CN104927386A - Wood plastic material production process - Google Patents
Wood plastic material production process Download PDFInfo
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- CN104927386A CN104927386A CN201510361947.XA CN201510361947A CN104927386A CN 104927386 A CN104927386 A CN 104927386A CN 201510361947 A CN201510361947 A CN 201510361947A CN 104927386 A CN104927386 A CN 104927386A
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Abstract
The invention discloses a wood plastic material production process. The process includes steps of a, materials preparation, namely preparing thermoplastic, filler, wood powder, treatment aid, coupling agent, stearic acid and other aids; b, material hot mixing, namely feeding all the materials into a hot mixing machine and mixing evenly; c, die extrusion, namely feeding into a dual-screw extruder for extrusion and granulation; d, forming, namely thermoforming through a thermoforming die, and forming in the vacuum; e, traction, namely performing traction after cooling. According to the process, thermoplastic, the wood powder and the filler are mixed, the coupling agent and compatilizer are adopted in a matched manner, the compatibility of plastic components is high, and the plastic is compatible with the wood powder; the plastic powder and the wood powder adopt tailings and waste, energy is saved, environment pollution is reduced, the environment protection performance is fine, production cost is lowered, and absorption of pollutants of the environment is benefited through the added filler.
Description
[technical field]
The present invention relates to the technical field of Wood-plastic material, particularly a kind of technical field of production technique of Wood-plastic material.
[background technology]
Wood-plastic material is with wooden powders such as thermoplastics and wood powder, plant straw powder, plant species shell such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) for raw material, through the matrix material made by extruding, injection moulding, compression moulding.Wood plastic composite has the texture of timber beauty, combine advantage and the performance of timber and thermoplastics, there is the processibility of thermoplastics, easily shaping, just can carry out forming process with general device of plastic processing or after transforming a little, there is the secondary workability of similar wood simultaneously, can cut, bonding, be connected and fixed with nail or bolt, paintable, product specification shape can require adjustment according to user, and handiness is large.The production of wood plastic composite and use, can not distribute the volatile matter of harm humans health by environment towards periphery, material itself goes back recoverable, is a kind of brand-new Green Product, is also a kind of ecological clean matrix material.Owing to having both the dual nature of timber and plastics, Wood-plastic material is compared with wood materials: water-intake rate is low, not easily strain cracking, Anti-moth-eating goes mouldy, have that mechanical property is high, light weight, protection against the tide, acid and alkali-resistance, corrosion-resistant, be convenient to cleaning, can substitute the uses such as log, plastics and aluminium alloy in a lot of field, be the following energy-conserving and environment-protective product innovation of new generation substituting traditional timber, oneself is through being widely used in the fields such as automotive industry, construction industry, transport trade, packing business, air system.
Current Wood-plastic material cost while raising physicals also can increase substantially, and constrains more widely using of Wood-plastic material, needs actively to find performance better, the Wood-plastic material that cost is lower.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, proposes a kind of production technique of Wood-plastic material, prepares the Wood-plastic material of steady quality, environmental protection, and ageing-resistant performance is good, Absorbable rod pollutent.
For achieving the above object, the present invention proposes a kind of production technique of Wood-plastic material, comprise material preparation, material heat mixes, mould is extruded, shapes and drawn, concrete steps are as follows:
(a)
Material prepares: prepare material and comprise thermoplastics, weighting agent, wood powder, processing aid, coupling agent, stearic acid, other auxiliarys;
(b)
Material heat mixing: the wood materials of recovery is pulverized and obtains wood powder, wood powder is gathered and dries, add coupling agent and carry out surface modification, obtain modified wood powder for subsequent use, all material drops into Hot mixer device, high speed rotating according to the ratio of parts by weight, mix, open drain hole, discharge, to cold mixer, treats that temperature of charge drops to 40 DEG C ~ 60 DEG C mixture operations and completes;
(c)
Mould is extruded: sent in twin screw extruder by the batch mixing mixed, material fully merges under the effect of screw rod, through getting to know extruding pelletization;
D () is shaped: it is hot-forming that hot pressing die put into by the pellet after extruding pelletization, then through Vacuum shaping;
(e) draw: the material after shape is cooled, after draw, acquisition Wood-plastic material.
As preferably, in described step (a), the parts by weight of each component are: thermoplastics 52 ~ 68 parts, weighting agent 23 ~ 38 parts, wood powder 18 ~ 30 parts, processing aid 8 ~ 10 parts, coupling agent 2 ~ 5 parts, stearic acid 0.5 ~ 1 part, other auxiliarys 12 ~ 15 parts.
As preferably, in described step (a), thermoplastics be polypropylene, polyvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene copolymer wherein a kind of, thermoplastics selects discarded recycled plastic.
As preferably, in described step (a), weighting agent comprises calcium carbonate and diatom ooze powder, and the ratio of calcium carbonate and diatom ooze powder is 4.2 ~ 4.5:0.8 ~ 1.2; Processing aid comprises processing aid CP-1, processing aid 278 and processing aid h-8, and the ratio of processing aid CP-1, processing aid 278 and processing aid h-8 is 2.5 ~ 3.5:5 ~ 7:0.6 ~ 1.0; Other auxiliarys comprise compatilizer, chlorinatedpolyethylene CPE, without lead stabilizer and lubricant PE wax, the ratio of each component is 2.5 ~ 3.5:5 ~ 7:3.2 ~ 4.0:0.4 ~ 0.6.
As preferably, in described step (b), the wood materials of recovery comprises wherein one or more the mixing of stalk, rice chaff, wooden scrap stock, sawdust, and wood powder needs to be crushed to 60 ~ 100 orders, the drying time of wood powder is 8 ~ 10 hours, and bake out temperature is 95 DEG C ~ 110 DEG C; Hot mixer device treats that mixing of materials temperature reaches 110 DEG C ~ 130 DEG C and transfers low-speed running to by running up, and mixing time is 6 ~ 10 minutes.
As preferably, in described step (c), twin screw extruder rotating speed is 26rpm, and extruding pelletization temperature is 240 DEG C ~ 250 DEG C, die head district.
As preferably, in described step (d), molding temperature is 160 DEG C ~ 180 DEG C, and hot pressing time is 10 ~ 15 minutes, and die pressure is 10 ~ 25MPa.
As preferably, in described step (e), cooling conditions is water cycle, and cooling time is 5 ~ 15 minutes.
By compatilizer and coupling agent with the use of, make the plastic components of many body system have good consistency each other, and combination compatible with wood powder simultaneously.Play the material of filling effect, the material proportion of calcium carbonate is comparatively light, and diatom ooze powder is beneficial to the absorption to pollutent in environment.Processing aid CP-1 promotes fluidity of molten, reduces plasticization temperature; Processing aid 278 strengthens the rigidity of product, increases melt viscosity; Lubrication in processing aid h-8 promotes.Chlorinatedpolyethylene CPE improves the toughness of product; Facilitate without lead stabilizer stability, resin-oatmeal is not decomposed; Lubricant PE wax promotes surface lubrication and mobility.
Beneficial effect of the present invention:
The present invention adopts thermoplastics to mix with wood powder, weighting agent, by compatilizer and coupling agent with the use of, make the plastic components of many body system have good consistency each other, and combination compatible with wood powder simultaneously; Synthetic resin moulding compound, wood powder all select tailing waste material, save energy, reduce environmental pollution, good environmental protection, and production cost reduces; The weighting agent added is beneficial to absorption to pollutent in environment, prepares steady quality, Wood-plastic material handsome in appearance, good stability of the dimension, ageing-resistant performance are good, Absorbable rod pollutent, and material is light.
Feature of the present invention and advantage will be described in detail by embodiment.
[embodiment]
The production technique of a kind of Wood-plastic material of the present invention, comprise material preparation, material heat mixes, mould is extruded, shapes and drawn, concrete steps are as follows:
(a)
Material prepares: prepare material and comprise thermoplastics, weighting agent, wood powder, processing aid, coupling agent, stearic acid, other auxiliarys;
(b)
Material heat mixing: the wood materials of recovery is pulverized and obtains wood powder, wood powder is gathered and dries, add coupling agent and carry out surface modification, obtain modified wood powder for subsequent use, all material drops into Hot mixer device, high speed rotating according to the ratio of parts by weight, mix, open drain hole, discharge, to cold mixer, treats that temperature of charge drops to 40 DEG C ~ 60 DEG C mixture operations and completes;
(c)
Mould is extruded: sent in twin screw extruder by the batch mixing mixed, material fully merges under the effect of screw rod, through getting to know extruding pelletization;
D () is shaped: it is hot-forming that hot pressing die put into by the pellet after extruding pelletization, then through Vacuum shaping;
(e) draw: the material after shape is cooled, after draw, acquisition Wood-plastic material.
Embodiment:
Prepare material: thermoplastics 55kg, calcium carbonate 25kg, diatom ooze powder 5kg, wood powder 20kg, coupling agent 5kg, processing aid CP-1 3kg, processing aid 278 6kg, processing aid h-80.8kg, stearic acid 0.75kg, compatilizer 3kg, chlorinatedpolyethylene CPE 6kg, without lead stabilizer 3.5kg and lubricant PE wax 0.5kg.Thermoplastics selects discarded recycled plastic.
The wood materials of recovery is pulverized and obtains wood powder, wood powder is gathered and dries, the drying time of wood powder is 10 hours, and bake out temperature is 110 DEG C, and wood powder needs to be crushed to 100 orders, add coupling agent again and carry out surface modification, obtain modified wood powder for subsequent use, all material drops into Hot mixer device, high speed rotating according to the ratio of parts by weight, Hot mixer device treats that mixing of materials temperature reaches 120 DEG C and transfers low-speed running to by running up, and mixing time is 8 minutes.Mix, open drain hole, discharge, to cold mixer, treats that temperature of charge drops to 50 DEG C of mixture operations and completes.
Sent in twin screw extruder by the batch mixing mixed, twin screw extruder rotating speed is 26rpm, and material fully merges under the effect of screw rod, through getting to know extruding pelletization; Extruding pelletization temperature is 240 DEG C, die head district.
It is hot-forming that hot pressing die put into by pellet after extruding pelletization, and molding temperature is 160 DEG C, and hot pressing time is 15 minutes, and die pressure is 15MPa, then through Vacuum shaping.
Cooled by material after having shaped, cooling conditions is water cycle, and cooling time is 15 minutes, after draw, obtain Wood-plastic material.
The present invention, adopts thermoplastics to mix with wood powder, weighting agent, by compatilizer and coupling agent with the use of, make the plastic components of many body system have good consistency each other, and while combination compatible with wood powder; Synthetic resin moulding compound, wood powder all select tailing waste material, save energy, reduce environmental pollution, good environmental protection, and production cost reduces; The weighting agent added is beneficial to absorption to pollutent in environment, prepares steady quality, Wood-plastic material handsome in appearance, good stability of the dimension, ageing-resistant performance are good, Absorbable rod pollutent, and material is light.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (8)
1. a production technique for Wood-plastic material, comprise material preparation, material heat mixes, mould is extruded, shapes and drawn, concrete steps are as follows:
(a)
Material prepares: prepare material and comprise thermoplastics, weighting agent, wood powder, processing aid, coupling agent, stearic acid, other auxiliarys;
(b)
Material heat mixing: the wood materials of recovery is pulverized and obtains wood powder, wood powder is gathered and dries, add coupling agent and carry out surface modification, obtain modified wood powder for subsequent use, all material drops into Hot mixer device, high speed rotating according to the ratio of parts by weight, mix, open drain hole, discharge, to cold mixer, treats that temperature of charge drops to 40 DEG C ~ 60 DEG C mixture operations and completes;
(c)
Mould is extruded: sent in twin screw extruder by the batch mixing mixed, material fully merges under the effect of screw rod, through getting to know extruding pelletization;
D () is shaped: it is hot-forming that hot pressing die put into by the pellet after extruding pelletization, then through Vacuum shaping;
(e) draw: the material after shape is cooled, after draw, acquisition Wood-plastic material.
2. the production technique of a kind of Wood-plastic material as claimed in claim 1, it is characterized in that: in described step (a), the parts by weight of each component are: thermoplastics 52 ~ 68 parts, weighting agent 23 ~ 38 parts, wood powder 18 ~ 30 parts, processing aid 8 ~ 10 parts, coupling agent 2 ~ 5 parts, stearic acid 0.5 ~ 1 part, other auxiliarys 12 ~ 15 parts.
3. the production technique of a kind of Wood-plastic material as claimed in claim 1, it is characterized in that: in described step (a), thermoplastics is the wherein one of polypropylene, polyvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene copolymer, and thermoplastics selects discarded recycled plastic.
4. the production technique of a kind of Wood-plastic material as claimed in claim 1, is characterized in that: in described step (a), weighting agent comprises calcium carbonate and diatom ooze powder, and the ratio of calcium carbonate and diatom ooze powder is 4.2 ~ 4.5:0.8 ~ 1.2; Processing aid comprises processing aid CP-1, processing aid 278 and processing aid h-8, and the ratio of processing aid CP-1, processing aid 278 and processing aid h-8 is 2.5 ~ 3.5:5 ~ 7:0.6 ~ 1.0; Other auxiliarys comprise compatilizer, chlorinatedpolyethylene CPE, without lead stabilizer and lubricant PE wax, the ratio of each component is 2.5 ~ 3.5:5 ~ 7:3.2 ~ 4.0:0.4 ~ 0.6.
5. the production technique of a kind of Wood-plastic material as claimed in claim 1, it is characterized in that: in described step (b), the wood materials reclaimed comprises wherein one or more the mixing of stalk, rice chaff, wooden scrap stock, sawdust, wood powder needs to be crushed to 60 ~ 100 orders, the drying time of wood powder is 8 ~ 10 hours, and bake out temperature is 95 DEG C ~ 110 DEG C; Hot mixer device treats that mixing of materials temperature reaches 110 DEG C ~ 130 DEG C and transfers low-speed running to by running up, and mixing time is 6 ~ 10 minutes.
6. the production technique of a kind of Wood-plastic material as claimed in claim 1, is characterized in that: in described step (c), twin screw extruder rotating speed is 26rpm, and extruding pelletization temperature is 240 DEG C ~ 250 DEG C, die head district.
7. the production technique of a kind of Wood-plastic material as claimed in claim 1, is characterized in that: in described step (d), and molding temperature is 160 DEG C ~ 180 DEG C, and hot pressing time is 10 ~ 15 minutes, and die pressure is 10 ~ 25MPa.
8. the production technique of a kind of Wood-plastic material as claimed in claim 1, it is characterized in that: in described step (e), cooling conditions is water cycle, cooling time is 5 ~ 15 minutes.
Priority Applications (1)
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| CN201510361947.XA CN104927386A (en) | 2015-06-24 | 2015-06-24 | Wood plastic material production process |
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| CN201510361947.XA CN104927386A (en) | 2015-06-24 | 2015-06-24 | Wood plastic material production process |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106479210A (en) * | 2016-11-08 | 2017-03-08 | 佛山市炬业科技有限公司 | For making plastic-wood material of shock resistance door-plate and preparation method thereof |
| CN107057188A (en) * | 2017-04-12 | 2017-08-18 | 苏州轩朗塑料制品有限公司 | The preparation method and applications of environment-friendly biomass plastic material |
| CN109825026A (en) * | 2019-01-29 | 2019-05-31 | 安徽天光传感器有限公司 | A method of sensor outer housing material is prepared with illite-straw fibers modified waste plastics |
| CN111571974A (en) * | 2020-05-26 | 2020-08-25 | 石狮市金合包装科技有限公司 | Novel extrusion molding process and application thereof in production of packaging boxes |
| CN111925579A (en) * | 2020-07-12 | 2020-11-13 | 武汉柒合兴制造有限公司 | Wood-plastic board processing technology |
| CN108892964B (en) * | 2018-06-07 | 2021-04-20 | 湖南映宏新材料股份有限公司 | Polyolefin wood-plastic composite material and preparation method thereof |
| CN113603978A (en) * | 2021-05-12 | 2021-11-05 | 昆明理工大学 | Flame-retardant smoke-suppression type high-mechanical-property flame-retardant PVC/PE (polyvinyl chloride/polyethylene) -based wood-plastic composite material and preparation method thereof |
| CN114456515A (en) * | 2021-12-31 | 2022-05-10 | 安徽科居新材料科技有限公司 | PVC (polyvinyl chloride) wood-plastic composite material with high impact resistance and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106479210A (en) * | 2016-11-08 | 2017-03-08 | 佛山市炬业科技有限公司 | For making plastic-wood material of shock resistance door-plate and preparation method thereof |
| CN107057188A (en) * | 2017-04-12 | 2017-08-18 | 苏州轩朗塑料制品有限公司 | The preparation method and applications of environment-friendly biomass plastic material |
| CN108892964B (en) * | 2018-06-07 | 2021-04-20 | 湖南映宏新材料股份有限公司 | Polyolefin wood-plastic composite material and preparation method thereof |
| CN109825026A (en) * | 2019-01-29 | 2019-05-31 | 安徽天光传感器有限公司 | A method of sensor outer housing material is prepared with illite-straw fibers modified waste plastics |
| CN111571974A (en) * | 2020-05-26 | 2020-08-25 | 石狮市金合包装科技有限公司 | Novel extrusion molding process and application thereof in production of packaging boxes |
| CN111925579A (en) * | 2020-07-12 | 2020-11-13 | 武汉柒合兴制造有限公司 | Wood-plastic board processing technology |
| CN113603978A (en) * | 2021-05-12 | 2021-11-05 | 昆明理工大学 | Flame-retardant smoke-suppression type high-mechanical-property flame-retardant PVC/PE (polyvinyl chloride/polyethylene) -based wood-plastic composite material and preparation method thereof |
| CN114456515A (en) * | 2021-12-31 | 2022-05-10 | 安徽科居新材料科技有限公司 | PVC (polyvinyl chloride) wood-plastic composite material with high impact resistance and preparation method thereof |
| CN114456515B (en) * | 2021-12-31 | 2023-02-28 | 安徽科居新材料科技有限公司 | PVC (polyvinyl chloride) wood-plastic composite material with high impact resistance and preparation method thereof |
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