CN104526791A - High-humidity-environment-wooden-building-oriented wood-plastic laminated board for durable structure and manufacturing method of wood-plastic laminated board - Google Patents
High-humidity-environment-wooden-building-oriented wood-plastic laminated board for durable structure and manufacturing method of wood-plastic laminated board Download PDFInfo
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- CN104526791A CN104526791A CN201510001932.2A CN201510001932A CN104526791A CN 104526791 A CN104526791 A CN 104526791A CN 201510001932 A CN201510001932 A CN 201510001932A CN 104526791 A CN104526791 A CN 104526791A
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- wood
- timber
- lamina
- laminate
- plastic
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- 229920003023 plastic Polymers 0.000 title claims abstract description 78
- 239000004033 plastic Substances 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 239000002023 wood Substances 0.000 claims abstract description 76
- 239000000956 alloy Substances 0.000 claims abstract description 38
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 38
- -1 polyethylene Polymers 0.000 claims abstract description 25
- 239000004698 Polyethylene Substances 0.000 claims abstract description 12
- 229920000573 polyethylene Polymers 0.000 claims abstract description 12
- 239000004743 Polypropylene Substances 0.000 claims abstract description 7
- 229920001155 polypropylene Polymers 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 41
- 238000010276 construction Methods 0.000 claims description 20
- 239000002985 plastic film Substances 0.000 claims description 20
- 238000002360 preparation method Methods 0.000 claims description 18
- 238000007731 hot pressing Methods 0.000 claims description 17
- 241000218652 Larix Species 0.000 claims description 15
- 235000005590 Larix decidua Nutrition 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 15
- 229920001864 tannin Polymers 0.000 claims description 15
- 239000001648 tannin Substances 0.000 claims description 15
- 235000018553 tannin Nutrition 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 13
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 229920005610 lignin Polymers 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000005469 granulation Methods 0.000 claims description 6
- 230000003179 granulation Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000006424 Flood reaction Methods 0.000 claims description 5
- 229940043430 calcium compound Drugs 0.000 claims description 5
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 5
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000011833 salt mixture Substances 0.000 claims description 5
- 150000003460 sulfonic acids Chemical class 0.000 claims description 5
- 244000050510 Cunninghamia lanceolata Species 0.000 claims description 4
- 244000166124 Eucalyptus globulus Species 0.000 claims description 3
- 241000018650 Pinus massoniana Species 0.000 claims description 3
- 235000011609 Pinus massoniana Nutrition 0.000 claims description 3
- 241000219000 Populus Species 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 abstract description 6
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 239000002356 single layer Substances 0.000 abstract 6
- 239000011155 wood-plastic composite Substances 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 229920001587 Wood-plastic composite Polymers 0.000 description 9
- 230000002421 anti-septic effect Effects 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000036541 health Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 241000607479 Yersinia pestis Species 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011864 timber preservative Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000124033 Salix Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 231100000734 genotoxic potential Toxicity 0.000 description 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, 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
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, 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
- B27K2240/00—Purpose of the treatment
- B27K2240/20—Removing fungi, molds or insects
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/05—5 or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/544—Torsion strength; Torsion stiffness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/752—Corrosion inhibitor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/764—Insect repellent
-
- 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
- B32B2607/00—Walls, panels
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a high-humidity-environment-wooden-building-oriented wood-plastic laminated board for a durable structure and a manufacturing method of the wood-plastic laminated board. The laminated board comprises wood single-layer plates and macromolecule plastic alloy, and the macromolecule plastic alloy is arranged in the wood single-layer plates and among the multiple wood single-layer plates; the wood single-layer plates are low-density fast-growing wood single-layer plates with the thicknesses ranging from 1 mm to 3 mm; the macromolecule plastic alloy is composed of polyethylene with the melting temperature ranging from 130 DEG C to 140 DEG C and polypropylene with the melting temperature ranging from 160 DEG C to 170 DEG C, the mass ratio of the polyethylene to the polypropylene ranges from 80:20 to 50:50, and the mass ratio of the wood single-layer plates to the macromolecule plastic alloy ranges from 70:30 to 30:70. The high-humidity-environment-wooden-building-oriented wood-plastic laminated board can be used for wall boards and roof boards for high-humidity environment wooden buildings, or can be used as laminated plates of dimension stocks and glued timber structures.
Description
Technical field
The present invention relates to structural engineering technical field, be specially a kind of permanent seal cooling structure wood towards high humidity environment Wood construction and mould laminate and preparation method thereof.
Background technology
Along with the progress of industrial technology and the raising of living standards of the people, in building, the demands such as public building, outdoor gardening view engineering are constantly increased.In recent years, China introduces Modern Wood Construction advanced manufacturing technology and equipment from the developed country such as American-European, Japanese, has promoted the development of China's timber buildings further.But because timber belongs to natural biomass composite, the chemical composition accounting for its mass percent more than 70% is all polymerized by glucose unit and forms, in addition, wood internal is often containing a certain amount of moisture, most timber demonstrates faintly acid, and the cellular structure of timber makes it contain a large amount of oxygen etc., biology all for infecting timber provides life condition, therefore, without the material that appropriate design and pretreatment are directly used, be vulnerable to insect, the infringement infection variable color that fungi etc. are biological, rot to reduce quality, even scrap, in China East China, particularly like this under the coastal outdoor environmental conditions of the warm and moists such as south China.
Correspondingly, the forest reserves accumulation of China, and the quantity delivered of timber but cannot meet the demand of timber industry material, after China's timber buildings recovery especially in the last few years, timber supply and demand contradiction will strengthen day by day.And the fast-growing woods such as willow, China fir, eucalyptus that China is common, because fast growing wood growth cycle is short, variability is large, material is loosened, and voidage is large, and density is low, mechanical property is low, antiseptic property is poor, therefore fast growing wood is all do wood-based plate, papermaking, packaging material, building template etc. all the time, and less in furniture and building structural element, and its range of application is very restricted again.Current China wood industry faces and has on the one hand a large amount of fast-growing woods timber cannot efficiency utilization, the timber but spending a large amount of foreign exchange import external on the other hand.Therefore, carrying out modification by timberphysics, chemistry or method that the two haves both at the same time to domestic fast-growing woods timber, improve mechanics and the antiseptic insect-repelling performance of material, meet the function needs of market to material, is the effective measures solving timber supply and demand contradiction.
Conventional wood preservation process, uses anticorrisive agent to realize by adding to wood internal, but containing toxic chemicals in timber preservative, is therefore " double-edged sword ", while the effect of performance wood protection, can cause potential harm to human and environment.Because the inherent defect of traditional timber anticorrisive agent itself and people are to its unreasonable use, along with the mankind are to the growing interest of environmental problem, timber preservative in use creates a series of pollution problem, as environmental pollution, the common concern some harmful effects such as biological genotoxic potential having been caused to people.
In addition, wood plastic composite is prepared by the form of timber and high molecule plastic compound, make material have good dimensional stability, antiseptic insect-repelling performance, be also prolonging wood using life, improve product military service quality, embody the effective measures of the ecological property of Wood construction, suitability and security.
Wood plastic composite (wood-plastics composites, be called for short WPC) be via plastic processing Compound Machining or the material processed further or product by one or more cellulosic materials and one or more thermoplastics, there is anticorrosion, moistureproof, part degradability, environmental pollution is little, cost is low, water imbibition is little, good mechanical performance, anti-aging, good stability of the dimension, the advantage such as do not ftracture, and has again the processability of similar wood.
But the wood plastic composite overwhelming majority adopts and extrudes processing technology, although product can one-shot forming, limited width (usually at below 150cm, minority product is at below 40cm), is not suitable for the place needing to use large-breadth plates; Surface adopts embossing or mode of printing simulation wood grain, and woodiness touch is not strong; The wood raw material of wood plastic composite is by timber mechanical crushing in addition, more shaping with high molecule plastic mixing granulation.With " a kind of production method (patent No. 201210324577.9) of wood plastic composite ", " a kind of wood plastic composite and production method (patent No. 201110437199.0) thereof ", " a kind of flame-retardant smoke-suppression cabo powder based wood-plastic composite material and preparation method thereof (patent No. 201110355179.9) ", the preparation method of many patented products such as " preparation methods (patent No. 201210056055.5) of Wood-plastic composite section bar ", lumber fibre is all caused to be cut off in a large number, the too much fibrous structure destroying timber, even if by the mode improving product density, its mechanical property is still lower, the needs of Wood construction material in structural behaviour can not be met, surface loses the grain of wood and tone, the demand of timber structure material in decorative appearance can not be met, only can be used for mechanical property and the less demanding field of decorative effect.And patent " a kind of formaldehyde-free plywood and preparation method thereof (application number 201310080167.9) " is in the mode of plastic sheeting compound hot pressing alternate with timber lamina, product has the appearance such as the grain of wood, but the antiseptic insect-repelling performance of product and mechanical property deficiency.
And it is existing for timber structure roofing or flooring and materials for wall, in order to the structural panel of clad can, mainly contain the excellent in mechanical performance such as oriented wood chipboard OSB, glued board, laminated veneer lumber, the method that its antiseptic property also can pass through to spray in advance the lamina of thinner thickness or flood anticorrisive agent reaches, but the use of the anticorrisive agent of this kind of glued board heavy metal, larger to the load of environment, also harmful effect is had to the health of people, it uses the adhesive containing formaldehyde components, has the release of a large amount of free formaldehyde and cause environmental pollution in production and use procedure.The World Health Organization announces in " World Health Report in 2002 ", clearly room air pollution is classified as one of ten large factors threatening human health, and has determined that formaldehyde is strong carcinogenic substance.
Summary of the invention
The object of this invention is to provide a kind of permanent seal cooling structure wood towards high humidity environment Wood construction and mould laminate and preparation method thereof, solve conventional wooden composite and contain toxic substance, the anticorrisive agent that conventional anticorrosive wood contains has negative effect to environment and the mankind, and the preparation technology of Traditional Wood plastic composite materials causes product cannot accomplish the deficiency that exterior decorative effect, antiseptic insect-repelling performance, mechanical property are taken into account.
The technical solution used in the present invention is: laminate moulded by a kind of permanent seal cooling structure wood towards high humidity environment Wood construction, this laminate comprises timber lamina and high molecular plastic alloy, and described high molecular plastic alloy is arranged in timber lamina and between polylith timber lamina;
Described timber lamina is the low-density fast growing wood veneer of thickness within the scope of 1-3mm;
Described high molecular plastic alloy is made up of the polypropylene within the scope of the polyethylene of melt temperature respectively within the scope of 130-140 DEG C and 160-170 DEG C, the scope of polyethylene and polyacrylic mass ratio is 80:20 ~ 50:50, and the scope of the mass ratio of described timber lamina and high molecular plastic alloy is 70:30 ~ 30:70.
As preferably, described timber lamina is domestic quick growth poplar wood, China fir, masson pine or Eucalyptus.
A preparation method for laminate moulded by the above-mentioned wood of the permanent seal cooling structure towards high humidity environment Wood construction, comprises the following steps:
(1) raw material prepare
1. by timber lamina moisture control in 10 ~ 25% scopes;
2. thermal plastic high polymer plastic alloy makes plastic alloy sheet material according to after predetermined mass ratio granulation, and thickness is 0.2 ~ 0.6mm;
3. configure the aqueous solution of larch tannin and lignin sulfonic acid salt mixture, wherein the mass percentage of calcium lignosulfonate, larch tannin and water is respectively 5%, 10% and 85%;
4. the number of plies of timber lamina and high molecule plastic sheet material is according to timber and plastic thickness and density, and laminate target thickness and density calculation are determined;
(2) timber lamina pretreatment
Timber lamina is placed in the aqueous solution of larch tannin and lignin sulfonic acid calcium compound and floods, then the timber lamina after dipping is dried to moisture content in 10 ~ 15% scopes;
(3) laminate preparation moulded by wood
1. volatile nonpoisonous organic solvent is adopted to clean the dust of removing high molecule plastic sheet surface and other has the enriched substance of negative effect;
2. by alternate with high molecule plastic sheet material for timber lamina superimposed, composition lamina and plastics complex configuration; When stressing the mechanical property utilizing some principal direction in sheet material face, the texture of timber is the configuration of rift grain direction; When stressing to utilize the mechanical property of the vertical both direction of primary and secondary in sheet material face, the texture of timber is adjacent layer timber lamina arranged perpendicular;
3. be placed in hot press heating platen gap by the laminate that timber lamina and high molecule plastic sheet material form and carry out hot pressing, hot pressing temperature is 160 ~ 165 DEG C, and hot pressing time is 1.0-1.5min/mm.
Laminate moulded by resistant structure type wood towards high humidity environment Wood construction involved in the present invention, the wooden lamina changed by whole and high molecular plastic alloy form, the lower partial melting of fusing point in high molecular plastic alloy is made to infilter wood internal by controlling hot pressing temperature, the softening stream exhibition of the part that fusing point is higher forms continuous film between adjacent layer timber lamina, the high molecule plastic be melting between lumber layer intralamellar part and place's timber laminate has mechanical connection, this connection function and the high molecule plastic being melting into wood internal play humidification to timber, high molecule plastic between lamina plays molding bonded effect to laminate, simultaneously all high molecule plastics play again and improve product pest control and anticorrosion, the effect of dimensional stability.
Laminate of the present invention has solid wood visual appearance, environmental friendliness, protection against the tide is not yielding, antiseptic insect-repelling performance is controlled, containing have environment and people the heavy metal anticorrosive agent of burden and adhesive, can the feature such as Partial digestion recycling, excellent in mechanical performance, can be used for high humidity environment Wood construction wallboard and roof boarding, or be used as the laminate of dimension stock, laminated structure part.
Beneficial effect:
1. laminate of the present invention is owing to have employed whole the timber lamina changed, so there is the visuality of solid wood outward appearance from sheet material in appearance, the high molecular plastic alloy adopted is odorless, tasteless, nontoxic white translucent solid material, does not change texture and the tone of timber;
2. the high molecular plastic alloy water-tolerant contained in lamina in laminate of the present invention, and the water absorption rate of plastics is less than 0.01%, the laminate moisture resistance therefore especially formed, not yielding;
3. the high molecule plastic contained in laminate of the present invention has good pest control and anticorrosion performance, without the need to adding conventional heavy metal anticorrosive agent environment and people being had to burden, and the antiseptic property of sheet material controls by the usage ratio of plastics, therefore, Product environment friendly is high and antiseptic property good;
4. laminate of the present invention sprawled under high temperature and high pressure effect by high molecule plastic between timber lamina, partial melting infiltration and form chemical bond and molding bonded, without the need to adding conventional macromolecule adhesive environment and people being had to burden, therefore product is environmentally friendly
5. laminate of the present invention is made up of the timber of spontaneous growth and high molecule plastic, and wherein Timber sections can natural degradation, high molecule plastic part recoverable;
6. the high molecule plastic contained in the timber lamina of laminate top layer of the present invention is nonpolarity, and pollutant is adhesive tape not easily, and product self-cleaning is good;
7. be filled with high molecule plastic in the timber lamina in laminate of the present invention, plastics can play the effect of fanization enhancing to timber, the excellent in mechanical performance of sheet material, can be used as structural elements high to mechanical property requirements in Wood construction.
Accompanying drawing explanation
Fig. 1 moulds laminate schematic diagram towards the permanent seal cooling structure wood of high humidity environment Wood construction.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
A laminate moulded by permanent seal cooling structure wood towards high humidity environment Wood construction, and this laminate comprises timber lamina and high molecular plastic alloy, and described high molecular plastic alloy is arranged in timber lamina and between polylith timber lamina;
As shown in Figure 1, laminate comprises odd-level timber lamina 1, even level timber lamina 2, high molecule plastic 4 between timber lamina inner macromolecule plastics 3 and timber lamina.
Described timber lamina is the low-density fast growing wood veneer of thickness at 1mm; Described timber lamina is domestic quick growth poplar wood; Described high molecular plastic alloy is made up of at the polypropylene of the polyethylene of 130-140 DEG C and 160-170 DEG C respectively melt temperature, and polyethylene and polyacrylic mass ratio are 80:20, and the mass ratio of described timber lamina and high molecular plastic alloy is 70:30.
A preparation method for laminate moulded by the above-mentioned wood of the permanent seal cooling structure towards high humidity environment Wood construction, comprises the following steps:
(1) raw material prepare
1. by timber lamina moisture control 10%;
2. thermal plastic high polymer plastic alloy makes plastic alloy sheet material according to after predetermined mass ratio granulation, and thickness is 0.3mm;
3. configure the aqueous solution of larch tannin and lignin sulfonic acid salt mixture, wherein the mass percentage of calcium lignosulfonate, larch tannin and water is respectively 5%, 10% and 85%;
4. the number of plies of timber lamina and high molecule plastic sheet material is according to timber and plastic thickness and density, and laminate target thickness and density calculation are determined;
(2) timber lamina pretreatment
Timber lamina is placed in the aqueous solution of larch tannin and lignin sulfonic acid calcium compound and floods, then the timber lamina after dipping is dried to moisture content 10%;
(3) laminate preparation moulded by wood
1. volatile nonpoisonous organic solvent is adopted to clean the dust of removing high molecule plastic sheet surface and other has the enriched substance of negative effect;
2. by alternate with high molecule plastic sheet material for timber lamina superimposed, composition lamina and plastics complex configuration, wherein the texture of timber is the configuration of rift grain direction;
3. be placed in hot press heating platen gap by the laminate that timber lamina and high molecule plastic sheet material form and carry out hot pressing, hot pressing temperature is 160 DEG C, and hot pressing time is 1.5min/mm.
Embodiment 2
A laminate moulded by permanent seal cooling structure wood towards high humidity environment Wood construction, and this laminate comprises timber lamina and high molecular plastic alloy, and described high molecular plastic alloy is arranged in timber lamina and between polylith timber lamina;
Described timber lamina is the low-density fast growing wood veneer of thickness at 2mm; Described timber lamina is domestic fast-growing Chinese fir; Described high molecular plastic alloy is made up of at the polypropylene of 130-140 DEG C of polyethylene and 160-170 DEG C respectively melt temperature, and polyethylene and polyacrylic mass ratio are 60:40, and the mass ratio of described timber lamina and high molecular plastic alloy is 50:30.
A preparation method for laminate moulded by the above-mentioned wood of the permanent seal cooling structure towards high humidity environment Wood construction, comprises the following steps:
(1) raw material prepare
1. by timber lamina moisture control 15%;
2. thermal plastic high polymer plastic alloy makes plastic alloy sheet material according to after predetermined mass ratio granulation, and thickness is 0.8mm;
3. configure the aqueous solution of larch tannin and lignin sulfonic acid salt mixture, wherein the mass percentage of calcium lignosulfonate, larch tannin and water is respectively 5%, 10% and 85%;
4. the number of plies of timber lamina and high molecule plastic sheet material is according to timber and plastic thickness and density, and laminate target thickness and density calculation are determined;
(2) timber lamina pretreatment
Timber lamina is placed in the aqueous solution of larch tannin and lignin sulfonic acid calcium compound and floods, then the timber lamina after dipping is dried to moisture content 12%;
(3) laminate preparation moulded by wood
1. volatile nonpoisonous organic solvent is adopted to clean the dust of removing high molecule plastic sheet surface and other has the enriched substance of negative effect;
2. by alternate with high molecule plastic sheet material for timber lamina superimposed, composition lamina and plastics complex configuration; When stressing the mechanical property utilizing some principal direction in sheet material face, the texture of timber is the configuration of rift grain direction; When stressing to utilize the mechanical property of the vertical both direction of primary and secondary in sheet material face, the texture of timber is adjacent layer timber lamina arranged perpendicular;
3. be placed in hot press heating platen gap by the laminate that timber lamina and high molecule plastic sheet material form and carry out hot pressing, hot pressing temperature is 162 DEG C, and hot pressing time is 1.2min/mm.
Embodiment 3
A laminate moulded by permanent seal cooling structure wood towards high humidity environment Wood construction, and this laminate comprises timber lamina and high molecular plastic alloy, and described high molecular plastic alloy is arranged in timber lamina and between polylith timber lamina;
Described timber lamina is the low-density fast growing wood veneer of thickness at 3mm; Described timber lamina is domestic fast-growing masson pine;
Described high molecular plastic alloy is made up of at the polypropylene of the polyethylene of 130-140 DEG C and 160-170 DEG C respectively melt temperature, and polyethylene and polyacrylic mass ratio are 50:50, and the mass ratio of described timber lamina and high molecular plastic alloy is 30:70.
A preparation method for laminate moulded by the above-mentioned wood of the permanent seal cooling structure towards high humidity environment Wood construction, comprises the following steps:
(1) raw material prepare
1. by timber lamina moisture control 25%;
2. thermal plastic high polymer plastic alloy makes plastic alloy sheet material according to after predetermined mass ratio granulation, and thickness is 1.0mm;
3. configure the aqueous solution of larch tannin and lignin sulfonic acid salt mixture, wherein the mass percentage of calcium lignosulfonate, larch tannin and water is respectively 5%, 10% and 85%;
4. the number of plies of timber lamina and high molecule plastic sheet material is according to timber and plastic thickness and density, and laminate target thickness and density calculation are determined;
(2) timber lamina pretreatment
Timber lamina is placed in the aqueous solution of larch tannin and lignin sulfonic acid calcium compound and floods, then the timber lamina after dipping is dried to moisture content 15%;
(3) laminate preparation moulded by wood
1. volatile nonpoisonous organic solvent is adopted to clean the dust of removing high molecule plastic sheet surface and other has the enriched substance of negative effect;
2. by alternate with high molecule plastic sheet material for timber lamina superimposed, composition lamina and plastics complex configuration, wherein the texture of timber is adjacent layer timber lamina arranged perpendicular;
3. be placed in hot press heating platen gap by the laminate that timber lamina and high molecule plastic sheet material form and carry out hot pressing, hot pressing temperature is 165 DEG C, and hot pressing time is 1.0min/mm.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each part not clear and definite in the present embodiment is realized.
Claims (3)
1. a laminate moulded by the permanent seal cooling structure wood towards high humidity environment Wood construction, it is characterized in that: this laminate comprises timber lamina and high molecular plastic alloy, and described high molecular plastic alloy is arranged in timber lamina and between polylith timber lamina;
Described timber lamina is the low-density fast growing wood veneer of thickness within the scope of 1-3mm;
Described high molecular plastic alloy is made up of the polypropylene within the scope of the polyethylene of melt temperature respectively within the scope of 130-140 DEG C and 160-170 DEG C, the scope of polyethylene and polyacrylic mass ratio is 80:20 ~ 50:50, and the scope of the mass ratio of described timber lamina and high molecular plastic alloy is 70:30 ~ 30:70.
2. laminate moulded by the permanent seal cooling structure wood towards high humidity environment Wood construction according to claim 1, it is characterized in that: described timber lamina is domestic quick growth poplar wood, China fir, masson pine or Eucalyptus.
3. a preparation method for laminate moulded by the wood of the permanent seal cooling structure towards high humidity environment Wood construction described in claim 1 or 2, comprises the following steps:
(1) raw material prepare
1. by timber lamina moisture control in 10 ~ 25% scopes;
2. thermal plastic high polymer plastic alloy makes plastic alloy sheet material according to after predetermined mass ratio granulation, and thickness is 0.2 ~ 0.6mm;
3. configure the aqueous solution of larch tannin and lignin sulfonic acid salt mixture, wherein the mass percentage of calcium lignosulfonate, larch tannin and water is respectively 5%, 10% and 85%;
4. the number of plies of timber lamina and high molecule plastic sheet material is according to timber and plastic thickness and density, and laminate target thickness and density calculation are determined;
(2) timber lamina pretreatment
Timber lamina is placed in the aqueous solution of larch tannin and lignin sulfonic acid calcium compound and floods, then the timber lamina after dipping is dried to moisture content in 10 ~ 15% scopes;
(3) laminate preparation moulded by wood
1. volatile nonpoisonous organic solvent is adopted to clean the dust of removing high molecule plastic sheet surface and other has the enriched substance of negative effect;
2. by alternate with high molecule plastic sheet material for timber lamina superimposed, composition lamina and plastics complex configuration; When stressing the mechanical property utilizing some principal direction in sheet material face, the texture of timber is the configuration of rift grain direction; When stressing to utilize the mechanical property of the vertical both direction of primary and secondary in sheet material face, the texture of timber is adjacent layer timber lamina arranged perpendicular;
3. be placed in hot press heating platen gap by the laminate that timber lamina and high molecule plastic sheet material form and carry out hot pressing, hot pressing temperature is 160 ~ 165 DEG C, and hot pressing time is 1.0-1.5min/mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113498371A (en) * | 2020-06-15 | 2021-10-12 | 弗里茨科尔有限两合公司 | Wood composite block, semitransparent wood veneer and production method thereof |
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| WO1987005639A1 (en) * | 1986-03-11 | 1987-09-24 | Fiberlok, Inc. | Fiberous batt and method for producing such |
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| CN113498371A (en) * | 2020-06-15 | 2021-10-12 | 弗里茨科尔有限两合公司 | Wood composite block, semitransparent wood veneer and production method thereof |
| CN113498371B (en) * | 2020-06-15 | 2022-10-28 | 弗里茨科尔有限两合公司 | Wood composite block, semitransparent wood veneer and production method thereof |
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