Summary of the invention
The objective of the invention is provides a kind of high-intensity wood plastic composite sheet material and preparation method thereof at above-mentioned weak point.
The objective of the invention is to be achieved through the following technical solutions:
A kind of high-intensity wood plastic composite sheet material is formed by the feedstock production that comprises following parts by weight:
A kind of high-intensity wood plastic composite sheet material of the present invention, wherein said wood powder particle diameter order number is the 60-80 order.
A kind of high-intensity wood plastic composite sheet material of the present invention, wherein said plastic pellet adopt a kind of in polyethylene, polypropylene, polyvinyl chloride, the polystyrene.
A kind of high-intensity wood plastic composite sheet material of the present invention, wherein said maleic anhydride graft plastic pellet is a maleic anhydride grafted polyethylene, maleic anhydride inoculated polypropylene, the maleic anhydride graft polyvinyl chloride, a kind of in the maleic anhydride graft polystyrene, it selects for use corresponding with plastic pellet, be that plastic pellet is when being polyethylene, select maleic anhydride grafted polyethylene for use, when plastic pellet is polypropylene, select maleic anhydride inoculated polypropylene for use, when plastic pellet is polyvinyl chloride, select the maleic anhydride graft polyvinyl chloride for use, when plastic pellet is polystyrene, select the maleic anhydride graft polystyrene for use.
A kind of high-intensity wood plastic composite sheet material of the present invention, wherein said modified nano-titanium dioxide is mixed with silane coupler by nano titanium oxide, and vacuum drying is made; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane.
A kind of high-intensity wood plastic composite sheet material of the present invention, wherein said chopped glass fiber length is 3-4mm.
A kind of high-intensity wood plastic composite sheet material of the present invention, wherein said white oil are No. 15 technical white oils.
A kind of high-intensity wood plastic composite sheet material 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-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
Preferably, a kind of high-intensity wood plastic composite sheet material is formed by the feedstock production that comprises following parts by weight:
More preferably, a kind of high-intensity wood plastic composite sheet material is formed by the feedstock production that comprises following parts by weight:
A kind of high-intensity wood plastic composite preparation of plates method of the present invention, it may further comprise the steps:
(1), with silane coupler and water by weight 1: 1-5 mixes, and wherein water is solvent.
(2), with the silane coupler of nano titanium oxide and dilution by weight 100: 2-6 mixes, and under 40 ℃ of-80 ℃ of conditions, vacuum drying 3-6 hour, makes modified nano-titanium dioxide;
(3), take by weighing each raw material by formula ratio;
(4), plastic pellet, maleic anhydride graft plastic pellet, calcium stearate, modified nano-titanium dioxide are placed stir 6-1 () minute in the mechanical stirring kettle, extruding pelletization, 140 ℃-190 ℃ of extruder barrel temperature, 160 ℃-210 ℃ of die head temperatures obtain the modified plastics particle;
(5), above-mentioned modified plastics particle, wood powder, terpene resin, chopped glass fiber, white oil, antioxidant etc. are placed in the mechanical stirring kettle and mechanical agitation 3-5 minute once more;
(6), behind the mixing, adopt extruder to carry out melt blending and granulation, 140 ℃-195 ℃ of extruder barrel temperature, 155 ℃-205 ℃ of die head temperatures obtain the high-intensity wood plastic composite particle;
(7), adopt machine with gained high-intensity wood plastic composite particle extrusion molding high-intensity wood plastic composite sheet material, 145 ℃-190 ℃ of extruder barrel temperature, 165 ℃-205 ℃ of die head temperatures are promptly finished.
A kind of high-intensity wood plastic composite sheet material of the present invention, it is convenient to manufacture, and traditional plastic production technology need not to improve and promptly can be used for its production and processing, and mechanization degree is higher in the production process, and required labour is less, and production cost is low.High-intensity wood plastic composite sheet material is compared with common plastics sheet material, and used amount of plastic reduces, and friendly more to environment, modulus is higher, and rigidity is bigger, and creep resistant can be carried out twice laid to this industrial or agricultural leftover pieces of wood powder simultaneously more, reduces the products material cost; High-intensity wood plastic composite sheet material is compared with other wood plastic composite, and the MOR equal strength is higher, and mechanical property is excellent more, thereby longer service life, can be widely used in numerous areas such as traffic, fitting-up, municipal gardens, packing.
The specific embodiment
Below adopt embodiment to specify a kind of high-intensity wood plastic composite sheet material of the present invention and preparation method thereof.
Embodiment 1
(1), silane coupler and water were mixed by weight 1: 1, wherein water is solvent.
(2), the silane coupler of nano titanium oxide and dilution was mixed by weight 100: 6, under 60 ℃ of conditions, modified nano-titanium dioxide is made in vacuum drying 4 hours;
(3), take by weighing each raw material by formula ratio;
(4), plastic pellet, maleic anhydride graft plastic pellet, calcium stearate, modified nano-titanium dioxide are placed in the mechanical stirring kettle and to stir 6-10 minute, extruding pelletization, 140 ℃-165 ℃ of extruder barrel temperature, 160 ℃-185 ℃ of die head temperatures obtain the modified plastics particle;
(5), above-mentioned modified plastics particle, wood powder, terpene resin, chopped glass fiber, white oil, (β-positive octadecanol ester of (3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) etc. are placed in the mechanical stirring kettle and mechanical agitation 3 minutes once more;
(6), behind the mixing, adopt extruder to carry out melt blending and granulation, 140 ℃-180 ℃ of extruder barrel temperature, 155 ℃-185 ℃ of die head temperatures obtain the high-intensity wood plastic composite particle;
(7), adopt machine with gained high-intensity wood plastic composite particle extrusion molding high-intensity wood plastic composite sheet material, 145 ℃-180 ℃ of extruder barrel temperature, 165 ℃-205 ℃ of die head temperatures are promptly finished.
Embodiment 2
(1), silane coupler and water were mixed by weight 1: 5, wherein water is solvent.
(2), the silane coupler of nano titanium oxide and dilution was mixed by weight 100: 4, under 60 ℃ of conditions, modified nano-titanium dioxide is made in vacuum drying 3 hours;
(3), take by weighing each raw material by formula ratio;
(4), plastic pellet, maleic anhydride graft plastic pellet, calcium stearate, modified nano-titanium dioxide are placed in the mechanical stirring kettle and to stir 6-10 minute, extruding pelletization, 165 ℃-190 ℃ of extruder barrel temperature, 180 ℃-210 ℃ of die head temperatures obtain the modified plastics particle;
(5), above-mentioned modified plastics particle, wood powder, terpene resin, chopped glass fiber, white oil, four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester etc. are placed in the mechanical stirring kettle and mechanical agitation 5 minutes once more;
(6), behind the mixing, adopt extruder to carry out melt blending and granulation, 160 ℃-195 ℃ of extruder barrel temperature, 175 ℃-205 ℃ of die head temperatures obtain the high-intensity wood plastic composite particle;
(7), adopt machine with gained high-intensity wood plastic composite particle extrusion molding high-intensity wood plastic composite sheet material, 175 ℃-190 ℃ of extruder barrel temperature, 185 ℃-200 ℃ of die head temperatures are promptly finished.
Embodiment 3
(1), silane coupler and water were mixed by weight 1: 4, wherein water is solvent.
(2), the silane coupler of nano titanium oxide and dilution was mixed by weight 100: 2, under 40 ℃ of conditions, modified nano-titanium dioxide is made in vacuum drying 6 hours;
(3), take by weighing each raw material by formula ratio;
(4), plastic pellet, maleic anhydride graft plastic pellet, calcium stearate, modified nano-titanium dioxide are placed in the mechanical stirring kettle and to stir 6-10 minute, extruding pelletization, 160 ℃-180 ℃ of extruder barrel temperature, 170 ℃-200 ℃ of die head temperatures obtain the modified plastics particle;
(5), above-mentioned modified plastics particle, wood powder, terpene resin, chopped glass fiber, white oil, butyl hydroxy toluene etc. are placed in the mechanical stirring kettle and mechanical agitation 4 minutes once more;
(6), behind the mixing, adopt extruder to carry out melt blending and granulation, 140 ℃-185 ℃ of extruder barrel temperature, 155 ℃-195 ℃ of die head temperatures obtain the high-intensity wood plastic composite particle;
(7), adopt machine with gained high-intensity wood plastic composite particle extrusion molding high-intensity wood plastic composite sheet material, 145 ℃-180 ℃ of extruder barrel temperature, 170 ℃-190 ℃ of die head temperatures are promptly finished.
Embodiment 4
(1), silane coupler and water were mixed by weight 1: 2, wherein water is solvent.
(2), the silane coupler of nano titanium oxide and dilution was mixed by weight 100: 3, under 70 ℃ of conditions, modified nano-titanium dioxide is made in vacuum drying 4 hours;
(3), take by weighing each raw material by formula ratio;
(4), plastic pellet, maleic anhydride graft plastic pellet, calcium stearate, modified nano-titanium dioxide are placed in the mechanical stirring kettle and to stir 6-10 minute, extruding pelletization, 143 ℃-175 ℃ of extruder barrel temperature, 160 ℃-185 ℃ of die head temperatures obtain the modified plastics particle;
(5), above-mentioned modified plastics particle, wood powder, terpene resin, chopped glass fiber, white oil, butyl hydroxy toluene, β-(3, the 5-di-tert-butyl-hydroxy phenyl) positive octadecanol ester of propionic acid etc. are placed in the mechanical stirring kettle and mechanical agitation 4 minutes once more;
(6), behind the mixing, adopt extruder to carry out melt blending and granulation, 140 ℃-175 ℃ of extruder barrel temperature, 155 ℃-170 ℃ of die head temperatures obtain the high-intensity wood plastic composite particle;
(7), adopt machine with gained high-intensity wood plastic composite particle extrusion molding high-intensity wood plastic composite sheet material, 145 ℃-170 ℃ of extruder barrel temperature, 165 ℃-180 ℃ of die head temperatures are promptly finished.
Embodiment 5
(1), silane coupler and water were mixed by weight 1: 4, wherein water is solvent.
(2), the silane coupler of nano titanium oxide and dilution was mixed by weight 100: 5, under 50 ℃ of conditions, modified nano-titanium dioxide is made in vacuum drying 5 hours;
(3), take by weighing each raw material by formula ratio;
(4), plastic pellet, maleic anhydride graft plastic pellet, calcium stearate, modified nano-titanium dioxide are placed in the mechanical stirring kettle and to stir 6-10 minute, extruding pelletization, 155 ℃-180 ℃ of extruder barrel temperature, 165 ℃-190 ℃ of die head temperatures obtain the modified plastics particle;
(5), above-mentioned modified plastics particle, wood powder, terpene resin, chopped glass fiber, white oil, butyl hydroxy toluene, four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester etc. are placed in the mechanical stirring kettle and mechanical agitation 3 minutes once more;
(6), behind the mixing, adopt extruder to carry out melt blending and granulation, 155 ℃-175 ℃ of extruder barrel temperature, 160 ℃-178 ℃ of die head temperatures obtain the high-intensity wood plastic composite particle;
(7), adopt machine with gained high-intensity wood plastic composite particle extrusion molding high-intensity wood plastic composite sheet material, 155 ℃-170 ℃ of extruder barrel temperature, 165 ℃-180 ℃ of die head temperatures are promptly finished.
Embodiment 6
(1), silane coupler and water were mixed by weight 1: 3, wherein water is solvent.
(2), the silane coupler of nano titanium oxide and dilution was mixed by weight 100: 6, under 80 ℃ of conditions, modified nano-titanium dioxide is made in vacuum drying 4.5 hours;
(3), take by weighing each raw material by formula ratio;
(4), plastic pellet, maleic anhydride graft plastic pellet, calcium stearate, modified nano-titanium dioxide are placed in the mechanical stirring kettle and to stir 6-10 minute, extruding pelletization, 170 ℃-190 ℃ of extruder barrel temperature, 180 ℃-210 ℃ of die head temperatures obtain the modified plastics particle;
(5), with above-mentioned modified plastics particle, wood powder, terpene resin, chopped glass fiber, white oil, butyl hydroxy toluene, β-(3, the 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid, four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester etc. places in the mechanical stirring kettle and mechanical agitation 3.5 minutes once more;
(6), behind the mixing, adopt extruder to carry out melt blending and granulation, 162 ℃-195 ℃ of extruder barrel temperature, 170 ℃-205 ℃ of die head temperatures obtain the high-intensity wood plastic composite particle;
(7), adopt machine with gained high-intensity wood plastic composite particle extrusion molding high-intensity wood plastic composite sheet material, 158 ℃-190 ℃ of extruder barrel temperature, 190 ℃-205 ℃ of die head temperatures are promptly finished.
Below by detecting the effect of the proof embodiment of the invention 1, its testing result is as follows:
MOR: 28MPa, quiet bent modulus: 2.0GPa, low temperature drop impact crack-free
Above result obviously surpasses the requirement of the forestry industry standard LY/T 1613-2004 of the People's Republic of China (PRC).