CN101654536A - Method for producing nano plastic-wood composite section - Google Patents
Method for producing nano plastic-wood composite section Download PDFInfo
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- CN101654536A CN101654536A CN200810147123A CN200810147123A CN101654536A CN 101654536 A CN101654536 A CN 101654536A CN 200810147123 A CN200810147123 A CN 200810147123A CN 200810147123 A CN200810147123 A CN 200810147123A CN 101654536 A CN101654536 A CN 101654536A
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Abstract
The invention relates to a method for producing a nano plastic-wood composite section. Wood meal, chlorcosane, polyvinyl chloride, epoxidized soybean oil, dioctyl phthalate, dibutyl phthalate, stearicacid, PE wax, a plumbic acid ester coupling agent, active light calcium carbonate, calcium stearate, zinc stearate, dibasic lead phosphate, lead sulfate tribasic, EBS, chlorinated polyethylene, ACR-401, an AC foaming agent and a 530 foaming regulator serving as raw materials are prepared into a section special material through a high temperature mixer, a cold mixing processor, an injection molding machine and a moulding mould. The section prepared by the method is a composite material processed and prepared through mixing and extruding equipment after macromolecular modification. The materialhas the advantage that: the material has the appearance of natural wood, is similar to the wood but superior to the wood, has environmental protection due to no release of formaldehyde, no rot, no deformation, pest resistance, good fire resistance, no crack and no need of maintenance, and can be sawed, adhered, nailed, planed and the like.
Description
Technical field
The present invention relates to a kind of method for producing nano plastic-wood composite section, the present invention adopts wood fibre and thermoplastics, through the mixing environmental protection section bar of being processed into.
Background technology
China's forest coverage is low, because overexploitation brings vegetation desertification and sandstorm day by day.Existing forest harvesting utilization ratio and timber are made a low multiple use.Thus, Wood plastic composite has appearred, it with reclaim in plastics, agronomic crop fibre, the wood working " three surplus things are raw material; not only meet the performance requriements of Wood plastic composite; can be recycled simultaneously; improved plastics the rate of recovery, reduce the potential hazard of plastics to environment, help comprehensive utilization of resources and economize on resources.To protecting forest resources and ecotope, significant.Chinese patent 200710029105.X discloses the preparation method of a kind of anesthesia stem and plastics composite; this method is earlier coupling anesthesia stem powder and modified mineral powder to be mixed; obtain compound anesthesia stem powder; obtain compound anesthesia stem powder toward wood powder tablets press extruding pelletization again, and then with plastics mixing granulation or extruded product.This invention utilizes anesthesia stem to produce wood plastic composite and has filled up xylon industry raw material vacancy, has alleviated the scarcity of wood raw material, has also found new approach for the comprehensive utilization of natural fiber crops.But also there is following problem: mould wood and melt extrude big, poor, the energy consumption height of expressing technique of system viscosity, be difficult to form slick surface, and its mechanical property, heat-resisting, weathering resistance etc. are still held raising.For this reason, need to propose a kind of new method for producing nano plastic-wood composite section.
Summary of the invention
The object of the present invention is to provide a kind of method for producing nano plastic-wood composite section, the present invention is by mechanical force and chemical action, ultra-fine laminate structure mineral powder is coated wood powder, obtain the wood powder of compoundization, extrude with the plastics melt blending then, by the lubrication of mineral powder, reduce to extrude resistance, improve the rheological that melt extrudes mixture.Utilize the two-dimentional enhancement function of mineral lamella simultaneously, work in coordination with the mechanics and the thermotolerance that improve Wood plastic composite, utilize the function of mineral powder absorption UV-light, improve the ageing resistance of Wood plastic composite.
The objective of the invention is to realize by following technical proposals: a kind of method for producing nano plastic-wood composite section, use the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 25-50, clorafin 0.3-0.8,
Polyvinyl chloride 35-60, epoxy soybean oil 0.2-0.6,
O-2 potassium acid dioctyl ester 1.2-2.6, o-2 potassium acid dibutylester 0.4-1.2,
Stearic acid 1-2.5, PE wax 0.2-0.8,
Plumbic acid fat coupling agent 0.3-1.2, calcene 4-15,
Calcium stearate 0.1-0.6, Zinic stearas 0.1-0.6,
Dibasic lead phosphite 0.8-2.5, lead sulfate tribasic 1.5-3,
EBS 0.2-0.8, chlorinatedpolyethylene 3-5,
ACR-401 0.6-1.6, AC whipping agent 0.3-1,
530 foaming control agent 3.5-6;
A, take by weighing wood powder, plumbic acid fat coupling agent, calcene according to described weight proportion;
B, described wood powder is dropped in the high temperature mixing machine, heat to 100 ℃-110 ℃, stop heating, add described plumbic acid fat coupling agent, described calcene, start the high temperature mixing machine and carry out stir process, form mixture, described calcene is the nano level pulvis;
C, when described mixture temperature rises to 125 ℃-130 ℃, stop stir process; Then described mixture is transferred to and slowly stirs cooling in the cold mixed handler, drop to 30 ℃-40 ℃, generate the coupling wood powder;
D, take by weighing powder attitude polyvinyl chloride, and it is put in the high temperature mixing machine, heat to 85 ℃, stop heating according to weight proportion;
E, following raw material is put in the described high temperature mixing machine by weight ratio in order then, feed intake while stirring, described raw material is: dibasic lead phosphite, epoxy soybean oil, chlorinatedpolyethylene, Zinic stearas, calcium stearate, clorafin, PE wax, o-2 potassium acid dioctyl ester, o-2 potassium acid dibutylester, stearic acid, lead sulfate tribasic, EBS, ACR-401;
Compound in F, the described high temperature mixing machine of detection adds described coupling wood powder when reaching 100 ℃;
G, take by weighing AC whipping agent, 530 foaming control agents by weight proportion, join and continue in the described high temperature mixing machine to stir;
H, when the temperature of reaction in the described high temperature mixing machine reaches 115 ℃-120 ℃, stop stir process, use tablets press to make the section bar PP Pipe Compound;
I, described section bar PP Pipe Compound is used injection moulding machine and mould extrusion moulding.
Another object of the present invention is realized by following technical proposals: a kind of method for producing nano plastic-wood composite section, use the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 40-80, PE wax 0.8-2,
High-pressure polyethylene 30-60, maleic anhydride 1.5-5,
Low pressure polyethylene 25-55, paraffin 0.2-0.85,
Aluminate coupling agent 0.3-0.85, stearic acid 1.5-3;
A, take by weighing wood powder, high-pressure polyethylene, low pressure polyethylene, paraffin, stearic acid according to described weight proportion;
B, described wood powder is dropped in the high temperature mixing machine, heat to 120 ℃, stop heating, add described high-pressure polyethylene, low pressure polyethylene, paraffin, stearic acid, start the high temperature mixing machine and carry out stir process, form mixture, described low pressure polyethylene, paraffin, stearic acid are respectively taken component half, and respectively reserve component half;
C, when described mixture temperature rises to 140 ℃, stop stir process; Then described mixture is transferred to and slowly stirs cooling in the cold mixed handler, drop to 30 ℃-40 ℃, generate the coupling wood powder;
D, low pressure polyethylene, paraffin, the stearic acid reserved are put in the high temperature mixing machine, heated to 85 ℃, stop heating;
E, by weight ratio following raw material is put in the described high temperature mixing machine in order then, fed intake while stirring, described raw material is: aluminate coupling agent, PE wax, maleic anhydride;
Compound in F, the described high temperature mixing machine of detection adds described coupling wood powder when reaching 100 ℃;
G, when the temperature of reaction in the described high temperature mixing machine reaches 100 ℃, stop stir process, use tablets press to make the section bar PP Pipe Compound;
H, described section bar PP Pipe Compound is used injection moulding machine and mould extrusion moulding.
Compared with the prior art the present invention has following advantage:
1, the present invention compares with existing Wood plastic composite and has that moulding processability is good, energy consumption is low; Melting index improves 20%-50% in the time of 190 ℃, improve 40%-70% in the time of 200 ℃.
2, surface flatness height of the present invention, woodiness touch are strong, the mechanical property height; Impact resistance improves 20%-50%.
3, the present invention can be widely used in building and ornament materials (man-made tourist site, railing, floor, square, bench), building template, railroad tie, industrial pallet etc., has remarkable economical effect and social effect.
Embodiment
Embodiment one:
Method for producing nano plastic-wood composite section, use the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 25-50, clorafin 0.3-0.8,
Polyvinyl chloride 35-60, epoxy soybean oil 0.2-0.6,
O-2 potassium acid dioctyl ester 1.2-2.6, o-2 potassium acid dibutylester 0.4-1.2,
Stearic acid 1-2.5, PE wax 0.2-0.8,
Plumbic acid fat coupling agent 0.3-1.2, calcene 4-15,
Calcium stearate 0.1-0.6, Zinic stearas 0.1-0.6,
Dibasic lead phosphite 0.8-2.5, lead sulfate tribasic 1.5-3,
EBS 0.2-0.8, chlorinatedpolyethylene 3-5,
ACR-401 0.6-1.6, AC whipping agent 0.3-1,
530 foaming control agent 3.5-6;
The code name of the polyvinyl chloride in the present embodiment is PVC, the code name of o-2 potassium acid dioctyl ester is DOP, stearic code name is 1801, EBS is N, the hard esteramides of N '-ethylenebis, ACR-401 is a methylmethacrylate copolymer, the code name of chlorinatedpolyethylene is CPE, the AC whipping agent is a Cellmic C 121, and calcene is nano level fine powder.The weight unit of present embodiment adopts kilogram.The proportioning raw materials of present embodiment can be determined flexibly in above-mentioned span.
A, take by weighing wood powder, plumbic acid fat coupling agent, calcene according to described weight proportion;
B, described wood powder is dropped in the high temperature mixing machine, heat to 100 ℃-110 ℃, stop heating, add described plumbic acid fat coupling agent, described calcene, start the high temperature mixing machine and carry out stir process, form mixture, described calcene is the nano level pulvis;
C, when described mixture temperature rises to 125 ℃-130 ℃, stop stir process; Then described mixture is transferred to and slowly stirs cooling in the cold mixed handler, drop to 30 ℃-40 ℃, generate the coupling wood powder;
D, take by weighing powder attitude polyvinyl chloride, and it put in the high temperature mixing machine according to weight proportion, heat to 85 ℃ or≤85 ℃, stop heating;
E, following raw material is put in the described high temperature mixing machine by weight ratio in order then, feed intake while stirring, described raw material is: dibasic lead phosphite, epoxy soybean oil, chlorinatedpolyethylene, Zinic stearas, calcium stearate, clorafin, PE wax, o-2 potassium acid dioctyl ester, o-2 potassium acid dibutylester, stearic acid, lead sulfate tribasic, EBS, ACR-401;
Compound in F, the described high temperature mixing machine of detection adds described coupling wood powder when reaching 100 ℃;
G, take by weighing AC whipping agent, 530 foaming control agents by weight proportion, join and continue in the described high temperature mixing machine to stir;
H, when the temperature of reaction in the described high temperature mixing machine reaches 115 ℃-120 ℃, stop stir process, use tablets press to make the section bar PP Pipe Compound; Optimal reaction temperature is 120 ℃.
I, described section bar PP Pipe Compound is used injection moulding machine and mould extrusion moulding.
Employed equipment in the present embodiment: high temperature mixing machine, cold mixed handler, injection moulding machine and forming mould all are conventional equipment, do not describe at this.
The present invention adds a certain proportion of wood fibre filler (wood powder) and various processing aid of containing in PVC plastic grain raw material, after the mixing of high temperature mixing machine, the house decorative material goods that utilize specific equipment and mould to can be made into different shape, have natural timber material feature, little foaming technology is extruded in employing, have light specific gravity, cost is low, efficient is high, weak point consuming time and can realize automatic continuous production, length is advantage such as ruling arbitrarily; Can produce the goods of different grades, different size, different colours according to different material and color.Wood powder can be combined with polyvinyl chloride resin is good, reach the best combination interface.Raw material and the production process used do not need glue bonding, are that a kind of zero formaldehyde discharges, absolutely the brand-new environmental protection composite material for decoration that can recycle
The section bar of the present invention preparation is through macromolecule modified, the matrix material of being processed into compounding, extrusion equipment.This material has appearance of natural wood, is better than wood like wood, the formaldehydeless release of environmental protection, without putrefaction, indeformable, refuse insect pest, fire resistance is good, do not chap, Maintenance free, but can saw, can glue, can follow closely, can dig advantage such as japanning.Not only have both the characteristic that natural timber and plastics are arranged, and can provide multiple color and specification selective as requested.Can be widely used in that upholstery, building materials, outdoor scene, industrial packaging, automobile steamer interior trim, chemical industry, ocean are anticorrosion, field such as household electrical appliance and daily living article, as; Industrial pallet, the warehouse backing plate, body bottom, the warehouse shelf, wooden railing, beach chair, floor etc., substituted for plastic, timber and steel have unique and purposes widely.
Wood powder used in the present invention is woody fiber and draft fiber, wherein, and woody fiber such as sawdust, wood shavings, wood chip, bamboo bits and coconut husk etc.; Draft fiber such as wheat straw, cotton straw, hemp stalk, chaff, soybean hulls, Pericarppium arachidis hypogaeae, cotton stalk, Sunflower Stalk, bagasse etc. are depleted low value natural resources, after screening, pulverizing, grinding and handle, promptly become the wood material of moulding wood.
Embodiment two:
Present embodiment is the improvement on embodiment one basis, and improving content is proportioning raw materials, and preparation process and embodiment one are basic identical, uses the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 40, clorafin 0.55,
Polyvinyl chloride 47, epoxy soybean oil 0.6,
O-2 potassium acid dioctyl ester 1.9, o-2 potassium acid dibutylester 0.8,
Stearic acid 1.75, PE wax 0.5,
Plumbic acid fat coupling agent 0.9, calcene 9.5,
Calcium stearate 0.35, Zinic stearas 0.35,
Dibasic lead phosphite 1.65, lead sulfate tribasic 2.25,
EBS 0.5, chlorinatedpolyethylene 4,
ACR-401 1.1, AC whipping agent 0.65,
530 foaming control agents 4.75.
Embodiment three:
This enforcement is the improvement on the basis of embodiment one, and the improved content raw material type that has been conversion uses the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 40-80, PE wax 0.8-2,
High-pressure polyethylene 30-60, maleic anhydride 1.5-5,
Low pressure polyethylene 25-55, paraffin 0.2-0.85,
Aluminate coupling agent 0.3-0.85, stearic acid 1.5-3;
The weight unit of present embodiment adopts kilogram.The proportioning raw materials of present embodiment can be determined flexibly in above-mentioned span.
A, take by weighing wood powder, high-pressure polyethylene, low pressure polyethylene, paraffin, stearic acid according to described weight proportion;
B, described wood powder is dropped in the high temperature mixing machine, heat to 120 ℃, stop heating, add described high-pressure polyethylene, low pressure polyethylene, paraffin, stearic acid, start the high temperature mixing machine and carry out stir process, form mixture, described low pressure polyethylene, paraffin, stearic acid are respectively taken component half, and respectively reserve component half;
C, when described mixture temperature rises to 140 ℃, stop stir process; Then described mixture is transferred to and slowly stirs cooling in the cold mixed handler, drop to 30 ℃-40 ℃, generate the coupling wood powder;
D, low pressure polyethylene, paraffin, the stearic acid reserved are put in the high temperature mixing machine, heated to 85 ℃, stop heating;
E, by weight ratio following raw material is put in the described high temperature mixing machine in order then, fed intake while stirring, described raw material is: aluminate coupling agent, PE wax, maleic anhydride;
Compound in F, the described high temperature mixing machine of detection adds described coupling wood powder when reaching 100 ℃;
G, when the temperature of reaction in the described high temperature mixing machine reaches 100 ℃, stop stir process, use tablets press to make the section bar PP Pipe Compound;
H, described section bar PP Pipe Compound is used injection moulding machine and mould extrusion moulding.
Embodiment four:
Present embodiment is the improvement on the basis of embodiment three, and improving content is proportion of raw materials, uses the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 60, PE wax 1.4,
High-pressure polyethylene 45, maleic anhydride 3.2,
Low pressure polyethylene 40, paraffin 0.52,
Aluminate coupling agent 0.57, stearic acid 2.2.
Claims (4)
1, a kind of method for producing nano plastic-wood composite section is characterized in that: use the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 25-50, clorafin 0.3-0.8,
Polyvinyl chloride 35-60, epoxy soybean oil 0.2-0.6,
O-2 potassium acid dioctyl ester 1.2-2.6, o-2 potassium acid dibutylester 0.4-1.2,
Stearic acid 1-2.5, PE wax 0.2-0.8,
Plumbic acid fat coupling agent 0.3-1.2, calcene 4-15,
Calcium stearate 0.1-0.6, Zinic stearas 0.1-0.6,
Dibasic lead phosphite 0.8-2.5, lead sulfate tribasic 1.5-3,
EBS 0.2-0.8, chlorinatedpolyethylene 3-5,
ACR-401 0.6-1.6, AC whipping agent 0.3-1,
530 foaming control agent 3.5-6;
A, take by weighing wood powder, plumbic acid fat coupling agent, calcene according to described weight proportion;
B, described wood powder is dropped in the high temperature mixing machine, heat to 100 ℃-110 ℃, stop heating, add described plumbic acid fat coupling agent, described calcene, start the high temperature mixing machine and carry out stir process, form mixture, described calcene is the nano level pulvis;
C, when described mixture temperature rises to 125 ℃-130 ℃, stop stir process; Then described mixture is transferred to and slowly stirs cooling in the cold mixed handler, drop to 30 ℃-40 ℃, generate the coupling wood powder;
D, take by weighing powder attitude polyvinyl chloride, and it is put in the high temperature mixing machine, heat to 85 ℃, stop heating according to weight proportion;
E, following raw material is put in the described high temperature mixing machine by weight ratio in order then, feed intake while stirring, described raw material is: dibasic lead phosphite, epoxy soybean oil, chlorinatedpolyethylene, Zinic stearas, calcium stearate, clorafin, PE wax, o-2 potassium acid dioctyl ester, o-2 potassium acid dibutylester, stearic acid, lead sulfate tribasic, EBS, ACR-401;
Compound in F, the described high temperature mixing machine of detection adds described coupling wood powder when reaching 100 ℃;
G, take by weighing AC whipping agent, 530 foaming control agents by weight proportion, join and continue in the described high temperature mixing machine to stir;
H, when the temperature of reaction in the described high temperature mixing machine reaches 115 ℃-120 ℃, stop stir process, use tablets press to make the section bar PP Pipe Compound;
I, described section bar PP Pipe Compound is used injection moulding machine and mould extrusion moulding.
2, method for producing nano plastic-wood composite section according to claim 1 is characterized in that: use the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 40, clorafin 0.55,
Polyvinyl chloride 47, epoxy soybean oil 0.6,
O-2 potassium acid dioctyl ester 1.9, o-2 potassium acid dibutylester 0.8,
Stearic acid 1.75, PE wax 0.5,
Plumbic acid fat coupling agent 0.9, calcene 9.5,
Calcium stearate 0.35, Zinic stearas 0.35,
Dibasic lead phosphite 1.65, lead sulfate tribasic 2.25,
EBS 0.5, chlorinatedpolyethylene 4,
ACR-401 1.1, AC whipping agent 0.65,
530 foaming control agents 4.75.
3, a kind of method for producing nano plastic-wood composite section is characterized in that: use the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 40-80, PE wax 0.8-2,
High-pressure polyethylene 30-60, maleic anhydride 1.5-5,
Low pressure polyethylene 25-55, paraffin 0.2-0.85,
Aluminate coupling agent 0.3-0.85, stearic acid 1.5-3;
A, take by weighing wood powder, high-pressure polyethylene, low pressure polyethylene, paraffin, stearic acid according to described weight proportion;
B, described wood powder is dropped in the high temperature mixing machine, heat to 120 ℃, stop heating, add described high-pressure polyethylene, low pressure polyethylene, paraffin, stearic acid, start the high temperature mixing machine and carry out stir process, form mixture, described low pressure polyethylene, paraffin, stearic acid are respectively taken component half, and respectively reserve component half;
C, when described mixture temperature rises to 140 ℃, stop stir process; Then described mixture is transferred to and slowly stirs cooling in the cold mixed handler, drop to 30 ℃-40 ℃, generate the coupling wood powder;
D, low pressure polyethylene, paraffin, the stearic acid reserved are put in the high temperature mixing machine, heated to 85 ℃, stop heating;
E, by weight ratio following raw material is put in the described high temperature mixing machine in order then, fed intake while stirring, described raw material is: aluminate coupling agent, PE wax, maleic anhydride;
Compound in F, the described high temperature mixing machine of detection adds described coupling wood powder when reaching 100 ℃;
G, when the temperature of reaction in the described high temperature mixing machine reaches 100 ℃, stop stir process, use tablets press to make the section bar PP Pipe Compound;
H, described section bar PP Pipe Compound is used injection moulding machine and mould extrusion moulding.
4, plastic-wood composite section production method according to claim 3 is characterized in that: use the following weight proportion raw material to prepare the section bar PP Pipe Compound:
Wood powder 60, PE wax 1.4,
High-pressure polyethylene 45, maleic anhydride 3.2,
Low pressure polyethylene 40, paraffin 0.52,
Aluminate coupling agent 0.57, stearic acid 2.2.
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| CN102304290A (en) * | 2011-07-26 | 2012-01-04 | 北京林业大学 | Wood plastic composite and preparation method thereof |
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| CN102153826B (en) * | 2011-02-18 | 2012-09-26 | 李兵 | Composites and methods for producing plastic-steel square timber and straw foamed plastic square timber |
| CN102140213A (en) * | 2011-05-10 | 2011-08-03 | 江苏明天材料科技有限公司 | Wood plastic composite dalle and preparation method thereof |
| CN102304290A (en) * | 2011-07-26 | 2012-01-04 | 北京林业大学 | Wood plastic composite and preparation method thereof |
| CN102329514A (en) * | 2011-08-15 | 2012-01-25 | 江苏福瑞森塑木科技有限公司 | High-strength plastic wood dalle and preparation method thereof |
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