CN103374221A - Preparation method of novel high-density composite material - Google Patents
Preparation method of novel high-density composite material Download PDFInfo
- Publication number
- CN103374221A CN103374221A CN2012101158329A CN201210115832A CN103374221A CN 103374221 A CN103374221 A CN 103374221A CN 2012101158329 A CN2012101158329 A CN 2012101158329A CN 201210115832 A CN201210115832 A CN 201210115832A CN 103374221 A CN103374221 A CN 103374221A
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- Prior art keywords
- powder
- coupling agent
- ferrite powder
- raw material
- barrel
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Classifications
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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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Abstract
The invention relates to a preparation method of a novel high-density composite material. The process flow comprises the following steps: drying a raw material, coupling, mixing, extruding melt, pulling and granulating, drying and packaging. The high-density composite material prepared by the invention is a novel composite material prepared by adopting thermoplastic engineering plastics or thermosetting plastic as a base material and adding high-density fillers in the base material, and has an excellent combination property.
Description
Technical field
The present invention relates to a kind of composite manufacture method, relate in particular to a kind of novel high-density composite manufacture method, belong to the matrix material preparing technical field.
Background technology
Matrix material (Composite materials) is by two or more material of different nature, by the method for physics or chemistry, forms the material with new capability in macroscopic view.Various materials make up for each other's deficiencies and learn from each other in performance, produce synergistic effect, make the over-all properties of matrix material be better than former composition material and satisfy various requirement.The body material of matrix material is divided into metal and nonmetal two large classes.Nonmetal basal body mainly contains synthetic resins, rubber, pottery, graphite, carbon etc.Strongthener mainly contains glass fibre, carbon fiber, boron fibre, aramid fiber, silicon carbide fiber, fibrous magnesium silicate, whisker, wire and hard particulates etc.
The main application fields of matrix material has: 1. aerospace field.Because matrix material Heat stability is good, specific tenacity, specific rigidity are high, can be used for making the housing, motor body, space shuttle structural part of aircraft wing and forebody, satellite antenna and supporting structure thereof, solar panel and shell, Large Launch Vehicle etc.2. automotive industry.Because matrix material has special vibration damping characteristic, damping and reduce noise, anti-fatigue performance is good, easily repairs after the damage, is convenient to monolithic molding, so can be used for making body of a motor car, primary structure member, transmission shaft, engine mount and internals thereof.3. chemical industry, weaving and mechanical manufacturing field.The carbon fiber of good corrosion resistance and the material that resin matrix is composited are arranged, can be used for making chemical industry equipment, weaving loom, paper machine, duplicating machine, high-speed machine tool, precision instrument etc.4. medical field.Carbon-fibre composite has excellent mechanical property and absorption of x-rays characteristic not, can be used for making medical x-ray machine and orthopedic frame etc.Carbon-fibre composite also has biological tissue's consistency and blood compatibility, and the coenocorrelation stability inferior is good, also as biomedical material.In addition, matrix material is also for the manufacture of the sports device with as material of construction etc.As: CN102322176A discloses a kind of preparation method of imitation metal composite door handle, relates to the polymer plastic glue material is machined to matrix material by twin-screw extrusion after mixing with inorganic filling material, fiber, coupling agent and lubrication prescription.
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Summary of the invention
The object of the present invention is to provide a kind of novel high-density composite manufacture method.The high density composite of the present invention preparation is a kind of novel take thermoplastic engineering plastic or thermosetting resin as base material and add therein the advanced composite material that the high-density stopping composition is made, and it has good over-all properties.
The bright purpose of this law is achieved in that
A kind of novel high-density composite manufacture method comprises the steps:
(1) raw material drying: at 100 ℃ of lower dry 1-2h, make the moisture control of ferrite powder, PA6 powder and super tough PA66≤0.2% ferrite powder, PA6 powder and super tough PA66;
(2) filler pre-treatment: take by weighing the dry ferrite powder of crossing, send in the barrel of high-speed mixer, simultaneously the Silane coupling agent KH550 that weighs up is poured in the material bottle of atomizing and spraying apparatus, open described high-speed mixer, ferrite powder in stirring and the preheating barrel, then open described atomizing and spraying apparatus, the ferrite powder in described high-speed mixer barrel sprays Silane coupling agent KH550, continues after the been sprayed to stir 15-30 minute; Press same method and add titanate coupling agent FD401;
(3) mix: take by weighing PA6 powder, super tough PA66 and ethylene bis stearic acid amide, then pour in the barrel of described high-speed mixer, continue to stir 10-30 minute, obtain mixing raw material;
(4) extruding pelletization: the mixing raw material of step (3) preparation is put in the double-screw extruding pelletizing machine, and screw speed 250-500rpm, becomes line through melting, mixing extrusion by 240-300 ℃;
(5) traction pelletizing: the stockline that will extrude from the double-screw extruding pelletizing machine from die head draw, the wind cooling, then be cut into the particle of diameter 2-4mm, length 3-5mm by dicing machine;
Wherein, among the described preparation method, ferrite powder: Silane coupling agent KH550: titanate coupling agent FD401:PA6 powder: super tough PA66: the weight ratio=65-80:1:1:10-12:13:1 of ethylene bis stearic acid amide.
Preferably, described novel high-density composite manufacture method is wherein put into the mixing raw material of step (3) preparation in the double-screw extruding pelletizing machine, adds the glass fibre of 2 strands of water ratio≤0.2%, becomes line through melting, mixing extrusion.
Preferably; described novel high-density composite manufacture method; the stockline that wherein will extrude from the double-screw extruding pelletizing machine from die head draw, the wind cooling, then set rotating speed 300-600 rpm, be cut into the particle of diameter 2-4mm, length 3-5mm by dicing machine.
The high density composite of the present invention's preparation is mainly used in being injection molded into various goods, obtains in fields such as electronic industry, automobile, machinery, measurement instrument industry, industrial equipment to use increasingly extensively.Main application is summed up as follows:
(1) feel of gaining in weight: swivel body, golf club head, angling gears etc.
(2) increase metal-like: simulated toy, sound equipment operating panel, automotive trim panel, artwork.
Compared with prior art, the bright novel high-density composite manufacture method that relates to of this law has following advantage and significant progressive:
(1) composite density of preparing is large, and mechanical property and resistance toheat are good, but injection moulding, and the injection-molded item surface gloss is high.
(2) in addition, because having high-density, high-mechanical property, the matrix material that the present invention prepares is a imitative metallic substance.
Embodiment
The ultimate principle that the high density composite that the present invention relates to is produced is as follows:
1. raw material drying
When raw material drying referred to that wet stock is heated to certain temperature, moisture was taken away from the top by hot blast by the vaporization of material surface.Produced thus material interior humidity and surface temperature difference, moisture just by the inside of material to the material surface diffusion.When this vaporescence and diffusion process reach desired degree, be dry terminal point.Dry purpose is in next process, as not having moisture content and outward appearance and the performance of the product that exerts an influence because of in the material in mixing, intensification, plasticizing, the mixing process.Comprise that the starting material such as plastic basis material, high-density packing all must carry out drying before mixing granulation, this is extremely important to guaranteeing quality product.
The metering and mix
High density composite needs first coupling agent to be mixed with large density filler in the course of processing, makes coupling agent and large density filler generation chemical reaction, after question response is complete, adds the auxiliary agent such as lubricant again and mixes.So must be before entering forcing machine, these raw materials all will carry out accurate-metering and fully mix.The principle of mixing is to make above-mentioned material be issued to uniform dispersion in high-speed stirring by External Force Acting, and this makes material when entering next process (extruding pelletization), can be lower to the Screw Extrusion granulation uniformly according to the proportioning of formulating of recipe.
3. extrude principle
The used major equipment of this product is twin screw extruder.Material enters the transportation section of screw rod from the opening for feed of twin screw by the compulsory type charging system.Material relies on the forced conveyance that rotatablely moves, the intensification of screw rod, enters very soon the compression section of screw rod.It is mixing that material relies on engagement position and mixing position to force in the compression section, and the heat of machine barrel passes to material, makes material plasticizing.The material that plasticizing is good continues reach under screw acting, and meets with the continuous glass-fiber that enters, and mixes.Continuous glass-fiber is sheared the piece chopping in the reach process, and fully mediates with material.Pass through again homogenizing zone and emptying section, broken glass is evenly distributed in material, reach enhancement, and by head with go out filament plate and be extruded into bar.
Form is described in further detail foregoing of the present invention again by the following examples, but this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology that realizes based on foregoing of the present invention all belong to scope of the present invention.
The quality index of used material:
Silane coupling agent:
Titanate coupling agent:
| Project | Index | Detection method |
| Producer and the trade mark: | 1. producer: the Hangzhou boiling point chemical industry company limited trade mark: FD401 | Range estimation |
| Outward appearance: | Little yellow transparent liquid, the whole uniformity of liquid is without the obvious sediment thing | Range estimation |
| Density | 0.945 ± 0.005 | Liquid density instrument |
| Water-soluble: | Water insoluble, milky white liquid or white depositions appear | Be configured to by volume 2% the aqueous solution, observe after 5 minutes with the glass stick stirring. |
Ferrite powder:
| Test event | Index | Detection method |
| The particle diameter test | 1.0-2.5μm >85% | Test according to the GB/T19077.1-2008 standard with laser particle analyzer |
| The screenings test | 200 mesh sieves, surplus 0.75% | Test according to GB/T5211.14-1988 with 200 mesh sieve |
| Water ratio | 0.5% | Test according to the C-L-011 standard with moisture tester |
| The pH value | 11 | Test according to the ISO787-9-1995 standard with the extensive test paper of pH or PH meter |
PA6：
Super tough PA66:
| Raw material | Index | Detection method |
| Outward appearance | White particle | Range estimation |
| The Izod notched Izod impact strength | ≥J/m | ? |
| Tensile strength | ≥62Mpa | ? |
EBS：
| Raw material | Index | Detection method |
| Title | Ethylene bis stearic acid amide (EBS) | Range estimation |
| Outward appearance | The white powdered | Range estimation |
| Fusing point | 140-160℃ | Differential scanning calorimeter (DSC) |
Glass fibre:
| Raw material | Index | Detection method |
| Title | Glass continuous filament yarn (alkali-free roving) | Range estimation |
| Producer and the trade mark: | Producer: Jushi Group Co., Ltd. | ? |
| Moisture: | ≤1.5% | Moisture tester |
| Oil length: | 0.4-1.0% | ? |
| Diameter: | 17±2.5 um | Metaloscope |
The preparation of embodiment 1 high density composite
The technological process of production of high density composite is as follows: raw material drying, coupling processing, mix, melt extrude, draw pelletizing, drying, packing.
Material proportion:
| The starting material title | Proportioning (umber) |
| The PA6 powder | 12 |
| Super tough PA66 | 13 |
| Ferrite powder | 70 |
| Silane coupling agent KH550 | 1 |
| Titanate coupling agent FD401 | 1 |
| Ethylene bis stearic acid amide (EBS) | 1 |
| Glass fibre | 2 strands |
(1) raw material drying: will need dry large density filler ferrite powder, glass fibre, PA6 powder and super tough PA66 to pour into respectively in the different baking trays, then send into baking oven, at 100 ℃ of lower dry 1-2h of temperature, make the moisture control of ferrite powder, glass fibre, PA6 powder, super tough PA66≤0.2%.
(2) filler pre-treatment: according to the weight ratio of formulating of recipe, take by weighing the dry ferrite powder of crossing with electronic scale, then ferrite powder is sent in the barrel of high-speed mixer.The Silane coupling agent KH550 that will weigh up is by weight simultaneously poured in the material bottle of atomizing and spraying apparatus.Open high-speed mixer, then the large density filler ferrite powder in stirring and the preheating barrel opens atomizing and spraying apparatus, sprays Silane coupling agent KH550 to the high-density packing of high-speed mixer barrel, continues after the been sprayed to stir 15-30 minute.Press same method and add titanate coupling agent FD401.
(3) mix: take by weighing by weight PA6 powder, super tough PA66, EBS, then pour high-speed mixer into, continue to stir 10-30 minute, 120 ± 5 ℃ of barrel temperatures obtain mixing raw material.
(4) extruding pelletization: above-mentioned mixing raw material is put in the double-screw extruding pelletizing machine, added 2 strands of glass fibre, screw speed 350 rpm, become line through melting, mixing extrusion by 280 ℃.
(5) traction pelletizing: the stockline that will extrude from the double-screw extruding pelletizing machine from die head draw, the wind cooling, then set rotating speed 400 rpm, then be cut into the particle of diameter 2-4mm length 3-5mm by dicing machine.
The product index of embodiment 1 preparation
The preparation of embodiment 2 high density composites
Material proportion:
| The starting material title | Proportioning (umber) |
| The PA6 powder | 10 |
| Super tough PA66 | 13 |
| Ferrite powder | 75 |
| Silane coupling agent KH550 | 1 |
| Titanate coupling agent FD401 | 1 |
| Ethylene bis stearic acid amide (EBS) | 1 |
(1) raw material drying: will need dry large density filler ferrite powder, PA6 powder and super tough PA66 to pour into respectively in the different baking trays, then send into baking oven, at 100 ℃ of lower dry 1-2h of temperature, make the moisture control of ferrite powder, glass fibre, PA6 powder, super tough PA66≤0.2%.
(2) filler pre-treatment: according to the weight ratio of formulating of recipe, take by weighing the dry ferrite powder of crossing with electronic scale, then ferrite powder is sent in the barrel of high-speed mixer.The Silane coupling agent KH550 that will weigh up is by weight simultaneously poured in the material bottle of atomizing and spraying apparatus.Open high-speed mixer, then the large density filler ferrite powder in stirring and the preheating barrel opens atomizing and spraying apparatus, sprays Silane coupling agent KH550 to the high-density packing of high-speed mixer barrel, continues after the been sprayed to stir 15-30 minute.Press same method and add titanate coupling agent FD401.
(3) mix: take by weighing by weight PA6 powder, super tough PA66, EBS, then pour high-speed mixer into, 120 ± 5 ℃ of barrel temperatures continue to stir 10-30 minute, obtain mixing raw material.
(4) extruding pelletization: above-mentioned mixing raw material is put in the double-screw extruding pelletizing machine, and screw speed 450 rpm, become line through melting, mixing extrusion by 250 ℃.
(5) traction pelletizing: the stockline that will extrude from the double-screw extruding pelletizing machine from die head draw, the wind cooling, then set rotating speed 500rpm, then be cut into the particle of diameter 2-4mm length 3-5mm by dicing machine.
The product index of embodiment 2 preparations
Claims (3)
1. a novel high-density composite manufacture method comprises the steps:
(1) raw material drying: at 100 ℃ of lower dry 1-2h, make the moisture control of ferrite powder, PA6 powder and super tough PA66≤0.2% ferrite powder, PA6 powder and super tough PA66;
(2) filler pre-treatment: take by weighing the dry ferrite powder of crossing, send in the barrel of high-speed mixer, simultaneously the Silane coupling agent KH550 that weighs up is poured in the material bottle of atomizing and spraying apparatus, open described high-speed mixer, ferrite powder in stirring and the preheating barrel, then open described atomizing and spraying apparatus, the ferrite powder in described high-speed mixer barrel sprays Silane coupling agent KH550, continues after the been sprayed to stir 15-30 minute; Press same method and add titanate coupling agent FD401;
(3) mix: take by weighing PA6 powder, super tough PA66 and ethylene bis stearic acid amide, then pour in the barrel of described high-speed mixer, continue to stir 10-30 minute, obtain mixing raw material;
(4) extruding pelletization: the mixing raw material of step (3) preparation is put in the double-screw extruding pelletizing machine, and screw speed 250-500 rpm, becomes line through melting, mixing extrusion by 240-300 ℃;
(5) traction pelletizing: the stockline that will extrude from the double-screw extruding pelletizing machine from die head draw, the wind cooling, then be cut into the particle of diameter 2-4mm, length 3-5mm by dicing machine;
Wherein, among the described preparation method, ferrite powder: Silane coupling agent KH550: titanate coupling agent FD401:PA6 powder: super tough PA66: the weight ratio=65-80:1:1:10-12:13:1 of ethylene bis stearic acid amide.
2. described novel high-density composite manufacture method according to claim 1; it is characterized in that: the mixing raw material of step (3) preparation is put in the double-screw extruding pelletizing machine; add the glass fibre of 2 strands of water ratio≤0.2%, become line through melting, mixing extrusion.
3. described novel high-density composite manufacture method according to claim 1; it is characterized in that: the stockline that will extrude from the double-screw extruding pelletizing machine from die head draw, the wind cooling; then set rotating speed 300-600 rpm, be cut into the particle of diameter 2-4mm, length 3-5mm by dicing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101158329A CN103374221A (en) | 2012-04-19 | 2012-04-19 | Preparation method of novel high-density composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101158329A CN103374221A (en) | 2012-04-19 | 2012-04-19 | Preparation method of novel high-density composite material |
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| Publication Number | Publication Date |
|---|---|
| CN103374221A true CN103374221A (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101158329A Pending CN103374221A (en) | 2012-04-19 | 2012-04-19 | Preparation method of novel high-density composite material |
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| Country | Link |
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| CN (1) | CN103374221A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879362A (en) * | 2014-03-27 | 2014-06-25 | 苏州益群模具有限公司 | Automotive interior trim part |
| CN105440673A (en) * | 2015-12-23 | 2016-03-30 | 江苏金发科技新材料有限公司 | Polyamide composite material and preparation method thereof |
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| CN1556532A (en) * | 2003-12-31 | 2004-12-22 | 广东省梅州市磁性材料厂 | Magnetic particle and its manufacturing method |
| CN1790559A (en) * | 2005-12-21 | 2006-06-21 | 广州市邦德电子科技有限公司 | Magnetic particle and method for manufacturing same |
| CN101921475A (en) * | 2010-09-07 | 2010-12-22 | 厦门建霖工业有限公司 | Metal-like engineering plastic composite material and preparation method thereof |
| CN102321363A (en) * | 2011-09-16 | 2012-01-18 | 厦门建霖工业有限公司 | Ceramic-imitated plastic composite material and preparation method thereof |
| CN102352101A (en) * | 2011-06-08 | 2012-02-15 | 深圳市科聚新材料有限公司 | Plastic magnetic conductive material and preparation method thereof |
| CN102408703A (en) * | 2011-04-26 | 2012-04-11 | 深圳市科聚新材料有限公司 | Ferrite/polyamide composite material and preparation method as well as application thereof |
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2012
- 2012-04-19 CN CN2012101158329A patent/CN103374221A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556532A (en) * | 2003-12-31 | 2004-12-22 | 广东省梅州市磁性材料厂 | Magnetic particle and its manufacturing method |
| CN1790559A (en) * | 2005-12-21 | 2006-06-21 | 广州市邦德电子科技有限公司 | Magnetic particle and method for manufacturing same |
| CN101921475A (en) * | 2010-09-07 | 2010-12-22 | 厦门建霖工业有限公司 | Metal-like engineering plastic composite material and preparation method thereof |
| CN102408703A (en) * | 2011-04-26 | 2012-04-11 | 深圳市科聚新材料有限公司 | Ferrite/polyamide composite material and preparation method as well as application thereof |
| CN102352101A (en) * | 2011-06-08 | 2012-02-15 | 深圳市科聚新材料有限公司 | Plastic magnetic conductive material and preparation method thereof |
| CN102321363A (en) * | 2011-09-16 | 2012-01-18 | 厦门建霖工业有限公司 | Ceramic-imitated plastic composite material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879362A (en) * | 2014-03-27 | 2014-06-25 | 苏州益群模具有限公司 | Automotive interior trim part |
| CN105440673A (en) * | 2015-12-23 | 2016-03-30 | 江苏金发科技新材料有限公司 | Polyamide composite material and preparation method thereof |
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