Bright waterborne polyurethane and production method thereof

A water-based polyurethane, bright technology, applied in the field of polyurethane preparation, can solve the problems of non-compliance with environmental protection requirements, physical and mental health, environmental pollution, etc., and achieve the effects of scientific and rigorous formulation, avoid environmental pollution, and simple and convenient methods

Inactive Publication Date: 2019-10-08
安徽聚合辐化化工有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0003] The existing solvent-based polyurethane resin needs to be diluted with an organic solvent. During use, the solvent will volatilize and cause environmental pollution, which does n...
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Abstract

The invention relates to the technical field of production of polyurethane, and particularly discloses bright waterborne polyurethane. The bright waterborne polyurethane comprises a component A and acomponent B, wherein the component A comprises the following components in parts by weight: 70-80 parts of polycarbonate diol, 10-20 parts of polyoxypropylene triol, 30-40 parts of isophorone diisocyanate, 5-10 parts of dimethylolpropionic acid, 5-10 parts of 1,2-propanediol, 0.2-0.8 part of a catalyst, 5-10 parts of triethylamine and 200-250 parts of deionized water; and the component B comprisesthe following components in parts by weight: 70-80 parts of polycarbonate diol, 10-20 parts of polyoxypropylene triol, 20-30 parts of isophorone diisocyanate, 5-10 parts of dimethylolpropionic acid,0.2-0.8 part of a catalyst, 0.3-0.7 part of ethylenediamine, 5-10 parts of triethylamine and 180-200 parts of deionized water. According to the bright waterborne polyurethane, the defects of the priorart are overcome, use of toxic organic solvents is reduced, the situation that the toxic organic solvents volatilize to cause environmental pollution is avoided, and meanwhile, the finished product polyurethane is high in glossiness after forming a film, feels soft, and is good in color fastness to water.

Technology Topic

Examples

  • Experimental program(3)

Example Embodiment

[0019] Example 1
[0020] A bright waterborne polyurethane, including component A and component B, component A includes the following components by weight: polycarbonate diol UH-20070 parts, polyoxypropylene triol 10 parts, isophorone two 30 parts of isocyanate, 5 parts of dimethylolpropionic acid, 5 parts of 1-2 propylene glycol, 0.2 parts of stannous octoate, 5 parts of triethylamine and 200 parts of deionized water; component B includes the following components by weight: 70 parts of polycarbonate diol PC-2000, 10 parts of polyoxypropylene triol, 20 parts of isophorone diisocyanate, 5 parts of dimethylolpropionic acid, 0.2 parts of stannous octoate, 0.3 parts of ethylene diamine, triethyl 5 parts of amine and 180 parts of deionized water.
[0021] According to the above-mentioned preparation method of bright waterborne polyurethane, it includes the following steps:
[0022] (1) Preparation of component A; weigh the raw materials according to the formula, add polycarbonate diol UH-200, polyoxypropylene triol, and isophorone diisocyanate into the reactor, react at 85°C for 1 hour and then add Dimethylolpropionic acid and 1-2 propylene glycol, after reacting for 1h, add stannous octoate and keep it for 3.5h, add triethylamine at 45℃ for neutralization, add deionized water under high-speed stirring to disperse and emulsify for 10min, and remove under reduced pressure. Acetone, that is, component A;
[0023] (2) Prepare component B; weigh the raw materials according to the formula, add polycarbonate diol PC-2000, polyoxypropylene triol, and isophorone diisocyanate into the reaction kettle, react at 85°C for 1 hour and then add Dimethylolpropionic acid and 1-2 propylene glycol, after reacting for 1h, add stannous octoate and keep it for 3.5h, add triethylamine at 45℃ for neutralization, add deionized water under high-speed stirring to disperse and emulsify for 10min, and add ethyl Diamine chain extension and acetone removal under reduced pressure to obtain component B;
[0024] (3) Finished product packaging: The component A of the finished product in step 1 and the component B of the finished product in step 2 are mixed in a volume ratio of 1.1:1 to obtain the desired emulsion, and the emulsion is filled separately to obtain the finished product.

Example Embodiment

[0025] Example 2
[0026] A bright waterborne polyurethane, comprising component A and component B. The component A includes the following components in parts by weight: 60 parts of polycarbonate diol, 15 parts of polyoxypropylene triol, and two isophorone 35 parts of isocyanate, 7.5 parts of dimethylolpropionic acid, 7.5 parts of 1-2 propylene glycol, 0.5 parts of stannous octoate, 7.5 parts of triethylamine and 225 parts of deionized water; the component B includes the following parts by weight Points: 75 parts of polycarbonate diol, 15 parts of polyoxypropylene triol, 25 parts of isophorone diisocyanate, 7.5 parts of dimethylolpropionic acid, 0.5 parts of stannous octoate, 0.5 parts of ethylene diamine, triethyl 7.5 parts of amine and 190 parts of deionized water.
[0027] According to the above-mentioned preparation method of bright waterborne polyurethane, it includes the following steps:
[0028] (1) Prepare component A; weigh the raw materials according to the formula, add polycarbonate diol UH-200, polyoxypropylene triol, and isophorone diisocyanate into the reaction kettle, react at 87°C for 1 hour, and then add Dimethylolpropionic acid and 1-2 propylene glycol, after reacting for 1h, add stannous octoate and keep it for 3.5h, add triethylamine at 45℃ for neutralization, add deionized water under high-speed stirring to disperse and emulsify for 10min, and remove under reduced pressure. Acetone, that is, component A;
[0029] (2) Preparation of component B; weigh the raw materials according to the formula, add polycarbonate diol PC-2000, polyoxypropylene triol, and isophorone diisocyanate into the reaction kettle, react at 87°C for 1 hour and then add Dimethylolpropionic acid and 1-2 propylene glycol, after reacting for 1h, add stannous octoate and keep it for 3.5h, add triethylamine at 45℃ for neutralization, add deionized water under high-speed stirring to disperse and emulsify for 10min, and add ethyl Diamine chain extension and acetone removal under reduced pressure to obtain component B;
[0030] (3) Finished product packaging: Mix component A of the finished product in step 1 and component B of the finished product in step 2 at a volume ratio of 1.3:1 to obtain the desired emulsion, and fill the emulsion separately to obtain the finished product.

Example Embodiment

[0031] Example 3
[0032] A bright waterborne polyurethane, including component A and component B, component A includes the following components by weight: polycarbonate diol UH-20080 parts, polyoxypropylene triol 20 parts, isophorone two 40 parts of isocyanate, 10 parts of dimethylolpropionic acid, 10 parts of 1-2 propylene glycol, 0.8 parts of stannous octoate, 10 parts of triethylamine and 250 parts of deionized water; component B includes the following components by weight: 80 parts of polycarbonate diol PC-2000, 20 parts of polyoxypropylene triol, 30 parts of isophorone diisocyanate, 10 parts of dimethylolpropionic acid, 0.8 parts of stannous octoate, 0.7 parts of ethylene diamine, triethyl 10 parts of amine and 200 parts of deionized water.
[0033] According to the above-mentioned preparation method of bright waterborne polyurethane, it includes the following steps:
[0034] (1) Prepare component A; weigh the raw materials according to the formula, add polycarbonate diol UH-200, polyoxypropylene triol, and isophorone diisocyanate into the reaction kettle, react at 90°C for 1 hour and then add Dimethylolpropionic acid and 1-2 propylene glycol, after reacting for 1h, add stannous octoate and keep it for 3.5h, add triethylamine at 45℃ for neutralization, add deionized water under high-speed stirring to disperse and emulsify for 10min, and remove under reduced pressure Acetone, that is, component A;
[0035] (2) Preparation of component B; weigh the raw materials according to the formula, add polycarbonate diol PC-2000, polyoxypropylene triol, and isophorone diisocyanate into the reactor, react at 90°C for 1 hour and then add Dimethylolpropionic acid and 1-2 propylene glycol, after reacting for 1h, add stannous octoate and keep it for 3.5h, add triethylamine at 45℃ for neutralization, add deionized water under high-speed stirring to disperse and emulsify for 10min, and add ethyl Diamine chain extension and acetone removal under reduced pressure to obtain component B;
[0036] (3) Finished product packaging: Mix component A of the finished product in step 1 and component B of the finished product in step 2 in a volume ratio of 1.5:1 to obtain the desired emulsion, and fill the emulsion separately to obtain the finished product.
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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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