CN100392012C - Wood plastic composite material building mould board, its preparation method and use - Google Patents
Wood plastic composite material building mould board, its preparation method and use Download PDFInfo
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- CN100392012C CN100392012C CNB2005100218337A CN200510021833A CN100392012C CN 100392012 C CN100392012 C CN 100392012C CN B2005100218337 A CNB2005100218337 A CN B2005100218337A CN 200510021833 A CN200510021833 A CN 200510021833A CN 100392012 C CN100392012 C CN 100392012C
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Abstract
This invention discloses a kind of wood-plastic composite materials for construction template and its preparation methods and purposes. It belongs to building materials area. Against poor toughness, small strength and high cost defects of existing technologies, the main materials of this invention are PVC resin and/or plastic (new materials or waste materials) and wood fiber powder, the second materials are calcium power PE resins, short glass fiber, then adds the assistant, through mixing, heating, agitating, extrusion to matrix and cooling to shape, cutting steps to made into templates. It can increase the strength of plate by increasing various forms of reinforced structure in the process of preparation. It can be used for construct template of concrete processing. This invention can be recycled for several times, environmental protected, save resources and of low cost; the template are wear resistant and defend worms, non-absorbent, and hard to deform, with good mechanical properties, low coefficient of thermal conductivity, anti-acid and alkali.
Description
Technical field
The present invention relates to a kind of building template of wood plastic composite, specifically, relate to a kind of building template that is used for the concrete processing treatment, belong to building material field.
Background technology
Little rule plate for building (steel membrane plate) is banned in Ministry of Construction's dispatch, and what replace on the market now mainly is products such as the multiple lamina membranacea of bamboo offset plate, bamboo glue, wooden plywood, the multiple lamina membranacea of wooden gummed.But bamboo matter and wooden building template are met the water stratification bulge in construction, acid-alkali-corrosive-resisting not, access times few (best multiple lamina membranacea access times are also many below 10 times), comprehensive cost height (about 6 yuan/m
2Inferior), and can not recycling, the huge waste on timber, the bamboo timber resource caused.
Wood plastic composite is a kind of novel material that rises in recent years, and it is that the main raw material processing and fabricating forms with plastics, wood fiber powder, and is of many uses.Application number is 02160123.2 the Chinese patent that is called " a kind of wood plastic composite and its production and application ", application number is 01119861.3 the Chinese patent application that is called " a kind of plastic-wood material building template and preparation method thereof ", application number is 02157950.4 the Chinese patent application that is called " wood plastic composite and preparation method thereof; the sheet material of wood plastic composite and sheet preparation method ", and Document Number is the U.S. Patent application of 20040126515 by name " Wood-plastic compositehaving improved strength " or the like, all is the technology in this field.But poor toughness, the Young's modulus of the wood plastic composite template of prior art is low, undercapacity, wear no resistance, resistance toheat is lower, temperature distortion is big, access times are few, can't reach the requirement as building template.The at present also sophisticated without comparison wood as building template is moulded composite prod on the domestic and international market.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide that a kind of cost is low, good toughness, intensity height, good, the anti-strong acid and strong base of wear resistance, temperature distortion is little, access times are many Wood plastic composite material building mould board, and provide its preparation method and main application.
Wood plastic composite material building mould board of the present invention, its composition comprises major ingredient, auxiliary material and auxiliary agent, major ingredient is a polyvinyl chloride resin or/and PVC plastics (virgin material or waste and old material), wood fiber powder, auxiliary material is calcium powder, PE resin, short glass fiber, auxiliary agent is stablizer, processing aid, impact modifier, product internal lubricant, softening agent, product external surfaces lubricant, and its part by weight is as follows:
In the major ingredient, (if polyvinyl chloride resin or PVC plastics are virgin materials, content can be on the low side or/and the PVC plastic content accounts for the 30-60% of major ingredient for polyvinyl chloride resin; If the PVC plastics are the waste and old material that reclaim, content then should be higher, because the PVC waste or used plastics has just added the filling raw material when finished product last time, and after repeatedly extruding and using, reduced the switching performance of resin, so will heighten ratio when using the PVC waste or used plastics, reach certain switching performance), the wood fibre powder content accounts for the 40-70% of major ingredient;
In the auxiliary material, calcium powder content accounts for the 6-15% of major ingredient weight, and the PE resin content accounts for the 2-8% of major ingredient weight, and short glass fiber content accounts for the 2-6% of major ingredient weight;
In the auxiliary agent, the 2-3% of stabilizer comprises major ingredient and auxiliary material gross weight; Processing aid accounts for the 0.5-1% of major ingredient and auxiliary material gross weight, in order to improve processing characteristics, to improve plasticizing effect; Impact modifier accounts for the 1-2% of major ingredient and auxiliary material gross weight, in order to improve anti-impact force; The product internal lubricant accounts for the 0.5-1% of major ingredient and auxiliary material gross weight; Softening agent accounts for the 1-1.5% of major ingredient and auxiliary material gross weight, in order to improve plasticizing effect; The product external surfaces lubricant accounts for the 1-1.5% of major ingredient and auxiliary material gross weight.
Above-mentioned wood fiber powder can be the mixture of powdered rice hulls, peanut hull meal, straw powder, corn cob meal, plant stem-leaf powder, sawdust, wood shavings powder, waste paper powder or above multiclass powder.
Above-mentioned short glass fiber diameter is 4-7 μ m, long 20-30 μ m.
In order to make product strength better, the preferred Paris white of the calcium powder of use.
Aforementioned stable agent, processing aid, impact modifier, product internal lubricant, softening agent, product external surfaces lubricant be first-selected compound lead, acrylate copolymer (ACR), chlorinatedpolyethylene, stearic acid, dimixo-octyl phthalate (DOP), polyethylene wax respectively.
Above-mentioned Wood plastic composite material building mould board can be a solid slab, can be solid stiffened plate, can be the hollow stiffened plate.The structure of solid stiffened plate be outside being the wood plastic composite solid slab of flats rectangular parallelepiped, single surface arrangement has the wood plastic composite rib, its section is concave-convex type.The structure of hollow stiffened plate is to have some cavitys in the wood plastic composite template inside that is the flats rectangular parallelepiped, cavity is formed by the interval between the wood plastic composite rib of template inside, and the cavity section shape can be that rectangle, square, circle, ellipse etc. are multiple.The two-sided concrete face that all can water of hollow stiffened plate uses.The rib uniform distribution of solid stiffened plate and hollow stiffened plate, degree of closing are according to the practical application request adjustment, and close more then intensity is big more.
The preparation method of above-mentioned Wood plastic composite material building mould board, adopt following processing step (referring to Fig. 7):
The first step: choose major ingredient, auxiliary material and auxiliary agent by weight, major ingredient is chosen PVC plastics 30-60 part, and (as previously mentioned, if the PVC plastics are virgin materials, content can be on the low side; If the PVC plastics are the waste and old material that reclaim, content then should be higher), pulverize, grind, dry wood fiber powder 40-70 part, totally 100 parts of major ingredients; Auxiliary material is chosen calcium powder, the PE resin that accounts for major ingredient weight 2-8% that accounts for major ingredient weight 6-15%, the short glass fiber that accounts for major ingredient weight 2-6%; Auxiliary agent is chosen stablizer, the processing aid that accounts for major ingredient and auxiliary material gross weight 0.5-1%, the impact modifier that accounts for major ingredient and auxiliary material gross weight 1-2%, the product internal lubricant that accounts for major ingredient and auxiliary material gross weight 0.5-1%, the softening agent that accounts for major ingredient and auxiliary material gross weight 1-1.5% that accounts for major ingredient and auxiliary material gross weight 2-3%, the product external surfaces lubricant that accounts for major ingredient and auxiliary material gross weight 1-1.5%.
Second step: above-mentioned raw materials is mixed, put into gas barrier and separate charging mouth, automatically in the hot mixing tank of the cold and hot mixer of discharging and high-speed stirring, be heated to 110-130 ℃, stirred 20-40 minute, obtain wood and mould compound, again this wood is moulded in the cold mixing tank that compound drains into cold and hot mixer, stirred and be cooled to 40-60 ℃;
The 3rd step: above-mentioned wood is moulded compound add extrusion main unit, be expressed into mould, calendering formation, deburring, cutting or vacuum cooling moulding, cutting again obtains the Wood plastic composite material building mould board of certain size size.
In the preparation of this Wood plastic composite material building mould board, used wood fiber powder can be the mixture of powdered rice hulls, peanut hull meal, straw powder, corn cob meal, plant stem-leaf powder, sawdust, wood shavings powder, waste paper powder or above-mentioned powder, granularity is the 40-80 order after pulverizing, grinding, and moisture content is less than 3% after the drying; Used calcium powder is a Paris white, and granularity is the 500-800 order; Used short glass fiber diameter is 4-7 μ m, long 20-30 μ m; Used stablizer, processing aid, impact modifier, product internal lubricant, softening agent, product external surfaces lubricant be first-selected compound lead, acrylate copolymer (ACR), chlorinatedpolyethylene (CPE), stearic acid, dioctyl phthalate (DOP) (DOP), polyethylene wax respectively.
In this preparation method's the 3rd step, extrusion main unit is the two main frames of twin screw awl, and the exhaust humidity-discharging device is arranged; Use different moulds can form solid slab or solid stiffened plate or hollow stiffened plate, the solid slab mould is a sheet mouth mould, and the mould of solid stiffened plate and hollow stiffened plate is the mould that matches with the product section; Solid slab adopts three roll-ins to prolong moulding, and solid stiffened plate and hollow stiffened plate adopt the vacuum cooling moulding.
Solid slab through mould prolong to three roll-ins be molded into cooling table after two pitch cutting deburrings, after the metering instrument was according to desired length size fixed length, horizontal more single pitch cutting was cut to finished product and rolls off the production line.Solid stiffened plate and hollow stiffened plate are after arriving Vacuum shaping platform typing cooling behind the stock mould, after the metering instrument was according to desired length size fixed length, horizontal more single pitch cutting was cut to finished product and rolls off the production line.
According to concrete different demands and the applying working condition of using of building template, can adjust product width, thickness, length, rib size, hollow spacing, to reach varying strength, toughness, adapt to different purposes.
Wood is moulded the mould system of extruding and is not used traditional stock mould, water cooling, vacuum water tank in the PVC plastics-steel shapes for door and window mould system have been used for reference, used for reference the design concept of the die head exit place cooling plate in the PVC foaming mould system, and consider following situation: 1. because extruded product contains a certain amount of moisture, therefore can not there be the space to exist between die head and the typing cover, otherwise will influence the surface quality of goods, this has caused, and back pressure raises in the die head; 2. directly equip one or more cooling plate on the die head; 3. for the mould of hollow material, the axle core of its inside is extended down to the end cooling plate; Need not do typing, from die head directly into cooling off vacuum eddy current water tank or the water tank.
In the production process of this building template, packing, warehouse-in that inspection after construction is qualified; Underproof waste product and tankage can be mixed together with the waste and old wood plastic composite of recovery, torpedo, pulverize, and reprocessing utilizes.
Wood plastic composite material building mould board of the present invention can be applicable to comprise in the concrete construction: the concrete construction of shear wall, vertical wallboard, horizontal flooring, cylinder mold, special-shaped mould, bridge, dam, tunnel, beam column.
The present invention has optimized the prescription and the structure of wood plastic composite template: add short glass fiber, increase toughness and intensity; Add calcium powder, improve intensity; Add a small amount of PE resin, under the prerequisite of controlling cost, increase the pliability of PVC, and promote that short glass fiber is compatible with other raw material; Change the plate armature of prior art into reinforced structure, further improved intensity and toughness.These improvement make the wood plastic composite template can be applied to building field, and have increased work-ing life, have reduced cost.
Process industry park, applicant place and applicant are in the test of many times and the detection of Pekinese associated agency, and the present invention shows following beneficial effect:
1. product is not afraid of and is damaged by worms, long fungi, and anti-strong acid and strong base, the branch that do not absorb water, not yielding, wear-resisting, corrosion resistant, intensity height, good toughness.
2. good mechanical property: can be made into the template of different shape, size, can saw, can dig, can follow closely, use easy to maintenance.
3. temperature distortion is little, and thermal conductivity is low, is beneficial to the winter construction insulation.
4. product cost is low: the average about 2 yuan/m of use cost
2Inferior, be 1/3rd of steel membrane plate, bamboo offset plate, wooden plywood, greatly reduce construction costs.
5. economize on resources: can make full use of waste resources such as rice husk, Pericarppium arachidis hypogaeae, straw, sawdust, adding proportion substitutes the bamboo and wood material at more than 40% of major ingredient, reduces the felling to tree, bamboo.
6. environmental protection: product can be after using more than 30 times, recycling.
7. easy to use: smooth surface, smooth, be easy to demoulding, and make the surface cancellation secondary plastered work that waters behind the concrete, shorten the fitment operation duration, realize clear water mould for building.
Description of drawings
Fig. 1 is the solid slab sectional view.
Fig. 2 is solid stiffened plate sectional view.
Fig. 3 is that the cavity section is rectangular hollow stiffened plate sectional view.
Fig. 4 is that the cavity section is foursquare hollow stiffened plate sectional view.
Fig. 5 is that the cavity section is circular hollow stiffened plate sectional view.
Fig. 6 is that the cavity section is oval-shaped hollow stiffened plate sectional view.
Fig. 7 is the process flow sheet of preparation Wood plastic composite material building mould board.
Number in the figure is as follows:
1 solid slab; 2 ribs; 3 cavitys.
Embodiment
Embodiment one
Collect, sort 60 parts of rice husks by weight, granularity is the 40-80 order after pulverizing, grinding, and moisture content is less than 3% after the drying; Choose 40 parts of the brand-new plastics powders of PVC by weight, choosing granularity is 11 parts of 500-800 purpose Paris whites, 5 parts of PE resins, diameter 5 μ m, 4 parts of the short glass fibers of long 25 μ m.
Auxiliary agent chooses the compound lead that accounts for major ingredient and auxiliary material gross weight 3%, the acrylate copolymer (ACR) that accounts for major ingredient and auxiliary material gross weight 0.5%, the chlorinatedpolyethylene (CPE) that accounts for major ingredient and auxiliary material gross weight 1.5%, the stearic acid that accounts for major ingredient and auxiliary material gross weight 1%, account for the dioctyl phthalate (DOP) (DOP) of major ingredient and auxiliary material gross weight 1.2%, account for the polyethylene wax of major ingredient and auxiliary material gross weight 1.3%.
Above-mentioned major ingredient, auxiliary material, auxiliary agent are mixed, put into gas barrier and separate charging mouth, automatically in the hot mixing tank of the cold and hot mixer of discharging and high-speed stirring, be heated to 110 ℃, stirred 40 minutes, obtain wood and mould compound, again this wood is moulded in the cold mixing tank that compound drains into cold and hot mixer, stirred and be cooled to 40 ℃.Above-mentioned wood is moulded the compound adding has φ 92/188 conical double-screw of exhaust humidity-discharging device to bore twin-engined extrusion main unit, machine barrel has 160 ℃, 165 ℃, 170 ℃, 175 ℃, 170 ℃, 170 ℃ six sections heating zone, melt pressure 5-10Mpa, melt temperature 160-165 ℃, screw speed 15-20rpm.Forcing machine connects the rack-style extrusion die, and the die orifice type is a rectangle, and adjusting die lip thickness is 12mm.Be expressed into the solid slab mould of this sheet mouth mould, adopt three roll-ins to prolong moulding again, two pitch cutting deburrings behind the cooling table, after metering instrument fixed length, horizontal more single pitch cutting is cut to finished product and rolls off the production line, and makes the Wood plastic composite material building mould board of outer pair of flat solid slab structure, solid slab 1 fabric width 1200mm, thick 12mm, long 2400mm.
The about 1T/m of this product load-bearing
2, about 3600 yuan/ton of cost can be applicable in the construction of concrete constructions such as shear wall, vertical wallboard, horizontal flooring, cylinder mold, special-shaped mould, bridge, dam, tunnel, beam column.
In the production process, packing, warehouse-in that inspection after construction is qualified; Underproof waste product and tankage are mixed together with the waste and old wood plastic composite of recovery, torpedo, pulverize, and reprocessing utilizes.
Embodiment two
Collect, sort 70 parts of Pericarppium arachidis hypogaeaes by weight, pulverize, grind to form powdery, the screening granularity is the 40-80 order, and moisture content is less than 3% after the drying; Choose 30 parts of polyvinyl chloride resins by weight, choosing granularity is 15 parts of 500-800 purpose Paris whites, 8 parts of PE resins, diameter 6 μ m, 5 parts of the short glass fibers of long 30 μ m.
Auxiliary agent chooses the compound lead that accounts for major ingredient and auxiliary material gross weight 2%, the acrylate copolymer (ACR) that accounts for major ingredient and auxiliary material gross weight 1%, the chlorinatedpolyethylene (CPE) that accounts for major ingredient and auxiliary material gross weight 1.6%, the stearic acid that accounts for major ingredient and auxiliary material gross weight 0.8%, account for the dioctyl phthalate (DOP) (DOP) of major ingredient and auxiliary material gross weight 1.3%, account for the polyethylene wax of major ingredient and auxiliary material gross weight 1.2%.
Above-mentioned major ingredient, auxiliary material, auxiliary agent are mixed, put into gas barrier and separate charging mouth, automatically in the hot mixing tank of the cold and hot mixer of discharging and high-speed stirring, be heated to 120 ℃, stirred 30 minutes, obtain wood and mould compound, again this wood is moulded in the cold mixing tank that compound drains into cold and hot mixer, stirred and be cooled to 50 ℃.Above-mentioned wood is moulded the compound adding has φ 92/188 conical double-screw of exhaust humidity-discharging device to bore twin-engined extrusion main unit, machine barrel divides 160 ℃, 165 ℃, 170 ℃, 175 ℃, 170 ℃, 170 ℃ six sections heating zone, melt pressure 5-10Mpa, melt temperature 160-165 ℃, screw speed 15-20rpm.Forcing machine connects rack-style reinforcement extrusion die, and the die orifice type is a rectangle reinforcement strip, matches with the product section.Be expressed into this solid stiffened plate mould, adopt the vacuum cooling moulding again, after arriving Vacuum shaping platform typing cooling behind the stock mould, after metering instrument fixed length, horizontal single pitch cutting is cut to finished product and rolls off the production line.Make the Wood plastic composite material building mould board of the solid stiffened panel structure of outer Dan Ping, fabric width 1000mm, solid slab 1 thick 6mm, long 2800mm, rib 2 thick 6mm, wide 8mm, spacing 30mm.
The about 1T/m of this product load-bearing
2, about 3400 yuan/ton of cost can be applicable in the construction of concrete constructions such as shear wall, vertical wallboard, horizontal flooring, cylinder mold, special-shaped mould, bridge, dam, tunnel, beam column.
In the production process, packing, warehouse-in that inspection after construction is qualified; Underproof waste product and tankage are mixed together with the waste and old wood plastic composite of recovery, torpedo, pulverize, and reprocessing utilizes.
Embodiment three
Collect, sort 50 parts of straws, corn stalk and corn cobs by weight, pulverize, grind to form powdery, the screening granularity is the 40-80 order, and moisture content is less than 3% after the drying; Choose 10 parts of polyvinyl chloride resins, 20 parts of the brand-new plastics powders of PVC, 20 parts of PVC waste or used plastics powders by weight, choosing granularity is 6 parts of 500-800 purpose Paris whites, 4 parts of PE resins, diameter 4 μ m, 3 parts of the short glass fibers of long 20 μ m.
Auxiliary agent is chosen compound lead, the ACR that accounts for major ingredient and auxiliary material gross weight 0.7%, the CPE that accounts for major ingredient and auxiliary material gross weight 1%, the stearic acid that accounts for major ingredient and auxiliary material gross weight 0.7%, the DOP that accounts for major ingredient and auxiliary material gross weight 1.4% that accounts for major ingredient and auxiliary material gross weight 2.5%, the polyethylene wax that accounts for major ingredient and auxiliary material gross weight 1.5%.
Above-mentioned major ingredient, auxiliary material, auxiliary agent are mixed, put into gas barrier and separate charging mouth, automatically in the hot mixing tank of the cold and hot mixer of discharging and high-speed stirring, be heated to 130 ℃, stirred 20 minutes, obtain wood and mould compound, again this wood is moulded in the cold mixing tank that compound drains into cold and hot mixer, stirred and be cooled to 60 ℃.Above-mentioned wood is moulded the compound adding has φ 92/188 twin screw of exhaust humidity-discharging device to bore twin-engined extrusion main unit, machine barrel divides 160 ℃, 165 ℃, 170 ℃, 175 ℃, 170 ℃, 170 ℃ six sections heating zone, melt pressure 5-10Mpa, melt temperature 160-165 ℃, screw speed 15-20rpm.Forcing machine connects rack-style reinforcement extrusion die, and the die orifice type is a rectangle hollow reinforcement shape, matches with the product section.Be expressed into this hollow stiffened plate mould, adopt the vacuum cooling moulding again, after arriving Vacuum shaping platform typing cooling behind the stock mould, after metering instrument fixed length, horizontal single pitch cutting is cut to finished product and rolls off the production line.Make the Wood plastic composite material building mould board of outer pair of flat hollow stiffened panel structure, fabric width 800mm, thick 20mm, long 3000mm, template internal cavity 3 sections are rectangle, wide 25mm, high 10mm, long 800mm, cavity 3 forms rib 2 thick 10mm, wide 12mm, long 800mm at interval by the rib in the template 2.
The about 10T/m of this product load-bearing
2, about 3500 yuan/ton of cost can be applicable in the construction of concrete constructions such as shear wall, vertical wallboard, horizontal flooring, cylinder mold, special-shaped mould, bridge, dam, tunnel, beam column.
In the production process, packing, warehouse-in that inspection after construction is qualified; Underproof waste product and tankage, recycling.
Embodiment four
Identical with previous embodiment repeats no more, and difference is:
Major ingredient is the powder of 50 parts of leaves, straw leaf and sunflower leaf, 40 parts of brand-new plastics powders of PVC, 10 parts of PVC waste or used plastics powders; Auxiliary material is 12 parts of Paris whites, 2 parts of PE resins, 2 parts of diameter 7 μ m, the short glass fiber of long 20 μ m; Auxiliary agent is compound lead, the ACR that accounts for major ingredient and auxiliary material gross weight 0.8%, the CPE that accounts for major ingredient and auxiliary material gross weight 2%, the stearic acid that accounts for major ingredient and auxiliary material gross weight 0.5%, the DOP that accounts for major ingredient and auxiliary material gross weight 1.5% that accounts for major ingredient and auxiliary material gross weight 2%, the polyethylene wax that accounts for major ingredient and auxiliary material gross weight 1%.
Above-mentioned major ingredient, auxiliary material, auxiliary agent are mixed, put in the hot mixing tank of cold and hot mixer, be heated to 120 ℃, stirred 30 minutes, drain into again in the cold mixing tank, stir and be cooled to 50 ℃.Above-mentioned wood is moulded compound add extrusion main unit, be expressed into hollow stiffened plate mould, the die orifice type is square hollow reinforcement shape, matches with the product section.The Wood plastic composite material building mould board of hollow stiffened panel structure is made in vacuum cooling moulding again, cutting, and fabric width 1200mm, thick 50mm, long 4000mm, template internal cavity 3 sections are square, wide 30mm, high 30mm, rib 2 wide 15mm, long 1200mm.
The about 10T/m of this product load-bearing
2, about 3700 yuan/ton of cost.
Embodiment five
Identical with previous embodiment repeats no more, and difference is:
Major ingredient is 40 parts of sawdusts, wood shavings powder, 10 parts of brand-new plastics powders of PVC, 50 parts of waste or used plastics powders; Auxiliary material is 10 parts of Paris whites, 6 parts of PE resins, 4 parts of diameter 5 μ m, the short glass fiber of long 28 μ m; Auxiliary agent is compound lead, the ACR that accounts for major ingredient and auxiliary material gross weight 0.6%, the CPE that accounts for major ingredient and auxiliary material gross weight 1.8%, the stearic acid that accounts for major ingredient and auxiliary material gross weight 0.6%, the DOP that accounts for major ingredient and auxiliary material gross weight 1.0% that accounts for major ingredient and auxiliary material gross weight 2.5%, the polyethylene wax that accounts for major ingredient and auxiliary material gross weight 1.1%.
Above-mentioned major ingredient, auxiliary material, auxiliary agent are mixed, put in the hot mixing tank of cold and hot mixer, be heated to 110 ℃, stirred 40 minutes, drain into again in the cold mixing tank, stir and be cooled to 40 ℃.Above-mentioned wood is moulded compound add extrusion main unit, be expressed into hollow stiffened plate mould, the die orifice type is circular hollow reinforcement shape, matches with the product section.The Wood plastic composite material building mould board of hollow stiffened panel structure is made in vacuum cooling moulding again, cutting, and fabric width 1100mm, thick 40mm, long 2200mm, template internal cavity 3 sections are circular, diameter 16mm, spacing 8mm, rib 2 long 1000mm.
The about 10T/m of this product load-bearing
2, about 3200 yuan/ton of cost.
Embodiment six
Identical with previous embodiment repeats no more, and difference is:
Major ingredient is 40 parts of waste paper powder, 60 parts of PVC waste or used plastics powders; Auxiliary material is 15 parts of Paris whites, 7 parts of PE resins, 6 parts of diameter 6 μ m, the short glass fiber of long 30 μ m; Auxiliary agent is compound lead, the ACR that accounts for major ingredient and auxiliary material gross weight 0.9%, the CPE that accounts for major ingredient and auxiliary material gross weight 1.2%, the stearic acid that accounts for major ingredient and auxiliary material gross weight 0.9%, the DOP that accounts for major ingredient and auxiliary material gross weight 1.1% that accounts for major ingredient and auxiliary material gross weight 3%, the polyethylene wax that accounts for major ingredient and auxiliary material gross weight 1.4%.
Above-mentioned major ingredient, auxiliary material, auxiliary agent are mixed, put in the hot mixing tank of cold and hot mixer, be heated to 130 ℃, stirred 20 minutes, drain into again in the cold mixing tank, stir and be cooled to 60 ℃.Above-mentioned wood is moulded compound add extrusion main unit, be expressed into hollow stiffened plate mould, the die orifice type is oval hollow reinforcement shape, matches with the product section.Vacuum cooling moulding again, cutting make the Wood plastic composite material building mould board of hollow stiffened panel structure, and fabric width 900mm, thick 30mm, long 2500mm, template internal cavity 3 sections are oval, focal length 16mm, high 10mm, spacing 10mm, rib 2 long 900mm.
The about 10T/m of this product load-bearing
2, about 3100 yuan/ton of cost.
Claims (11)
1. Wood plastic composite material building mould board, its composition comprises major ingredient, auxiliary material and auxiliary agent, it is characterized in that: major ingredient is a polyvinyl chloride resin or/and PVC plastics, wood fiber powder, auxiliary material is calcium powder, PE resin, short glass fiber, auxiliary agent is stablizer, processing aid, impact modifier, product internal lubricant, softening agent, product external surfaces lubricant, and its part by weight is as follows:
A. in the major ingredient, polyvinyl chloride resin is or/and the PVC plastic content accounts for 30-60%, and the wood fibre powder content accounts for 40-70%;
B. in the auxiliary material, calcium powder content accounts for the 6-15% of major ingredient weight, and the PE resin content accounts for the 2-8% of major ingredient weight, and short glass fiber content accounts for the 2-6% of major ingredient weight;
C. in the auxiliary agent, the 2-3% of stabilizer comprises major ingredient and auxiliary material gross weight, processing aid accounts for the 0.5-1% of major ingredient and auxiliary material gross weight, impact modifier accounts for the 1-2% of major ingredient and auxiliary material gross weight, the product internal lubricant accounts for the 0.5-1% of major ingredient and auxiliary material gross weight, softening agent accounts for the 1-1.5% of major ingredient and auxiliary material gross weight, and the product external surfaces lubricant accounts for the 1-1.5% of major ingredient and auxiliary material gross weight.
2. Wood plastic composite material building mould board according to claim 1 is characterized in that: described wood fiber powder is the mixture of powdered rice hulls, peanut hull meal, straw powder, corn cob meal, plant stem-leaf powder, sawdust, wood shavings powder, waste paper powder or above-mentioned powder; Described calcium powder is a Paris white; Described short glass fiber diameter is 4-7 μ m, long 20-30 μ m; Described stablizer, processing aid, impact modifier, product internal lubricant, softening agent, product external surfaces lubricant are respectively compound lead, acrylate copolymer (ACR), chlorinatedpolyethylene, stearic acid, dimixo-octyl phthalate (DOP), polyethylene wax.
3. Wood plastic composite material building mould board according to claim 1 and 2 is characterized in that: this template is solid slab (1), or solid stiffened plate, or the hollow stiffened plate; The structure of described solid stiffened plate be outside being the wood plastic composite solid slab (1) of flats rectangular parallelepiped, single surface arrangement has wood plastic composite rib (2), its section is concave-convex type; The structure of described hollow stiffened plate is to have some cavitys (3) in the wood plastic composite template inside that is the flats rectangular parallelepiped, and cavity (3) is formed by the interval between the wood plastic composite rib (2) of template inside; Rib (2) uniform distribution of described solid stiffened plate and hollow stiffened plate, degree of closing is according to the practical application request adjustment.
4. according to the preparation method of claim 1 or 2 described Wood plastic composite material building mould boards, adopt following processing step successively:
A. choose major ingredient, auxiliary material and auxiliary agent by weight, polyvinyl chloride resin chosen by major ingredient or/and wood fiber powder 40-70 part is pulverized, grinds, dried to PVC plastics powder 30-60 part (the waste PVC plastics of recovery need torpedo), totally 100 parts of major ingredients; Auxiliary material is chosen calcium powder, the PE resin that accounts for major ingredient weight 2-8% that accounts for major ingredient weight 6-15%, the short glass fiber that accounts for major ingredient weight 2-6%; Auxiliary agent is chosen stablizer, the processing aid that accounts for major ingredient and auxiliary material gross weight 0.5-1%, the impact modifier that accounts for major ingredient and auxiliary material gross weight 1-2%, the product internal lubricant that accounts for major ingredient and auxiliary material gross weight 0.5-1%, the softening agent that accounts for major ingredient and auxiliary material gross weight 1-1.5% that accounts for major ingredient and auxiliary material gross weight 2-3%, the product external surfaces lubricant that accounts for major ingredient and auxiliary material gross weight 1-1.5%;
B. above-mentioned raw materials is mixed, put in the hot mixing tank of cold and hot mixer, be heated to 110-130 ℃, stirred 20-40 minute, obtain wood and mould compound, this wood is moulded in the cold mixing tank that compound drains into cold and hot mixer again, stirring is cooled to 40-60 ℃;
C. above-mentioned wood is moulded compound and added extrusion main unit, be expressed into mould, calendering formation, deburring, cutting or vacuum cooling moulding, cutting again obtains the Wood plastic composite material building mould board of certain size size.
5. according to the preparation method of the described Wood plastic composite material building mould board of claim 4, it is characterized in that: used wood fiber powder is the mixture of powdered rice hulls, peanut hull meal, straw powder, corn cob meal, plant stem-leaf powder, sawdust, wood shavings powder, waste paper powder or above-mentioned powder, granularity is the 40-80 order after pulverizing, grinding, and moisture content is less than 3% after the drying; Used calcium powder is a Paris white, and granularity is the 500-800 order; Used short glass fiber diameter is 4-7 μ m, long 20-30 μ m; Used stablizer, processing aid, impact modifier, product internal lubricant, softening agent, product external surfaces lubricant are respectively compound lead, acrylate copolymer (ACR), chlorinatedpolyethylene, stearic acid, dimixo-octyl phthalate (DOP), polyethylene wax.
6. according to the preparation method of the described Wood plastic composite material building mould board of claim 4, it is characterized in that: extrusion main unit is the two main frames of twin screw awl, and the exhaust humidity-discharging device is arranged; Solid slab (1) mould is a sheet mouth mould, and the mould of solid stiffened plate and hollow stiffened plate is the mould that matches with the product section; Solid slab (1) adopts three roll-ins to prolong moulding, and solid stiffened plate and hollow stiffened plate adopt the vacuum cooling moulding.
7. according to the preparation method of the described Wood plastic composite material building mould board of claim 3, adopt following processing step successively:
A. choose major ingredient, auxiliary material and auxiliary agent by weight, polyvinyl chloride resin chosen by major ingredient or/and wood fiber powder 40-70 part is pulverized, grinds, dried to PVC plastics powder 30-60 part (the waste PVC plastics of recovery need torpedo), totally 100 parts of major ingredients; Auxiliary material is chosen calcium powder, the PE resin that accounts for major ingredient weight 2-8% that accounts for major ingredient weight 6-15%, the short glass fiber that accounts for major ingredient weight 2-6%; Auxiliary agent is chosen stablizer, the processing aid that accounts for major ingredient and auxiliary material gross weight 0.5-1%, the impact modifier that accounts for major ingredient and auxiliary material gross weight 1-2%, the product internal lubricant that accounts for major ingredient and auxiliary material gross weight 0.5-1%, the softening agent that accounts for major ingredient and auxiliary material gross weight 1-1.5% that accounts for major ingredient and auxiliary material gross weight 2-3%, the product external surfaces lubricant that accounts for major ingredient and auxiliary material gross weight 1-1.5%;
B. above-mentioned raw materials is mixed, put in the hot mixing tank of cold and hot mixer, be heated to 110-130 ℃, stirred 20-40 minute, obtain wood and mould compound, this wood is moulded in the cold mixing tank that compound drains into cold and hot mixer again, stirring is cooled to 40-60 ℃;
C. above-mentioned wood is moulded compound and added extrusion main unit, be expressed into mould, calendering formation, deburring, cutting or vacuum cooling moulding, cutting again obtains the Wood plastic composite material building mould board of certain size size.
8. according to the preparation method of the described Wood plastic composite material building mould board of claim 7, it is characterized in that: used wood fiber powder is the mixture of powdered rice hulls, peanut hull meal, straw powder, corn cob meal, plant stem-leaf powder, sawdust, wood shavings powder, waste paper powder or above-mentioned powder, granularity is the 40-80 order after pulverizing, grinding, and moisture content is less than 3% after the drying; Used calcium powder is a Paris white, and granularity is the 500-800 order; Used short glass fiber diameter is 4-7 μ m, long 20-30 μ m; Used stablizer, processing aid, impact modifier, product internal lubricant, softening agent, product external surfaces lubricant are respectively compound lead, acrylate copolymer (ACR), chlorinatedpolyethylene, stearic acid, dimixo-octyl phthalate (DOP), polyethylene wax.
9. according to the preparation method of the described Wood plastic composite material building mould board of claim 7, it is characterized in that: extrusion main unit is the two main frames of twin screw awl, and the exhaust humidity-discharging device is arranged; Solid slab (1) mould is a sheet mouth mould, and the mould of solid stiffened plate and hollow stiffened plate is the mould that matches with the product section; Solid slab (1) adopts three roll-ins to prolong moulding, and solid stiffened plate and hollow stiffened plate adopt the vacuum cooling moulding.
10. Wood plastic composite material building mould board according to claim 1 and 2 can be applicable to comprise in the concrete construction: the concrete construction of shear wall, vertical wallboard, horizontal flooring, cylinder mold, special-shaped mould, bridge, dam, tunnel, beam column.
11. Wood plastic composite material building mould board according to claim 3 can be applicable to comprise in the concrete construction: the concrete construction of shear wall, vertical wallboard, horizontal flooring, cylinder mold, special-shaped mould, bridge, dam, tunnel, beam column.
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| CNB2005100218337A CN100392012C (en) | 2005-10-10 | 2005-10-10 | Wood plastic composite material building mould board, its preparation method and use |
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