CN114958299A - Aldehyde-free adhesive for artificial board - Google Patents
Aldehyde-free adhesive for artificial board Download PDFInfo
- Publication number
- CN114958299A CN114958299A CN202210808853.2A CN202210808853A CN114958299A CN 114958299 A CN114958299 A CN 114958299A CN 202210808853 A CN202210808853 A CN 202210808853A CN 114958299 A CN114958299 A CN 114958299A
- Authority
- CN
- China
- Prior art keywords
- free adhesive
- water
- aldehyde
- artificial board
- ammonium chloride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 36
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 36
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 27
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 19
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 18
- 235000013312 flour Nutrition 0.000 claims abstract description 18
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 18
- 235000010469 Glycine max Nutrition 0.000 claims abstract description 14
- 244000068988 Glycine max Species 0.000 claims abstract description 13
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 12
- 235000009566 rice Nutrition 0.000 claims abstract description 12
- 239000011343 solid material Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 14
- 241000209094 Oryza Species 0.000 claims description 11
- 235000019764 Soybean Meal Nutrition 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000004455 soybean meal Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 4
- 238000009472 formulation Methods 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000002360 preparation method Methods 0.000 abstract description 10
- 239000002994 raw material Substances 0.000 abstract description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 1
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 238000004026 adhesive bonding Methods 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007580 dry-mixing Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- -1 saccharide compound Chemical class 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides an artificial board formaldehyde-free adhesive, which comprises the following components in percentage by weight (%): 8-12 parts of polyvinyl alcohol, 8-12 parts of glutinous rice flour, 24-28 parts of soybean flour, 2.4-3.6 parts of ammonium chloride and water. The invention has simple preparation, and the solid materials are mixed uniformly and then added with water and stirred to form the artificial board formaldehyde-free adhesive. Or mixing and dissolving the ammonium chloride and part of water, and then fully mixing and stirring the mixture with other solid materials and the balance of water to obtain the ammonium chloride. Or the raw materials of the product are easy to obtain, the product can be directly used without modifying a production line, the use cost is reduced, and the product has stable performance and is environment-friendly and safe.
Description
Technical Field
The present invention relates to an adhesive, particularly to an aldehyde-free adhesive for artificial boards, which is suitable for the production of artificial fiberboards, shaving boards, etc.
Background
Most artificial board enterprises in China use a large amount of formaldehyde-containing adhesives in production, and when the content of formaldehyde in air exceeds the standard, the formaldehyde seriously harms the environment and human health. The use of formaldehyde-free adhesives by a few enterprises faces two major challenges: firstly, the price is expensive, and secondly, the equipment needs to be modified. Such as:
chinese patent application No. CN201210390439.0 discloses an aldehyde-free soybean powder adhesive, which is prepared from 100 parts of water, 20-70 parts of soybean powder, 0.1-10 parts of a modifier, 20-120 parts of a cross-linking agent, 0.05-5 parts of a regulator and 0.1-3 parts of a reducing agent. Not only has excellent gluing performance and good water resistance, but also has low production cost, long storage period, convenient transportation and convenient use. The method has the characteristics of simple preparation, good controllability, easy operation, easy industrial production, low production cost and the like.
Chinese patent application No. CN201010237295.6 discloses an aldehyde-free adhesive and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out oxidation treatment on polyvinyl alcohol by using an oxidant to obtain oxidation modified polyvinyl alcohol, wherein the average polymerization degree of the polyvinyl alcohol is 1000-2500; (2) crosslinking the oxidized and modified polyvinyl alcohol by using a crosslinking agent to obtain crosslinked polyvinyl alcohol; (3) and adding a surfactant and a filler into the solution of the crosslinked polyvinyl alcohol, and uniformly stirring to obtain the aldehyde-free adhesive. The formaldehyde-free adhesive can also completely replace white latex (polyvinyl acetate emulsion) in many application fields; it can also be used as the adhesive of inner wall building materials and the adhesive of inner wall tiles, wallpapers, wall coverings, carpets, office supplies and leather.
Chinese patent application No. CN202010396936.6 provides an aldehyde-free environment-friendly adhesive and a preparation method thereof. The formaldehyde-free environment-friendly glue comprises the following components of carbohydrate, urea, a pH regulator, a curing agent and water. Adding water into the reaction kettle, heating and adding a saccharide compound; continuously heating and adjusting the pH value to 3-6; adding urea in three batches, wherein the pH value of the solution needs to be adjusted in the process; finally, cooling and discharging. The aldehyde-free environment-friendly adhesive prepared by the method adopts nontoxic, harmless and environment-friendly production raw materials and auxiliary materials. The glue applying process and the glue applying amount are almost the same as those of urea-formaldehyde glue, and glue enterprises can use the glue without changing the original production process. And the aldehyde-free environment-friendly glue is superior to products produced by using urea-formaldehyde glue in modulus, strength and other performance indexes. The preparation process is simple, and the essence of the preparation reaction is polycondensation; the production process is green and environment-friendly, and no waste water, waste gas, waste residue or volatile substances are generated.
Chinese patent application No. CN201610208122.9 discloses a soybean-based formaldehyde-free adhesive for a particle board and an application method thereof, wherein the soybean-based formaldehyde-free adhesive is prepared from the following raw materials in parts by weight: soybean derivatives: 10-30 parts of an acid-base regulator: 0.1-1 part of a cross-linking agent: 1-30 parts of a mildew preventive: 0.1-1 part of leveling agent: 0.1-1 part of water: 10-100 parts of a tackifier: 5-50 parts. The method adopts a multi-component gluing mode, solves the problems that soybean glue cannot be evenly glued in the market and the water content of the wood shavings after gluing is too high, and solves the problems that the soybean glue has poor initial viscosity when preparing the shaving board, the preforming performance after gluing the wood shavings is poor, the static bending strength of the board is low, and the water absorption thickness expansion rate is large by using the tackifier.
Disclosure of Invention
The invention aims to provide an artificial board aldehyde-free adhesive. The production line does not need to be modified, and the device can be directly used.
The purpose of the invention is realized by the following scheme: an artificial board aldehyde-free adhesive comprises the following components in percentage by weight (%):
polyvinyl alcohol 8-12
8-12 parts of glutinous rice flour
Soybean flour 24-28
Ammonium chloride 2.4-3.6
The balance of water.
Wherein the content of the first and second substances,
the weight percentage of the polyvinyl alcohol in the formula is as follows: 8-12% of any value, e.g., 8, 9, 10 or 12%.
The glutinous rice flour comprises the following components in percentage by weight in the formula: 8-12% of any value, e.g., 8, 9, 10 or 12%.
The soybean flour comprises the following components in percentage by weight: 22-28%, e.g., 22, 23, 24, 25, 26, 27, or 28%.
The ammonium chloride comprises the following components in percentage by weight: 2.4-3.6%, e.g., 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.4, 3.5, or 3.6%.
The invention has simple preparation, and the solid materials are mixed evenly and then added with water to be stirred into the aldehyde-free adhesive for the artificial board.
Or mixing and dissolving the ammonium chloride and part of water, and then fully mixing and stirring the mixture with other solid materials and the balance of water to obtain the ammonium chloride.
In order to improve the stability of the adhesive, the adhesive is further prepared by the following steps:
1) adding polyvinyl alcohol and water into a reaction kettle, heating to 30 ℃, slowly adding glutinous rice flour, stirring at 2500rpm, heating to 95 ℃, and continuously stirring for 30 minutes;
2) cooling to below 70 ℃, continuing stirring, slowly adding the soybean meal, heating to above 90 ℃ after the soybean meal is added, and continuously stirring for 30 minutes;
3) adding ammonium chloride, keeping the temperature above 90 ℃, and continuously stirring for 30 minutes;
4) cooling to room temperature, adjusting pH value to 6.5-7, and using after 25-30 seconds of viscosity.
The invention has the advantages that: the raw materials are easy to obtain, the production line is not required to be modified, the raw materials can be directly used, the use cost is reduced, and the product has stable performance and is environment-friendly and safe.
Detailed Description
Example 1
An artificial board aldehyde-free adhesive comprises the following components in percentage by weight (%):
polyvinyl alcohol 8
Glutinous rice flour 12
Soybean powder 24
Ammonium chloride 2.4
The balance of water;
after dry mixing of the solid materials, adding water and fully stirring to obtain the product. Or, further, the preparation method comprises the following steps:
1) adding polyvinyl alcohol and water into a reaction kettle, heating to 30 ℃, slowly adding glutinous rice flour, stirring at 2500rpm, heating to 95 ℃, and continuously stirring for 30 minutes;
2) cooling to below 70 ℃, continuing to stir, slowly adding the soybean meal, heating to above 90 ℃ after the soybean meal is added, and continuously stirring for 30 minutes;
3) adding ammonium chloride, keeping the temperature above 90 ℃, and continuously stirring for 30 minutes;
4) cooling to room temperature, adjusting pH value to 6.5-7, and using after 25-30 seconds of viscosity.
Example 2
An artificial board aldehyde-free adhesive comprises the following components in percentage by weight (%):
polyvinyl alcohol 12
Glutinous rice flour 8
Soybean meal 28
Ammonium chloride 3.6
The balance of water;
after dry mixing of the solid materials, adding water and fully stirring to obtain the product. Or mixing and dissolving the ammonium chloride and part of water, and then fully mixing and stirring the mixture with other solid materials and the balance of water to obtain the ammonium chloride.
Example 3
An artificial board aldehyde-free adhesive comprises the following components in percentage by weight (%):
polyvinyl alcohol 10
Glutinous rice flour 10
Soybean flour 25
Ammonium chloride 3
The balance of 52% water;
the preparation method comprises the following steps:
1) adding polyvinyl alcohol and water into a reaction kettle, heating to 30 ℃, slowly adding glutinous rice flour, stirring at 2500rpm, heating to 95 ℃, and continuously stirring for 30 minutes;
2) cooling to below 70 ℃, continuing stirring, slowly adding the soybean meal, heating to above 90 ℃ after the soybean meal is added, and continuously stirring for 30 minutes;
3) adding ammonium chloride, keeping the temperature above 90 ℃, and continuously stirring for 30 minutes;
4) cooling to room temperature, adjusting pH value to 6.5-7, and using after 25-30 seconds of viscosity.
Claims (8)
1. The artificial board formaldehyde-free adhesive is characterized by comprising the following components in percentage by weight:
polyvinyl alcohol 8-12
8-12 parts of glutinous rice flour
Soybean flour 24-28
Ammonium chloride 2.4-3.6
The balance of water.
2. The wood-based plate aldehyde-free adhesive of claim 1, wherein the polyvinyl alcohol is present in the formulation in an amount of about 8 to about 12 wt%, including about 8, 9, 10, or 12 wt%.
3. The artificial board aldehyde-free adhesive according to claim 1, wherein the glutinous rice flour is contained in the formulation in an amount of any of 8 to 12% by weight, including 8, 9, 10 or 12%.
4. The artificial board aldehyde-free adhesive of claim 1, wherein the soy flour is present in the formulation in an amount of any of 22-28% by weight, including 22, 23, 24, 25, 26, 27, or 28%.
5. The wood-based plate aldehyde-free adhesive of claim 1, wherein the ammonium chloride is present in the formulation in an amount of 2.4-3.6 wt%, including 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.4, 3.5, or 3.6 wt%.
6. A method for preparing artificial board aldehyde-free adhesive according to any of claims 1 to 5, wherein the solid materials are mixed uniformly and stirred with water to form the artificial board aldehyde-free adhesive.
7. The method for preparing artificial board aldehyde-free adhesive according to any of claims 1 to 5, wherein the adhesive is prepared by mixing and dissolving ammonium chloride with part of water, and then fully mixing and stirring with other solid materials and the balance of water.
8. The method for preparing artificial board aldehyde-free adhesive according to claim 6, comprising the following steps:
1) adding polyvinyl alcohol and water into a reaction kettle, heating to 30 ℃, slowly adding glutinous rice flour, stirring at 2500rpm, heating to 95 ℃, and continuously stirring for 30 minutes;
2) cooling to below 70 ℃, continuing stirring, slowly adding the soybean meal, heating to above 90 ℃ after the soybean meal is added, and continuously stirring for 30 minutes;
3) adding ammonium chloride, keeping the temperature above 90 ℃, and continuously stirring for 30 minutes;
4) cooling to room temperature, adjusting pH value to 6.5-7, and using after 25-30 seconds of viscosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210808853.2A CN114958299A (en) | 2022-07-11 | 2022-07-11 | Aldehyde-free adhesive for artificial board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210808853.2A CN114958299A (en) | 2022-07-11 | 2022-07-11 | Aldehyde-free adhesive for artificial board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114958299A true CN114958299A (en) | 2022-08-30 |
Family
ID=82969367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210808853.2A Pending CN114958299A (en) | 2022-07-11 | 2022-07-11 | Aldehyde-free adhesive for artificial board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114958299A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045160A (en) * | 2012-10-16 | 2013-04-17 | 宁波中科朝露新材料有限公司 | Formaldehyde-free soybean powder adhesive and preparation method thereof |
| CN104690805A (en) * | 2015-02-05 | 2015-06-10 | 安徽忠盛新型装饰材料有限公司 | High-strength environment-friendly composite board and preparation method thereof |
| CN106590523A (en) * | 2016-11-10 | 2017-04-26 | 简正品 | Soybean-based formaldehyde-free adhesive and application methods thereof |
| CN110903781A (en) * | 2019-11-27 | 2020-03-24 | 南京格润包装材料有限公司 | Environment-friendly glue and production process thereof |
| CN111500232A (en) * | 2020-05-12 | 2020-08-07 | 天津缔木博科技有限公司 | Aldehyde-free environment-friendly adhesive and preparation method thereof |
-
2022
- 2022-07-11 CN CN202210808853.2A patent/CN114958299A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045160A (en) * | 2012-10-16 | 2013-04-17 | 宁波中科朝露新材料有限公司 | Formaldehyde-free soybean powder adhesive and preparation method thereof |
| CN104690805A (en) * | 2015-02-05 | 2015-06-10 | 安徽忠盛新型装饰材料有限公司 | High-strength environment-friendly composite board and preparation method thereof |
| CN106590523A (en) * | 2016-11-10 | 2017-04-26 | 简正品 | Soybean-based formaldehyde-free adhesive and application methods thereof |
| CN110903781A (en) * | 2019-11-27 | 2020-03-24 | 南京格润包装材料有限公司 | Environment-friendly glue and production process thereof |
| CN111500232A (en) * | 2020-05-12 | 2020-08-07 | 天津缔木博科技有限公司 | Aldehyde-free environment-friendly adhesive and preparation method thereof |
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Application publication date: 20220830 |