CN103342025A - Large-breadth integrated material and manufacturing method thereof - Google Patents
Large-breadth integrated material and manufacturing method thereof Download PDFInfo
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- CN103342025A CN103342025A CN2013102963080A CN201310296308A CN103342025A CN 103342025 A CN103342025 A CN 103342025A CN 2013102963080 A CN2013102963080 A CN 2013102963080A CN 201310296308 A CN201310296308 A CN 201310296308A CN 103342025 A CN103342025 A CN 103342025A
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Abstract
The invention discloses a large-breadth integrated material. The large-breadth integrated material comprises a base material layer and a tensile enhancement layer, wherein the tensile enhancement layer is attached to the upper surface and/or the lower surface of the base material layer, and comprises thermoplastic matrix resin and a fiber which is filled into the thermoplastic matrix resin; the fiber at least comprises a layer of longitudinal fiber of which the trend accords with or basically accords with the length direction of the base material layer. The large-breadth integrated material is high in tensile strength, bending strength and elasticity modulus. The invention also relates to a container soleplate which is made of the large-breadth integrated material. Correspondingly, the invention also discloses a method for manufacturing the large-breadth integrated material. The method comprises the following steps of: (1) preparing the base material layer and the tensile enhancement layer; (2) attaching the tensile enhancement layer to the upper surface and/or the lower surface of the base material layer; (3) performing pre-heating; (4) performing hot-pressing lamination to obtain the large-breadth integrated material.
Description
Technical field
The present invention relates to a kind of sheet material and manufacture method thereof, relate in particular to a kind of integrated sheet material and manufacture method thereof.
Background technology
Because the specific environment for use of inland container depot, its base plate has all proposed high requirement for ageing-resistant performance, the mechanical strength of material therefor, and is especially then more strict for the requirement of fatigue performance.At present, most of inland container depot base plate all adopts high-quality hardwood material such as toothed oak wood or oak to make.
Yet, along with the continuous exploitation to high-quality hardwood resource, high-quality hardwood resource is in short supply day by day and use and to be restricted, in contrast be growth along with user's request, the demand of container but goes up year by year, and the contradiction of this two aspect has caused the raw material of inland container depot to be difficult to practical requirement.
In the case, in recent years, utilizing non-prime hardwood resource to increase gradually as the research of the raw-material development and application of making inland container depot, is the requirement that raw-material integrated timber all can not meet inland container depot baseboard material mechanical property but adopt existing technical scheme processing with non-prime hardwood.
Publication number is CN1814424A, open day is on August 9th, 2006, the Chinese patent literature that name is called " reinforced self-strengthening method of integrating bamboo sheet " discloses a kind of technical scheme, the bonding thickening of integrating bamboo sheet multilayer that it is at first made the bamboo fragment, and drill through pore, in pore, inject reinforcing bar; Then it is packed and put pressure vessel into, pressure vessel is carried out the round-robin method of 1 to 5 time pressurization, pressurize and pressure release; Last under the effect of isostatic pressure even compressed bamboo material gap, thereby fine and close and make it wrap reinforcing bar to realize the whole effect of strengthening to reach the bamboo wood centrality.The technological process of this technical scheme is comparatively complicated, and has also increased the deadweight of integrated timber when having strengthened integrated timber sheet material mechanical property widely, and such integrated timber is not suitable for as the container bottom board material.
Publication number is CN102514051A, open day on June 27th, 2012, the Chinese patent literature that name is called " basalt continuous fiber strengthens bamboo wood-Wood composite material and manufacture method thereof " discloses a kind of composite and processing technology thereof of utilizing fiber reinforced thermosetting resin to be affixed on bamboo wood-timber bottom surface, this technology is reinforcing material with the basalt fibre, be coupling agent with the chemical substance that contains the silanes chemical composition, with polyurethane, resorcinol, phenolic resins, epoxy resin etc. strengthen bamboo wood-Wood composite material for adhesive produces basalt continuous fiber.But the resin matrix in the above-mentioned processing technology has adopted thermosetting resin, and thermosetting resin exists shortcomings such as molding cycle is long, toxicity is big in the assembly process, is used for container bottom board and also may be faced with potential deficiencies such as fragility is big, fracture ductility difference.
Summary of the invention
One of purpose of the present invention provides a kind of long-breadth laminted wood, and it has higher intensity and elastic modelling quantity, so comprehensive mechanical property is good, can be applicable to the numerous areas that needs the premium properties long-breadth laminted wood.
Another object of the present invention provides a kind of container bottom board of being made by above-mentioned long-breadth laminted wood.
Another purpose of the present invention provides a kind of manufacture method of above-mentioned long-breadth laminted wood, and this manufacture method can make the long-breadth laminted wood with good comprehensive mechanical property, and manufacturing process is simple.
For achieving the above object, the invention provides a kind of long-breadth laminted wood, it comprises: substrate layer and be applied to the upper surface of described substrate layer and/or the tension enhancement layer of lower surface, this tension enhancement layer comprises the thermoplastic matrix resin and is filled in the interior fiber of thermoplastic matrix resin that described fiber comprises that at least one deck moves towards the longitudinal fiber of or basically identical consistent with the length direction of substrate layer.
The technical program has significantly promoted tensile strength, bending strength and the elastic modelling quantity of integrated timber by the tension enhancement layer of applying ointment or plaster at substrate layer.Meanwhile, adopted the thermoplastic matrix resin in the technical program, on the one hand longitudinal fiber has been played the effect of compound enhancing, avoided on the other hand that the thermosetting resin molding cycle is long, toxicity is big, shortcoming such as big, the poor ductility of fragility after the moulding; In addition, because the enhancing effect of tension enhancement layer can make the processing technology of integrated timber base material simplify more.
In addition, in the technical program, the tension enhancement layer can only be applied ointment or plaster in the one side of substrate layer, namely on upper surface or the lower surface; Certainly, in order to strengthen the effect that improves mechanical property, also can apply ointment or plaster the tension enhancement layer of namely on upper surface and lower surface, all applying ointment or plaster the two-sided of substrate layer.
Need to prove in addition, in the technical program, the fiber that is filled in the thermoplastic matrix resin is tension enhancement layer " skeleton ", when these fibers all are that the fiber in the tension enhancement layer is unidirectional when moving towards the longitudinal fiber of or basically identical consistent with the length direction of substrate layer; When also having the fiber of other trends except longitudinal fiber, the fiber in the tension enhancement layer can be thought netted.
Further, in long-breadth laminted wood of the present invention, described tension enhancement layer is applied on the substrate layer by resin-bonded layer.
Further, the above-mentioned resin-bonded layer of resin-bonded layer of serving as reasons and making through polyethylene and/or the polypropylene of graft modification.
Further, above-mentioned resin-bonded layer is main body by polyethylene and/or polypropylene through graft modification, adds the resin-bonded layer that linea low density polymer and/or unsaturated hydrocarbons are made.
In long-breadth laminted wood of the present invention, described substrate layer can be the wood substrate layer, and it also can be bamboo matter substrate layer in addition.
Further, above-mentioned wood substrate layer is non-prime hardwood substrate layer, for example birch, pine or China fir etc.
Further, the thermoplastic matrix resin in the described tension enhancement layer be polyethylene, polypropylene, PETG at least one of them.
Further, in long-breadth laminted wood of the present invention, the fiber in the described tension enhancement layer be in glass fibre, carbon fiber and the aramid fiber at least one of them.Glass fibre, carbon fiber and aramid fiber are fortifying fibre, and itself and the formed tension enhancement layer in the compound back of thermoplastic matrix resin can improve the mechanical property of integrated timber better, and reduce thermal deformation to the adverse effect of integrated timber.
In order further to promote the comprehensive mechanical property of long-breadth laminted wood, in the preferred technical solution of the present invention, fiber comprises at least that also one deck moves towards the transverse fiber of or basically identical consistent with the width of substrate layer.
In another embodiment, described fiber also comprises the first oblique fiber and the second oblique fiber, and the inclination of the described first oblique fiber and second oblique fiber trend and is 60 degree with the trend of longitudinal fiber respectively toward each other.
In another embodiment, described fiber also comprises the first oblique fiber and the second oblique fiber, and the inclination of the described first oblique fiber and second oblique fiber trend and is 45 degree with the trend of longitudinal fiber respectively toward each other.
Length 〉=the 5m of long-breadth laminted wood of the present invention.
Further, in long-breadth laminted wood of the present invention, the thickness of described tension enhancement layer is 1.0-2.5mm.
Based on another object of the present invention, the present invention is also corresponding to provide a kind of container bottom board of being made by above-mentioned long-breadth laminted wood.
Based on another purpose of the present invention, the present invention is the corresponding manufacture method that a kind of long-breadth laminted wood is provided also, and it comprises step:
(1) preparation substrate layer;
Preparation tension enhancement layer: fiberfill fibers in the thermoplastic matrix resin, make the longitudinal fiber that has at least one deck to move towards or basically identical consistent with the length direction of substrate layer in the fiber, then it is pressed into stratiform;
(2) the tension enhancement layer is applied ointment or plaster at upper surface and/or the lower surface of substrate layer;
(3) preheating;
(4) hot pressing is fitted, and makes long-breadth laminted wood.
In above-mentioned manufacture method, when preparation tension enhancement layer, at least need to make that the fiber in the tension enhancement layer has the longitudinal fiber that one deck trend overlaps with the trend of substrate layer length direction, make the long-breadth laminted wood of being processed into obtain the lifting of comprehensive mechanical properties such as intensity and elastic modelling quantity to the full extent.
Need to prove that the preparation method of substrate layer is that those skilled in that art are known in the technical program, so the concrete manufacture method of the substrate layer of this paper repeats no more.For example publication number is CN101722540A, open day is on June 9th, 2010, name is called in the Chinese patent literature of " long-breadth laminted wood and preparation method thereof " and discloses a kind of manufacture method, substrate layer in the technical program can adopt the manufacture method (integrated timber in this patent documentation is equivalent to the substrate layer in this case) of the long-breadth laminted wood of mentioning in the disclosure document, makes by steps such as saw solution, applying glue, assembly, hot pressing.But, need be appreciated that the preparation of substrate layer is not limited to disclosed this a kind of manufacture method of patent documentation that publication number is CN101722540A in the technical program.
Further, in above-mentioned steps (1), the thickness of the tension enhancement layer of preparation is 1.0-2.5mm.
Further, above-mentioned in step (1), the thermoplastic matrix resin in the tension enhancement layer adopt polyethylene, polypropylene, PETG at least one of them.
Further, in above-mentioned steps (1), make substrate layer after, the defective on the substrate layer surface that makes is filled up equating, so that the substrate layer with good surface morphology to be provided, make the more smooth applying of applying ointment or plaster of tension enhancement layer in the step (2).
Further, in above-mentioned steps (1), fiber adopt in glass fibre, carbon fiber and the aramid fiber at least one of them.
Further, in above-mentioned steps (1), described substrate layer is made by wood material.
Further, in step (1), described substrate layer is made by non-prime hardwood raw materials such as birch, pine or China firs.
Further, in the step of manufacturing (1) of above-mentioned long-breadth laminted wood, during preparation tension enhancement layer, make the transverse fiber that has at least one deck to move towards or basically identical consistent with the width of substrate layer in the fiber, thereby make transverse fiber and longitudinal fiber in the thermoplastic matrix resin, form mesh skeleton.
Perhaps, when in step (1), preparing the tension enhancement layer, make the first oblique fiber and the second oblique fiber are arranged in the fiber, the inclination trend of the described first oblique fiber and the second oblique fiber toward each other, and the trend with longitudinal fiber is 60 degree respectively, thereby makes longitudinal fiber and the first oblique fiber and the second oblique mesh skeleton that forms another kind of structure in the thermoplastic matrix resin.
Or, when in step (1), preparing the tension enhancement layer, make the first oblique fiber and the second oblique fiber are arranged in the fiber, the inclination trend of the described first oblique fiber and the second oblique fiber toward each other, and the trend with longitudinal fiber is 45 degree respectively, thereby makes longitudinal fiber and the first oblique fiber and the second oblique mesh skeleton that forms another structure in the thermoplastic matrix resin.
Compared to unidirectional fibre, reticular fibre can further promote comprehensive mechanical properties such as the intensity of long-breadth laminted wood and elastic modelling quantity.
Under a kind of embodiment of this case, in above-mentioned steps (2), the tension enhancement layer can be applied ointment or plaster at upper surface and/or the lower surface of substrate layer by the resin-bonded layer of making through polyethylene and/or the polypropylene of graft modification.
Under the another kind of embodiment of this case, in above-mentioned steps (2), also can be with the tension enhancement layer by being main body by polyethylene and/or polypropylene through graft modification, the resin-bonded layer that interpolation linea low density polymer and/or unsaturated hydrocarbons are made is applied ointment or plaster at upper surface and/or the lower surface of substrate layer.
Preferably, in the manufacture method of long-breadth laminted wood of the present invention, in above-mentioned steps (3), preheat temperature is 180-220 ℃, and be 1-2min preheating time.
Preferably, in the manufacture method of long-breadth laminted wood of the present invention, in above-mentioned steps (4), the temperature that hot pressing is fitted is 90-110 ℃, and the time is 1-2min.
Preferably, in the manufacture method of long-breadth laminted wood of the present invention, in above-mentioned steps (4), the unit pressure that hot pressing is fitted is 4-18kg/cm
2
The setting of above-mentioned hot pressing binding temperature parameter is intended to abundant soften resin, reduces resin viscosity to increase resin flow, if temperature is too high, then can cause resin or degradation of fiber, even decompose; If temperature is low excessively, then can influence the effect of applying ointment or plaster of tension enhancement layer.The setting of above-mentioned hot pressing applying unit pressure and time parameter then is in order to form complete tension enhancement layer on the integrated timber surface, when taking pressure or time incorrect, the tension enhancement layer of moulding can the later stage use or test process in occur and the peeling off of substrate layer, or problem such as tensile strength, ageing-resistant performance that the tension enhancement layer occurs be not up to standard, and then cause the comprehensive mechanical property of long-breadth laminted wood to be affected.
Long-breadth laminted wood of the present invention has intensity and elastic modelling quantity, and its rift grain MOR MOR of the length direction of long-breadth laminted wood (namely along) and the modulus of elasticity parellel to grain elastic modelling quantity of the length direction of long-breadth laminted wood (namely along) can reach 85MPa respectively respectively and more than the 10000MPa.
In addition, long-breadth laminted wood of the present invention is owing to the tension enhancement layer of having applied ointment or plaster on the substrate layer surface, make this integrated timber can adopt that density is less, intensity is on the low side but resourceful non-prime timber as the raw material of producing its substrate layer, enlarging the raw material range of choice, when having reduced production cost, can also guarantee that long-breadth laminted wood reaches required mechanical property requirements, therefore be highly suitable for as manufacturing fields higher to requirement of strength such as production container bottom boards.
Correspondingly, the manufacture method of long-breadth laminted wood of the present invention has also shortened process period on the basis of the intensity that has improved long-breadth laminted wood and elastic modelling quantity, has reduced the influence of technology to environment; In optimized technical scheme, it utilizes non-prime timber resources to expand the raw-material scope of application under the condition that satisfies the integrated timber mechanical property requirements, has realized the purpose of the excellent usefulness of bad material, the wide usefulness of narrow material.
Description of drawings
Fig. 1 is the production line schematic diagram of manufacture method under a kind of embodiment of long-breadth laminted wood of the present invention.
The perspective view of the long-breadth laminted wood that Fig. 2 makes for embodiment of the invention 1-5.
Fig. 3 is that long-breadth laminted wood shown in Figure 2 is at the partial enlarged drawing at A place.
Fig. 4 has shown the structure of moving towards of fiber in the long-breadth laminted wood that embodiment of the invention 1-5 makes.
Fig. 5 has shown long-breadth laminted wood of the present invention under the other embodiment, fiber move towards structure.
Fig. 6 has shown long-breadth laminted wood of the present invention under other embodiment, fiber move towards structure.
The specific embodiment
Come long-breadth laminted wood of the present invention and manufacture method thereof are further explained explanation below in conjunction with Figure of description and concrete embodiment, but this is explained and is not constituted improper restriction to technical solution of the present invention.
Fig. 1 has shown the production line of manufacture method under a kind of embodiment of long-breadth laminted wood of the present invention, and the arrow among Fig. 1 is represented the direct of travel of substrate layer in production line.Adopt this production line to make long-breadth laminted wood among the embodiment of the invention 1-5 according to following step:
(1a) preparation length is 5m, thickness is the substrate layer of 26mm: adopt birch to make substrate layer as the base material raw material, this substrate layer is made by several birch cell stripes applying glue splicing, assembly, hot pressing on width and length direction, apply the clamping force of 0.2-1.0MPa during the hot pressing charging at the width of substrate layer by the side pressure roller, the substrate layer that makes carries out the fixed thick processing of double surfacer, thickness deviation control is at ± 0.25mm, simultaneously the defective on substrate layer surface filled up equating to obtain substrate layer 11 with good surface morphology;
(1b) preparation thickness be the tension enhancement layer of 1.0-2.5mm: with polypropylene as the thermoplastic matrix resin, and filled glass fiber within it, make and have in the glass fibre that trend is consistent with the length direction of substrate layer or the longitudinal fiber of basically identical, and the width of trend and substrate layer is consistent or the basically identical transverse fiber, namely make to be filled in the network structure that fiber in the polypropylene forms square crossing, then this compound is pressed into stratiform after rolling standby;
(2) apply ointment or plaster: with above-mentioned standby tension enhancement layer 13 by applying ointment or plaster on the surface of substrate layer 11 through the acrylic resin tack coat 12 of graft modification;
(3) preheating: adopt the applied ointment or plaster integrated timber slab of tension enhancement layer 13 of 6 pairs of preheating machines to carry out preheating, preheat temperature is 180-220 ℃, and be 1-2min preheating time;
(4) hot pressing is fitted: the integrated timber slab after 7 pairs of preheatings of employing continuous calendar press carries out hot pressing fits, and temperature is 90-110 ℃, and the time is 1-2min, and unit pressure is 4-18kg/cm
2
(5) subsequent treatment: the cooling back divides saw 8 cutting edge deburrings by cutting out, and makes the long-breadth laminted wood that thickness is 28mm.
Table 1 has been listed the concrete technological parameter of each step among this case embodiment 1-9.
Table 1.
Table 2 has been listed the mechanical property that adopts the long-breadth laminted wood that the described method of embodiment 1-9 makes.
Table 2.
| ? | Rift grain MOR (MPa) | Modulus of elasticity parellel to grain (MPa) |
| Embodiment 1 | 94.239 | 10133 |
| |
91.353 | 10318 |
| Embodiment 3 | 90.687 | 10429 |
| |
104.784 | 10646 |
| Embodiment 5 | 101.232 | 11213 |
| |
102.786 | 10747 |
| Embodiment 7 | 105.117 | 11274 |
| |
107.781 | 11689 |
| Embodiment 9 | 106.449 | 11748 |
In order to contrast the implementation result that shows the technical program, the inventor has carried out Performance Detection to the birch substrate layer among this case embodiment, and recording its rift grain MOR is 82.6MPa, and modulus of elasticity parellel to grain is 8278MPa.And applied ointment or plaster the rift grain MOR of integrated timber of tension enhancement layer as can be seen among this case embodiment all more than 90MPa by table 2, and modulus of elasticity parellel to grain is all more than 10000MPa, the mechanical property of seeing the integrated timber of the tension enhancement layer of having applied ointment or plaster thus will be far superior to the not apply ointment or plaster mechanical property of substrate layer of tension enhancement layer.
Fig. 2 and Fig. 3 have shown the structure of the long-breadth laminted wood that above-described embodiment 1-5 makes.As can be seen, the tension enhancement layer 13 that this long-breadth laminted wood 10 comprises substrate layer 11 and is applied to substrate layer 11 lower surfaces is provided with the resin-bonded layer 12 in order to realize applying ointment or plaster between substrate layer 11 and the tension enhancement layer 13 from Fig. 2 and Fig. 3.Substrate layer 11 is spliced by the polylith cell stripes.Be filled with longitudinal fiber 131 and the width unanimity of two-layer trend and substrate layer or the transverse fiber 132 of basically identical of one deck trend or basically identical consistent with the length direction of substrate layer among the thermoplastic matrix resin of tension enhancement layer 13.
Fig. 4 has further shown the structure of moving towards of fiber among above-described embodiment 1-5.From Fig. 4, can be clear that very much, the length direction P of the trend of longitudinal fiber 131 and substrate layer is consistent, and the width Q of the trend of transverse fiber 132 and substrate layer is consistent, longitudinal fiber 131 and transverse fiber 132 is vertical and form network structure mutually, is filled in the thermoplastic matrix resin equably.
In addition, in other embodiments, also can adopt timber such as pine or China fir as the raw material of preparation base material in the above-mentioned steps (1a), perhaps adopt bamboo raw material.
In above-mentioned steps (1b), fortifying fibres such as carbon fiber and aramid fiber can also be filled in the thermoplastic resin.
Resin-bonded layer in above-mentioned steps (2) also can add linea low density polymer and/or unsaturated hydrocarbons and be prepared from by being main body by polyethylene and/or polypropylene through graft modification.
In addition, Fig. 5 has shown long-breadth laminted wood of the present invention under the other embodiment, fiber move towards structure.As shown in Figure 5, under this embodiment, the fiber in the tension enhancement layer also comprises the first oblique fiber 133 and the second oblique fiber 134 except longitudinal fiber 131, the trend of the first oblique fiber 133 and the second oblique fiber 134 and is 60 degree angles with the trend of longitudinal fiber respectively toward each other.
Fig. 6 has shown long-breadth laminted wood of the present invention under some other embodiment, fiber move towards structure.As shown in Figure 6, under this embodiment, fiber in the tension enhancement layer is except longitudinal fiber 131, also comprise the first oblique fiber 133 and the second oblique fiber 134, the trend of the first oblique fiber 133 and the second oblique fiber 134 toward each other, and both are 45 degree angles with the trend of longitudinal fiber respectively.
The long-breadth laminted wood that obtains by manufacture method of the present invention has good tensile strength, bending resistance and elastic modelling quantity, therefore comprehensive mechanical property is good, simultaneously, it also possesses ageing-resistant performance and fatigue performance preferably, be suitable for container and make the field, especially be suitable for producing the base plate of inland container depot.
It should be noted that; the above-mentioned explanation of disclosed embodiment makes this area professional and technical personnel to carry out multiple similar variation and modification for present embodiment apparently; this similar variation is all distortion that those skilled in the art can directly draw or be easy to just associate from content disclosed by the invention, all should belong to protection scope of the present invention.Therefore the present invention can not be subjected to the restriction of this embodiment.
Claims (29)
1. long-breadth laminted wood, it comprises:
Substrate layer;
Be applied to the upper surface of described substrate layer and/or the tension enhancement layer of lower surface, described tension enhancement layer comprises the thermoplastic matrix resin and is filled in the interior fiber of thermoplastic matrix resin that described fiber comprises that at least one deck moves towards the longitudinal fiber of or basically identical consistent with the length direction of substrate layer.
2. long-breadth laminted wood as claimed in claim 1 is characterized in that: described tension enhancement layer is applied on the substrate layer by resin-bonded layer.
3. long-breadth laminted wood as claimed in claim 2 is characterized in that: the described resin-bonded layer of resin-bonded layer of serving as reasons and making through polyethylene and/or the polypropylene of graft modification.
4. long-breadth laminted wood as claimed in claim 2 is characterized in that: described resin-bonded layer is main body by polyethylene and/or polypropylene through graft modification, adds the resin-bonded layer that linea low density polymer and/or unsaturated hydrocarbons are made.
5. long-breadth laminted wood as claimed in claim 1, it is characterized in that: described substrate layer is the wood substrate layer.
6. long-breadth laminted wood as claimed in claim 5, it is characterized in that: described substrate layer is non-prime hardwood substrate layer.
7. long-breadth laminted wood as claimed in claim 1 is characterized in that: the thermoplastic matrix resin in the described tension enhancement layer for polyethylene, polypropylene, PETG at least one of them.
8. long-breadth laminted wood as claimed in claim 1 is characterized in that: the fiber in the described tension enhancement layer be in glass fibre, carbon fiber and the aramid fiber at least one of them.
9. long-breadth laminted wood as claimed in claim 1 is characterized in that: described fiber also comprises the transverse fiber of one deck trend or basically identical consistent with the width of substrate layer at least.
10. long-breadth laminted wood as claimed in claim 1, it is characterized in that: described fiber also comprises the first oblique fiber and the second oblique fiber, the inclination of the described first oblique fiber and second oblique fiber trend and is 60 degree with the trend of longitudinal fiber respectively toward each other.
11. long-breadth laminted wood as claimed in claim 1, it is characterized in that: described fiber also comprises the first oblique fiber and the second oblique fiber, the inclination of the described first oblique fiber and second oblique fiber trend and is 45 degree with the trend of longitudinal fiber respectively toward each other.
12. long-breadth laminted wood as claimed in claim 1 is characterized in that: the length 〉=5m of long-breadth laminted wood.
13. long-breadth laminted wood as claimed in claim 1 is characterized in that: the thickness of described tension enhancement layer is 1.0-2.5mm.
14. one kind by any container bottom board that long-breadth laminted wood is made among the claim 1-13.
15. the manufacture method of a long-breadth laminted wood, it comprises step:
(1) preparation substrate layer;
Preparation tension enhancement layer: fiberfill fibers in the thermoplastic matrix resin, make the longitudinal fiber that has at least one deck to move towards or basically identical consistent with the length direction of substrate layer in the fiber, then it is pressed into stratiform;
(2) the tension enhancement layer is applied ointment or plaster at upper surface and/or the lower surface of substrate layer;
(3) preheating;
(4) hot pressing is fitted, and makes long-breadth laminted wood.
16. the manufacture method of long-breadth laminted wood as claimed in claim 15 is characterized in that: in step (1), preparation thickness is the tension enhancement layer of 1.0-2.5mm.
17. the manufacture method of long-breadth laminted wood as claimed in claim 15 is characterized in that: in step (1), the thermoplastic matrix resin in the tension enhancement layer adopt polyethylene, polypropylene, PETG at least one of them.
18. the manufacture method of long-breadth laminted wood as claimed in claim 15 is characterized in that: in step (1), described substrate layer is made by wood material.
19. the manufacture method of long-breadth laminted wood as claimed in claim 18 is characterized in that: in step (1), described substrate layer is made by non-prime hardwood raw material.
20. the manufacture method of long-breadth laminted wood as claimed in claim 15 is characterized in that: in step (1), make substrate layer after, the substrate layer blemish that makes is filled up equating.
21. the manufacture method of long-breadth laminted wood as claimed in claim 15 is characterized in that: in step (1), fiber adopt in glass fibre, carbon fiber and the aramid fiber at least one of them.
22. the manufacture method of long-breadth laminted wood as claimed in claim 15 is characterized in that: when in step (1), preparing the tension enhancement layer, make the transverse fiber that has at least one deck to move towards or basically identical consistent with the width of substrate layer in the fiber.
23. the manufacture method of long-breadth laminted wood as claimed in claim 15, it is characterized in that: when in step (1), preparing the tension enhancement layer, make the first oblique fiber and the second oblique fiber are arranged in the fiber, the inclination of the described first oblique fiber and second oblique fiber trend and is 60 degree with the trend of longitudinal fiber respectively toward each other.
24. the manufacture method of long-breadth laminted wood as claimed in claim 15, it is characterized in that: when in step (1), preparing the tension enhancement layer, make the first oblique fiber and the second oblique fiber are arranged in the fiber, the inclination of the described first oblique fiber and second oblique fiber trend and is 45 degree with the trend of longitudinal fiber respectively toward each other.
25. the manufacture method of long-breadth laminted wood as claimed in claim 15, it is characterized in that: in step (2), the tension enhancement layer is applied ointment or plaster at upper surface and/or the lower surface of substrate layer by the resin-bonded layer of making through polyethylene and/or the polypropylene of graft modification.
26. the manufacture method of long-breadth laminted wood as claimed in claim 15, it is characterized in that: in step (2), by being main body by polyethylene and/or polypropylene through graft modification, the resin-bonded layer that interpolation linea low density polymer and/or unsaturated hydrocarbons are made is applied ointment or plaster at upper surface and/or the lower surface of substrate layer with the tension enhancement layer.
27. the manufacture method of long-breadth laminted wood as claimed in claim 15 is characterized in that: in step (3), preheat temperature is 180-220 ℃, and be 1-2min preheating time.
28. the manufacture method of long-breadth laminted wood as claimed in claim 15 is characterized in that: in step (4), the temperature that hot pressing is fitted is 90-110 ℃, and the time is 1-2min.
29. the manufacture method of long-breadth laminted wood as claimed in claim 15 is characterized in that: in step (4), the unit pressure that hot pressing is fitted is 4-18kg/cm
2
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|---|---|---|---|---|
| WO2000010804A1 (en) * | 1998-08-24 | 2000-03-02 | Ehrlich Rodney P | Plastic reinforced wood flooring for trailers and method and apparatus for manufacturing same |
| US20060179733A1 (en) * | 2005-02-11 | 2006-08-17 | Havco Wood Products, L.L.C. | Durable wood-plastic composite flooring for trailers |
| CN202810103U (en) * | 2012-03-31 | 2013-03-20 | 嘉兴中集木业有限公司 | Composite floor board |
| CN202828605U (en) * | 2012-10-09 | 2013-03-27 | 江苏奇一科技有限公司 | Continuous fiber reinforced thermoplastic composite container top plate and container using the same |
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Application publication date: 20131009 |