CN103707381A - Method for manufacturing non-glued bamboo fiber board - Google Patents
Method for manufacturing non-glued bamboo fiber board Download PDFInfo
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- CN103707381A CN103707381A CN201410011629.6A CN201410011629A CN103707381A CN 103707381 A CN103707381 A CN 103707381A CN 201410011629 A CN201410011629 A CN 201410011629A CN 103707381 A CN103707381 A CN 103707381A
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Abstract
The invention discloses a method for manufacturing a non-glued bamboo fiber board. The method sequentially comprises the following processes of hot-grinding fiber degradation, drying, pavement, prepressing, saw cutting, hot-pressing molding, cooling and edge clipping, wherein in the hot-pressing process, the hot-pressing temperature ranges from 160 DEG C to 230 DEG C, the hot-pressing pressure ranges from 30 kg/cm<2> to 85kg/cm<2>, and the hot-pressing time lasts for 5 minutes to 30 minutes, and then the non-glued bamboo fiber board is obtained. Chemical substances in bamboo fibers are degraded at a high temperature and under high pressure to generate a low-molecular-weight substance with properties of natural glue, and then bamboo fibers which are not degraded are glued together under the action of the temperature and the pressure to form a non-glued environment-friendly board with high mechanical properties. Since the board is made from the bamboo fibers through degradation and combination, glue is not needed in the process, usage of the glue is reduced effectively, and production cost and pollution are reduced.
Description
Technical field
The present invention relates to utilize bamboo fibre to produce the method for glue-free sheet material.
Background technology
The utilization rate of bamboo wood is lower, and at present the fabrication processing of Recombined bamboo is: bamboo chip rolls after cutting into set pattern lattice oblong-shaped, be dried, after stone, compressing, clipping edge, form bamboo recombined material at many levels on impregnation, redrying, moulding press.While rolling, bamboo chip is placed on and on roller roller, is rolled into the loose and staggered bamboo fiber bundle bar that is connected, longitudinally keeps original fiber direction, bamboo fiber bundle through impregnation redrying is mated formation on mould, and suppress after leveling at the two ends of bamboo fiber bundle bar.During compacting, use mould to be comprised of cope match-plate pattern, lower bolster, be pressed into tabularly through hot press, then trimming correction of the flank shape becomes flat panel products.
In above-mentioned technique, because needs add adhesive, be unfavorable for the environmental protection of product.Therefore be necessary to improve for above-mentioned defect.
Summary of the invention
For the deficiencies in the prior art, the invention provides the preparation method of the glue-free sheet material of a kind of bamboo fibre.
The present invention is achieved through the following technical solutions: the preparation method of the glue-free sheet material of a kind of bamboo fibre, the method comprises the steps: step 1, the fine technique of defibrator process solution: will after fresh bamboo sawing burst, send in boiling cylinder, control 145 ℃～190 ℃ of boiling temperatures, digestion time 3 min～10min, final machinery is separated fibre and is obtained bamboo fibre; Step 2, drying process: the bamboo fibre raw material that defibrator process is gone out adds soda acid auxiliary agent and waterproofing agent etc. while passing through plasma discharge, send into and launch a surprise attack formula drying tube through 120 ℃～180 ℃ dry processing of hot-air, controls its moisture content 4%～9%; Step 3, paving process: according to product thickness, take appropriate bamboo fibre raw material, utilize mechanical vacuum to mat formation to carry out uniform feeding and mat formation; Step 4, pre-pressing process: the bamboo fibre raw material through mating formation, be transported to precompressed station and carry out precompressed, by bamboo fibre compression exhaust, obtain having the slab of some strength; Step 5, Sawing Process: according to the suitable slab of product length and width size sawing; Step 6, hot press forming technology: by preformed base substrate send into hot press carry out hot-forming, 160 ℃～230 ℃ of hot pressing temperatures, hot pressing pressure 30kg/cm
2～85kg/cm
2, hot pressing time 5 min～30min, obtains the glue-free sheet material of bamboo fibre; Step 7, process for cooling: by belt conveyer, hot-forming bamboo fibre is sent into panel turnover machine without offset plate and carry out cooling; Step 8, clipping edge technique: by mitre saw, bamboo fibre is carried out to clipping edge without offset plate, make on demand specification section bar.
In technique scheme, described precompressed station precompression is at 10～35 kg/cm2.
In technique scheme, described soda acid auxiliary agent is sulfuric acid, hydrochloric acid, NaOH.
The present invention has following beneficial effect: the present invention does not add any adhesive, and product has the advantages such as intensity is good, fungi-proofing, anti-mildew, and the sheet material after processing can secondary operations veneer.
The specific embodiment
Below the present invention is described in further detail, the preparation method of the glue-free sheet material of a kind of bamboo fibre, the method comprises the steps: step 1, the fine technique of defibrator process solution: will after fresh bamboo sawing burst, send in boiling cylinder, control 145 ℃～190 ℃ of boiling temperatures, digestion time 3 min～10min, final machinery is separated fibre and is obtained bamboo fibre.Defibrating Technology is a very important ring wherein, has determined color and the energy consumption of product, even affects the speed of production of product, thus the market viability of final left and right product.And topmost technology controlling and process point is exactly digestion time in whole Defibrating Technology, if digestion time is longer than actual required digestion time, will cause plate face partially black, tendering of fiber and reduce plate internal bond strength, digestion time is too short can cause separate not exclusively fine.The present invention obtains 145 ℃～190 ℃ of boiling temperatures by repetition test, and digestion time 3 min～10min has guaranteed that the bamboo fibre obtaining can meet manufacturing technique requirent; Step 2, drying process: the bamboo fibre raw material that defibrator process is gone out adds during through plasma discharge after soda acid auxiliary agent to be sent into and launch a surprise attack formula drying tube through 120 ℃～180 ℃ dry processing of hot-air, controls its moisture content 4%～9%; Step 3, paving process: according to product thickness, take appropriate bamboo fibre raw material, utilize mechanical vacuum to mat formation to carry out uniform feeding and mat formation; Step 4, pre-pressing process: the bamboo fibre raw material through mating formation, be transported to precompressed station and carry out precompressed, described precompressed station precompression, at 10～35kg/cm2, by bamboo fibre compression exhaust, obtains having the slab of some strength, the mat moisture content 4～9% pressing in advance; Step 5, Sawing Process: according to the suitable slab of product length and width size sawing; Step 6, hot press forming technology: by preformed base substrate send into hot press carry out hot-forming, 180 ℃～230 ℃ of hot pressing temperatures, hot pressing pressure 30kg/cm
2～85kg/cm
2, hot pressing time 5 min～30min, obtains the glue-free sheet material of bamboo fibre; Step 7, process for cooling:
By belt conveyer, hot-forming bamboo fibre is sent into panel turnover machine without offset plate and carry out coolingly, make sheet material sizing, solidify thoroughly; Step 8, clipping edge technique: by mitre saw, bamboo fibre is carried out to clipping edge without offset plate, make on demand specification section bar.
Described soda acid auxiliary agent is sulfuric acid, hydrochloric acid, NaOH etc., and the object of interpolation is to make the bamboo fibre raw material that defibrator process obtains can meet glue-free manufacturing technique requirent, is conducive to hemicellulose and is degraded into compound sugar.
There is degraded and produce the low-molecular-weight material with natural gum stick nature in the present invention, then undegradable bamboo fibre is bonded together to form under temperature and pressure effect to have the glue-free environment-friendly sheet that higher force is learned performance under HTHP by the chemical composition material in bamboo fibre.Owing to making bamboo fibre form sheet material by degraded combination, in technique of the present invention, do not need to provide adhesive, therefore effectively reduced the use of adhesive, reduced production cost and pollution.
Claims (3)
1. the preparation method of the glue-free sheet material of bamboo fibre, the method comprises the steps: step 1, the fine technique of defibrator process solution: the fine technique of defibrator process solution: will send in boiling cylinder after fresh bamboo sawing burst, control 145 ℃～190 ℃ of boiling temperatures, digestion time 3 min～10min, final machinery is separated fibre and is obtained bamboo fibre; Step 2, drying process: the bamboo fibre raw material that defibrator process is gone out adds soda acid auxiliary agent and waterproofing agent etc. while passing through plasma discharge, send into and launch a surprise attack formula drying tube through 120 ℃～180 ℃ dry processing of hot-air, controls its moisture content 4%～9%; Step 3, paving process: according to product thickness, take appropriate bamboo fibre raw material, utilize mechanical vacuum to mat formation to carry out uniform feeding and mat formation; Step 4, pre-pressing process: the bamboo fibre raw material through mating formation, be transported to precompressed station and carry out precompressed, by bamboo fibre compression exhaust, obtain having the slab of some strength; Step 5, Sawing Process: according to the suitable slab of product length and width size sawing; Step 6, hot press forming technology: by preformed base substrate send into hot press carry out hot-forming, 160 ℃～230 ℃ of hot pressing temperatures, hot pressing pressure 30kg/cm
2～85kg/cm
2, hot pressing time 5 min～30min, obtains the glue-free sheet material of bamboo fibre; Step 7, process for cooling: by belt conveyer, hot-forming bamboo fibre is sent into panel turnover machine without offset plate and carry out cooling; Step 8, clipping edge technique: by mitre saw, bamboo fibre is carried out to clipping edge without offset plate, make on demand specification section bar.
2. the preparation method of the glue-free sheet material of a kind of bamboo fibre as claimed in claim 1, is characterized in that: described precompressed station precompression is at 10～35 kg/cm2.
3. the preparation method of the glue-free sheet material of a kind of bamboo fibre as claimed in claim 1, is characterized in that: described soda acid auxiliary agent is sulfuric acid, hydrochloric acid, NaOH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011629.6A CN103707381A (en) | 2014-01-10 | 2014-01-10 | Method for manufacturing non-glued bamboo fiber board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011629.6A CN103707381A (en) | 2014-01-10 | 2014-01-10 | Method for manufacturing non-glued bamboo fiber board |
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| CN103707381A true CN103707381A (en) | 2014-04-09 |
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| CN201410011629.6A Pending CN103707381A (en) | 2014-01-10 | 2014-01-10 | Method for manufacturing non-glued bamboo fiber board |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042133A (en) * | 2016-05-23 | 2016-10-26 | 宁波中加低碳新技术研究院有限公司 | Manufacturing method for outdoor floor tiles, floors and exterior wall cladding panels |
| CN108149385A (en) * | 2018-02-12 | 2018-06-12 | 张毅 | A kind of preparation method of natural fiber enhancing composite material |
| CN109605534A (en) * | 2019-01-16 | 2019-04-12 | 朱延朋 | A kind of preparation method of the degradable plate of composite biomass |
| CN110065129A (en) * | 2019-05-30 | 2019-07-30 | 浙江农林大学 | A method of plate is made using bamboo matter powder |
| CN110481068A (en) * | 2019-08-20 | 2019-11-22 | 昆山新世绿环保科技有限公司 | A kind of environmental protection three proofings graphene fibril board assembly line |
| CN111633777A (en) * | 2020-04-24 | 2020-09-08 | 湖州师范学院 | Hot-pressing process for gluing three-dimensional body of vascular bundle fiber without glue |
| CN111823351A (en) * | 2020-05-28 | 2020-10-27 | 深圳市智百灵建筑材料科技有限公司 | Preparation method of high-strength non-adhesive shaving board |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042133A (en) * | 2016-05-23 | 2016-10-26 | 宁波中加低碳新技术研究院有限公司 | Manufacturing method for outdoor floor tiles, floors and exterior wall cladding panels |
| CN108149385A (en) * | 2018-02-12 | 2018-06-12 | 张毅 | A kind of preparation method of natural fiber enhancing composite material |
| CN108149385B (en) * | 2018-02-12 | 2019-08-27 | 张毅 | A kind of preparation method of natural fiber enhancing composite material |
| CN109605534A (en) * | 2019-01-16 | 2019-04-12 | 朱延朋 | A kind of preparation method of the degradable plate of composite biomass |
| CN110065129A (en) * | 2019-05-30 | 2019-07-30 | 浙江农林大学 | A method of plate is made using bamboo matter powder |
| CN110481068A (en) * | 2019-08-20 | 2019-11-22 | 昆山新世绿环保科技有限公司 | A kind of environmental protection three proofings graphene fibril board assembly line |
| CN111633777A (en) * | 2020-04-24 | 2020-09-08 | 湖州师范学院 | Hot-pressing process for gluing three-dimensional body of vascular bundle fiber without glue |
| CN111633777B (en) * | 2020-04-24 | 2021-11-19 | 湖州师范学院 | Hot-pressing process for gluing three-dimensional body of vascular bundle fiber without glue |
| CN111823351A (en) * | 2020-05-28 | 2020-10-27 | 深圳市智百灵建筑材料科技有限公司 | Preparation method of high-strength non-adhesive shaving board |
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Application publication date: 20140409 |