CN101708617B - Anti-ageing wood-plastic composite board and preparation method thereof - Google Patents
Anti-ageing wood-plastic composite board and preparation method thereof Download PDFInfo
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- CN101708617B CN101708617B CN2009102346037A CN200910234603A CN101708617B CN 101708617 B CN101708617 B CN 101708617B CN 2009102346037 A CN2009102346037 A CN 2009102346037A CN 200910234603 A CN200910234603 A CN 200910234603A CN 101708617 B CN101708617 B CN 101708617B
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Abstract
The invention relates to a wood-plastic composite, in particular to an anti-ageing wood-plastic composite board and a preparation method thereof. The anti-ageing wood-plastic composite board of the invention is manufactured by mechanically mixing and melt-mixing wood meal, calcium carbonate powder, plastic particles, maleic anhydride, stearate, pigment, antibacterial agent, antioxidant and ultraviolet absorber in sequence, and extruding and molding the mixture. The anti-ageing wood-plastic composite board has extremely wide application, is suitable for the industries of architectural decoration, transportation, furniture, municipal administration, gardens and the like, is renewable, has low cost, ageing resistance and ultraviolet resistance, is an ideal material for replacing wood, and is a novel upgraded product of the wood-plastic composite.
Description
Technical field
The present invention relates to a kind of wood plastic composite, particularly relate to a kind of anti-ageing wood-plastic composite board and preparation method thereof.
Background technology
In recent years; The enhancing of Along with people's environmental protection consciousness; Environmental friendliness, wood plastic composite renewable, that can be recycled more and more receive people's attention, and application has related to car interior trim base material, construction and decoration, ornament materials; Open-air tables and chairs, stool, Picnic table that occasions such as park, court, street are used, numerous areas such as packaging material and furniture.Wood plastic composite have material homogeneous, size than timber stablize, be difficult for cracking, buckling deformation and do not have defectives such as timber knot, twill; Processability with thermoplastic is extruded, technology such as mold pressing, injection moulding all can be used to moulding, and equipment attrition is little; Goods can be pressed into the beginning of tongue and groove shape, space pattern and other requirement, need not to carry out complicated secondary operations; Can be made into various goods lucuriant in design through adding technologies such as colouring agent, japanning, overlay film or composite skins; In light weight, energy consumption is little; Easy to process, can saw, plane is with bonding or be connected fixing with nail, bolt; Need not utilize poisonous chemical substance to handle, not contain formaldehyde; The outward appearance that timber is arranged is than the high hardness of plastic products.Not only reusable and recycling after discarded; And can biodegradation, help plurality of advantages such as environmental protection, but also exist some obviously not enough; Like long-term use; Particularly use in the open, aging phenomena such as ftractureing, fade easily, thus shortened its service life, define its scope of application.So, traditional wood plastic composite is carried out modification, it is just very necessary to improve its resistance to ag(e)ing.
Summary of the invention
The objective of the invention is provides a kind of anti-ageing wood-plastic composite board and preparation method thereof to above-mentioned weak point; This sheet material also has characteristics such as ageing-resistant, colour-fast, without putrefaction except that having recyclable, renewable, the higher characteristics such as mechanical property of traditional wood and plastic composite flitch.
The objective of the invention is to realize through following technical scheme:
A kind of anti-ageing wood-plastic composite board is formed by the feedstock production that comprises following parts by weight:
Wood powder 60-100
Paris white 10-16
Plastic pellet 25-35
Maleic anhydride 1-5
Stearate 0.3-0.7
Pigment 0.2-0.3
Antiseptic 0.2-0.3
Antioxidant 0.2-0.3
Ultra-violet absorber 0.2-0.3
A kind of anti-ageing wood-plastic composite board of the present invention, wherein said wood powder particle diameter order number is the 60-80 order.
A kind of anti-ageing wood-plastic composite board of the present invention, wherein said Paris white are precipitated calcium carbonate, and particle diameter order number is 800 orders.
A kind of anti-ageing wood-plastic composite board of the present invention, wherein said plastic pellet adopt a kind of in polyethylene, polypropylene, polystyrene, the polyvinyl chloride.
A kind of anti-ageing wood-plastic composite board of the present invention, wherein said stearate are a kind of in zinc stearate, the calcium stearate.
A kind of anti-ageing wood-plastic composite board of the present invention, wherein said pigment are a kind of in green of iron oxide red, iron oxide yellow, iron oxide black, iron.
A kind of anti-ageing wood-plastic composite board of the present invention, wherein said antiseptic are a kind of in nano zine oxide, the nano phase ag_2 o.
A kind of anti-ageing wood-plastic composite board of the present invention; Wherein said antioxidant is β-(3; The 5-di-tert-butyl-hydroxy phenyl) one or both in the positive octadecanol ester of propionic acid, butyl hydroxy toluene, four [β-(3, the 5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester.
A kind of anti-ageing wood-plastic composite board of the present invention, wherein said ultra-violet absorber are UV-531.
Preferably, a kind of anti-ageing wood-plastic composite board is formed by the feedstock production that comprises following parts by weight:
Wood powder 70-90
Paris white 12-14
Plastic pellet 26-34
Maleic anhydride 2-4
Stearate 0.4-0.6
Pigment 0.22-0.28
Antiseptic 0.22-0.28
Antioxidant 0.22-0.28
Ultra-violet absorber 0.22-0.28
More preferably, a kind of anti-ageing wood-plastic composite board is formed by the feedstock production that comprises following parts by weight:
Wood powder 80
Paris white 13
Plastic pellet 28
Maleic anhydride 3
Stearate 0.5
Pigment 0.25
Antiseptic 0.25
Antioxidant 0.25
Ultra-violet absorber 0.25
The preparation method of a kind of anti-ageing wood-plastic composite board of the present invention, it may further comprise the steps:
(1), takes by weighing each raw material by formula ratio;
(2), wood powder, Paris white, maleic anhydride, stearate, pigment, antiseptic, antioxidant, ultra-violet absorber are placed in the mechanical stirring kettle stirred 6-10 minute;
(3), in above-mentioned compound, add plastic pellet, behind the mixing, adopt extruder to carry out melt blending and granulation, 140 ℃-190 ℃ of extruder barrel temperature, 160 ℃-210 ℃ of die head temperatures obtain the anti-ageing wood-plastic composite particle;
(4), adopt machine with gained anti-ageing wood-plastic composite particle extrusion molding anti-ageing wood-plastic composite board, 145 ℃-190 ℃ of extruder barrel temperature, 150 ℃-205 ℃ of die head temperatures are promptly accomplished.
A kind of anti-ageing wood-plastic composite board of the present invention, it is convenient to manufacture, and the conventional plastic production technology need not to improve and promptly can be used for its production and processing and fabricating, and mechanization degree is higher in the production process, and required labour is less, and production cost is low; A kind of anti-ageing wood-plastic composite board is compared with common plastics sheet material, and used amount of plastic reduces, and is friendly more to environment; Modulus is higher, and rigidity is bigger, more creep resistant; Simultaneously can carry out twice laid, reduce the products material cost industrial or agricultural leftover pieces such as wood powders; A kind of anti-ageing wood-plastic composite board is compared with other wood plastic composite; Have characteristics such as ageing-resistant degree is higher, colour-fast, without putrefaction; Longer service life can be widely used in the interior trim base material of the vehicles such as car, construction and decoration, ornament materials; Open-air tables and chairs, stool, Picnic table that occasions such as park, court, municipal administration are used, numerous areas such as packaging material and furniture.
The specific embodiment
Below adopt embodiment to specify a kind of anti-ageing wood-plastic composite board of the present invention and preparation method thereof.
Embodiment 1
Wood powder (70 order) 80kg Paris white 13kg polyethylene particles 28kg
Maleic anhydride 3kg zinc stearate 0.5kg iron oxide red 0.25kg
Nano zine oxide 0.25kg UV-531 0.22kg
β-(3, the 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid 0.25kg
Wood powder (80 order) 90kg Paris white 14kg polystyrene particle 34kg
Maleic anhydride 2kg zinc stearate 0.4kg iron oxide yellow 0.22kg
Nano zine oxide 0.22kg UV-531 0.25kg
Butyl hydroxy toluene 0.28kg
(1), takes by weighing each raw material by formula ratio;
(2), wood powder, Paris white, maleic anhydride, zinc stearate, iron oxide yellow, nano zine oxide, butyl hydroxy toluene and UV-531 are placed in the mechanical stirring kettle stirred 10 minutes;
(3), add the polystyrene plastics particle in the above-mentioned compound, behind the mixing, adopt extruder to carry out melt blending and granulation, 160 ℃-190 ℃ of extruder barrel temperature, 210 ℃ of die head temperatures obtain the anti-ageing wood-plastic composite particle;
(4), adopt machine with gained anti-ageing wood-plastic composite particle extrusion molding anti-ageing wood-plastic composite board, 170 ℃-190 ℃ of extruder barrel temperature, 205 ℃ of die head temperatures are promptly accomplished.
Embodiment 3
Wood powder (80 order) 60kg Paris white 10kg particulate polyvinyl chloride 35kg
The green 0.28kg of maleic anhydride 4kg calcium stearate 0.3kg iron
Nano phase ag_2 o 0.25kg UV-531 0.3kg
β-(3, the 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid 0.14kg
Butyl hydroxy toluene 0.14kg
(1), takes by weighing each raw material by formula ratio;
(2), wood powder, Paris white, maleic anhydride, calcium stearate, iron is green, nano phase ag_2 o, butyl hydroxy toluene, β-positive octadecanol ester of (3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid and UV-531 place in the mechanical stirring kettle and stirred 8 minutes;
(3), add the igelite particle in the above-mentioned compound, behind the mixing, adopt extruder to carry out melt blending and granulation, 140 ℃-175 ℃ of extruder barrel temperature, 160 ℃ of die head temperatures obtain the anti-ageing wood-plastic composite particle;
(4), adopt machine with gained anti-ageing wood-plastic composite particle extrusion molding anti-ageing wood-plastic composite board, 145 ℃-170 ℃ of extruder barrel temperature, 185 ℃ of die head temperatures are promptly accomplished.
Embodiment 4
Wood powder (60 order) 100kg Paris white 16kg polypropylene particles 26kg
The iron black 0.3kg of maleic anhydride 5kg calcium stearate 0.7kg
Nano phase ag_2 o 0.28kg UV-531 0.3kg
Four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester 0.22kg
(1), takes by weighing each raw material by formula ratio;
(2), wood powder, Paris white, maleic anhydride, calcium stearate, iron oxide black, nano phase ag_2 o, four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester and UV-531 are placed the interior stirring of mechanical stirring kettle 6 minutes;
(3), add the polypropylene plastics particle in the above-mentioned compound, behind the mixing, adopt extruder to carry out melt blending and granulation, 165 ℃-190 ℃ of extruder barrel temperature, 170 ℃ of die head temperatures obtain the anti-ageing wood-plastic composite particle;
(4), adopt machine with gained anti-ageing wood-plastic composite particle extrusion molding anti-ageing wood-plastic composite board, 140 ℃-190 ℃ of extruder barrel temperature, 200 ℃ of die head temperatures are promptly accomplished.
Embodiment 5
Wood powder (70 order) 90kg Paris white 10kg polypropylene particles 28kg
The iron black 0.2kg of maleic anhydride 1kg calcium stearate 0.6kg
Nano zine oxide 0.2kg UV-531 0.2kg
Four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester 0.15kg
Butyl hydroxy toluene 0.15kg
(1), takes by weighing each raw material by formula ratio;
(2), wood powder, Paris white, maleic anhydride, calcium stearate, iron oxide black, zinc oxide, four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester, butyl hydroxy toluene and UV-531 are placed the interior stirring of mechanical stirring kettle 7 minutes;
(3), add the polypropylene plastics particle in the above-mentioned compound, behind the mixing, adopt extruder to carry out melt blending and granulation, 155 ℃-185 ℃ of extruder barrel temperature, 190 ℃ of die head temperatures obtain the anti-ageing wood-plastic composite particle;
(4), adopt machine with gained anti-ageing wood-plastic composite particle extrusion molding anti-ageing wood-plastic composite board, 155 ℃-185 ℃ of extruder barrel temperature, 185 ℃ of die head temperatures are promptly accomplished.
Embodiment 6
Wood powder (80 order) 70kg Paris white 12kg polyethylene particles 25kg
Maleic anhydride 2.6kg calcium stearate 0.52kg iron oxide red 0.24kg
Nano zine oxide 0.3kg UV-531 0.28kg
β-(3, the 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid 0.15kg
Four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester 0.05kg
(1), takes by weighing each raw material by formula ratio;
(2), with wood powder, Paris white, maleic anhydride, calcium stearate, iron oxide red, nano zine oxide, the β-positive octadecanol ester of (3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid, four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester 0.15
And UV-531 places, and mechanical stirring kettle is interior to be stirred 9 minutes;
(3), add the vinyon particle in the above-mentioned compound, behind the mixing, adopt extruder to carry out melt blending and granulation, 145 ℃-175 ℃ of extruder barrel temperature, 185 ℃ of die head temperatures obtain the anti-ageing wood-plastic composite particle;
(4), adopt machine with gained anti-ageing wood-plastic composite particle extrusion molding anti-ageing wood-plastic composite board, 160 ℃-178 ℃ of extruder barrel temperature, 150 ℃ of die head temperatures are promptly accomplished.
Below through detecting the effect of the anti-ageing wood-plastic composite board that proves the embodiment of the invention 1, its testing result is following:
MOR: greater than 23MPa, quiet bent modulus: greater than 1.6GPa
90 ℃ of following thermo-oxidative ageing 3000h, the MOR conservation rate: greater than 85%, quiet bent modulus conservation rate: greater than 88%, phenomenons such as no efflorescence, cracking
Ultraviolet light and aging 2000h, the MOR conservation rate: greater than 85%, quiet bent modulus conservation rate: greater than 85%, phenomenons such as no efflorescence, cracking
Above result all meets or exceeds relevant criterion.
Claims (12)
1. anti-ageing wood-plastic composite board is formed by the feedstock production of following parts by weight:
Wood powder 60-100
Paris white 10-16
Plastic pellet 25-35
Maleic anhydride 1-5
Stearate 0.3-0.7
Pigment 0.2-0.3
Antiseptic 0.2-0.3
Antioxidant 0.2-0.3
Ultra-violet absorber 0.2-0.3.
2. a kind of anti-ageing wood-plastic composite board according to claim 1 is formed by the feedstock production of following parts by weight:
Wood powder 70-90
Paris white 12-14
Plastic pellet 26-34
Maleic anhydride 2-4
Stearate 0.4-0.6
Pigment 0.22-0.28
Antiseptic 0.22-0.28
Antioxidant 0.22-0.28
Ultra-violet absorber 0.22-0.28.
3. a kind of anti-ageing wood-plastic composite board according to claim 2 is formed by the feedstock production of following parts by weight:
Wood powder 80
Paris white 13
Plastic pellet 28
Maleic anhydride 3
Stearate 0.5
Pigment 0.25
Antiseptic 0.25
Antioxidant 0.25
Ultra-violet absorber 0.25.
4. according to the described a kind of anti-ageing wood-plastic composite board of the arbitrary claim of claim 1-3, it is characterized in that described wood powder particle diameter order number is the 60-80 order.
5. according to the described a kind of anti-ageing wood-plastic composite board of the arbitrary claim of claim 1-3, it is characterized in that described Paris white is a precipitated calcium carbonate, particle diameter order number is 800 orders.
6. according to the described a kind of anti-ageing wood-plastic composite board of the arbitrary claim of claim 1-3, it is characterized in that described plastic pellet adopts in polyethylene, polypropylene, the polystyrene, polyvinyl chloride a kind of.
7. according to the described a kind of anti-ageing wood-plastic composite board of the arbitrary claim of claim 1-3, it is characterized in that described stearate is a kind of in zinc stearate, the calcium stearate.
8. according to the described a kind of anti-ageing wood-plastic composite board of the arbitrary claim of claim 1-3, it is characterized in that described pigment is a kind of in green of iron oxide red, iron oxide yellow, iron oxide black, iron.
9. according to the described a kind of anti-ageing wood-plastic composite board of the arbitrary claim of claim 1-3, it is characterized in that described antiseptic is a kind of in nano zine oxide, the nano phase ag_2 o.
10. according to the described a kind of anti-ageing wood-plastic composite board of the arbitrary claim of claim 1-3; It is characterized in that described antioxidant is β-(3; The 5-di-tert-butyl-hydroxy phenyl) one or both in the positive octadecanol ester of propionic acid, butyl hydroxy toluene, four [β-(3, the 5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester.
11., it is characterized in that described ultra-violet absorber is a UV-531 according to the described a kind of anti-ageing wood-plastic composite board of the arbitrary claim of claim 1-3.
12., it is characterized in that its preparation method is according to the preparation method of the described a kind of anti-ageing wood-plastic composite board of the arbitrary claim of claim 1-3:
(1), takes by weighing each raw material by formula ratio;
(2), wood powder, Paris white, maleic anhydride, stearate, pigment, antiseptic, antioxidant, ultra-violet absorber are placed in the mechanical stirring kettle stirred 6-10 minute;
(3), in above-mentioned compound, add plastic pellet, behind the mixing, adopt extruder to carry out melt blending and granulation, 140 ℃-190 ℃ of extruder barrel temperature, 160 ℃-210 ℃ of die head temperatures obtain the anti-ageing wood-plastic composite particle;
(4), adopt machine with gained anti-ageing wood-plastic composite particle extrusion molding anti-ageing wood-plastic composite board, 145 ℃-190 ℃ of extruder barrel temperature, 150 ℃-205 ℃ of die head temperatures are promptly accomplished.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102346037A CN101708617B (en) | 2009-11-25 | 2009-11-25 | Anti-ageing wood-plastic composite board and preparation method thereof |
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| CN2009102346037A CN101708617B (en) | 2009-11-25 | 2009-11-25 | Anti-ageing wood-plastic composite board and preparation method thereof |
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| CN101708617B true CN101708617B (en) | 2012-05-09 |
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