CN101607411B - Bamboo fiber reinforced composite material and manufacturing method thereof - Google Patents

Bamboo fiber reinforced composite material and manufacturing method thereof Download PDF

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Publication number
CN101607411B
CN101607411B CN 200910089637 CN200910089637A CN101607411B CN 101607411 B CN101607411 B CN 101607411B CN 200910089637 CN200910089637 CN 200910089637 CN 200910089637 A CN200910089637 A CN 200910089637A CN 101607411 B CN101607411 B CN 101607411B
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China
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bamboo
arc
thick bamboo
semicircle thick
bamboo tube
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CN 200910089637
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Chinese (zh)
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CN101607411A (en
Inventor
余养伦
于文吉
苏志英
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中国林业科学研究院木材工业研究所
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Priority to CN 200910089637 priority Critical patent/CN101607411B/en
Publication of CN101607411A publication Critical patent/CN101607411A/en
Priority claimed from US13/201,279 external-priority patent/US20110293880A1/en
Priority claimed from EP10740935A external-priority patent/EP2397290A4/en
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Publication of CN101607411B publication Critical patent/CN101607411B/en

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Abstract

The invention relates to a bamboo fiber reinforced composite material and a manufacturing method thereof. The bamboo fiber reinforced composite material is formed by directional bamboo fiber felt and an adhesive layer; the upper surface and the lower surface and the thickness direction of the directional bamboo fiber felt are respectively provided with a series of longitudinal cracks which are disconnected uniformly and have nonuniform thickness; the manufacturing method thereof comprises the following steps: longitudinally splitting a section of bamboo tube into two semicircular bamboo tubesalong the diameter thereof, removing internal segments, defibering the internal arc surface of the semicircular bamboo tube by a driving roller and a defibering roller, then defibering the external arc surface of the semicircular bamboo tube, then carrying out glue applying, hot-pressing and forming the bamboo fiber reinforced composite material; the series of longitudinal cracks which are disconnected uniformly and have nonuniform thickness are defibered from both the internal arc surface and the external arc surface of the semicircular bamboo tube, simultaneously the bamboo green and bambooyellow are also removed, therefore, the bamboo fiber reinforced composite material and the manufacturing method thereof increase the effective gluing area of the bamboo material, improve the penetration path of the bamboo materials, lead the strength and hardness of the plywood to be greatly improved and having good processing performance.

Description

Bamboo fiber reinforced composite material and manufacturing approach thereof
Technical field
The present invention relates to a kind of bamboo fiber reinforced composite material and manufacturing approach thereof, be particularly suited for structure and decorative materials such as wind electricity blade material, structural lumber, building template, platform floor, ornament materials, furniture woods and floor that desired strength height, hardness reach good processability greatly.
Background technology
At present, the utilization of existing bamboo wood sheet material is to become thin bamboo strips used for weaving, bamboo chip or bamboo bundle, applying glue then to bamboo processing earlier; Processes such as assembly, gummed forms again; The elementary cell of bamboo wood sheet materializations such as thin bamboo strips used for weaving, bamboo chip or bamboo bundle all need be removed surf green and tabasheer, and not only processed complex especially needs a large amount of manual operationss; And the intensity of cut bamboo wood waste greatly, also reduction bamboo material, the waste of glue is also big simultaneously.
Recently, it is raw material to diameter less than the dwarf bamboo of 80mm that Chinese patent 02120518.3 provides a kind of, because the surf green wettability is poor, glue performance is also low; At first to adopt bamboo wood to go blue or green machine or sandblast to go blue or green machine to remove bamboo wood outer arc surface surf green, adopt then and cut open bamboo machine subdivision bamboo wood, roll over laterally with the bamboo wood rivet bucker more do not rupture, vertical loose and staggered continuous bamboo restraints; Though improved the utilization rate of bamboo wood, owing to adopt the operation of the surf green of removing dwarf bamboo specially comparatively complicated; The production efficiency of surf green of removing dwarf bamboo is lower; And the table tabasheer is not removed yet in the bamboo wood, the more important thing is: the bamboo bundle that spreading goes out through rivet bucker, and its bamboo bundle thickness is uneven, different in size; Be difficult to reach even distribution; Applying glue and moisture content are inevitable also inhomogeneous, and in fact, the intensity of the glued board of compacting and hardness improve limited.
Summary of the invention
The objective of the invention is to improve the deficiency of existing artificial bamboo board and manufacturing approach thereof; And a kind of bamboo fiber reinforced composite material and manufacturing approach thereof are provided; It is directly the semicircle thick bamboo tube of removing internal segment; Carry out several times and discongest repeatedly with its inner arc surface and outer arc surface the roller of discongesting respectively, through discongesting the extruding of tooth, within it, form the serial longitudinal crack of the thickness inequality of being interrupted on outer arc surface and the bamboo wall thereof respectively its inside and outside arc surface facing to fluffer; The bamboo green layer on its inside and outside arc surface and tabasheer layer are through discongesting the friction of tooth cutting, splitting and extruding and driven roller simultaneously; Make that surf green and tabasheer are that part comes off, crackle, fragment or particle state, thereby destroyed bamboo green layer and the original performance of tabasheer layer, form bamboo fiber reinforced composite material through impregnation, assembly, gummed then.
The objective of the invention is to realize like this:
A kind of bamboo fiber reinforced composite material; It is to be made up of directional bamboo fiber felt and adhesive layer; Form the uneven serial longitudinal crack of thickness of being interrupted on the inside and outside arc surface of directional bamboo fiber felt and the bamboo wall thereof respectively; Be provided with adhesive layer in this crack, and be equipped with a paper tinsel layer adhesive layer in the upper and lower surface and the circumferential surface thereof of directional bamboo fiber felt.
A kind of bamboo fiber reinforced composite material manufacturing approach may further comprise the steps:
1) bamboo woods such as mao bamboon, Dendrocalamus sinicus, green bamboo, cizu, sinocalamus latiflorus, Lei Zhu and firm bamboo are sawed the one section thick bamboo tube that is cut into 1.5m~20m length with bamboo wood, vertically cut open into two semicircle thick bamboo tubes along its diameter, and remove internal segment;
2) discongest semicircle thick bamboo tube inner arc surface:
With the discongest roller of one section semicircle thick bamboo tube inner arc surface facing to fluffer; And a termination that makes this semicircle thick bamboo tube is inserted driven roller and is discongested in the gap between the roller; Drag this semicircle thick bamboo tube forward in the process of translation at driven roller; Diverse location to semicircle thick bamboo tube inner arc surface carries out part vertically cutting and radial compression, the serial longitudinal crack of the thickness inequality that semicircle thick bamboo tube inner arc surface is discongested out be interrupted, and bamboo strip still keeps comparatively complete laminated structure; Simultaneously; To semicircle thick bamboo tube inner arc surface tabasheer layer cut, splitting and extruding, drive rod simultaneously outer arc surface bamboo green layer rubbed, surf green and tabasheer are partly come off, crackle, fragment or particle state; So carrying out several times discongests repeatedly;
3) discongest semicircle thick bamboo tube outer arc surface again:
The semicircle thick bamboo tube that above-mentioned inner arc surface was discongested turns over turnback; Even corresponding former semicircle thick bamboo tube outer arc surface faces toward the roller of discongesting of above-mentioned or fluffer same as described above, and make a termination of this semicircle thick bamboo tube insert driven roller and discongest in the gap between the roller employing as above-mentioned identical process; The serial longitudinal crack that the thickness that corresponding former semicircle thick bamboo tube outer arc surface is discongested out be interrupted is uneven; Simultaneously, to the wax of semicircle thick bamboo tube outer arc surface bamboo green layer cut, splitting and extruding, drive rod simultaneously inner arc surface tabasheer layer rubbed; Make that surf green and tabasheer are that part comes off, crackle, fragment or particle state, so carry out several times and discongest repeatedly;
Repeating step 2) and step 3) the semicircle thick bamboo tube carried out several times discongest repeatedly, on inside and outside surface that the semicircle thick bamboo tube is dredged and bamboo wall, form respectively the uneven serial longitudinal crack of the thickness of being interrupted and thickness evenly, vertical continuous bamboo fibre netted directional bamboo fiber felt that is interwoven.
4) drying:
Above-mentioned directional bamboo fiber felt of discongesting is done at drying baker inner drying or airing, and reaching moisture content is 8%~15%;
5) applying glue:
The adhesive that uses is the phenolic aldehyde adhesive; Solid content is 10-25%, and adopting the solid content of impregnation glue applying method synvaren is the 8-20% of directional bamboo fiber felt raw material oven dry weight, and the temperature of glue is a normal temperature during impregnation; The impregnation time is 5-10 minute; Take out, vertically placed 5-10 minute, the adhesive on surface is no longer dripped; With above-mentioned directional bamboo fiber felt in 40-60 ℃ of baking oven drying or airing to moisture content between 6-12%;
6) assembly:
Density according to preset takes by weighing directional bamboo fiber felt, and the directional bamboo fiber felt after the above-mentioned applying glue generally press the tabasheer layer inwardly, bamboo green layer outwardly, rift grain or intersection assembly obtain slab.
Perhaps: the density according to preset takes by weighing directional bamboo fiber felt, and the directional bamboo fiber felt after the above-mentioned applying glue is mated formation in mould equably.
7) hot pressing:
In above-mentioned heat pressing process, adopt coldly to advance-coldly go out technology, when the temperature of heating platen is 40~60 ℃, above-mentioned slab is sent in the hot press; Feeding superheated steam, heats up in the limit, limit pressurization, pressurize after hot pressing pressure reaches 3.5MPa; Hot pressing temperature is incubated after reaching 160 ℃, and temperature retention time is 0.5min/mm, afterwards, feeds cooling water; Make temperature be reduced to 40~60 ℃, pressure release is taken out slab and is obtained the combination product of needed polylith bamboo fiber reinforced composite material from press.
Perhaps adopt the baking and curing method of forming of colding pressing, the pressure of colding pressing is 8-13MPa, and patrix is pressed into the position of pin hole, plugs pin, and above-mentioned slab and mould are sent in the 140-160 ℃ of baking oven, and be 3-5h hardening time.Take out the back demoulding.
Form fiber between the said adjacent crackle, this fiber comprises 1-5 vascular bundle and several elementary organizations.
Said surface at driven roller has even protrusion pit.
The said tine length of discongesting is 1.1~3 times of two tooth longitudinal pitches, highly is 0.5~0.75 times of semicircle thick bamboo tube wall thickness.
Said directional bamboo fiber felt width expands to 2 times~5 times of semicircle thick bamboo tube arc length.
Beneficial effect of the present invention: not only the uneven serial longitudinal crack of thickness of evenly being interrupted is all discongested out on semicircle thick bamboo tube inner arc and outer arc surface; Surf green and tabasheer also are removed simultaneously; Thereby; Effective gummed area that has increased bamboo wood and the permeation pathway of having improved bamboo wood, intensity, the hardness of glued board are greatly improved and and processing characteristics not bad.
Description of drawings
Fig. 1 is the directional bamboo fiber felt stereogram of exemplary embodiments of the present invention;
The bamboo fiber reinforced composite material cross-sectional schematic of Fig. 2 exemplary embodiments of the present invention.
The fluffer of Fig. 3 exemplary embodiments of the present invention
The specific embodiment
The bamboo fiber reinforced composite material of exemplary embodiments of the present invention is to be made up of directional bamboo fiber felt 1 and adhesive layer 2, shown in Fig. 1~2, wherein:
Directional bamboo fiber felt 1 is on the upper and lower surface of bamboo wood and bamboo wall, to be respectively equipped with the uneven crack 11 of serial thickness of longitudinally being interrupted to constitute with even thickness, vertical constantly netted fiber that interweaves 12; As shown in Figure 1; And part comes off because cutting, splitting and extruding are for this directional bamboo fiber felt 1 surperficial surf green and tabasheer, crackle, fragment or particle state; This crack 11 is to be processed to form respectively in the inside and outside cambered surface of semicircle thick bamboo tube with fluffer; Form fiber 12 between the adjacent crack 11, this fiber 12 comprises 1-5 vascular bundle and several elementary organizations, and the width of directional bamboo fiber felt 1 reaches original 2~5 times of cutting semicircle thick bamboo tube 3 arc length open;
Adhesive layer 2 is penetrated in the crack 11 of directional bamboo fiber felt 1, is equipped with a paper tinsel layer adhesive layer 2 (phenolic resins) in the upper and lower surface and the circumferential surface thereof of directional bamboo fiber felt 1, and is as shown in Figure 2;
Because the directional bamboo fiber felt 1 of bamboo fiber reinforced composite material of the present invention is in distributing the equably longitudinal crack 11 of serial thickness inequality of width and thickness direction; Neither destroy the longitudinal fiber of original bamboo wood; Make adhesive layer 2 evenly and the compartment of terrain is penetrated in crackle 11 and the fiber 12 again; Form firm binding of glue nail and chemical bond, thereby improved intensity, hardness and the weatherability of original bamboo wood effectively.
The performance indications of the physical and mechanical property test of bamboo fiber reinforced composite material of the present invention, as shown in the table;
The physical and mechanical property of bamboo fiber reinforced composite material
Density (g/cm 3) 1.10 1.00 0.80
MOR (MPa) 288.6 253.7 156.1
Elastic modelling quantity (GPa) 28.9 24.1 16.43
Hot strength (MPa) 274.2 256.9 157.9
Stretch modulus (GPa) 30.0 28.4 17.6
Compressive strength (MPa) 150.9 147.8 112.3
The exemplary embodiments step of bamboo fiber reinforced composite material manufacturing approach of the present invention is following:
1, bamboo woods such as mao bamboon, Dendrocalamus sinicus, green bamboo, cizu, sinocalamus latiflorus, Lei Zhu and firm bamboo are sawed the one section thick bamboo tube that is cut into 1.5m~20m length with bamboo wood, vertically cut open into two semicircle thick bamboo tubes 3 along its diameter, and remove internal segment;
2, discongest semicircle thick bamboo tube inner arc surface:
Bamboo with a semicircular surface facing the inner arc of the ease fluffer roll, and to one end of the semicircular head of the bamboo into the drive roller and ease the gap between the rollers, the driving roller 4 Drag the pan forward semicircle process of bamboo 3 , since the outer periphery ease roll 5 provided with a plurality of uniformly distributed teeth 51 with ease the blade (the length of the longitudinal distance between two teeth is 1.1 to 3 times), which ease the teeth 51 (the height of the wall is semi-circular bamboo 3 0.5 to 0.75 times the thickness) of the semi-arc surface of the bamboo tube 3 is a partial longitudinal cut different positions, splitting and radial pressing, the semicircular arc bamboo 3 to ease the uniform and discontinuous surface cracks 11, shown in Figure 3 shows, and mingled surface remains relatively complete sheet structure; repeated several times so carried ease;
Simultaneously; Discongesting tooth 51 discongests in the process with driven roller 4 (adopting the salient point roller) cooperates; To semicircle thick bamboo tube 3 inner arcs surfaces tabasheer layer siliceous cut, splitting and extruding; Make that it is that part comes off, crackle, fragment or particle state, play the defective that wettability is poor, glue performance is low of the siliceous existence that destroys the tabasheer layer, thereby reach the effect that improves glue performance;
And bamboo strip still keeps comparatively complete laminated structure; Bamboo wood is that outer arc, tabasheer are that the thaumatropy of inner arc is that yellow bamboo face is that outer arc, bamboo strip are the structure of inner arc by bamboo strip; Will form yellow bamboo face like this and receive the tensile force effect; The bamboo strip power effect that is squeezed helps coming off of surf green and tabasheer;
3, discongest semicircle thick bamboo tube 3 outer arcs surface again:
Because the above-mentioned inner arc surface semicircle thick bamboo tube 3 of discongesting, former bamboo strip still keeps comparatively complete laminated structure, and bamboo wood is that outer arc, tabasheer are that the thaumatropy of inner arc is that yellow bamboo face is that outer arc, bamboo strip are the structure of inner arc by bamboo strip;
At this moment; The semicircle thick bamboo tube 3 of more above-mentioned inner arc surface being discongested turns over turnback; Even roller 5 is discongested facing to above-mentioned or fluffer same as described above in corresponding former semicircle thick bamboo tube 3 outer arcs surfaces (bamboo strip), and make a termination of this semicircle thick bamboo tube 3 insert driven roller 4 and discongest in the gap between the roller 5, adopt as above-mentioned identical process; Make corresponding former semicircle thick bamboo tube 3 outer arc surfaces discongest out the crack 11 of evenly being interrupted, so carry out several times to discongest repeatedly;
Simultaneously; Discongest the discongesting in the process of cooperation of tooth 51 and driven roller 4 (surface has even protrusion pit); Wax to semicircle thick bamboo tube 3 outer arcs surface bamboo green layer is cut and is pushed; Make that it is that part comes off, crackle, fragment or particle state, thereby, play the defective that wettability is poor, glue performance is low that the wax of destroying bamboo green layer exists;
In addition; Through repeating repeatedly the effect of discongesting of step 2 and 3; With above-mentioned semicircle thick bamboo tube 3 discongest width and thickness direction be provided with the uneven serial longitudinal crack 11 of the thickness of being interrupted and thickness evenly, the vertical directional fiber felt 1 formed of the constantly netted fiber that interweaves 12; This fiber 12 comprises 1-5 vascular bundle and several elementary organizations, and the width of this directional bamboo fiber felt 1 can expand to 2 times~5 times of original semicircle thick bamboo tube 3 arc length, makes the good Zhu Bi top of glue performance be well exposed to the outer arc surface; Thereby, effective gummed area that has increased bamboo wood and the permeation pathway of having improved bamboo wood;
4) drying:
Above-mentioned directional bamboo fiber felt of discongesting is done at drying baker inner drying or airing, and reaching moisture content is 8%~15%;
5) applying glue:
The adhesive that uses is the phenolic aldehyde adhesive; Solid content is 10-25%, and adopting the solid content of impregnation glue applying method synvaren is the 8-20% of directional bamboo fiber felt raw material oven dry weight, and the temperature of glue is a normal temperature during impregnation; The impregnation time is 5-10 minute; Take out, vertically placed 5-10 minute, the adhesive on surface is no longer dripped; With above-mentioned directional bamboo fiber felt in 40-60 ℃ of baking oven drying or airing to moisture content between 6-12%;
6) assembly:
Density according to preset takes by weighing directional bamboo fiber felt, and the directional bamboo fiber felt after the above-mentioned applying glue generally press the tabasheer layer inwardly, bamboo green layer outwardly, rift grain or intersection assembly obtain slab.
Perhaps: the density according to preset takes by weighing directional bamboo fiber felt, and the directional bamboo fiber felt after the above-mentioned applying glue is mated formation in mould equably.
7) hot pressing:
In above-mentioned heat pressing process, adopt coldly to advance-coldly go out technology, when the temperature of heating platen is 40~60 ℃, above-mentioned slab is sent in the hot press; Feeding superheated steam, heats up in the limit, limit pressurization, pressurize after hot pressing pressure reaches 3.5MPa; Hot pressing temperature is incubated after reaching 160 ℃, and temperature retention time is 0.5min/mm, afterwards, feeds cooling water; Make temperature be reduced to 40~60 ℃, pressure release is taken out slab and is obtained the combination product of needed polylith bamboo fiber reinforced composite material from press.
Perhaps adopt the baking and curing method of forming of colding pressing, the pressure of colding pressing is 8-13MPa, and patrix is pressed into the position of pin hole, plugs pin, and above-mentioned slab and mould are sent in the 140-160 ℃ of baking oven, and be 3-5h hardening time.Take out the back demoulding.

Claims (6)

1. bamboo fiber reinforced composite material; It is characterized in that; It is to be made up of directional bamboo fiber felt and adhesive layer, directional bamboo fiber felt for by the semicircle thick bamboo tube through discongesting to the wax of semicircle thick bamboo tube outer arc surface bamboo green layer cut, splitting and extruding, make that it is that part comes off, crackle, fragment or particle state, to semicircle thick bamboo tube inner arc surface tabasheer layer siliceous cut, splitting and extruding; Make that it is that part comes off, crackle, fragment or particle state; And on the upper and lower surface of this semicircle thick bamboo tube and bamboo wall thereof, be respectively equipped with the uneven serial longitudinal crack of thickness of being interrupted, form fiber between the adjacent crack, this fiber comprises 1-5 vascular bundle and several elementary organizations; Be provided with adhesive layer in this crack, and be equipped with a paper tinsel layer adhesive layer in the upper and lower surface and the circumferential surface thereof of directional bamboo fiber felt.
2. a bamboo fiber reinforced composite material manufacturing approach is characterized in that, may further comprise the steps:
1) gets mao bamboon, Dendrocalamus sinicus, green bamboo, cizu, sinocalamus latiflorus, thunder bamboo or firm bamboo bamboo wood, this bamboo wood is sawed the one section thick bamboo tube that is cut into 1.5m~20m length, vertically cut open into two semicircle thick bamboo tubes along its diameter, and remove internal segment;
2) discongest semicircle thick bamboo tube inner arc surface:
With the discongest roller of one section semicircle thick bamboo tube inner arc surface facing to fluffer; And a termination that makes this semicircle thick bamboo tube is inserted driven roller and is discongested in the gap between the roller; Drag this semicircle thick bamboo tube forward in the process of translation at driven roller; Diverse location to semicircle thick bamboo tube inner arc surface carries out part vertically cutting and radial compression, the serial longitudinal crack of the thickness inequality that semicircle thick bamboo tube inner arc surface is discongested out be interrupted, and bamboo strip still keeps comparatively complete laminated structure; Simultaneously; To semicircle thick bamboo tube inner arc surface tabasheer layer siliceous cut, splitting and extruding, driven roller rubs to the outer arc surface simultaneously, surf green and tabasheer is partly come off, crackle, fragment or particle; So carrying out several times discongests repeatedly;
3) discongest semicircle thick bamboo tube outer arc surface again:
The semicircle thick bamboo tube that above-mentioned inner arc surface was discongested turns over turnback; Even corresponding former semicircle thick bamboo tube outer arc surface is facing to the roller of discongesting of above-mentioned or fluffer same as described above; And a termination that makes this semicircle thick bamboo tube inserts driven roller and discongests in the gap between the roller, adopts as above-mentioned identical process, the uneven serial longitudinal crack of thickness that corresponding former semicircle thick bamboo tube outer arc surface is discongested out be interrupted; Simultaneously; Wax to semicircle thick bamboo tube outer arc surface bamboo green layer is cut, splitting and extruding, and simultaneously, said driven roller rubs to inner arc surface tabasheer layer; Make that surf green and tabasheer are that part comes off, crackle, fragment or particle state, so carry out several times and discongest repeatedly;
Repeating step 2) and step 3) the semicircle thick bamboo tube carried out several times discongest repeatedly, on inside and outside surface that the semicircle thick bamboo tube is dredged and bamboo wall, form respectively the uneven serial longitudinal crack of the thickness of being interrupted and thickness evenly, vertical continuous bamboo fibre netted directional bamboo fiber felt that is interwoven;
4) drying:
Above-mentioned directional bamboo fiber felt of discongesting is done at drying baker inner drying or airing, and reaching moisture content is 8%~15%;
5) applying glue:
The adhesive that uses is synvaren, and solid content is 10-25%, adopts the impregnation glue applying method; The solid content of synvaren is the 8-20% of directional bamboo fiber felt raw material oven dry weight; The temperature of glue is a normal temperature during impregnation, and the impregnation time is 5-10 minute, takes out; The vertical placement 5-10 minute no longer dripped the adhesive on surface; With above-mentioned directional bamboo fiber felt in 40-60 ℃ of baking oven drying or airing to moisture content between 6-12%;
6) assembly:
Density according to preset takes by weighing directional bamboo fiber felt, and the bamboo fiber felt after the above-mentioned applying glue press the tabasheer layer inwardly, bamboo green layer outwardly, rift grain or intersection assembly obtain slab;
7) hot pressing:
In heat pressing process, adopt coldly to advance-coldly go out technology, when the temperature of heating platen is 40~60 ℃, above-mentioned slab is sent in the hot press; Feeding superheated steam, heats up in the limit, limit pressurization, pressurize after hot pressing pressure reaches 3.5MPa; Hot pressing temperature is incubated after reaching 160 ℃, and temperature retention time is 0.5min/mm, afterwards, feeds cooling water; Make temperature be reduced to 40~60 ℃, pressure release is taken out slab and is obtained the combination product of needed polylith bamboo fiber reinforced composite material from hot press.
3. bamboo fiber reinforced composite material manufacturing approach is characterized in that may further comprise the steps:
1) gets mao bamboon, Dendrocalamus sinicus, green bamboo, cizu, sinocalamus latiflorus, thunder bamboo or firm bamboo bamboo wood, this bamboo wood is sawed the one section thick bamboo tube that is cut into 1.5m~20m length, vertically cut open into two semicircle thick bamboo tubes along its diameter, and remove internal segment;
2) discongest semicircle thick bamboo tube inner arc surface:
With the discongest roller of one section semicircle thick bamboo tube inner arc surface facing to fluffer; And a termination that makes this semicircle thick bamboo tube is inserted driven roller and is discongested in the gap between the roller; Drag this semicircle thick bamboo tube forward in the process of translation at driven roller; Diverse location to semicircle thick bamboo tube inner arc surface carries out part vertically cutting and radial compression, the serial longitudinal crack of the thickness inequality that semicircle thick bamboo tube inner arc surface is discongested out be interrupted, and bamboo strip still keeps comparatively complete laminated structure; Simultaneously; To semicircle thick bamboo tube inner arc surface tabasheer layer siliceous cut, splitting and extruding, driven roller rubs to the outer arc surface simultaneously, surf green and tabasheer is partly come off, crackle, fragment or particle; So carrying out several times discongests repeatedly;
3) discongest semicircle thick bamboo tube outer arc surface again:
The semicircle thick bamboo tube that above-mentioned inner arc surface was discongested turns over turnback; Even corresponding former semicircle thick bamboo tube outer arc surface is facing to the roller of discongesting of above-mentioned or fluffer same as described above; And a termination that makes this semicircle thick bamboo tube inserts driven roller and discongests in the gap between the roller, adopts as above-mentioned identical process, the uneven serial longitudinal crack of thickness that corresponding former semicircle thick bamboo tube outer arc surface is discongested out be interrupted; Simultaneously; Wax to semicircle thick bamboo tube outer arc surface bamboo green layer is cut, splitting and extruding, and simultaneously, said driven roller rubs to inner arc surface tabasheer layer; Make that surf green and tabasheer are that part comes off, crackle, fragment or particle state, so carry out several times and discongest repeatedly;
Repeating step 2) and step 3) the semicircle thick bamboo tube carried out several times discongest repeatedly, on inside and outside surface that the semicircle thick bamboo tube is dredged and bamboo wall, form respectively the uneven serial longitudinal crack of the thickness of being interrupted and thickness evenly, vertical continuous bamboo fibre netted directional bamboo fiber felt that is interwoven;
4) drying:
Above-mentioned directional bamboo fiber felt of discongesting is done at drying baker inner drying or airing, and reaching moisture content is 8%~15%;
5) applying glue:
The adhesive that uses is synvaren, and solid content is 10-25%, adopts the impregnation glue applying method; The solid content of synvaren is the 8-20% of directional bamboo fiber felt raw material oven dry weight; The temperature of glue is a normal temperature during impregnation, and the impregnation time is 5-10 minute, takes out; The vertical placement 5-10 minute no longer dripped the adhesive on surface; With above-mentioned directional bamboo fiber felt in 40-60 ℃ of baking oven drying or airing to moisture content between 6-12%;
6) assembly: the density according to preset takes by weighing directional bamboo fiber felt, and the directional bamboo fiber felt after the applying glue is mated formation equably in mould;
7) hot pressing: adopt the baking and curing method of forming of colding pressing, the pressure of colding pressing is 8-13MPa, and patrix is pressed into the position of pin hole, plugs pin, and it is in the 140-160 ℃ of baking oven that slab and mould are sent into temperature, and be 3-5h hardening time; Take out the back demoulding.
4. according to claim 2 or 3 said a kind of bamboo fiber reinforced composite material manufacturing approaches, it is characterized in that having even protrusion pit on the surface of driven roller.
5. according to claim 2 or 3 said a kind of bamboo fiber reinforced composite material manufacturing approaches, it is characterized in that the said tine length of discongesting on the roller of discongesting is 1.1~3 times of two tooth longitudinal pitches, highly is 0.5~0.75 times of semicircle thick bamboo tube wall thickness.
6. according to claim 2 or 3 said a kind of bamboo fiber reinforced composite material manufacturing approaches, it is characterized in that said directional bamboo fiber felt width expands to 2 times~5 times of semicircle thick bamboo tube arc length.
CN 200910089637 2009-07-27 2009-07-27 Bamboo fiber reinforced composite material and manufacturing method thereof CN101607411B (en)

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CN 200910089637 CN101607411B (en) 2009-07-27 2009-07-27 Bamboo fiber reinforced composite material and manufacturing method thereof
US13/201,279 US20110293880A1 (en) 2009-02-13 2010-02-11 Bamboo artificial board and producing method thereof
PCT/CN2010/070655 WO2010091643A1 (en) 2009-02-13 2010-02-11 Bamboo artificial board and producing method thereof
EP10740935A EP2397290A4 (en) 2009-02-13 2010-02-11 Bamboo artificial board unit, manufacturing method thereof and apparatus therefor
PCT/CN2010/070663 WO2010091646A1 (en) 2009-02-13 2010-02-11 Bamboo artificial board unit, manufacturing method thereof and apparatus therefor
US13/201,223 US20110293885A1 (en) 2009-02-13 2010-02-11 Bamboo artificial board unit, manufacturing method thereof and apparatus therefor
EP10740932A EP2397289A4 (en) 2009-02-13 2010-02-11 Bamboo artificial board and producing method thereof

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CN102407551A (en) * 2011-11-14 2012-04-11 朱江福 Hot pressing method for preparing bamboo floor
CN102528860A (en) * 2012-02-22 2012-07-04 中南林业科技大学 Method for improving gluing uniformity of heavy bamboo and improving bonding strength
CN103552143B (en) * 2013-10-22 2015-07-01 浙江省林产品质量检测站 Cylindrical reconstituted bamboo lumber cold-pressing mold and cylindrical reconstituted bamboo lumber manufacturing method
CN105150351A (en) * 2015-08-31 2015-12-16 安徽宏宇竹业科技股份有限公司 Bamboo pillar manufacturing technical method
CN105235022A (en) * 2015-09-28 2016-01-13 中国林业科学研究院木材工业研究所 Bamboo-wood composite laminated timber for structure and manufacturing method thereof
CN105619570B (en) * 2015-12-29 2018-06-01 南京林业大学 A kind of preparation method of high-weatherability Recombined bamboo
SE540292C2 (en) * 2016-10-28 2018-05-22 Stora Enso Oyj Method of making a laminated wood product and such a laminated wood product
CN108247810A (en) * 2018-03-29 2018-07-06 黄河三角洲京博化工研究院有限公司 A kind of method that Scrimber is produced using brush wood as raw material
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