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A kind of biological polysaccharide-based water-based polyurethane material and preparation method thereof

The technology of polyurethane material and biological polysaccharide is applied in the field of biological polysaccharide-based water-based polyurethane material and its preparation, which can solve the problems of low catalytic efficiency of catalyst, empty bottom of pavement, poor biocompatibility, etc., and achieves non-toxic preparation method and equipment. The effect of low requirements and easy operation

Active Publication Date: 2020-02-18
SHANXI PROVINCIAL RES INST OF COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of weak adhesion between polyurethane and soil, poor biocompatibility, void at the bottom of road slabs, and low catalytic efficiency of catalysts in the prior art, the invention provides a biopolysaccharide-based waterborne polyurethane material and its preparation method, the polyurethane material is non-toxic, non-polluting, and belongs to the environment-friendly material

Method used

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  • A kind of biological polysaccharide-based water-based polyurethane material and preparation method thereof
  • A kind of biological polysaccharide-based water-based polyurethane material and preparation method thereof
  • A kind of biological polysaccharide-based water-based polyurethane material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A biological polysaccharide-based water-based polyurethane material is prepared from the following raw materials in proportions by weight:

[0033]

[0034] A kind of method utilizing above-mentioned raw material to prepare biological polysaccharide-based waterborne polyurethane material, its step is:

[0035] 1) In a glass reactor equipped with an electric stirrer, a reflux condenser, and a digital display thermometer, add 300 parts by weight of Wenlun glue, set the stirring rate to 100 rpm, and vacuumize at 120°C under stirring conditions 1h;

[0036] 2) After cooling to about 75°C, add 250 parts by weight of 2,4-toluene diisocyanate and 50 parts by weight of isophorone diisocyanate in turn, then dropwise add 30 parts by weight of triethanolamine and 10 parts by weight of stannous octoate, at 75°C Stirring for 0.5h, the rate of stirring is 100 rpm;

[0037] 3) Add 12 parts by weight of 1,4-butanediol, 100 parts by weight of acetone and 10 parts by weight of n-pen...

Embodiment 2

[0047] A biological polysaccharide-based water-based polyurethane material is prepared from the following raw materials in proportions by weight:

[0048]

[0049] A kind of method utilizing above-mentioned raw material to prepare biological polysaccharide-based waterborne polyurethane material, its step is:

[0050] 1) In a glass reactor equipped with an electric stirrer, a reflux condenser, and a digital display thermometer, add 200 parts by weight of Wenlun glue, set the stirring rate to 200 rpm, and vacuumize at 120°C under stirring conditions 1h;

[0051] 2) After cooling to about 75°C, add 250 parts by weight of 2,4-toluene diisocyanate and 50 parts by weight of isophorone diisocyanate in turn, then dropwise add 30 parts by weight of triethanolamine and 10 parts by weight of stannous octoate, at 75°C Stirring for 0.5h, the rate of stirring is 200 rpm;

[0052] 3) Add 12 parts by weight of 1,4-butanediol, 100 parts by weight of acetone and 10 parts by weight of n-pen...

Embodiment 3

[0062] A biological polysaccharide-based water-based polyurethane material is prepared from the following raw materials in proportions by weight:

[0063]

[0064]

[0065] A kind of method utilizing above-mentioned raw material to prepare biological polysaccharide-based waterborne polyurethane material, its step is:

[0066] 1) In a glass reactor equipped with an electric stirrer, a reflux condenser, and a digital display thermometer, add 100 parts by weight of Wenlun glue, set the stirring rate to 300 rpm, and vacuumize at 120°C under stirring conditions 1h;

[0067] 2) After cooling to about 75°C, add 250 parts by weight of 2,4-toluene diisocyanate and 50 parts by weight of isophorone diisocyanate in turn, then dropwise add 30 parts by weight of triethanolamine and 10 parts by weight of stannous octoate, at 75°C Stirring for 0.5h, the rate of stirring is 300 rpm;

[0068] 3) Add 12 parts by weight of 1,4-butanediol, 100 parts by weight of acetone and 10 parts by wei...

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Abstract

The invention relates to the technical field of macromolecular polymer synthesis and in particular relates to a biological polysaccharide-based waterborne polyurethane material and a preparation method thereof. The preparation method comprises the following steps of: adding a wheel-warming adhesive into a glass reactor provided with an electric stirrer, a reflux condensing pipe and a digital display thermometer for being vacuumized for 1h at 120 DEG C; cooling the same to 75 DEG C and adding 2,4-toluene diisocynate and isophorone diisocyanate, and dropwise adding triethanolamine and stannous octoate to stir for 0.5h at 75 DEG C; then further adding 1,4-butanediol, acetone and n-pentane to stir for 1.5h at 75 DEG C to obtain a polyurethane prepolymer; and distilling acetone at a reduced pressure at 58 DEG C and at the degree of vacuum of 0.01MPa to obtain the biological polysaccharide-based waterborne polyurethane material. The preparation method of the biological polysaccharide-based waterborne polyurethane material is non-toxic, pollution-free and economical and reasonable, can be applied to the fields of biomedicines, slab bottom disengagement of a pavement board, a catalyst carrier and the like on a large scale.

Description

technical field [0001] The invention relates to the technical field of polymer synthesis, in particular to a biological polysaccharide-based waterborne polyurethane material and a preparation method thereof. Background technique [0002] Bio-polysaccharide-based waterborne polyurethane uses acetone as the solvent (dispersion medium), and has excellent characteristics such as light weight, high expansion, rapid hardening, durability, minimal damage, and environmental friendliness; it is widely used in biomedicine, and the bottom of the road slab is empty , Catalyst carrier and other fields. Because biopolysaccharide polyurethane has excellent compatibility with human cells and bones, the application of biopolysaccharide-based waterborne polyurethane in the medical field will have unlimited prospects. [0003] Wenlun glue belongs to bio-based polymers and is a kind of biological polysaccharide. It is widely used in biomedicine, mortar, concrete and asphalt because of its man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/75C08G18/65C08G18/64C08G18/32C08J9/14
CPCC08G18/3206C08G18/6484C08G18/6511C08G18/724C08G18/755C08G18/7614C08J9/141C08J2203/14C08J2375/04
Inventor 周新星张翛刘海刘志胜辛润勤
Owner SHANXI PROVINCIAL RES INST OF COMM
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