is liquid coumarone and pine tar, wherein the amount of liquid coumarone is 2.5 times ...

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Abstract

The invention discloses an acid and alkali resistant rubber boot vamp rubber compound comprising Chinese No. 1 smoked sheet, butadiene styrene rubber, an accelerant, sulfur, active zinc oxide, stearic acid, an anti-aging agent, high-abrasion furnace black, general carbon black, barium sulfate, a softening agent and a tackifier. A sizing material of the rubber compound prepared by the preparation method has excellent comprehensive indexes such as high strength, good elongation and good flexing resistance; and the sizing material has small physical and mechanical properties on the basis of meeting the acid-base resistance property, and can meet special requirements of an operating environment. The non-split flexing resistance test of finished-product protective boot made of the mixing rubber in a laboratory shows that the flex times of the protective boots is greater than or equal to 3,200,000, and much higher than that of the common acid and alkali resistant rubber boots sold in the market at present while changes of the hardness, the tensile strength and the elongation at rupture of the sizing material soaked by a chemical agent, and the weigh change are small at the same time; and the acid-base resistance property and the resistance to chemical corrosion of the sizing material are good; the sizing material can effectively resist a poor operating condition of a working space on the basis of meeting the acid-base resistance property; and the service life of the finished-product protective boots made of the sizing material can be up to over six months and is prolonged by over 50% in comparison with that of the ordinary commercial product sold in the market under the identical condition.

Description

technical field [0001] The invention relates to a mixed rubber, in particular to an acid and alkali-resistant rubber boots upper mixed rubber used for producing heat vulcanized and molded all-rubber protective boots by lamination and a preparation method thereof. Background technique [0002] In recent years, with the continuous development of industries such as food processing, chemical processing, and chemical cleaning, the demand for labor protection products that meet the requirements of the above-mentioned working environment has continued to increase, prompting the work boots worn by workers in the above-mentioned industries to gradually begin to change from ordinary rubber boots Or the transformation of plastic boots to special protective boots. Therefore, the protective boots that meet the requirements are required to have acid and alkali resistance and chemical corrosion resistance in addition to ordinary wearing functions. The upper of rubber boots is affected by ...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/06C08K13/02C08K3/06C08K3/22C08K5/09C08K3/04C08K3/30A43B1/10
Inventor 江卫东毛小红徐兴华程卓
Owner JIHUA 3539 SHOE MAKING
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