CN104802231A - Reinforced container soleplate and preparation method thereof - Google Patents
Reinforced container soleplate and preparation method thereof Download PDFInfo
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- CN104802231A CN104802231A CN201410040554.4A CN201410040554A CN104802231A CN 104802231 A CN104802231 A CN 104802231A CN 201410040554 A CN201410040554 A CN 201410040554A CN 104802231 A CN104802231 A CN 104802231A
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- 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
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- 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
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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- 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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
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- Laminated Bodies (AREA)
Abstract
The invention discloses a reinforced container soleplate and a preparation method thereof. The reinforced container soleplate comprises a surface layer, a core layer, a middle core layer, a core layer and a surface layer in sequence from the top to bottom, the core layers and/or middle core layer are made of bamboo, and the reinforced container soleplate further comprises a reinforced layer through inserted in the middle core layer. The preparation method includes that paving the reinforced layer and middle core layer; using the one-way paved bamboo mat material as the core layer, and assembling the surface layer, core layer, middle core layer, core layer and surface layer in sequence; hot pressing to composite to obtain the reinforced container soleplate after assembling. The density, intensity, elasticity modulus, surface quality and the like performance indexes of the reinforced container soleplate are up to the international container industry standards.
Description
Technical field
The present invention relates to container bottom board manufacturing technology field, in particular a kind of glass fiber reinforcement bamboo composite board material container bottom board and preparation method thereof.
Background technology
Container bottom board is the primary load bearing structure of container, and container bottom board manufacturing industry requires that base plate has very high mechanical property, accurate processing dimension, good impact resistance.For a long time, container bottom board mainly adopts the high density rigid broad-leaved wood grown in tropical rain forest to be primary raw material, and after making adopting large footpath level rounding become veneer, multilayer single plate group embryo, is hot pressed into glued board.Because the growth cycle of high density deciduous species is very long, generally all need 50 years even longer, and the demand of container bottom board increases day by day.In order to protect World Ecosystem environment, reduce the consumption of tropical hard wood resource, development of new container bottom board, widens the source of base plate material, has far-reaching realistic meaning.
In the patent of the production method of patent ZL93115652.0 bottom plate of bamboo container, bamboo wood is cutd open into the thin bamboo strip of wide uniform thickness by this method, thin bamboo strip is in flakes arranged in parallel, the mixed liquor putting into anticorrisive agent and phenolic resins floods rear lamination and pressurizes, the bottom plate of bamboo container produced can by the test request of trans-container, but the utilization rate of bamboo wood is low, it is complicated to manufacture, working (machining) efficiency is low, causes the high expensive of bottom plate of bamboo container, production capacity is limited, can not on a large scale for the marketization.
Mention in patent CN103013149 and utilize wood plastic composite central layer and the laminating of continuous glass fibre enhancing cortex to form.Invent with waste and old wood fibre and synthetic resin as raw material, and strengthen base plate performance by Surfaces Fiberglass, resource is saved on the basis ensureing to reach instructions for use, has reduced cost, this method for processing sheet material is based on wood plastic composite, and the mechanical property that wood is moulded and processing method thereof often occur the phenomenon of unstable properties for the container bottom board that span is larger.
Mention a kind of bamboo container bottom board in patent CN202640499, comprise mainboard body, this mainboard body comprises the curtain seat structure sheaf of at least one deck, and this curtain seat structure sheaf comprises some tilings bamboo bundle curtain side by side, and all bamboo bundle curtains are sewed together by suture; Described bamboo bundle curtain is form interrupted point-like along the fiber growth direction of bamboo wood and/or line segment shape crackle forms cancellated bamboo bundle curtain, is processed to form a kind of container bottom board of full bamboo slab rubber.
Summary of the invention
For the problem of prior art, the object of this invention is to provide a kind of base plate that can meet container loading requirement of strength and strengthen container bottom board, compound is carried out by fortifying fibre and bamboo material, through structural design and unique processing method of science, obtain a kind of base plate meeting container bottom board instructions for use, substitute the composite board for bottom board of container that the tropical broad-leaved hardwood such as traditional employing Southeast Asia clone's wood manufacture.
Another object of the present invention is to provide a kind of preparation method of above-mentioned enhancing container bottom board.
To achieve these goals, technical scheme of the present invention is as follows:
The invention provides a kind of enhancing container bottom board, comprise surface layer, sandwich layer, center core layer, sandwich layer and surface layer successively from top to bottom, described sandwich layer and/or center core layer are bamboo wood, and described enhancing container bottom board also comprises the enhancement layer interted in center core layer.
Described surface thickness is 1 ~ 2mm.
Described enhancement layer thickness is 0.5mm.
Described core layer thickness is 1 ~ 4mm.
Described center core layer thickness is 16 ~ 23mm.
Described surface layer is continuous lod thermoset ting resin composite.
Preferably, described continuous lod thermoset ting resin composite is formed by hot pressing after continuous lod thermosetting resin unidirectional cloth lay.
Described continuous fiber be selected from continuous glass fibre, continuous carbon fibre or continuous basalt fiber one or more, preferred continuous glass fibre or continuous basalt fiber, more preferably continuous glass fibre.
Described thermosetting resin be selected from epoxy resin, phenolic resins, unsaturated polyester resin, vinylite or polyimide resin one or more, preferred phenolic resins.
Described enhancement layer is continuous lod thermosetting resin unidirectional cloth.
Described continuous lod thermosetting resin unidirectional cloth be selected from glass fibre unidirectional cloth, carbon fiber unidirectional cloth or basalt fibre unidirectional cloth one or more, the glass fibre unidirectional cloth of preferred low cost or basalt fibre unidirectional cloth, more preferably glass fibre unidirectional cloth.
Described thermosetting resin be selected from epoxy resin, phenolic resins, unsaturated polyester resin, vinylite or polyimide resin one or more, preferred phenolic resins.
In described continuous lod thermosetting resin unidirectional cloth, the mass percentage of resin is 25 ~ 45%, preferably 25 ~ 40%, again preferably 25 ~ 30%.
Described sandwich layer is bamboo mat material, and the number of plies of bamboo mat material is 1 ~ 4 layer, and thickness in monolayer is 1 ~ 1.5mm, and bamboo mat material is by phenolic resins glue glued adhesion.
Described bamboo mat material is the thin bamboo strips used for weaving that bamboo is formed after treatment, the bamboo mat material interweaved in length and breadth that thin bamboo strips used for weaving is formed after braiding.
Described center core layer is unidirectional bamboo curtain splint, and the number of plies of unidirectional bamboo curtain splint is 15 ~ 20 layers, and thickness in monolayer is 1 ~ 2mm, water content≤8%, and unidirectional bamboo curtain splint is by phenolic resins glue glued adhesion.
The ply sequence of described unidirectional bamboo curtain splint is 0/90 replace laying or 0
2the mode laying of/90 liang of vertical and one horizontal.
The resin added of described phenolic resin glue is 300 ~ 400g/m
2, add insect-proof agent in phenolic resin glue, the mass percentage that the addition of insect-proof agent accounts for phenolic resin glue is 0.3 ~ 0.5%.
Described insect-proof agent is the bromo-2-(4-chlorphenyl of phoxim, Permethrin, decis, chlorine Flumethrin or 4-)-1-(ethoxyl methyl)-5-(trifluoromethyl) one or more in pyrroles-3-nitrile (Chlorfenapyr); The bromo-2-(4-chlorphenyl of preferred 4-)-1-(ethoxyl methyl)-5-(trifluoromethyl) pyrroles-3-nitrile (Chlorfenapyr).
Described bamboo curtain splint be bamboo through cutting, form the bamboo cane of strip; By unidirectional for this bamboo cane parallel arrangement, suture is utilized to connect the material of formation.
Described bamboo wood be selected from mao bamboon or bamboo one or both.
The thickness of described enhancing container bottom board is 28mm.
Present invention also offers a kind of preparation method of above-mentioned enhancing container bottom board, comprise the following steps:
Enhancement layer, center core layer are carried out laying; Using the bamboo mat material of unidirectional laying as sandwich layer, according to the order arrangement group embryo of surface layer, sandwich layer, center core layer, sandwich layer, surface layer; Hot pressing compound is carried out, obtained enhancing container bottom board after group embryo.
Described surface layer or described enhancement layer are prepared by the following method: after continuous fiber being carried out row's yarn warping, carry out impregnating resin by the dipping tank that thermosetting resin is housed; Continuous fiber after impregnating resin is extruded, makes the abundant wetting fibre of resin, obtain continuous lod thermosetting resin unidirectional cloth as enhancement layer; By described continuous lod thermosetting resin unidirectional cloth through 0/90 arrangement mode carry out laying, obtain surface layer.
Described sandwich layer is obtained by following methods: bamboo mat material, through drying, uses phenolic resin glue impregnation, dries, and second time is dried or dries, and laying obtains sandwich layer.
Described center core layer is obtained by following methods: bamboo curtain splint material, through drying, uses phenolic resin glue impregnation, dries, and second time is dried or dries, and laying obtains center core layer together with enhancement layer.
The technique of described hot pressing compound is: hot pressing temperature is 130 ~ 140 DEG C, and pressure is 1.0 ~ 3.0MPa, pressurize, and the time is 15 ~ 25min; Then pressure is dropped to half, pressure is 0.5 ~ 1.5MPa, complete release, exhaust, release after keeping 4 ~ 6min, or inwardly leads to cold water, release after its cool to room temperature, obtained container bottom board.
Compared with prior art, the present invention has the following advantages and beneficial effect:
1, the density of the container bottom board that obtains of the present invention, intensity, the property indices such as elastic modelling quantity and surface quality all reach trans-container industrial standard.
2, the container bottom board that obtains of the present invention, adopt the method for the interspersed unidirectional layer of cloth of fortifying fibre in the core, utilize the characteristic that in single orientation of fortifying fibre unidirectional cloth, hot strength is large, by reasonable lay group embryo design, enhance container bottom board material bending property in the longitudinal direction.
3, composite container baseboard designability of the present invention is strong, reasonably can select thickness and the density of surface layer and sandwich layer according to the demand of reality, to reach best economic effect.The surface layer of base plate is fibre reinforced composites, and tool has good wearability, corrosion resistance, and does not absorb water, easily cleans; in contrast to hardwood base plate; composite bottom board of the present invention improves service life greatly, and eliminates the operation of spraying paint bottom surface, favourable to environmental protection.In addition, composite board is the not raw bacterium of burn into not easily, can not there is the problem of damaging by worms.
4, container bottom board of the present invention, be completely free of the dependence for a long time to tropical broad-leaved hardwood and heavy caliber log, the composite adopted, fortifying fibre unidirectional cloth and fast growing wood etc. are all renewable resources, for container bottom board material source opens new way, promote the sustainable development of container industry.
Accompanying drawing explanation
Fig. 1 is the structural representation strengthening container bottom board shown in embodiment 1.
Fig. 2 is the structural representation strengthening container bottom board shown in embodiment 2.
Fig. 3 is the structural representation strengthening container bottom board shown in embodiment 3.
Fig. 4 is the structural representation strengthening container bottom board shown in embodiment 4.
Fig. 5 is the structural representation strengthening container bottom board shown in embodiment 5.
Wherein 11,21,31,41,51 is surface layer; 12,22,32,42,52 is sandwich layer; 13,23,33,43,53 is the unidirectional bamboo curtain splint material of 0 degree of laying; 14,24,34,44,54 is the unidirectional bamboo curtain splint material of 90 degree of layings; 15,25,35,45,55 is enhancement layer.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further detailed explanation.
For clearly representing the ply sequence strengthening container bottom board, reinforcing material Z is represented; 0 degree of presenting set vanning strengthens 0 degree of laminated material of unidirectional bamboo curtain splint in base plate center core layer; 90 degree of presenting set vannings strengthen unidirectional bamboo curtain splint 90 degree of laminated materials in base plate center core layer.
Water content≤8% of unidirectional bamboo curtain splint used below.
Bamboo mat material used is the thin bamboo strips used for weaving that bamboo is formed after treatment below, the bamboo mat material interweaved in length and breadth that thin bamboo strips used for weaving is formed after braiding.
Below bamboo curtain splint used be bamboo through cutting, form the bamboo cane of strip; By unidirectional for this bamboo cane parallel arrangement, suture is utilized to connect the material of formation.
Embodiment 1
A kind of container bottom board that strengthens comprises surface layer, sandwich layer, center core layer, sandwich layer, surface layer from top to bottom successively, and wherein said enhancing container bottom board also comprises the enhancement layer interted wherein.
The preparation of sandwich layer and center core layer preformed material: unidirectional mao bamboon bamboo curtain splint and mao bamboon bamboo mat material are dried, after oven dry gumming device put into by unidirectional bamboo curtain splint and bamboo mat material, impregnated phenolic resin glue, unidirectional bamboo curtain splint after impregnation and bamboo mat material are dried, airing, ageing, resin added is 300g/m
2the bromo-2-(4-chlorphenyl of 4-is added in phenolic resins)-1-(ethoxyl methyl)-5-(trifluoromethyl) pyrroles-3-nitrile (Chlorfenapyr) insect-proof agent content is 0.3%, carry out second time drying and processing, obtain the bamboo mat material of impregnation and the unidirectional bamboo curtain splint material of impregnation;
The preparation of surface layer and enhancement layer: after continuous carbon fibre being arranged yarn warping, is flooded by the dipping tank that phenolic resins is housed; Carbon fiber after impregnation is abundant extrudes, and obtain the thick continuous carbon fibre of 0.5mm and strengthen phenolic resins unidirectional cloth as enhancement layer 15, resin content is 25%; 2 layers of continuous carbon fibre are strengthened phenolic resins unidirectional cloth and carries out laying according to 0/90 degree of direction, obtain the surface layer 11 of container bottom board;
The preparation of sandwich layer 12: the bamboo mat material of impregnation thick for 2 layers of 1mm is carried out laying in the same way, obtains sandwich layer 12;
The preparation of center core layer: unidirectional bamboo curtain splint impregnation material thick for 19 layers of 1.3mm and the thick enhancement layer 15 of 2 layers of 0.5mm are carried out lay and obtains center core layer, lay mode is Z/0
2/ 90/0
2/ 90/0
2/ 90/0/90/0
2/ 90/0
2/ 90/0
2/ Z, wherein Z represents enhancement layer 15, and the 0 unidirectional bamboo curtain splint material 13,90 representing 0 degree of laying represents the unidirectional bamboo curtain splint material 14 of 90 degree of layings;
Above-mentioned each layer according to surface layer, sandwich layer, center core layer, sandwich layer, the mode of surface layer carries out group embryo, and the sheet material after group embryo is put into hot press and carried out hot pressing, and hot pressing temperature is 135 DEG C, and moulding pressure is 1MPa, and the heating dwell time is 15min; Then pressure reduces by half, and pressure is 0.5MPa, after pressurize 4min, and complete release, exhaust, release, or inwardly lead to cold water, release after its cool to room temperature, obtain container and strengthen base plate, surface thickness is 1mm, and core layer thickness is 1.8mm, and center core layer thickness is 22.4mm.
The vanning of this symmetric set strengthens base plate, and by conventional post-production, as container floor, can reach 0 degree of direction MOR is 110MPa, and 90 degree of direction MORs are 48MPa; 0 degree of direction elastic modelling quantity is 11000MPa, and 90 degree of direction elastic modelling quantity are 3500MPa.
Embodiment 2
A kind of container bottom board that strengthens comprises surface layer, sandwich layer, center core layer, sandwich layer, surface layer from top to bottom successively, and wherein said enhancing container bottom board also comprises the enhancement layer interted wherein.
The preparation of sandwich layer and center core layer preformed material: unidirectional bamboo bamboo curtain splint and bamboo bamboo mat material are dried, after oven dry gumming device put into by unidirectional bamboo curtain splint and bamboo mat material, impregnated phenolic resin glue, unidirectional bamboo curtain splint after impregnation and bamboo mat material are dried, airing, ageing, resin added is 325g/m
2, in phenolic resins, add the bromo-2-(4-chlorphenyl of 4-) and-1-(ethoxyl methyl)-5-(trifluoromethyl) pyrroles-3-nitrile (Chlorfenapyr) insect-proof agent content is 0.4%, carries out second time drying and processing, obtains bamboo mat and bamboo curtain splint impregnation material;
The preparation of surface layer and enhancement layer: after continuous glass fibre being arranged yarn warping, is flooded by the dipping tank that phenolic resins is housed; Fiber after impregnation is abundant extrudes, and obtain the thick continuous glass fibre of 0.5mm and strengthen phenolic resins unidirectional cloth as enhancement layer 25, resin content is 28%; 4 layers of continuous glass fibre are strengthened phenolic resins unidirectional cloth and carries out laying according to 0/90 degree of direction, obtain the surface layer 21 of container bottom board;
The preparation of sandwich layer 22: the bamboo mat material of impregnation thick for 4 layers of 1mm is carried out laying in the same way, obtains sandwich layer 22;
The preparation of center core layer: unidirectional bamboo curtain splint impregnation material thick for 17 layers of 1.42mm and the thick enhancement layer 25 of 3 layers of 0.5mm are carried out lay and obtains center core layer, lay mode is 0
2/ 90/0
2/ 90/Z/0
2/ 90/0
2/ Z/90/0
2/ 90/0
2/ Z, wherein Z represents enhancement layer 25, and the 0 unidirectional bamboo curtain splint material 23,90 representing 0 degree of laying represents the unidirectional bamboo curtain splint material 24 of 90 degree of layings;
Above-mentioned each layer according to surface layer, sandwich layer, center core layer, sandwich layer, the mode of surface layer carries out group embryo, and the sheet material after group embryo is put into hot press and carried out hot pressing, and hot pressing temperature is 130 DEG C, and moulding pressure is 2MPa, and the heating dwell time is 20min; Then pressure reduces by half, and pressure is 1MPa, after pressurize 5min, and complete release, exhaust, release, or inwardly lead to cold water, release after its cool to room temperature, obtain container and strengthen base plate, surface thickness is 2mm, and core layer thickness is 3.6mm, and center core layer thickness is 16.8mm.
This container strengthens base plate, and by conventional post-production, as container floor, can reach 0 degree of direction MOR is 68MPa, and 90 degree of direction MORs are 42MPa; 0 degree of direction elastic modelling quantity is 10000MPa, and 90 degree of direction elastic modelling quantity are 5500MPa.
Embodiment 3
A kind of container bottom board that strengthens comprises surface layer, sandwich layer, center core layer, sandwich layer, surface layer from top to bottom successively, and wherein said enhancing container bottom board also comprises the enhancement layer interted wherein.
The preparation of sandwich layer and center core layer preformed material: unidirectional mao bamboon bamboo curtain splint and mao bamboon bamboo mat material are dried, after oven dry gumming device put into by unidirectional bamboo curtain splint and bamboo mat material, impregnated phenolic resin glue, unidirectional bamboo curtain splint after impregnation and bamboo mat material are dried, airing, ageing, resin added is 350g/m
2, adding phoxim insect-proof agent content in phenolic resins is 0.3%, and Permethrin insect-proof agent content is 0.2%, carries out second time drying and processing, obtains bamboo mat and bamboo curtain splint impregnation material;
The preparation of surface layer and enhancement layer: after continuous glass fibre being arranged yarn warping, is flooded by the dipping tank that phenolic resins is housed; Fiber after impregnation is abundant extrudes, and obtain the thick continuous glass fibre of 0.5mm and strengthen phenolic resins unidirectional cloth as enhancement layer 35, resin content is 40%; 3 layers of continuous glass fibre are strengthened phenolic resins unidirectional cloth and carries out laying according to 0/90 degree of direction, obtain the surface layer 31 of container bottom board;
The preparation of sandwich layer 32: the bamboo mat material of impregnation thick for 3 layers of 1mm is carried out laying in the same way, obtains sandwich layer 32;
The preparation of center core layer: unidirectional bamboo curtain splint impregnation material thick for 19 layers of 1.4mm and the thick enhancement layer 35 of 4 layers of 0.5mm are carried out lay and obtains center core layer, lay mode is Z/02/90/Z/02/90/02/90/0/90/02/90/02/Z/90/02/Z, wherein Z represents enhancement layer 35, the 0 unidirectional bamboo curtain splint material 33,90 representing 0 degree of laying represents the unidirectional bamboo curtain splint material 34 of 90 degree of layings;
Above-mentioned each layer according to surface layer, sandwich layer, center core layer, sandwich layer, the mode of surface layer carries out group embryo, and the sheet material after group embryo is put into hot press and carried out hot pressing, and hot pressing temperature is 140 DEG C, and moulding pressure is 3MPa, and the heating dwell time is 15min; Then pressure reduces by half, and pressure is 1.5MPa, after pressurize 6min, and complete release, exhaust, release, or inwardly lead to cold water, release after its cool to room temperature, obtain container and strengthen base plate, surface thickness is 1.5mm, and core layer thickness is 2.7mm, and center core layer thickness is 19.6mm.
The vanning of this symmetric set strengthens base plate, and by conventional post-production, as container floor, can reach 0 degree of direction MOR is 100MPa, and 90 degree of direction MORs are 55MPa; 0 degree of direction elastic modelling quantity is 10000MPa, and 90 degree of direction elastic modelling quantity are 4000MPa.
Embodiment 4
A kind of container bottom board that strengthens comprises surface layer, sandwich layer, center core layer, sandwich layer, surface layer from top to bottom successively, and wherein said enhancing container bottom board also comprises the enhancement layer interted wherein.
The preparation of sandwich layer and center core layer preformed material: unidirectional bamboo bamboo curtain splint and bamboo bamboo mat material are dried, after oven dry gumming device put into by unidirectional bamboo curtain splint and bamboo mat material, impregnated phenolic resin glue, unidirectional bamboo curtain splint after impregnation and bamboo mat material are dried, airing, ageing, resin added is 400g/m
2, adding chlorine Flumethrin insect-proof agent content in phenolic resins is 0.3%, and decis insect-proof agent content is 0.2%, carries out second time drying and processing, obtains bamboo mat and bamboo curtain splint impregnation material;
The preparation of surface layer and enhancement layer: after continuous glass fibre being arranged yarn warping, is flooded by the dipping tank that phenolic resins is housed; Fiber after impregnation is abundant extrudes, and obtain the thick continuous glass fibre of 0.5mm and strengthen phenolic resins unidirectional cloth as enhancement layer 45, resin content is 30%; 4 layers of continuous glass fibre are strengthened phenolic resins unidirectional cloth and carries out laying according to 0/90 degree of direction, obtain the surface layer 41 of container bottom board;
The preparation of sandwich layer 42: the bamboo mat material of impregnation thick for 2 layers of 1mm is carried out laying in the same way, obtains sandwich layer 42;
The preparation of center core layer: unidirectional bamboo curtain splint impregnation material thick for 17 layers of 1.4mm and the thick enhancement layer 45 of 4 layers of 0.5mm are carried out lay and obtains center core layer, lay mode is Z/0
2/ 90/0
2/ 90/Z/0
2/ 90/0
2/ Z/90/0
2/ 90/0
2/ Z, wherein Z represents enhancement layer 45, and the 0 unidirectional bamboo curtain splint material 43,90 representing 0 degree of laying represents the unidirectional bamboo curtain splint material 44 of 90 degree of layings;
Above-mentioned each layer according to surface layer, sandwich layer, center core layer, sandwich layer, the mode of surface layer carries out group embryo, and the sheet material after group embryo is put into hot press and carried out hot pressing, and hot pressing temperature is 135 DEG C, and moulding pressure is 2MPa, and the heating dwell time is 25min; Then pressure reduces by half, and pressure is 1MPa, after pressurize 6min, and complete release, exhaust, release, or inwardly lead to cold water, release after its cool to room temperature, obtain container and strengthen base plate, surface thickness is 2mm, and core layer thickness is 1.8mm, and center core layer thickness is 20.4mm.
The vanning of this symmetric set strengthens base plate, and by conventional post-production, as container floor, can reach 0 degree of direction MOR is 105MPa, and 90 degree of direction MORs are 63MPa; 0 degree of direction elastic modelling quantity is 9500MPa, and 90 degree of direction elastic modelling quantity are 6500MPa.
Embodiment 5
A kind of container bottom board that strengthens comprises surface layer, sandwich layer, center core layer, sandwich layer, surface layer from top to bottom successively, and wherein said enhancing container bottom board also comprises the enhancement layer interted wherein.
The preparation of sandwich layer and center core layer preformed material: unidirectional mao bamboon bamboo curtain splint and mao bamboon bamboo mat material are dried, after oven dry gumming device put into by unidirectional bamboo curtain splint and bamboo mat material, impregnated phenolic resin glue, unidirectional bamboo curtain splint after impregnation and bamboo mat material are dried, airing, ageing, resin added is 350g/m
2, adding phoxim insect-proof agent content in phenolic resins is 0.3%, and decis insect-proof agent content is 0.2%, carries out second time drying and processing, obtains bamboo mat and bamboo curtain splint impregnation material;
The preparation of surface layer and enhancement layer: after continuous basalt fiber being arranged yarn warping, is flooded by the dipping tank that phenolic resins is housed; Fiber after impregnation is abundant extrudes, and obtain the thick continuous basalt fiber of 0.5mm and strengthen phenolic resins unidirectional cloth as enhancement layer 55, resin content is 45%; 3 layers of continuous basalt fiber are strengthened phenolic resins unidirectional cloth and carries out laying according to 0/90 degree of direction, obtain the surface layer 51 of container bottom board;
The preparation of sandwich layer 52: the bamboo mat material of impregnation thick for 2 layers of 1.5mm is carried out laying in the same way, obtains sandwich layer 52;
The preparation of center core layer: unidirectional bamboo curtain splint impregnation material thick for 19 layers of 1.33mm and the thick enhancement layer 55 of 4 layers of 0.5mm are carried out lay and obtains center core layer, lay mode is Z/0/90/0/90/Z/0/90/0/90/0/90/0/90/0/90/0/Z/90/0/90/0/Z, wherein Z represents enhancement layer 55, the 0 unidirectional bamboo curtain splint material 53,90 representing 0 degree of laying represents the unidirectional bamboo curtain splint material 54 of 90 degree of layings;
Above-mentioned each layer according to surface layer, sandwich layer, center core layer, sandwich layer, the mode of surface layer carries out group embryo, and the sheet material after group embryo is put into hot press and carried out hot pressing, and hot pressing temperature is 140 DEG C, and moulding pressure is 3MPa, and the heating dwell time is 15min; Then pressure reduces by half, and pressure is 1.5MPa, after pressurize 6min, and complete release, exhaust, release, or inwardly lead to cold water, release after its cool to room temperature, obtain container and strengthen base plate, surface thickness is 1.5mm, and core layer thickness is 2.7mm, and center core layer thickness is 19.6mm.
The vanning of this symmetric set strengthens base plate, and by conventional post-production, as container floor, can reach 0 degree of direction MOR is 750MPa, and 90 degree of direction MORs are 65MPa; 0 degree of direction elastic modelling quantity is 7600MPa, and 90 degree of direction elastic modelling quantity are 6500MPa.
The present invention is large using intensity, hardness is high, the fibre-reinforced thermoplastic sheet of good toughness is as skin-material, with bamboo mat material and unidirectional bamboo curtain splint as sandwich layer and center core layer material, design through different ply sequence, the gluing technique of employing science can be made has high performance composite container floor, given full play to the characteristics such as fiber reinforced thermolplastic sheet material is wear-resisting, acid and alkali-resistance, waterproof, high modulus and strength, meet in every respect container floor is proposed every machinery, physical technique requirement.
Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (15)
1. strengthen a container bottom board, it is characterized in that: comprise surface layer, sandwich layer, center core layer, sandwich layer and surface layer successively from top to bottom, described sandwich layer and/or center core layer are bamboo wood, and described enhancing container bottom board also comprises the enhancement layer interted in center core layer.
2. enhancing container bottom board according to claim 1, is characterized in that: described surface thickness is 1 ~ 2mm;
Or described enhancement layer thickness is 0.5mm;
Or described core layer thickness is 1 ~ 4mm;
Or described center core layer thickness is 16 ~ 23mm.
3. enhancing container bottom board according to claim 1, is characterized in that: described surface layer is continuous lod thermoset ting resin composite; Preferably, described continuous lod thermoset ting resin composite is formed by hot pressing after continuous lod thermosetting resin unidirectional cloth lay.
4. enhancing container bottom board according to claim 3, it is characterized in that: described continuous fiber be selected from continuous glass fibre, continuous carbon fibre or continuous basalt fiber one or more, preferred continuous glass fibre or continuous basalt fiber, more preferably continuous glass fibre;
Or described thermosetting resin is selected from one or more in epoxy resin, phenolic resins, unsaturated polyester resin, vinylite or polyimide resin, preferred phenolic resins.
5. enhancing container bottom board according to claim 1, is characterized in that: described enhancement layer is continuous lod thermosetting resin unidirectional cloth.
6. enhancing container bottom board according to claim 5, it is characterized in that: described continuous lod thermosetting resin unidirectional cloth be selected from glass fibre unidirectional cloth, carbon fiber unidirectional cloth or basalt fibre unidirectional cloth one or more, the glass fibre unidirectional cloth of preferred low cost or basalt fibre unidirectional cloth, more preferably glass fibre unidirectional cloth;
Or described thermosetting resin is selected from one or more in epoxy resin, phenolic resins, unsaturated polyester resin, vinylite or polyimide resin, preferred phenolic resins.
7. the enhancing container bottom board according to claim 3 or 5, is characterized in that: in described continuous lod thermosetting resin unidirectional cloth, the mass percentage of resin is 25 ~ 45%, preferably 25 ~ 40%, again preferably 25 ~ 30%.
8. enhancing container bottom board according to claim 1, is characterized in that: described sandwich layer is bamboo mat material, and the number of plies of bamboo mat material is 1 ~ 4 layer, and thickness in monolayer is 1 ~ 1.5mm, and bamboo mat material is by phenolic resins glue glued adhesion;
Or described center core layer is unidirectional bamboo curtain splint, the number of plies of unidirectional bamboo curtain splint is 15 ~ 20 layers, and thickness in monolayer is 1 ~ 2mm, water content≤8%, and unidirectional bamboo curtain splint is by phenolic resins glue glued adhesion.
9. enhancing container bottom board according to claim 8, is characterized in that: described bamboo mat material is the thin bamboo strips used for weaving that bamboo is formed after treatment, the bamboo mat material interweaved in length and breadth that thin bamboo strips used for weaving is formed after braiding;
Or the ply sequence of described unidirectional bamboo curtain splint is 0/90 replace laying or 0
2the mode laying of/90 liang of vertical and one horizontal;
Or the resin added of described phenolic resin glue is 300 ~ 400g/m
2, add insect-proof agent in phenolic resin glue, the mass percentage that the addition of insect-proof agent accounts for phenolic resin glue is 0.3 ~ 0.5%;
Or described bamboo curtain splint be bamboo through cutting, form the bamboo cane of strip; By unidirectional for this bamboo cane parallel arrangement, suture is utilized to connect the material of formation.
10. enhancing container bottom board according to claim 9, is characterized in that: described insect-proof agent is the bromo-2-(4-chlorphenyl of phoxim, Permethrin, decis, chlorine Flumethrin or 4-)-1-(ethoxyl methyl)-5-(trifluoromethyl) one or more in pyrroles-3-nitrile; The bromo-2-(4-chlorphenyl of preferred 4-)-1-(ethoxyl methyl)-5-(trifluoromethyl) pyrroles-3-nitrile.
11. enhancing container bottom boards according to claim 1, is characterized in that: described bamboo wood be selected from mao bamboon or bamboo one or both;
Or the thickness of described enhancing container bottom board is 28mm.
The preparation method of 12. 1 kinds of arbitrary described enhancing container bottom boards of claim 1 to 11, is characterized in that: comprise the following steps:
Enhancement layer, center core layer are carried out laying; Using the bamboo mat material of unidirectional laying as sandwich layer, according to the order arrangement group embryo of surface layer, sandwich layer, center core layer, sandwich layer, surface layer; Hot pressing compound is carried out, obtained enhancing container bottom board after group embryo.
The preparation method of 13. enhancing container bottom boards according to claim 12, it is characterized in that: described surface layer or described enhancement layer are prepared by the following method: after continuous fiber being carried out row's yarn warping, carry out impregnating resin by the dipping tank that thermosetting resin is housed; Continuous fiber after impregnating resin is extruded, makes the abundant wetting fibre of resin, obtain continuous lod thermosetting resin unidirectional cloth as enhancement layer; By described continuous lod thermosetting resin unidirectional cloth through 0/90 arrangement mode carry out laying, obtain surface layer.
The preparation method of 14. enhancing container bottom boards according to claim 12, is characterized in that: described sandwich layer is obtained by following methods: bamboo mat material, through drying, uses phenolic resin glue impregnation, dries, and second time is dried or dries, and laying obtains sandwich layer;
Or described center core layer is obtained by following methods: bamboo curtain splint material, through drying, uses phenolic resin glue impregnation, dry, second time is dried or dries, and laying obtains center core layer together with enhancement layer.
The preparation method of 15. enhancing container bottom boards according to claim 12, is characterized in that: the technique of described hot pressing compound is: hot pressing temperature is 130 ~ 140 DEG C, and pressure is 1.0 ~ 3.0MPa, pressurize, and the time is 15 ~ 25min; Then pressure is dropped to half, pressure is 0.5 ~ 1.5MPa, complete release, exhaust, release after keeping 4 ~ 6min, or inwardly leads to cold water, release after its cool to room temperature, obtained container bottom board.
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| CN104802231B (en) | 2017-08-04 |
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Denomination of invention: Reinforced container soleplate and preparation method thereof Effective date of registration: 20191202 Granted publication date: 20170804 Pledgee: Chuzhou economic and Technological Development Corporation Pledgor: Shanghai Jieshijie New Materials (Group) Co., Ltd. Registration number: Y2019980000815 |
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