Polyisoprene aqueous emulsion and method for preparing glove and related products

A polyisoprene water-based, polyisoprene technology, used in gloves, applications, clothing, etc., to achieve the effects of stable emulsion, less gel precipitation, and easy demolding

Inactive Publication Date: 2010-09-22
SHANGHAI SHENGDA MEDICAL HEALTH STOCK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, chloroprene and nitrile latex products have been industrialized, but the recycling of chloroprene lat

Method used

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  • Polyisoprene aqueous emulsion and method for preparing glove and related products
  • Polyisoprene aqueous emulsion and method for preparing glove and related products
  • Polyisoprene aqueous emulsion and method for preparing glove and related products

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0080] Example 1

[0081] After blowing nitrogen to the bottom of the polymerization vessel for 15 minutes, add 110 parts of deionized water to the polymerization vessel, and then add all the diethylamine tetraacetic acid (EDTA), sodium dodecylbenzene sulfonate (SBLS), and twelve Sodium alkyl sulfate (SDS), dispersant (MF), tert-dodecanethiol (DM), sodium pyrophosphate, NaHCO3, and white powder (SFS) are stirred and dissolved to form an aqueous phase, isoprene monomer (IP) Stir and dissolve with benzamide peroxide (BPO) to form an oil phase; 50 parts of deionized water and ferrous sulfate (FeSO 4 ) Stir and dissolve to form an aqueous phase.

[0082] Control the reaction temperature to 10℃~30℃, and carry out the first stage of dripping. In the first stage, the mixing amount of isoprene monomer (IP) and benzamide peroxide (BPO) is 5wt of the total mixing amount. %, adding ferrous sulfate (FeSO 4 The amount of) is 5wt% of the total amount. After the dripping in the first stage is co...

Example Embodiment

[0083] Example 2

[0084] After blowing nitrogen to the bottom of the polymerization vessel for 15 minutes, add 110 parts of deionized water to the polymerization vessel, and then add all the diethylamine tetraacetic acid (EDTA), sodium dodecylbenzene sulfonate (SBLS), and twelve Sodium alkyl sulfate (SDS), dispersant (MF), tert-dodecanethiol (DM), sodium pyrophosphate, NaHCO3, sulphur powder (SFS), stir and dissolve to form an aqueous phase, isoprene monomer (IP ) And benzamide peroxide (BPO) to form an oil phase by stirring and dissolving; 50 parts of deionized water and ferrous sulfate (FeSO 4 ) Stir and dissolve to form an aqueous phase.

[0085] Control the reaction temperature to 10℃~30℃, and carry out the first stage of dripping. In the first stage, the mixing amount of isoprene monomer (IP) and benzamide peroxide (BPO) is 8wt of the total mixing amount. %, adding ferrous sulfate (FeSO 4 The amount of) is 8wt% of the total amount. After the dripping in the first stage is co...

Example Embodiment

[0086] Example 3

[0087] After blowing nitrogen to the bottom of the polymerization tank for 15 minutes, add 110 parts of deionized water to the polymerization tank, and then add all the diethylamine tetraacetic acid (EDTA), sodium dodecyl sulfate (SDS) and dodecyl Sodium benzene sulfonate, dispersant (MF), tert-dodecanethiol (DM), sodium pyrophosphate, NaHCO3, white powder (SFS), stir and dissolve to form an aqueous phase, isoprene monomer (IP) and peroxide Oxidized benzamide (BPO) is stirred and dissolved into an oil phase; 50 parts of deionized water and ferrous sulfate (FeSO 4 ) Stir and dissolve to form an aqueous phase.

[0088] The reaction temperature is controlled at 10℃~30℃, and the first stage of dripping is carried out. In the first stage, the mixing amount of isoprene monomer (IP) and benzamide peroxide (BPO) is 12wt of the total mixing amount. %, adding ferrous sulfate (FeSO 4 The amount of) is 12wt% of the total. After the dripping in the first stage is completed, ...

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Abstract

The invention relates to a polyisoprene aqueous emulsion and a method for preparing a glove and related products thereof. The polyisoprene aqueous emulsion is a stable polyisoprene rubber emulsion which is obtained by performing radical emulsion polymerization under normal pressure and the initiation of an initiator by taking isoprene as a monomer, taking an emulsifying agent and a dispersant as an emulsification system and adopting a redox initiation system, wherein an oil phase obtained after the isoprene and the initiator are mixed and a reducing agent are added dropwise together in a sectional dropwise adding way. The polymerization conversion rate of the polyisoprene aqueous emulsion of the invention is increased to be over 97.5 percent from original 78 percent; and a prepared polyisoprene glove and related thin emulsion products have the characteristics of high strength, high extensibility, good handfeel and no anaphylaxis to human bodies, and can meet the requirements of different purposes.

Description

Technical field: [0001] The present invention relates to a kind of polyisoprene aqueous emulsion to prepare the method for gloves and related products, specifically isoprene is obtained polyisoprene emulsion by emulsion polymerization, and then this polyisoprene emulsion is used Methods of making gloves and related products. It belongs to the fields of polymer chemistry, polymer physics, colloid chemistry, surface and interface chemistry, rubber physics and chemistry. Background technique: [0002] In recent years, synthetic latex has developed rapidly, and its main products are styrene-butadiene latex, neoprene latex, nitrile latex, acrylate latex, etc. Synthetic latex is usually produced by emulsion polymerization, using water as the medium, which represents the development direction of the conversion from solvent-based products to water-based products, and has been widely used in rubber, coatings, adhesives and other fields. [0003] Isoprene is an important unsaturated...

Claims

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Application Information

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IPC IPC(8): C08F136/08C08F2/24A41D19/00B29C41/14C08C1/14
Inventor 苏宗球
Owner SHANGHAI SHENGDA MEDICAL HEALTH STOCK
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