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CN1133533C - Method of recombining bamboo material into reinforced shapes - Google Patents

Method of recombining bamboo material into reinforced shapes Download PDF

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Publication number
CN1133533C
CN1133533C CNB991178092A CN99117809A CN1133533C CN 1133533 C CN1133533 C CN 1133533C CN B991178092 A CNB991178092 A CN B991178092A CN 99117809 A CN99117809 A CN 99117809A CN 1133533 C CN1133533 C CN 1133533C
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CN
China
Prior art keywords
bamboo
glue
section bar
recombining
bamboo material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
CNB991178092A
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Chinese (zh)
Other versions
CN1284424A (en
Inventor
叶靓观
刘居煌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anji Yafeng Bamboo Wood Co. Ltd.
Original Assignee
ANJI TIANFENJG TIMBER INDUSTRY Co Ltd
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Filing date
Publication date
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Application filed by ANJI TIANFENJG TIMBER INDUSTRY Co Ltd filed Critical ANJI TIANFENJG TIMBER INDUSTRY Co Ltd
Priority to CNB991178092A priority Critical patent/CN1133533C/en
Priority to DE2000108647 priority patent/DE10008647A1/en
Publication of CN1284424A publication Critical patent/CN1284424A/en
Application granted granted Critical
Publication of CN1133533C publication Critical patent/CN1133533C/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention relates to a production method for reorganizing bamboo wood to be intensified into a section material. More specifically, bamboo is broken into bamboo filaments which are dipped and glue and moulded after being dried and are pressed and solidified into the section material at high voltage of 10 to 100Mpa. The method has the advantages of high utilization rate of bamboo wood and simple technology, and the manufactured section material has the advantages of large specific gravity, high intensity and good size stability. The section material retains natural textures of the bamboo wood, and the method is also suitable for other materials capable of being broken into the filaments to be reorganized and intensified into the section material, such as other kinds of bamboo wood.

Description

The method of recombining bamboo material into reinforced shapes
Technical field
The present invention relates to the method for bamboo processing utilization.
Background technology
Fully the exploitation bamboo timber resource improves bamboo wood use value, accomplishes wood substituted by bamboo, alleviates human dependence to timber, reaches the protection ecological balance, is the hope that current people dream of.
Before the present invention, it is that mao bamboon is split sheet that people become the conventional method of section bar with bamboo processing, after the drying, goes arc to be processed into the bamboo chip that the cross section is a rectangle, and applying glue then coincides, and section bar is gluedd joint in compacting.
When the thicker section bar of needs, then with the above-mentioned section bar that once coincides and glued joint, after planing, multi-disc coincides and is glued to the section bar of desired thickness again.
This forming method, complex process can not time processing become thicker section bar, and the section bar kind of processing is single, can only be processed into the section bar that the cross section becomes rectangle.
This forming method, utilization rate of bamboo is low.Because mao bamboon is arc, the bamboo plate of arc is processed into the bamboo chip of rectangle, its waste is well imagined, and bamboo taper bamboo wall is thinner, can't draw materials, the mao bamboon that diameter is less also can't be drawn materials.Integrate and see, this forming method, to the utilization rate of mao bamboon less than 20%.
This forming method, the bamboo board of making, easily crooked arch becomes, serious the causing cracking that comes unstuck.As everyone knows, mao bamboon can be unfolded in dry run and flattens a bit, becomes Qu Yidian and can draw a bow in moisture absorption process, and this is because due to the fiber thickness and density difference of mao bamboon ectonexine.Mao bamboon is processed into the rectangle bamboo chip, and fails to destroy the ectonexine difference of itself, when its moisture absorption, then can be inwardly constantly crooked.Therefore, when adopting this manufacturing process, storage or when using under bigger humidity environment, hygroscopic deformation constantly, weight person's cracking that comes unstuck.
This forming method, the section bar density of making can only approach the density of former bamboo.In the process of glueing joint moulding, if adopt high pressure that it is pressed into the high density section bar, the solidification by cement moulding, by the section bar of high pressure compressed, can be constantly slowly expand after the demoulding, as the section bar of the pressure compacting of adopting 80MPa (800Kg/cm2), 35-50% slowly expands after storing, huge expansion, even adopt high performance epoxy glue to glued joint, made section bar ftractures inevitably.Thereby this forming method can't make high performance section bar at all.
This forming method is pieced together repeatedly by bamboo chip a slice a slice and to be gluedd joint to get up, from outside watch, piecing together repeatedly the place has tangible splicing seam, the outward appearance of section bar that influence becomes.
The method of the bamboo wood recombination sectional material before the present invention also has mao bamboon is fragmented into fragment or broken end, and glue, the mould curing molding.This forming method, its glue consumption is very high, reaches more than 40%, is similar to the composite that the bamboo material adds glue, and cost is very high, becomes section bar to lack the native texture of bamboo wood simultaneously, and there are tangible sizing material layer and bamboo wood layer in inside.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method that can overcome the recombining bamboo material into reinforced shapes of above-mentioned defective, for this reason, the present invention is by the following technical solutions: it is split into the bamboo silk with mao bamboon, impregnation is adorned mould after drying, suppress and be solidified into section bar through high pressure (10-100MPa) again, the glue content behind the bamboo silk impregnation is 6%-15%.
The method of recombining bamboo material into reinforced shapes of the present invention is taken mao bamboon when splitting thread, owing to only remove a spot of surf green tabasheer, simultaneously, and thickness no matter, no matter the bamboo root bamboo tip all can utilize.So the utilization rate to bamboo wood is high, up to more than 80%.
The method of recombining bamboo material into reinforced shapes of the present invention, its essence is the bamboo fiber of having recombinated.The bamboo silk is when the filling mould, owing to be arbitrarily to load, the ectonexine of bamboo silk is that (side of bamboo fibre Guan Mi is for outer in arrangement arbitrarily, the side that the bamboo fibre pipe is dredged is an internal layer, because this ectonexine difference, cause the bamboo silk can be crooked in moisture absorption process), make section bar after, the bending arch of each bamboo silk in moisture absorption process becomes, and offsets each other; Simultaneously, because the bamboo filopodium is enough thin, the internal stress that its moisture absorption produces is little, and the splicing specific area is very big, so this internal stress far is not enough to the splicing face that destroys.Like this, fundamentally eliminated become the section bar shortcoming that crooked arch becomes in moisture absorption process.When selecting the good adhesive of water resistance for use, as phenol glue, according to the section bar that the present invention's method is made, it boiled in boiling water 1 hour, did not also have obviously distortion, did not have any cracking.
The method of recombining bamboo material into reinforced shapes of the present invention, because the bamboo silk under high pressure can successfully reorganize moulding, thereby can easily bamboo wood be reassembled into the column section bar that cross section is desirable profile, as a same reason, can easily bamboo wood once be reassembled into the not only wide but also big section bar of cross section.
The method of recombining bamboo material into reinforced shapes of the present invention, the pressure 10-100MPa (100-1000kg/cm2) of compression moulding, become the density of section bar at 0.9-1.3g/cm3.Because the present invention's method, employing is split into the bamboo silk with mao bamboon and reassembles into section bar, it is very big to glued joint specific area like this, although adopted up to the high pressure compacting of 100MPa and gluedd joint moulding, the internal stress of its generation still is not enough to destroy splicing power, at room temperature store 1 year, also kept good dimensional stability, produced 0.5% expansion in only initial one month.Since become section bar both to keep the excellent properties of bamboo fibre, have high density again, so have high physical property.
The method of recombining bamboo material into reinforced shapes of the present invention very tight between the bamboo silk owing to adopted the high pressure compacting, even thereby glue content very low (low reach 6%), can guarantee that also glue glue becomes the section bar of excellent properties.But being good more than 8%.When glue content surpasses more than 15%, bonding property there is not obvious raising.
Adopt when of the present invention, pressing pressure can not be too little, more than the 10MPa, is preferably in more than the 50MPa at least, and the section bar performance of making is excellent especially.
The method of recombining bamboo material into reinforced shapes of the present invention, owing in the process of system section bar, be the bamboo silk to be arranged reorganization along a direction strengthen into section bar, the glue content of adding is low again, thereby has kept the native texture of bamboo wood fully.
The essence of recombining bamboo material into reinforced shapes of the present invention is, bamboo wood is split into silk, and the impregnation press curing becomes section bar again.Therefore, the material that other can be split into silk all can adopt the inventive method, as the bamboo wood of other type etc.
Description of drawings
Fig. 1 is the flow chart of prior art.
Fig. 2 is the defective schematic diagram of prior art.
Fig. 3 is a schematic flow sheet of the present invention.
The specific embodiment
With reference to accompanying drawing 3.The method of recombining bamboo material into reinforced shapes of the present invention is that mao bamboon is blocked.Be split into the bamboo silk, impregnation is adorned mould after drying, suppresses and be solidified into section bar.
Specifically, reinstate wet mao bamboon, be cut into needed length, be split into bamboo chip 1, with wire drawing machine wire drawing 2, dry then.
Take dry good bamboo silk impregnation.Glue can be selected the phenol glue bonding agent for use, melamine one formaldehyde bonding agent, and epoxy adhesive, the unsaturated-resin bonding agent, the stick of water-tolerants such as polyurethane adhesive avoids selecting for use the bonding agent of urinating aldehyde one class poor water resistance as far as possible.
The bamboo silk dries solvent after having soaked glue, fills in then in the mould, and with the press compacting, pressure is 10-100Mpa, and heating allows it fully solidify.
The back demoulding that is cured, the section bar that the reorganization of bamboo wood is strengthened has promptly been made.

Claims (6)

1, the method for recombining bamboo material into reinforced shapes is characterized in that mao bamboon is split into the bamboo silk, and section bar is suppressed and be solidified into to impregnation dress mould through high pressure (10-100MPa) more after drying, and the glue content behind the bamboo silk impregnation is 6%-15%.
2, the method for recombining bamboo material into reinforced shapes as claimed in claim 1, pressure is preferably in more than the 50MPa when it is characterized in that suppressing.
3, the method for recombining bamboo material into reinforced shapes as claimed in claim 1 is characterized in that used glue is water-fast glue, and described water-fast glue is phenol glue, epoxy glue, unsaturated-resin glue, carbamide glue and polyurethane adhesive.
4, the method for recombining bamboo material into reinforced shapes as claimed in claim 1 is characterized in that glue content is good with 8%-15%.
5,, it is characterized in that described bamboo wood comprises the bamboo wood of other kinds as the method for claim 1,2,3 or 4 described recombining bamboo material into reinforced shapes.
6, as the method for claim 1,2,3 or 4 described recombining bamboo material into reinforced shapes, it is characterized in that the appearance profile of described one-tenth section bar forms according to mould, comprise sheet material and column shape section bar.
CNB991178092A 1999-08-15 1999-08-15 Method of recombining bamboo material into reinforced shapes Ceased CN1133533C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNB991178092A CN1133533C (en) 1999-08-15 1999-08-15 Method of recombining bamboo material into reinforced shapes
DE2000108647 DE10008647A1 (en) 1999-08-15 2000-01-31 Method of recombining bamboo material into reinforced shapes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB991178092A CN1133533C (en) 1999-08-15 1999-08-15 Method of recombining bamboo material into reinforced shapes

Publications (2)

Publication Number Publication Date
CN1284424A CN1284424A (en) 2001-02-21
CN1133533C true CN1133533C (en) 2004-01-07

Family

ID=5280270

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB991178092A Ceased CN1133533C (en) 1999-08-15 1999-08-15 Method of recombining bamboo material into reinforced shapes

Country Status (2)

Country Link
CN (1) CN1133533C (en)
DE (1) DE10008647A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100408290C (en) * 2006-05-26 2008-08-06 李和麟 Production process of high density carbonized bamboo material

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100364735C (en) * 2004-03-03 2008-01-30 上海春德武道用品有限公司 Method for manufacturing a conflict article
CN100345668C (en) * 2004-12-14 2007-10-31 郎妙金 Bamboo-wood composite section bar production method
US7836655B2 (en) 2006-09-25 2010-11-23 Teragren Llc Bamboo flooring planks with glueless locking system
CN100375667C (en) * 2006-10-28 2008-03-19 李坚华 Carbonized color difference fancy artificial plate blank and its producing method
CN100575019C (en) * 2007-10-30 2009-12-30 杭州大庄地板有限公司 A kind of bamboo cord wood producing method
CN101676078A (en) 2008-09-19 2010-03-24 斯戴尔有限责任上市公司 Artificial timber product and production method thereof
US8389056B1 (en) 2009-05-28 2013-03-05 COR Engineered Woods LLC Decorative engineered bamboo products and method of manufacturing
CN102528893A (en) * 2012-03-09 2012-07-04 江西康替龙竹业有限公司 Method for preparing environment-friendly bamboo recombinant material
WO2014137294A1 (en) 2013-03-06 2014-09-12 Eidgenoessische Technische Hochschule Zurich (Swiss Federal Institute Of Technology Zurich) Bamboo composite material for structural applications and method of fabricating the same
CN105500475A (en) * 2015-12-11 2016-04-20 国家林业局北京林业机械研究所 Production method of disposable curved surface three-dimensional shapes of bamboo materials
CN105968861A (en) * 2016-07-12 2016-09-28 福建农林大学 Light-color formaldehyde-free recombined bamboo sheet and preparation method thereof
CN108608551A (en) * 2018-04-07 2018-10-02 南京林业大学 A kind of Recombined bamboo non-uniform member manufacture mold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100408290C (en) * 2006-05-26 2008-08-06 李和麟 Production process of high density carbonized bamboo material

Also Published As

Publication number Publication date
DE10008647A1 (en) 2001-06-13
CN1284424A (en) 2001-02-21

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