CN101987942A - Inorganic adhesive for fiberboard and making method thereof - Google Patents
Inorganic adhesive for fiberboard and making method thereof Download PDFInfo
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- CN101987942A CN101987942A CN2010102650171A CN201010265017A CN101987942A CN 101987942 A CN101987942 A CN 101987942A CN 2010102650171 A CN2010102650171 A CN 2010102650171A CN 201010265017 A CN201010265017 A CN 201010265017A CN 101987942 A CN101987942 A CN 101987942A
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- magnesium chloride
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- magnesium oxide
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Abstract
The invention relates to a making method of an inorganic adhesive for a fiberboard. Magnesium chloride, magnesium oxide, water and fiber are stirred to react so as to form an inorganic adhesive for the fiberboard. The method comprises the following steps of: (1) crushing the magnesium chloride powder and mixing with the magnesium oxide to form medium powder as the inorganic adhesive; and (2) adding the fiber to the medium powder, stirring, mixing and then adding water for stirring or firstly, simultaneously adding the water and the medium powder to the fiber and stirring or firstly, adding the water to the fiber and then adding the medium powder. The invention has the predominant and practical advantages of avoiding a plurality of problems caused by residential magnesium chloride in plant (wood) fiber and improving the safety performance and the use performance of the fiberboard. Meanwhile, the adhesive formed by magnesium chloride powder and magnesium oxide powder is adopted to substitute urea-formaldehyde resin in the prior art to avoid formaldehyde emission and improve the use safety.
Description
[affiliated technical field]
The present invention relates to a kind of fiberboard field, relate in particular to the inorganic gluing preparation method of a kind of fibre board use.
[background technology]
At present, a lot of with the sheet material of plant (wood) fiber production, the tackiness agent of preparation plant (wood) fiberboard adopts Precondensed UreaFormaldehyde Resin, formaldehyde content height.And, the method of preparing of conventional magnesia oxychloride cement tackiness agent is: earlier magnesium chloride is added the water-soluble magnesium chloride liquid (bittern) that changes into, stir into the flow-like tackiness agent with magnesium chloride liquid and magnesium oxide powder then, and then in glue paste, admix plant (wood) fiber.Zhi Bei tackiness agent is not suitable for the production of plant (wood) fiberboard in this way, because when the magnesia oxychloride cement of flow-like and plant (wood) blending in of fibers, moisture in plant (wood) the fiber absorbs magnesia oxychloride cement, this moisture contains magnesium chloride, magnesium chloride by plant (wood) fiber absorbs after partly magnesium chloride by fibers encapsulation, obstruction contacts with magnesium oxide, does not participate in reaction, remains in plant (wood) fiberboard.Magnesium chloride absorbs airborne moisture easily and gets damp, and also the metallic substance (as nail, cornerite, hinge etc.) that contacts with plant (wood) fiberboard is produced corrosion, and influence is used.
Therefore, there is following defective in prior art: the formaldehyde content height, and the influence mankind's is healthy, easy firing; Remain in the stronger water absorbability of residue magnesium chloride that not having in plant (wood) fiberboard reacted with magnesium oxide, easily the metalwork that cooperates with fiberboard is produced corrosion, influence the work-ing life of sheet material.
[summary of the invention]
The object of the present invention is to provide the preparation method of the inorganic viscose glue of a kind of fibre board use, adopt the preparation technology of adding magnesium chloride and magnesian mixed powder in the fiber make the fiber suction earlier, to divide toward suction then, mixed powder absorbs the water reaction in the fiber, perhaps add magnesium chloride, magnesian mixed powder and water in the fiber simultaneously, form inorganic viscose glue and binder fibre, form the inorganic adhesive that inorganic viscose fiber plate is used, should inorganic viscose glue and blending in of fibers, compacting maintenance solidify to form fiberboard, solve the problems referred to above that prior art exists.
The present invention solves the technical scheme that the prior art problem adopted: the preparation method of the inorganic viscose glue of a kind of fibre board use, it is characterized in that magnesium chloride, magnesium oxide, water and fiber are stirred, reaction forms the fibre board use inorganic adhesive, the steps include: step 1, described inorganic glue paste is that magnesium chloride is pulverized the back and magnesium oxide is mixed into middle pulvis; Step 2 adds fiber and mixes in middle pulvis, add water then and stir; Perhaps, adding earlier water and middle pulvis simultaneously in fiber stirs; Perhaps, in fiber, add earlier water, pulvis in the middle of adding then.Among this preparation method, in plant (wood) fiber, add quantitative water earlier, allow the quantitative moisture of plant (wood) fiber absorbs, add magnesium chloride, magnesian mixing powder then, magnesium chloride, magnesium oxide mixing powder form the fibre board use inorganic adhesive by absorbing the moisture content reaction in plant (wood) fiber.Perhaps, will change magnesium, magnesian middle pulvis, water adding plant (wood) fiber stirring reaction simultaneously, form the fibre board use inorganic adhesive; Perhaps, perhaps, in fiber, add earlier water, pulvis in the middle of adding then.Solved plant in the prior art (wood) fiber absorbs magnesium chloride liquid, do not participated in magnesium oxide reaction and remain in the problem of being brought in plant (wood) fiber.The glue paste that adopts magnesium chloride powder and magnesium oxide powder to form substitutes Precondensed UreaFormaldehyde Resin of the prior art, avoids the discharging of formaldehyde, improves safety in utilization.
As the further of technique scheme improved and replenish, the present invention adopts following technical measures: the weight ratio of described magnesium chloride and magnesium oxide mixing powder is 30-80: 100 (content of magnesium chloride calculates by 45%).Such proportioning helps the inorganic glue paste performance that guarantees that magnesium chloride and magnesium oxide reaction generate.
The operation of described step 1 is: a, magnesium chloride powder is broken into powder; B, with magnesium chloride pulvis and magnesium oxide pulvis be mixed in proportion in the middle of pulvis.
Described magnesium oxide is: calcining, the magnesium oxide of active magnesium content between 30%-95% between 600 ℃-1000 ℃.
Described magnesium chloride is: produce the byproduct of sodium-chlor, Repone K, metal titanium, magnesium content is more than 43%.Magnesium chloride is easily moist, pulverizes magnesium chloride and operates under the exsiccant environment, preserves under the exsiccant environment, transports.As adopt packing, packing material can adopt plastics bag, plastic tank, metal bucket etc. to pack.
The outstanding substantive distinguishing features that the present invention has: among this preparation method, in advance magnesium chloride is pulverized back and magnesium oxide mixing powder, in plant (wood) fiber, add quantitative water, allow the quantitative moisture of plant (wood) fiber absorbs, the magnesium chloride of Jia Ruing, magnesium oxide mix then, by absorbing the moisture content reaction in plant (wood) fiber; Perhaps magnesium chloride, magnesium oxide, water add simultaneously in plant (wood) fiber and react.Avoid magnesium chloride to remain in the problems of bringing in plant (wood) fiber.The safety performance and the use properties of fiberboard have been improved.Simultaneously, the glue paste that adopts magnesium chloride powder and magnesium oxide powder to form substitutes Precondensed UreaFormaldehyde Resin of the prior art, avoids the discharging of formaldehyde, improves safety in utilization.
[embodiment]
Embodiment 1: the preparation method of the inorganic viscose glue of a kind of fibre board use, magnesium chloride, magnesium oxide, water and fiber are stirred, reaction forms the fibre board use inorganic adhesive, the steps include: step 1, and described inorganic glue paste is that magnesium chloride is pulverized the back and magnesium oxide is mixed into middle pulvis; Step 2 adds fiber and mixes in middle pulvis, add water then and stir; Perhaps, adding earlier water and middle pulvis simultaneously in fiber stirs; Perhaps, in fiber, add earlier water, pulvis in the middle of adding then.
Magnesium chloride and magnesian weight ratio are 30-80: 100 (content of magnesium chloride calculates by 45%).In addition, can add auxiliary agent (as acid, silicon etc.) in right amount, to improve the inorganic adhesive performance.Fiber adopts vegetable fibre or xylon etc.Other fibers that do not exemplify also belong to protection scope of the present invention.The easy deliquescence of magnesium chloride, therefore, magnesium chloride adopts exsiccant mode storage and transport before pulverizing, operate under dry environment in crushing process.Magnesium chloride and magnesium oxide mixing powder adopt exsiccant mode storage and transport.Adopt during storage and transport to pack, packing material can adopt plastics bag, plastic tank, metal bucket etc.
Adopt inorganic glue paste to replace the Precondensed UreaFormaldehyde Resin of prior art, avoided the discharging of formaldehyde.And, adopt above-mentioned preparation method, avoid magnesium chloride to remain in many deficiencies of bringing in plant (wood) fiber.The safety performance and the use properties of fiberboard have been improved.
Magnesium oxide is: calcining (as 700 ℃ or 800 ℃ or 900 ℃), the magnesium oxide (as 45% or 85%) of active magnesium content between 30%-90% between 600 ℃-1000 ℃; Magnesium chloride is for producing sodium-chlor, the byproduct of Repone K, metal titanium.
Embodiment 2: pulvis and water join in the fiber simultaneously in the middle of magnesium chloride and the magnesium oxide blended.All the other are with embodiment 1.
Embodiment 3: middle pulvis elder generation and blending in of fibers add entry 5 then.All the other are with embodiment 1.
Claims (6)
1. the preparation method of the inorganic viscose glue of fibre board use, it is characterized in that magnesium chloride, magnesium oxide, water and fiber are stirred, reaction forms the fibre board use inorganic adhesive, the steps include: step 1, and described inorganic glue paste is that magnesium chloride is pulverized the back and magnesium oxide is mixed into middle pulvis; Step 2 adds fiber and mixes in middle pulvis, add water then and stir; Perhaps, adding earlier water and middle pulvis simultaneously in fiber stirs; Perhaps, in fiber, add earlier water, pulvis in the middle of adding then.
2. the inorganic viscose glue preparation method of a kind of fibre board use according to claim 1 is characterized in that the weight ratio of magnesium chloride pulvis and magnesium oxide pulvis is 30-80 in the described inorganic viscose glue: 100.
3. the preparation method of the inorganic glue paste of a kind of fibre board use according to claim 2 is characterized in that the operation of described step 1 is: a, magnesium chloride powder is broken into powder; B, with magnesium chloride pulvis and magnesium oxide pulvis be mixed in proportion in the middle of pulvis.
4. the preparation method of the inorganic viscose glue of a kind of fibre board use according to claim 3 is characterized in that described magnesium oxide is: light calcined magnesia is calcined between 600 ℃-1000 ℃, the magnesium oxide of active magnesium content between 30%-95%.
5. the preparation method of the inorganic viscose glue of a kind of fibre board use according to claim 3 is characterized in that being added with auxiliary agent in the inorganic glue paste, is mixed together stirring with magnesium chloride pulvis and magnesium oxide pulvis, forms mixing powder.
6. the preparation method of the inorganic viscose glue of a kind of fibre board use according to claim 6 is characterized in that magnesium chloride operates under dry environment in the process of pulverizing, adopt the method storage and transport of hermetically drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102650171A CN101987942A (en) | 2010-08-27 | 2010-08-27 | Inorganic adhesive for fiberboard and making method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102650171A CN101987942A (en) | 2010-08-27 | 2010-08-27 | Inorganic adhesive for fiberboard and making method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101987942A true CN101987942A (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102650171A Pending CN101987942A (en) | 2010-08-27 | 2010-08-27 | Inorganic adhesive for fiberboard and making method thereof |
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| Country | Link |
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| CN (1) | CN101987942A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702985A (en) * | 2012-05-31 | 2012-10-03 | 广州市棕宝纤维制品有限公司 | Inorganic adhesive with flame-retardant effect for plant fiber and application of inorganic adhesive |
| CN105295740A (en) * | 2015-09-30 | 2016-02-03 | 简瑞聪 | Aldehyde-free liquid glue and artificial board processing method |
| CN106590523A (en) * | 2016-11-10 | 2017-04-26 | 简正品 | Soybean-based formaldehyde-free adhesive and application methods thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057227A (en) * | 1990-06-12 | 1991-12-25 | 张国纯 | Composite magnesian fibre board and manufacture method |
| CN1099366A (en) * | 1994-05-19 | 1995-03-01 | 李广文 | Vegetable fibre and magnesium oxychloride cement composite board |
| CN1212958A (en) * | 1997-09-29 | 1999-04-07 | 廖礼毅 | Method for modifying magnesium oxychloride material |
| CN1900197A (en) * | 2005-07-22 | 2007-01-24 | 支亮 | Air duct adhesive for building |
| CN101293371A (en) * | 2008-06-06 | 2008-10-29 | 熊勇 | Method for producing environment friendly fireproof plant fiber density board |
-
2010
- 2010-08-27 CN CN2010102650171A patent/CN101987942A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057227A (en) * | 1990-06-12 | 1991-12-25 | 张国纯 | Composite magnesian fibre board and manufacture method |
| CN1099366A (en) * | 1994-05-19 | 1995-03-01 | 李广文 | Vegetable fibre and magnesium oxychloride cement composite board |
| CN1212958A (en) * | 1997-09-29 | 1999-04-07 | 廖礼毅 | Method for modifying magnesium oxychloride material |
| CN1900197A (en) * | 2005-07-22 | 2007-01-24 | 支亮 | Air duct adhesive for building |
| CN101293371A (en) * | 2008-06-06 | 2008-10-29 | 熊勇 | Method for producing environment friendly fireproof plant fiber density board |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702985A (en) * | 2012-05-31 | 2012-10-03 | 广州市棕宝纤维制品有限公司 | Inorganic adhesive with flame-retardant effect for plant fiber and application of inorganic adhesive |
| CN105295740A (en) * | 2015-09-30 | 2016-02-03 | 简瑞聪 | Aldehyde-free liquid glue and artificial board processing method |
| CN105295740B (en) * | 2015-09-30 | 2018-03-30 | 佛山市高明顺高木业有限公司 | The liquid adhesive and wood-based plate processing method of a kind of no aldehyde |
| CN106590523A (en) * | 2016-11-10 | 2017-04-26 | 简正品 | Soybean-based formaldehyde-free adhesive and application methods thereof |
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Application publication date: 20110323 |