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Melamine derivative modified waterborne polyurethane flame-retardant anti-microbial resin and preparation method thereof

A technology of water-based polyurethane and melamine, which is applied in the field of melamine derivative modified water-based polyurethane flame-retardant antibacterial resin and its preparation, and the preparation of modified water-based polyurethane, which can solve the problems of single resin function and no antibacterial performance, and achieve simple construction, The effect of excellent performance and good adhesion

Inactive Publication Date: 2019-03-26
SHAOGUAN HEZHONG CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Chinese patent CN106995522A discloses a water-based polyurethane flame retardant resin, which is prepared from the following components in terms of mass fraction: 90-120 parts of PTMG, 5-8 parts of polyether, 10-15 parts of diol, 0.05 parts of polycaprolactone ~0.08 parts, polyisocyanate 20~30 parts, fluorine-containing diol 3-5 parts, bromine-containing diol 4-7 parts, hydrophilic chain extender 3-8 parts, salt 2-9 parts, catalyst 0.08 ~0.15 parts, 200~240 parts of deionized water; the resin of this invention has a single function and has no antibacterial properties

Method used

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  • Melamine derivative modified waterborne polyurethane flame-retardant anti-microbial resin and preparation method thereof
  • Melamine derivative modified waterborne polyurethane flame-retardant anti-microbial resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A kind of melamine derivative modified waterborne polyurethane flame retardant antibacterial resin, its preparation process is as follows:

[0032] a. In a four-port reactor equipped with a thermometer, a condenser, and an agitator, add 2.2 parts of butanediol, 0.8 parts of trimethylolpropane, 9.5 parts of polytetrahydrofuran polyol, and dilauric acid in sequence according to the weight percentage of the formula 0.05 parts of dibutyltin, 2.2 parts of dimethylolpropionic acid, heated to 80-100°C for vacuum dehydration for 1.5-2.0 hours;

[0033] b. Cool down to 60-70°C, pass through nitrogen protection, add 3.2 parts of melamine derivatives, add 15.4 parts of isophorone diisocyanate dropwise, complete the dropwise addition in 0.5-1h, raise the temperature to 80-82°C for 2-2.5h , then lower the temperature to 70-75°C and react for 1.5-2.0 hours, add 8.0 parts of acetone to reduce the viscosity of the system, and measure the NCO value until it is consistent with the design...

Embodiment 2

[0036] A kind of melamine derivative modified waterborne polyurethane flame retardant antibacterial resin, its preparation process is as follows:

[0037] a. In a four-port reactor equipped with a thermometer, a condenser, and an agitator, add 2.0 parts of dipropylene glycol, 1.4 parts of trimethylolpropane, 8.0 parts of polyethylene glycol, and dilaurel 0.05 parts of dibutyltin acid, 2.2 parts of dimethylolpropionic acid, heated to 80-100°C for vacuum dehydration for 1.5-2.0 hours;

[0038] b. Cool down to 60-70°C, pass through nitrogen protection, add 3.8 parts of melamine derivatives, add 16.0 parts of hexamethylene diisocyanate dropwise, complete the dropwise addition in 0.5-1h, raise the temperature to 80-82°C and react for 2-2.5h , then lower the temperature to 70-75°C and react for 1.5-2.0 hours, add 9.0 parts of acetone to reduce the viscosity of the system, and measure the NCO value until it is consistent with the design value;

[0039] c. Continue stirring to lower ...

Embodiment 3

[0041] A kind of melamine derivative modified waterborne polyurethane flame retardant antibacterial resin, its preparation process is as follows:

[0042] a. In a four-port reactor equipped with a thermometer, a condenser, and an agitator, add 2.5 parts of hexanediol, 1.2 parts of glycerin, 10.0 parts of polytetrahydrofuran polyol, and 0.08 parts of dibutyltin dilaurate in sequence according to the weight percentage of the formula , 2.5 parts of dimethylolpropionic acid, heated to 80-100°C for vacuum dehydration for 1.5-2.0 hours;

[0043] b. Cool down to 60-70°C, pass nitrogen protection, add 3.6 parts of melamine derivatives, add 16.0 parts of toluene diisocyanate dropwise, and complete the dropwise addition in 0.5-1h, raise the temperature to 80-82°C for 2-2.5h, then cool down React at 70-75°C for 1.5-2.0 hours, add 5.0 parts of acetone to reduce the viscosity of the system, and measure the NCO value until it is consistent with the design value;

[0044] c. Continue stirri...

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Abstract

The invention relates to melamine derivative modified waterborne polyurethane flame-retardant anti-microbial resin and a preparation method thereof. The resin contains the following components in parts by weight: 8.0-18.0 parts of polyisocyanate, 2.0-5.0 parts of polyhydric alcohol, 1.5-3.0 parts of a polyamine type chain extender, 4.0-12.0 parts of polyether polyol, 1.5-3.0 parts of dimethylolpropionic acid, 0.01-0.1 part of dibutyltin dilaurate, 2.5-4.0 parts of a melamine derivative, 4.0-10.0 parts of acetone, 1.0-3.0 parts of a neutralizer, 1.5-3.0 parts of ethanol and 50.0-68.0 parts of deionized water, wherein the melamine derivative is prepared through reaction of melamine and citronellal hydrate. The melamine derivative modified waterborne polyurethane flame-retardant anti-microbial resin has the characteristics of good adhesive force, corrosion resistance, water resistance, alkali resistance, simplicity in construction, good flame retarcance and antibacterial property, high hardness and the like, can be widely applied to the ocean field, iron components and wood coatings and has huge utilization potentialities.

Description

technical field [0001] The invention relates to a preparation method of modified waterborne polyurethane, in particular to a melamine derivative modified waterborne polyurethane flame retardant and antibacterial resin and a preparation method thereof, belonging to the technical field of waterborne synthetic resins. Background technique [0002] At present, the materials of high-performance resin composite materials used in domestic and foreign fields are relatively single, mainly unsaturated polyester, vinyl ester resin, and tough epoxy resin materials, but these materials have deficiencies to varying degrees. Therefore, traditional composite materials are far from being able to meet the increasingly high performance requirements of the market. [0003] Polyurethane is formed by the reaction of oligomer polyols, small molecule polyols, polyisocyanates and chain extenders. Oligomer polyols provide soft segments, and polyisocyanates provide hard segments. This combination of s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08G18/34
CPCC08G18/3206C08G18/34C08G18/3851C08G18/4854C08G18/6692
Inventor 张武许钧强康伦国姚东生阳京辉
Owner SHAOGUAN HEZHONG CHEM CO LTD
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