CN102604587A - Formaldehyde-free adhesive and method for producing formaldehyde-free particle boards by using same - Google Patents
Formaldehyde-free adhesive and method for producing formaldehyde-free particle boards by using same Download PDFInfo
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- CN102604587A CN102604587A CN2012100371695A CN201210037169A CN102604587A CN 102604587 A CN102604587 A CN 102604587A CN 2012100371695 A CN2012100371695 A CN 2012100371695A CN 201210037169 A CN201210037169 A CN 201210037169A CN 102604587 A CN102604587 A CN 102604587A
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Abstract
The invention discloses formaldehyde-free adhesive and method for producing formaldehyde-free particle boards by using the formaldehyde-free adhesive. The formaldehyde-free adhesive is produced by formaldehyde-free raw material, the main components comprise a solid part and a liquid part, the solid part comprises vegetable protein, and the liquid part comprises cross linker, auxiliary material and water. Wood chips material used in the method adopts comprises tree branches, cotton stalks, cornstalks, bean stalks or the mixture of the tree branches, the cotton stalks, the cornstalks and the bean stalks, which are conducted to processes of flaking, air classification, sieving to remove soil, drying, gluing, pavement, rolling, hot-pressing, edge sawing, inspection and the like in sequence. Particle boards at E0 level (GB/T 9846.3-2004),with the free formaldehyde emission being far below 0.5 mg/L, can be manufactured through the method, and free formaldehyde of the particle boards is only from the particle board, so that the problem of formaldehyde emission is thoroughly solved.
Description
Technical field
The present invention relates to building material product and application method thereof, specifically be a kind of no-formaldehyde adhesive and use it to produce the method for formaldehydeless shaving board.
Background technology
At present, no-formaldehyde adhesive has begun to be applied to Wood-based Panel Production, and like the production of wood veneer, core-board, but it is also rarely found to be applied in the production of shaving board and density fiber board.The brush wood and the tankage of the stalk of agricultural, wood industry are burned in the rural area in large quantities, and not only contaminate environment also causes huge waste; If be utilized the production shaving board; Not only having solved the rural area pollution problem, also brought for the rural area to increase income, is a good thing of benefiting the nation and the people.Traditional tackiness agent mainly is " three-aldehyde glue ", i.e. urea-formaldehyde resin, resol and terpolycyantoamino-formaldehyde resin.Wherein cheap because of urea-formaldehyde resin; Therefore excellent property is widely used, but because the raw material of preparation urea-formaldehyde resin includes formaldehyde, in the production of urea-formaldehyde resin and use, has formaldehyde release; And the artificial board that uses the urea-formaldehyde resin adhesive processing also has formaldehyde release; Release period reaches 3～15 years, thereby causes the formaldehyde content in the room air to exceed standard for a long time, and people healthy caused serious harm.The enhancing of Along with people's environmental protection and health perception, and the raising of PARA FORMALDEHYDE PRILLS(91,95) harm understanding, the formaldehydeless wood-based plate of the health of environmental protection will replace the three aldehyde plates of being made by " three-aldehyde glue ".
Summary of the invention
The present invention provides a kind of no-formaldehyde adhesive and uses its method of producing formaldehydeless shaving board, can stop the formaldehyde release problem that tradition " three-aldehyde glue " is brought.
This no-formaldehyde adhesive of the present invention adopts following technical scheme:
1, use the tackiness agent of being produced by the raw material that does not contain formaldehyde, staple is solid part and liquid portion, and solid part is a vegetable-protein, and liquid portion is linking agent, auxiliary material, water.
2, said vegetable-protein is the mixture of defatted soy flour, degreasing Semen Pisi sativi protein powder or degreasing cottonseed meal powder or degreasing castor-oil plant dregs of rice powder or above product; Linking agent is PPE (PAE, SEPIGEL 305 epoxy chloropropane) or tannin or PVA (Z 150PH) material; Auxiliary material is urea, terepthaloyl moietie, USP Kosher, sodium hydroxide, hydrochloric acid, Sodium Benzoate material.
3, the protein contnt in the said vegetable-protein is 30～80%, and weight percent is 20～50%; The weight percent of said linking agent is 1～20%; The weight percent of said auxiliary material is 0.01～10%, and all the other are water.
4, the solid part of said no-formaldehyde adhesive is with the plant protein powder of needs in proportion, be pre-mixed evenly under the normal temperature; The liquid portion of said no-formaldehyde adhesive be with the linking agent of needs and auxiliary material in water in proportion, be pre-mixed, dissolve evenly under the normal temperature.
The method that this use no-formaldehyde adhesive of the present invention is produced formaldehydeless shaving board adopts following technical scheme:
1, adopting shavings raw material is trees branch, cotton stalk, cornstalk, beans stalk, or the mixture to raise variety, successively through flaking, selection by winnowing, screening remove soil, drying, glue-applying technique, mat formation, roll-in, hot pressing, saw limit, inspection process.
2, said flaking is the thin slice that raw material is dug into 0.15～0.5mm, and the selection by winnowing operation is that the marrow of above-mentioned raw materials, native impurity are removed, and screening goes soil, drying process to be equal to the traditional mode of production operation.
3, said glue-applying technique is on solid part to the exsiccant flaking that adds the no-formaldehyde adhesive that measures; The next glue mixer of back entering stirs; The liquid portion that adds the no-formaldehyde adhesive that measures again; Restir evenly after, just can get into next process, mat formation, roll-in, hot pressing, saw limit, inspection process be equal to the traditional mode of production operation.Selecting according to production technique, can be that the intermittent type applying glue is produced, and also can be that the continous way applying glue is produced.
This no-formaldehyde adhesive provided by the invention and use it to produce the method for formaldehydeless shaving board; Because the raw material that wood adhesive adopted is formaldehydeless raw material; Also formaldehydeless release in tackiness agent and artificial board production process can produce the E of free formaldehyde release much smaller than 0.5mg/L
0The shaving board of rank (GB/T9846.3-2004), the free formaldehyde of shaving board only derives from timber itself, and the formaldehyde that has fundamentally solved shaving board discharges problem.Simultaneously, no-formaldehyde adhesive of the present invention is extensive with the raw material sources of producing shaving board, and cost is lower, is fit to suitability for industrialized production.
Embodiment
Embodiment one
This routine employed no-formaldehyde adhesive is a solid phase with the soybean defatted protein powder; The aqueous solution that is mixed with PPE, urea, sodium hydroxide, terepthaloyl moietie is liquid phase; The raw material of shaving board is the wood shavings mixture of branch and cotton bar, and its ratio is 1: 1, does following experiment:
1, material is dug into the thin slice of 0.15～0.5mm, impurity such as bulk material and native sand are removed in the selection by winnowing screening;
2, qualified wood shavings are dried under 130 ± 5 ℃ condition to moisture below 5%;
3, use air pressure to carry, in glue mixer, add the solid part of no-formaldehyde adhesive: account for the solid part of no-formaldehyde adhesive weight percent 40%, and stir, solid part is 100% soybean defatted protein powder;
4, spray glue; The liquid portion that in glue mixer, adds no-formaldehyde adhesive: the liquid portion that accounts for no-formaldehyde adhesive weight percent 60%; And stir, liquid portion is pre-mixed at normal temperatures, dissolves evenly by the PPE of weight percent 15%, 0.1% urea, 0.01% sodium hydroxide, 0.5% terepthaloyl moietie and water;
5, resin added is 60～90 kilograms of (butt)/m
3
6, the hot pressing of mating formation then, hot pressing temperature is 150～180 ℃, and the time is 0.5 minute/mm, and hot pressing pressure is 2.5～3N/mm
2
7, saw limit, finished product detection then.
Detect by GB, the result is following:
| Sequence number | Project | The result | Unit |
| 1 | Thickness | 16 | mm |
| 2 | Density | 0.85 | Kg/cm 3 |
| 3 | MOR | 14.5 | MPa |
| 4 | The 2h thickness swelling rate | 7.2 | ％ |
| 5 | Water ratio | 5.1 | ％ |
| 6 | Internal bond strength | 0.35 | MPa |
| 7 | Show bonding strength | 0.82 | MPa |
| 8 | Plate face nail-holding ability | 1460 | N |
Embodiment two
This routine employed no-formaldehyde adhesive is a solid phase with the mixture of soybean defatted protein powder and degreasing Semen Pisi sativi protein powder; The aqueous solution that is mixed with PPE, urea, sodium hydroxide, USP Kosher is liquid phase; The raw material of shaving board is the wood shavings mixture of branch and beans bar; Its ratio is 2: 1, does following experiment:
1, material is dug into the thin slice of 0.15～0.5mm, impurity such as bulk material and native sand are removed in the selection by winnowing screening;
2, qualified wood shavings are dried under 130 ± 5 ℃ condition to moisture below 5%;
3, use air pressure to carry; The solid part that in glue mixer, adds no-formaldehyde adhesive: the solid part that accounts for no-formaldehyde adhesive weight percent 40%; And stir, solid part was pre-mixed under the normal temperature by weight 1: 1 evenly by soybean defatted protein powder and degreasing Semen Pisi sativi protein powder;
4, spray glue; The liquid portion that in glue mixer, adds no-formaldehyde adhesive: the liquid portion that accounts for no-formaldehyde adhesive weight percent 60%; And stir, liquid portion is pre-mixed at normal temperatures, dissolves evenly by the PPE of weight percent 16%, 0.1% urea, 0.01% sodium hydroxide, 0.6% USP Kosher and water;
5, resin added is 60～90 kilograms of (butt)/m
3
6, the hot pressing of mating formation then, hot pressing temperature is 150～180 ℃, and the time is 0.5 minute/mm, and hot pressing pressure is 2.5～3N/mm
2
7, saw limit, finished product detection then.
Detect by GB, the result is following:
| Sequence number | Project | The result | Unit |
| 1 | Thickness | 16 | mm |
| 2 | Density | 0.81 | Kg/cm 3 |
| 3 | MOR | 15.1 | MPa |
| 4 | The 2h thickness swelling rate | 7.0 | ％ |
| 5 | Water ratio | 5.8 | ％ |
| 6 | Internal bond strength | 0.33 | MPa |
| 7 | Show bonding strength | 0.86 | MPa |
| 8 | Plate face nail-holding ability | 1580 | N |
Embodiment three
This routine employed no-formaldehyde adhesive is a solid phase with the mixture of soybean defatted protein powder and degreasing cottonseed meal powder, and the aqueous solution that is mixed with PVA, urea, sodium hydroxide, Sodium Benzoate is liquid phase, and the raw material of shaving board is a branch, does following experiment:
1, material is dug into the thin slice of 0.15～0.5mm, impurity such as bulk material and native sand are removed in the selection by winnowing screening;
2, qualified wood shavings are dried under 130 ± 5 ℃ condition to moisture below 5%;
3, use air pressure to carry; The solid part that in glue mixer, adds no-formaldehyde adhesive: the solid part that accounts for no-formaldehyde adhesive weight percent 35%; And stir, solid part was pre-mixed under the normal temperature by weight 1: 1 evenly by soybean defatted protein powder and degreasing cottonseed meal powder;
4, spray glue; The liquid portion that in glue mixer, adds no-formaldehyde adhesive: the liquid portion that accounts for no-formaldehyde adhesive weight percent 65%; And stir, liquid portion is pre-mixed at normal temperatures, dissolves evenly by the PVA of weight percent 12%, 0.1% urea, 0.01% sodium hydroxide, 0.5% Sodium Benzoate and water;
5, resin added is 60～90 kilograms of (butt)/m
3
6, the hot pressing of mating formation then, hot pressing temperature is 150～180 ℃, and the time is 0.5 minute/mm, and hot pressing pressure is 2.5～3N/mm
2
7, saw limit, finished product detection then.
Detect by GB, the result is following:
| Sequence number | Project | The result | Unit |
| 1 | Thickness | 16 | mm |
| 2 | Density | 0.81 | Kg/cm 3 |
| 3 | MOR | 15.5 | MPa |
| 4 | The 2h thickness swelling rate | 6.6 | ％ |
| 5 | Water ratio | 6.8 | ％ |
| 6 | Internal bond strength | 0.39 | MPa |
| 7 | Show bonding strength | 0.89 | MPa |
| 8 | Plate face nail-holding ability | 1620 | N |
In the foregoing description, can material be divided into slightly, fines, coarse fodder is as core layer material, fines is expected as the top layer; Heat pressing process can adopt multilayer that backing plate technology and no backing plate technology are arranged.
Claims (7)
1. no-formaldehyde adhesive is characterized in that: use the tackiness agent of being produced by the raw material that does not contain formaldehyde, staple is solid part and liquid portion, and solid part is a vegetable-protein, and liquid portion is linking agent, auxiliary material, water.
2. a kind of no-formaldehyde adhesive according to claim 1 is characterized in that: said vegetable-protein is the mixture of defatted soy flour, degreasing Semen Pisi sativi protein powder or degreasing cottonseed meal powder or degreasing castor-oil plant dregs of rice powder or above product; Said linking agent is PPE (PAE, SEPIGEL 305 epoxy chloropropane) or tannin or PVA (Z 150PH) material; Said auxiliary material is urea, terepthaloyl moietie, USP Kosher, sodium hydroxide, hydrochloric acid, Sodium Benzoate material.
3. a kind of no-formaldehyde adhesive according to claim 1 and 2 is characterized in that: the protein contnt in the said vegetable-protein is 30～80%, and weight percent is 20～50%; The weight percent of said linking agent is 1～20%; The weight percent of said auxiliary material is 0.01～10%, and all the other are water.
4. a kind of no-formaldehyde adhesive according to claim 1 is characterized in that: the solid part of said no-formaldehyde adhesive is with the plant protein powder of needs in proportion, be pre-mixed evenly under the normal temperature; The liquid portion of said no-formaldehyde adhesive be with the linking agent of needs and auxiliary material in water in proportion, be pre-mixed, dissolve evenly under the normal temperature.
5. method of using no-formaldehyde adhesive to produce formaldehydeless shaving board; It is characterized in that: the shavings raw material of employing is trees branch, cotton stalk, cornstalk, beans stalk; Or the mixture to raise variety, successively through flaking, selection by winnowing, screening remove soil, drying, glue-applying technique, mat formation, roll-in, hot pressing, saw limit, inspection process.
6. a kind of method of using no-formaldehyde adhesive to produce formaldehydeless shaving board according to claim 5 is characterized in that: said flaking is the thin slice that raw material is dug into 0.15～0.5mm; Said selection by winnowing operation is that the marrow of above-mentioned raw materials, native impurity are removed; Said screening goes soil, drying process to be equal to the traditional mode of production operation.
7. a kind of method of using no-formaldehyde adhesive to produce formaldehydeless shaving board according to claim 5; It is characterized in that: said glue-applying technique is on solid part to the exsiccant flaking that adds the no-formaldehyde adhesive that measures; The next glue mixer of back entering stirs; The liquid portion that adds the no-formaldehyde adhesive that measures again after restir is even, just can get into next process; Saidly mat formation, roll-in, hot pressing, saw limit, inspection process be equal to the traditional mode of production operation.
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| CN2012100371695A CN102604587A (en) | 2012-02-10 | 2012-02-10 | Formaldehyde-free adhesive and method for producing formaldehyde-free particle boards by using same |
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|---|---|---|---|
| CN2012100371695A CN102604587A (en) | 2012-02-10 | 2012-02-10 | Formaldehyde-free adhesive and method for producing formaldehyde-free particle boards by using same |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059598A (en) * | 2014-06-19 | 2014-09-24 | 东营人造板厂 | Method for manufacturing soybean protein modified adhesive formaldehyde-free medium-density fiberboard |
| CN104830270A (en) * | 2015-05-17 | 2015-08-12 | 陈迎霞 | Modified jatropha curcas adhesive and preparation method thereof |
| CN104999538A (en) * | 2015-08-05 | 2015-10-28 | 常州市鼎日环保科技有限公司 | Method for manufacturing particleboard with zero formaldehyde emission using cornstalk |
| CN105058542A (en) * | 2015-07-31 | 2015-11-18 | 湖北省林业科学研究院 | Vegetable albumen glue shaving board and preparation technology thereof |
| CN105235044A (en) * | 2014-07-09 | 2016-01-13 | 高云 | Manufacturing method for wood-based cotton stalk composite artificial board |
| CN105838304A (en) * | 2016-04-05 | 2016-08-10 | 宁波中科朝露新材料有限公司 | Soybean-based formaldehydeless adhesive used for chipboards, and application method thereof |
| CN105856379A (en) * | 2016-04-14 | 2016-08-17 | 华南理工大学 | Environment-friendly high-strength lignocellulose plate and preparing method thereof |
| CN105969304A (en) * | 2016-05-31 | 2016-09-28 | 北京林业大学 | Soybean aldehyde-free adhesive and preparation method thereof |
| CN106753221A (en) * | 2016-12-22 | 2017-05-31 | 北京林业大学 | A kind of modified vegetable protein adhesive and preparation method and application |
| CN107365566A (en) * | 2016-05-12 | 2017-11-21 | 中国林业科学研究院木材工业研究所 | One kind is without aldehyde Modified soy-based protein adhesive and its manufacture method |
| CN110341004A (en) * | 2019-07-15 | 2019-10-18 | 天津海源汇科技有限公司 | A kind of application technique of glued board plant fiber adhesive |
| CN111808554A (en) * | 2020-06-04 | 2020-10-23 | 深圳昌茂粘胶新材料有限公司 | Preparation method of water-resistant environment-friendly beer label glue |
| CN113355050A (en) * | 2021-07-12 | 2021-09-07 | 武秀英 | Biological aldehyde-free glue, biological composite material and preparation method thereof |
| CN114836170A (en) * | 2022-04-24 | 2022-08-02 | 山东千森木业集团有限公司 | High-strength multifunctional plant protein adhesive and preparation method and application thereof |
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| CN101412898A (en) * | 2007-10-18 | 2009-04-22 | 朱锦 | Novel non-formaldehyde wood adhesive and preparation thereof |
| CN101928546A (en) * | 2010-03-15 | 2010-12-29 | 田志壮 | Formaldehyde-free wood adhesive and preparation method thereof |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059598A (en) * | 2014-06-19 | 2014-09-24 | 东营人造板厂 | Method for manufacturing soybean protein modified adhesive formaldehyde-free medium-density fiberboard |
| CN105235044A (en) * | 2014-07-09 | 2016-01-13 | 高云 | Manufacturing method for wood-based cotton stalk composite artificial board |
| CN104830270A (en) * | 2015-05-17 | 2015-08-12 | 陈迎霞 | Modified jatropha curcas adhesive and preparation method thereof |
| CN105058542B (en) * | 2015-07-31 | 2017-05-17 | 湖北省林业科学研究院 | Vegetable albumen glue shaving board and preparation technology thereof |
| CN105058542A (en) * | 2015-07-31 | 2015-11-18 | 湖北省林业科学研究院 | Vegetable albumen glue shaving board and preparation technology thereof |
| CN104999538B (en) * | 2015-08-05 | 2017-04-12 | 刘志伟 | Method for manufacturing particleboard with zero formaldehyde emission using cornstalk |
| CN104999538A (en) * | 2015-08-05 | 2015-10-28 | 常州市鼎日环保科技有限公司 | Method for manufacturing particleboard with zero formaldehyde emission using cornstalk |
| CN105838304A (en) * | 2016-04-05 | 2016-08-10 | 宁波中科朝露新材料有限公司 | Soybean-based formaldehydeless adhesive used for chipboards, and application method thereof |
| CN105856379A (en) * | 2016-04-14 | 2016-08-17 | 华南理工大学 | Environment-friendly high-strength lignocellulose plate and preparing method thereof |
| CN107365566B (en) * | 2016-05-12 | 2020-08-28 | 中国林业科学研究院木材工业研究所 | Aldehyde-free modified soy-based protein adhesive and preparation method thereof |
| CN107365566A (en) * | 2016-05-12 | 2017-11-21 | 中国林业科学研究院木材工业研究所 | One kind is without aldehyde Modified soy-based protein adhesive and its manufacture method |
| CN105969304A (en) * | 2016-05-31 | 2016-09-28 | 北京林业大学 | Soybean aldehyde-free adhesive and preparation method thereof |
| CN105969304B (en) * | 2016-05-31 | 2018-12-18 | 北京林业大学 | A kind of aldehyde-free cement and preparation method thereof |
| CN106753221A (en) * | 2016-12-22 | 2017-05-31 | 北京林业大学 | A kind of modified vegetable protein adhesive and preparation method and application |
| CN110341004A (en) * | 2019-07-15 | 2019-10-18 | 天津海源汇科技有限公司 | A kind of application technique of glued board plant fiber adhesive |
| CN111808554A (en) * | 2020-06-04 | 2020-10-23 | 深圳昌茂粘胶新材料有限公司 | Preparation method of water-resistant environment-friendly beer label glue |
| CN111808554B (en) * | 2020-06-04 | 2022-04-08 | 深圳昌茂粘胶新材料有限公司 | Preparation method of water-resistant environment-friendly beer label glue |
| CN113355050A (en) * | 2021-07-12 | 2021-09-07 | 武秀英 | Biological aldehyde-free glue, biological composite material and preparation method thereof |
| CN114836170A (en) * | 2022-04-24 | 2022-08-02 | 山东千森木业集团有限公司 | High-strength multifunctional plant protein adhesive and preparation method and application thereof |
| CN114836170B (en) * | 2022-04-24 | 2023-07-04 | 山东千森木业集团有限公司 | High-strength multifunctional plant protein adhesive and preparation method and application thereof |
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Application publication date: 20120725 |