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Non-ionic light-cured polyurethane aqueous dispersion resin composition with dominant compatibility as well as preparation method and application thereof

A polyurethane water dispersion and resin composition technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor hydrolysis resistance, poor stability, and poor compatibility, and achieve migration avoidance, high stability, and excellent water resistance sexual effect

Active Publication Date: 2020-04-17
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: the present invention aims at the problems of poor hydrolysis resistance of current water-based UV resin coatings, poor compatibility with emulsions, pigment dyes, poor stability, and low transparency, and proposes a water-based UV polyurethane resin composition and a preparation method thereof. Specifically, a non-ionic photocurable polyurethane aqueous dispersion resin composition with superior compatibility and a preparation method thereof are provided

Method used

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  • Non-ionic light-cured polyurethane aqueous dispersion resin composition with dominant compatibility as well as preparation method and application thereof
  • Non-ionic light-cured polyurethane aqueous dispersion resin composition with dominant compatibility as well as preparation method and application thereof
  • Non-ionic light-cured polyurethane aqueous dispersion resin composition with dominant compatibility as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Get 18g polycaprolactone diol resin (PCL1000, Japan Daisyro Group), 8g polyether N210 (Jiangsu Haian Petrochemical Plant), 11g isophorone diisocyanate (Germany Bayer), and heat up to 75 ±2°C, stirring for 3 hours;

[0025] 2. Cool down to 55±2°C, add 10g of aminomethoxypolyether (CAM2070), raise the temperature to 75±2°C, and stir for 3 hours;

[0026] 3. Cool down to 55±2°C, add 1.5g of hydroxyacrylate (Jiangsu Chuangteng HPA), 0.02g of dibutyltin dilaurate, raise the temperature to 75±2°C, and stir for 1.5 hours;

[0027] 4. Add 72g of deionized water, stir and emulsify with deionized water, then add 0.2g of Kathon preservative (Kathon, commercially available) and stir at 80±2°C for 2 hours to prepare.

[0028] The finished product is a non-ionic photocurable polyurethane aqueous dispersion resin with a stable and uniform solid content of 40±2% (mass fraction) and excellent compatibility. The emulsion is milky white to translucent and has excellent storage stabili...

Embodiment 2

[0030] 1. Take 23.4g of polytetrahydrofuran diol resin (PCL1000, Daiselo Group of Japan), 10.2g of polyether diol N210, 11g of diisocyanate HDI, heat up to 75±2°C, and stir for 3.5 hours;

[0031] 2. Cool down to 55±2°C, add 11.5g of aminopolyethylene glycol, raise the temperature to 75±2°C, and stir for 2.5 hours;

[0032] 3. Cool down to 55±2°C, add 2.0g of hydroxyacrylate, 0.03g of dibutyltin dilaurate, raise the temperature to 75±2°C, and react for 1.5 hours;

[0033] 4. Add 87g of deionized water, stir and emulsify with deionized water, then add 0.2g of Kathon preservative, stir and keep warm at 80±2°C for 2 hours.

[0034] The finished product is a non-ionic photocurable polyurethane aqueous dispersion resin with a stable and uniform solid content of 40±2% (mass fraction) and superior hydrolysis resistance and compatibility. The emulsion is milky white to translucent and has excellent storage stability.

Embodiment 3

[0036] 1. Take 26g of polycaprolactone diol resin (PCL1000, Japan Daisyro Group), 8g of isophorone diisocyanate, 4.8g of HDI, heat up to 75±2°C, and stir for 3.0 hours;

[0037] 2. Cool down to 55±2°C, add 9.5g of aminopolyethylene glycol, raise the temperature to 75±2°C, and stir for 2 hours;

[0038] 3. Cool down to 55±2°C, add 1.8 parts of hydroxyacrylate, 0.03g of dibutyltin dilaurate, raise the temperature to 75±2°C, and stir for 2.5 hours;

[0039] 4. Add 75g of deionized water, stir and emulsify with deionized water, then add 0.2g of Casson preservative, stir and keep warm at 80±2°C for 2 hours.

[0040] The finished product is a non-ionic photocurable polyurethane aqueous dispersion resin with a stable and uniform solid content of 40±2% (mass fraction) and excellent compatibility. The emulsion is milky white to translucent and has excellent storage stability.

[0041] The non-ionic UV-curable polyurethane aqueous dispersion resin composition with superior compatibilit...

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Abstract

The invention discloses a non-ionic light-cured polyurethane aqueous dispersion resin composition with dominant compatibility as well as a preparation method and application thereof. An aqueous dispersion system of the composition is high in stability, and a synthesis process is simple and reliable; excellent wettability and leveling property are realized; the composition has excellent compatibility with dyes and pigments, and has excellent adhesive force to substrates and interlayers, excellent transparency, ultralow VOC, better compatibility with acrylic emulsion, can be used for preparing water-based photo-curable finish paint and priming paint, has excellent adhesive force to metals and nonmetals, and can provide more material choices and wider application for preparing and developinghigh-performance water-based UV-curable coatings.

Description

technical field [0001] The invention belongs to the technical field of preparation of water-based light-curing coatings, and in particular relates to a non-ionic light-curing polyurethane water dispersion resin composition with superior compatibility, a preparation method and application thereof. Background technique [0002] At present, UV curable resins have been widely used in prepolymers of photocurable systems such as coatings, inks and adhesives. As a new type, environmental protection and energy-saving resin, water-based UV curable resin has better performance than traditional UV curable resin. In particular, water-based UV resin is high molecular weight, its viscosity can be adjusted with water and water is used as the dissolution medium, water-based UV curable coatings are safe and environmentally friendly, energy-saving, adjustable in viscosity, thin coatings can be applied, and the cost is low. In paper varnishes, screen printing inks, lithographic inks, plastic ...

Claims

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Application Information

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IPC IPC(8): C08G18/67C08G18/42C08G18/48C08G18/50C08J3/03C09D175/14C09D7/20C08L75/14
CPCC08G18/4018C08G18/4277C08G18/48C08G18/482C08G18/4825C08G18/4854C08G18/5024C08G18/672C08J3/03C08J2375/14C09D175/14C09D7/20C08G18/40C08G18/50C08G18/42
Inventor 袁立新沈彬
Owner SOUTHEAST UNIV
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