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Waterborne polyurethane coating agent and preparation method thereof

A water-based polyurethane and finishing agent technology, which is applied in textiles and papermaking, can solve the problems of water-based polyurethane finishing agents such as easy yellowing, achieve excellent ultraviolet reflection, avoid deterioration, and improve dispersibility

Inactive Publication Date: 2019-03-29
广西南宁桂尔创环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The method disclosed above improves the original water-based polyurethane, improves its waterproof and moisture-permeable, low-temperature high-elasticity and anti-bending performance, and prepares a finishing agent suitable for various textile coatings or artificial leather, but does not consider water-based polyurethane finishing. Problems such as easy yellowing after use

Method used

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  • Waterborne polyurethane coating agent and preparation method thereof

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Embodiment 1

[0029] A water-based polyurethane finishing agent, which is composed of the following components in parts by weight: 90 parts of water-based polyurethane prepolymer, 45 parts of spirulina small molecule peptide, 50 parts of deionized water, and 5 parts of hyperbranched cationic polyacrylamide.

[0030] The preparation method of above-mentioned aqueous polyurethane prepolymer, it may further comprise the steps:

[0031] (1) Weigh the following raw materials in parts by weight: 80 parts of polymer polyol, 50 parts of acetone, 15 parts of hydrophilic chain extender, 10 parts of neutralizing agent, 3 parts of polyaspartic acid ester, modified nano titanium dioxide 30 parts, 40 parts of isocyanate; Described polymer polyol is polyester polyol or polyether polyol; Described isocyanate is toluene diisocyanate, diphenylmethane diisocyanate, polymethylene polyphenyl polyol One or more mixtures of isocyanates; the hydrophilic chain extender is one or more mixtures of dimethylol propionic ...

Embodiment 2

[0040] A water-based polyurethane finishing agent, which is composed of the following components in parts by weight: 80 parts of water-based polyurethane prepolymer, 40 parts of spirulina small molecule peptide, 40 parts of deionized water, and 4 parts of hyperbranched cationic polyacrylamide.

[0041] The preparation method of above-mentioned aqueous polyurethane prepolymer, it may further comprise the steps:

[0042] (1) Weigh the following raw materials in parts by weight: 60 parts of polymer polyol, 40 parts of acetone, 5 parts of hydrophilic chain extender, 20 parts of neutralizing agent, 2 parts of polyaspartic acid ester, modified nano titanium dioxide 15 parts, 60 parts of isocyanate; Described polymer polyol is polyester polyol or polyether polyol; Described isocyanate is toluene diisocyanate, diphenylmethane diisocyanate, polymethylene polyphenyl polyol One or more mixtures of isocyanates; the hydrophilic chain extender is one or more mixtures of dimethylol propionic...

Embodiment 3

[0051] A water-based polyurethane finishing agent, which is composed of the following components in parts by weight: 100 parts of water-based polyurethane prepolymer, 50 parts of spirulina small molecule peptide, 30 parts of deionized water, and 3 parts of hyperbranched cationic polyacrylamide.

[0052] The preparation method of above-mentioned aqueous polyurethane prepolymer, it may further comprise the steps:

[0053] (1) Weigh the following raw materials in parts by weight: 90 parts of polymer polyol, 60 parts of acetone, 30 parts of hydrophilic chain extender, 5 parts of neutralizing agent, 1 part of polyaspartic acid ester, modified nano titanium dioxide 5 parts, 20 parts of isocyanate; Described polymer polyol is polyester polyol or polyether polyol; Described isocyanate is toluene diisocyanate, diphenylmethane diisocyanate, multiple methylene polyphenyl polyol One or more mixtures of isocyanates; the hydrophilic chain extender is one or more mixtures of dimethylol propi...

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Abstract

The invention discloses a waterborne polyurethane coating agent. The waterborne polyurethane coating agent comprises the following components in parts by weight: 80-100 parts of a waterborne polyurethane prepolymer, 40-50 parts of small molecular spirulina peptide, 30-50 parts of deionized water and 3-5 parts of hyperbranched cationic polyacrylamide. The waterborne polyurethane coating agent has the advantages of high hydrophobicity, yellowing resistance and the like, and a preparation technology is simple and easy to operate.

Description

technical field [0001] The invention belongs to the field of waterproof fabric finishing agents, in particular to a water-based polyurethane finishing agent and a preparation method thereof. Background technique [0002] Water-based polyurethane is a new type of polyurethane system that uses water instead of organic solvents as the dispersion medium, also known as water-dispersed polyurethane, water-based polyurethane or water-based polyurethane. Water-based polyurethane uses water as a solvent, and has the advantages of no pollution, safety and reliability, excellent mechanical properties, good compatibility, and easy modification. The water-based polyurethane resin has gradually replaced the solvent-based and has become an important direction for the development of the polyurethane industry. Water-based polyurethane can be widely used in coatings, adhesives, fabric coating and finishing agents, leather finishing agents, paper surface treatment agents and fiber surface trea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/14C08G18/64C08G18/48C08G18/42
CPCD06N3/14C08G18/4081C08G18/42C08G18/48C08G18/6438D06N3/0061D06N3/147D06N2209/103D06N2209/128
Inventor 戚海冰
Owner 广西南宁桂尔创环保科技有限公司
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