CN103231423B - A kind of laminate bamboo radical fiber composite material and manufacture method thereof - Google Patents
A kind of laminate bamboo radical fiber composite material and manufacture method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of laminate bamboo radical fiber composite material, and provide manufacture method, with bamboo wood, adhesive and polymer for raw material, first, by bamboo processing well-thought-out plan base fibrous composite; Afterwards, bamboo base fibrous composite is compounded to form hollow square column by restructuring; Then, filled polymer in hollow square column, and make polymer cure form foam, thus the laminate bamboo radical fiber composite material manufactured, the invention solves the superfluous and secondary recombination process of bamboo base fibrous composite performance because gluing together the bad obstruction bamboo base fibrous composites such as strength retrogression that cause for the technical bottleneck of structural wood, this laminate bamboo radical fiber composite material may be used for beam, post, furniture and large scale outdoor floor.
Description
Technical field
The invention belongs to the wood-based plate in industry of artificial boards and manufacturing technology field thereof, be particularly useful for mechanical property requirements high, building and the Engineered Wood Products such as the beam that specification is large, post, furniture and floor.
Background technology
Bamboo base fibrous composite is by bamboo wood after discongesting and forming fibrillatable Bamboo veneer, more a kind of novel building processed through operations such as super-dry, impregnation, drying, assembly and gummeds and Engineered Wood Products.This material MOR can reach more than 350MPa, hot strength reaches more than 360MPa, compressive strength reaches more than 140MPa, elastic modelling quantity reach 27GPa [Yu Wenji. the progress [J] of China's high-performance bamboo base fibrous composite. timber industry, 2011,25 (1): 6-8,29], there is good physical and mechanical property, bamboo base fibrous composite is directly used in beam, post, furniture and floor etc., often cause intensity superfluous, cause waste; In the process of composition, the density of this material reaches 1.05 ~ 1.30g/cm
3, because material deadweight is larger, easily causes and use inconvenience.
Secondly, the production technology of bamboo base fibrous composite is mainly divided into two large classes: a class is cold forming, heat curing process, is called for short cold-press process; Two is use for reference wood-based plate conventional thermocompression technique, the bamboo base fibrous composite heat pressing process of formation.Due to the restriction of the specification by cold press and hot press device, at present, the specification of bamboo base fibrous composite is all less, and the specification (long × wide × thick) that the bamboo base fibrous composite square stock as cold-press method production is conventional is: 193cm × 10.5 × 15.0 and 200cm × 14.5cm × 15.0; The bamboo base fibrous composite stock size (long × wide × thick) that heat pressing process is produced is: 244cm × 122cm × (1.5-4) cm, maximum breadth also can only reach 500 × 120cm × 5cm (Yu Wenji, China's bamboo base fibrous composite industry development situation and trend is analyzed, timber industry, 2012,26 (1): 11-14).Such specification is difficult to meet the specification requirement of structural wood as beam, post, large-scale furniture and large gauge floor.
Moreover the structural wood of large gauge adopts Lengthwise joint by the material of small dimension usually, laterally spells wide, and the splicing of restructuring compound forms.Glued joint the decline that bad meeting causes plate property, glued joint common defect type and comprise: come unstuck, crack, air strike, bondline thickness variation, solidification incomplete sum surface preparation defect etc., wherein, come unstuck, crack and surface preparation defect be main.The principal element affecting adhesive bonding of composites intensity has: the impact of the factors such as the material category of connected piece, the ratio of rigidity of connected piece and thermal coefficient of expansion, make by the rigidity approximately equal of bonded part whenever possible as far as possible, thermal expansion (beneficial little Su close to moisture expantion, composite handbook, Chemical Industry Press, 2009).
Chinese patent 201010243351.7,201020279829.7,201020279815.5 provide a kind of undersized log that adopts manufactures undersized log recombination structure material and manufacture method thereof by finger or mitered, adopts the recombination structure material that undersized log can be processed into large gauge in this way.But the glue-line glue performance that this technique is formed when secondary gluing is unstable, has certain variability, and phenomenons such as ftractureing, come unglued may appear in some sheet material glue-lines; Other sheet materials are deposited, and may occur the problems such as bonding strength is low, and the physical mechanics property loss of energy is large.By analyzing, the main cause of above-mentioned phenomenon and problem is caused to be that spot gluing is bad.
According to previous research: forming good splicing prerequisite is that adhesive molecule can fully contact and effective wetting (Gu Jiyou, adhesive and coating, China Forestry Publishing House, 1999) with by splicing material (timber).Bamboo base fibrous composite is that (cold-press method briquetting pressure is about 60MPa at larger pressure for a kind of porous natural material timber or bamboo wood, pressure sintering briquetting pressure 4 ~ 6MPa) act on compacted under, the density of bamboo base fibrous composite is generally greater than 1.0g/cm
3when environment temperature and humidity change, the distortion such as easement, crosswise concaving, warpage can be there is, can produce time serious and jump the phenomenon such as silk and cracking (Yu Wenji, China's bamboo base fibrous composite industry development situation and trend analysis, timber industry, 2012,26 (1): 11-14), even if adopt sanding in process, be also difficult to obtain smooth cemented surface, secondly, in the manufacture process of bamboo base fibrous composite, more even in order to make adhesive distribute, usual employing dipping method, bamboo bundle and wood bundle are by after impregnation, and one deck adhesive has all been wrapped up on surface, after solidification, define the glue-line of the insoluble not molten densification of one deck, surface wettability declines, moreover, bamboo base fibrous composite intensity is high, hardness is large, be difficult to be compressed, but be subject to Traditional Thinking impact, when selecting bonded part, select rigidity approximately equal as far as possible, the material that thermal expansion is close with moisture expantion, usually can not consider to introduce the third material except adhesive, therefore, coarse surface, be difficult to the splicing face compressed and bad wetability easily produces in post forming process and comes unstuck, crack, air strike, the adhesive defects such as bondline thickness variation, particularly the bad problem of bamboo base fibrous composite spot gluing of high rigidity fails effectively to be solved all the time.
Summary of the invention
The object of the invention is to improve the deficiency in existing technology, laminate bamboo radical fiber composite material is provided, make its physical and mechanical property meet the requirement of structural wood performance.
For achieving the above object, the present invention takes following technical scheme:
The invention provides a kind of laminate bamboo radical fiber composite material, it comprises two pieces of front plate, two pieces of side panels, polymer and adhesives, it is characterized in that: it is square or rectangular hollow square column that two pieces of front plate and two pieces of side panels compose cross section mutually, and described front plate and side panel are bamboo base fibrous composite; Adhesive used is the agent of resorcinol gluing or aqueous solution acrylate resin; The weld of described mutual gummed two pieces of front plate and two pieces of side panels is an angle of 90 degrees or miter angle; Described hollow square column central hollow section is filled with the foam formed by polymer cure; Described polymer is the mixture of one or more compositions in polyvinyl chloride, polystyrene, polyurethane, polymethylacrylic acid acid amides, PEI and styrene acrylonitrile.
Arrange one deck veneer between described mutual gummed two pieces of front plate and side panel junction, the thickness of described veneer is 0.1-1.5mm; Adhesive layer is provided with between bamboo base fibrous composite and veneer.
Described front plate and side panel are formed through longitudinal finger by bamboo base fibrous composite, and the composition surface of Lengthwise joint is provided with adhesive layer, and adhesive used is the agent of resorcinol gluing or aqueous solution acrylate resin.Also include cardboard, the bamboo base fibrous composite of described Lengthwise joint is provided with a layer paperboard between the composition surface of Lengthwise joint, be provided with adhesive layer between bamboo base fibrous composite and cardboard, adhesive used is the agent of resorcinol gluing or aqueous solution acrylate resin.
Described spreading is finger spreading or mitered spreading.
The invention provides a kind of manufacture method of laminate bamboo radical fiber composite material, comprise following workshop section: (one) raw material prepares, prepared by (two) hollow square column, (three) are foam-filled, (four) post-processed:
(1) raw material prepares, and comprises bamboo base fibrous composite and prepares and adhesive allotment:
(1) bamboo base fibrous composite prepares, and by discongesting, drying, impregnation, drying, gummed, maintenance, cutting edge, saw cut and sanding workshop section, bamboo processing become specification bamboo base fibrous composite; Be impregnating phenolic resin at the adhesive that impregnation operation is used;
(2) certain thickness bamboo base fibrous composite is cut into 4 blocks of same widths bamboo base fibrous composite laths, the lath both sides of each bamboo base fibrous composite are mitered into the inclined-plane of miter angle or the right angle of an angle of 90 degrees, as two pieces of front plate and two pieces of side panels;
(3) adhesive allotment, by the host of the agent of resorcinol gluing or aqueous solution acrylate resin and curing agent according to 100: (10-20) ratio uniform mixes;
(2) hollow square column preparation
The agent of resorcinol gluing or aqueous solution acrylate resin are coated in equably on the inclined-plane of bamboo base fibrous composite both sides miter angle or the side of an angle of 90 degrees, described two pieces of front plate and two pieces of side panels being combined by for miter angle or an angle of 90 degrees at mutual glue joint, is square or rectangular hollow square column through composing cross section;
(3) foam-filled
Adopt gunite, one or more polymer uniform in polyvinyl chloride, polystyrene, polyurethane, polymethylacrylic acid acid amides, PEI and styrene acrylonitrile are ejected into hollow position in described hollow square column, through solidifying to form foam, obtain laminate bamboo radical fiber composite material slab;
(4) post-processed
By described laminate bamboo radical fiber composite material slab, cut and sanding workshop section through cutting edge, saw, be processed into laminate bamboo radical fiber composite material.
The manufacture method of described laminate bamboo radical fiber composite material, also comprises veneer at raw material beam house and prepares: by rotary-cut, drying and cutting edge workshop section, timber is processed into the veneer that thickness is 0.1-1.5mm; Glued joint if weld presses miter angle, veneer is cut into width for the bamboo base fibrous composite thickness 1.5 times described in step (2); Glued joint if weld presses an angle of 90 degrees, veneer is cut into width for the bamboo base fibrous composite thickness 1.1 times described in step (2);
The gummed that workshop section comprises veneer and bamboo base fibrous composite is prepared: the agent of resorcinol gluing or aqueous solution acrylate resin are coated in veneer upper and lower surface equably at hollow square column, by the board clip after described gluing between gummed two pieces of front plate and side panel connect mutually, making described two pieces of front plate and two pieces of side panels at mutual glue joint by being miter angle or an angle of 90 degrees combination, is square or rectangular hollow square column through composing cross section.
The manufacture method of described laminate bamboo radical fiber composite material, also comprise Lengthwise joint workshop section, the bamboo base fibrous composite two ends of certain length are adopted and is machined into finger face or miter, resorcinol gluing agent again after allotment is coated in finger face or miter or aqueous solution acrylate resin, make the bamboo base fibrous composite of Lengthwise joint through longitudinal finger or mitered.
The manufacture method of described laminate bamboo radical fiber composite material, in described Lengthwise joint workshop section, the bamboo base fibrous composite of described Lengthwise joint is provided with a layer paperboard between the composition surface of Lengthwise joint, be provided with adhesive layer between bamboo base fibrous composite and cardboard, adhesive used is the agent of resorcinol gluing or aqueous solution acrylate resin.
The manufacture method of described laminate bamboo radical fiber composite material, comprises longitudinal mitered workshop section, and in mitered operation, the thickness at mitered position and chamfer length ratio are 1: 10-1: 20.
Described laminate bamboo radical fiber composite material, comprises longitudinal finger workshop section, in finger operation, and box pin joint parameter: the long 8mm-45mm of tooth, tooth top width 0.5mm-20mm, tooth pitch 3mm-20mm, tooth refers to gradient 1/6-1/9.
Laminate bamboo radical fiber composite material provided by the invention, adopt hollow sandwich square column structure, reduce the density of material significantly, production technology is simple; Reduce costs; The ratio of strength to weight is large.
In addition, arrange between the bamboo base fibrous composite that, strength and stiffness high in hardness are large one deck compressible, can deformation, thickness 0.1-1.5mm veneer veneer, this splicing face structural design, take full advantage of the good wetability of veneer, permeability, gummed and compressible and can the characteristic such as deformation, utilize veneer veneer deformation behavior, effectively can fill up due to the gap that cemented surface injustice is formed between hardness is high, strength and stiffness are large bamboo base fibrous composite, thus add effective cemented surface; Utilize wetability and gummed property that veneer veneer is good, good cemented surface can be formed with bamboo base fibrous composite, improve glue performance; When secondary gluing, utilize permeability and the compression performance of veneer, under the effect of applied pressure, make veneer veneer compression compact, simultaneously, enable the agent of resorcinol gluing or aquosity polymer isocyanic ester gluing penetrate in veneer veneer fully, occur to glue together with veneer veneer and react, thus form the compressed wood with bamboo base fibrous composite similar nature.This splicing face structural design, make use of the characteristic of bamboo base fibrous composite and veneer veneer dexterously, the large gauge bamboo base fibrous composite bonding layer after gummed is made to meet the rigidity approximately equal of bonded part, the traditional classical splicing face gummed theory that thermal expansion is close with moisture expantion, solves again the adhesive defects such as bamboo base fibrous composite comes unstuck, crack, air strike, bondline thickness variation.
Laminate bamboo radical fiber composite material provided by the invention, when Lengthwise joint, is provided with a layer paperboard between the composition surface of Lengthwise joint, and cardboard is substantially identical with above-mentioned veneer veneer in the effect of weld, repeats no more here.Why when Lengthwise joint, select cardboard, reason is as follows: compared with veneer veneer, and except good wetability, permeability, gummed and compressible and can except the characteristic such as deformation, flexibility and the plasticity of cardboard are better.Be often referred to junction and miter is special-shaped curved, cardboard can design according to the shape of finger face and miter, thus the splicing face of making is more identical, can maximum restriction minimizing come unstuck, crack, air strike, the adhesive defect such as bondline thickness variation.
Laminate bamboo radical fiber composite material provided by the invention is in Lengthwise joint and restructuring recombination process, adopt Cold-setting adhesives i.e. two component isocyanate adhesive or resorcinol adhesive, according to the needs of target product in length and thickness direction restructuring compound, the large-sized specification requirement of structural wood can be met.
Laminate bamboo radical fiber composite material provided by the invention, in bamboo base fibrous composite manufacture process, selects impregnating phenolic resin or dipping pollopas, makes bamboo bundle or wood bundle reach even impregnation, thus obtains the bamboo base fibrous composite of stable performance.
Below in conjunction with the drawings and specific embodiments, the invention will be further described, not limitation of the present invention, and the equivalent replacement of every any this area of carrying out according to the disclosure of invention, all belongs to protection scope of the present invention.
Accompanying drawing explanation
Fig. 1 bamboo base fibrous composite finger face
Fig. 2 cardboard finger face
Fig. 3 bamboo base fibrous composite finger spreading
Bamboo base fibrous composite after Fig. 4 finger spreading
Fig. 5 veneer
Fig. 6 weld is an angle of 90 degrees laminate bamboo radical fiber composite material slab
Fig. 7 weld is an angle of 90 degrees laminate bamboo radical fiber composite material (profile)
Fig. 8 weld is an angle of 90 degrees laminate bamboo radical fiber composite material
Fig. 9 bamboo base fibrous composite oblique section
Figure 10 cardboard oblique section
Figure 11 bamboo base fibrous composite mitered spreading
Bamboo base fibrous composite after Figure 12 mitered spreading
Figure 13 weld is an angle of 90 degrees laminate bamboo radical fiber composite material slab
Figure 14 weld is miter angle laminate bamboo radical fiber composite material (profile)
Figure 15 weld is miter angle laminate bamboo radical fiber composite material
Detailed description of the invention
Embodiment 1: weld is an angle of 90 degrees laminate bamboo radical fiber composite material
The laminate bamboo radical fiber composite material of exemplary embodiments of the present invention, the foam (4) that it comprises the bamboo base fibrous composite (1) of longitudinal finger spreading, cardboard (2), veneer (3), adhesive (not marking in figure) and is formed by polymer cure, as shown in Figure 8, it is square or rectangular hollow square column that two pieces of front plate and two pieces of side panels compose cross section mutually, and front plate (11) and side panel (12) are bamboo base fibrous composite; Glue together and arrange one deck veneer (3) between two pieces of front plate and side panel junction, the thickness of veneer (3) is 1.2mm; Be provided with adhesive layer between bamboo base fibrous composite (1) and veneer (3), adhesive used is the agent of resorcinol gluing or aqueous solution acrylate resin; The weld of mutual gummed two pieces of front plate (11) and side panel (12) is an angle of 90 degrees; Described hollow square column central hollow section is filled with the foam (4) formed by polymer cure; Described polymer is polyvinyl chloride, polystyrene, polyurethane, polymethylacrylic acid acid amides, mixtures of one or more compositions in PEI and styrene acrylonitrile.
Laminate bamboo radical fiber composite material manufacture method typical case implementation step of the present invention is as follows:
1, by discongesting, drying, impregnation, drying, gummed, maintenance, cutting edge, saw cut and sanding workshop section, bamboo processing become (long × wide × thick) be: the bamboo base fibrous composite of 220cm × 20cm × 3.0cm; The adhesive used in impregnation operation is impregnating phenolic resin, in hot pressing process, adopts pressure sintering to produce bamboo base fibrous composite, belongs to prior art;
2, by above-mentioned bamboo base fibrous composite by tooth milling machine milling one-tenth finger joint teeth as shown in Figure 1, the long 25mm of tooth, tooth top width 10mm, tooth pitch 20mm, tooth refers to gradient 1/8.
3, take resorcinol gluing agent host and curing agent according to 100: 15 ratios, mixing, after stirring, form even host and the agent of curing agent uniform resorcinol gluing;
4, cardboard is processed into dentalation as shown in Figure 2, the long 25mm of tooth, tooth top width 10mm, tooth pitch 20mm, tooth refers to gradient 1/8.
5, the resorcinol gluing agent after described allotment is coated in finger face, glue-spread is 300g/m
2, or according to the area am before cardboard processing
2, adopt impregnation mode, enter in adhesive by cardboard finger, impregnation resin content is (300 × a) g; By the bamboo base fibrous composite finger-jointed plate after gluing according to assembly shown in Fig. 3, adopt two ends to overstock to centre the sheet material after assembly, finger place is combined closely, and the sheet material after finger spreading as shown in Figure 4.
6, by rotary-cut, drying, cutting edge workshop section, timber being processed into width is 33cm, and thickness is the veneer bar of 1.0mm, as shown in Figure 5;
7, the resorcinol gluing agent after allotment coated by veneer, glue-spread is 300g/m
2;
8, described two pieces of front plate and two pieces of side panels being pressed at mutual glue joint is an angle of 90 degrees combination, arrange one deck veneer between mutual gummed two pieces of front plate and side panel connect, being assembly by the earthwork, is square or rectangular hollow square column through composing cross section.
9, adopt gunite, by polyvinyl chloride, polystyrene, polyurethane, polymethylacrylic acid acid amides, be ejected into the hollow position in described hollow square column, through solidifying to form foam one or more polymer uniform in PEI and styrene acrylonitrile.
10, by laminate bamboo radical fiber composite material slab, cut and sanding workshop section through cutting edge, saw, be processed into laminate bamboo radical fiber composite material as shown in Figure 7.
Embodiment 2 weld is an angle of 90 degrees laminate bamboo radical fiber composite material
The laminate bamboo radical fiber composite material of exemplary embodiments of the present invention, it comprises the bamboo base fibrous composite (1) of longitudinal mitered spreading, cardboard (2), veneer (3), adhesive (not marking in figure) and foam (4), as shown in figure 14, it is square or rectangular hollow square column that two pieces of front plate and two pieces of side panels compose cross section mutually, and front plate (11) and side panel (12) are bamboo base fibrous composite; Glue together and arrange one deck veneer (3) between two pieces of front plate and side panel junction, the thickness of veneer (3) is 1.0mm; Be provided with adhesive layer between bamboo base fibrous composite (1) and veneer (3), adhesive used is aqueous solution acrylate resin; The weld of mutual gummed two pieces of front plate (11) and side panel (12) is miter angle; Described hollow square column central hollow section is filled with the foam (4) formed by polymer cure; Described polymer is polyvinyl chloride, polystyrene, polyurethane, polymethylacrylic acid acid amides, mixtures of one or more compositions in PEI and styrene acrylonitrile.
Laminate bamboo radical fiber composite material manufacture method typical case implementation step of the present invention is as follows:
1, by discongesting, drying, impregnation, drying, gummed, maintenance, cutting edge, saw cut and sanding workshop section, and timber being processed into (long × wide × thick) is: the bamboo base fibrous composite of 180cm × 140cm × 4cm; The adhesive used in impregnation operation is impregnating phenolic resin, in gluing technique, adopts cold-press method, belongs to prior art;
2, the both sides of above-mentioned bamboo base fibrous composite are mitered into the inclined-plane of miter angle;
3, above-mentioned bamboo base fibrous composite two ends are sawn into oblique section as shown in Figure 9, the thickness at mitered position and chamfer length ratio are 1: 10;
4, take according to 100: 18 ratios host and the curing agent that emulsion polymer isocyanate adhesive sticks agent, uniformly mix evenly;
5, by cardboard by being processed into ramp structure as shown in Figure 10, the thickness at mitered position and chamfer length ratio are 1: 10;
6, the emulsion polymer isocyanate adhesive after miter coats described allotment sticks agent, and glue-spread is 250g/m
2, or according to the area am of cardboard miter
2, adopt impregnation mode, immersed by cardboard in adhesive, impregnation resin content is (250 × a) g; By the bamboo base fibrous composite after gluing according to assembly shown in Figure 11, adopt two ends to overstock to centre the sheet material after assembly, mitered place is combined closely, and the sheet material after mitered spreading as shown in figure 12;
7, by rotary-cut, drying, cutting edge workshop section, timber being processed into width is 6cm, and thickness is the specification veneer of 0.8mm, as shown in Figure 5;
8, the emulsion polymer isocyanate adhesive after allotment coated by veneer sticks agent, and glue-spread is 250g/m
2;
9, described two pieces of front plate and two pieces of side panels being pressed at mutual glue joint is miter angle combination, and gummed two pieces of front plate and side panel arrange one deck veneer between connecting mutually, are assemblies by the earthwork, be square or rectangular hollow square column through composing cross section, as shown in figure 13;
10, adopt gunite, by polyvinyl chloride, polystyrene, polyurethane, polymethylacrylic acid acid amides, be ejected into the hollow position in described hollow square column, through solidifying to form foam one or more polymer uniform in PEI and styrene acrylonitrile;
11, by laminate bamboo radical fiber composite material slab, cut and sanding workshop section through cutting edge, saw, be processed into laminate bamboo radical fiber composite material as shown in Figure 14 and Figure 15.
Claims (10)
1. a manufacture method for laminate bamboo radical fiber composite material, comprises following workshop section: (one) raw material prepares, prepared by (two) hollow square column, (three) are foam-filled, (four) post-processed, it is characterized in that:
(1) raw material prepares, and comprises the preparation of bamboo base fibrous composite, adhesive allotment and veneer and prepares:
(1) bamboo base fibrous composite prepares, and by discongesting, drying, impregnation, drying, gummed, maintenance, cutting edge, saw cut and sanding workshop section, bamboo processing become specification bamboo base fibrous composite; Be impregnating phenolic resin at the adhesive that impregnation operation is used;
(2) certain thickness bamboo base fibrous composite is cut into 4 blocks of same widths bamboo base fibrous composite laths, the lath both sides of each bamboo base fibrous composite are mitered into the inclined-plane of miter angle or the right angle of an angle of 90 degrees, as two pieces of front plate and two pieces of side panels;
(3) adhesive allotment, by the host of the agent of resorcinol gluing or aqueous solution acrylate resin and curing agent according to 100: (10-20) ratio uniform mixes;
(4) veneer prepares: by rotary-cut, drying and cutting edge workshop section, timber is processed into the veneer that thickness is 0.1-1.5mm; Glued joint if weld presses miter angle, veneer is cut into width for the bamboo base fibrous composite thickness 1.5 times described in step (2); Glued joint if weld presses an angle of 90 degrees, veneer is cut into width for the bamboo base fibrous composite thickness 1.1 times described in step (2);
(2) hollow square column preparation
The agent of resorcinol gluing or aqueous solution acrylate resin are coated in equably on the inclined-plane of bamboo base fibrous composite both sides miter angle or the side of an angle of 90 degrees, the agent of resorcinol gluing or aqueous solution acrylate resin are coated in veneer upper and lower surface equably, veneer described after gluing is clipped in mutually between gummed two pieces of front plate and side panel connection, making described two pieces of front plate and two pieces of side panels at mutual glue joint by being miter angle or an angle of 90 degrees combination, is square or rectangular hollow square column through composing cross section;
(3) foam-filled
Adopt gunite, one or more polymer uniform in polyvinyl chloride, polystyrene, polyurethane, polymethylacrylic acid acid amides, PEI and styrene acrylonitrile are ejected into hollow position in described hollow square column, through solidifying to form foam, obtain laminate bamboo radical fiber composite material slab;
(4) post-processed
By described laminate bamboo radical fiber composite material slab, cut and sanding workshop section through cutting edge, saw, be processed into laminate bamboo radical fiber composite material.
2. the manufacture method of laminate bamboo radical fiber composite material according to claim 1, also comprise Lengthwise joint workshop section, it is characterized in that: the bamboo base fibrous composite two ends of certain length are adopted and is machined into finger face or miter, resorcinol gluing agent again after allotment is coated in finger face or miter or aqueous solution acrylate resin, make the bamboo base fibrous composite of Lengthwise joint through longitudinal finger or mitered.
3. the manufacture method of laminate bamboo radical fiber composite material according to claim 2, it is characterized in that: described bamboo base fibrous composite is provided with a layer paperboard between the composition surface of Lengthwise joint, be provided with adhesive layer between bamboo base fibrous composite and cardboard, adhesive used is the agent of resorcinol gluing or aqueous solution acrylate resin.
4. the manufacture method of laminate bamboo radical fiber composite material according to claim 2, described Lengthwise joint is longitudinal mitered, it is characterized in that: in mitered operation, and the thickness at mitered position and chamfer length ratio are 1: 10-1: 20.
5. the manufacture method of laminate bamboo radical fiber composite material according to claim 2, described Lengthwise joint is longitudinal finger, it is characterized in that: in finger operation, box pin joint parameter: the long 8mm-45mm of tooth, tooth top width 0.5mm-20mm, tooth pitch 3mm-20mm, tooth refers to gradient 1/6-1/9.
6. the laminate bamboo radical fiber composite material of a kind of manufacture method manufacture of laminate bamboo radical fiber composite material according to claim 1, it comprises two pieces of front plate, two pieces of side panels, polymer and adhesives, it is characterized in that: it is square or rectangular hollow square column that two pieces of front plate and two pieces of side panels compose cross section mutually, and described front plate and side panel are bamboo base fibrous composite; Adhesive used is the agent of resorcinol gluing or aqueous solution acrylate resin; The weld of described mutual gummed two pieces of front plate and two pieces of side panels is an angle of 90 degrees or miter angle; Described hollow square column central hollow section is filled with the foam formed by polymer cure; Described polymer is polyvinyl chloride, polystyrene, polyurethane, polymethylacrylic acid acid amides, mixtures of one or more compositions in PEI and styrene acrylonitrile.
7. laminate bamboo radical fiber composite material according to claim 6, it is characterized in that: also include veneer, arrange one deck veneer between described mutual gummed two pieces of front plate and side panel junction, the thickness of described veneer is 0.1-1.5mm; Adhesive layer is provided with between bamboo base fibrous composite and veneer.
8. laminate bamboo radical fiber composite material according to claim 6, it is characterized in that: described front plate and side panel are formed through Lengthwise joint by bamboo base fibrous composite, the composition surface of Lengthwise joint is provided with adhesive layer, and adhesive used is the agent of resorcinol gluing or aqueous solution acrylate resin.
9. a kind of laminate bamboo radical fiber composite material according to claim 8, it is characterized in that: also include cardboard, the bamboo base fibrous composite of described Lengthwise joint is provided with a layer paperboard between the composition surface of Lengthwise joint, be provided with adhesive layer between bamboo base fibrous composite and cardboard, adhesive used is the agent of resorcinol gluing or aqueous solution acrylate resin.
10. laminate bamboo radical fiber composite material according to claim 8, is characterized in that: described spreading is finger spreading or mitered spreading.
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| CN104802240A (en) * | 2014-01-26 | 2015-07-29 | 廊坊华日家具股份有限公司 | Hollow beveled-jointed recombined bamboo furniture material and manufacturing method thereof |
| CN104802239A (en) * | 2014-01-26 | 2015-07-29 | 廊坊华日家具股份有限公司 | Hollow finger-jointed recombined bamboo furniture material and manufacturing method thereof |
| CN106625960B (en) * | 2016-12-23 | 2019-06-14 | 江苏农林职业技术学院 | A kind of compound square column of bamboo and wood and preparation method thereof |
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| CN101462286A (en) * | 2009-01-08 | 2009-06-24 | 赵丽娟 | Fire-proof board with solid wood veneer layer and solid wood veneer attaching technique thereof |
| CN101524858A (en) * | 2008-12-24 | 2009-09-09 | 中国林业科学研究院木材工业研究所 | Super-thick bamboo-wood composite board and producing method thereof |
| CN201856278U (en) * | 2010-08-03 | 2011-06-08 | 中国林业科学研究院 | Dislocation finger joint recombined structural wood |
| CN202264271U (en) * | 2011-08-22 | 2012-06-06 | 国家林业局竹子研究开发中心 | Hollow reconsolidated bamboo column |
| CN102658569A (en) * | 2012-05-05 | 2012-09-12 | 福建省大田县华兴木业有限公司 | Bamboo composite plywood structure for bottom plate of container and production method thereof as well as product |
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| JPS55164141A (en) * | 1979-06-09 | 1980-12-20 | Masao Takahashi | Veneer for use in plywood, dress board and the like |
| JPH03239501A (en) * | 1990-02-15 | 1991-10-25 | Yoshihisa Koyama | Polygonal hollow shaft and production thereof, production of plural-layer shaft member, grip part of polygonal shaft and shaft, node member for circular shaft and hollow shaft and joint of shaft |
| JP5451212B2 (en) * | 2009-05-01 | 2014-03-26 | 由美 石野 | Bamboo board |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10030721A1 (en) * | 2000-06-23 | 2002-01-10 | Adolf Muenchinger Holz Imp Exp | Square ruler with at least two solid wood covering layers, core element of veneer plywood, and edge elements. |
| CN1743598A (en) * | 2004-09-03 | 2006-03-08 | 天津市朗明通信科技有限公司 | Bamboo-made wallboard |
| CN101214664A (en) * | 2007-12-28 | 2008-07-09 | 国际竹藤网络中心 | Method of preparing bamboo wood complementary composite material |
| CN101524858A (en) * | 2008-12-24 | 2009-09-09 | 中国林业科学研究院木材工业研究所 | Super-thick bamboo-wood composite board and producing method thereof |
| CN101462286A (en) * | 2009-01-08 | 2009-06-24 | 赵丽娟 | Fire-proof board with solid wood veneer layer and solid wood veneer attaching technique thereof |
| CN201856278U (en) * | 2010-08-03 | 2011-06-08 | 中国林业科学研究院 | Dislocation finger joint recombined structural wood |
| CN202264271U (en) * | 2011-08-22 | 2012-06-06 | 国家林业局竹子研究开发中心 | Hollow reconsolidated bamboo column |
| CN102658569A (en) * | 2012-05-05 | 2012-09-12 | 福建省大田县华兴木业有限公司 | Bamboo composite plywood structure for bottom plate of container and production method thereof as well as product |
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| Publication number | Publication date |
|---|---|
| CN103231423A (en) | 2013-08-07 |
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