CN103087672B - Soybean meal-based adhesive and preparation method thereof - Google Patents
Soybean meal-based adhesive and preparation method thereof Download PDFInfo
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- CN103087672B CN103087672B CN201210277994.2A CN201210277994A CN103087672B CN 103087672 B CN103087672 B CN 103087672B CN 201210277994 A CN201210277994 A CN 201210277994A CN 103087672 B CN103087672 B CN 103087672B
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Abstract
The invention provides a soybean meal-based adhesive and a preparation method thereof. The soybean meal-based adhesive comprises the following raw material in parts by weight: 20-30 parts of soybean meal flour, 74-58 parts of water and 5-10 parts of a compound cross-linking agent, and the used compound cross-linking agent is a mixture of a plurality of urea, polyvinyl alcohol, isocyanate type and amide type polymers. The soybean meal flour is taken as a raw material, acid treatment and heating treatment are performed in early stage, and the compound cross-linking modifier is adopted in late stage for cross-linking modification and preparation; and the preparation process has the advantages of simplicity, greenness, environment-friendly property and a wide range of applications. The adhesion strength is high, the cost of the raw material is low, the soybean meal-based adhesive is easy to apply, and the pre-pressing performance is good.
Description
Technical field
The invention relates to the preparation method of dregs of beans base adhesive, the particularly combination of multiple crosslinking agent and application in preparation process.
Background technology
Dregs of beans is the residuum of grease industry, its abundance, renewable, safety and environmental protection, uses it for prepare sizing agent and can realize part substitution of resources, has higher economic benefit and environmental benefit.
China's wood-based plate output 2.53 billion cubic meter in 2011, consumes sizing agent and reaches more than 1,000 ten thousand tons, the fossil feedstock that annual use is a large amount of.Current China based Wood Adhesives raw material is mainly based on phenol, urea, formaldehyde, high to petrochemical material dependency degree, and burst size of methanal is higher.
Low cost, environment-friendly biomass base adhesive become the future thrust of based Wood Adhesives industry.Therefore research and develop the low-cost environment-friendly based Wood Adhesives based on dregs of beans albumen, will the traditional timber sizing agent problem high to petrochemical material dependency degree be overcome, promote China's wood-based plate industrial upgrading.
But soy protein adhesives is used for plywood making industry, at its coating, Pre-pressure property, the hygrometric state bonding strength aspect of gained glued board is not ideal enough.Therefore, people adopt various method to carry out modification, as blended composite modified, chemical reaction modification etc.
In the prior art, the preparation of soybean adhesive, its generally adopts soybean isolated protein, causes production cost higher; Adopt and carry out, in composite modified method, causing in soya-based based Wood Adhesives and still there is free formaldehyde with phenolic glue, urea-formaldehyde glue; Commercially available soybean adhesive, its in use needs higher hot pressing condition, and as hot pressing temperature reaches 140 degree, pressure 1.6MPa, causes energy-output ratio large, add the production cost of artificial board enterprise; It is high also to there is viscosity in soybean adhesive, its, and the defects such as coating and Pre-pressure property difference, remain to be further improved.
Summary of the invention
The present invention is directed to prior art Problems existing, propose a kind of dregs of beans protein-based sizing agent and preparation method thereof, have that preparation technology is simple, environmental protection, easy to use, the glued board bonding strength of preparation reaches the features such as GB II class plate requires.
The present invention is achieved by the following technical solutions: a kind of dregs of beans protein-based sizing agent, and raw material is composed as follows by mass parts:
20 ~ 30 parts, soybean meal powder,
74 ~ 58 parts, water,
Multiple crosslinking agent 5 ~ 10 parts,
Multiple crosslinking agent used is the mixture several arbitrarily in urea, polyvinyl alcohol, isocyanates, acylamide polymer.
Described soybean meal powder is defatted soybean meal, and granularity is 50 ~ 400 orders.
If pH value is not between 3 ~ 10, is also added with pH adjusting agent and regulates, described pH adjusting agent is the mixture of any one or any two kinds in phosphoric acid, hydrochloric acid or oxalic acid.
Described acylamide polymer is any one in anion-polyacrylamide, cationic polyacrylamide, Polyamide-Polyamsne-Epichlorohydrin and amphiprotic polyacrylamide.
Described isocyanates is any one in '-diphenylmethane diisocyanate, tolylene diisocyanate, hexamethylene diisocyanate and xylylene diisocyanate.
PH value is 3 ~ 10.
Solids content is at 20 ~ 40%wt.
The method of the dregs of beans protein-based sizing agent described in preparation, is added to the water soybean meal powder, and pH value, in 45 DEG C ~ 85 DEG C reactions adds multiple crosslinking agent and stirs and get final product after 30 ~ 90 minutes as then direct between 3 ~ 10.
If pH value is not between 3 ~ 10, adds pH value regulator and be adjusted between 3 ~ 10.
Beneficial effect:
1, the production cost of soya-based sizing agent is reduced: the soybean meal powder of employing is just through the commercially available defatted soybean meal simply pulverized and sieved or glue mill processes, and price is starkly lower than soybean isolated protein; Compacting glued board is temperature required all to match with existing industrial production with pressure, has saved energy consumption, has reduced cost;
2, adopt the combination properties-correcting agent of two kinds or two or more arbitrarily wherein such as urea, polyvinyl alcohol, isocyanates, amide substance, ensureing under enough bonding strengths, the problem that viscosity is large, coating is difficult caused after adding linking agent can also be solved.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
In the preparation process of above-mentioned dregs of beans protein-based sizing agent, be raw materials usedly commercially available, dregs of beans provides for Nan Jingwang reaches feed factory.
Dregs of beans protein-based sizing agent of the present invention with commercially available defatted soybean meal for raw material, multiple crosslinking agent is added after acid and heat treated, discharging after stirring, multiple crosslinking agent used is the mixture several arbitrarily in urea, polyvinyl alcohol, isocyanates, amide substance;
Described dregs of beans dietary protein origin is in defatted soybean meal.
Described pH adjusting agent is a kind of or wherein combination of two kinds of phosphoric acid, hydrochloric acid or oxalic acid.
Described sizing agent pH value controls 3 ~ 10.
Described solids content is at 20 ~ 40%wt.
Embodiment 1
The preparation method of dregs of beans protein-based sizing agent is: being pulverized by dregs of beans or reaching granularity after the process of glue mill is be added to the water after 50 ~ 400 orders, test pH value, if pH value is not between 3 ~ 10, then add pH value regulator to regulate, then multiple crosslinking agent is added, discharging after stirring after processing 30 ~ 90 minutes at 45 DEG C ~ 85 DEG C.The dregs of beans base adhesive performance index of preparation are: outward appearance is brown color viscous body.Use it for the compacting of three layers of poplar or Eucalyptus glued board, wherein hot pressing temperature 125 DEG C, hot pressing pressure 1.2MPa, hot pressing time is 60s/mm, and concrete outcome sees attached list.
Embodiment 2 ~ embodiment 11, carry out according to the method in embodiment 1 and step, composition of raw materials and test result see attached list.
Subordinate list
Note: the sanitas all adding sizing agent total mass 1% in all samples when preparing sizing agent.
In time adopting composite linking agent, bonding strength reaches national two class plate requirements.
Claims (8)
1. a dregs of beans protein-based sizing agent, is characterized in that: raw material is composed as follows by mass parts:
20 ~ 30 parts, soybean meal powder,
74 ~ 58 parts, water,
Multiple crosslinking agent 5 ~ 10 parts,
Multiple crosslinking agent used is the mixture of urea, polyvinyl alcohol, isocyanic ester base polymer.
2. dregs of beans protein-based sizing agent as claimed in claim 1, it is characterized in that, described soybean meal powder is defatted soybean meal, and granularity is 50 ~ 400 orders.
3. dregs of beans protein-based sizing agent as claimed in claim 1, is characterized in that, if pH value is not between 3 ~ 10, then adds pH adjusting agent and regulates, and described pH adjusting agent is the mixture of any one or any two kinds in phosphoric acid, hydrochloric acid or oxalic acid.
4. the dregs of beans protein-based sizing agent as described in claim 1 or 3, is characterized in that, described isocyanates is any one in '-diphenylmethane diisocyanate, tolylene diisocyanate, hexamethylene diisocyanate and xylylene diisocyanate.
5. the dregs of beans protein-based sizing agent as described in claim 1 or 3, is characterized in that, pH value is 3 ~ 10.
6. the dregs of beans protein-based sizing agent as described in claim 1 or 3, it is characterized in that, solids content is at 20 ~ 40%wt.
7. prepare the method for the arbitrary described dregs of beans protein-based sizing agent of claim 1 ~ 6, it is characterized in that, be added to the water by soybean meal powder, pH value, in 45 DEG C ~ 85 DEG C reactions adds multiple crosslinking agent and stirs and get final product after 30 ~ 90 minutes as then direct between 3 ~ 10.
8. prepare the method for dregs of beans protein-based sizing agent as claimed in claim 7, it is characterized in that, if pH value is not between 3 ~ 10, adds pH value regulator and be adjusted between 3 ~ 10.
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| CN201210277994.2A CN103087672B (en) | 2012-08-07 | 2012-08-07 | Soybean meal-based adhesive and preparation method thereof |
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| CN201210277994.2A CN103087672B (en) | 2012-08-07 | 2012-08-07 | Soybean meal-based adhesive and preparation method thereof |
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| CN103087672A CN103087672A (en) | 2013-05-08 |
| CN103087672B true CN103087672B (en) | 2015-05-06 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897658B (en) * | 2014-03-19 | 2016-08-17 | 中国林业科学研究院林产化学工业研究所 | Fibre board use double-component dregs of beans base adhesive and application thereof |
| CN104497965B (en) * | 2015-01-26 | 2016-08-17 | 东北林业大学 | The preparation method of waterproof level soy protein adhesives |
| CN104610909B (en) * | 2015-02-26 | 2017-04-12 | 许丽萍 | Aldehyde-free vegetable protein-based wood adhesive as well as preparation and application methods thereof |
| CN104861926A (en) * | 2015-05-26 | 2015-08-26 | 苏鑫 | Preparation method for composite protein adhesive |
| CN105368367A (en) * | 2015-11-18 | 2016-03-02 | 广德县常丰竹木业制品有限公司 | Bamboo wood processing modified plant protein adhesive |
| CN107225630A (en) * | 2016-03-23 | 2017-10-03 | 廊坊华日家具股份有限公司 | A kind of furniture formaldehydeless Scrimber integrated timber and its manufacture method |
| CN108621281A (en) * | 2017-03-16 | 2018-10-09 | 中国林业科学研究院林产化学工业研究所 | A kind of preparation method based on dregs of beans glue particieboard |
| CN109135662A (en) * | 2017-06-15 | 2019-01-04 | 山东绿点环保材料有限公司 | Rubber made from soybean cake and preparation method thereof and the method for producing thistle board using rubber made from soybean cake |
| CN108570305B (en) * | 2018-05-10 | 2021-01-29 | 北京盛大华源科技有限公司 | Soybean-based protein adhesive and preparation method thereof |
| CN110003493A (en) * | 2019-04-15 | 2019-07-12 | 北京林业大学 | In-situ modified dregs of beans, adhesive and the preparation method and application thereof |
| CN113322024B (en) * | 2021-06-08 | 2022-09-02 | 东北林业大学 | Composite water-based crosslinking modifier and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1793269A (en) * | 2005-12-01 | 2006-06-28 | 黄卫宁 | Liquid biological adhesvie using soybean separated protein as base material and production process thereof |
| CN101649179A (en) * | 2009-09-03 | 2010-02-17 | 北京林业大学 | Modified soybean-based adhesive and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793269A (en) * | 2005-12-01 | 2006-06-28 | 黄卫宁 | Liquid biological adhesvie using soybean separated protein as base material and production process thereof |
| CN101649179A (en) * | 2009-09-03 | 2010-02-17 | 北京林业大学 | Modified soybean-based adhesive and preparation method thereof |
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