CN104099049A - Alkali lignin-polyurethane copolymerization modified starch adhesive formula and preparation technology thereof - Google Patents
Alkali lignin-polyurethane copolymerization modified starch adhesive formula and preparation technology thereof Download PDFInfo
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- CN104099049A CN104099049A CN201410305206.5A CN201410305206A CN104099049A CN 104099049 A CN104099049 A CN 104099049A CN 201410305206 A CN201410305206 A CN 201410305206A CN 104099049 A CN104099049 A CN 104099049A
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Abstract
The invention discloses an alkali lignin-polyurethane copolymerization modified starch adhesive formula and a preparation technology thereof, and relates to an adhesive. The adhesive mainly comprises ingredients of alkali lignin and polyurethane modified starch. The preparation technology comprises the following steps: after the preparation of alkali lignin and polyurethane modified starch is completed, mixing alkali lignin and polyurethane modified starch based on the specific weight of 100:(20-50); adding 5-10 parts of polyvinyl alcohol; heating to 190 DEG C for 1 hour to obtain the alkali lignin-polyurethane copolymerization modified starch adhesive. The formula and the preparation technology have the characteristics of being innocuous, simple in technology, optimal in performance, low in price, wide in application, good in stability, high in water resistance, high in bonding strength and high in practicability.
Description
Technical field:
The present invention relates to a kind of sizing agent, be specifically related to alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive formula and preparation technology thereof.
Background technology:
Chemical industry is development in modern times mainstay of the national economy industry very rapidly, and fine chemistry industry tail gas important component part, obtained the development of advancing by leaps and bounds in 20th century, the unresolved mankind's clothing, food, lodging and transportion--basic necessities of life and the energy, resource and environment problem are made significant contribution.
Sizing agent is that development of modern industry and human living standard improve requisite important materials, and sizing agent and bonding technology, with the incomparable special warfare of other mode of connection, are being brought into play great effect in modern economy, modern national defense, modern science and technology.
Summary of the invention:
Technical problem to be solved by this invention is to overcome the defect of prior art, and a kind of alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive formula and preparation technology thereof are provided.
Technical problem to be solved by this invention realizes by the following technical solutions.
Alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive formula, is characterized in that: its composition mainly comprises alkali lignin and polyurethane-modified starch, is specially
Alkali lignin comprises:
Alkali lignin: 40-50 part, formaldehyde: 20-30 part, benzene: 20-30 part, sodium hydroxide: 10-15 part, phenol: 20-30 part, ethanol: 20-30 part, phenylformic acid: 1-2 part;
Polyurethane-modified starch comprises:
Starch: 7-10 part, borax: 0-1 part, water repellent agent: 1-2 part, catalyzer 0-1 part, urea: 0-0.5 part, water: 1-20 part, polyvinyl alcohol: 0-2 part, acidic oxidation agent: 0.1-1 part, organic acid: 0-1 part, sodium hydroxide: 0-1 part, aqurous ployurethane: 25-40 part.
Alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive preparation technology, is characterized in that: comprise alkali lignin and the preparation of polyurethane-modified starch, be specially:
The preparation of alkali lignin comprises:
The aqueous solution of phenol, formaldehyde and sodium hydroxide is added to reactor, stir, be warming up to 95 DEG C, after 2 hours, add alkali lignin, at 95 DEG C, continue to react to intensity be 0.1-0.5Pas;
The preparation of polyurethane-modified starch comprises:
In the pot that stirrer, thermometer are housed, add water, starch, heated and stirred 20 minutes, temperature 60-70 DEG C, observe situation in pot, if starch becomes pasty state without catalyzer, add borax to mix with sodium hydroxide 5 minutes, if not, add catalyzer, continue to stir 10 minutes; Add hydrogen peroxide, organic acid, polyvinyl alcohol, oxidizing reaction 30-40 minute, temperature 90-100 DEG C; Add the mixing solutions of aqurous ployurethane, urea, water repellent agent, temperature 80-90 DEG C, reaction times 1.5-3 hour;
After having prepared, alkali lignin and polyurethane-modified starch are mixed, proportion is 100:20-50, adds 5-10 part polyvinyl alcohol, is warming up to 190 DEG C, and heating duration can obtain alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive for 1 hour.
Feature of the present invention: nontoxic, technique is simple, property favorable rates is honest and clean, of many uses, good stability, water resisting property is strong, and cohesive strength is high, practical.
Embodiment:
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Specific embodiment: alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive formula, its composition mainly comprises alkali lignin and polyurethane-modified starch, is specially
Alkali lignin comprises:
Alkali lignin: 50 parts, formaldehyde: 30 parts, benzene: 30 parts, sodium hydroxide: 15 parts, phenol: 30 parts, ethanol: 30 parts, phenylformic acid: 2 parts;
Polyurethane-modified starch comprises:
Starch: 10 parts, borax: 0-1 part, water repellent agent: 2 parts, catalyzer 0-1 part, urea: 0-0.5 part, water: 20 parts, polyvinyl alcohol: 0-2 part, acidic oxidation agent: 1 part, organic acid: 0-1 part, sodium hydroxide: 0-1 part, aqurous ployurethane: 40 parts.
Alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive preparation technology, comprises alkali lignin and the preparation of polyurethane-modified starch, is specially:
The preparation of alkali lignin comprises:
The aqueous solution of phenol, formaldehyde and sodium hydroxide is added to reactor, stir, be warming up to 95 DEG C, after 2 hours, add alkali lignin, at 95 DEG C, continue to react to intensity be 0.1-0.5Pas;
The preparation of polyurethane-modified starch comprises:
In the pot that stirrer, thermometer are housed, add water, starch, heated and stirred 20 minutes, temperature 60-70 DEG C, observe situation in pot, if starch becomes pasty state without catalyzer, add 1 part of borax to mix 5 minutes with 1 part of sodium hydroxide, if not, add 1 part of catalyzer, continue to stir 10 minutes; Add 1 part of hydrogen peroxide, 1 part of organic acid, 2 parts of polyvinyl alcohol, oxidizing reaction 30-40 minute, temperature 90-100 DEG C; Add the mixing solutions of aqurous ployurethane, urea, water repellent agent, temperature 80-90 DEG C, reaction times 1.5-3 hour;
After having prepared, alkali lignin and polyurethane-modified starch are mixed, proportion is 100:20, adds 10 parts of polyvinyl alcohol, is warming up to 150 DEG C, and heating duration can obtain alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive for 1 hour.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive formula, is characterized in that: its composition mainly comprises alkali lignin and polyurethane-modified starch, is specially
Alkali lignin comprises:
Alkali lignin: 40-50 part, formaldehyde: 20-30 part, benzene: 20-30 part, sodium hydroxide: 10-15 part, phenol: 20-30 part, ethanol: 20-30 part, phenylformic acid: 1-2 part;
Polyurethane-modified starch comprises:
Starch: 7-10 part, borax: 0-1 part, water repellent agent: 1-2 part, catalyzer 0-1 part, urea: 0-0.5 part, water: 1-20 part, polyvinyl alcohol: 0-2 part, acidic oxidation agent: 0.1-1 part, organic acid: 0-1 part, sodium hydroxide: 0-1 part, aqurous ployurethane: 25-40 part.
2. alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive preparation technology, is characterized in that: comprise alkali lignin and the preparation of polyurethane-modified starch, be specially:
The preparation of alkali lignin comprises:
The aqueous solution of phenol, formaldehyde and sodium hydroxide is added to reactor, stir, be warming up to 95 DEG C, after 2 hours, add alkali lignin, at 95 DEG C, continue to react to intensity be 0.1-0.5Pas;
The preparation of polyurethane-modified starch comprises:
In the pot that stirrer, thermometer are housed, add water, starch, heated and stirred 20 minutes, temperature 60-70 DEG C, observe situation in pot, if starch becomes pasty state without catalyzer, add borax to mix with sodium hydroxide 5 minutes, if not, add catalyzer, continue to stir 10 minutes; Add hydrogen peroxide, organic acid, polyvinyl alcohol, oxidizing reaction 30-40 minute, temperature 90-100 DEG C; Add the mixing solutions of aqurous ployurethane, urea, water repellent agent, temperature 80-90 DEG C, reaction times 1.5-3 hour;
After having prepared, alkali lignin and polyurethane-modified starch are mixed, proportion is 100:20-50, adds 5-10 part polyvinyl alcohol, is warming up to 190 DEG C, and heating duration can obtain alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive for 1 hour.
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| CN201410305206.5A CN104099049B (en) | 2014-06-30 | 2014-06-30 | Alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive formula and preparation technology thereof |
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| CN201410305206.5A CN104099049B (en) | 2014-06-30 | 2014-06-30 | Alkali lignin-polyurethane copolymerization mongolicum Turcz. with Modified Starch Adhesive formula and preparation technology thereof |
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| CN104099049A true CN104099049A (en) | 2014-10-15 |
| CN104099049B CN104099049B (en) | 2015-09-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978019A (en) * | 2017-05-17 | 2017-07-25 | 合肥绿洁环保科技有限公司 | A kind of good fluorocarbon coating of adhesive force |
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| JPH06200229A (en) * | 1992-03-03 | 1994-07-19 | Sekisui Chem Co Ltd | Polyurethane adhesive and production of article covered with decorative sheet using the same |
| CN101215451A (en) * | 2007-12-26 | 2008-07-09 | 华南农业大学 | A kind of starch-based adhesive and preparation method thereof |
| CN101260283A (en) * | 2008-04-10 | 2008-09-10 | 黄山学院 | A kind of preparation method and application of phenolic adhesive based on lignin phenolization liquid |
| CN102061141A (en) * | 2009-11-11 | 2011-05-18 | 青岛生物能源与过程研究所 | Method for preparing environmentally-friendly adhesive for lignin-based timber |
| CN102199266A (en) * | 2011-04-02 | 2011-09-28 | 山东圣泉化工股份有限公司 | Method for preparing phenolic resin and phenolic resin foaming body |
| CN102675581A (en) * | 2012-03-12 | 2012-09-19 | 北华大学 | Method for preparing biodegradable polyurethane foam by liquefied modification of bark powder and lignin |
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2014
- 2014-06-30 CN CN201410305206.5A patent/CN104099049B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200229A (en) * | 1992-03-03 | 1994-07-19 | Sekisui Chem Co Ltd | Polyurethane adhesive and production of article covered with decorative sheet using the same |
| CN101215451A (en) * | 2007-12-26 | 2008-07-09 | 华南农业大学 | A kind of starch-based adhesive and preparation method thereof |
| CN101260283A (en) * | 2008-04-10 | 2008-09-10 | 黄山学院 | A kind of preparation method and application of phenolic adhesive based on lignin phenolization liquid |
| CN102061141A (en) * | 2009-11-11 | 2011-05-18 | 青岛生物能源与过程研究所 | Method for preparing environmentally-friendly adhesive for lignin-based timber |
| CN102199266A (en) * | 2011-04-02 | 2011-09-28 | 山东圣泉化工股份有限公司 | Method for preparing phenolic resin and phenolic resin foaming body |
| CN102675581A (en) * | 2012-03-12 | 2012-09-19 | 北华大学 | Method for preparing biodegradable polyurethane foam by liquefied modification of bark powder and lignin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978019A (en) * | 2017-05-17 | 2017-07-25 | 合肥绿洁环保科技有限公司 | A kind of good fluorocarbon coating of adhesive force |
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| CN104099049B (en) | 2015-09-30 |
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