The specific embodiment
With reference to accompanying drawing 1, a kind of kenaf-plastics composite sheet material is made of two-layer fibrilia modified plastic layer 1,3, flaxen fiber cloth plastic layer 2, and mold pressing has flaxen fiber cloth plastic layer 2 between fibrilia modified plastic layer 1 and fibrilia modified plastic layer 3.
Fibrilia modified plastic layer 1,3 mixes calendering by modified plastics particle 4, flaxen fiber 5, interface bulking agent and forms.Modified plastics particle 4 is formed by nano titanium oxide, silane coupler, antioxidant, plastic pellet mixing extruding pelletization.
Flaxen fiber cloth 6 mold pressings that flaxen fiber cloth plastic layer 2 was handled by plastic pellet 7 and several layers silane coupler form.
Described plastic pellet adopts a kind of in polyethylene, polypropylene, polystyrene, the polyvinyl chloride.
Described flaxen fiber cloth adopts a kind of in ramee cloth, hemp cloth, sisal fiber cloth, flax fiber cloth, the tossa cloth.
Described flaxen fiber adopts a kind of or its mixture in ramee, hemp, sisal fiber, flax fiber, the tossa.
Described interface bulking agent adopts a kind of in maleic anhydride inoculated polypropylene (MAPP), maleic anhydride grafted polyethylene, the maleic anhydride graft polystyrene;
Described antioxidant adopts a kind of among 1010 (A), the BHT.1010 (A) are four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester.BHT is 2, the 6-di-tert-butyl-4-methy phenol.
Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane.
Embodiment 1: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 1, take by weighing silane coupler 1g, water 1g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed mass ratio 100: 2, the silane coupler 0.002kg that takes by weighing nano titanium oxide 0.1kg and above-mentioned dilution mixes, under 40 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 6 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 1, take by weighing silane coupler 0.01kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 1kg is immersed in the silane coupler of dilute with water, soaks after 30 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 40 ℃ of temperature, vacuum drying 3 hours; Described flaxen fiber cloth adopts ramee cloth;
(4) vinyon particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 1: 0.5, take by weighing vinyon particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.1kg, antioxidant 1010 (A) 0.05kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 140 ℃, obtains the modified poly ethylene plastic pellet;
(5) above-mentioned modified poly ethylene plastic pellet and interface bulking agent, flaxen fiber were pressed mass ratio 100: 1: 10, take by weighing modified poly ethylene plastic pellet 10kg, interface bulking agent maleic anhydride grafted polyethylene 0.1kg, flaxen fiber 1kg, put into container, mechanical mixture is even, rolls into fibrilia modified vinyon layer through calender then; Fibrilia modified vinyon layer thickness is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts ramee;
(6) place a fibrilia modified vinyon layer in the bottom of compression molding mold cavity, lay vinyon particle on fibrilia modified vinyon layer, put on vinyon particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay vinyon particle on the above-mentioned flaxen fiber cloth of handling with silane coupler again, the fibrilia modified vinyon layer of lay one deck above the vinyon particle more at last, matched moulds, preheating is after 5 minutes under 145 ℃ of temperature, adopt the pressure compression molding of 5MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of vinyon particle and silane coupler is 100: 10, takes by weighing the flaxen fiber cloth 1kg that vinyon particle 10kg, silane coupler handled.
The mold pressing between two-layer fibrilia modified vinyon layer of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by vinyon particle and silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 35MPa, stretch modulus 3.6GPa, bending strength 71.6MPa, bending modulus 1.9GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 56%.
Embodiment 2: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 5, take by weighing silane coupler 5g, water 25g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed quality 100: 6, the silane coupler 0.03kg that takes by weighing nano titanium oxide 0.5kg and above-mentioned dilution mixes, and under 80 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 3 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 5, take by weighing silane coupler 0.25kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 5kg is immersed in the silane coupler of dilute with water, soaks after 120 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 80 ℃ of temperature, vacuum drying 6 hours; Described flaxen fiber cloth adopts hemp cloth;
(4) polypropylene plastics particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 5: 2, take by weighing polypropylene plastics particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.5kg, antioxidant BHT 0.2kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 175 ℃, obtains the modified polypropylene plastic particle;
(5) above-mentioned modified polypropylene plastic particle and interface bulking agent, flaxen fiber were pressed mass ratio 100: 20: 30, take by weighing modified polypropylene plastic particle 10kg, interface bulking agent maleic anhydride inoculated polypropylene (MAPP) 2kg, flaxen fiber 3kg, put into container, mechanical mixture is even, rolls into the fibrilia modified polypropylene plastics bed of material through calender then; Fibrilia modified polypropylene plastics thickness of feed layer is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts hemp;
(6) place a fibrilia modified polypropylene plastics bed of material in the bottom of compression molding mold cavity, put the polypropylene plastics particle on fibrilia modified polypropylene plastics bed of material upper berth, put on polypropylene plastics particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay polypropylene plastics particle on the above-mentioned flaxen fiber cloth of handling with silane coupler, on the polypropylene plastics particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, lay polypropylene plastics particle on the flaxen fiber cloth of handling with silane coupler, on the polypropylene plastics particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, on the flaxen fiber cloth of handling with silane coupler, repave and put the polypropylene plastics particle, the fibrilia modified polypropylene plastics bed of material of lay one deck above the polypropylene plastics particle more at last, matched moulds, preheating is after 10 minutes under 175 ℃ of temperature, adopt the pressure compression molding of 20MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of polypropylene plastics particle and silane coupler is 100: 50, takes by weighing the flaxen fiber cloth 5kg that polypropylene plastics particle 10kg, silane coupler handled.
The mold pressing between the two-layer fibrilia modified polypropylene plastics bed of material of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by polypropylene plastics particle and three layers of silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 45MPa, stretch modulus 4.0GPa, bending strength 91.6MPa, bending modulus 2.1GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 61%.
Embodiment 3: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 1, take by weighing silane coupler 5g, water 5g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed mass ratio 100: 2, the silane coupler 0.01kg that takes by weighing nano titanium oxide 0.5kg and above-mentioned dilution mixes, under 40 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 6 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 1, take by weighing silane coupler 0.05kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 5kg is immersed in the silane coupler of dilute with water, soaks after 30 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 40 ℃ of temperature, vacuum drying 6 hours; Described flaxen fiber cloth adopts sisal fiber cloth;
(4) igelite particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 5: 2, take by weighing igelite particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.5kg, antioxidant BHT 0.2kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 180 ℃, obtains the modified polyvinyl chloride plastic pellet;
(5) above-mentioned modified polyvinyl chloride plastic pellet and interface bulking agent, flaxen fiber were pressed mass ratio 100: 1: 10, take by weighing modified polyvinyl chloride plastic pellet 10kg, interface bulking agent maleic anhydride inoculated polypropylene 0.1kg, flaxen fiber 1kg, put into container, mechanical mixture is even, rolls into the fibrilia modified polyvinyl chloride plastic bed of material through calender then; Fibrilia modified polyvinyl chloride plastic thickness of feed layer is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts sisal fiber;
(6) place a fibrilia modified polyvinyl chloride plastic bed of material in the bottom of compression molding mold cavity, put the igelite particle on fibrilia modified polyvinyl chloride plastic bed of material upper berth, put on igelite particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay igelite particle on the above-mentioned flaxen fiber cloth of handling with silane coupler again, the flaxen fiber cloth mass ratio that igelite particle and silane coupler were handled 100: 10, the fibrilia modified polyvinyl chloride plastic bed of material of lay one deck above plastic pellet more at last, matched moulds, preheating is after 5 minutes in 185 ℃ of scopes, adopt the pressure compression molding of 5MPa, make kenaf-plastics composite sheet material.Wherein the flaxen fiber cloth mass ratio handled of vinyon particle and silane coupler is 100: 10, takes by weighing the flaxen fiber cloth 5kg that vinyon particle 50kg, silane coupler handled.
The mold pressing between the two-layer fibrilia modified polyvinyl chloride plastic bed of material of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by igelite particle and silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 33.9MPa, stretch modulus 3.4GPa, bending strength 66.6MPa, bending modulus 1.9GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 55%.
Embodiment 4: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 3, take by weighing silane coupler 3g, water 9g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed mass ratio 100: 4, the silane coupler 0.012kg that takes by weighing nano titanium oxide 0.3kg and above-mentioned dilution mixes, under 60 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 4.5 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 3, take by weighing silane coupler 0.09kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 3kg is immersed in the silane coupler of dilute with water, soaks after 80 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 60 ℃ of temperature, vacuum drying 4.5 hours; Described flaxen fiber cloth adopts flax fiber cloth;
(4) polystyrene plastics particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 3: 1.3, take by weighing vinyon particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.3kg, antioxidant 1010 (A) 0.13kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 200 ℃, obtains the modified polystyrene plastic particle;
(5) above-mentioned modified polystyrene plastic particle and interface bulking agent, flaxen fiber were pressed mass ratio 100: 10: 20, take by weighing modified polystyrene plastic particle 10kg, interface bulking agent maleic anhydride graft polystyrene 1kg, flaxen fiber 2kg, put into container, mechanical mixture is even, rolls into fibrilia modified polystyrene plastics layer through calender then; Fibrilia modified polystyrene plastics layer thickness is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts flax fiber;
(6) place a fibrilia modified polystyrene plastics layer in the bottom of compression molding mold cavity, lay polystyrene plastics particle on fibrilia modified polystyrene plastics layer, put on polystyrene plastics particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay polystyrene plastics particle on the above-mentioned flaxen fiber cloth of handling with silane coupler, on the polystyrene plastics particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, lay polystyrene plastics particle on the flaxen fiber cloth of handling with silane coupler, the fibrilia modified polystyrene plastics layer of lay one deck above the polystyrene plastics particle more at last, matched moulds, preheating is after 8 minutes under 210 ℃ of temperature, adopt the pressure compression molding of 20MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of polystyrene plastics particle and silane coupler is 100: 30, takes by weighing the flaxen fiber cloth 3kg that polystyrene plastics particle 10kg, silane coupler handled.
The mold pressing between two-layer fibrilia modified polystyrene plastics layer of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by polystyrene plastics particle and two-layer silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 34.5MPa, stretch modulus 3.8GPa, bending strength 78.5MPa, bending modulus 2.5GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 60.1%.
Embodiment 5: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 5, take by weighing silane coupler 5g, water 25g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed quality 100: 6, the silane coupler 0.03kg that takes by weighing nano titanium oxide 0.5kg and above-mentioned dilution mixes, and under 80 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 3 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 5, take by weighing silane coupler 0.25kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 5kg is immersed in the silane coupler of dilute with water, soaks after 120 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 80 ℃ of temperature, vacuum drying 6 hours; Described flaxen fiber cloth adopts ramee cloth;
(4) vinyon particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 5: 2.0, take by weighing vinyon particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.5kg, antioxidant BHT 0.2kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 140 ℃, obtains the modified poly ethylene plastic pellet;
(5) above-mentioned modified poly ethylene plastic pellet and interface bulking agent, flaxen fiber were pressed mass ratio 100: 20: 30, take by weighing modified poly ethylene plastic pellet 10kg, interface bulking agent maleic anhydride grafted polyethylene 2kg, flaxen fiber 3kg, put into container, mechanical mixture is even, rolls into fibrilia modified vinyon layer through calender then; Fibrilia modified vinyon layer thickness is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts ramee;
(6) place a fibrilia modified vinyon layer in the bottom of compression molding mold cavity, lay vinyon particle on fibrilia modified vinyon layer, put on vinyon particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay vinyon particle on the above-mentioned flaxen fiber cloth of handling with silane coupler, on the vinyon particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, lay vinyon particle on the flaxen fiber cloth of handling with silane coupler, on the vinyon particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, on the flaxen fiber cloth of handling with silane coupler, repave and put the vinyon particle, the fibrilia modified vinyon layer of lay one deck above the vinyon particle more at last, matched moulds, preheating is after 10 minutes under 145 ℃ of temperature, adopt the pressure compression molding of 20MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of vinyon particle and silane coupler is 100: 50, takes by weighing the flaxen fiber cloth 5kg that vinyon particle 10kg, silane coupler handled.
The mold pressing between two-layer fibrilia modified vinyon layer of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by vinyon particle and three layers of silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 40.6MPa, stretch modulus 3.9GPa, bending strength 75.5MPa, bending modulus 3.1GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 60%.
Embodiment 6: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 3, take by weighing silane coupler 3g, water 9g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed mass ratio 100: 4, the silane coupler 0.012kg that takes by weighing nano titanium oxide 0.3kg and above-mentioned dilution mixes, under 60 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 4.5 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 3, take by weighing silane coupler 0.09kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 3kg is immersed in the silane coupler of dilute with water, soaks after 80 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 60 ℃ of temperature, vacuum drying 4.5 hours; Described flaxen fiber cloth adopts ramee cloth;
(4) vinyon particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 3: 1.3, take by weighing vinyon particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.3kg, antioxidant 1010 (A) 0.13Kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 200 ℃, obtains the modified poly ethylene plastic pellet;
(5) above-mentioned modified poly ethylene plastic pellet and interface bulking agent, flaxen fiber were pressed mass ratio 100: 10: 20, take by weighing modified poly ethylene plastic pellet 10kg, interface bulking agent maleic anhydride grafted polyethylene 1kg, flaxen fiber 2kg, put into container, mechanical mixture is even, rolls into fibrilia modified vinyon layer through calender then; Fibrilia modified vinyon layer thickness is 0.5~2mm, and flaxen fiber length is that the described flaxen fiber of 0.5~10mm adopts ramee;
(6) place a fibrilia modified vinyon layer in the bottom of compression molding mold cavity, lay vinyon particle on fibrilia modified vinyon layer, put on vinyon particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay vinyon particle on the above-mentioned flaxen fiber cloth of handling with silane coupler, on the vinyon particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, lay vinyon particle on the flaxen fiber cloth of handling with silane coupler, the fibrilia modified vinyon layer of lay one deck above the vinyon particle more at last, matched moulds, preheating is after 8 minutes under 145 ℃ of temperature, adopt the pressure compression molding of 20MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of vinyon particle and silane coupler is 100: 30, takes by weighing the flaxen fiber cloth 3kg that vinyon particle 10kg, silane coupler handled.
The mold pressing between two-layer fibrilia modified vinyon layer of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by vinyon particle and two-layer silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 47.8MPa, stretch modulus 3.5GPa, bending strength 70.9MPa, bending modulus 2.3GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 68%.
Embodiment 7: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 1, take by weighing silane coupler 1g, water 1g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed mass ratio 100: 2, the silane coupler 0.002kg that takes by weighing nano titanium oxide 0.1kg and above-mentioned dilution mixes, under 40 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 6 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 1, take by weighing silane coupler 0.01kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 1kg is immersed in the silane coupler of dilute with water, soaks after 30 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 40 ℃ of temperature, vacuum drying 3 hours; Described flaxen fiber cloth adopts hemp cloth;
(4) polypropylene plastics particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 1: 0.5, take by weighing polypropylene plastics particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.1kg, antioxidant 1010 (A) 0.05kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 175 ℃, obtains the modified polypropylene plastic particle;
(5) above-mentioned modified polypropylene plastic particle and interface bulking agent, flaxen fiber were pressed mass ratio 100: 1: 10, take by weighing modified polypropylene plastic particle 10kg, interface bulking agent maleic anhydride inoculated polypropylene (MAPP) 0.1kg, flaxen fiber 1kg, put into container, mechanical mixture is even, rolls into the fibrilia modified polypropylene plastics bed of material through calender then; Fibrilia modified polypropylene plastics thickness of feed layer is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts hemp;
(6) place a fibrilia modified polypropylene plastics bed of material in the bottom of compression molding mold cavity, put the polypropylene plastics particle on fibrilia modified polypropylene plastics bed of material upper berth, put on polypropylene plastics particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay polypropylene plastics particle on the above-mentioned flaxen fiber cloth of handling with silane coupler again, the fibrilia modified polypropylene plastics bed of material of lay one deck above the polypropylene plastics particle more at last, matched moulds, preheating is after 5 minutes under 180 ℃ of temperature, adopt the pressure compression molding of 5MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of polypropylene plastics particle and silane coupler is 100: 10, takes by weighing the flaxen fiber cloth 1kg that polypropylene plastics particle 10kg, silane coupler handled.
The mold pressing between the two-layer fibrilia modified polypropylene plastics bed of material of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by polypropylene plastics particle and silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 41.5MPa, stretch modulus 2.7GPa, bending strength 64.6MPa, bending modulus 1.8GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 53%.
Embodiment 8: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 3, take by weighing silane coupler 3g, water 9g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed mass ratio 100: 4, the silane coupler 0.012kg that takes by weighing nano titanium oxide 0.3kg and above-mentioned dilution mixes, under 60 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 4.5 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 3, take by weighing silane coupler 0.09kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 3kg is immersed in the silane coupler of dilute with water, soaks after 80 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 60 ℃ of temperature, vacuum drying 4.5 hours; Described flaxen fiber cloth adopts hemp cloth;
(4) polypropylene plastics particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 3: 1.3, take by weighing polypropylene plastics particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.3kg, antioxidant 1010 (A) 0.13Kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 175 ℃, obtains the modified polypropylene plastic particle;
(5) above-mentioned modified polypropylene plastic particle and interface bulking agent, flaxen fiber were pressed mass ratio 100: 10: 20, take by weighing modified polypropylene plastic particle 10kg, interface bulking agent maleic anhydride inoculated polypropylene (MAPP) 1kg, flaxen fiber 2kg, put into container, mechanical mixture is even, rolls into the fibrilia modified polypropylene plastics bed of material through calender then; Fibrilia modified polypropylene plastics thickness of feed layer is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts hemp;
(6) place a fibrilia modified polypropylene plastics bed of material in the bottom of compression molding mold cavity, put the polypropylene plastics particle on fibrilia modified polypropylene plastics bed of material upper berth, put on polypropylene plastics particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay polypropylene plastics particle on the above-mentioned flaxen fiber cloth of handling with silane coupler, on the polypropylene plastics particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, lay polypropylene plastics particle on the flaxen fiber cloth of handling with silane coupler, the fibrilia modified polypropylene plastics bed of material of lay one deck above the polypropylene plastics particle more at last, matched moulds, preheating is after 8 minutes under 180 ℃ of temperature, adopt the pressure compression molding of 20MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of polypropylene plastics particle and silane coupler is 100: 30, takes by weighing the flaxen fiber cloth 3kg that polypropylene plastics particle 10kg, silane coupler handled.
The mold pressing between the two-layer fibrilia modified polypropylene plastics bed of material of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by polypropylene plastics particle and two-layer silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 45.6MPa, stretch modulus 3.8GPa, bending strength 86.4Pa, bending modulus 3.1GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 64%.
Embodiment 9: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 5, take by weighing silane coupler 5g, water 25g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed quality 100: 6, the silane coupler 0.03kg that takes by weighing nano titanium oxide 0.5kg and above-mentioned dilution mixes, and under 80 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 3 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 5, take by weighing silane coupler 0.25kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 5kg is immersed in the silane coupler of dilute with water, soaks after 120 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 80 ℃ of temperature, vacuum drying 6 hours; Described flaxen fiber cloth adopts sisal fiber cloth;
(4) igelite particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 5: 2.0, take by weighing igelite particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.5kg, antioxidant BHT 0.2kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 180 ℃, obtains the modified polyvinyl chloride plastic pellet;
(5) above-mentioned modified polyvinyl chloride plastic pellet and interface bulking agent, flaxen fiber were pressed mass ratio 100: 20: 30, take by weighing modified polyvinyl chloride plastic pellet 10kg, interface bulking agent maleic anhydride inoculated polypropylene (MAPP) 2kg, flaxen fiber 3kg, put into container, mechanical mixture is even, rolls into the fibrilia modified polyvinyl chloride plastic bed of material through calender then; Fibrilia modified polyvinyl chloride plastic thickness of feed layer is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts flax fiber, sisal fiber, tossa mixture;
(6) place a fibrilia modified polyvinyl chloride plastic bed of material in the bottom of compression molding mold cavity, put the polypropylene plastics particle on fibrilia modified polyvinyl chloride plastic bed of material upper berth, put on igelite particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay igelite particle on the above-mentioned flaxen fiber cloth of handling with silane coupler, on the igelite particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, lay igelite particle on the flaxen fiber cloth of handling with silane coupler, on the igelite particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, on the flaxen fiber cloth of handling with silane coupler, repave and put the igelite particle, the fibrilia modified polyvinyl chloride plastic bed of material of lay one deck above the igelite particle more at last, matched moulds, preheating is after 10 minutes under 185 ℃ of temperature, adopt the pressure compression molding of 20MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of igelite particle and silane coupler is 100: 50, takes by weighing the flaxen fiber cloth 5kg that igelite particle 10kg, silane coupler handled.
The mold pressing between the two-layer fibrilia modified polyvinyl chloride plastic bed of material of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by igelite particle and three layers of silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 33.8MPa, stretch modulus 3.2GPa, bending strength 76.8MPa, bending modulus 2.5GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 57%.
Embodiment 10: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 3, take by weighing silane coupler 3g, water 9g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed mass ratio 100: 4, the silane coupler 0.012kg that takes by weighing nano titanium oxide 0.3kg and above-mentioned dilution mixes, under 60 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 4.5 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 3, take by weighing silane coupler 0.09kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 3kg is immersed in the silane coupler of dilute with water, soaks after 80 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 60 ℃ of temperature, vacuum drying 4.5 hours; Described flaxen fiber cloth adopts sisal fiber cloth;
(4) igelite particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 3: 1.3, take by weighing igelite particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.3kg, antioxidant 1010 (A) 0.13kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 180 ℃, obtains the modified polyvinyl chloride plastic pellet;
(5) above-mentioned modified polyvinyl chloride plastic pellet and interface bulking agent, flaxen fiber were pressed mass ratio 100: 10: 20, take by weighing modified polyvinyl chloride plastic pellet 10kg, interface bulking agent maleic anhydride inoculated polypropylene (MAPP) 1kg, flaxen fiber 2kg, put into container, mechanical mixture is even, rolls into the fibrilia modified polyvinyl chloride plastic bed of material through calender then; Fibrilia modified polyvinyl chloride plastic thickness of feed layer is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts sisal fiber;
(6) place a fibrilia modified polyvinyl chloride plastic bed of material in the bottom of compression molding mold cavity, put the igelite particle on fibrilia modified polyvinyl chloride plastic bed of material upper berth, put on igelite particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay igelite particle on the above-mentioned flaxen fiber cloth of handling with silane coupler, on the igelite particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, lay igelite particle on the flaxen fiber cloth of handling with silane coupler, the fibrilia modified polyvinyl chloride plastic bed of material of lay one deck above the igelite particle more at last, matched moulds, preheating is after 8 minutes under 185 ℃ of temperature, adopt the pressure compression molding of 20MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of igelite particle and silane coupler is 100: 30, takes by weighing the flaxen fiber cloth 3kg that igelite particle 10kg, silane coupler handled.
The mold pressing between the two-layer fibrilia modified polyvinyl chloride plastic bed of material of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by igelite particle and two-layer silane coupler forms.
Composite board hot strength 42.4MPa, stretch modulus 2.8GPa, bending strength 75.4MPa, bending modulus 2.3GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 58%.
Embodiment 11: a kind of kenaf-plastics composite preparation of plates method, and its preparation process is:
(1) silane coupler and water were pressed mass ratio 1: 5, take by weighing silane coupler 5g, water 25g mixes, wherein water is solvent; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(2) silane coupler of nano titanium oxide and dilution was pressed quality 100: 6, the silane coupler 0.03kg that takes by weighing nano titanium oxide 0.5kg and above-mentioned dilution mixes, and under 80 ℃ of temperature, the modified nano-titanium dioxide particle is made in vacuum drying 3 hours; Described silane coupler adopts γ-(methacryloxypropyl) propyl trimethoxy silicane;
(3) press flaxen fiber cloth and silane coupler mass ratio 100: 5, take by weighing silane coupler 0.25kg, the dilute with water silane coupler, water consumption is as the criterion with submergence flaxen fiber cloth; Flaxen fiber cloth 5kg is immersed in the silane coupler of dilute with water, soaks after 120 minutes, take out flaxen fiber cloth, drain, put into vacuum drying oven, under 80 ℃ of temperature, vacuum drying 6 hours; Described flaxen fiber cloth adopts tossa cloth;
(4) vinyon particle and modified nano-titanium dioxide particle, antioxidant were pressed mass ratio 100: 5: 2.0, take by weighing vinyon particle plastic pellet 10kg, modified nano-titanium dioxide particle 0.5kg, antioxidant BHT 0.2kg, mechanical mixture is even, use the extruder extruding pelletization, the extruding pelletization temperature is 140 ℃, obtains the modified poly ethylene plastic pellet;
(5) above-mentioned modified poly ethylene plastic pellet and interface bulking agent, flaxen fiber were pressed mass ratio 100: 20: 30, take by weighing modified poly ethylene plastic pellet 10kg, interface bulking agent maleic anhydride grafted polyethylene 2kg, flaxen fiber 3kg, put into container, mechanical mixture is even, rolls into fibrilia modified vinyon layer through calender then; Fibrilia modified vinyon layer thickness is 0.5~2mm, and flaxen fiber length is 0.5~10mm; Described flaxen fiber adopts tossa, ramee, hemp mixture;
(6) place a fibrilia modified vinyon layer in the bottom of compression molding mold cavity, lay vinyon particle on fibrilia modified vinyon layer, put on vinyon particle upper berth and to state the flaxen fiber cloth of handling with silane coupler, lay vinyon particle on the above-mentioned flaxen fiber cloth of handling with silane coupler, on the vinyon particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, lay vinyon particle on the flaxen fiber cloth of handling with silane coupler, on the vinyon particle, repave to put and state the flaxen fiber cloth of handling with silane coupler, on the flaxen fiber cloth of handling with silane coupler, repave and put the vinyon particle, the fibrilia modified vinyon layer of lay one deck above the vinyon particle more at last, matched moulds, preheating is after 10 minutes under 145 ℃ of temperature, adopt the pressure compression molding of 20MPa, make kenaf-plastics composite sheet material; Wherein the flaxen fiber cloth mass ratio handled of vinyon particle and silane coupler is 100: 50, takes by weighing the flaxen fiber cloth 5kg that vinyon particle 10kg, silane coupler handled.
The mold pressing between two-layer fibrilia modified vinyon layer of this embodiment of the invention kenaf-plastics composite sheet material has flaxen fiber cloth reinforced plastic layer.The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was handled by vinyon particle and three layers of silane coupler forms.
Above-mentioned after testing kenaf-plastics composite sheet material hot strength 38.8MPa, stretch modulus 3.2GPa, bending strength 73.6MPa, bending modulus 2.7GPa, 90 ℃ were quickened thermo-oxidative ageing 600 hours, hot strength retention rate 63%.