CN107090271B - Soybean protein adhesive and preparation method thereof - Google Patents
Soybean protein adhesive and preparation method thereof Download PDFInfo
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- CN107090271B CN107090271B CN201710484070.2A CN201710484070A CN107090271B CN 107090271 B CN107090271 B CN 107090271B CN 201710484070 A CN201710484070 A CN 201710484070A CN 107090271 B CN107090271 B CN 107090271B
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- soybean protein
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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
- C09J189/00—Adhesives based on proteins; Adhesives based on derivatives thereof
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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
- 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
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
Abstract
The invention discloses a soy protein adhesive and a preparation method thereof. The adhesive is prepared from the following raw materials in parts by weight: 100 parts of water, 10-30 parts of soybean protein powder, 0.5-5 parts of alkali, 5-60 parts of polyol substances, 5-20 parts of cross-linking agent, 0.1-0.5 part of preservative and 0.1-2 parts of defoaming agent. Preparing water, alkali and polyalcohol into modified solution, stirring for 5-30 min, adding soybean protein powder, antiseptic and defoaming agent, stirring for 30-90 min to form uniform colloid, adding crosslinking agent, and stirring for 30-90 min to obtain soybean protein adhesive. The adhesive prepared by the invention has no ammonia pollution or formaldehyde pollution, achieves the aim of good environmental protection performance and water resistance, and has the advantage of biodegradability.
Description
Technical Field
The invention belongs to the field of adhesives and preparation thereof, and particularly relates to a soy protein adhesive mainly used for wood adhesives and a preparation method thereof.
Background
Currently, urea-formaldehyde resins that release formaldehyde are mainly used as adhesives in wood adhesives. With the concern of people on the harm of formaldehyde release to human health of wood boards, some adhesives without formaldehyde, such as soy protein adhesives, begin to attract attention of people. Because the soybean protein adhesive has poor water resistance, the soybean protein adhesive can be used for a wood adhesive to meet the requirement of a use environment on the water resistance only by improving the water resistance, Chinese invention patents of certain modification technical means such as application No. 102719217A (2012.10.10) adopt alkali and a modifier for matching modification, wherein the modifier is preferably urea to improve the water resistance; the modifier used in the chinese invention patent application No. 101629019a (2010.01.20) was also used in urea. Due to the addition of urea in the adhesive, the wood board made of the adhesive with urea added can release ammonia gas, and cause ammonia pollution to the indoor environment. The traditional ammonia pollution is mainly caused by adding urea into concrete as an antifreezing agent and adopting ammonia water as an additive during the finishing of interior decoration materials. Ammonia is a colorless and strong irritant odor gas, which can corrode and irritate the skin tissue in contact with it, absorb water in the skin tissue, denature tissue proteins, saponify tissue fat, and destroy cell membrane structure. In addition to the erosive effects, excessive concentrations can also cause cardiac arrest and respiratory arrest by adverse effects on trigeminal nerve endings. The urea is used as a modifier of the soy protein adhesive, so that ammonia pollution of the use environment of the product can be increased, and human health can be harmed. Meanwhile, some adhesives produced by using petrochemical resources as main raw materials, such as polyamide epichlorohydrin resin (PAE) and the like, as a crosslinking agent of the soy protein adhesive, cannot be biodegradable, and wastes thereof cause environmental pollution.
Disclosure of Invention
One of the purposes of the invention is to provide a soy protein adhesive.
The soybean protein adhesive is prepared from the following raw materials in parts by weight: 100 parts of water, 10-30 parts of soybean protein powder, 0.5-5 parts of alkali, 5-60 parts of polyol substances, 5-20 parts of cross-linking agent, 0.1-0.5 part of preservative and 0.1-2 parts of defoaming agent.
Specifically, the soybean protein powder is prepared by grinding soybean meal which is a residue of soybean processing, wherein the protein content is more than or equal to 50%.
Preferably, the soybean protein powder is low-denatured soybean protein powder; the low denatured soybean protein powder is prepared by processing defatted soybean meal obtained by flash evaporation and desolventizing process of soybean as raw material, and has better dispersibility in water.
Specifically, the alkali is sodium hydroxide.
Specifically, the polyol substance is one or a mixture of two of propylene glycol, glycerol and sorbitol.
Specifically, the cross-linking agent is dialdehyde starch.
Specifically, the preservative is benzisothiazolin-3-one.
Specifically, the defoaming agent is methyl silicone oil or soybean vegetable oil.
The adhesive is modified by mixing alkali and the polyalcohol substances, and the polyalcohol substances have a plasticizing effect on the soybean protein, can prevent the soybean protein from being excessively degraded due to alkali modification, maintain the spatial structure of proper degradation of the soybean protein, and enable the soybean protein adhesive to have good water resistance; meanwhile, dialdehyde starch is adopted as a cross-linking agent, is a carbonyl compound with high reaction activity, can perform cross-linking reaction with soybean protein, is mainly prepared from renewable plant resources with wide sources, is more environment-friendly than other cross-linking agents which are mainly prepared from petrochemical resources, such as polyamide epichlorohydrin resin (PAE) and the like, and has the advantage of biodegradability.
The invention also aims to provide a preparation method of the soybean protein adhesive, which comprises the following steps:
preparing 100 parts by weight of water, 0.5-5 parts by weight of alkali and 5-60 parts by weight of polyol substance into modified solution, stirring for 5-30 minutes, adding 10-30 parts by weight of soybean protein powder, 0.1-0.5 part by weight of preservative and 0.1-2 parts by weight of defoaming agent, stirring for 30-90 minutes to form uniform colloid, adding 5-20 parts by weight of cross-linking agent, and stirring for 30-90 minutes to obtain the soybean protein adhesive.
The preparation method of the invention does not add ammonia substances such as urea formaldehyde and the like in the production process, and does not add formaldehyde at the same time, and the prepared adhesive has no ammonia pollution and formaldehyde pollution, thereby achieving the purpose of good environmental protection performance and water resistance. The dialdehyde starch which is a renewable resource is used as the cross-linking agent, and the cross-linking agent has natural resource and environmental advantages compared with the cross-linking agent which takes other petrochemical resources as main raw materials, and the environmental protection performance of the adhesive is further improved from the biodegradable perspective.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1:
adding 200g of water, 100g of glycerol and 20g of sodium hydroxide with the mass solubility of 10% into a 500mL beaker to prepare a modified solution, stirring for 10 minutes, and uniformly dispersing to obtain a modified mixed solution; then adding 35 g of low-denatured soybean protein powder (purchased from Kunhua biotechnology limited company in Henan province, the weight percentage content of protein is more than or equal to 50%), 0.3g of benzisothiazolin-3-one and 2g of methyl silicone oil into the mixed solution, stirring for 45 minutes to form a uniformly mixed colloid, adding 20g of dialdehyde starch, stirring for 60 minutes to obtain the soybean protein adhesive, and testing the dry strength and the wet strength to respectively obtain the soybean protein adhesive with the dry strength of 1.93MPa and the wet strength of 0.85 MPa.
Example 2:
adding 200g of water, 100g of sorbitol and 20g of sodium hydroxide with the mass solubility of 10% into a 500mL beaker to prepare a modified solution, stirring for 10 minutes, and uniformly dispersing to obtain a modified mixed solution; then adding 40 g of low-denatured soybean protein powder (purchased from Kunhua biotechnology limited company in Henan province, the weight percentage content of protein is more than or equal to 50%), 0.3g of benzisothiazolin-3-one and 2g of methyl silicone oil into the mixed solution, stirring for 45 minutes to form a uniformly mixed colloid, adding 15g of dialdehyde starch, stirring for 60 minutes to obtain the soybean protein adhesive, and testing the dry strength and the wet strength to respectively obtain the soybean protein adhesive with the dry strength of 1.86MPa and the wet strength of 0.81 MPa.
Example 3:
adding 200g of water, 50g of glycerol, 50g of sorbitol and 20g of sodium hydroxide with the mass solubility of 10% into a 500mL beaker to prepare a modified solution, stirring for 10 minutes, and uniformly dispersing to obtain a modified mixed solution; then adding 40 g of low-denatured soybean protein powder (purchased from Kunhua biotechnology limited company in Henan province, the weight percentage content of protein is more than or equal to 50%), 0.3g of benzisothiazolin-3-one and 2g of methyl silicone oil into the mixed solution, stirring for 45 minutes to form a uniformly mixed colloid, adding 20g of dialdehyde starch, stirring for 60 minutes to obtain the soybean protein adhesive, and testing the dry strength and the wet strength to respectively obtain the soybean protein adhesive with the dry strength of 2.15MPa and the wet strength of 0.96 MPa.
The soybean protein is modified by alkali and a polyalcohol substance, and research experiments show that the polyalcohol substance can prevent the soybean protein from being excessively degraded due to simple alkali modification, hydroxyl in the polyalcohol substance can react with the group of the soybean protein, and the polyalcohol substance plays a role in plasticization in the structure of the soybean protein, so that the degradation degree of the soybean protein by alkali can be reduced; and the polyalcohol substance has strong dissolving capacity to polar substances, the peptide chain structure of the soybean protein contains a plurality of polar groups, the polyalcohol has an improvement effect on improving the solubility of the soybean protein in water, and is beneficial to obtaining a stable space structure of the soybean protein, and amino groups in the molecular structure of the soybean protein can perform a crosslinking reaction with dialdehyde starch serving as a crosslinking agent to form the soybean protein adhesive with good water resistance and bonding strength.
The degradation degree of the soybean protein is reduced by modifying the urea with the alkali, and the degradation degree of the soybean protein is reduced because ammonia gas, carbonate and water can be generated by the reaction of the alkali and the urea, but the ammonia pollution can be caused by the addition of the urea, and the invention does not add the urea and ammonia substances; meanwhile, the cross-linking agent adopts dialdehyde starch which is prepared from renewable plant resources with wide sources as raw materials, and has the advantages of environmental protection and biodegradability compared with other cross-linking agents prepared from petrochemical resources as main raw materials, such as polyamide epichlorohydrin resin (PAE).
The bonding strength is measured according to the specification of the national standard GB/T17657-1999, and the strength test method of the three-layer poplar board is as follows: three poplar veneers with the specification of 630mmx630mmx3mm are subjected to gluing, cold pressing and hot pressing to obtain the poplar plywood, wherein the single-side gluing amount is 80g, the poplar plywood is subjected to cold pressing for 20 minutes under 1.0MPa immediately after the gluing, and then hot pressing is carried out for 8 minutes under the hot pressing condition: the temperature is 120 ℃, and the pressure is 1.2 MPa; and (3) ageing the three-layer poplar board subjected to hot pressing for 24 hours at room temperature, then sawing the three-layer poplar board into an A-type sample, and testing the A-type sample on a universal mechanical testing machine to obtain the dry strength. Wet strength was obtained by immersing type a specimens for 3 hours at 63 ℃ and then testing immediately on a universal mechanical tester after cooling for ten minutes at room temperature. The dry strength and wet strength in the examples of the present invention were measured under the above conditions.
Claims (2)
1. The soy protein adhesive is characterized by being prepared from the following raw materials in parts by weight: 200g of water, 50g of glycerol, 50g of sorbitol, 20g of sodium hydroxide with the mass solubility of 10%, 40 g of low-denatured soybean protein powder, 0.3g of benzisothiazolin-3-one, 2g of methyl silicone oil and 20g of dialdehyde starch, wherein the weight percentage content of protein in the low-denatured soybean protein powder is more than or equal to 50%.
2. A method for preparing the soy protein adhesive of claim 1, comprising the steps of:
adding 200g of water, 50g of glycerol, 50g of sorbitol and 20g of sodium hydroxide with the mass solubility of 10% into a 500mL beaker to prepare a modified solution, stirring for 10 minutes, and uniformly dispersing to obtain a modified mixed solution; and then adding 40 g of low-denatured soybean protein powder, 0.3g of benzisothiazolin-3-one and 2g of methyl silicone oil into the mixed solution, stirring for 45 minutes to form a uniformly mixed colloid, adding 20g of dialdehyde starch, and stirring for 60 minutes to obtain the soybean protein adhesive, wherein the weight percentage of protein in the low-denatured soybean protein powder is more than or equal to 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710484070.2A CN107090271B (en) | 2017-06-23 | 2017-06-23 | Soybean protein adhesive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710484070.2A CN107090271B (en) | 2017-06-23 | 2017-06-23 | Soybean protein adhesive and preparation method thereof |
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| CN107090271A CN107090271A (en) | 2017-08-25 |
| CN107090271B true CN107090271B (en) | 2021-05-04 |
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| CN201710484070.2A Active CN107090271B (en) | 2017-06-23 | 2017-06-23 | Soybean protein adhesive and preparation method thereof |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108084959A (en) * | 2017-12-06 | 2018-05-29 | 常州杰轩纺织科技有限公司 | A kind of preparation method of composite modified soybean protein adhesive |
| CN108395870A (en) * | 2018-02-11 | 2018-08-14 | 河北宜美康环保科技股份有限公司 | A kind of soybean protein wood adhesive and preparation method thereof |
| CN109054735A (en) * | 2018-06-20 | 2018-12-21 | 滁州市光威化工有限公司 | A kind of soybean protein cigarette is with packing glue and preparation method thereof |
| CN108753250A (en) * | 2018-06-25 | 2018-11-06 | 福建农林大学 | A kind of adhesive and preparation method thereof prepared as raw material using waste paper |
| CN109796773A (en) * | 2019-01-23 | 2019-05-24 | 福建农林大学 | A kind of vegetable protein adhesive and the method for preparing wood-based plate |
| CN112063364B (en) * | 2020-09-14 | 2022-01-28 | 郑州轻工业大学 | Vegetable protein-based formaldehyde-free adhesive |
| CN112143455A (en) * | 2020-10-15 | 2020-12-29 | 东营绿羿环保材料科技有限公司 | Synthetic vegetable protein-based paper tube adhesive and preparation method thereof |
| CN112827370B (en) * | 2021-01-19 | 2022-05-03 | 恩泰环保科技（常州）有限公司 | High-flux composite nanofiltration membrane and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101889064A (en) * | 2007-10-09 | 2010-11-17 | 赫尔克里士公司 | The binder composition that contains linking agent |
| CN103952118A (en) * | 2013-08-05 | 2014-07-30 | 西南林业大学 | Modified soybean protein adhesive and preparation method thereof |
| CN106753223A (en) * | 2016-12-30 | 2017-05-31 | 湖南省林业科学院 | A kind of modified soybean base timber adhesive and preparation method thereof |
-
2017
- 2017-06-23 CN CN201710484070.2A patent/CN107090271B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101889064A (en) * | 2007-10-09 | 2010-11-17 | 赫尔克里士公司 | The binder composition that contains linking agent |
| CN103952118A (en) * | 2013-08-05 | 2014-07-30 | 西南林业大学 | Modified soybean protein adhesive and preparation method thereof |
| CN106753223A (en) * | 2016-12-30 | 2017-05-31 | 湖南省林业科学院 | A kind of modified soybean base timber adhesive and preparation method thereof |
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| CN107090271A (en) | 2017-08-25 |
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