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A kind of breathable surgical gloves and preparation method thereof

A technology for gloves and surgery, applied in the field of surgical gloves, can solve the problems of unfavorable market promotion, high cost of raw materials, poor moisture permeability, etc.

Active Publication Date: 2020-03-06
BLUE SAIL MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surgical gloves made of synthetic polyisoprene as the preparation material abroad have been greatly improved in replacing natural latex gloves, but the poor moisture permeability has not been improved, and the cost of raw materials is very high, much higher than that of natural latex gloves , not conducive to marketing

Method used

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  • A kind of breathable surgical gloves and preparation method thereof
  • A kind of breathable surgical gloves and preparation method thereof

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preparation example Construction

[0021] The invention provides a kind of preparation method of breathable surgical gloves, comprising the following steps:

[0022] The water-based polyurethane resin material is mixed with water and stirred to obtain a mixed solution; the water-based polyurethane resin material includes 15 to 50 parts by weight of polyurethane and 50 to 85 parts by weight of water; the polyurethane consists of a mass ratio of 30 to 50: 15~25: 1~10: 0.5~20: 0.1~10: 0.1~0.5: 1~10: 1~10 polyol polymer, diisocyanate, water-based chain extender, hydrophilic agent, crosslinking agent, catalyst , a salt-forming agent and an organic solvent; the polymer is selected from polyols selected from polyether polyols and / or polyester polyols;

[0023] Dip the hand mold into the mixed solution, curl the lip after forming a film, and demould to obtain a breathable surgical glove;

[0024] The temperature of the hand mold during the dipping is ≤60°C, the dipping time is 20-60s; the film-forming temperature is 1...

Embodiment 1

[0055] Add 33 parts of polytetrahydrofuran ether glycol (PTMG-1000) into the reaction kettle, heat up to 80-90°C while stirring, dehydrate with a vacuum pump for 1 hour, and then add isophorone diisocyanate (IPDI) (diisocyanate) 22 parts were incubated at 80°C for 1 hour to obtain an intermediate;

[0056] Then weigh 2.5 parts of dimethylolpropionic acid (DMPA) (hydrophilic agent) and add 3.0 parts of diethylene glycol chain extender into the kettle together, stir well and then add 20 parts of acetone low boiling point solvent, 0.01 part of dilaurel Acetate dibutyltin catalyst, at 50-80°C, react for 3 hours; then add 1.6 parts of trimethylolpropane (TMP) cross-linking agent, 25 parts of acetone, react for 3 hours, the reaction is completed, lower the temperature to below 50°C, add 33 parts of acetone and 3 parts of triethanolamine salt-forming agent, add 185 parts of deionized water after cooling down, and disperse the polyurethane polymer at a speed of 500-1000 r / min with a h...

Embodiment 2

[0070] Add 50 parts of polytetrahydrofuran ether glycol (PTMG-1500) into the reaction kettle, stir while raising the temperature to 80-90°C, dehydrate with a vacuum pump for 1 hour, and then add isophorone diisocyanate (diisocyanate) (IPDI) 22 Parts were incubated at 80°C for 1 hour to obtain an intermediate;

[0071] Then weigh 2.5 parts of dimethylol propionic acid (DMPA) and 3.0 parts of diethylene glycol chain extender and add them into the kettle together, stir evenly, then add 20 parts of acetone low boiling point solvent and 0.01 part of dibutyltin dilaurate catalyst. At 50-80°C, react for 3 hours. Then add 1.6 parts of trimethylolpropane (TMP) cross-linking agent, 25 parts of acetone, and time the reaction for 3 hours. After the reaction is over, lower the temperature to below 50°C, add 33 parts of acetone and 3 parts of triethanolamine salt forming agent, add 185 parts of deionized water after cooling down, and disperse the polyurethane polymer at a speed of 500-1000...

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Abstract

The invention provides a pair of breathable surgical gloves and a preparation method thereof. The preparation method comprises the steps of mixing a waterborne polyurethane resin material with water, and stirring to obtain mixed liquid, wherein the waterborne polyurethane resin material is prepared from 15-50 parts by weight of polyurethane and 50-85 parts by weight of water, the polyurethane is prepared from a polyalcohol polymer, diisocyanate, a waterborne chain extender, a hydrophilic agent, a cross-linking agent, a catalyst, a salt forming agent and an organic solvent according to a mass ratio of (30-50) to (15-25) to (1-10) to (0.5-20) to (0.1-10) to (0.1-0.5) to (1-10) to (1-10), and the polyalcohol polymer is selected from polyether polyalcohol and / or polyester polyalcohol; dipping hand moulds into the mixed liquid, winding lips after films are formed, and demoulding to obtain the breathable surgical gloves, wherein during dipping, the temperature of the hand moulds is less than or equal to 60 DEG C, and the dipping time is 20-60s; the film formation temperature is 100-130 DEG C, and the film formation time is 2-4min. The breathable surgical gloves have excellent discharge moisture permeability as well as higher tensile strength and elongation at break.

Description

technical field [0001] The invention relates to the technical field of surgical gloves, in particular to a breathable surgical glove and a preparation method thereof. Background technique [0002] At present, most medical surgical gloves are made of natural latex. Natural rubber refers to the elastic solid made of natural latex collected from Hevea brasiliensis through coagulation, drying and other processing procedures. Natural rubber is a natural polymer compound with cis-1,4-polyisoprene as the main component, and its rubber hydrocarbon (cis-1,4-polyisoprene) content is more than 90%, and it also contains A small amount of protein, fatty acid, sugar and ash etc. However, in order to reduce the risk of allergies to patients and medical staff, more and more hospitals expect to phase out natural latex products including surgical gloves. At present, the relatively mature synthetic materials in the field of surgical glove applications are neoprene and isoprene rubber (IR). ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/10C08G18/48C08G18/34C08G18/32A61B42/10
CPCA61B42/00A61B42/10C08G18/10C08G18/4854C08G18/6692C08G18/348C08G18/3206
Inventor 相刚刘洪明刘晓星周东生
Owner BLUE SAIL MEDICAL
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