CN112608694A - Quick-drying environment-friendly starch adhesive and preparation method thereof - Google Patents
Quick-drying environment-friendly starch adhesive and preparation method thereof Download PDFInfo
- Publication number
- CN112608694A CN112608694A CN202011346824.6A CN202011346824A CN112608694A CN 112608694 A CN112608694 A CN 112608694A CN 202011346824 A CN202011346824 A CN 202011346824A CN 112608694 A CN112608694 A CN 112608694A
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- China
- Prior art keywords
- parts
- quick
- drying environment
- friendly
- polyvinyl alcohol
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/04—Starch derivatives
- C09J103/10—Oxidised starch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
Abstract
The invention discloses a quick-drying environment-friendly starch adhesive and a preparation method thereof, wherein the quick-drying environment-friendly starch adhesive is prepared from the following components in parts by weight: 20-30 parts of corn starch, 60-80 parts of deionized water, 0.5-1.0 part of polyvinyl alcohol, 2-10 parts of hydrogen peroxide, 0.5-1.0 part of catalyst, 1.5-3.5 parts of sodium hydroxide, 0.5-2.5 parts of borax, 0.01-0.1 part of defoaming agent and 2-4 parts of drier. The adhesive prepared by the invention has the excellent performances of small density, good fluidity, high viscosity, high drying speed, difficult moisture absorption and efflorescence and the like.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to a preparation method of a quick-drying type environment-friendly starch adhesive.
Background
The traditional adhesive mainly comprises an organic solvent and resin, can generate a solvent harmful to human health in the production and use processes, and can cause harm to human health and even cause cancer if formaldehyde is absorbed for a long time. As people have gradually come to high quality, high quality of goods. The adhesive with good performance and environmental protection is the development direction in the future.
The starch is one of the main grain crops in China, has rich sources and low price, is green and natural, and is non-toxic and environment-friendly. Compared with sodium silicate, the starch adhesive has the characteristics of higher strength, no corrosion, no pollution, strong adhesion, small coating weight and the like. But also has the defects of slow self-drying speed, low initial adhesion and poor water resistance. Therefore, the starch adhesive which is high in drying speed, green, environment-friendly and non-toxic is dedicated.
Disclosure of Invention
In order to solve the problems, the invention provides a preparation method of a quick-drying environment-friendly adhesive, and the prepared adhesive has the excellent performances of small density, good fluidity, high viscosity, high drying speed, difficult moisture absorption and efforescence and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a quick-drying environment-friendly starch adhesive is prepared from the following components in parts by weight: 20-30 parts of corn starch, 60-80 parts of deionized water, 0.5-1.0 part of polyvinyl alcohol, 2-10 parts of hydrogen peroxide, 0.5-1.0 part of catalyst, 1.5-3.5 parts of sodium hydroxide, 0.5-2.5 parts of borax, 0.01-0.1 part of defoaming agent and 2-4 parts of drier. The concentration of the hydrogen peroxide is 30 percent; corn starch is a high polymer of glucose and has a large amount of hydroxyl, and after being oxidized by hydrogen peroxide, the hydroxyl can be oxidized into aldehyde and carboxyl, so that the binding capacity between molecules is weakened, and simultaneously, the glycosidic bond of a molecular chain is broken, the molecular weight of starch is reduced, and the viscosity is increased.
Preferably, the quick-drying environment-friendly starch binder is prepared from the following components in parts by weight: 20 parts of corn starch, 60 parts of deionized water, 0.5 part of polyvinyl alcohol, 4-8 parts of hydrogen peroxide and 0.5 part of catalyst; 2 parts of sodium hydroxide, 0.5 part of borax, 0.04 part of defoaming agent and 3 parts of drier.
Preferably, in the above-mentioned quick-drying environment-friendly starch binder, the catalyst is a combination of one or both of zinc oxide and ferrous sulfate.
Preferably, in the above-mentioned quick-drying environment-friendly starch binder, the polyvinyl alcohol is PVA 17-88, and the-OH group in the polyvinyl alcohol and the starch are
the-COOH groups are easily bonded and crosslinked, and also increase the affinity for the contact surface.
Preferably, in the above quick-drying environment-friendly starch binder, the drier is a combination of alum, sepiolite and potassium isooctanoate. The sepiolite is added to reduce the phenomena of moisture absorption and efflorescence, and the potassium isooctanoate is added to help the solidification and drying of the starch adhesive.
Preferably, in the above-mentioned quick-drying environment-friendly starch binder, the antifoaming agent is tributyl phosphate, and is slowly added until the foam substantially disappears.
The preparation method of the quick-drying environment-friendly starch adhesive comprises the following steps:
(1) adding polyvinyl alcohol and corn starch into a reaction kettle, stirring and mixing (playing a pre-dispersing role to avoid agglomeration in the polyvinyl alcohol dissolving process), adding deionized water, fully stirring and dissolving, and heating at the temperature of 55-60 ℃ for 60 min;
(2) adding hydrogen peroxide oxidant and catalyst, stirring for 10-20 min;
(3) stopping heating, adding sodium hydroxide when the temperature of the system is reduced to room temperature, and adding a defoaming agent;
(4) finally adding borax and a drier.
Compared with the prior art, the invention has the following beneficial effects: the invention uses the drier potassium isooctanoate, which has good acid value stability, molecular weight stability and drying performance. The addition of the sepiolite not only accelerates the self-drying speed of the adhesive, but also plays a role in preventing moisture absorption and efflorescence. The prepared adhesive has the advantages of small density, good fluidity, high viscosity, high drying speed, difficult moisture absorption and efforescence and the like.
Detailed Description
Example 1:
adding 0.5 part of polyvinyl alcohol and 20 parts of corn starch into a reaction kettle, stirring and mixing, adding 60 parts of deionized water, fully stirring and dissolving, controlling the temperature to be 55-60 ℃, heating for 60min, adding 6 parts of hydrogen peroxide with the mass fraction of 30% and 0.5 part of ferrous sulfate, stirring for 10-20min, stopping heating, adding 2 parts of sodium hydroxide solution with the mass fraction of 10% to gelatinize when the temperature of the system is reduced to room temperature, slowly adding 0.04 part of tributyl phosphate until foams disappear, and adding 1 part of borax, 1.5 parts of sepiolite and 1 part of potassium isooctanoate to obtain the quick-drying environment-friendly starch adhesive.
Example 2:
adding 0.6 part of polyvinyl alcohol and 25 parts of corn starch into a reaction kettle, stirring and mixing, adding 70 parts of deionized water, fully stirring and dissolving, controlling the temperature to be 55-60 ℃, heating for 60min, adding 7 parts of hydrogen peroxide with the mass fraction of 30%, 0.3 part of ferrous sulfate and 0.2 part of zinc oxide, stirring for 10-20min, stopping heating, cooling the system to room temperature, adding 2.5 parts of sodium hydroxide with the mass fraction of 10% for gelatinization, slowly adding 0.05 part of tributyl phosphate until foams disappear, and adding 1.2 parts of borax, 1.8 parts of sepiolite and 1.2 parts of potassium isooctanoate to obtain the quick-drying environment-friendly starch adhesive.
Example 3:
adding 0.8 part of polyvinyl alcohol and 28 parts of corn starch into a reaction kettle, stirring and mixing, adding 75 parts of deionized water, fully stirring and dissolving, controlling the temperature to be 55-60 ℃, heating for 60min, adding 8 parts of hydrogen peroxide with the mass fraction of 30%, 0.4 part of ferrous sulfate and 0.3 part of zinc oxide, stirring for 10-20min, stopping heating, cooling the system to room temperature, adding 2.8 parts of sodium hydroxide with the mass fraction of 10% for gelatinization, slowly adding 0.07 part of tributyl phosphate until foams disappear, and adding 1.3 parts of borax, 2 parts of sepiolite and 1.4 parts of potassium isooctanoate to obtain the quick-drying environment-friendly starch adhesive.
Example 4:
adding 0.9 part of polyvinyl alcohol and 30 parts of corn starch into a reaction kettle, stirring and mixing, adding 80 parts of deionized water, fully stirring and dissolving, controlling the temperature to be 55-60 ℃, heating for 60min, adding 9 parts of hydrogen peroxide with the mass fraction of 30%, 0.4 part of ferrous sulfate and 0.4 part of zinc oxide, stirring for 10-20min, stopping heating, cooling the system to room temperature, adding 3 parts of sodium hydroxide with the mass fraction of 10% for gelatinization, slowly adding 0.08 part of tributyl phosphate until foams disappear, adding 1.5 parts of borax, 2.5 parts of sepiolite and 1.5 parts of potassium isooctanoate to obtain the quick-drying environment-friendly starch adhesive.
Claims (7)
1. A quick-drying environment-friendly starch adhesive is characterized by being prepared from the following components in parts by weight: 20-30 parts of corn starch, 60-80 parts of deionized water, 0.5-1.0 part of polyvinyl alcohol, 2-10 parts of hydrogen peroxide, 0.5-1.0 part of catalyst, 1.5-3.5 parts of sodium hydroxide, 0.5-2.5 parts of borax, 0.01-0.1 part of defoaming agent and 2-4 parts of drier.
2. The quick-drying environment-friendly starch binder according to claim 1, characterized by being prepared from the following components in parts by weight: 20 parts of corn starch, 60 parts of deionized water, 0.5 part of polyvinyl alcohol, 4-8 parts of hydrogen peroxide and 0.5 part of catalyst; 2 parts of sodium hydroxide, 0.5 part of borax, 0.04 part of defoaming agent and 3 parts of drier.
3. The quick-drying environment-friendly starch binder as claimed in claim 1 or 2, wherein the catalyst is a combination of one or both of zinc oxide and ferrous sulfate.
4. The quick-drying environment-friendly starch binder as claimed in claim 1 or 2, wherein the polyvinyl alcohol is PVA 17-88.
5. The quick-drying environment-friendly starch binder as claimed in claim 1 or 2, wherein the drier is a combination of alum, sepiolite and potassium isooctanoate.
6. The quick-drying environment-friendly starch binder as claimed in claim 1 or 2, wherein the defoaming agent is tributyl phosphate.
7. A process for preparing a quick-drying environment-friendly starch binder as claimed in claim 1, characterized by comprising the steps of:
(1) adding polyvinyl alcohol and corn starch into a reaction kettle, stirring and mixing, adding deionized water, fully stirring and dissolving, and heating at the temperature of 55-60 ℃ for 60 min;
(2) adding hydrogen peroxide oxidant and catalyst, stirring for 10-20 min;
(3) stopping heating, adding sodium hydroxide when the temperature of the system is reduced to room temperature, and adding a defoaming agent;
(4) finally adding borax and a drier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346824.6A CN112608694A (en) | 2020-11-26 | 2020-11-26 | Quick-drying environment-friendly starch adhesive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346824.6A CN112608694A (en) | 2020-11-26 | 2020-11-26 | Quick-drying environment-friendly starch adhesive and preparation method thereof |
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| Publication Number | Publication Date |
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| CN112608694A true CN112608694A (en) | 2021-04-06 |
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| CN202011346824.6A Pending CN112608694A (en) | 2020-11-26 | 2020-11-26 | Quick-drying environment-friendly starch adhesive and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228460A (en) * | 1998-03-10 | 1999-09-15 | 祝成 | Polyvinyl alcohol graft type paper product starch adhesive and its production method |
| CN103666324A (en) * | 2013-11-29 | 2014-03-26 | 汤颖锴 | Multi-effect adhesive for corrugated cartons |
| CN103666326A (en) * | 2013-11-29 | 2014-03-26 | 汤颖锴 | Quick-drying carton adhesive |
| KR20140086565A (en) * | 2012-12-28 | 2014-07-08 | 대한민국(국가기록원) | Method for manufacturing of traditional adhesives using enzyme |
-
2020
- 2020-11-26 CN CN202011346824.6A patent/CN112608694A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228460A (en) * | 1998-03-10 | 1999-09-15 | 祝成 | Polyvinyl alcohol graft type paper product starch adhesive and its production method |
| KR20140086565A (en) * | 2012-12-28 | 2014-07-08 | 대한민국(국가기록원) | Method for manufacturing of traditional adhesives using enzyme |
| CN103666324A (en) * | 2013-11-29 | 2014-03-26 | 汤颖锴 | Multi-effect adhesive for corrugated cartons |
| CN103666326A (en) * | 2013-11-29 | 2014-03-26 | 汤颖锴 | Quick-drying carton adhesive |
Non-Patent Citations (3)
| Title |
|---|
| 中国化工信息中心等: "《中国化工产品目录》", 31 October 2001, 石油工业出版社, pages: 326 * |
| 冯启明等: "《非金属矿产加工与开发利用》", 31 December 2010, 地资出版社, pages: 181 * |
| 杜继昌: "《化学俱乐部》", 31 October 1998, 广东教育出版社, pages: 10 - 11 * |
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