CN103804939B - Novel ecological wood and preparation method thereof - Google Patents
Novel ecological wood and preparation method thereof Download PDFInfo
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- CN103804939B CN103804939B CN201410051274.3A CN201410051274A CN103804939B CN 103804939 B CN103804939 B CN 103804939B CN 201410051274 A CN201410051274 A CN 201410051274A CN 103804939 B CN103804939 B CN 103804939B
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Abstract
Novel ecological wood of the present invention and preparation method thereof belongs to field of compound material, and the present invention uses waste and scrap to provide wood fibre and thermoplastic material to prepare novel ecological wood. The components by weight percent of this ecological wooden is: wood powder 28-37 part, bran powder 20-30 part, the paper products chip 20-30 part containing polyethylene (PE), calcium powder 5-15 part, pigment 1-4 part, compound additive 4-6 part. Above-mentioned dispensing by blank stock, high mixed, granulate, the operating procedure of extrusion, Surface Machining and parameter prepare novel ecological wood. The present invention adopts the paper products chip added containing PE, has fully recycled wood fibre and thermoplastic material, it is achieved that the recycling and reuse of ecological resources, has greatly reduced cost.
Description
Technical field
The invention belongs to field of compound material, relate to a kind of ecological wooden, particularly relate to the novel ecological wood using waste and scrap to provide wood fibre and thermoplastic material, the invention still further relates to a kind of method preparing novel ecological wood simultaneously.
Background technology
Composite is the material with very big vitality that development of modern scientific technology emerges, and it is composited by various process meanses by the material of two or more different in kind. Each combined material of composite plays synergism in nature, obtains the superior combination property that homogenous material is incomparable. Ecological wooden is also known as moulding wood, and Wood plastic composite is that containing the wood fiber or other plant fiber-like material is filled and a kind of composite of enhancing modified thermoplastic in employing, and main component is plastics and wood powder. The material wherein containing wood fiber class includes waste wood powder, bamboo powder, sawdust, wood shavings and waste wood etc., and other plant fiber includes agricultural crop straw, rice husk, Pericarppium arachidis hypogaeae and various hemp stalks etc. Thermoplastic generally adopts polyethylene (PE), polypropylene (PP), polrvinyl chloride (PVC) and polystyrene (PS) etc.
Publication number is that CN101531791A name is called that a kind of composite ecological wood, publication number are that CN101864130B name is called that PVC plastic wood material, publication number are that CN103265776A name is called that the Chinese invention patent of a kind of ecological wooden and preparation method thereof all mainly have employed wood powder and PVC as raw material. The melt temperature of PVC and decomposition temperature are closer to, and exacerbate again internal friction, produce a large amount of interior-heat in ecological wooden preparation process after adding additive when mixing, therefore, and the more difficult control of processing temperature. And PVC also to add plasticizer and just can overcome the fragility of itself, and the plasticizer of liquid is very easily absorbed by wood fibre, and when PVC uses simultaneously, the effect of light is very easily degraded aging. Additionally the processing temperature of PP and PVC is high, if long processing time, wood powder very easily burns. And performance all comparative superiorities of the ageing-resistant degraded of PE and processing aspect. But adopt the finished product PE adding buying relatively costly, and the production process of PE consumes the energy and easily causes environment dirt.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides a kind of novel ecological wood and preparation method thereof.The present invention adopts the paper products chip added containing " PE ", and especially kraft paper bag chip provides thermoplastic and Activities of Some Plants fiber simultaneously.
For achieving the above object, novel ecological wood of the present invention and preparation method thereof, it is provided that a kind of novel ecological wood, this ecological wooden is made up of following components by weight percent:
Wood powder 28-37 part, bran powder 20-30 part, the paper products chip 20-30 part containing polyethylene (PE), calcium powder 5-15 part, pigment 1-4 part, compound additive 4-6 part.
As the restriction to technique scheme, novel ecological wood is made up of following components by weight percent: wood powder 32 parts, 25 parts of bran powder, the paper products chip 26 parts containing polyethylene (PE), calcium powder 10 parts, pigment 2 parts, compound additive 5 parts.
As the further restriction to technique scheme, the described paper products chip containing polyethylene (PE) is waste and old kraft paper bag chip.
As the further restriction to technique scheme, described compound additive is coupling agent and lubricant.
Specifically, described coupling agent is the one in silane coupler, titanate coupling agent, aluminic acid acid coupling agent.
Specifically, described lubricant is the one in stearic acid, paraffin.
In the present invention, the parts by weight of wood powder control 28-37 part. Increase along with wood powder content, all there is rising trend in the hot strength of material, bending strength, but while improving material stiffness, also declining occurs in the toughness making material, showing as the decline of impact strength increasing with wood powder content, impact strength declines further, but trend is shallower, therefore to control wood powder content in OK range. The size controlling of wood powder is at 70-100 order, and along with wood powder particle size reduction, bending strength reduces notable, and impact strength first raises to some extent and then reduces. This is because large-sized wood powder can play certain fiber reinforcement effect, and undersized wood powder adds the two-phase interface area of composite, is conducive to the absorption of the energy impacted. Particle size reduces further, and interface compatibility becomes subject matter so that impact property reduces.
The present invention adds bran powder, it is possible to improve the hot strength of Wood flour filled PE base wood-plastic composite material, impact strength and use temperature, improve resistance to water and the processing fluidity of composite. Bran powder and wood powder and with ratio for bran powder 20-30 part: during wood powder 28-37 part, the overall performance of composite is best, and hot strength, impact strength and vicat softening point temperature respectively reach maximum.
Wood powder, bran powder are as filler, and the general inorganic filler of density ratio is little, wear-resisting can degrade and reclaim, and raw material resources are enriched, and production technology is simple, and low price, gained composite product has good woodiness touch and effect of heat insulation.
The ageing-resistant degraded of PE and the performance of processing aspect are more superior compared with other thermoplastics. The present invention adopts the paper products chip added containing PE, the mesh grid containing PE of the paper products liner is make use of to be used as thermoplastic, consume not degradable plastic components contained therein, not only replace buying finished product PVC, PE, and the paper products chip containing PE itself can provide Plant fiber thus replacing part wood powder, that reduces wood powder makes consumption. Therefore by the present invention in that with the paper products chip containing PE, fully recycled wood fibre and thermoplastic material, it is achieved that the recycling and reuse of ecological resources, not only that environmental conservation is significant, and greatly reduce cost.
In the present invention, wood powder, bran powder, paper products chip containing PE both provide Plant fiber and namely mould the filler of wood as ecological wooden, and the ratio of the parts by weight of three kinds of components affects the various aspects of performance of final ecological wooden.
The present invention is added by Artificial Control kind and weight, the controllable colour of pigment, is prevented effectively from aberration.
Owing to wood powder is polarity, hydrophilic filler, and PE is nonpolar, oleophylic, therefore their compatibility is bad, and causes composite material strength to lower, stress decrease, so the coupling agent interface binding power to improve between Plant fiber and thermoplastic must be added. The present invention makes inorganic matter and Organic substance combine by adding the one in silane coupler, titanate coupling agent, aluminic acid acid coupling agent.
For improving fluidity of molten, the present invention also added the one in stearic acid, paraffin as lubricant.
The preparation method that simultaneously present invention also offers a kind of novel ecological wood, the method comprises the following steps:
(1) get the raw materials ready;
(2) high mixed, the wood powder that will get ready, bran powder, containing the paper products chip of polyethylene (PE), calcium powder mixes, and makes temperature T1Reach 118 DEG C-122 DEG C, add coupling agent, lubricant and pigment and continue mixing, and make temperature T2Reach 118 DEG C-122 DEG C, maintain this temperature 10-20min;
(3) granulate, at temperature T3For under 160-180 DEG C of environment, it is after 1-2mm granule that the material that step (2) obtains is made particle diameter, be cooled to less than 50 DEG C stand-by;
(4) extrusion, heating particles step (3) obtained is to temperature T4, 155 DEG C to 175 DEG C, make granular solids become plastic rheid, be cooled to 60 DEG C and be carried out below forming extrusion.
As the restriction to technique scheme, the high mixed middle temperature T of described step (2)1It is 120 DEG C, temperature T2It it is 120 DEG C; Temperature T in step (3) granulation3It it is 170 DEG C; Temperature T in step (4) extrusion4It it is 165 DEG C; Extruded velocity in step (4) is 117Kg/h.
As the restriction to technique scheme, pressing wood powder 28-37 part, bran powder 20-30 part, the paper products chip 20-30 part containing polyethylene (PE) in step (1), calcium powder 5-15 part, pigment 1-4 part, compound additive 4-6 part is got the raw materials ready.
As the further restriction to technique scheme, pressing wood powder 32 parts, 25 parts of bran powder, the paper products chip 26 parts containing polyethylene (PE), calcium powder 10 parts in step (1), pigment 2 parts, compound additive 5 parts is got the raw materials ready.
Above-mentioned preparation process adopts commercially available wood plant equipment of moulding to realize, as JG-MSX65/132 moulds wood plant equipment.
In technique scheme, step (2) height is sneaked out and strictly to be controlled mixture temperature and mixing time in journey, and the raw material being equipped with is sufficiently mixed at high speed mixer, and material frictional heat is to temperature T1Being 118 DEG C-122 DEG C makes various material be sufficiently mixed, and after adding coupling agent, lubricant and required pigment, material can lower the temperature 3 DEG C-5 DEG C, continues friction mixture to temperature T2Being 118 DEG C-122 DEG C, shutting down opens a position is discarded to pelletize line by material. Operation material on the one hand is fully dried at such a temperature, coupling agent, lubricant can be made to act on material better on the other hand. Mixing time is unsuitable long, otherwise plastics will be melted, make material caking even embrace pot the consequence causing batch mixing failed, and mixing time is also unsuitable too short, otherwise cause material can not fully dry or the unequal phenomenon of batch mixing, therefore it is 10-20min that the present invention controls mixing time.
Extrusion temperature T4Controlling 160-180 DEG C, extruded velocity controls at 117Kg/h. Plasticization temperature is too high, overlong time, the easy variable color of wood powder, and composite is sallow;And plasticization temperature is too low, the time is shorter, and PE fails to plastify completely, and wood powder dispersion is uneven, causes that composite property is decreased obviously. According to graininess in extrusion operation, accomplish adjusting process parameter in time, to reach optimum efficiency.
Detailed description of the invention
Embodiment one:
(1) getting the raw materials ready, get the raw materials ready according to composition weight number each in formula, wherein the particle diameter of wood powder is 70 orders;
(2) dispensing, is transported to each feed bin with fork truck by production needed raw material and carries out proportioning by electronic scale automatic Weighing, wood powder: bran powder: waste and old kraft paper bag chip: calcium powder: pigment: compound additive=32:25:26:10:2:5;
(3) high mixed, the raw material being equipped with is delivered to airtight high speed mixer through screw feeding machine and is sufficiently mixed, and material frictional heat makes temperature T1Making various material be sufficiently mixed to 118 DEG C, after adding coupling agent, lubricant and pigment, material is lowered the temperature 5 DEG C, continues friction mixture and makes temperature T2Arriving 122 DEG C, maintain this temperature 10min, shutting down opens a position is discarded to pelletize line by material;
(4) granulating, mixed material is promoted to granulating system through screw feeding machine and granulates, and makes temperature T by main frame ring mould, electric hot plate heating in granulator3Being 170 DEG C, forming particle diameter under the extruding of pressure roller is the granule of 2mm, and granule is cooled to less than 50 DEG C through force 3 wind and is easy to pack close to room temperature, is delivered in storage bin;
(5) extrusion, the product that obtains of granulating is undertaken plastifying by artificial pack transport to extruding production line storage bin hopper, molding: 1. plastic phase, by Electric heating, the heating of screw rod barrel is made temperature T4It is 160 DEG C, makes granular solids become plastic rheid. 2. formative stage, owing to screw rod rotates and wind-force effect, pushes head to rheid, and material entrance bosh is cooled to less than the 60 DEG C shaping platforms entered in head and carries out forming extrusion with the extruded velocity of 117Kg/h, obtains required size shape material;
(6) Surface Machining, carries out the good semi-finished product of PROCESS FOR TREATMENT such as plucking, sanding, embossing as required by material;
(7) inspection, on inspection, measure after qualified product packaging warehouse-in, plucking, the solid leftover pieces of sanding and verify underproof Product recycling, size-reduced machine pulverizing process produces again.
The properties of product prepared through above-mentioned technique are as follows: wood fiber content 63%, hot strength 12.4Mpa, three-point bending strength 15.7Mpa, hardness >=60D, impact strength 12KJ/.
Embodiment two:
(1) getting the raw materials ready, get the raw materials ready according to composition weight number each in formula, wherein the particle diameter of wood powder is 100 orders;
(2) dispensing, is transported to each feed bin with fork truck by production needed raw material and carries out proportioning by electronic scale automatic Weighing, wood powder: bran powder: waste and old kraft paper bag chip: calcium powder: pigment: compound additive=37:28:24:5:2:4;
(3) high mixed, the raw material being equipped with is delivered to airtight high speed mixer through screw feeding machine and is sufficiently mixed, and material frictional heat makes temperature T1Making various material be sufficiently mixed to 120 DEG C, after adding coupling agent, lubricant and pigment, material is lowered the temperature 3 DEG C, continues friction mixture and makes temperature T2Arriving 120 DEG C, maintain this temperature 15min, shutting down opens a position is discarded to pelletize line by material;
(4) granulating, mixed material is promoted to granulating system through screw feeding machine and granulates, and makes temperature T by main frame ring mould, electric hot plate heating in granulator3Being 170 DEG C, forming particle diameter under the extruding of pressure roller is the granule of 2mm, and granule is cooled to less than 50 DEG C through force 3 wind and is easy to pack close to room temperature, is delivered in storage bin;
(5) extrusion, the product that obtains of granulating is undertaken plastifying by artificial pack transport to extruding production line storage bin hopper, molding: 1. plastic phase, by Electric heating, the heating of screw rod barrel is made temperature T4It is 165 DEG C, makes granular solids become plastic rheid. 2. formative stage, owing to screw rod rotates and wind-force effect, pushes head to rheid, and material entrance bosh is cooled to less than the 60 DEG C shaping platforms entered in head and carries out forming extrusion with the extruded velocity of 117Kg/h, obtains required size shape material;
(6) Surface Machining, carries out the good semi-finished product of PROCESS FOR TREATMENT such as plucking, sanding, embossing as required by material;
(7) inspection, on inspection, measure after qualified product packaging warehouse-in, plucking, the solid leftover pieces of sanding and verify underproof Product recycling, size-reduced machine pulverizing process produces again.
The properties of product prepared through above-mentioned technique are as follows: wood fiber content 72%, hot strength 13.1Mpa, three-point bending strength 20.9Mpa, hardness >=60D, impact strength 9KJ/.
Claims (10)
1. an ecological wooden, it is characterised in that be made up of following components by weight percent:
Wood powder 28-37 part, bran powder 20-30 part, the paper products chip 20-30 part containing polyethylene (PE), calcium powder 5-15 part, pigment 1-4 part, compound additive 4-6 part.
2. ecological wooden as claimed in claim 1, it is characterised in that be made up of following components by weight percent: wood powder 32 parts, 25 parts of bran powder, the paper products chip 26 parts containing polyethylene (PE), calcium powder 10 parts, pigment 2 parts, compound additive 5 parts.
3. ecological wooden as claimed in claim 1 or 2, it is characterised in that: the described paper products chip containing polyethylene (PE) is waste and old kraft paper bag chip.
4. ecological wooden as claimed in claim 1 or 2, it is characterised in that: described compound additive is coupling agent and lubricant.
5. ecological wooden as claimed in claim 4, it is characterised in that: described coupling agent is the one in silane coupler, titanate coupling agent.
6. ecological wooden as claimed in claim 4, it is characterised in that: described lubricant is the one in stearic acid, paraffin.
7. the preparation method of an ecological wooden, it is characterised in that comprise the following steps:
(1) get the raw materials ready;
(2) high mixed, the wood powder that will get ready, bran powder, containing the paper products chip of polyethylene (PE), calcium powder mixes, and makes temperature T1 reach 118 DEG C-122 DEG C, add coupling agent, lubricant and pigment and continue mixing, and make temperature T2 reach 118 DEG C-122 DEG C, maintain this temperature 10-20min;
(3) granulate, be under 160-180 DEG C of environment at temperature T3, it is after 1-2mm granule that the material that step (2) obtains is made particle diameter, be cooled to less than 50 DEG C stand-by;
(4) extrusion, heating particles step (3) obtained, to temperature T4,155 DEG C to 175 DEG C, makes granular solids become plastic rheid, is cooled to 60 DEG C and is carried out below forming extrusion.
8. the preparation method of ecological wooden as claimed in claim 7, it is characterised in that the high mixed middle temperature T1 of described step (2) is 120 DEG C, and temperature T2 is 120 DEG C; During step (3) is granulated, temperature T3 is 170 DEG C; In step (4) extrusion, temperature T4 is 165 DEG C; Extruded velocity in step (4) is 117Kg/h.
9. the preparation method of ecological wooden as claimed in claim 7 or 8, it is characterised in that: step (1) is pressed wood powder 28-37 part, bran powder 20-30 part, paper products chip 20-30 part containing polyethylene (PE), calcium powder 5-15 part, pigment 1-4 part, compound additive 4-6 part is got the raw materials ready.
10. the preparation method of ecological wooden as claimed in claim 9, it is characterised in that: pressing wood powder 32 parts, 25 parts of bran powder, the paper products chip 26 parts containing polyethylene (PE), calcium powder 10 parts in step (1), pigment 2 parts, compound additive 5 parts is got the raw materials ready.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410051274.3A CN103804939B (en) | 2014-02-14 | 2014-02-14 | Novel ecological wood and preparation method thereof |
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| CN201410051274.3A CN103804939B (en) | 2014-02-14 | 2014-02-14 | Novel ecological wood and preparation method thereof |
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| CN103804939B true CN103804939B (en) | 2016-06-15 |
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| CN111941582A (en) * | 2020-08-19 | 2020-11-17 | 香河天亚木业有限公司 | Shaving board and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880376A (en) * | 2006-05-17 | 2006-12-20 | 安徽国风集团有限公司 | Bran powder type thermoplastic wood plastic composite material and its preparing process |
| CN1928223A (en) * | 1999-06-22 | 2007-03-14 | 希乐克公司 | Texturized cellulosic and lignocellulosic materials and compositions and composites made therefrom |
| CN102260386A (en) * | 2011-06-01 | 2011-11-30 | 浙江金磊窗业有限公司 | Ecological composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001021367A1 (en) * | 1999-09-22 | 2001-03-29 | Sd-Konsult Stein Fr. Dietrichson | Construction material comprising recycled pvb (polyvinyl butyral) |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928223A (en) * | 1999-06-22 | 2007-03-14 | 希乐克公司 | Texturized cellulosic and lignocellulosic materials and compositions and composites made therefrom |
| CN1880376A (en) * | 2006-05-17 | 2006-12-20 | 安徽国风集团有限公司 | Bran powder type thermoplastic wood plastic composite material and its preparing process |
| CN102260386A (en) * | 2011-06-01 | 2011-11-30 | 浙江金磊窗业有限公司 | Ecological composite material and preparation method thereof |
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Address after: 063300 south side of No.16 Road, Fengnan coastal industrial zone, Tangshan City, Hebei Province Patentee after: Tangshan Weisen New Material Technology Co.,Ltd. Address before: 063300 South of Building 16, Coastal Industrial Zone, Fengnan District, Tangshan, Hebei Patentee before: TANGSHAN WEISEN NEW MATERIAL Co.,Ltd. |