CN103407262A - Co-extruding-molded plastic-wood composite sheet material and preparation method thereof - Google Patents
Co-extruding-molded plastic-wood composite sheet material and preparation method thereof Download PDFInfo
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- CN103407262A CN103407262A CN2013103704986A CN201310370498A CN103407262A CN 103407262 A CN103407262 A CN 103407262A CN 2013103704986 A CN2013103704986 A CN 2013103704986A CN 201310370498 A CN201310370498 A CN 201310370498A CN 103407262 A CN103407262 A CN 103407262A
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Abstract
The invention relates to a co-extruding-molded plastic-wood composite sheet material. The co-extruding-molded plastic-wood composite sheet material consists of anti-aging and anti-mildewing resin layers and a plastic-wood structural layer, wherein the anti-aging and anti-mildewing resin layers are located on the upper and lower surfaces of the plastic-wood structural layer. The resin layers are formed through melting, blending and extruding ASA (Acrylate-Styrene-Acrylonitrile copolymer) resin, a color master batch, an ultraviolet absorber, an antibacterial agent and stearin; and the structural layer is formed through extruding polyethylene, triarrhena sacchariflora powder, magnesium hydroxide sulfate whiskers, calcium powder, polyethylene glycol and ethylene bis-stearamide. The resin layers and the structural layer respectively form different melted material flows which are converged in a composite machine head, resin layer material flows cover a structural layer material flow upwards and downwards, and then, a mouth mold is used for co-extruding so as to form the co-extruding-molded plastic-wood composite sheet material. The co-extruding-molded plastic-wood composite sheet material has the advantages that the design is reasonable, the structure is simple, the production and manufacturing are convenient, the raw material range of plastic wood is expanded, the anti-aging and anti-mildewing effects are good, the cost is low, the service life is longer, and the surface modification performance is better. The co-extruding-molded plastic-wood composite sheet material is applicable to the manufacture of indoor and outdoor floors, guard rails, decorative plates and the like.
Description
Technical field
What a kind of coextrusion mold wood plastic composite board of the present invention and preparation method thereof related to is a kind of composite, a kind of structural material and preparation method thereof, is applicable to the inside and outside floor of make-up room, guardrail, decorative panel etc.
Background technology
People have compatibility to timber, and the household decoration be unable to do without timber.But timber self also has shortcoming, easy shrinkage cracking, meet water yielding, meets wet easily mouldyly, meets fiery easy firing, if the timber made from glued board, wherein formaldehyde also can pollute indoor.And take wood powder and plastics, be primary raw material, then be aided with the Wood plastic composite that other auxiliary agents form and but can keep the advantage of timber, can overcome the shortcoming of timber simultaneously.Through research, exploitation and the commercial Application of more than ten years, Wood plastic composite has formed a new industry at present.Wood plastic composite be take the string such as wood powder, agricultural stalk powder and plastics and is main raw material(s), adopts advanced technologies to process, and its product can repeat recycling.From on sense organ, plastic-wood material has good woodiness touch, partiting thermal insulation, and the simple wood materials of mechanical property ratio is high 10 times, is the ideal substitute of natural timber.Mould wood products and be widely used in the fields such as packing, gardens, transportation, building, car and boat interior trim.However, also there is certain defect in Wood plastic composite, such as, it is easily aging that it is irradiated by ultraviolet ray in use, and use can be gone mouldy etc. in wet environment, thereby affects its service life.For overcoming this deficiency, often need Wood plastic composite is carried out to modification, be mainly in its formula, to add antimildew and antibacterial agent, ultra-violet absorber etc. in process of production.But because these additive costs are higher, and Wood plastic composite self mainly utilizes waste or used plastics and agricultural crop straw powder to do material forming, regenerated resource development and utilization, after adding in a large number, the expensive auxiliary agents such as above-mentioned antimildew and antibacterial agent, ultra-violet absorber will increase undoubtedly the production cost of Wood plastic composite, and unfavorable to its market development.Thereby, invent a kind of novel plastic wood composite board, it can keep the plurality of advantages of traditional Wood plastic composite, simultaneously again can be under the prerequisite of less use ultra-violet absorber, antiseptic antibacterial and mouldproof, anti-aging etc. just very necessary.
Summary of the invention
The objective of the invention is to invent a kind of coextrusion mold wood plastic composite board and preparation method thereof, this wood plastic composite board is except the multipurpose characteristics with general wood plastic composite board, have better ageing-resistant, mildew-resistant sex change energy, can use out of doors for a long time and do not occur aging, go mouldy.
A kind of coextrusion mold wood plastic composite board and preparation method thereof takes following scheme to realize:
A kind of coextrusion mold wood plastic composite board consists of anti-aging mildew-resistant changing resin layer and Wood plastic composite structure sheaf, and anti-aging mildew-resistant changing resin layer is positioned at the upper and lower surface of Wood plastic composite structure sheaf.
Anti-aging mildew-resistant changing resin layer is by ASA(acrylic acid-SAN) resin, color masterbatch, ultra-violet absorber, antiseptic, tristerin extrude and form through melt blending; The Wood plastic composite structure sheaf is formed through extruding by polyethylene, reed grass meal, alkali magnesium sulfate crystal whisker, calcium powder, polyethylene glycol, ethylene bis stearic acid amide.
Described a kind of coextrusion mold wood plastic composite board is that anti-aging mildew-resistant changing resin layer and Wood plastic composite structure sheaf form respectively different melting charge stream, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.
Described color masterbatch is a kind of in polyethylene color masterbatch and polypropylene colorant material.
Described ultra-violet absorber is the UV531 ultra-violet absorber.
Described antiseptic is the nano TiO 2 carrying silver antibacterial agent, and particle diameter is 20-40nm.
Described reed grass meal particle size is the 80-160 order.
Described alkali magnesium sulfate crystal whisker, diameter are 0.4-0.8 μ m, and draw ratio is 50-100.
Described calcium powder is the precipitated calcium carbonate powder, and particle size is the 800-1500 order.
Described polyethylene glycol is a kind of in Macrogol 2000, Macrogol 4000 and Macrogol 6000.
A kind of coextrusion mold wood plastic composite board and preparation method thereof, its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, color masterbatch, ultra-violet absorber, antiseptic, tristerin mix rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, extrusion temperature 155-180 ℃:
ASA(acrylic acid-SAN) resin 10
Color masterbatch 1-2
Ultra-violet absorber 0.01-0.05
Antiseptic 0.05-0.15
Tristerin 0.08-0.12;
(2) polyethylene, reed grass meal, alkali magnesium sulfate crystal whisker, calcium powder, polyethylene glycol, ethylene bis stearic acid amide are mixed to second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, extrusion temperature 175-185 ℃:
Polyethylene 30-40
Reed grass meal 100
Alkali magnesium sulfate crystal whisker 1-2
Calcium powder 3-9
Polyethylene glycol 0.9-1.5
Ethylene bis stearic acid amide 0.9-1.5;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.Die temperature 165-185 ℃, it is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that moulding obtains a upper and lower surface.
A kind of coextrusion mold wood plastic composite board of the present invention is reasonable in design, simple in structure, it is convenient to manufacture, with other wood plastic composite boards, compare, a kind of coextrusion mold wood plastic composite board adopts reed grass to substitute wood powder, rice chaff etc., both enlarged the raw material range of Wood plastic composite, this common wild plant of reed grass is utilized, turned waste into wealth; In addition, owing to having taked coextrusion process, various ultra-violet absorbers, antiseptic are enriched in surperficial anti-aging mildew-resistant changing resin layer, thereby improved the content of superficial layer ultra-violet absorber and antiseptic, when this type of sheet material, during in outdoor application, can more effectively prevent thermo-oxidative ageing, ultraviolet light and aging and go mouldy etc.And in structure sheaf owing to no longer adding a large amount of ultra-violet absorbers and antiseptic, reduced the cost of wood plastic composite board.A kind of coextrusion mold wood plastic composite board utilizes the combination of alkali magnesium sulfate crystal whisker and calcium powder in its Wood plastic composite structure sheaf, effectively improved rigidity and the strength characteristics of wood plastic composite board.A kind of coextrusion mold wood plastic composite board had both had longer service life, and had better finishing performance.
The accompanying drawing explanation
The invention will be further described below with reference to accompanying drawing:
Fig. 1 is a kind of coextrusion mold wood plastic composite board structural representation.
1-anti-aging mildew-resistant changing resin layer, 2-Wood plastic composite structure sheaf, 3-ASA resin, 4-color masterbatch, 5-ultra-violet absorber, the 6-antiseptic, 7-tristerin, 8-polyethylene, 9-reed grass meal, the 10-alkali magnesium sulfate crystal whisker, 11-calcium powder, 12-polyethylene glycol, 13-ethylene bis stearic acid amide.
The specific embodiment
With reference to accompanying drawing 1, a kind of coextrusion mold wood plastic composite board consists of anti-aging mildew-resistant changing resin layer 1 and Wood plastic composite structure sheaf 2, and anti-aging mildew-resistant changing resin layer 1 is positioned at Wood plastic composite structure sheaf 2 surfaces; Anti-aging mildew-resistant changing resin layer 1 mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream, extrusion temperature 155-180 ℃ by ASA resin 3, color masterbatch 4, ultra-violet absorber 5, antiseptic 6, tristerin 7; Wood plastic composite structure sheaf 2 mixes second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing, extrusion temperature 175-185 ℃ by polyethylene 8, reed grass meal 9, alkali magnesium sulfate crystal whisker 10, calcium powder 11, polyethylene glycol 12, ethylene bis stearic acid amide 13; Anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then per os mould coextrusion mold obtain surface for anti-aging mildew-resistant changing resin layer 1, followingly be a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf 2, die temperature 165-185 ℃.
Described color masterbatch is a kind of in polyethylene color masterbatch and polypropylene colorant material.
Described ultra-violet absorber is the UV531 ultra-violet absorber.
Described antiseptic is the nano TiO 2 carrying silver antibacterial agent, and particle diameter is 20-40nm.
Described reed grass meal particle size is the 80-160 order.
Described alkali magnesium sulfate crystal whisker, diameter are 0.4-0.8 μ m, and draw ratio is 50-100.
Described calcium powder is the precipitated calcium carbonate powder, and particle size is the 800-1500 order.
Described polyethylene glycol is a kind of in Macrogol 2000, Macrogol 4000 and Macrogol 6000.
Embodiment 1: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polyethylene color masterbatch, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 30nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 168 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1.5kg
Ultra-violet absorber 0.03kg
Antiseptic 0.1kg
Tristerin 0.1kg;
(2) be 120 order reed grass meals by polyethylene, particle size, (diameter is 0.6 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 75), particle size is that 1200 order calcium powders, Macrogol 4000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 180 ℃ of extrusion temperatures:
Polyethylene 35kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1.5kg
Calcium powder 6kg
Polyethylene glycol 1.2kg
Ethylene bis stearic acid amide 1.2kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 175 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 2: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polypropylene colorant material, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 20nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 155 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1kg
Ultra-violet absorber 0.01kg
Antiseptic 0.05kg
Tristerin 0.08kg;
(2) be 80 order reed grass meals by polyethylene, particle size, (diameter is 0.4 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 50), particle size is that 800 order calcium powders, Macrogol 2000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 175 ℃ of extrusion temperatures:
Polyethylene 30kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1kg
Calcium powder 3kg
Polyethylene glycol 0.9kg
Ethylene bis stearic acid amide 0.9kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 165 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 3: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polyethylene color masterbatch, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 40nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 180 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 2kg
Ultra-violet absorber 0.05kg
Antiseptic 0.15kg
Tristerin 0.12kg;
(2) be 160 order reed grass meals by polyethylene, particle size, (diameter is 0.8 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 100), particle size is that 1500 order calcium powders, Macrogol 6000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 185 ℃ of extrusion temperatures:
Polyethylene 40kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 2kg
Calcium powder 9kg
Polyethylene glycol 1.5kg
Ethylene bis stearic acid amide 1.5kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 185 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 4: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polypropylene colorant material, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 20nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 168 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1kg
Ultra-violet absorber 0.03kg
Antiseptic 0.15kg
Tristerin 0.08kg;
(2) be 80 order reed grass meals by polyethylene, particle size, (diameter is 0.4 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 100), particle size is that 800 order calcium powders, Macrogol 6000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 175 ℃ of extrusion temperatures:
Polyethylene 30kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1kg
Calcium powder 6kg
Polyethylene glycol 0.9kg
Ethylene bis stearic acid amide 1.5kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 185 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 5: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polyethylene color masterbatch, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 40nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 180 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 2kg
Ultra-violet absorber 0.01kg
Antiseptic 0.15kg
Tristerin 0.1kg;
(2) be 160 order reed grass meals by polyethylene, particle size, (diameter is 0.8 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 50), particle size is that 1500 order calcium powders, Macrogol 6000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 180 ℃ of extrusion temperatures:
Polyethylene 35kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1kg
Calcium powder 6kg
Polyethylene glycol 1.2kg
Ethylene bis stearic acid amide 1.5kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 175 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 6: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polypropylene colorant material, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 30nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 168 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1.5kg
Ultra-violet absorber 0.05kg
Antiseptic 0.1kg
Tristerin 0.08kg;
(2) be 120 order reed grass meals by polyethylene, particle size, (diameter is 0.6 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 50), particle size is that 1200 order calcium powders, Macrogol 4000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 185 ℃ of extrusion temperatures:
Polyethylene 40kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1.5kg
Calcium powder 3kg
Polyethylene glycol 1.5kg
Ethylene bis stearic acid amide 1.2kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 165 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 7: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polyethylene color masterbatch, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 40nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 180 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 2kg
Ultra-violet absorber 0.05kg
Antiseptic 0.1kg
Tristerin 0.1kg;
(2) be 160 order reed grass meals by polyethylene, particle size, (diameter is 0.8 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 75), particle size is that 1500 order calcium powders, Macrogol 6000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 180 ℃ of extrusion temperatures:
Polyethylene 40kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1kg
Calcium powder 3kg
Polyethylene glycol 0.9kg
Ethylene bis stearic acid amide 1.2kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 165 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 8: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polypropylene colorant material, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 30nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 168 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1.5kg
Ultra-violet absorber 0.03kg
Antiseptic 0.15kg
Tristerin 0.08kg;
(2) be 120 order reed grass meals by polyethylene, particle size, (diameter is 0.4 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 100), particle size is that 1200 order calcium powders, Macrogol 4000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 185 ℃ of extrusion temperatures:
Polyethylene 30kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 2kg
Calcium powder 9kg
Polyethylene glycol 1.2kg
Ethylene bis stearic acid amide 0.9kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 185 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 9: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polyethylene color masterbatch, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 20nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 155 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1kg
Ultra-violet absorber 0.01kg
Antiseptic 0.1kg
Tristerin 0.12kg;
(2) be 80 order reed grass meals by polyethylene, particle size, (diameter is 0.4 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 75), particle size is that 800 order calcium powders, Macrogol 2000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 175 ℃ of extrusion temperatures:
Polyethylene 35kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 2kg
Calcium powder 9kg
Polyethylene glycol 1.5kg
Ethylene bis stearic acid amide 0.9kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 175 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 10: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polypropylene colorant material, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 40nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 180 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 2kg
Ultra-violet absorber 0.05kg
Antiseptic 0.15kg
Tristerin 0.08kg;
(2) be 160 order reed grass meals by polyethylene, particle size, (diameter is 0.6 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 50), particle size is that 1500 order calcium powders, Macrogol 6000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 185 ℃ of extrusion temperatures:
Polyethylene 30kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 2kg
Calcium powder 9kg
Polyethylene glycol 0.9kg
Ethylene bis stearic acid amide 1.2kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 175 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 11: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polyethylene color masterbatch, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 20nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 155 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1kg
Ultra-violet absorber 0.01kg
Antiseptic 0.05kg
Tristerin 0.1kg;
(2) be 80 order reed grass meals by polyethylene, particle size, (diameter is 0.8 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 50), particle size is that 800 order calcium powders, Macrogol 2000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 180 ℃ of extrusion temperatures:
Polyethylene 40kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1.5kg
Calcium powder 3kg
Polyethylene glycol 1.2kg
Ethylene bis stearic acid amide 0.9kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 165 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 12: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polypropylene colorant material, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 30nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 168 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1.5kg
Ultra-violet absorber 0.03kg
Antiseptic 0.1kg
Tristerin 0.12kg;
(2) be 120 order reed grass meals by polyethylene, particle size, (diameter is 0.6 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 100), particle size is that 1200 order calcium powders, Macrogol 4000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 175 ℃ of extrusion temperatures:
Polyethylene 35kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1.5kg
Calcium powder 6kg
Polyethylene glycol 1.5kg
Ethylene bis stearic acid amide 1.5kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 165 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 13: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polyethylene color masterbatch, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 30nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 155 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1.5kg
Ultra-violet absorber 0.05kg
Antiseptic 0.05kg
Tristerin 0.12kg;
(2) be 120 order reed grass meals by polyethylene, particle size, (diameter is 0.8 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 100), particle size is that 1200 order calcium powders, Macrogol 6000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 185 ℃ of extrusion temperatures:
Polyethylene 35kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1.5kg
Calcium powder 3kg
Polyethylene glycol 1.2kg
Ethylene bis stearic acid amide 1.5kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 175 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 14: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polypropylene colorant material, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 20nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 155 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1kg
Ultra-violet absorber 0.05kg
Antiseptic 0.15kg
Tristerin 0.1kg;
(2) be 80 order reed grass meals by polyethylene, particle size, (diameter is 0.6 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 75), particle size is that 800 order calcium powders, Macrogol 2000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 180 ℃ of extrusion temperatures:
Polyethylene 35kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1kg
Calcium powder 3kg
Polyethylene glycol 1.5kg
Ethylene bis stearic acid amide 0.9kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 165 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 15: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polyethylene color masterbatch, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 40nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 180 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 2kg
Ultra-violet absorber 0.01kg
Antiseptic 0.05kg
Tristerin 0.1kg;
(2) be 160 order reed grass meals by polyethylene, particle size, (diameter is 0.4 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 100), particle size is that 1500 order calcium powders, Macrogol 6000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 175 ℃ of extrusion temperatures:
Polyethylene 40kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1kg
Calcium powder 6kg
Polyethylene glycol 1.5kg
Ethylene bis stearic acid amide 1.2kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 185 ℃ of die temperatures, moulding obtain a upper and lower surface.
Embodiment 16: a kind of coextrusion mold wood plastic composite board and preparation method thereof, and its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, polypropylene colorant material, ultra-violet absorber, particle diameter be that nano TiO 2 carrying silver antibacterial agent, the tristerin of 35nm mixes rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, 170 ℃ of extrusion temperatures:
ASA(acrylic acid-SAN) resin 10kg
Color masterbatch 1.2kg
Ultra-violet absorber 0.04kg
Antiseptic 0.12kg
Tristerin 0.09kg;
(2) be 100 order reed grass meals by polyethylene, particle size, (diameter is 0.7 μ m to alkali magnesium sulfate crystal whisker, draw ratio is 80), particle size is that 1000 order calcium powders, Macrogol 3000, ethylene bis stearic acid amide mix second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, 178 ℃ of extrusion temperatures:
Polyethylene 34kg
Reed grass meal 100kg
Alkali magnesium sulfate crystal whisker 1.7kg
Calcium powder 8kg
Polyethylene glycol 1.3kg
Ethylene bis stearic acid amide 1.1kg;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.It is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that 173 ℃ of die temperatures, moulding obtain a upper and lower surface.
Below by detection, prove the effect of the ageing-resistant wood plastic composite board of the embodiment of the present invention 1, its testing result is as follows:
MOR: 30.7MPa, quiet bent modulus: 1.65GPa;
Ultraviolet light and aging 3000h, the MOR conservation rate: 95.1%, quiet bent modulus conservation rate: 96.1%, without phenomenons such as efflorescence, crackings;
The experiment of going mouldy of brown rot fungus gloeophyllum trabeum, after 3 months, the MOR conservation rate: 94.3%, quiet bent modulus conservation rate: 97.5%, outward appearance is without obvious change color.
Above result all meets or exceeds relevant criterion.
Claims (10)
1. a coextrusion mold wood plastic composite board, is characterized in that consisting of anti-aging mildew-resistant changing resin layer and Wood plastic composite structure sheaf, and anti-aging mildew-resistant changing resin layer is positioned at the upper and lower surface of Wood plastic composite structure sheaf; Anti-aging mildew-resistant changing resin layer is by ASA(acrylic acid-SAN) resin, color masterbatch, ultra-violet absorber, antiseptic, tristerin extrude and form through melt blending; The Wood plastic composite structure sheaf is formed through extruding by polyethylene, reed grass meal, alkali magnesium sulfate crystal whisker, calcium powder, polyethylene glycol, ethylene bis stearic acid amide.
2. a kind of coextrusion mold wood plastic composite board according to claim 1, it is characterized in that forming respectively different melting charge stream by anti-aging mildew-resistant changing resin layer and Wood plastic composite structure sheaf, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded.
3. a kind of coextrusion mold wood plastic composite board according to claim 1 and 2, is characterized in that described color masterbatch is a kind of in polyethylene color masterbatch and polypropylene colorant material.
4. a kind of coextrusion mold wood plastic composite board according to claim 1 and 2, is characterized in that described ultra-violet absorber is the UV531 ultra-violet absorber.
5. a kind of coextrusion mold wood plastic composite board according to claim 1 and 2, is characterized in that described antiseptic is the nano TiO 2 carrying silver antibacterial agent, and particle diameter is 20-40nm.
6. a kind of coextrusion mold wood plastic composite board according to claim 1 and 2, is characterized in that described reed grass meal particle size is the 80-160 order.
7. a kind of coextrusion mold wood plastic composite board according to claim 1 and 2, is characterized in that described alkali magnesium sulfate crystal whisker, and diameter is 0.4-0.8 μ m, and draw ratio is 50-100.
8. a kind of coextrusion mold wood plastic composite board according to claim 1 and 2, is characterized in that described calcium powder is the precipitated calcium carbonate powder, and particle size is the 800-1500 order.
9. a kind of coextrusion mold wood plastic composite board according to claim 1 and 2, is characterized in that described polyethylene glycol is a kind of in Macrogol 2000, Macrogol 4000 and Macrogol 6000.
10. the preparation method of a kind of coextrusion mold wood plastic composite board according to claim 1 and 2 is characterized in that its preparation process is:
(1) by ASA(acrylic acid-SAN) resin, color masterbatch, ultra-violet absorber, antiseptic, tristerin mix rear employing extruder for shaping anti-aging mildew-resistant changing resin layer melting charge stream by following parts by weight, extrusion temperature 155-180 ℃:
ASA(acrylic acid-SAN) resin 10
Color masterbatch 1-2
Ultra-violet absorber 0.01-0.05
Antiseptic 0.05-0.15
Tristerin 0.08-0.12;
(2) polyethylene, reed grass meal, alkali magnesium sulfate crystal whisker, calcium powder, polyethylene glycol, ethylene bis stearic acid amide are mixed to second extruder for shaping Wood plastic composite structure sheaf melting charge stream of rear employing by following parts by weight, extrusion temperature 175-185 ℃:
Polyethylene 30-40
Reed grass meal 100
Alkali magnesium sulfate crystal whisker 1-2
Calcium powder 3-9
Polyethylene glycol 0.9-1.5
Ethylene bis stearic acid amide 0.9-1.5;
(3) anti-aging mildew-resistant changing resin layer, Wood plastic composite structure sheaf are formed to different melting charge stream stacks while hot, in a composite machine head, converge, and make anti-aging mildew-resistant changing resin layered material stream coat up and down Wood plastic composite structure layered material stream, then the per os mould is co-extruded; Die temperature 165-185 ℃, it is that anti-aging mildew-resistant changing resin layer, centre are a kind of coextrusion mold wood plastic composite board of Wood plastic composite structure sheaf that moulding obtains a upper and lower surface.
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Application publication date: 20131127 |