CN103665270A - Preparation method of soy protein adhesive - Google Patents
Preparation method of soy protein adhesive Download PDFInfo
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- CN103665270A CN103665270A CN201210336874.5A CN201210336874A CN103665270A CN 103665270 A CN103665270 A CN 103665270A CN 201210336874 A CN201210336874 A CN 201210336874A CN 103665270 A CN103665270 A CN 103665270A
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Abstract
The invention discloses a preparation method of a soy protein adhesive. The preparation method is characterized in that physical-chemical modification, cross-linking, grafting and other steps are carried out for preparing the soy protein adhesive by using soy protein as a raw material. The preparation method has the advantages that the raw materials used are nontoxic, the processing technology is simple, the process is environmentally-friendly and does not release toxic and harmful substances, the environment can be protected, and the soy protein adhesive is able to be degraded. The soy protein adhesive is applicable to food-grade paper package, wood processing, common boxes, barrels, bags, corrugated paper boxes and other paper packaging products, as well as applying to the fields of pasting wallpaper, postage stamp, label, seal and the like.
Description
Technical field
The present invention relates to chemical field, be specifically related to a kind of preparation method of soybean albumen adhesive.
Background technology
In recent years, the environment that day by day serious environmental pollution, especially chemical contamination cause and ecological crisis, become the important factor that affects national economy and social development.The development that adhesives industries is advanced by leaps and bounds, for society provides many virgin rubber kinds, has also brought new pollution problem to environment simultaneously.The today of day by day improving at Environmental awareness and health perception; requirement to tackiness agent environmental issue will be further strict; it is even more important that protection of the environment seems; renewable, degradable, source is abundant and cheap bio-based tackiness agent more and more receives the concern of Chinese scholars; utilize the green environment protection adhesion agent of renewable resources manufacture will progressively replace petrochemical industry resource, soybean albumen adhesive captures the main positions of Market of Adhesives at last.
Summary of the invention
The object of the invention is for the problem such as solve differences in viscosity that current soybean glue in use exists, glue performance is not high, water tolerance is poor, provide a kind of new can be degradable, the preparation method of the soybean albumen adhesive of safety non-toxic.
The technical scheme of the present invention that realizes above-mentioned purpose is, the preparation method of a kind of environmental friendliness and degradable soybean protein adhesive, and the method comprises the following steps:
(1) physically modified: the polyvinyl alcohol solution that compound concentration is 2-7%, get 100 parts of these solution, add while stirring 10-30 part soybean protein isolate, carry out supersound process simultaneously;
(2) chemical modification: add 0.05-0.4 part S-WAT, 0.3-3.0 part glucose in aforementioned (1) solution, 70-100 ℃ of water-bath 15-60min;
(3) crosslinked: in aforementioned (2) solution, to add 1.5-15% glutaraldehyde solution 0.3-3 part, 40-60 ℃ of reaction 1-3h;
(4) grafting: add Potassium Persulphate 0.4-4 part in aforementioned (3) solution, sodium bisulfite 0.3-3 part radical initiator, ethyl acetate 0.5-5 part, 40-60 ℃ of reaction 2-6h.
The soybean protein original gelatin that described acquisition dry matter content is higher, ultrasonic power is 300-800W.
The higher structure of described soybean protein molecule is destroyed, and molecule fully stretches, and chemical modifier can be the reducing substanceses such as vitamins C, mercaptoethanol, dithiothreitol (DTT).
Described increase molecular weight of albumen, the bonding strength of raising tackiness agent, linking agent can be the materials such as diacetyl oxide, formaldehyde, apple polyphenol.
The described water tolerance of improving tackiness agent, graft reaction radical initiator can be used the monomers such as initiation vinyl-acetic ester such as ammonium persulphate, sodium bisulfite to carry out, or application SDS improves hydrophobicity.
The present invention has the following advantages:
1, the present invention be take soybean protein as raw material production tackiness agent, and soybean protein is renewable, degradable, source abundant, utilizes renewable resources to manufacture the problem that green environment protection adhesion agent can solve petroleum resources scarcity;
2, the present invention's application raw material is all nontoxic, and technique is simple, and course of processing environmental protection discharges without hazardous and noxious substances, environmental friendliness, and product degradable, meets environmental requirement;
3, the course of processing, in conjunction with hydrotropy, dispersion and the stabilization of ultrasonic auxiliary and polyoxyethylene glycol, obtains the higher soybean protein original gelatin of dry matter content, has greatly improved soy proteinaceous gelation, improves adhesive strength;
4, tackiness agent viscosity 5000 mpa.s left and right under more excellent condition, bonding strength can reach 1.0MPa, and hydrophobicity index is greater than 2000, is a kind of environmentally friendly product.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one, present embodiment are carried out according to following steps:
(1) physically modified: the polyvinyl alcohol solution that compound concentration is 2-7%, get 100 parts of these solution, add while stirring 10-30 part soybean protein isolate, carry out supersound process simultaneously;
(2) chemical modification: add 0.05-0.4 part S-WAT, 0.3-3.0 part glucose in aforementioned (1) solution, 70-100 ℃ of water-bath 15-60min;
(3) crosslinked: in aforementioned (2) solution, to add 1.5-15% glutaraldehyde solution 0.3-3 part, 40-60 ℃ of reaction 1-3h;
(4) grafting: add Potassium Persulphate 0.4-4 part in aforementioned (3) solution, sodium bisulfite 0.3-3 part radical initiator, ethyl acetate 0.5-5 part, 40-60 ℃ of reaction 2-6h.
Preferred implementation: the polyvinyl alcohol solution that compound concentration is 3-6%, get 100 parts of these solution, add while stirring 15-25 part soybean protein isolate, carry out supersound process simultaneously, other step and parameter are identical with embodiment one.
Preferred implementation: ultrasonic power is 400-700W, other step and parameter are identical with embodiment one.
Preferred implementation: chemical modifier is 0.1-0.3 part S-WAT, 0.4-2.0 part glucose, and other step and parameter are identical with embodiment one.
Preferred implementation: add 2-10% glutaraldehyde solution 0.5-2 part, other step and parameter are identical with embodiment one.
Preferred implementation: graft reaction adds Potassium Persulphate 0.5-3 part, sodium bisulfite 0.5-2 part, ethyl acetate 1-4 part, other step and parameter are identical with embodiment one.
Embodiment two, present embodiment are carried out according to following steps:
(1) physically modified: the polyvinyl alcohol solution that compound concentration is 5%, get 100 parts of these solution, add while stirring 20 parts of soybean protein isolates, then carry out supersound process, ultrasonic power is 500W;
(2) chemical modification: add 0.3 part of S-WAT, 2.0 parts of glucose in aforementioned (1) solution, 80 ℃ of water-bath 40min;
(3) crosslinked: in aforementioned (2) solution, to add 0.5 part of 8% glutaraldehyde solution, 55 ℃ of reaction 2.5h;
(4) grafting: add 2 parts of Potassium Persulphates in aforementioned (3) solution, 1 part of sodium bisulfite, 2 parts of ethyl acetate, 60 ℃ of reaction 3h.
Technique scheme has only embodied the optimal technical scheme of technical solution of the present invention, and those skilled in the art have all embodied principle of the present invention to some changes that wherein some part may be made, within belonging to protection scope of the present invention.
Claims (5)
1. a preparation method for soybean albumen adhesive, is characterized in that, the preparation of this tackiness agent comprises the following steps:
(1) physically modified: the polyvinyl alcohol solution that compound concentration is 2-7%, get 100 parts of these solution, add while stirring 10-30 part soybean protein isolate, carry out supersound process simultaneously;
(2) chemical modification: add 0.05-0.4 part S-WAT, 0.3-3.0 part glucose in aforementioned (1) solution, 70-100 ℃ of water-bath 15-60min;
(3) crosslinked: in aforementioned (2) solution, to add 1.5-15% glutaraldehyde solution 0.3-3 part, 40-60 ℃ of reaction 1-3h;
(4) grafting: add Potassium Persulphate 0.4-4 part in aforementioned (3) solution, sodium bisulfite 0.3-3 part radical initiator, ethyl acetate 0.5-5 part, 40-60 ℃ of reaction 2-6h.
2. the preparation method of soybean albumen adhesive according to claim 1, is characterized in that obtaining the soybean protein original gelatin that dry matter content is higher, and ultrasonic power is 300-800W.
3. the preparation method of soybean albumen adhesive according to claim 1, is characterized in that the higher structure of soybean protein molecule is destroyed, and molecule fully stretches, and chemical modifier can be the reducing substanceses such as vitamins C, mercaptoethanol, dithiothreitol (DTT).
4. the preparation method of soybean albumen adhesive according to claim 1, is characterized in that increasing molecular weight of albumen, improves the bonding strength of tackiness agent, and linking agent can be the materials such as diacetyl oxide, formaldehyde, apple polyphenol.
5. the preparation method of soybean albumen adhesive according to claim 1, it is characterized in that improving the water tolerance of tackiness agent, graft reaction radical initiator can be used the monomers such as initiation vinyl-acetic ester such as ammonium persulphate, sodium bisulfite to carry out, or application SDS improves hydrophobicity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210336874.5A CN103665270A (en) | 2012-09-13 | 2012-09-13 | Preparation method of soy protein adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210336874.5A CN103665270A (en) | 2012-09-13 | 2012-09-13 | Preparation method of soy protein adhesive |
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| CN103665270A true CN103665270A (en) | 2014-03-26 |
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| CN201210336874.5A Pending CN103665270A (en) | 2012-09-13 | 2012-09-13 | Preparation method of soy protein adhesive |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106047233A (en) * | 2016-05-25 | 2016-10-26 | 合肥东彩印刷科技有限公司 | Starch-based adhesive with high binding power and good heat conductivity for paperboard |
| CN106065544A (en) * | 2016-06-17 | 2016-11-02 | 苍南县宝丰印业有限公司 | A kind of paper products coating material |
| CN106365624A (en) * | 2016-08-29 | 2017-02-01 | 天长市中德电子有限公司 | Low-loss manganese-zinc soft ferrite magnet core material |
| CN106433554A (en) * | 2016-08-31 | 2017-02-22 | 江西华昌木业有限公司 | Environment-friendly water-tolerant adhesive for wood |
| CN108048004A (en) * | 2017-11-21 | 2018-05-18 | 安徽北马科技有限公司 | A kind of preparation method of soybean protein base timber adhesive |
-
2012
- 2012-09-13 CN CN201210336874.5A patent/CN103665270A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106047233A (en) * | 2016-05-25 | 2016-10-26 | 合肥东彩印刷科技有限公司 | Starch-based adhesive with high binding power and good heat conductivity for paperboard |
| CN106065544A (en) * | 2016-06-17 | 2016-11-02 | 苍南县宝丰印业有限公司 | A kind of paper products coating material |
| CN106365624A (en) * | 2016-08-29 | 2017-02-01 | 天长市中德电子有限公司 | Low-loss manganese-zinc soft ferrite magnet core material |
| CN106433554A (en) * | 2016-08-31 | 2017-02-22 | 江西华昌木业有限公司 | Environment-friendly water-tolerant adhesive for wood |
| CN108048004A (en) * | 2017-11-21 | 2018-05-18 | 安徽北马科技有限公司 | A kind of preparation method of soybean protein base timber adhesive |
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Application publication date: 20140326 |