CN105602500A - Biology base urea formaldehyde composite for artificial board - Google Patents
Biology base urea formaldehyde composite for artificial board Download PDFInfo
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- CN105602500A CN105602500A CN201610092778.9A CN201610092778A CN105602500A CN 105602500 A CN105602500 A CN 105602500A CN 201610092778 A CN201610092778 A CN 201610092778A CN 105602500 A CN105602500 A CN 105602500A
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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
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C09J161/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention relates to a biology base urea formaldehyde composite for an artificial board. The composite is formed by compounding urea resin or melamine urea-formaldehyde resin with a biological composite reinforcement material, and the weight ratio of urea resin or melamine urea-formaldehyde resin to the biological composite reinforcement material is (2-9):(8-1) by solid; the biological composite reinforcement material is solid powder prepared from, by weight, 8-50% of protein, 1-10% of fat, 40-89% of cellulose and the balance water and has the granularity of 100-200 mesh. The biology base urea formaldehyde composite is used for manufacturing materials of the artificial board or a straw board, the formaldehyde release amount of the artificial board is greatly decreased, the adhesion of urea-formaldehyde glue to wood materials or crop straw is enhanced, the environment protection requirement is met, the raw material source is widened, and remarkable effects are achieved.
Description
Technical field
The present invention relates to a kind of wood-based plate bio-based urea aldehyde composite.
Background technology
Wood-based plate is class comprehensive utilization forest resourceies, by broken wood shavings, and wood fibre, wood chip, wooden particle passes through rubber polymerStick, through glue mixing, is colded pressing, and the sheet material that the technique manufactures such as hot pressing form, comprises density board, particieboard, and particle board, multi-layer sheet, fixedTo particieboard (OSB) etc. Wherein conventional adhesive is the urea-formaldehyde glue that utilizes formaldehyde and urea manufacture to form, or utilizes threeThe urea-formaldehyde glue of poly cyanamid modification. Due to low cost, high bond strength, the easy advantages such as transport, the world's wood-based plate prepared of urea-formaldehyde glueIndustry is widely used it as adhesive. Because the volatilization of the formaldehyde of timber own is very little, affect artificial board and goods thereofThe arch-criminal that formaldehyde excess discharges is adhesive. The characteristic of urea-formaldehyde glue has determined that it can discharge in production process of plateFree formaldehyde, has also reduced bond strength and reduce merely content of formaldehyde in glue simultaneously, and therefore, much sheet material manufacturer existsIn production, mostly take to shelter, adsorb, the means such as sealing, delay the release of formaldehyde, so in fact by the harm in producingTransfer in use, fundamentally do not eliminate formaldehyde hidden danger implicit in sheet material. Once possess the condition of formaldehyde volatilization, thisPart formaldehyde still can volatilize in a large number, affects people's health. In wood-based plate, be about 15 years the release time of formaldehyde, world health groupKnit and formaldehyde is confirmed as to II class carcinogenic substance, therefore, the standard of the release limitation of countries in the world to artificial board formaldehyde is more come approximately tightLattice, for example, meet the sheet material of E0 level, and content of formaldehyde must be less than 5mg/100g, meets E1 sheet material, and content of formaldehyde must be less than9mg/100g; And adopt shelter, adsorb, artificial board that the means such as sealing are produced, in the burst size of formaldehyde, conventionally can onlyReach E2 grade standard or can reach reluctantly E1 grade standard. Therefore, be badly in need of providing a kind of and can reduce the material that formaldehyde discharges,Can strengthen the adhesive property of urea-formaldehyde glue to wood materials on the one hand, in addition, can greatly reduce the burst size of formaldehyde, thereby carryThe environmental protection grade of the high wood-based panel product with urea-formaldehyde glue production.
Summary of the invention
The object of the invention is: provide a kind of and can greatly reduce the burst size of formaldehyde and strengthen urea-formaldehyde glue to wood materialsThe bio-based urea aldehyde composite for wood-based plate of adhesive property.
The technical scheme that realizes the object of the invention is: bio-based urea aldehyde composite for a kind of wood-based plate, its innovative point existsIn, it is to be composited by Lauxite or melamine urea-formaldehyde resin and biological composite reinforcing material, in solid, and urea aldehyde treeThe weight ratio of fat or melamine urea-formaldehyde resin and biological composite reinforcing material is 2～9: 8～1;
Described biological composite reinforcing material is containing protein 8～50wt%, fat 1～10wt%, cellulose 40～89wt%, surplusFor the pressed powder of water, its fineness is 100～200 orders.
In above-mentioned bio-based urea aldehyde composite, described in it, biological composite reinforcing material is that vinasse base is without the biological compound increasing of aldehydeStrong material, algae base is without one or both the mixture in the biological composite reinforcing material of aldehyde.
Above-mentioned bio-based urea aldehyde composite, it is during for making artificial plate, in described bio-based urea aldehyde compositeAdd water, making the solids content of bio-based urea aldehyde composite is 45～65wt%, then adds curing agent, and its addition is biological0～20wt% of base urea aldehyde composite solid amount, stirs, and can, by existing technique for the preparation of wood-based plate, makeIts content of formaldehyde of wood-based plate meets the E0 of European Union and U.S. CARB formaldehyde discharges limitation requirement.
Above-mentioned bio-based urea aldehyde composite, described in it wood-based plate for taking wood materials as raw material or taking agricultural crop straw asOne in the density board of raw material, particieboard, oriented wood chipboard, multi-layer sheet.
Technique effect of the present invention is: wood-based plate of the present invention is with being furnished with appropriate biology in bio-based urea aldehyde compositeComposite reinforcing material, this material is containing protein 8～50wt%, fat 1～10wt%, cellulose 40～89wt%, surplus is waterPressed powder, its fineness is 100～200 orders, this material itself is containing formaldehyde, and wherein contained protein and LauxiteOr the contained free formaldehyde of melamine urea-formaldehyde resin has binding ability. Therefore, with bio-based urea aldehyde composite wood of the present inventionThe wood-based plate that material is made, (meeting the E0 of European Union and U.S. CARB formaldehyde discharges limitation and wants can greatly to reduce the burst size of formaldehydeAsk) and strengthen the adhesive property (in table 1～7) of urea-formaldehyde glue to wood materials or agricultural crop straw. In addition, biology used is compoundReinforcing material itself is not containing formaldehyde, and price is suitable, less to the cost impact of wood-based plate, therefore, has wide marketProspect.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further, but is not limited to this.
Embodiment and comparative example raw materials are unless otherwise indicated commercially available industrial goods, can purchase by commercial channel.
In each embodiment, biological composite reinforcing material used is that Sino-British joint Changzhou Kang Tian new material Science and Technology Ltd. is rawThe vinasse base producing is without the biological composite reinforcing material KT-102 of aldehyde, or algae base is without the biological composite reinforcing material KT-103 of aldehyde, itsFineness is 80～200 orders, and water content is < 10wt%;
In each embodiment, curing agent used is PIC (PMDI), epoxy resin or ammonium chloride and is commercially available industrialProduct.
Embodiment 1 prepares artificial chipboard
Concrete steps are as follows:
1. by 50g Lauxite (solids content 100wt%) and 50g(solids content 94wt%) biological composite reinforcing material KT-102(200 order, water content 6wt%) fully mix (in solid, the two weight ratio is 5: 4.7), obtain bio-based urea aldehyde multipleCondensation material;
2. in the bio-based urea aldehyde composite 1. making in step, add 80 grams of water to stir, make bio-based urea aldehyde compoundThe solids content of material is 53.9wt%, then adds 10 grams of curing agent PMDI (solids content 100wt%), and its hardener dose isThe 10.3wt% of bio-based urea aldehyde composite solid amount, stirs, for subsequent use;
3. the technique that the material 2. making by step is manufactured particieboard according to existing urea-formaldehyde glue makes artificial chipboard.
Adopt the method for existing detection artificial board formaldehyde content, respectively to not adding the common urea aldehyde of biological composite reinforcing materialThe content of formaldehyde of the artificial chipboard that wood-based plate and embodiment 1 make detects. Testing result shows the artificial plane of common urea aldehydeThe burst size of methanal of card is 30mg/100g, and the burst size of methanal of the artificial chipboard that embodiment 1 makes is 1.5mg/100g;
Adopt existing wood-based plate detection method, respectively to not adding common urea aldehyde artificial chipboard and the reality of biological composite reinforcing materialEvery mechanical property of executing the artificial chipboard that example 1 makes detects, and the results are shown in table 1.
Table 1
From upper table result, every intensity of the artificial chipboard that embodiment 1 makes is all strengthened.
Embodiment 2 prepares artificial chipboard
Concrete steps are as follows:
1. by 80g Lauxite (solids content 100wt%) and 30g(solids content 92wt%) biological composite reinforcing material KT-103(200 orders, water content 8wt%) fully mixes (in solid, the two weight ratio is 8: 2.76), obtains bio-based urea aldehyde compoundMaterial;
2. in the bio-based urea aldehyde composite 1. making in step, add 70 grams of water to stir, make bio-based urea aldehyde compoundThe solids content of material is 59.8wt%, then adds 10 grams of curing agent PMDI (solids content 100wt%), and its hardener dose isThe 9.3wt% of bio-based urea aldehyde composite solid amount, stirs, for subsequent use;
3. the technique that the material 2. making by step is manufactured particieboard according to existing urea-formaldehyde glue makes artificial chipboard.
Adopt the method for existing detection artificial board formaldehyde content, respectively to not adding the common urea aldehyde of biological composite reinforcing materialThe content of formaldehyde of the artificial chipboard that artificial chipboard and embodiment 2 make detects. Testing result shows common urea aldehyde peopleThe burst size of methanal of making particieboard is 30mg/100g, and the burst size of methanal of the artificial chipboard that embodiment 2 makes is 2.0mg/100g；
Adopt existing wood-based plate detection method, respectively to not adding common urea aldehyde artificial chipboard and the reality of biological composite reinforcing materialEvery mechanical property of executing the artificial chipboard that example 2 makes detects, and the results are shown in table 2.
Table 2
From upper table result, every intensity of the artificial chipboard that embodiment 2 makes is all strengthened.
Embodiment 3 prepares artificial chipboard
Concrete steps are as follows:
1. by 50g Lauxite (solids content 100wt%) and 30g(solids content 94wt%) biological composite reinforcing material KT-102(200 orders, water content 6wt%) and 20g(solids content 95wt%) biological composite reinforcing material KT-103(200 order, water content5wt%) (in solid, the two weight ratio is 5: 4.72, obtains bio-based urea aldehyde composite in abundant mixing;
2. in the bio-based urea aldehyde composite 1. making in step, add 100 grams of water to stir, make bio-based urea aldehyde compoundThe solids content of material is 48.6wt%, then adds 15 grams of curing agent PMDI (solids content 100wt%), and its hardener dose isThe 15.4wt% of bio-based urea aldehyde composite solid amount, stirs, for subsequent use;
3. the technique that the material 2. making by step is manufactured particieboard according to existing urea-formaldehyde glue makes artificial chipboard.
Adopt the method for existing detection artificial board formaldehyde content, respectively to not adding the common urea aldehyde of biological composite reinforcing materialThe content of formaldehyde of the artificial chipboard that artificial chipboard and embodiment 3 make detects. Testing result shows common urea aldehyde peopleThe burst size of methanal of making particieboard is 30mg/100g, and the burst size of methanal of the artificial chipboard that embodiment 3 makes is 1.0mg/100g；
Adopt existing wood-based plate detection method, respectively to not adding common urea aldehyde artificial chipboard and the reality of biological composite reinforcing materialEvery mechanical property of executing the artificial chipboard that example 3 makes detects, and the results are shown in table 3.
Table 3
From upper table result, every intensity of embodiment 3 particieboards is all strengthened.
Embodiment 4 prepares Wheat Straw wood-based plate
Concrete steps are as follows:
1. with 2. identical with embodiment 3;
3. the technique that the material 2. making by step is manufactured artificial board of straw according to existing urea-formaldehyde glue makes Wheat Straw wood-based plate.
Adopt the method for existing detection artificial board formaldehyde content, respectively to not adding the common urea aldehyde of biological composite reinforcing materialThe content of formaldehyde of the Wheat Straw wood-based plate that artificial board of straw and embodiment 4 make detects. Testing result shows common urea aldehydeThe burst size of methanal of artificial board of straw is 40mg/100g, and the burst size of methanal of the Wheat Straw wood-based plate that embodiment 4 makes is1.2mg/100g；
Adopt existing wood-based plate detection method, respectively to not adding common urea aldehyde artificial board of straw and the reality of biological composite reinforcing materialEvery mechanical property of executing the Wheat Straw wood-based plate that example 4 makes detects, and the results are shown in table 4.
Table 4
From upper table result, every intensity of the Wheat Straw wood-based plate that embodiment 4 makes is all strengthened.
Embodiment 5 prepares artificial chipboard
Concrete steps are as follows:
1. identical with embodiment 3;
2. in the bio-based urea aldehyde composite 1. making in step, add 50 grams of water to stir, make bio-based urea aldehyde compoundThe solids content of material is 64.8wt%, then adds 15 grams of curing agent ammonium chlorides (solids content 100wt%), its hardener doseFor the 15.4wt% of bio-based urea aldehyde composite solid amount, stir, for subsequent use;
3. the technique that the material 2. making by step is manufactured artificial chipboard according to existing urea-formaldehyde glue makes artificial chipboard.
Adopt the method for existing detection artificial board formaldehyde content, respectively to not adding the common urea aldehyde of biological composite reinforcing materialThe content of formaldehyde of the artificial chipboard that artificial chipboard and embodiment 5 make detects. Testing result shows common urea aldehyde peopleThe burst size of methanal of making particieboard is 30mg/100g, and the burst size of methanal of the artificial chipboard that embodiment 5 makes is 1.5mg/100g；
Adopt existing wood-based plate detection method, respectively to not adding common urea aldehyde artificial chipboard and the reality of biological composite reinforcing materialEvery mechanical property of executing the artificial chipboard that example 5 makes detects, and the results are shown in table 5.
Table 5
From upper table result, every intensity of the artificial chipboard that embodiment 5 makes is all strengthened.
Embodiment 6 prepares artificial chipboard
Concrete steps are as follows:
1. identical with embodiment 3;
2. except doing with epoxy resin the curing agent PMDI of curing agent of substituted embodiment 3, all the other consumptions and operation all with enforcementExample 3 is identical;
3. the technique that the material 2. making by step is manufactured artificial chipboard according to existing urea-formaldehyde glue makes artificial chipboard.
Adopt the method for existing detection artificial board formaldehyde content, respectively to not adding the common urea aldehyde of biological composite reinforcing materialThe content of formaldehyde of the particieboard that artificial chipboard and embodiment 6 make detects. Testing result shows the artificial plane of common urea aldehydeThe burst size of methanal of card is 30mg/100g, and the burst size of methanal of the particieboard that embodiment 6 makes is 1.5mg/100g;
Adopt existing wood-based plate detection method, respectively to not adding common urea aldehyde artificial chipboard and the reality of biological composite reinforcing materialEvery mechanical property of executing the artificial chipboard that example 6 makes detects, and the results are shown in table 6.
Table 6
From upper table result, every intensity of the artificial chipboard that embodiment 6 makes is all strengthened.
Embodiment 7 prepares oriented wood chipboard
Concrete steps are as follows:
1. by 500kg Lauxite (solids content 100wt%) and 300kg(solids content 94wt%) biological composite reinforcing materialKT-102(200 order, water content 6wt%) and 200kg(solids content 95wt%) biological composite reinforcing material KT-103(200 order, waterContent 5wt%) (in solid, the two weight ratio is 5: 4.72, obtains bio-based urea aldehyde composite in abundant mixing;
2. in the bio-based urea aldehyde composite 1. making in step, add 1000kg water to stir, make bio-based urea aldehyde multipleThe solids content of condensation material is 48.6wt%, then adds 150kg curing agent PMDI (solids content 100wt%), and its curing agent is usedAmount, for the 15.4wt% of bio-based urea aldehyde composite solid amount, stirs, for subsequent use;
3. the technique that the material 2. making by step is manufactured oriented wood chipboard according to existing urea-formaldehyde glue makes oriented wood chipboard.
Adopt the method for existing detection artificial board formaldehyde content, respectively to not adding the common urea aldehyde of biological composite reinforcing materialThe content of formaldehyde of the artificial oriented wood chipboard that artificial oriented wood chipboard and embodiment 3 make detects. Testing result shows generalThe burst size of methanal of the logical artificial oriented wood chipboard of urea aldehyde is 30mg/100g, and the formaldehyde of the oriented wood chipboard that embodiment 7 makes is releasedBe high-volume 0.5mg/100g;
Adopt existing wood-based plate detection method, respectively to not adding the artificial oriented wood chipboard of common urea aldehyde of biological composite reinforcing materialEvery mechanical property of the artificial oriented wood chipboard making with embodiment 7 detects, and the results are shown in table 7.
Table 7
From upper table result, every intensity of the artificial oriented wood chipboard that embodiment 7 makes is all strengthened.
Comprehensive above-described embodiment is known, and wood-based plate provided by the invention can reduce greatly with bio-based urea aldehyde compositeThe burst size of artificial board formaldehyde and the adhesive property of enhancing urea-formaldehyde glue to wood materials or agricultural crop straw, not only meet environmental protection and wantAsk and expanded raw material sources, having a significant effect.
Claims (4)
1. a bio-based urea aldehyde composite for wood-based plate, is characterized in that, it is by Lauxite or melamine urea aldehydeResin and biological composite reinforcing material are composited, in solid, and Lauxite or melamine urea-formaldehyde resin and biological compoundThe weight ratio of reinforcing material is 2～9: 8～1;
Described biological composite reinforcing material is containing protein 8～50wt%, fat 1～10wt%, cellulose 40～89wt%, surplusFor the pressed powder of water, its fineness is 100～200 orders.
2. bio-based urea aldehyde composite according to claim 1, is characterized in that described biological composite reinforcing materialFor vinasse base is without the biological composite reinforcing material of aldehyde, algae base is without one or both the mixing in the biological composite reinforcing material of aldehydeThing.
3. according to the bio-based urea aldehyde composite one of claim 1～2 Suo Shu, it is characterized in that, for making artificialWhen plate, in described bio-based urea aldehyde composite, adding water, the solids content that makes bio-based urea aldehyde composite is 45～65wt%, then add curing agent, its addition is 0～20wt% of bio-based urea aldehyde composite solid amount, stirs,Can be by existing technique for the preparation of wood-based plate, its content of formaldehyde of the wood-based plate making meets the E0 of European Union and U.S. CARB formaldehydeDischarge limitation requirement.
4. bio-based urea aldehyde composite according to claim 3, is characterized in that, described wood-based plate is with wooden materialMaterial is the one in raw material or the density board taking agricultural crop straw as raw material, particieboard, oriented wood chipboard, multi-layer sheet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610092778.9A CN105602500B (en) | 2016-02-19 | 2016-02-19 | A kind of wood-based plate biology base ureaformaldehyde composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610092778.9A CN105602500B (en) | 2016-02-19 | 2016-02-19 | A kind of wood-based plate biology base ureaformaldehyde composite material |
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| CN105602500B CN105602500B (en) | 2018-11-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109651577A (en) * | 2018-12-12 | 2019-04-19 | 南京理工大学 | Ureaformaldehyde base biomimetic material and its preparation method and application |
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| CN1834184A (en) * | 2006-03-30 | 2006-09-20 | 浙江林学院 | Environment protection, low cost urea resin gel |
| CN1993397A (en) * | 2004-07-30 | 2007-07-04 | 禾逊专业化学公司 | Polymerization-enhancing composition for urea-formaldehyde resins, method of manufacture, method of use, and articles formed therefrom |
| CN103725253A (en) * | 2014-01-13 | 2014-04-16 | 武秀英 | Vinasse-based reinforced material for artificial board and vinasse-based non-formaldehyde adhesive prepared from vinasse-based reinforced material |
| CN104789152A (en) * | 2015-03-26 | 2015-07-22 | 北京林业大学 | Melamine modified urea resin packing and preparation method thereof |
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2016
- 2016-02-19 CN CN201610092778.9A patent/CN105602500B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1993397A (en) * | 2004-07-30 | 2007-07-04 | 禾逊专业化学公司 | Polymerization-enhancing composition for urea-formaldehyde resins, method of manufacture, method of use, and articles formed therefrom |
| CN1834184A (en) * | 2006-03-30 | 2006-09-20 | 浙江林学院 | Environment protection, low cost urea resin gel |
| CN103725253A (en) * | 2014-01-13 | 2014-04-16 | 武秀英 | Vinasse-based reinforced material for artificial board and vinasse-based non-formaldehyde adhesive prepared from vinasse-based reinforced material |
| CN104789152A (en) * | 2015-03-26 | 2015-07-22 | 北京林业大学 | Melamine modified urea resin packing and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109651577A (en) * | 2018-12-12 | 2019-04-19 | 南京理工大学 | Ureaformaldehyde base biomimetic material and its preparation method and application |
| CN109651577B (en) * | 2018-12-12 | 2021-04-27 | 南京理工大学 | Urea-based bionic material and preparation method and application thereof |
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