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High-elasticity butadiene-acrylonitrile latex for condoms and preparation method of high-elasticity butadiene-acrylonitrile latex

A kind of nitrile rubber, high elasticity technology, used in male contraceptives and other directions, to prevent breakage, increase elasticity, and enhance wear resistance.

Inactive Publication Date: 2017-01-11
SHANDONG CHENGTAI CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the structural characteristics of the material itself, the natural latex condom will naturally form micropores with a diameter ranging from several hundred to several thousand nanometers, which is larger than AIDS (maximum diameter: 120nm), hepatitis B (maximum diameter: 42nm), human papilloma ( The head diameter of viruses such as the maximum diameter of 55nm) is tens to hundreds of times larger, and the viruses that cause infection of these diseases and spread some sexually transmitted diseases may spread through micropores

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A high-elastic nitrile latex for condoms, prepared from the following parts by weight (kg) of raw materials: butadiene 100, acrylonitrile 55, methyl succinic acid 8, isoprene 7, calcium chloride 0.7, Potassium carbonate 0.6, potassium hydroxide 0.8, tert-dodecyl mercaptan 1, diallyl terephthalate 3, sodium lauryl sulfate 3, sodium dodecylbenzene sulfonate 2, stannous octoate 3, peroxide Tert-butyl benzoate 1.4, neopentyl glycol phthalic anhydride ester 3, dibutyl phthalate 4, pentaerythritol triacrylate 2, didodecanol ester 4, p-tert-butyl benzoic acid Zinc 2, magnesium stearate 4, isophorone diisocyanate 2, ethylene-vinyl acetate copolymer 6, styrene butadiene rubber 13, methyl hydrogen silicone oil 6, deionized water 180, cyclohexanone 8.

[0017] A method for preparing nitrile latex for high-elastic condoms, including the following steps:

[0018] (1) After evacuating the polymerizer, replace it with nitrogen for 2-3 times. After heating to 65-75℃, add deionized water, s...

Embodiment 2

[0022] A high-elastic nitrile latex for condoms, prepared from the following parts by weight (kg) of raw materials: butadiene 115, acrylonitrile 57.5, methyl succinic acid 9, isoprene 8, calcium chloride 0.8, Potassium carbonate 0.7, potassium hydroxide 1.1, tert-dodecyl mercaptan 1.5, diallyl terephthalate 4, sodium lauryl sulfate 4.5, sodium dodecylbenzene sulfonate 2.5, stannous octoate 3.5, peroxide Tert-butyl benzoate 1.6, neopentyl glycol phthalic anhydride ester 4, dibutyl phthalate 5, pentaerythritol triacrylate 3, didodecanol ester 5, hydrated tribasic lead sulfate 3. Magnesium stearate 5, isophorone diisocyanate 2.5, ethylene-vinyl acetate copolymer 7, styrene butadiene rubber 14, methyl hydrogen silicone oil 7, deionized water 200, cyclohexanone 8-10.

[0023] The preparation method is the same as in Example 1.

Embodiment 3

[0025] A high-elastic nitrile latex for condoms, prepared from the following parts by weight (kg) of raw materials: butadiene 110, acrylonitrile 60, methyl succinic acid 10, isoprene 9, calcium chloride 0.9, Potassium carbonate 0.8, potassium hydroxide 1.4, tert-dodecyl mercaptan 2, diallyl terephthalate 5, sodium lauryl sulfate 6, sodium dodecylbenzene sulfonate 3, stannous octoate 4, peroxide Tert-butyl benzoate 1.8, neopentyl glycol phthalic anhydride ester 5, dibutyl phthalate 6, pentaerythritol triacrylate 4, didodecanol ester 6, hydrated tribasic lead sulfate 4. Magnesium stearate 6, isophorone diisocyanate 3, ethylene-vinyl acetate copolymer 8, styrene butadiene rubber 15, methyl hydrogen silicone oil 8, deionized water 220, cyclohexanone 10.

[0026] The preparation method is the same as in Example 1.

[0027] The performance test results of the nitrile butadiene rubber latex for high elastic condoms prepared in the above Examples 1-3 are shown in the following table:

[00...

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PUM

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Abstract

The invention discloses high-elasticity butadiene-acrylonitrile latex for condoms and a preparation method of the high-elasticity butadiene-acrylonitrile latex. The butadiene-acrylonitrile latex is prepared from the following raw materials in parts by weight: 100-110 parts of butadiene, 55-60 parts of acrylonitrile, 8-10 parts of methylsuccinic acid, 7-9 parts of isoprene, 0.7-0.9 part of calcium chloride, 0.6-0.8 part of potassium carbonate, 0.8-1.4 parts of potassium hydroxide, 1-2 parts of tert-dodecyl mercaptan, 3-5 parts of diallyl terephthalate, 3-6 parts of sodium laurylsulfate, 2-3 parts of sodium dodecyl benzene sulfonate and the like. The butadiene-acrylonitrile latex for the condoms disclosed by the invention has the characteristic of high strength after film forming, the usage requirements of certain high-strength film products can be met, and the generated butadiene-acrylonitrile film is high in strength, high in wear resistance and easy to disperse and emulsify; moreover, according to the added materials such as an ethylene-vinyl acetate copolymer, butadiene styrene rubber, methyl hydrogen silicone oil and the like, the elasticity of the material is increased, the wear resistance of the material is enhanced, and the condom is prevented from being damaged.

Description

[0001] Invention field [0002] The invention belongs to the field of polymer chemical materials, and specifically relates to a nitrile latex for high-elastic condoms and a preparation method thereof. Background technique [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. After being processed, natural latex has excellent comprehensive properties and is currently the most widely used condom. However, due to the structural characteristics of the material itself, natural latex condoms will naturally form micropores with diameters ranging from hundreds to thousands of nanometers, which is more than AIDS (maximum diameter: 120nm), hepatitis B (maximum diameter 42nm), human papilloma ( The head diameter of viruses such as 55nm (maximum diameter) is tens to hundreds of times larger. Viruses tha...

Claims

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Application Information

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IPC IPC(8): C08F236/12C08F220/44C08F236/08C08F218/18C08F2/38C08F2/22C08L9/04C08L9/06C08L23/08C08L83/05C08K5/12C08K5/103A61F6/04
CPCC08F236/12A61F6/04C08L9/04C08L2203/16C08L2205/035C08F220/44C08F236/08C08F218/18C08F2/38C08F2/22C08L9/06C08L23/0853C08L83/04C08K5/12C08K5/103
Inventor 张国华赵文国李中成
Owner SHANDONG CHENGTAI CHEM IND
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