CN103112073B - A kind of fiberboard and production method thereof - Google Patents
A kind of fiberboard and production method thereof Download PDFInfo
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- CN103112073B CN103112073B CN201310067552.XA CN201310067552A CN103112073B CN 103112073 B CN103112073 B CN 103112073B CN 201310067552 A CN201310067552 A CN 201310067552A CN 103112073 B CN103112073 B CN 103112073B
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- crosslinking agent
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Abstract
The invention discloses a kind of production method of fiberboard, this production method needed raw material comprises: fiber 100 parts, epoxy glue 10 ~ 12 parts, and this production method comprises the following steps: applying glue: mixed with described epoxy glue by described fiber; Dry: the described mixture mixed to be carried out drying, makes fiber moisture content be 10 ~ 11%; Mat formation: the fibre blend of described drying is mated formation; Hot-forming: by described composite fibre of mating formation 205 ~ 215 degree carry out hot pressing after 48 ~ 72 hours sanding shaping.The invention also discloses a kind of fiberboard that with the addition of crosslinking agent in process of production.Produced according to the invention go out fiberboard both cost-saving, enhance productivity, the standard of environmental protection can be reached again.
Description
Technical field
The present invention relates to a kind of fiberboard, particularly relate to a kind of production method of fiberboard.
Background technology
At present, the fiberboard of more than 90% uses urea-formaldehyde glue, in order to meet the requirement of environmental protection, generally adopts the method reducing mol ratio.Then can there is following problem in the mol ratio reducing urea-formaldehyde glue: the degree of cross linking reduces, curing performance is deteriorated and hardening time extends, and therefore can have a strong impact on the mechanical property of fiberboard, and constant product quality and production efficiency reduce.The defect brought is reduced in order to make up urea-formaldehyde glue mol ratio, make fiberboard can meet the requirement of environmental protection, do not affect properties of product again, generally the consumption of urea-formaldehyde glue is increased to 10%, but speed of production can decline 10%, and in the process of glue, also need interpolation melamine to carry out modification, significantly add production cost, reduce production efficiency, control of product quality difficulty strengthens.
Therefore desirable to provide a kind of method of producd fibers plate, make it can be cost-saving, enhance productivity, the standard of environmental protection can be reached again.
Summary of the invention
For this reason, the utility model proposes a kind of production method of the fiberboard solved the problem at least partly that can solve the problem.
According to an aspect of the present invention, provide a kind of production method of fiberboard: this production method needed raw material comprises: fiber 100 parts, epoxy glue 10 ~ 12 parts, wherein,
This production method comprises the following steps:
(1) applying glue: described fiber is mixed with described epoxy glue;
(2) dry: the described mixture mixed to be carried out drying, makes fiber moisture content be 10 ~ 11%;
(3) mat formation: the fibre blend of described drying is mated formation;
(4) hot-forming: by described composite fibre of mating formation 205 ~ 215 degree carry out hot pressing after 48 ~ 72 hours sanding shaping.
Fiberboard produced according to the invention, has saved cost, has improve production efficiency, reaches again the standard of environmental protection.
Alternatively, in accordance with the present production process, the preparation method of wherein said epoxy glue is as follows:
Prepare described epoxy glue needed raw material to comprise: the curing agent of the urea-formaldehyde glue of 100 parts, the crosslinking agent of 0.5 ~ 1 part, 1.5 ~ 6 parts of water and 0.5 ~ 1.5 part, wherein,
The preparation method of this epoxy glue comprises the following steps:
(1) described crosslinking agent is mixed with described water;
(2) described curing agent is added the aqueous solution of described crosslinking agent, stir;
(3) described urea-formaldehyde glue is added described in add in the aqueous solution of the crosslinking agent of curing agent, stir.
When adopting this method to prepare epoxy glue, by the aqueous solution of described curing agent and described crosslinking agent evenly after, add urea-formaldehyde glue immediately, stir, prepare epoxy glue, need immediately by described epoxy glue together with described fibers mixture, stir, such effect just can be better.After application adds the epoxy glue of crosslinking agent, the degree of cross linking raises, curing performance improves and hardening time shortens.
Alternatively, in accordance with the present production process, the urea-formaldehyde glue wherein prepared needed for described epoxy glue is 100 parts, crosslinking agent is 0.5 ~ 1 part, water be 1.5 ~ 6 parts and curing agent is 0.5 ~ 1.5 part.
Alternatively, in accordance with the present production process, wherein said crosslinking agent is: polyvinyl alcohol crosslinked dose, epoxy crosslinking agent and or bisphenol-A crosslinking agent.
Alternatively, in accordance with the present production process, wherein said curing agent is ammonium chloride.
Alternatively, according to production method of the present invention, the preparation process of wherein said epoxy glue is carried out at 25 degree.
At room temperature be prepared epoxy glue, ensure to mix, and don't other reaction can occur.
Alternatively, in accordance with the present production process, in described drying steps, first carry out drying at 125 ~ 140 degree, then carry out drying at 54 ~ 57 degree.
Stage drying can accelerate rate of drying, in turn ensure that the quality of each composition in fibre blend.
According to a further aspect in the invention, provide a kind of fiberboard, it is characterized in that, the epoxy glue applied in the applying glue step of the production process of described fiberboard with the addition of crosslinking agent.
Exactly because with the process of fibers mixture in the addition of crosslinking agent, make, in the process of drying, to enhance the active ingredient of urea aldehydic acid, decrease the amount of solidification, decrease the consumption of urea-formaldehyde glue, reduce the burst size of formaldehyde, improve production efficiency.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred embodiment, and does not think limitation of the present invention.
Fig. 1 shows the production method of the fiberboard according to one embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and concrete embodiment, the invention will be further described.
The production method of the fiberboard of the one embodiment of the present invention according to Fig. 1.According to this method, first enter S1100 step and carry out applying glue: fiber is mixed with epoxy glue; The mixture mixed afterwards enters S1200 step and carries out drying; Dried fibre blend enters S1300 step and mats formation, and the fibre blend paved enters S1400 step and carries out hot-forming, and so far S1400 step terminates, and Fibreboard Production completes.
According to method of the present invention, can produce cost lower, production efficiency is higher, the fiberboard of environmental protection, low formaldehyde.This technique also may be used for the production of other sheet material, also necessarily can improve on basis of the present invention, design different production methods.The production method design parameter of fiberboard of the present invention is more, and processing step is comparatively complicated, and therefore specific embodiment is only as the exemplary illustration of specific implementation of the present invention, and does not form limiting the scope of the invention.Be described further using the production process of fiberboard provided by the invention as embodiment below.
Embodiment 1
Fig. 1 shows the production method of the fiberboard according to one embodiment of the present invention.According to this method, first enter S1100 step and carry out applying glue: first prepare epoxy glue, in 0.5 part of crosslinking agent, add 1.5 parts of water stir, wherein said crosslinking agent is polyvinyl alcohol crosslinked dose; In the aqueous solution of the described crosslinking agent stirred, add 0.5 part of curing agent stir; Add in the aqueous solution of the crosslinking agent of curing agent described in 100 parts of urea-formaldehyde glues are added, stir, prepare epoxy glue; The epoxy glue prepared described in getting 10 parts joins in the fiber of 100 parts immediately, stirs, and obtains the mixture of fiber.The fibre blend obtained enters S1200 step and carries out drying, first carries out drying at 125 degree, is then cooled to 54 degree and carries out drying, when being 10% to the water content of described fiber; Dried fibre blend enters S1300 step and mats formation, and according to specification, the model of described fiberboard, density, thickness etc. require to mat formation; The fibre blend paved enters S1400 step and carries out hot-forming, described composite fibre of mating formation is carried out hot pressing 48 hours 205 degree time, carries out sanding shaping.So far S1400 step terminates, and Fibreboard Production completes.
Embodiment 2
Fig. 1 shows the production method of the fiberboard according to one embodiment of the present invention.According to this method, first enter S1100 step and carry out applying glue: first prepare epoxy glue, in 1 part of crosslinking agent, add 1.5 parts of water stir, wherein said crosslinking agent is epoxy crosslinking agent; In the aqueous solution of the described crosslinking agent stirred, add 1.5 parts of curing agent stir; Add in the aqueous solution of the crosslinking agent of curing agent described in 100 parts of urea-formaldehyde glues are added, stir, prepare epoxy glue; The epoxy glue prepared described in getting 12 parts joins in the fiber of 100 parts immediately, stirs, and obtains the mixture of fiber.The fibre blend obtained enters S1200 step and carries out drying, first carries out drying at 140 degree, is then cooled to 57 degree and carries out drying, when being 11% to the water content of described fiber; Dried fibre blend enters S1300 step and mats formation, and according to specification, the model of described fiberboard, density, thickness etc. require to mat formation; The fibre blend paved enters S1400 step and carries out hot-forming, described composite fibre of mating formation is carried out hot pressing 72 hours 215 degree time, carries out sanding shaping.So far S1400 step terminates, and Fibreboard Production completes.
Embodiment 3
Fig. 1 shows the production method of the fiberboard according to one embodiment of the present invention.According to this method, first enter S1100 step and carry out applying glue: first prepare epoxy glue, in 0.8 part of crosslinking agent, add 4.8 parts of water stir, wherein said crosslinking agent is epoxy crosslinking agent; In the aqueous solution of the described crosslinking agent stirred, add 1.0 parts of ammonium chlorides stir; Add in the aqueous solution of the crosslinking agent of ammonium chloride described in 100 parts of urea-formaldehyde glues are added, stir, prepare epoxy glue; The epoxy glue prepared described in getting 11 parts joins in the fiber of 100 parts immediately, stirs, and obtains the mixture of fiber.The fibre blend obtained enters S1200 step and carries out drying, first carries out drying at 130 degree, is then cooled to 56 degree and carries out drying, when being 10.5% to the water content of described fiber; Dried fibre blend enters S1300 step and mats formation, and according to specification, the model of described fiberboard, density, thickness etc. require to mat formation; The fibre blend paved enters S1400 step and carries out hot-forming, described composite fibre of mating formation is carried out hot pressing 60 hours 210 degree time, carries out sanding shaping.So far S1400 step terminates, and Fibreboard Production completes.
Embodiment 4
Fig. 1 shows the production method of the fiberboard according to one embodiment of the present invention.According to this method, first enter S1100 step and carry out applying glue: first prepare epoxy glue, in 0.5 part of crosslinking agent, add 2.0 parts of water stir, wherein said crosslinking agent is bisphenol-A crosslinking agent; In the aqueous solution of the described crosslinking agent stirred, add 1.2 parts of ammonium chlorides stir; Add in the aqueous solution of the crosslinking agent of ammonium chloride described in 100 parts of urea-formaldehyde glues are added, stir, prepare epoxy glue; The epoxy glue prepared described in getting 10 parts joins in the fiber of 100 parts immediately, stirs, and obtains the mixture of fiber.The fibre blend obtained enters S1200 step and carries out drying, first carries out drying at 135 degree, is then cooled to 55 degree and carries out drying, when being 11% to the water content of described fiber; Dried fibre blend enters S1300 step and mats formation, and according to specification, the model of described fiberboard, density, thickness etc. require to mat formation; The fibre blend paved enters S1400 step and carries out hot-forming, described composite fibre of mating formation is carried out hot pressing 66 hours 212 degree time, carries out sanding shaping.So far S1400 step terminates, and Fibreboard Production completes.
Embodiment 5
Fig. 1 shows the production method of the fiberboard according to one embodiment of the present invention.According to this method, first enter S1100 step and carry out applying glue: first prepare epoxy glue, in 0.9 part of crosslinking agent, add 3.0 parts of water stir, wherein said crosslinking agent is epoxy crosslinking agent; In the aqueous solution of the described crosslinking agent stirred, add 0.6 part of ammonium chloride stir; Add in the aqueous solution of the crosslinking agent of ammonium chloride described in 100 parts of urea-formaldehyde glues are added, stir, prepare epoxy glue; The epoxy glue prepared described in getting 11 parts joins in the fiber of 100 parts immediately, stirs, and obtains the mixture of fiber.The fibre blend obtained enters S1200 step and carries out drying, first carries out drying at 133 degree, is then cooled to 57 degree and carries out drying, when being 10% to the water content of described fiber; Dried fibre blend enters S1300 step and mats formation, and according to specification, the model of described fiberboard, density, thickness etc. require to mat formation; The fibre blend paved enters S1400 step and carries out hot-forming, described composite fibre of mating formation is carried out hot pressing 70 hours 212 degree time, carries out sanding shaping.So far S1400 step terminates, and Fibreboard Production completes.
Embodiment 6
Fig. 1 shows the production method of the fiberboard according to one embodiment of the present invention.According to this method, first enter S1100 step and carry out applying glue: first prepare epoxy glue, in 0.7 part of crosslinking agent, add 2.5 parts of water stir, wherein said crosslinking agent is bisphenol-A crosslinking agent; In the aqueous solution of the described crosslinking agent stirred, add 1.0 parts of ammonium chlorides stir; Add in the aqueous solution of the crosslinking agent of ammonium chloride described in 100 parts of urea-formaldehyde glues are added, stir, prepare epoxy glue; The epoxy glue prepared described in getting 10 parts joins in the fiber of 100 parts immediately, stirs, and obtains the mixture of fiber.The fibre blend obtained enters S1200 step and carries out drying, first carries out drying at 138 degree, is then cooled to 56 degree and carries out drying, when being 10% to the water content of described fiber; Dried fibre blend enters S1300 step and mats formation, and according to specification, the model of described fiberboard, density, thickness etc. require to mat formation; The fibre blend paved enters S1400 step and carries out hot-forming, described composite fibre of mating formation is carried out hot pressing 50 hours 213 degree time, carries out sanding shaping.So far S1400 step terminates, and Fibreboard Production completes.
Described crosslinking agent except mention in an embodiment several except, the reagent of the model that YongGangWeiFang company produces to be the crosslinking agent of strength crosslinking agent YRB-102 be a kind of better effects if.Production method according to embodiment 1 to 6, because described crosslinking agent is macromolecular compound, with other raw materials with the use of, reduce by 10% burst size of methanal, reduce the consumption of urea-formaldehyde glue more than 10%, and coordinate the production efficiency more than 10% that improve fiberboard with curing agent.In addition owing to employing crosslinking agent in urea-formaldehyde glue, improve the active phase of urea-formaldehyde glue, in the step of drying, improve the validity of urea-formaldehyde glue, its amount of solidification is reduced, also make its solidification amount in hot-forming process reduce, thus reduce the consumption of urea-formaldehyde glue, save production cost, enhance productivity, and meet the requirement of environmental protection.The quality producing fiberboard meets relevant criterion.In saving cost, fiberboard is produced by the adding proportion of embodiment 1, when the floor base material of producd fibers plate 12 square metres, add the resin added after crosslinking agent and do not add crosslinking agent and compare resin added and to decline 20 kg/ton, and product comprehensive quality index is all up to standard, comprehensively cost-saving is 22 yuan/cubic metre, by annual production 60000 cubic metres calculation, cost-saving 1,320,000 yuan every year, cost obviously reduces.
It should be noted, the present invention will be described instead of limit invention for above-described embodiment, and those skilled in the art can design alternative embodiment when not departing from the scope of claims.
Claims (4)
1. a production method for fiberboard, this production method needed raw material comprises: fiber 100 parts, epoxy glue 10 ~ 12 parts, wherein,
This production method comprises the following steps:
(1) applying glue: described fiber is mixed with described epoxy glue;
(2) dry: the mixture mixed to be carried out drying, makes fiber moisture content be 10 ~ 11%;
(3) mat formation: the fiber of drying and the mixture of epoxy glue are mated formation;
(4) hot-forming: by the composite fibre of mating formation 205 ~ 215 degree carry out hot pressing after 48 ~ 72 hours sanding shaping;
Wherein, the preparation method of described epoxy glue is as follows:
Prepare described epoxy glue needed raw material and comprise urea-formaldehyde glue, crosslinking agent, water and curing agent, wherein,
The preparation method of this epoxy glue comprises the following steps:
(1) described crosslinking agent is mixed with described water;
(2) described curing agent is added the aqueous solution of described crosslinking agent, stir;
(3) described urea-formaldehyde glue is added in the aqueous solution of the crosslinking agent adding curing agent, stir;
Wherein, the urea-formaldehyde glue prepared needed for described epoxy glue is 100 parts, crosslinking agent is 0.5 ~ 1 part, water be 1.5 ~ 6 parts and curing agent is 0.5 ~ 1.5 part;
Wherein, described crosslinking agent is: polyvinyl alcohol crosslinked dose, epoxy crosslinking agent and or bisphenol-A crosslinking agent; And
In described drying steps, first carry out drying at 125 ~ 140 degree, then carry out drying at 54 ~ 57 degree.
2. production method according to claim 1, wherein said curing agent is ammonium chloride.
3. production method according to claim 1, the preparation process of wherein said epoxy glue is carried out at 25 degree.
4. according to the fiberboard that the arbitrary described production method of claim 1-3 is produced, it is characterized in that, the epoxy glue applied in described applying glue step with the addition of crosslinking agent.
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| CN201310067552.XA CN103112073B (en) | 2013-03-04 | 2013-03-04 | A kind of fiberboard and production method thereof |
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| CN201310067552.XA CN103112073B (en) | 2013-03-04 | 2013-03-04 | A kind of fiberboard and production method thereof |
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| CN103112073A CN103112073A (en) | 2013-05-22 |
| CN103112073B true CN103112073B (en) | 2015-10-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363962A (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 environment protection pressed-fibre board and its manufacture method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210009B (en) * | 2013-06-05 | 2016-04-27 | 北京林业大学 | A kind of method controlling fiberboard Vertical density gradient |
| CN105856379A (en) * | 2016-04-14 | 2016-08-17 | 华南理工大学 | Environment-friendly high-strength lignocellulose plate and preparing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786287A (en) * | 2010-02-05 | 2010-07-28 | 浙江省林业科学研究院 | Manufacturing method of environment-friendly antiflaming middle and high density fiberboard |
| CN101791817A (en) * | 2010-02-05 | 2010-08-04 | 浙江省林业科学研究院 | Production method of environmental-friendly type low-cost middle and high density fiber board |
| CN101863066A (en) * | 2009-10-16 | 2010-10-20 | 东营正和木业有限公司 | Production process for flame-retardant medium and high-density board |
| CN102152372A (en) * | 2011-01-18 | 2011-08-17 | 福建省永安林业(集团)股份有限公司 | Preparation method of low-density fiberboards |
| CN102179857A (en) * | 2011-04-07 | 2011-09-14 | 云南工业大麻股份有限公司 | High-strength fiberboard and manufacturing method thereof |
| CN102514071A (en) * | 2011-11-30 | 2012-06-27 | 广西新凯骅实业集团股份有限公司 | Low glue consumption method for making medium density fiberboard |
| CN102806591A (en) * | 2012-07-27 | 2012-12-05 | 大亚木业(江西)有限公司 | Manufacturing process for ultra light fiber board |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007090724A (en) * | 2005-09-29 | 2007-04-12 | Eidai Co Ltd | Woody fiber plate comprising conifer as woody raw material and manufacturing method therefor |
| DE102008056650A1 (en) * | 2008-11-10 | 2010-05-12 | Martin Dreisman | Composition and method of making a wood or fiberboard |
-
2013
- 2013-03-04 CN CN201310067552.XA patent/CN103112073B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863066A (en) * | 2009-10-16 | 2010-10-20 | 东营正和木业有限公司 | Production process for flame-retardant medium and high-density board |
| CN101786287A (en) * | 2010-02-05 | 2010-07-28 | 浙江省林业科学研究院 | Manufacturing method of environment-friendly antiflaming middle and high density fiberboard |
| CN101791817A (en) * | 2010-02-05 | 2010-08-04 | 浙江省林业科学研究院 | Production method of environmental-friendly type low-cost middle and high density fiber board |
| CN102152372A (en) * | 2011-01-18 | 2011-08-17 | 福建省永安林业(集团)股份有限公司 | Preparation method of low-density fiberboards |
| CN102179857A (en) * | 2011-04-07 | 2011-09-14 | 云南工业大麻股份有限公司 | High-strength fiberboard and manufacturing method thereof |
| CN102514071A (en) * | 2011-11-30 | 2012-06-27 | 广西新凯骅实业集团股份有限公司 | Low glue consumption method for making medium density fiberboard |
| CN102806591A (en) * | 2012-07-27 | 2012-12-05 | 大亚木业(江西)有限公司 | Manufacturing process for ultra light fiber board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363962A (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 environment protection pressed-fibre board and its manufacture method |
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