CN105348613A - Preparation method for modified flyash/polyolefin wood-plastic composite - Google Patents

Preparation method for modified flyash/polyolefin wood-plastic composite Download PDF

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CN105348613A
CN105348613A CN201510877228.3A CN201510877228A CN105348613A CN 105348613 A CN105348613 A CN 105348613A CN 201510877228 A CN201510877228 A CN 201510877228A CN 105348613 A CN105348613 A CN 105348613A
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plastic composite
flyash
parts
wood
coal ash
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梅庆波
宋国
王志慧
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/06—Polystyrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

Abstract

The invention discloses a preparation method for a modified flyash/polyolefin wood-plastic composite, and belongs to the field of composites. The preparation method comprises the following steps: soaking flyash with hydrochloric acid, adding hydrogen peroxide, heating, filtering, calcining filter residue to be molten, taking biogas liquid to be filtered, conducting centrifugal separation on a filtrate, adding the flyash and nutrient substances into a supernatant, conducting centrifugal separation to obtain a centrifugate, drying the centrifugate to obtain modified flyash, taking polyolefin resin, plant fiber powder, an antioxygen, the modified flyash, butyl stearate and potassium stearate, and conducting mixing, extrusion and granulation to obtain the modified flyash/polyolefin wood-plastic composite. The prepared wood-plastic composite has the mildew-proof and the corrosion-resistant performance, the added modified flyash has the function of reducing the water absorption rate of the wood-plastic composite, and the mechanical strength of the wood-plastic composite can be obviously improved.

Description

A kind of preparation method of modified coal ash/polyolefin wood-plastic composite
Technical field
The invention discloses a kind of preparation method of modified coal ash/polyolefin wood-plastic composite, belong to field of compound material.
Background technology
Wood plastic composite is for main raw material with plant fiber powder and plastics, add a small amount of coupling agent and other additive again, adopt high temperature to extrude a kind of outward appearance prepared by (or injection moulding, compacting etc.) method of forming and performance are similar to the advanced composite material of natural timber, and its product is mainly used as the substitute of natural timber.An extremely important application of wood plastic composite is widely used as outdoor building materials and outdoor decoration material, as outdoor flooring, fence, balcony, wayside pavilion, trestle, passage waterborne, open-air chair, express highway sound-proof wall, floor, seashore, flower case, garden landscape etc. as the substitute of timber.The water-intake rate of these wood plastic composites must be very low, if water-intake rate is higher, series of problems will be produced in environment out of doors: as resistance to fungal decay performance after absorbing water reduces, the wood powder in material easily mouldy, rot, freeze-thawing resistant bad stability, after water suction, physical strength significantly declines.
Some researchs are thought, because the vegetable fibre in wood plastic composite is by plastic overmold, the water-intake rate of wood plastic composite is quite low (as < 1%), therefore, early stage title wood plastic composite does not absorb water, not mouldy, without putrefaction, and result does not cause enough attention to the water-intake rate how reducing wood plastic composite.But, it is found that: have the significantly rear intensity of mouldy, rotten, water suction during general wood plastic composite uses out of doors and reduce, even absorb water strain cracking etc.This is because the wood plastic composite water-intake rate data of reporting measure under the time (as 24h) that absorbent time is shorter, now wood plastic composite water suction does not reach capacity.Research shows, the rate of water absorption of wood plastic composite is far below timber, and particularly its moisture absorbed speed of moving to material internal slowly, but its saturated water absorption is in fact not low, especially true when vegetable fibre powder content is higher.If be immersed in the water for a long time after wood plastic composite slice surfaces is polished, total water-intake rate of common wood-plastic composite can reach about 10%, result cause the surface of wood plastic composite easily mouldy, rot, freeze molten destruction, to making that intensity reduces, work-ing life shortens etc.Therefore, the water-intake rate reducing existing wood plastic composite is a very important technical problem, should cause enough attention.
Summary of the invention
The technical problem that the present invention mainly solves: have significantly mouldy in using out of doors for current wood plastic composite, rot, after water suction, intensity reduces, even absorb water the problem of strain cracking, provide a kind of preparation method of modified coal ash/polyolefin wood-plastic composite, the present invention's salt acid soak flyash adds hydrogen peroxide heating and filtering, filter residue calcining is become molten, get natural pond liquid to filter, after filtrate centrifugation, flyash and nutritive substance is added in supernatant liquor, centrifugation obtain centrifugal thing dry modified coal ash, get polyolefin resin, vegetable fibre powder, oxidation inhibitor, modified coal ash, butyl stearate and potassium stearate mix, extrude, granulation obtains modified coal ash/polyolefin wood-plastic composite, the wood plastic composite that the present invention prepares has mildew-resistant, antiseptic property, add modified coal ash, its effect reduces wood plastic composite water-intake rate, significantly improve the mechanical strength of wood plastic composite.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
(1) get 600 ~ 900g flyash and put into container, add the hydrochloric acid soln immersion flyash that massfraction is 30 ~ 35% wherein, add the hydrogen peroxide that 100 ~ 120mL massfraction is 30% more wherein, then 50 ~ 60 DEG C are heated to it, with the rotating speed of 120 ~ 150r/min, after stirring 20 ~ 40min, filtration under diminished pressure while hot, the filtrate of gained is put into crucible, crucible is moved in calcining furnace, temperature is set as 1200 ~ 1500 DEG C, keeps temperature until solid powder coal ash becomes molten;
(2) when solid powder coal ash becomes molten completely, after being cooled to 300 ~ 500 DEG C, crucible is taken out, use temperature is that the carbon dioxide of 5 ~ 10 DEG C is lowered the temperature to it, be cooled to room temperature, then the flyash after process in crucible is put into ultrafine crusher to pulverize, cross standard sieve, obtain 150 ~ 200 object flyash;
(3) get natural pond liquid to filter, the filtered liquid of gained is put into and centrifugally carries out centrifugation, rotating speed 8000 ~ 9000r/min, centrifugal 5 ~ 8min, get supernatant liquor, the flyash of above-mentioned gained is put into container, and the supernatant liquor after centrifugal with natural pond liquid floods flyash 2 ~ 4cm, then adds 50 ~ 60g nutritive substance wherein; Described nutritive substance is by quality hundred number, get the glucose of the agar of 20 ~ 65 parts, the methacryloxypropyl trimethoxy silane of 5 ~ 15 parts, the peptone of 15 ~ 20 parts and 20 ~ 45 parts, sealed vessel, temperature is set as 25 ~ 35 DEG C, with the rotating speed of 150 ~ 200r/min, stir 10 ~ 15h, then put it in supercentrifuge and carry out centrifugation, get centrifugal thing dry in 105 ° of C baking ovens, obtain modified coal ash;
(4) by quality hundred parts of ratios; getting polyolefin resin 40 ~ 55 parts, 30 ~ 35 parts, vegetable fibre powder, 2 ~ 5 parts, oxidation inhibitor, modified coal ash 10 ~ 18 parts, butyl stearate 1.2 ~ 2 parts and potassium stearate 0.8 ~ 1 part, to add premix in high-speed mixer even; then twin screw extruder is put in Preblend; temperature is set as 180 ~ 200 DEG C; extrude; obtain the material of modified coal ash/polyolefin wood-plastic composite; then the material of gained is put into plastic granulator and carry out granulation, obtain modified coal ash/polyolefin wood-plastic composite.
Described polyolefin resin be in polyethylene, polypropylene, polystyrene any one.
Described oxidation inhibitor is aryl phosphite, and the one in two (3,5-, tri-grades of butyl-4-hydroxy phenyls) thioether or two kinds mix with 1:3 ~ 1:5 ratio.
Described vegetable fibre powder be in agricultural crop straw, wood chip one or both with 1:5 ~ 1:7 ratio mixing, put into pulverizer and pulverize, cross standard sieve, obtain 100 ~ 200 order vegetable fibre powder.
Application method of the present invention: modified coal ash/polyolefin wood-plastic composite the present invention prepared can be applied on the outdoor building materials such as outdoor flooring, fence, balcony and outdoor decoration material as the substitute of timber, the density measuring material is>=0.92g/cm 3, limit oxygen index value (LOI) is 32 ~ 36, and the sample getting 5 ~ 7 10cm × 2cm × 2mm at room temperature soaks 24 hours, and it is≤2.6% that its water-intake rate of test is dried on its surface by taking-up filter paper.
The invention has the beneficial effects as follows:
(1) wood plastic composite that the present invention prepares has mildew-resistant, antiseptic property;
(2) add modified coal ash in the present invention, its effect reduces wood plastic composite water-intake rate, significantly improves the mechanical strength of wood plastic composite.
Embodiment
First get 600 ~ 900g flyash and put into container, add the hydrochloric acid soln immersion flyash that massfraction is 30 ~ 35% wherein, add the hydrogen peroxide that 100 ~ 120mL massfraction is 30% more wherein, then 50 ~ 60 DEG C are heated to it, with the rotating speed of 120 ~ 150r/min, after stirring 20 ~ 40min, filtration under diminished pressure while hot, the filtrate of gained is put into crucible, crucible is moved in calcining furnace, temperature is set as 1200 ~ 1500 DEG C, keeps temperature until solid powder coal ash becomes molten; When solid powder coal ash becomes molten completely, after being cooled to 300 ~ 500 DEG C, crucible is taken out, use temperature is that the carbon dioxide of 5 ~ 10 DEG C is lowered the temperature to it, be cooled to room temperature, then the flyash after process in crucible is put into ultrafine crusher to pulverize, cross standard sieve, obtain 150 ~ 200 object flyash; Get natural pond liquid to filter, the filtered liquid of gained is put into and centrifugally carries out centrifugation, rotating speed 8000 ~ 9000r/min, centrifugal 5 ~ 8min, get supernatant liquor, the flyash of above-mentioned gained is put into container, and the supernatant liquor after centrifugal with natural pond liquid floods flyash 2 ~ 4cm, then adds 50 ~ 60g nutritive substance wherein; Described nutritive substance is by quality hundred number, get the glucose of the agar of 20 ~ 65 parts, the methacryloxypropyl trimethoxy silane of 5 ~ 15 parts, the peptone of 15 ~ 20 parts and 20 ~ 45 parts, sealed vessel, temperature is set as 25 ~ 35 DEG C, with the rotating speed of 150 ~ 200r/min, stir 10 ~ 15h, then put it in supercentrifuge and carry out centrifugation, get centrifugal thing dry in 105 ° of C baking ovens, obtain modified coal ash; By quality hundred parts of ratios; getting polyolefin resin 40 ~ 55 parts, 30 ~ 35 parts, vegetable fibre powder, 2 ~ 5 parts, oxidation inhibitor, modified coal ash 10 ~ 18 parts, butyl stearate 1.2 ~ 2 parts and potassium stearate 0.8 ~ 1 part, to add premix in high-speed mixer even; then twin screw extruder is put in Preblend; temperature is set as 180 ~ 200 DEG C; extrude; obtain the material of modified coal ash/polyolefin wood-plastic composite; then the material of gained is put into plastic granulator and carry out granulation, obtain modified coal ash/polyolefin wood-plastic composite.
Described polyolefin resin be in polyethylene, polypropylene, polystyrene any one.
Described oxidation inhibitor is aryl phosphite, and the one in two (3,5-, tri-grades of butyl-4-hydroxy phenyls) thioether or two kinds mix with 1:3 ~ 1:5 ratio.
Described vegetable fibre powder be in agricultural crop straw, wood chip one or both with 1:5 ~ 1:7 ratio mixing, put into pulverizer and pulverize, cross standard sieve, obtain 100 ~ 200 order vegetable fibre powder.
Example 1
First get 600g flyash and put into container, add the hydrochloric acid soln immersion flyash that massfraction is 30% wherein, add the hydrogen peroxide that 100mL massfraction is 30% more wherein, then 50 DEG C are heated to it, with the rotating speed of 120r/min, after stirring 20min, filtration under diminished pressure while hot, puts into crucible by the filtrate of gained, is moved to by crucible in calcining furnace, temperature is set as 1200 DEG C, keeps temperature until solid powder coal ash becomes molten; When solid powder coal ash becomes molten completely, after being cooled to 300 DEG C, crucible is taken out, use temperature is that the carbon dioxide of 5 ~ 10 DEG C is lowered the temperature to it, be cooled to room temperature, then the flyash after process in crucible is put into ultrafine crusher to pulverize, cross standard sieve, obtain 150 object flyash; Get natural pond liquid to filter, the filtered liquid of gained is put into and centrifugally carries out centrifugation, rotating speed 8000r/min, centrifugal 5min, gets supernatant liquor, and the flyash of above-mentioned gained is put into container, supernatant liquor after centrifugal with natural pond liquid floods flyash 2cm, then adds 50g nutritive substance wherein; Described nutritive substance is by quality hundred number, get the glucose of the agar of 20 parts, the methacryloxypropyl trimethoxy silane of 15 parts, the peptone of 20 parts and 45 parts, sealed vessel, temperature is set as 25 DEG C, with the rotating speed of 150r/min, stir 10h, then put it in supercentrifuge and carry out centrifugation, get centrifugal thing dry, obtain modified coal ash; By quality hundred parts of ratios; getting polyolefin resin 42 parts, 35 parts, vegetable fibre powder, 5 parts, oxidation inhibitor, modified coal ash 15 parts, butyl stearate 2 parts and potassium stearate 1 part, to add premix in high-speed mixer even; then twin screw extruder is put in Preblend; temperature is set as 180 DEG C; extrude; obtain the material of modified coal ash/polyolefin wood-plastic composite, then the material of gained is put into plastic granulator and carry out granulation, obtain modified coal ash/polyolefin wood-plastic composite.
Described polyolefin resin be in polyethylene, polypropylene, polystyrene any one.
Described oxidation inhibitor is aryl phosphite, and the one in two (3,5-, tri-grades of butyl-4-hydroxy phenyls) thioether or two kinds mix with 1:3 ratio.
Described vegetable fibre powder be in agricultural crop straw, wood chip one or both with 1:5 ratio mixing, put into pulverizer and pulverize, cross standard sieve, obtain 100 ~ 200 order vegetable fibre powder.
Modified coal ash/polyolefin wood-plastic composite the present invention prepared can be applied on the outdoor building materials such as outdoor flooring, fence, balcony and outdoor decoration material as the substitute of timber, and the density measuring material is 0.92g/cm 3, limit oxygen index value (LOI) is 32, and the sample getting 5 10cm × 2cm × 2mm at room temperature soaks 24 hours, and it is 2.6% that its water-intake rate of test is dried on its surface by taking-up filter paper.
Example 2
First get 750g flyash and put into container, add the hydrochloric acid soln immersion flyash that massfraction is 33% wherein, add the hydrogen peroxide that 110mL massfraction is 30% more wherein, then 55 DEG C are heated to it, with the rotating speed of 135r/min, after stirring 30min, filtration under diminished pressure while hot, puts into crucible by the filtrate of gained, is moved to by crucible in calcining furnace, temperature is set as 1350 DEG C, keeps temperature until solid powder coal ash becomes molten; When solid powder coal ash becomes molten completely, after being cooled to 400 DEG C, crucible is taken out, use temperature is that the carbon dioxide of 8 DEG C is lowered the temperature to it, be cooled to room temperature, then the flyash after process in crucible is put into ultrafine crusher to pulverize, cross standard sieve, obtain 175 object flyash; Get natural pond liquid to filter, the filtered liquid of gained is put into and centrifugally carries out centrifugation, rotating speed 8500r/min, centrifugal 7min, gets supernatant liquor, and the flyash of above-mentioned gained is put into container, supernatant liquor after centrifugal with natural pond liquid floods flyash 3cm, then adds 55g nutritive substance wherein; Described nutritive substance is by quality hundred number, get the glucose of the agar of 45 parts, the methacryloxypropyl trimethoxy silane of 10 parts, the peptone of 15 parts and 30 parts, sealed vessel, temperature is set as 30 DEG C, with the rotating speed of 180r/min, stir 13h, then put it in supercentrifuge and carry out centrifugation, get centrifugal thing dry, obtain modified coal ash; By quality hundred parts of ratios; getting polyolefin resin 50 parts, 30 parts, vegetable fibre powder, 3 parts, oxidation inhibitor, modified coal ash 15 parts, butyl stearate 1.2 and potassium stearate 0.8 part, to add premix in high-speed mixer even; then twin screw extruder is put in Preblend; temperature is set as 190 DEG C; extrude; obtain the material of modified coal ash/polyolefin wood-plastic composite, then the material of gained is put into plastic granulator and carry out granulation, obtain modified coal ash/polyolefin wood-plastic composite.
Described polyolefin resin be in polyethylene, polypropylene, polystyrene any one.
Described oxidation inhibitor is aryl phosphite, and the one in two (3,5-, tri-grades of butyl-4-hydroxy phenyls) thioether or two kinds mix with 1:4 ratio.
Described vegetable fibre powder be in agricultural crop straw, wood chip one or both with 1:6 ratio mixing, put into pulverizer and pulverize, cross standard sieve, obtain 150 order vegetable fibre powder.
Modified coal ash/polyolefin wood-plastic composite the present invention prepared can be applied on the outdoor building materials such as outdoor flooring, fence, balcony and outdoor decoration material as the substitute of timber, and the density measuring material is 0.98g/cm 3, limit oxygen index value (LOI) is 34, and the sample getting 6 10cm × 2cm × 2mm at room temperature soaks 24 hours, and it is 2.2% that its water-intake rate of test is dried on its surface by taking-up filter paper.
Example 3
First get 900g flyash and put into container, add the hydrochloric acid soln immersion flyash that massfraction is 35% wherein, add the hydrogen peroxide that 120mL massfraction is 30% more wherein, then 60 DEG C are heated to it, with the rotating speed of 150r/min, after stirring 40min, filtration under diminished pressure while hot, puts into crucible by the filtrate of gained, is moved to by crucible in calcining furnace, temperature is set as 1500 DEG C, keeps temperature until solid powder coal ash becomes molten; When solid powder coal ash becomes molten completely, after being cooled to 500 DEG C, crucible is taken out, use temperature is that the carbon dioxide of 10 DEG C is lowered the temperature to it, be cooled to room temperature, then the flyash after process in crucible is put into ultrafine crusher to pulverize, cross standard sieve, obtain 200 object flyash; Get natural pond liquid to filter, the filtered liquid of gained is put into and centrifugally carries out centrifugation, rotating speed 9000r/min, centrifugal 8min, gets supernatant liquor, and the flyash of above-mentioned gained is put into container, supernatant liquor after centrifugal with natural pond liquid floods flyash 4cm, then adds 60g nutritive substance wherein; Described nutritive substance is by quality hundred number, get the glucose of the agar of 60 parts, the methacryloxypropyl trimethoxy silane of 5 parts, the peptone of 15 parts and 20 parts, sealed vessel, temperature is set as 35 DEG C, with the rotating speed of 200r/min, stir 15h, then put it in supercentrifuge and carry out centrifugation, get centrifugal thing dry, obtain modified coal ash; By quality hundred parts of ratios; getting polyolefin resin 45 parts, 32 parts, vegetable fibre powder, 2 parts, oxidation inhibitor, modified coal ash 18 parts, butyl stearate 2 and potassium stearate 1 part, to add premix in high-speed mixer even; then twin screw extruder is put in Preblend; temperature is set as 200 DEG C; extrude; obtain the material of modified coal ash/polyolefin wood-plastic composite, then the material of gained is put into plastic granulator and carry out granulation, obtain modified coal ash/polyolefin wood-plastic composite.
Described polyolefin resin be in polyethylene, polypropylene, polystyrene any one.
Described oxidation inhibitor is aryl phosphite, and the one in two (3,5-, tri-grades of butyl-4-hydroxy phenyls) thioether or two kinds mix with 1:5 ratio.
Described vegetable fibre powder be in agricultural crop straw, wood chip one or both with 1:7 ratio mixing, put into pulverizer and pulverize, cross standard sieve, obtain 200 order vegetable fibre powder.
Modified coal ash/polyolefin wood-plastic composite the present invention prepared can be applied on the outdoor building materials such as outdoor flooring, fence, balcony and outdoor decoration material as the substitute of timber, and the density measuring material is 0.95g/cm 3, limit oxygen index value (LOI) is 36, and the sample getting 7 10cm × 2cm × 2mm at room temperature soaks 24 hours, and it is 1.9% that its water-intake rate of test is dried on its surface by taking-up filter paper.

Claims (4)

1. a preparation method for modified coal ash/polyolefin wood-plastic composite, is characterized in that concrete preparation process is:
(1) get 600 ~ 900g flyash and put into container, add the hydrochloric acid soln immersion flyash that massfraction is 30 ~ 35% wherein, add the hydrogen peroxide that 100 ~ 120mL massfraction is 30% more wherein, then 50 ~ 60 DEG C are heated to it, with the rotating speed of 120 ~ 150r/min, after stirring 20 ~ 40min, filtration under diminished pressure while hot, the filtrate of gained is put into crucible, crucible is moved in calcining furnace, temperature is set as 1200 ~ 1500 DEG C, keeps temperature until solid powder coal ash becomes molten;
(2) when solid powder coal ash becomes molten completely, after being cooled to 300 ~ 500 DEG C, crucible is taken out, use temperature is that the carbon dioxide of 5 ~ 10 DEG C is lowered the temperature to it, be cooled to room temperature, then the flyash after process in crucible is put into ultrafine crusher to pulverize, cross standard sieve, obtain 150 ~ 200 object flyash;
(3) get natural pond liquid to filter, the filtered liquid of gained is put into and centrifugally carries out centrifugation, rotating speed 8000 ~ 9000r/min, centrifugal 5 ~ 8min, get supernatant liquor, the flyash of above-mentioned gained is put into container, and the supernatant liquor after centrifugal with natural pond liquid floods flyash 2 ~ 4cm, then adds 50 ~ 60g nutritive substance wherein; Described nutritive substance is by quality hundred number, get the glucose of the agar of 20 ~ 65 parts, the methacryloxypropyl trimethoxy silane of 5 ~ 15 parts, the peptone of 15 ~ 20 parts and 20 ~ 45 parts, sealed vessel, temperature is set as 25 ~ 35 DEG C, with the rotating speed of 150 ~ 200r/min, stir 10 ~ 15h, then put it in supercentrifuge and carry out centrifugation, get centrifugal thing dry in 105 ° of C baking ovens, obtain modified coal ash;
(4) by quality hundred parts of ratios; getting polyolefin resin 40 ~ 55 parts, 30 ~ 35 parts, vegetable fibre powder, 2 ~ 5 parts, oxidation inhibitor, modified coal ash 10 ~ 18 parts, butyl stearate 1.2 ~ 2 parts and potassium stearate 0.8 ~ 1 part, to add premix in high-speed mixer even; then twin screw extruder is put in Preblend; temperature is set as 180 ~ 200 DEG C; extrude; obtain the material of modified coal ash/polyolefin wood-plastic composite; then the material of gained is put into plastic granulator and carry out granulation, obtain modified coal ash/polyolefin wood-plastic composite.
2. the preparation method of a kind of modified coal ash/polyolefin wood-plastic composite according to claim 1, is characterized in that: in described step (4) polyolefin resin be in polyethylene, polypropylene, polystyrene any one.
3. the preparation method of a kind of modified coal ash/polyolefin wood-plastic composite according to claim 1, it is characterized in that: in described step (4), oxidation inhibitor is aryl phosphite, one in two (3,5-, tri-grades of butyl-4-hydroxy phenyls) thioether or two kinds mix with 1:3 ~ 1:5 ratio.
4. the preparation method of a kind of modified coal ash/polyolefin wood-plastic composite according to claim 1, it is characterized in that: vegetable fibre powder is that one or both in agricultural crop straw, wood chip mix with 1:5 ~ 1:7 ratio in described step (4), put into pulverizer to pulverize, cross standard sieve, obtain 100 ~ 200 order vegetable fibre powder.
CN201510877228.3A 2015-12-03 2015-12-03 Preparation method for modified flyash/polyolefin wood-plastic composite Pending CN105348613A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106750889A (en) * 2016-11-09 2017-05-31 中国神华能源股份有限公司 A kind of residue of aluminum-extracted pulverized fuel ash/PP composite material and preparation method thereof
CN109456610A (en) * 2018-09-26 2019-03-12 天长市正牧铝业科技有限公司 A kind of preparation method of high tenacity baseball bat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1994552A (en) * 2006-12-13 2007-07-11 大连理工大学 Modified fly ash absorbent and method for processing nitrophenol polymerization inhibitor production waste water
CN101585970A (en) * 2009-05-13 2009-11-25 杭州师范大学 Polyolefin wood-plastic composite with low rate of water absorption
CN103102572A (en) * 2013-02-05 2013-05-15 四川大学 Polyolefin wood-plastic composite material and preparation method thereof
CN105062109A (en) * 2015-07-17 2015-11-18 安徽万兴实业有限公司 Anti-bacterial and mould-proof wood-plastic composite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1994552A (en) * 2006-12-13 2007-07-11 大连理工大学 Modified fly ash absorbent and method for processing nitrophenol polymerization inhibitor production waste water
CN101585970A (en) * 2009-05-13 2009-11-25 杭州师范大学 Polyolefin wood-plastic composite with low rate of water absorption
CN103102572A (en) * 2013-02-05 2013-05-15 四川大学 Polyolefin wood-plastic composite material and preparation method thereof
CN105062109A (en) * 2015-07-17 2015-11-18 安徽万兴实业有限公司 Anti-bacterial and mould-proof wood-plastic composite

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106750889A (en) * 2016-11-09 2017-05-31 中国神华能源股份有限公司 A kind of residue of aluminum-extracted pulverized fuel ash/PP composite material and preparation method thereof
CN106750889B (en) * 2016-11-09 2019-05-03 中国神华能源股份有限公司 A kind of residue of aluminum-extracted pulverized fuel ash/PP composite material and preparation method thereof
CN109456610A (en) * 2018-09-26 2019-03-12 天长市正牧铝业科技有限公司 A kind of preparation method of high tenacity baseball bat

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Application publication date: 20160224