CN1740234A - Making process of compound wood-plastic material product - Google Patents
Making process of compound wood-plastic material product Download PDFInfo
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- CN1740234A CN1740234A CNA2005100607941A CN200510060794A CN1740234A CN 1740234 A CN1740234 A CN 1740234A CN A2005100607941 A CNA2005100607941 A CN A2005100607941A CN 200510060794 A CN200510060794 A CN 200510060794A CN 1740234 A CN1740234 A CN 1740234A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
Abstract
The present invention discloses the making process of compound wood-plastic material product. Un-dried wood powder, plastic grain, compatibilizing agent, coupler, antioxidant, reinforcer, color powder and lubricant in certain proportion are fed to a pelletizing extruder for form granular material; and the granular material is extruded in a forming extruder and further processed through cooling to settle, drawing, cutting and decorating to produce the wood-plastic product. The present invention has the advantages of simple process, high production effect and rich material resource, and the product has timber-like texture, excellent performance and environment friendship.
Description
Technical field
The present invention relates to a kind of manufacture method of compound wood-plastic material product.
Background technology
China's Forest Resources is deficient relatively, but China is again timber consumption big country, and the woodwork consumption has occupied prostatitis, the world, data show, China had become big log in third place in the world and sawn timber country of consumption in 2002.Contradiction between timber resources owning amount and the rapid economic development becomes increasingly conspicuous, import volume and percentage of import cumulative year after year, and the huge breach of domestic lumber market is with long-term existence.
Compound wood-plastic material (hereinafter to be referred as Wood-plastic material) is a kind of type material that development in recent years is got up, with xylon or vegetable fibre fill, enhanced modified thermoplastic material, have the performance and the characteristics of timber and plastics concurrently, through extruding or compression moulding is section bar, sheet material or other goods, can substitute timber and plastics, and absolutely reclaiming is " green " mechanicals truly, also is a kind of ideal timber equivalent material.The new way that WPC utilizes for the Application Areas that enlarges timber, developing vegetable fibre, the import volume that reduces China's timber etc. are significant.
Wood-plastic material organically combines the advantage of two kinds of differing materials, both can be as timber surface gummed, paint, also can follow closely, bore, plane etc., again can be as the thermoplastics forming process, brought into play the workability of timber and processing of plastic method diversity, handiness.Wood-plastic material have the burn into of not being afraid of be not afraid of damage by worms, durablely do not absorb water, dimensional stability height, starting material wide material sources, advantage such as recyclable, at present in developed country, Wood-plastic material has obtained to use widely.Product comprises outdoor goods (as open-air tables and chairs), material of construction (as door-window section bar, platform etc.), urban operating mechanism (as flower case, rubbish container, Sewage well cover etc.), wrapping material, household supplies, daily use Sundry goods, auto parts machinery etc.
Publication number is the Chinese patent of CN1240804A, a kind of Wood-plastic material is provided, it is made up of waste polyethylene material, lignocellulose, industrial residue red soil etc., be composited through batching, kneading, High Temperature High Pressure, it not only can substitute wooden package and laying material, can also be used for products such as building template, floor, sash, pallet, tr.This invention is not owing to adopt forcing machine, but adopts machinery to mediate and the High Temperature High Pressure composite methods, can't make wood powder homodisperse in polyethylene, do not give full play to its enhancement.In addition, owing to adopt industrial residue to make raw material, its outward appearance is not good, greatly differs from each other with the texture of timber.
Publication number is the Chinese patent of CN1482165A, a kind of Wood-plastic foam material and processing and forming technology thereof are provided, be that wood powder is dried under 110-120 ℃ of temperature, add properties-correcting agent and make the wood powder activation, it is evenly mixed to add auxiliary agent, plastics and whipping agent, goes in the cold mixer to cool off at 120 ℃ of warm blowings of material, extrudes in forcing machine, through the foaming mould cooling and shaping, or drop into foaming in injector or the hot-die molding machine.
Publication number is the Chinese patent of CN1603088A, and a kind of Wood-plastic material production method is provided.At first wood working is become 100-200 purpose wood powder; again wood powder is dried; then wood powder is rendered in the mixing roll; adding an amount of activator activates; when temperature arrives 60-70 ℃ that PVC and the adding of various auxiliary agent is mixed, mixing once more in mixing roll then, shut down discharge when temperature arrives 120-130 ℃ and cool off; blended stock enters twin screw extruder and extrudes or put into granulation in the tablets press, carries out extrusion moulding again on single screw rod.
More than two patents all relate to the predrying and pre-treatment of wood powder, this can reduce production efficiency greatly, production cost is very high.And because Wood flour filled amount is not very high in the mixture, not good by the wood-plastic products outward appearance that its method is produced, can not allow the human consumer experience the natural quality of timber.
In addition, China is bamboo big country, and the tankage of bamboo processing also can be used as the important source of wood powder, and this point does not have patent to relate to as yet.
Summary of the invention
The manufacture method that the purpose of this invention is to provide a kind of compound wood-plastic material product.
It is with 100 parts of not dry wood powders, 30～100 parts of plastic pellets, 0.5～10 part of compatilizer, 0.5～5 part of coupling agent, 0.1～1 part in oxidation inhibitor, 5～40 parts of tougheners, 0.1～0.5 part of toner, 0.1～2 part of lubricant, add granulating extruder simultaneously, the pellet of making is extruded at the moulding forcing machine, wood plastic product is made in cooling and shaping, traction, cutting, modification.
The present invention has following advantage:
1. wood powder (or bamboo powder) need not independent drying, can directly add forcing machine and plastic pellet, the auxiliary agent blend is extruded, and has simplified work flow, has improved production efficiency;
2. except that utilizing timber tankage and agricultural stalk, also can utilize a large amount of bamboo processing waste material of China, raw material sources are abundant;
3. wood powder homodisperse in plastic substrate, Wood flour filled amount height, maximum level can reach 90%, and wood grain is clear, very near the texture of log;
4. adopt the advanced blending technology of extruding, make wood powder and plastic pellet evenly mixed, and the xylon particle form is not destroyed resulting product excellent performance, shock strength and tensile strength height substantially;
5. the gained wood plastic product can reclaim, and is the type material that a kind of environmental protection can be recycled.
Compound wood-plastic material product of the present invention can be used for fields such as Green Chemistry building materials, house decorative material, furniture, auto parts machinery.
Description of drawings
Accompanying drawing is the manufacturing process flow diagram of described wood plastic product.
Embodiment
The present invention fully takes into account the scarcity of timber resources, the tankage or the agricultural crop straw of timber, bamboo processing are processed into wood fiber powder or agronomic crop fibre powder (hereinafter to be referred as wood powder), mixed with plastic pellet and various auxiliary agent, by the granulating extruder granulation, form wood and mould the blend composite particles, be processed into various wood plastic products through the overmolding forcing machine at last, in order to substitute woodwork.The present invention so the wood powder drying-free can be extruded with plastic pellet, mixed the entering of auxiliary agent, has simplified the complicacy of production technique by adopting the forcing machine of special tectonic greatly, has improved production efficiency, has reduced production cost.The present invention adopts multiple auxiliary agent, comprise compatilizer, coupling agent, oxidation inhibitor, softening agent, toughener, tinting material, lubricant etc., can solve following problem: the compatibility problem between the wood powder of polar surfaces and the non-polar plastic particle, the mixed homogeneity question of compound wood-plastic material, the wood powder content increase causes tensile strength, the insufficient problem of shock strength, Wood flour filled amount problem, original Wood-plastic material lacks the problems such as texture of timber.
For a more detailed description to the present invention below in conjunction with specific embodiment, scope of the present invention is not subjected to the restriction of these embodiment, and modification and improvement that all are made on the basis of not departing from core content of the present invention all belong to the scope of protection of present invention.Scope of the present invention proposes in claims in detail.
Embodiment 1
It is as follows that wood is moulded the prescription of blend composite particles:
Wood powder (80 order): 100 parts
Polypropylene: 50 parts
Polypropylene-maleic anhydride graft copolymer: 3 parts
Coupling agent A-174:1 part
Antioxidant 1010: 0.6 part
Glass fibre: 8 parts
Toner: 0.2 part
Stearic acid: 1 part
Add granulating extruder simultaneously according to aforementioned proportion.Granulating extruder adopts incorgruous rotation non-engaging twin-screw forcing machine form of connecting with a single screw extrusion machine, twin screw extruder screw diameter 65mm wherein, L/D=42, rotating speed 300rpm, single screw extrusion machine screw diameter 65mm, L/D=28.Made pellet is extruder for shaping on single screw rod, and various wood plastic products are finally made in cooling and shaping, traction, cutting, modification.
Embodiment 2
It is as follows that wood is moulded the prescription of blend composite particles:
Bamboo powder (60 order): 100 parts
Polypropylene: 60 parts
Polypropylene-maleic anhydride graft copolymer: 3 parts
Dicumyl peroxide: 0.3 part
Antioxidant 1010: 1 part
Calcium carbonate superfine powder: 15 parts
Toner: 0.2 part
Zinic stearas: 0.5 part
The bamboo powder is to be pulverized by the tankage processing of common bamboo processing to form, and moisture content is 10%.Add granulating extruder simultaneously according to aforementioned proportion.Granulating extruder adopts incorgruous rotation non-engaging twin-screw forcing machine form of connecting with a single screw extrusion machine, twin screw extruder screw diameter 65mm wherein, L/D=42, rotating speed 300rpm, single screw extrusion machine screw diameter 65mm, L/D=28.Made pellet is in the single screw extrusion machine extrusion moulding, and various wood plastic products are finally made in cooling and shaping, traction, cutting, modification.
Embodiment 3
It is as follows that wood is moulded the prescription of blend composite particles:
Wood powder (80 order): 100 parts
HDPE:70 part
Ethylene-vinyl acetate copolymer: 3 parts
Stearic acid: 1 part
Titanate coupling agent: 2 parts
Talcum powder: 15 parts
Toner: 0.2 part
Polyoxyethylene wax: 0.5 part
Paraffin: 0.5 part
Add granulating extruder simultaneously according to aforementioned proportion.Granulating extruder adopts one and rotates the meshed double screw forcing machine in the same way, screw diameter 36mm, L/D=36, rotating speed 200rpm.The pellet of making is in the twin screw extruder extrusion moulding, and various wood plastic products are finally made in cooling and shaping, traction, cutting, modification.
Embodiment 4
It is as follows that wood is moulded the prescription of blend composite particles:
Wood powder (80 order): 100 parts
HDPE:70 part
Ethylene-acrylic acid copolymer: 3 parts
Stearic acid: 1 part
N, a N '-penylene bismaleimides: 0.5 part
Sheet mica: 10 parts
Toner: 0.2 part
Polyethylene wax: 1 part
Add granulating extruder simultaneously according to aforementioned proportion.Granulating extruder adopts incorgruous rotation non-engaging twin-screw forcing machine form of connecting with a single screw extrusion machine, twin screw extruder screw diameter 65mm wherein, L/D=42, rotating speed 300rpm, single screw extrusion machine screw diameter 65mm, L/D=28.Made pellet is in the single screw extrusion machine extrusion moulding, and various wood plastic products are finally made in cooling and shaping, traction, cutting, modification.
Embodiment 5
It is as follows that wood is moulded the prescription of blend composite particles:
Wood powder (80 order): 100 parts
PS:100 part
Polystyrene-maleic anhydride grafted multipolymer: 4 parts
Ethylene-acrylic acid copolymer: 1 part
Coupling agent A-174:1 part
Antioxidant 1010: 0.5 part
Toner: 0.3 part
Add granulating extruder simultaneously according to aforementioned proportion.Granulating extruder adopts incorgruous rotation non-engaging twin-screw forcing machine form of connecting with a single screw extrusion machine, twin screw extruder screw diameter 65mm wherein, L/D=42, rotating speed 300rpm, single screw extrusion machine screw diameter 65mm, L/D=28.Made pellet is in the single screw extrusion machine extrusion moulding, and various wood plastic products are finally made in cooling and shaping, traction, cutting, modification.
Embodiment 6
It is as follows that wood is moulded the prescription of blend composite particles:
Wood powder (80 order): 100 parts
PVC:70 part
Ethylene-acrylic acid copolymer: 1 part
Ethylene-vinyl acetate copolymer: 3 parts
Calcium carbonate superfine powder: 40 parts
Toner: 0.2 part
Dioctyl phthalate (DOP): 10 parts
Other auxiliary agents: 10 parts
Add granulating extruder simultaneously according to aforementioned proportion.Granulating extruder adopts incorgruous rotation non-engaging twin-screw forcing machine form of connecting with a single screw extrusion machine, twin screw extruder screw diameter 65mm wherein, L/D=42, rotating speed 300rpm, single screw extrusion machine screw diameter 65mm, L/D=28.Made pellet is in the single screw extrusion machine extrusion moulding, and various wood plastic products are finally made in cooling and shaping, traction, cutting, modification.
Embodiment 7
It is as follows that wood is moulded the prescription of blend composite particles:
Wood powder (80 order): 100 parts
PVC:70 part
Ethylene-acrylic acid copolymer: 1 part
Ethylene-vinyl acetate copolymer: 3 parts
Calcium carbonate superfine powder: 35 parts
Carbon fiber: 5 parts
Toner: 0.2 part
Dioctyl phthalate (DOP): 10 parts
Other auxiliary agents: 10 parts
Add granulating extruder simultaneously according to aforementioned proportion.Granulating extruder adopts one and rotates the meshed double screw forcing machine in the same way, screw diameter 36mm, L/D=36, rotating speed 200rpm.The pellet of making is in the single screw extrusion machine extrusion moulding, and various wood plastic products are finally made in cooling and shaping, traction, cutting, modification.
Embodiment 8
It is as follows that wood is moulded the prescription of blend composite particles:
Wood powder (80 order): 100 parts
Acrylonitrile-butadiene-styrene copolymer (ABS): 100 parts
Polystyrene-maleic anhydride grafted multipolymer: 4 parts
Ethylene-acrylic acid copolymer: 1 part
Carbon fiber: 10 parts
Calcium carbonate superfine powder: 10 parts
Antioxidant 1010: 0.8 part
Toner: 0.3 part
Dibutyl phthalate: 10 parts
Other auxiliary agents: 2 parts
Add granulating extruder simultaneously according to aforementioned proportion.Granulating extruder adopts one and rotates the meshed double screw forcing machine in the same way, screw diameter 36mm, L/D=36, rotating speed 200rpm.The pellet of making is in the single screw extrusion machine extrusion moulding, and various wood plastic products are finally made in cooling and shaping, traction, cutting, modification.
Embodiment 9
It is as follows that wood is moulded the prescription of blend composite particles:
Wood powder (80 order): 100 parts
Polyester PET: 100 parts
Stearic acid: 5 parts
Ethylene-vinyl acetate copolymer: 1 part
Talcum powder: 10 parts
Antioxidant 1010: 1.5 parts
Toner: 0.3 part
Dioctyl phthalate (DOP): 10 parts
Polyester wax: 1.8 parts
Add granulating extruder simultaneously according to aforementioned proportion.Granulating extruder adopts one and rotates the meshed double screw forcing machine in the same way, screw diameter 36mm, L/D=36, rotating speed 200rpm.The pellet of making is in the single screw extrusion machine extrusion moulding, and various wood plastic products are finally made in cooling and shaping, traction, cutting, modification.
Claims (10)
1. the manufacture method of a compound wood-plastic material product, it is characterized in that, with 100 parts of not dry wood powders, 30～100 parts of plastic pellets, 0.5～10 part of compatilizer, 0.5～5 part of coupling agent, 0.1～1 part in oxidation inhibitor, 5～40 parts of tougheners, 0.1～0.5 part of toner, 0.1～2 part of lubricant, add granulating extruder simultaneously, the pellet of making is extruded at the moulding forcing machine, wood plastic product is made in cooling and shaping, traction, cutting, modification.
2. the manufacture method of a kind of compound wood-plastic material product according to claim 1, it is characterized in that, described wood powder is that the tankage or the agricultural crop straw of timber, bamboo processing is crushed into wood fiber powder or agronomic crop fibre powder through the wood powder machine, wood powder is that particle diameter is 20 orders～500 orders, the wood powder moisture content is 1%～20%, and need not dry separately in advance.
3. the manufacture method of a kind of compound wood-plastic material product according to claim 1, it is characterized in that described plastic pellet is that plastic pellet is one or more the miscellany in polyethylene, polypropylene, polystyrene, polyvinyl chloride, Acrylonitrile-butadiene-styrene Copolymer or the polyester.
4. the manufacture method of a kind of compound wood-plastic material product according to claim 1, it is characterized in that described compatilizer is stearic acid, ethene-acrylic copolymer, ethene-vinyl acetate copolymer, polyethylene-maleic anhydride graft copolymer, polypropylene-maleic anhydride graft copolymer or polystyrene-maleic anhydride graft copolymer.
5. the manufacture method of a kind of compound wood-plastic material product according to claim 1 is characterized in that, described coupling agent adopts silane coupling agent, titanate coupling agent, N, N '-penylene bismaleimides or dicumyl peroxide.
6. the manufacture method of a kind of compound wood-plastic material product according to claim 1 is characterized in that, described oxidation inhibitor is phosphite, phosphonate or Hinered phenols.
7. the manufacture method of a kind of compound wood-plastic material product according to claim 1 is characterized in that, described softening agent is dioctyl phthalate (DOP) or dibutyl phthalate.
8. the manufacture method of a kind of compound wood-plastic material product according to claim 1 is characterized in that, described toughener is glass fibre, carbon fiber, lime carbonate, talcum powder or sheet mica.
9. the manufacture method of a kind of compound wood-plastic material product according to claim 1 is characterized in that, described lubricant is paraffin, polyethylene wax, polyester wax, oxidized polyethlene wax, stearic acid or Zinic stearas.
10. the manufacture method of a kind of compound wood-plastic material product according to claim 1 is characterized in that, described granulating extruder is single screw extrusion machine or twin screw extruder or their combination; The moulding forcing machine is single screw extrusion machine or twin screw extruder.
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| CNB2005100607941A CN100491471C (en) | 2005-09-16 | 2005-09-16 | Making process of compound wood-plastic material product |
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|---|---|---|---|
| CNB2005100607941A CN100491471C (en) | 2005-09-16 | 2005-09-16 | Making process of compound wood-plastic material product |
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| CN100491471C CN100491471C (en) | 2009-05-27 |
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