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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 latex products and the pungent smell of nitrile latex and its products have affected their promotion and application.

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 1

[0081]After feeding nitrogen to the bottom of the polymerization kettle for 15 minutes, add 110 parts of deionized water to the polymerization kettle, then add all diethylaminetetraacetic acid (EDTA), sodium dodecylbenzene sulfonate (SBLS), dodecylbenzene in Table 1 Sodium Alkyl Sulfate (SDS), Dispersant (MF), Tert-Dodecyl Mercaptan (DM), Sodium Pyrophosphate, NaHCO3, Sculpture White Powder (SFS) are stirred and dissolved to make water 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 ) was stirred and dissolved to form an aqueous phase.

[0082] Control the reaction temperature from 10°C to 30°C, and perform the first-stage dropwise addition. The first-stage dropwise addition of isoprene monomer (IP) and benzamide peroxide (BPO) is 5 wt. %, synchronously drop ferrous sulfate (FeSO 4 ) amount of its total amount of 5wt%, after the first stage dropwise, reacted 3h. After ...

example 2

[0084] After feeding nitrogen to the bottom of the polymerization kettle for 15 minutes, add 110 parts of deionized water to the polymerization kettle, then add all diethylaminetetraacetic acid (EDTA), sodium dodecylbenzene sulfonate (SBLS), dodecylbenzene in Table 1 Sodium alkyl sulfate (SDS), dispersant (MF), tertiary dodecyl mercaptan (DM), sodium pyrophosphate, NaHCO3, carved white powder (SFS), stirring and dissolving to form a water phase, isoprene monomer (IP ) and benzamide peroxide (BPO) were stirred and dissolved to form an oil phase; 50 parts of deionized water and ferrous sulfate (FeSO 4 ) was stirred and dissolved to form an aqueous phase.

[0085] Control the reaction temperature at 10°C to 30°C, and perform the first-stage dropwise addition. In the first stage, the mixing amount of isoprene monomer (IP) and benzamide peroxide (BPO) is 8wt of its total mixing amount %, synchronously drop ferrous sulfate (FeSO 4 ) amount of its total amount of 8wt%, after the fi...

example 3

[0087] After feeding nitrogen to the bottom of the polymerization kettle for 15 minutes, add 110 parts of deionized water to the polymerization kettle, then add all the diethylaminetetraacetic acid (EDTA), sodium dodecyl sulfate (SDS), dodecyl Sodium benzenesulfonate, dispersant (MF), tert-dodecyl mercaptan (DM), sodium pyrophosphate, NaHCO3, Sculpture powder (SFS), stirred and dissolved to form a water phase, isoprene monomer (IP) and Benzamide oxide (BPO) was stirred and dissolved to form an oil phase; 50 parts of deionized water and ferrous sulfate (FeSO 4 ) was stirred and dissolved to form an aqueous phase.

[0088] Control the reaction temperature from 10°C to 30°C, and perform the first-stage dropwise addition. The first-stage dropwise addition of isoprene monomer (IP) and benzamide peroxide (BPO) is 12wt of its total amount. %, synchronously drop ferrous sulfate (FeSO 4 ) amount of its total amount of 12wt%, after the first stage dropwise, reacted 1h. After the firs...

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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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