CN108673972A - A kind of combined wood-bamboo material of cross laminate and preparation method thereof - Google Patents
A kind of combined wood-bamboo material of cross laminate and preparation method thereof Download PDFInfo
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- CN108673972A CN108673972A CN201810293939.XA CN201810293939A CN108673972A CN 108673972 A CN108673972 A CN 108673972A CN 201810293939 A CN201810293939 A CN 201810293939A CN 108673972 A CN108673972 A CN 108673972A
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- China
- Prior art keywords
- bamboo
- wood
- laminate
- log
- combined
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/712—Weather resistant
Abstract
The invention discloses combined wood-bamboo material of a kind of cross laminate and preparation method thereof, which includes at least two layers superimposed bamboo and wood laminate and the grid composite layer between several bamboo and wood laminates, and the fiber alignment of the adjacent bamboo and wood laminate is in 90 °；Preparation method be by least two layers of bamboo and wood laminate it is superimposed after, grid composite layer is added in several interlayers, can be prepared by the combined wood-bamboo material after glued, cold pressing curing process.The remarkable advantage of the present invention is that not only mechanics and weather resistance are good for the combined wood-bamboo material, and the vertical and horizontal strength and stiffness of component are reinforced.
Description
Technical field
The invention belongs to the combined wood-bamboo materials and its preparation side of field of compound material more particularly to a kind of cross laminate
Method.
Background technology
With forest resource decrease in world wide, people begin one's study using bamboo wood and artificial forest wood as primary raw material
Bamboo-wood composite material works.Wood, bamboo are compound can reasonably to play bamboo wood and the respective good characteristic of timber, and wood is both saved in acquisition
Aptitude source, and ensure the double effects of the intensity and presentation quality of material.Wood bamboo composite material is compared with pure artificial bamboo board, more
Designability with structure and performance, in terms of the utilizing status of bamboo wood, the former also has more superiority than the latter.Therefore, as
Structural timber, it is wooden, bamboo aggregate material to have a extensive future, also add for the industrialized utilization of artificial forest fast growing wood and bamboo wood and deeply
Work opens new approach, has widened application range.And the bamboo processing of the existing bamboo and wood composite material for realizing industrialized production
Process, be all by the bamboo cane of bamboo processing certain specification, thin bamboo strips used for weaving, be rolled into bamboo fiber bundle, these methods be lost bamboo
The 50% of material raw material, the also heavy losses former mechanical characteristic of bamboo wood, and manufacturing procedure is more, equipment investment is big, expenses of labour consumption
With big, utilization rate of raw materials is low, high energy consumption, high processing costs, preparation material mechanical performance cannot play.
Timber and bamboo wood have fairly good mechanical property, and specific strength is higher than common iron, in process of manufacture
Carbon emission amount is also well below Reinforced Concrete Materials, and therefore, wood bamboo material has the good condition as building structure proximate matter.If
Developed rational structural shape, it will be able to the purposes for widening wood bamboo material, to open up a kind of effectively way using wood bamboo resource
Diameter.Log raw bamboo belongs to anisotropic member, and material is uneven, therefore can be processed as by a series of processing methods
It may be used as the material members of building structure proximate matter.
Invention content
Goal of the invention：The first object of the present invention, which is to provide one kind, having high intensity and rigidity, and mechanics and weather resistance
Excellent combined wood-bamboo material；
The second object of the present invention is to provide the preparation method of the combined wood-bamboo material.
Technical solution：The combined wood-bamboo material of cross laminate of the present invention, including at least two layers superimposed bamboo and wood laminate and
The fiber alignment of grid composite layer between several bamboo and wood laminates, the adjacent bamboo and wood laminate is in 90 °.
The combined wood-bamboo material of the present invention, vertically and horizontally bidirectional stress, not only mechanics and weather resistance are good, have more high-strength
Degree and rigidity, and the problems such as improve the uniform big creep of bamboo wood anisotropy, unbalance stress.Meanwhile it is compound using several grids
Layer, the combination of grid composite layer and bamboo and wood laminate further enhance the stress in component transverse and longitudinal direction, and it is double to effectively improve structure
To strength and stiffness.Preferably, grid composite layer can be FRP grid ribs, bamboo and woods fiber grid or reinforced mesh.
Furtherly, the one-way fiber arrangement of its single layer bamboo and wood laminate of combined wood-bamboo material of the invention.Preferably, bamboo and wood
Laminate at least may include one kind in raw bamboo recombinant material, raw bamboo integrated timber, log or log LVL.
It further says, the laminate thickness of raw bamboo recombinant material or raw bamboo integrated timber that the present invention uses can be 8~40mm.It is former
The thickness of wood or log LVL are 10~80mm, further preferably can be 10~40mm.
The method that the present invention prepares combined wood-bamboo material, includes the following steps：At least two layers of bamboo and wood laminate is superimposed
Afterwards, grid composite layer is added in several interlayers, can be prepared by the combined wood-bamboo material after glued, cold pressing curing process.
Furtherly, the cold pressing curing process used when preparation is the pressurize 12~for 24 hours under the conditions of 0.5~1.5MPa.
Advantageous effect：Compared with prior art, remarkable advantage of the invention is：First, the present invention is interlocked using transverse and longitudinal
Combined wood-bamboo material, bidirectional stress, not only mechanics and weather resistance are good, have high intensity and rigidity, and improve bamboo wood respectively to
The problems such as anisotropic, unbalance stress uniform big creep；Secondly, add using grid is compound in a certain layer or certain several layers of bamboo and wood laminate
Gu and making it reach between bamboo and wood laminate by cold pressing solidification and bonding and be engaged well, compare and answered with outer tire layer grid ribs
For condensation material, interface performance is more preferable, is more advantageous to performance material property, using grid composite layer and unidirectional composite material phase
Than realizing bidirectional stress, reinforcing the vertical and horizontal strength and stiffness of component, and to the reinforcement of component strength and rigidity
Control；Again, bamboo and wood laminate by it is curved during, the grid composite layer of tensile region can effectively improve the carrying of plate tension side
Power, and the grid composite layer of compressive region can limit the bulging of compressive region, promote the performance of compressive region；In addition, using bamboo and wood fibre
It ties up grid to reinforce, can realize the consistency between wood bamboo laminate, and then further increase the whole mechanics of composite wood material
Performance.
Description of the drawings
Fig. 1 is the structural schematic diagram of the combined wood-bamboo material of the cross laminate of the present invention.
Specific implementation mode
Technical scheme of the present invention is described in further detail with reference to the accompanying drawings and embodiments.
Embodiment 1
It is illustrated in fig. 1 shown below, the combined wood-bamboo material of cross laminate of the present invention, including at least two layers superimposed bamboo and wood laminate
1, which is raw bamboo recombinant material, and the fiber alignment of thickness 20mm, adjacent bamboo and wood laminate 1 are in 90 °, bamboo and wood laminate 1
The one-way fiber arrangement of itself.Grid composite layer 2 is equipped between several bamboo and wood laminates 1, which is FRP grid ribs.
Concrete structure can be：1, raw bamboo recombinant material-raw bamboo recombinant material-raw bamboo recombinant material-FRP grid ribs-raw bamboo recombination
Grid composite layer 2 is only arranged in material ... raw bamboo recombinant material-raw bamboo recombinant material between one layer of adjacent bamboo and wood laminate 1.
2, raw bamboo recombinant material-FRP grid ribs-raw bamboo recombinant material-FRP grid ribs-raw bamboo recombinant material-FRP grid ribs-raw bamboo
The knot of grid composite layer 2 is equipped between the adjacent bamboo and wood laminate 1 of recombinant material ... raw bamboo recombinant material-FRP grid ribs-raw bamboo recombinant material
Structure.
3, raw bamboo recombinant material-FRP grid ribs-raw bamboo recombinant material-raw bamboo recombinant material-raw bamboo recombinant material-raw bamboo recombinant material-
Between only several bamboo and wood laminates 1 of FRP grid ribs-raw bamboo recombinant material ... raw bamboo recombinant material-FRP grid ribs-raw bamboo recombinant material
Structure equipped with grid composite layer 2, this grid composite layer 2 can be concentrated between a certain section of bamboo and wood laminate 1 or dispersion is set to
Between bamboo and wood laminate 1.
Above-mentioned bamboo and wood laminate 1 be also can be one kind in raw bamboo integrated timber, log or log LVL.
Preparation method includes the following steps：According to above structure by raw bamboo recombinant material transverse and longitudinal it is superimposed after, be added FRP grids
Muscle is glued, pressurize 18h under the conditions of 1MPa, you can the combined wood-bamboo material is made.
Embodiment 2
The combined wood-bamboo material of cross laminate of the present invention, including at least two layers superimposed bamboo and wood laminate 1, the bamboo and wood laminate
1 is raw bamboo recombinant material and log, and the laminate thickness of raw bamboo recombinant material is 40mm, and the thickness of log is 40mm, adjacent bamboo and wood laminate
Fiber alignment be in 90 °, the one-way fiber of bamboo and wood laminate itself arranges.Grid composite layer 2 is equipped between several bamboo and wood laminates, it should
Grid composite layer 2 is bamboo and woods fiber grid, and the set-up mode of the bamboo and woods fiber grid is substantially the same manner as Example 1, can be only
It is equipped with bamboo and woods fiber grid between structure, adjacent bamboo and wood laminate 1 between one adjacent bamboo and wood laminate 1 equipped with bamboo and woods fiber grid
Bamboo and woods fiber network is equipped between structure or several bamboo and wood laminates 1, this bamboo and woods fiber grid can be concentrated set on a certain section
Between bamboo and wood laminate 1 or dispersion is set between bamboo and wood laminate 1.
Preparation method includes the following steps：According to above structure by raw bamboo recombinant material and log transverse and longitudinal it is superimposed after, be added
Bamboo and woods fiber grid is glued, pressurize 12h under the conditions of 1.5MPa, you can the combined wood-bamboo material is made.
Embodiment 3
The combined wood-bamboo material of cross laminate of the present invention, including at least two layers superimposed bamboo and wood laminate 1, the bamboo and wood laminate
1 is composed of raw bamboo recombinant material, raw bamboo integrated timber, log and log LVL, and the laminate thickness of raw bamboo recombinant material is 8mm, log
Thickness be 10mm, the fiber alignment of adjacent bamboo and wood laminate 1 is in 90 °, and the one-way fiber of bamboo and wood laminate 1 itself arranges, several
Grid composite layer 2 is equipped between bamboo and wood laminate 1, which is reinforced mesh.
Concrete structure can be：1, raw bamboo recombinant material-raw bamboo integrated timber-log-log LVL ... raw bamboos recombinant material-raw bamboo collection
- log-log LVL raw bamboo recombinant materials ... raw bamboo recombinant material-reinforced mesh-raw bamboo of becoming a useful person integrated timber-bamboo and woods fiber grid-original
Wood-log LVL ... raw bamboos recombinant material-raw bamboo integrated timber-log-log LVL ... only in 1 two layers adjacent of bamboo and wood laminate 1
Between reinforced mesh is set.
2, raw bamboo recombinant material-reinforced mesh-raw bamboo integrated timber-reinforced mesh-log-reinforced mesh-log LVL ... raw bamboos
Between the adjacent bamboo and wood laminate 1 of recombinant material-reinforced mesh-raw bamboo integrated timber-reinforced mesh-log-reinforced mesh-log LVL
Structure equipped with reinforced mesh.
3, raw bamboo recombinant material-raw bamboo integrated timber-reinforced mesh-log-reinforced mesh-log LVL ... raw bamboos recombinant material-steel
It is equipped with reinforced mesh between only several bamboo and wood laminates 1 of muscle mesh sheet-raw bamboo integrated timber-log-reinforced mesh-log LVL, this
Grid composite layer can be concentrated between a certain section of bamboo and wood laminate 1 or dispersion is set between bamboo and wood laminate 1.
Preparation method includes the following steps：According to above structure by raw bamboo recombinant material, raw bamboo integrated timber, log and log
After LVL transverse and longitudinals are superimposed, it is glued to be added reinforced mesh, and pressurize is for 24 hours under the conditions of 0.5MPa, you can the wood composite bamboo wood is made
Material.
The laminate thickness of the embodiment Central Plains bamboo recombined material or raw bamboo integrated timber can also be 8~40mm, log or log LVL
Thickness can also be 10~80mm.
There is above-described embodiment it is found that 1 transverse and longitudinal of bamboo and wood laminate is staggered in conjunction with grid composite layer 2 through the invention, and
Cured by being cold-pressed, so that the weather resistance of the composite material prepared is good, while vertical and horizontal strength and stiffness are equal
It improves.
Claims (9)
1. a kind of combined wood-bamboo material of cross laminate, it is characterised in that：The combined wood-bamboo material includes superimposed at least two layers
Bamboo and wood laminate (1) and the grid composite layer (2) between several bamboo and wood laminates, the fiber alignment of the adjacent bamboo and wood laminate be in
90°。
2. the combined wood-bamboo material of cross laminate according to claim 1, it is characterised in that：The grid composite layer (2)
For FRP grid ribs, bamboo and woods fiber grid or reinforced mesh.
3. the combined wood-bamboo material of cross laminate according to claim 1, it is characterised in that：The single layer bamboo and wood laminate
(1) one-way fiber arrangement.
4. the combined wood-bamboo material of cross laminate according to claim 3, it is characterised in that：The bamboo and wood laminate (1) is extremely
Include one kind in raw bamboo recombinant material, raw bamboo integrated timber, log or log LVL less.
5. the combined wood-bamboo material of cross laminate according to claim 4, it is characterised in that：The raw bamboo recombinant material or original
The laminate thickness of bamboo wood is 8~40mm.
6. the combined wood-bamboo material of cross laminate according to claim 4, it is characterised in that：The log or log LVL
Thickness be 10~80mm.
7. the combined wood-bamboo material of cross laminate according to claim 6, it is characterised in that：The log or log LVL
Thickness be 10~40mm.
8. a kind of method preparing combined wood-bamboo material described in claim 1, it is characterised in that include the following steps：It will at least
After two layers of bamboo and wood laminate (1) is superimposed, grid composite layer (2) is added in several interlayers, after glued, cold pressing curing process i.e.
The combined wood-bamboo material can be made.
9. the method according to claim 8 for preparing combined wood-bamboo material, it is characterised in that：The cold pressing curing process is
Under the conditions of 0.5~1.5MPa, pressurize 12~for 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293939.XA CN108673972A (en) | 2018-04-04 | 2018-04-04 | A kind of combined wood-bamboo material of cross laminate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293939.XA CN108673972A (en) | 2018-04-04 | 2018-04-04 | A kind of combined wood-bamboo material of cross laminate and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108673972A true CN108673972A (en) | 2018-10-19 |
Family
ID=63800568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810293939.XA Pending CN108673972A (en) | 2018-04-04 | 2018-04-04 | A kind of combined wood-bamboo material of cross laminate and preparation method thereof |
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| CN (1) | CN108673972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648658A (en) * | 2019-01-16 | 2019-04-19 | 西安建筑科技大学 | A kind of compound orthogonal glued board of bamboo and wood |
| CN111409152A (en) * | 2020-04-29 | 2020-07-14 | 西安工程大学 | Orthogonal glued bamboo material for building structure and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219718A (en) * | 2007-01-12 | 2008-07-16 | 郭泽和 | High-strength case plank of transfer case |
| CN205219331U (en) * | 2015-11-25 | 2016-05-11 | 福建茗匠竹艺科技有限公司 | Compound bamboo panel |
| CN206220475U (en) * | 2016-11-18 | 2017-06-06 | 南京林业大学 | A kind of fibre reinforced bamboo and wood complex architectural template |
-
2018
- 2018-04-04 CN CN201810293939.XA patent/CN108673972A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219718A (en) * | 2007-01-12 | 2008-07-16 | 郭泽和 | High-strength case plank of transfer case |
| CN205219331U (en) * | 2015-11-25 | 2016-05-11 | 福建茗匠竹艺科技有限公司 | Compound bamboo panel |
| CN206220475U (en) * | 2016-11-18 | 2017-06-06 | 南京林业大学 | A kind of fibre reinforced bamboo and wood complex architectural template |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648658A (en) * | 2019-01-16 | 2019-04-19 | 西安建筑科技大学 | A kind of compound orthogonal glued board of bamboo and wood |
| CN111409152A (en) * | 2020-04-29 | 2020-07-14 | 西安工程大学 | Orthogonal glued bamboo material for building structure and preparation method thereof |
| CN111409152B (en) * | 2020-04-29 | 2024-01-12 | 西安工程大学 | Orthogonal glued bamboo for building structure and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181019 |
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