CN107118585A - A kind of production technology of sound-absorbing wood-plastic board - Google Patents
A kind of production technology of sound-absorbing wood-plastic board Download PDFInfo
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- CN107118585A CN107118585A CN201710531373.5A CN201710531373A CN107118585A CN 107118585 A CN107118585 A CN 107118585A CN 201710531373 A CN201710531373 A CN 201710531373A CN 107118585 A CN107118585 A CN 107118585A
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- sound
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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
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- 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
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of production technology of sound-absorbing wood-plastic board, comprise the following steps：1）Wood-plastic material is formulated；2）Filler processing；3）Wood powder mixing treatment；4）Injection raw material is processed；5）Cooling；6）Extruder is once extruded；7）The secondary extrusion of extruder；8）Cooling down；The simple production process, feasibility is high, and the quality of the wood-plastic board of production is high, and service life is long, and with preferable sound-absorbing effect, can be widely applied for building trade.
Description
Technical field
The present invention relates to a kind of production technology of sound-absorbing wood-plastic board.
Background technology
Wood plastic composite has many advantages, such as more incomparable than simple timber and plastics, and the material is environmental protection
Material, mechanical property is good, existing good processability, the molded property for having plastics again, and thermal conductivity and stability are strong, beautiful outline form
See, and Wood-plastic material can be recycled in use for some time, and its process equipment is simple, and cost is than pure timber or modeling
Expect low, the various advantages based on wood plastic composite, it has been widely used in the every field of daily life, can produce use
Bed board, skirting, ceiling, decorative panel, wallboard dividing plate moist-proof board etc., are also used as Decorative frame, fence, garden handrail
Etc., but existing wood-plastic board uses and does not have sound-absorbing, soundproof effect, and the wood moulding processed also in architectural material
The quality of plate is not high enough, and the life-span used is restricted.
The content of the invention
For above-mentioned problem, the present invention is intended to provide a kind of production technology of sound-absorbing wood-plastic board, the production technology
Simply, feasibility is high, and the quality of the wood-plastic board of production is high, and service life is long, and with preferable sound-absorbing effect, can be extensive
For building trade.
To achieve these goals, the technical solution adopted in the present invention is as follows：
A kind of production technology of sound-absorbing wood-plastic board, comprises the following steps：
1）Wood-plastic material is formulated：Include resin 25%, filler 30% according to mass fraction, wood powder batch mixing 35%, auxiliary agent 10% is described to help
Agent includes stabilizer, lubricant, foaming agent, coupling agent；
2）Filler processing：Filler carries out tertiary treatment through 500 mesh, 800 mesh and 1000 mesh mesh screens；
3）Wood powder mixing treatment：Including broken, removal of impurities and screening process, it is sieved through 60,80,100 mesh mesh screens and carries out successively
Processing, carries out drying operation to wood powder batch mixing after screening, drying temperature is 60-65 DEG C, the programming rate of drying temperature for 5 DEG C/
Moisture is not higher than 1% after min, drying；
4）Injection raw material is processed：Filler and wood powder batch mixing are proportionally added in high mixer, 100-105 DEG C of mixture temperature, mixed
Expect after 30min, add coupling agent, mix 110-115 DEG C, shutdown opens high mixer big lid 5-6 minutes, treats the temperature in high mixer
Degree drops to 100 DEG C and adds resin, stabilizer, gradually cools, 2 DEG C/min of cooling rate is subsequently added into lubricant, is warming up to 100
DEG C, 5 DEG C/min of programming rate is warming up to 100 DEG C of insulation 10min, is subsequently added into foaming agent, is warming up to 120-125 DEG C, heating speed
Spend 5 DEG C/min, discharging；
5）Cooling：When batch mixing is cooled into 40 DEG C in cooling bucket, prepares granulation, granulated by comminutor；
6）Extruder is once extruded：Square wood-plastic board single-piece is extruded by extruder, integrated injection molding in the square wood-plastic board single-piece
It is molded sound-absorption hole；
7）The secondary extrusion of extruder：More mold exchange, above-mentioned square wood-plastic board single-piece is placed in mould, entered by feeding machine
Row feeding sound-absorbing material and coupling agent, the injection molding sound absorbing layer in sound-absorption hole；
8）Cooling down：Using air-cooled carry out cooling down.
Preferably, the step（1）In " filler " include precipitated calcium carbonate, powdered whiting and activated Calcium carbonate three
Kind, three kinds of ratio is respectively 1:1:1.
Preferably, the step（1）In " wood powder batch mixing " include pine powder, powder of straw and peanut shell powder, three's
Ratio is respectively 3:2:1.
Preferably, the step（5）In high mixer feed end set particle feeding mechanism, the particle feeding mechanism bag
Feeding hopper and order blanking device are included, the order blanking device is arranged on inside the feeding hopper.
Preferably, setting top feeding trough inside the feeding hopper, the order blanking device includes at least two internal diameters
The order blanking tube being sequentially reduced.
Preferably, being equipped with inclined material toggling backgauge piece, the material toggling backgauge piece in each order blanking tube
For hollow half cylindrical structure.
Preferably, the step（6）In to processing injecting hole in the sound-absorption hole of injection molding, and to sound-absorption hole and note
Mole carries out grinding process, makes its rough inner surface.
Preferably, the step（7）Before middle addition sound-absorbing material, sound-absorbing material and coupling agent are sufficiently mixed, both
Ratio be 10:1.
The beneficial effects of the invention are as follows：First, the present invention is improved to the structure of wood-plastic board, by being molded into twice
Type, is molded by the wood-plastic board with sound absorption function, and the preparation method is simple, high yield rate, and the wood-plastic board quality of preparation is high, uses
Long lifespan, the combination of sound absorbing layer and wood moulding flaggy is consolidated, and outward appearance is good；
Secondly, the present invention is improved to the extruder feeding mechanism once extruded, by the way of particle sequential feeding, because
Raw material after the granulation more easy-formation in injection, and machine will not be blocked, reduce the probability that machine breaks down.
Brief description of the drawings
Fig. 1 is the structural representation of wood-plastic board of the present invention.
Fig. 2 is the structural representation of particle feeding mechanism of the present invention.
Wherein：The square wood-plastic board single-pieces of 1-, 2- sound absorbing layers, 3- injecting holes, 4- feeding hoppers, 5- tops feeding trough, 6- orders
Blanking tube, 7- material toggling backgauge pieces, 8- return facilitieses.
Embodiment
In order that one of ordinary skill in the art is better understood on technical scheme, below in conjunction with the accompanying drawings and
Embodiment is further described to technical scheme.
Embodiment：A kind of production technology of sound-absorbing wood-plastic board, comprises the following steps：
1）Wood-plastic material is formulated：Include resin 25%, filler 30% according to mass fraction, wood powder batch mixing 35%, auxiliary agent 10% is described to help
Agent includes stabilizer, lubricant, foaming agent, coupling agent；Stabilizer, lubricant, foaming agent, coupling agent content are respectively 2.5%；
The ratio that " filler " includes three kinds, three kinds of precipitated calcium carbonate, powdered whiting and activated Calcium carbonate is respectively 1:1:1, " wood powder
Batch mixing " includes pine powder, powder of straw and peanut shell powder, and the ratio of three is respectively 3:2:1, pine powder, powder of straw and flower
Raw shell powder three is secondary by leading, and adds powder of straw and peanut shell powder replaces the wood powder of part, can greatly save cost, and production
Wood-plastic board quality it is unaffected, Wheat Straw can also be used, it is to avoid burn the problem of environmental pollution that causes of Wheat Straw；
2）Filler processing：Filler carries out tertiary treatment through 500 mesh, 800 mesh and 1000 mesh mesh screens, and drying is handled；Filler
The quality of granulation, and density are ensure that after tertiary treatment, the quality of wood moulding plate injection moulding is improved；
3）Wood powder mixing treatment：Including broken, removal of impurities and screening process, it is sieved through 60,80,100 mesh mesh screens and carries out successively
Processing, carries out drying operation to wood powder batch mixing after screening, drying temperature is 60-65 DEG C, the programming rate of drying temperature for 5 DEG C/
Moisture is not higher than 1% after min, drying；The removal of impurities of wood powder is by constantly stirring, wind-force being aided in during stirring
Mechanism, the material in agitator is constantly blown afloat, the vertically arranged magnet strip in agitator, the metal that will be mixed into wood powder batch mixing
Particle significantly carries out removal of impurities, it is ensured that the quality of wood-plastic board production；
4）Injection raw material is processed：Filler and wood powder batch mixing are proportionally added in high mixer, 100-105 DEG C of mixture temperature, mixed
Expect after 30min, add coupling agent, mix 110-115 DEG C, shutdown opens high mixer big lid 5-6 minutes, treats the temperature in high mixer
Degree drops to 100 DEG C and adds resin, stabilizer, gradually cools, 2 DEG C/min of cooling rate is subsequently added into lubricant, is warming up to 100
DEG C, 5 DEG C/min of programming rate is warming up to 100 DEG C of insulation 10min, is subsequently added into foaming agent, is warming up to 120-125 DEG C, heating speed
Spend 5 DEG C/min, discharging；
5）Cooling：When batch mixing is cooled into 40 DEG C in cooling bucket, prepares granulation, granulated by comminutor；
6）Extruder is once extruded：Referring to the drawings shown in 1, square wood-plastic board single-piece 1 is extruded by extruder, the square wood-plastic board
Integrated injection molding sound-absorption hole in single-piece 1；To processing injecting hole 3 in the sound-absorption hole of injection molding, and to sound-absorption hole and injection
Hole 3 carries out grinding process, makes its rough inner surface, sound-absorption hole can be circular port that is square or setting at equal intervals,
, can be with wood under the sound-absorbing material condition of high temperature when purpose of polishing injecting hole 3 is for secondary extrusion molding after injection molding
Mould plate is preferably combined, and improves the firmness after both combine；
7）The secondary extrusion of extruder：More mold exchange, is placed in mould after above-mentioned square wood-plastic board single-piece 1 is merged, passes through
Feeding machine carries out feeding sound-absorbing material and coupling agent, adds before sound-absorbing material, sound-absorbing material and coupling agent are sufficiently mixed, both
Ratio be 10:1, the injection molding sound absorbing layer 2 in sound-absorption hole；High mixer feed end sets particle feeding mechanism, referring to the drawings 2
Shown, the particle feeding mechanism includes feeding hopper 4 and order blanking device, and the order blanking device is arranged on the feeding hopper 4
Inside, the inside of feeding hopper 4 sets top feeding trough 5, and the order blanking device includes what at least two internal diameters were sequentially reduced
Order blanking tube 6, is equipped with inclined material toggling backgauge piece 7 in each order blanking tube 6, and the material toggling backgauge piece 7 is
Hollow half cylindrical structure, the upper end of material toggling backgauge piece 7 is movably connected in order blanking tube 6, and bottom passes through the bullet of return facilities 8
Property support, granulate the blanking of order blanking tube 6 that is sequentially reduced by internal diameter, then aid in excessively by material toggling backgauge piece 7, guarantor
Card more than blankings successively of granulation, prevent from blanking too fast resulting in blockage to feed end phenomenon, realize orderly feeding, order blanking
Device can set 2-3 groups, improve the speed of blanking.
8）Cooling down：Using air-cooled carry out cooling down.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of production technology of sound-absorbing wood-plastic board, it is characterised in that comprise the following steps：
1）Wood-plastic material is formulated：Include resin 25%, filler 30% according to mass fraction, wood powder batch mixing 35%, auxiliary agent 10% is described to help
Agent includes stabilizer, lubricant, foaming agent, coupling agent；
2）Filler processing：Filler carries out tertiary treatment through 500 mesh, 800 mesh and 1000 mesh mesh screens；
3）Wood powder mixing treatment：Including broken, removal of impurities and screening process, it is sieved through 60,80,100 mesh mesh screens and carries out successively
Processing, carries out drying operation to wood powder batch mixing after screening, drying temperature is 60-65 DEG C, the programming rate of drying temperature for 5 DEG C/
Moisture is not higher than 1% after min, drying；
4）Injection raw material is processed：Filler and wood powder batch mixing are proportionally added in high mixer, 100-105 DEG C of mixture temperature, mixed
Expect after 30min, add coupling agent, mix 110-115 DEG C, shutdown opens high mixer big lid 5-6 minutes, treats the temperature in high mixer
Degree drops to 100 DEG C and adds resin, stabilizer, gradually cools, 2 DEG C/min of cooling rate is subsequently added into lubricant, is warming up to 100
DEG C, 5 DEG C/min of programming rate is warming up to 100 DEG C of insulation 10min, is subsequently added into foaming agent, is warming up to 120-125 DEG C, heating speed
Spend 5 DEG C/min, discharging；
5）Cooling：When batch mixing is cooled into 40 DEG C in cooling bucket, prepares granulation, granulated by comminutor；
6）Extruder is once extruded：Square wood-plastic board single-piece is extruded by extruder, integrated injection molding in the square wood-plastic board single-piece
It is molded sound-absorption hole；
7）The secondary extrusion of extruder：More mold exchange, above-mentioned square wood-plastic board single-piece is placed in mould, entered by feeding machine
Row feeding sound-absorbing material and coupling agent, the injection molding sound absorbing layer in sound-absorption hole；
8）Cooling down：Using air-cooled carry out cooling down.
2. a kind of production technology of sound-absorbing wood-plastic board according to claim 1, it is characterised in that：The step（1）In " fill out
The ratio that material " includes three kinds, three kinds of precipitated calcium carbonate, powdered whiting and activated Calcium carbonate is respectively 1:1:1.
3. a kind of production technology of sound-absorbing wood-plastic board according to claim 1, it is characterised in that：The step（1）In " wood
Powder batch mixing " includes pine powder, powder of straw and peanut shell powder, and the ratio of three is respectively 3:2:1.
4. a kind of production technology of sound-absorbing wood-plastic board according to claim 1, it is characterised in that：The step（5）In
High mixer feed end sets particle feeding mechanism, and the particle feeding mechanism includes feeding hopper and order blanking device, the order
Blanking device is arranged on inside the feeding hopper.
5. a kind of production technology of sound-absorbing wood-plastic board according to claim 4, it is characterised in that：Set inside the feeding hopper
Top feeding trough is put, the order blanking device includes the order blanking tube that at least two internal diameters are sequentially reduced.
6. a kind of production technology of sound-absorbing wood-plastic board according to claim 5, it is characterised in that：Under each order
Inclined material toggling backgauge piece is equipped with barrel, the material toggling backgauge piece is hollow half cylindrical structure.
7. a kind of production technology of sound-absorbing wood-plastic board according to claim 1, it is characterised in that：The step（6）In it is right
Processing injecting hole in the sound-absorption hole of injection molding, and grinding process is carried out to sound-absorption hole and injecting hole, make its rough inner surface.
8. a kind of production technology of sound-absorbing wood-plastic board according to claim 1, it is characterised in that：The step（7）In plus
Enter before sound-absorbing material, sound-absorbing material and coupling agent are sufficiently mixed, both ratios are 10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710531373.5A CN107118585B (en) | 2017-07-03 | 2017-07-03 | Production process of sound-absorbing wood-plastic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710531373.5A CN107118585B (en) | 2017-07-03 | 2017-07-03 | Production process of sound-absorbing wood-plastic plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107118585A true CN107118585A (en) | 2017-09-01 |
| CN107118585B CN107118585B (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710531373.5A Active CN107118585B (en) | 2017-07-03 | 2017-07-03 | Production process of sound-absorbing wood-plastic plate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074339A (en) * | 2014-07-07 | 2014-10-01 | 张家港爱丽塑料有限公司 | Dampproof sound isolation elastic plastic floor and preparing method of dampproof sound isolation elastic plastic floor |
| CN204712423U (en) * | 2015-03-26 | 2015-10-21 | 常州回天新材料有限公司 | Oscillating mode curtain coating extruder |
| CN106696367A (en) * | 2016-10-31 | 2017-05-24 | 大连华工创新科技股份有限公司 | Plastic composite board and forming method |
| CN106739355A (en) * | 2017-03-16 | 2017-05-31 | 天津市浩迪橡塑科技有限公司 | Composite Hollow sound-absorbing material structural damping plate and preparation method thereof |
-
2017
- 2017-07-03 CN CN201710531373.5A patent/CN107118585B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074339A (en) * | 2014-07-07 | 2014-10-01 | 张家港爱丽塑料有限公司 | Dampproof sound isolation elastic plastic floor and preparing method of dampproof sound isolation elastic plastic floor |
| CN204712423U (en) * | 2015-03-26 | 2015-10-21 | 常州回天新材料有限公司 | Oscillating mode curtain coating extruder |
| CN106696367A (en) * | 2016-10-31 | 2017-05-24 | 大连华工创新科技股份有限公司 | Plastic composite board and forming method |
| CN106739355A (en) * | 2017-03-16 | 2017-05-31 | 天津市浩迪橡塑科技有限公司 | Composite Hollow sound-absorbing material structural damping plate and preparation method thereof |
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|---|---|
| CN107118585B (en) | 2021-02-09 |
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