CN107471343B - The construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate - Google Patents

The construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate Download PDF

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Publication number
CN107471343B
CN107471343B CN201710804831.8A CN201710804831A CN107471343B CN 107471343 B CN107471343 B CN 107471343B CN 201710804831 A CN201710804831 A CN 201710804831A CN 107471343 B CN107471343 B CN 107471343B
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China
Prior art keywords
plate
steel plate
carbon cloth
quick growth
poplar wood
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CN107471343A (en
Inventor
王玉镯
李雪玲
黄颖
赵秀云
曹加林
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Shandong Xiehe University
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Shandong Xiehe University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D5/00Other working of veneer or plywood specially adapted to veneer or plywood
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D1/00Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27GACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00Applying adhesives or glue to surfaces of wood to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/0085Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/10Next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/02Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04Layered 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
    • B32B9/042Layered 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 of wood
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/106Carbon fibres, e.g. graphite fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546Flexural strength; Flexion stiffness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/732Dimensional properties
    • B32B2307/734Dimensional stability

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

The invention belongs to quick growth poplar wood technical field of modification more particularly to a kind of construction technologies of the modified quick growth poplar wood of carbon fiber encased steel plate.Including following effective procedure: a, selection;B, it cuts;C, depths is managed;D, it dries;E, heat modification;F, it dries;G, it cuts;H, configuration structure glue;I, it impregnates;J, it combines;K, it wraps up;L, it conserves.Compared with prior art, the advantages and positive effects of the present invention are, the present invention provides a kind of construction technologies of the modified quick growth poplar wood of carbon fiber encased steel plate, processing is modified to the methods of quick growth poplar wood processing, bonding, maintenance, precompressed, post-processing by carbon fiber, steel plate, structure glue and a series of construction technologies, and then the mechanical properties such as compression strength, elasticity modulus, deformation rate, anti-seismic performance for changing quick growth poplar wood, it is allowed to meet the requirement of building structural element (column, beam, plate, wall).

Description

The construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate
Technical field
The invention belongs to quick growth poplar wood technical field of modification, are related to outside quick growth poplar wood modification more particularly to a kind of carbon fiber The construction technology of the modified quick growth poplar wood of steel plated.
Background technique
Timber and wood materials are not only widely used in daily life as the important resources of production in social and economic construction In every field, be also widely used for the industrial circles such as traffic, building and space flight.With in world wide, the forest reserves are increasingly Shortage, especially precious timber quantity increasingly fall sharply, and a large amount of fast growing tree is widely cultivated in recent years.Fast growing tree has The advantages that material time is short, yield is high, but since its growth year is shorter, such as: general artificial quick growth poplar wood become a useful person the time be 5~ 6 years, thus most of fast growing tree have low density, wooden soft, physical mechanics intensity difference, moisture content high and be unevenly distributed and It is also easy to produce the defects of dry-shrinkage deformed, to limit the use scope of fast growing tree kind, usually artificial fast-growing woods is mostly used next life Production paper pulp, the low economic value added product such as throwaway chopsticks, and in high added value manufacture field using less.
As country promulgates that relevant policies carry out green building, fabricated construction energetically, and hereof it should be particularly mentioned that closing In the timber structure prefabricated construction the problem of.But nowadays the development of timber structure is because natural timber is forbidden felling and being limited System.Most of artificial material is but because its poor application range of mechanical property is restricted.Quick growth poplar wood itself has that texture is straight, Yi Jia The features such as work, growth are fastly, environmental suitability is strong, and there are the advantages such as environmental protection, beauty, and there is extensive planting matrix in China Plinth.But quick growth poplar wood is since its mechanical property is lower, the features such as corrosion resistance difference and big unstability, never applies In building structure.Currently, how quick growth poplar wood to be applied in building structural element by the way that carbon fiber encased steel plate is modified, open up The research of its wide application range is less.
Summary of the invention
The present invention for it is above-mentioned by quick growth poplar wood be applied to building structural element in the presence of the technical issues of, propose one Kind designs high, the resistance to modified quick growth poplar wood of rotten carbon fiber encased steel plate of reasonable, simple process, easy to process and physical strength Construction technology.
In order to achieve the above object, the technical solution adopted by the present invention is that the present invention provides a kind of carbon fiber encased steel plate The construction technology of modified quick growth poplar wood, including following effective procedure:
A, selection: logical straight, the tree-walk 20cm of quick growth poplar wood trunk or so log is chosen, and is put in shady place placement;
B, it cuts: the quick growth poplar wood chosen is cut into the plate with a thickness of 10mm, reject the plate for being unsatisfactory for requiring, place Managing plate length and width is size needed for component;
C, depths is managed: the plate handled well being carried out deep processing processing, does groove processing in plate surface;
D, dry: by deep processing, treated that plate is put in that shady place is dried 3-5 days or using dryer at 65 DEG C -85 DEG C Effect is lower to dry 8h or more;
E, heat modification: the plate after will be processed is put in nitrogen chamber, and nitrogen at elevated temperature room temperature is to 180 DEG C~260 DEG C Heat modification processing is done to plate;
F, it dries: by heat modification treated plate drying box more than 105 DEG C of drying for 24 hours, carrying out water ratio test Test controls moisture content between 9~15%, spare;
G, cut: according to the size of plate upper groove cut steel plate of corresponding size and for wrap up be superimposed after plate Carbon cloth, it is spare;
H, configuration structure glue: the structure glue includes carbon cloth glue for being bonded carbon cloth and for being bonded steel plate Steel plate glue, the carbon cloth glue include two groups of important components of A, B, wherein A group is modified epoxy, and B group is that ethylenediamine is modified Two component of A, B is uniformly mixed by the intermixture of phenolic aldehyde ammonia curing agent and aromatic amine curing agent according to mass ratio A:B=3:1, standby With;The steel plate glue includes two groups of important components of C, B, wherein C group is acrylic modified epoxy resin, according to mass ratio C:B= Two component of C, B is uniformly mixed by 3:1, spare;
I, it impregnates: the plate after drying is put into vacuum impregnation tank, configured carbon cloth glue is added, control Vaccum Permeating Stain tank is 1MPa, controls 75 DEG C of temperature, impregnates 3h;
J, it combines: the plate after dipping being taken out, the carbon cloth glue of plate surface is quickly scraped off, will be cut in g step Steel plate be quickly coated in the groove of plate by steel plate glue, and separately take one block of plate, make its corresponding groove covering On the steel plate, groove and steel plate between two plates is made to cooperatively form an entirety, and so on, combine required thickness Degree;
K, it wraps up: the carbon cloth that g step is cut being wrapped in the plate that j step combines using carbon cloth glue and is glued Knot, will guarantee in bonding process smooth, straight, paste second layer carbon cloth after the construction of first layer carbon cloth, when stickup, first In the external coating carbon cloth glue of first layer carbon cloth, second layer carbon cloth then is pasted by preceding method, to ensure carbon cloth The plumpness of glue;
L, it conserves: the plate wrapped is compressed with mold, control temperature is conserved at 40~50 DEG C, and curing time is 1~2 week time to get arrive required finished product.
Preferably, the groove is arranged along the longitudinal direction interval of plate in the step c.
Preferably, the groove is arranged along the short side direction interleaved of plate in the step c.
Preferably, three column are at least arranged along plate short side direction for the groove in the step c.
Preferably, the plate after processing first is put in nitrogen chamber, then nitrogen at elevated temperature in the step e Room temperature starts to inject nitrogen to 140 DEG C, controls temperature at 180 DEG C~260 DEG C, keeps the temperature 2h, is then shut off nitrogen injection, closes Temperature control is closed to take out plate after placement makes nitrogen room temperature be down to 40 DEG C.
Preferably, phenolic aldehyde ammonia curing agent and aromatic amine curing agent that the B component ethylenediamine is modified are according to mass ratio 1:2 ~5 ratio mixing.
Preferably, plate is put into vacuum impregnation tank first in the i step, then with vacuum pump by vacuum Impregnating autoclave is pumped into -0.2MPa vacuum, then turns on imported valve, and carbon cloth glue is pressed into vacuum impregnation tank using atmospheric pressure It is interior, after carbon cloth glue submerges plate, vacuum impregnation tank is transferred to 1MPa, controls 75 DEG C of temperature, impregnates 3h.
Compared with prior art, the advantages and positive effects of the present invention are:
The present invention provides a kind of construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate, by carbon fiber, steel plate, Structure glue and a series of construction technologies are modified place to the methods of quick growth poplar wood processing, bonding, maintenance, precompressed, post-processing Reason, and then the mechanical properties such as compression strength, elasticity modulus, deformation rate, anti-seismic performance for changing quick growth poplar wood, are allowed to meet building The requirement of structural elements (column, beam, plate, wall).
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Attached drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for ability For the those of ordinary skill of domain, without any creative labor, it can also be obtained according to these attached drawings others Attached drawing.
Fig. 1 is the structure of finished product obtained by the construction technology for the modified quick growth poplar wood of carbon fiber encased steel plate that embodiment 1 provides Schematic diagram;
Fig. 2 is the structural schematic diagram for the single layer cottonwood plank stuff that embodiment 1 provides;
Fig. 3 is the structural schematic diagram for the single layer cottonwood plank stuff that embodiment 2 provides;
In above each figure, 1, carbon cloth;2, plate;21, groove.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawings and examples The present invention will be further described.It should be noted that in the absence of conflict, in embodiments herein and embodiment Feature can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other modes described herein are different from, therefore, the present invention is not limited to the specific of specification is described below The limitation of embodiment.
Embodiment 1, as shown in Figure 1 and Figure 2, the present embodiment provides the construction works of the modified quick growth poplar wood of carbon fiber encased steel plate Skill
Firstly, selection, it is contemplated that modified quick growth poplar wood provided by the present embodiment be for building in, therefore in the present embodiment In, the selection of material also functions to vital effect to the intensity of later period finished product, firstly, choose quick growth poplar wood trunk it is logical straight, Tree-walk 20cm or so log, and it is put in shady place placement, it selects trunk to lead to straight poplar and mainly considers that trunk leads to straight poplar It wants more convenient in processing to wood, and tree-walk 20cm or so log is selected to be mainly in view of needed for the present embodiment construction, and places Shady place setting, primarily to avoiding being exposed to the sun, causes the cracking of poplar, influences its intensity.
Then, the quick growth poplar wood chosen is cut into the plate 2 with a thickness of 10mm, rejects the plate for being unsatisfactory for requiring, place Managing plate length and width is size needed for component, and in the present embodiment, the length 2400mm needed to configure, width is the plate of 140mm, If the length and width of plate is unable to reach corresponding size, the size of required plate can be obtained by way of bonding, glued Become the existing common means of fast-growing plate, therefore in the present embodiment, without detailed description.By the plate 2 handled well into Row deep processing processing is done groove 21 on 2 surface of plate and is arranged, and in the present embodiment, groove 21 is set along 2 longitudinal direction interval of plate It sets, i.e., the structure setting of timber, groove, timber is formed on plate, in order to further increase the intensity after finished product, in this reality It applies in example, groove 21 is staggered along 2 short side direction of plate, i.e., forms criss-cross layout in 2 upper groove 21 of plate, each All wrapped up by plate around groove 21, the groove between adjacent two plates be it is symmetrically arranged, in this way in groove 21 Steel plate is placed, the steel plate in groove 21 just made forms the effect of key, increases the intensity of finished product.
In order to further increase the intensity of finished product, three column are at least arranged along 2 short side direction of plate in groove 21, such to set It sets, is capable of increasing staggeredly area of the groove 21 on plate 2, and then increase integral strength, in the present embodiment, is provided with three altogether Column.
The intensity of plate in order to further increase removes the moisture of plate, and by deep processing, treated that plate is put in cool place Place dries 3~5 days or dries 8h or more under 65 DEG C~85 DEG C effects using dryer, carries out except water process, the mesh done so , so that moisture is slowly evaporated from plate, moisture is avoided quickly to be lost, causes the cracking of plate.
Then, the plate after will be processed is put in nitrogen chamber, and nitrogen at elevated temperature room temperature is to 180 DEG C~260 DEG C to plate Material does heat modification processing, and content of cellulose is about the 40%~50% of lignocellulose raw material in poplar, and cellulose is D-Glucose The chain-like macromolecule compound that β-Isosorbide-5-Nitrae glycosidic bond links up, the degree of polymerization of cellulose are wooden from hundreds to thousands even 10,000 or more Content of cellulose and property in material cell wall are the important factor in order of Wood mechanical property, and hemicellulose is the same as cellulose one Sample is polysaccharide, but the not uniform glycan of hemicellulose, the composition of a variety of complex plycans, and general hemicellulose gathers Right is 200 to 300, and the arrangement of hemicellulose is more loose, can form crystal region unit, have in hemicellulose structure more Hydrophilic group key (predominantly hydroxyl and carbonyl), therefore there is biggish shadow to the bulking performance equidimension stability of wood cell wall It rings, hemicellulose is as the adhesive in wood components, amorphous in usual hemicellulose compared with the hydroxyl in cellulose Contain a large amount of hydroxyl in area, these hydroxyl thermal stability are poor, are easy to decompose at high temperature, increase the toughness of timber, right The viscoplasticity of timber has important influence, in order to improve the intensity of plate, in the present embodiment, first carries out hot place to timber Reason, specifically, the plate after processing are put in nitrogen chamber, and then nitrogen at elevated temperature room temperature starts to inject to 140 DEG C Nitrogen controls temperature at 180 DEG C~260 DEG C, keeps the temperature 2h, is then shut off nitrogen injection, closing temperature control, and placement makes nitrogen chamber After temperature is down to 40 DEG C, plate is taken out, the heat treatment procedure of plate can be completed, heat treatment procedure effectively raises plate Toughness, and then improve its intensity.
In order to further remove moisture, in the present embodiment, heat modification treated plate drying box is dried at 105 DEG C It does more than for 24 hours, carries out water ratio test test, control moisture content between 9~15%, it is spare, if the water content mistake of timber Therefore height has to the water content for controlling timber in the presence of very big influence to its later strength, in the present embodiment, control Moisture content, certainly can be with 9~15% 12%.
In order to further enhance its intensity, in the present embodiment, cut according to the size of plate upper groove corresponding big Small steel plate, in the present embodiment, tension, shearing resistance and seismic hardening of the steel plate for plate, the cooperation of steel plate and quick growth poplar wood, Effectively raise poplar finished product it is integral after intensity, so that it is met construction timber needs.
Meanwhile it being opened according to the carbon cloth 2 that the length of required finished product cuts corresponding size, the face of carbon cloth Product should be less times greater than the lateral area of plate after finished product, in this way, the purpose of setting, is mainly to ensure that carbon cloth can wrap completely It wraps up in.
It is in the present embodiment, also special in order to further make to form an entirety between carbon cloth, steel plate and plate It is configured with corresponding structure glue, structure glue includes the carbon cloth glue for being bonded carbon cloth and the steel plate for being bonded steel plate Glue, wherein carbon cloth glue includes two groups of important components of A, B, and A group is modified epoxy, modified epoxy provided by the present embodiment Resin is by the epoxy resin that mass fraction includes 90 parts, 16.2 parts of carboxylic acrylonitrile butadiene rubber latexes, 6 parts of polyacrylic ester latexs, 7 parts of quartz Powder, 1.3 parts of alumina silicate, 2.5 portions of anti-settling agents, 35 parts of polyamide curing agents and 1.1 parts of gamma-aminopropyl-triethoxy-silanes are made; Specific processing method is after carboxylic acrylonitrile butadiene rubber latex is demulsified, to be dried for standby;After polyacrylic ester latex is demulsified, it is dried for standby; Carboxylic acrylonitrile butadiene rubber latex after drying is added in epoxy resin, 2h is reacted under conditions of temperature is 120 DEG C, sequentially adds baking Polyacrylic ester latex and gamma-aminopropyl-triethoxy-silane after dry react 1h under conditions of temperature is 120 DEG C, obtain It is the epoxy resin for the thick liquid that can be trickled under room temperature;Finally sequentially added in the epoxy resin of thick liquid anti-settling agent, Alumina silicate and silica flour, stir 40min after to get A group component modified epoxy resin.
B group is the intermixture of ethylenediamine modified phenolic aldehyde ammonia curing agent and aromatic amine curing agent, specifically, B component second The modified phenolic aldehyde ammonia curing agent of diamines and aromatic amine curing agent are mixed according to the ratio of mass ratio 1:2~5, in the present embodiment In, it matching as 1:2, the amount of aromatic amine curing agent mainly needs to be arranged according to FUTURE ENVIRONMENT, for example, the weather in the north, according to 1:2, the weather of the moist more heat in south, will reach 1:5, wherein ethylenediamine modified phenolic aldehyde ammonia curing agent and fragrance Amine hardener is provided by celebrating Da Feng engineering technology Co., Ltd, then, according to the ratio of mass ratio A:B=3:1, by A, B two Component is uniformly mixed, spare.
Steel plate glue includes two groups of important components of C, B, and B component is consistent with the B component of carbon cloth glue, and C group is acrylic acid modified ring Oxygen resin, acrylic modified epoxy resin provided by the present embodiment take 30 parts of Bisphenol F diglycidyl ether, first by mass fraction 5 parts of base methyl acrylate, 5 parts of ethyl methacrylate, 6 parts of methacrylic acid, 4 parts of styrene, 1 part of lauryl methacrylate After being mixed, under protective gas atmosphere under 90 DEG C of oil bath temperatures, the BPO promotor of 0.5 mass fraction of addition is reacted, Terminate the epoxy resin and acrylic copolymer to get graft polymerization to exothermic heat of reaction, then, in the asphalt mixtures modified by epoxy resin to graft polymerization In rouge and acrylic copolymer add partial size be 800~1000 mesh 5 parts of coarse whiting, partial size be 800~5000 4 parts of kaolin, Partial size is 10 parts of active light calcium of 2000~8000, and thick liquid is obtained after being uniformly mixed, and as C component acrylic is modified Then epoxy resin according to mass ratio C:B=3:1, two component of C, B is uniformly mixed, spare.
Then, the plate after drying is put into vacuum impregnation tank, the configured carbon cloth glue in part is added, control vacuum Impregnating autoclave is 1MPa, controls 75 DEG C of temperature, impregnates 3h, controls 75 DEG C of temperature primarily to prepared carbon cloth is avoided to be gelled Gu and the mode impregnated is selected, being primarily due to quick growth poplar wood is a kind of porous capillary materials, by various permanent tubular units A kind of composite capillary system that (skilful capillary) and instantaneous tubulose unit (microcapillary) are connected with each other, so timber has There is certain permeability, vacuum impregnation is exactly to utilize this feature, and by physics mode, a certain amount of carbon cloth glue is impregnated into wood Inside material, the performances such as density of wood, physical mechanics intensity, heat resistance and antiseptic fire-retardation are improved by filling, in the present embodiment In, in order to reach vacuum-impregnated purpose, first plate is put into vacuum impregnation tank, then with vacuum pump by vacuum impregnation tank It is pumped into -0.2MPa vacuum, then turns on imported valve, carbon cloth glue is pressed into vacuum impregnation tank using atmospheric pressure, to carbon After cloth glue submerges plate, vacuum impregnation tank is transferred to 1MPa, controls 75 DEG C of temperature, impregnates 3h, in the present embodiment, selects carbon cloth It is preferable relative to the mobility of steel plate glue that glue as dipping glue is mainly in view of carbon cloth glue, for carbon cloth glue, steel plate glue It is more more sticky.
Plate 2 after dipping is taken out, the carbon cloth glue on 2 surface of plate is quickly scraped off, the steel plate cut is passed through into steel Plate glue is quickly coated in the groove 21 of plate 2, and separately takes one block of plate, its corresponding groove 21 is made to be sleeved on steel plate On, in this way, allowing for steel plate plays the role of key between two plates 2, in this way, cooperatively forming one between plate 2 and steel plate A entirety, and so on, required thickness is combined, in the present embodiment, is formed by stacking for 10 blocks of plates, certainly in most Groove setting is not done in the outer surface of the two plates in outside.
In order to further improve its intensity, by according to the length and width of the plate 2 combined, corresponding ruler is cut The carbon cloth 2 of very little size, which is opened, bonds the plate combined, specifically, by carbon cloth 1 and the plate 2 combined It is bonded, to be guaranteed in bonding process smooth, straight using carbon cloth glue.Second is pasted after the construction of first layer carbon cloth 1 Layer carbon cloth 1 when stickup, first applies one layer of carbon cloth glue on the surface of first layer carbon cloth 1, then pastes the by preceding method Two layers of carbon cloth 1, to ensure the plumpness of carbon cloth glue.
After the glue of equal plates is slightly done, the plate combined is compressed with compaction mold, controls 40~50 DEG C of temperature, It is conserved, the time that curing time is 1~2 week to get to required finished product, when maintenance, will be combined with compaction mold Plate compact, curing period, are generally 1-2 weeks to reach design strength, (conserve 2 weeks or so at about 40 DEG C of temperature on average, average air Conserved 1 week or so at about 50 DEG C of temperature), it should carry out blocking fencing lawn during maintenance, finally, obtaining finished product.
Experiment detection:
It in experimentation, is tested using 100T YPE3000-4Z electron pressure testing machine, experimentation is using displacement The experimental method of load, sample dimensions are 100mm × 100mm, with a thickness of 105mm, loading velocity 2mm/min.It is loaded into most When big finder charge, reverse cyclic loadings 5 times, elasticity modulus is calculated, is then loaded onto test specimen destruction, different carbon fibers is tested and matches fine rate In the case where, the mechanical property of modifying cotton wood.
The different carbon fibers of table 1 are matched under fine rate, the mechanical property of poplar finished product provided by embodiment 1
With fine rate Test specimen number Peak value (kN) Compression strength (MPa) It deforms (mm) Elasticity modulus (MPa)
0.0017 A-11 402.5 40 4.986 1570.2
0.0034 A-21 411.3 35 7.542 1190.8
0.0051 A-31 430.5 33 5.525 1070.8
From the point of view of above-mentioned testing result, the present embodiment institute providing method is modified poplar obtained, fully meets existing Building needs.
Embodiment 2, the present embodiment provides a kind of construction technologies of the modified quick growth poplar wood of carbon fiber encased steel plate
As shown in figure 3, the construction work of the modified quick growth poplar wood of carbon fiber encased steel plate provided by the present embodiment and embodiment 1 The difference of skill is the setting of groove 21, is arranged compared to groove provided by embodiment 1 along cottonwood plank stuff long side interval, along short The structure that edge direction is staggered, groove 21 provided by the present embodiment are to be arranged through plate 2, i.e., groove 21 is only along poplar plate The longitudinal direction interval of material 2 is arranged, and the benefit being arranged in this way, which essentially consists in, facilitates processing, due to needing not in architectural process With the column of size, beam, plate, wall, needed using the construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate provided by embodiment 1 Will according to scene needs, be processed, and technical solution provided by the present embodiment can the large-scale production in factory, be not required to Consider required size in architectural process, it is only necessary to which then scale processing is arrived live scene as needed and cut Cutting can be completed.
The different carbon fibers of table 2 are matched under fine rate, the mechanical property of poplar finished product provided by embodiment 2
With fine rate Test specimen number Peak value (kN) Compression strength (MPa) It deforms (mm) Elasticity modulus (MPa)
0.0017 A-12 370.8 34 7.464 1450.3
0.0034 A-22 382.4 31 9.782 1098.5
0.0051 A-32 402.3 30 6.595 1045.2
From the point of view of above-mentioned testing result, the present embodiment institute providing method is modified poplar obtained, fully meets existing Building needs.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. It imitates embodiment and is applied to other fields, but without departing from the technical solutions of the present invention, according to the technical essence of the invention Any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the protection scope of technical solution of the present invention.

Claims (7)

1. a kind of construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate, which is characterized in that including following effective procedure:
A, selection: logical straight, the tree-walk 20cm of quick growth poplar wood trunk or so log is chosen, and is put in shady place placement;
B, it cuts: the quick growth poplar wood chosen being cut into the plate with a thickness of 10mm, rejects the plate for being unsatisfactory for requiring, processing board Length and width is size needed for component;
C, depths is managed: the plate handled well being carried out deep processing processing, does groove processing in plate surface;
D, dry: by deep processing, treated that plate is put in that shady place is dried 3-5 days or using dryer in 65 DEG C of -85 DEG C of effects Lower drying 8h or more;
E, heat modification: the plate after will be processed is put in nitrogen chamber, and nitrogen at elevated temperature room temperature is to 180 DEG C~260 DEG C to plate Material does heat modification processing;
F, it dries: by heat modification treated plate drying box more than 105 DEG C of drying for 24 hours, carrying out water ratio test test, Moisture content is controlled between 9~15%, it is spare;
G, cut: according to the size of plate upper groove cut steel plate of corresponding size and for wrap up be superimposed after plate carbon fiber Wei Bu, it is spare;
H, configuration structure glue: the structure glue includes the carbon cloth glue for being bonded carbon cloth and the steel plate for being bonded steel plate Glue, the carbon cloth glue include two groups of important components of A, B, wherein A group is modified epoxy, and B group is the modified phenolic aldehyde of ethylenediamine Two component of A, B is uniformly mixed by the intermixture of ammonia curing agent and aromatic amine curing agent according to mass ratio A:B=3:1, spare;Institute Stating steel plate glue includes two groups of important components of C, B, wherein and C group is acrylic modified epoxy resin, according to mass ratio C:B=3:1, Two component of C, B is uniformly mixed, it is spare;
I, it impregnates: the plate after drying is put into vacuum impregnation tank, configured carbon cloth glue is added, control vacuum impregnation tank For 1MPa, 75 DEG C of temperature are controlled, impregnates 3h;
J, it combines: the plate after dipping being taken out, the carbon cloth glue of plate surface, the steel that will be cut in g step are quickly scraped off Plate is quickly coated in the groove of plate by steel plate glue, and separately takes one block of plate, its corresponding groove is made to be covered on steel On plate, groove and steel plate between two plates is made to cooperatively form an entirety, and so on, combine required thickness;
K, it wraps up: the carbon cloth that g step is cut being wrapped in the plate that j step combines using carbon cloth glue and is bonded, To guarantee smooth, straight in bonding process, paste second layer carbon cloth after the construction of first layer carbon cloth, when stickup, first exist Then the external coating carbon cloth glue of first layer carbon cloth pastes second layer carbon cloth by preceding method, to ensure carbon cloth glue Plumpness;
L, it conserves: the plate wrapped is compressed with mold, control temperature is conserved at 40~50 DEG C, and curing time is 1~2 Week time to get arrive required finished product.
2. the construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate according to claim 1, which is characterized in that described In step c, the groove is arranged along the longitudinal direction interval of plate.
3. the construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate according to claim 2, which is characterized in that described In step c, the groove is arranged along the short side direction interleaved of plate.
4. the construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate according to claim 3, which is characterized in that described In step c, three column are at least arranged along plate short side direction for the groove.
5. the construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate according to claim 4, which is characterized in that described In step e, the plate after processing first is put in nitrogen chamber, and then nitrogen at elevated temperature room temperature starts to inject to 140 DEG C Nitrogen controls temperature at 180 DEG C~260 DEG C, keeps the temperature 2h, is then shut off nitrogen injection, closing temperature control, and placement makes nitrogen chamber After temperature is down to 40 DEG C, plate is taken out.
6. the construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate according to claim 5, which is characterized in that described The modified phenolic aldehyde ammonia curing agent of B component ethylenediamine and aromatic amine curing agent are mixed according to the ratio of mass ratio 1:2~5.
7. the construction technology of the modified quick growth poplar wood of carbon fiber encased steel plate according to claim 6, which is characterized in that described In i step, plate is put into vacuum impregnation tank first, vacuum impregnation tank is then pumped into -0.2MPa vacuum with vacuum pump, Then imported valve is turned on, carbon cloth glue is pressed into vacuum impregnation tank using atmospheric pressure, it, will after carbon cloth glue submerges plate Vacuum impregnation tank is transferred to 1MPa, controls 75 DEG C of temperature, impregnates 3h.
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