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Water-borne resin for polyurethane gloves and preparing method thereof

A water-based resin and polyurethane technology, which is applied in the field of water-based polyurethane resin and its synthesis, can solve problems such as air pollution and workshop workers' hazards, and achieve the effects of reducing energy consumption, saving manpower and material resources

Inactive Publication Date: 2014-12-10
SHANDONG TIANQING TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN103622181A discloses a method for making antifreeze-cracking PVC gloves. The content mass ratio of organic solvents such as plasticizers and stabilizers in the PVC paste resin used in it reaches 40%, and a large amount of organic solvents are used in the production process of PVC gloves. Volatilization has brought great harm to workshop workers and caused serious air pollution

Method used

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  • Water-borne resin for polyurethane gloves and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] formula:

[0033] 70kg of polytetrahydrofuran ether glycol with a molecular weight of 2000 and a hydroxyl value of 56.6KOHmg / g, IPDI 30kg, 1.6-hexanediol 1.2kg, dimethylol propionic acid 2kg, trimethylolpropane 2kg, acetone 35kg, bismuth neodecanoate 0.02kg, dimethylaminoethanol 1.5kg, ethylenediamine 3kg, ionized water 260kg, hydroxyethyl cellulose 5kg.

[0034] Process:

[0035] 1. Polymerization reaction: under the condition of anhydrous and oxygen-free, vacuum dehydrated polytetrahydrofuran ether diol with a molecular weight of 2000 and a hydroxyl value of 56.6KOHmg / g, and IPDI are sequentially added to the reaction vessel, and the temperature is 85°C under mechanical stirring. , reacted for 2 hours, added 1.6-hexanediol, dimethylolpropionic acid, trimethylolpropane, and bismuth neodecanoate into the reaction vessel, and reacted at 80°C for 3 hours under mechanical stirring, adding every 1h 10kg of acetone controls the viscosity, and when the isocyanate group cont...

Embodiment 2

[0040] formula:

[0041] Polytetrahydrofuran ether glycol with a molecular weight of 2200 and a hydroxyl value of 56.6KOHmg / g 80kg, H12MDI 35kg, 1.6-hexanediol 0.8kg, dimethylolpropionic acid 1.7kg, trimethylolpropane 2.8kg, acetone 40kg, neodecanoic acid Bismuth 0.05kg, dimethylaminoethanol 1kg, ethylenediamine 3kg, ionized water 290kg, hydroxymethylcellulose sodium 6kg.

[0042] Process:

[0043] 1. Polymerization reaction: under anhydrous and oxygen-free conditions, add polytetrahydrofuran ether diol and H12MDI with vacuum dehydration molecular weight 2200 and hydroxyl value 56.6KOHmg / g into the reaction vessel in turn, and stir mechanically at a temperature of 90°C , react for 2 hours, add 1.6-hexanediol, dimethylolpropionic acid, trimethylolpropane, and bismuth neodecanoate into the reaction vessel, and react at 85°C for 2.5 hours under mechanical stirring, every 0.5h Add 8kg of acetone to control the viscosity, and when the isocyanate group content in the polymer produ...

Embodiment 3

[0048] formula:

[0049]Polytetrahydrofuran ether glycol with a molecular weight of 1800 and a hydroxyl value of 56.6KOHmg / g 90kg, IPDI 40kg, 1.4-butanediol 1.2kg, dimethylolpropionic acid 2kg, trimethylolpropane 4kg, acetone 50kg, bismuth neodecanoate 0.05 kg, dimethylaminoethanol 1.5kg, ethylenediamine 3kg, ionized water 330kg, hydroxyethyl cellulose 7kg.

[0050] Process:

[0051] 1. Polymerization reaction: under the condition of anhydrous and oxygen-free, vacuum dehydrated polytetrahydrofuran ether diol with a molecular weight of 1800 and a hydroxyl value of 56.6KOHmg / g, and IPDI are sequentially added to the reaction vessel, and the temperature is 80°C under mechanical stirring. , react for 2 hours, add 1.4-butanediol, dimethylolpropionic acid, trimethylolpropane, bismuth neodecanoate, under mechanical stirring, react at 65°C for 3.5 hours, add 5kg of acetone every 0.5h to control Viscosity, when the content of isocyanate groups in the polymer to be reacted remains unc...

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PUM

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Abstract

The invention provides a water-borne resin for polyurethane gloves and a preparing method thereof. The resin is mainly prepared from the raw materials of polyether polyol, isocyanate, dihydric alcohol, a thickener and the like. The preparing method comprises the steps of polymerizing, emulsifying, distilling, thickening and the like. All organic solvents are distilled out in the production process. The water-borne resin belongs to the organic-solvent-free environment-friendly type water-borne resin. The breakage elongation rate of the polyurethane gloves made from the water-borne resin obtained in the invention is far greater than that of PVC gloves.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a water-based polyurethane resin and a synthesis method thereof. Background technique [0002] There is a great demand for PVC gloves in foreign markets, but due to the great pollution in the production process, there is almost no production in foreign countries, especially developed countries, and the disposable PVC gloves required for industrial production and living needs are basically imported. my country's Shijiazhuang, Hebei, and Zibo, Shandong are the production bases of PVC gloves in the country. However, the main raw material of PVC gloves is PVC paste resin. During the compounding process of PVC paste resin, 30%-50% plasticizer is added to increase the softness. At the same time, PVC is not resistant to light and heat. Under the influence of light and heat, it will Chlorine free radicals are released and the material deteriorates, so it is necessa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/75C08G18/76C08G18/66C08G18/48C08G18/32C08G18/34
CPCC08G18/755C08G18/3206C08G18/3228C08G18/3234C08G18/348C08G18/4854C08G18/6666C08G18/6674C08G18/6677C08G18/6685C08G18/758C08J3/03
Inventor 孙海园黄凯刘娅林刘文峰马金明闫克辉陈建栋陈玉国王铁森苗吉宾
Owner SHANDONG TIANQING TECH DEV
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