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Method for preparing high-strength and high-isolation condoms from modified graphene/latex composite material

A composite material, graphene technology, applied in the direction of male contraceptives, coatings, etc., can solve the problems of easy falling off and breakage, poor elasticity, high cost, increase comfort, reduce and inhibit the transmission probability of viruses and microorganisms. Effect

Inactive Publication Date: 2016-01-13
LIAONING LANJING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its disadvantages are: the elasticity is not as good as natural latex condoms, the cost is higher, and it is easy to fall off and break

Method used

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  • Method for preparing high-strength and high-isolation condoms from modified graphene/latex composite material
  • Method for preparing high-strength and high-isolation condoms from modified graphene/latex composite material
  • Method for preparing high-strength and high-isolation condoms from modified graphene/latex composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Adding 200Kg concentration in a clean mixing tank is the natural rubber latex of 60wt%, gradually adding 200Kg concentration under stirring conditions is the graphene aqueous solution after the sulfonation of 0.5wt‰, after adding, then add dispersion stabilizer (such as : sodium lauricate or F108), make the dispersion stabilizer account for about 1wt% to 2wt%, and keep stirring for 1 hour to make it evenly mixed. At this time, adjust the viscosity to about 15 mPa·s. Let the compounded glue stand for about 24 hours to fully mature, then add it to the dipping machine for two dips, and then process and produce it, and finally pass the performance test to get the finished product.

[0062] In order to verify the performance advantages of the new material prepared by the present invention and the condom product, the inventor prepared the batch of graphene / latex prepared in Example 1 according to the national standard GB7544-2009 "Natural Latex Rubber Condom Technical Require...

Embodiment 2

[0073] Adding 200Kg concentration in a clean mixing tank is the natural rubber latex of 35wt%, gradually adding 200Kg concentration under stirring conditions is the graphene aqueous solution after amination of 0.05wt‰, after adding, then add dispersion stabilizer (such as: Sodium lauricate or F108), the dispersion stabilizer accounts for about 0.5wt% to 1wt%, and the stirring is continued for 1 hour to make it evenly mixed, and the viscosity is about 8mPa·s. Let the compounded glue stand for about 24 hours to fully mature, then add it to the dipping machine for three times of dipping, then process and produce, and finally pass the performance test to get the finished product.

Embodiment 3

[0075] Adding 200Kg concentration in a clean mixing tank is the natural rubber latex of 60wt%, gradually adding 200Kg concentration under stirring conditions is the graphene aqueous solution after the carboxylation of 1wt‰, after adding, then add dispersion stabilizer (such as: Sodium silicate or F108), the dispersion stabilizer accounts for about 1wt% to 2wt%, and the stirring is continued for 1 hour to make it evenly mixed, and the viscosity is about 15mPa·s. Let the compounded glue stand for about 24 hours to fully mature, then add it to the dipping machine for two dips, and then process and produce it, and finally pass the performance test to get the finished product.

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Abstract

The invention relates to the fields of composite materials and medical equipment, in particular to a method for preparing high-strength and high-isolation condoms by utilizing a modified graphene / latex composite material. The method comprises the following steps: preparing modified graphene into a stable dispersion liquid, then carrying out direct recombination after latex compounding and prevulcanization curing period, or vulcanization recombination is finished at the same time in the period, and finally a compound rubber emulsion is finally obtained. After the curing of the compound rubber, the condom product is prepared by adopting a mold impregnating method. Compared with existing products, the grapheme compounded condom prepared by the invention has the advantages that the permeance of small-size viruses can be effectively blocked and the performance indexes such as tear resistance, blasting volume and ultimate elongation under same thickness are obviously improved. The method disclosed by the invention has the advantages of scientific principle, obvious characteristics, non-toxicity, innocuity, stable performance, high matching degree with prior art for condom production and the like.

Description

technical field [0001] The invention relates to the field of composite materials and medical devices, in particular to a method for preparing condoms with high strength and high insulation by using modified graphene / latex composite materials. Background technique [0002] As a simple and effective method of physical isolation contraception, condoms are widely used in countries all over the world. The research report shows that: the film of the condom can effectively shield the pathogens of diseases such as venereal diseases and AIDS. Proper use of condoms can significantly reduce the risk of sexually transmitted diseases. At present, the materials used for condoms mainly include: natural latex, polyurethane, and synthetic rubber. [0003] Natural latex (raw rubber, natural rubber) is obtained from cultivated rubber trees. It has good film-forming properties, high wet gel strength, good mechanical properties, high mechanical stability, white color, and good foam stability. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/02C08K9/04C08K3/04B29C41/14A61F6/04
Inventor 郑金木乔素珍张柏华
Owner LIAONING LANJING TECH CO LTD
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