CN102070914B - Inorganic particle-coated plastic granules and preparation method and application thereof - Google Patents
Inorganic particle-coated plastic granules and preparation method and application thereof Download PDFInfo
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- CN102070914B CN102070914B CN201010552335.6A CN201010552335A CN102070914B CN 102070914 B CN102070914 B CN 102070914B CN 201010552335 A CN201010552335 A CN 201010552335A CN 102070914 B CN102070914 B CN 102070914B
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Abstract
The invention belongs to the technical field of polymer engineering materials, and relates to inorganic particle-coated plastic granules, and a preparation method, production equipment and application thereof. The inorganic particle-coated plastic granules are characterized by comprising the following components in percentage by mass: 0.5 to 50 percent of inorganic particles, and 50 to 99.5 percent of plastic granules; the inorganic particles coat the plastic granules; the average grain diameter of the inorganic particles is 1nm to 100mu m; and the average grain diameter of the plastic granules is 0.1 to 10mm. The inorganic particle-coated plastic granules are directly added into an injection molding machine for injection molding to be prepared into modified engineering plastics.
Description
[technical field]
The invention belongs to macromolecule engineering field of material technology, relate to coated plastic pellet of a kind of mineral particulates and preparation method thereof, production unit and purposes.
[background technology]
Engineering plastics refer to that a class as structured material, can bear mechanical stress in wide temperature range, the high performance macromolecular material used in comparatively harsh chemical physics environment.Due to the character that it is special, engineering plastics are widely used in multiple high performance application.Engineering plastics comprise acetal, polycarbonate (PC), polyphenylene sulfide, polysulfones, the polyphenylene oxide of modification, polyimide, polymeric amide (PA), polybutylene terephthalate (PBT), acrylonitrile-butadiene-phenylethylene multipolymer (ABS), liquid crystalline polymers (LCP), ethylene-ethyl acetate copolymer (EVA), and for other plastics of engineering purpose.
Engineering plastics have high strength, high mechanical modulus, low creep, wear-resistingly by force undermine resistance to fatigue, chemical proofing simultaneously, electrically anti-, flame resistivity, weathering resistance, the advantages such as dimensional stability is good, so it has greatly the trend of substituted metal, and engineering plastics compare metal light, automobile can be widely used in, electronic product casing and component of machine field, although engineering plastics are eager to excel compared to the rigidity of common plastic cement, but compared to metal, its rigidity still shows slightly not enough, so in order to continue the rigidity strengthening engineering plastics, just need to carry out modification to engineering plastics, make it have good stiffness and the toughness of metal or metal alloy.
The inorganics that hardness ratio plastics are high is added in engineering plastics, as talcum powder, calcium carbonate, mica, polynite, magnesiumcarbonate etc., just can the significantly hardness of reinforced plastics and intensity; The electroconductibility that carbon black, carbon pipe, carbon dust etc. can significantly improve engineering plastics is added in engineering plastics; The ageing-resistant ability that titanium oxide can improve engineering plastics is added in engineering plastics.These inorganicss join in plastic matrix with the form of particulate usually, put into extruding pelletization in forcing machine with plastic matrix after mixing, and form the new engineering plastics master batch with certain premium properties.Join in engineering plastics in order to these inorganicss can be made and go not affect plastics more original machinery and physicalies, also can be formed with plastic matrix simultaneously and act synergistically, so the size of these inorganicss is accomplished very little as far as possible, reach micron order even nano level.Like this when accounting for identical weight percent, the inorganics that particulate is less, its distribution in plastic matrix is more even.
But because plastic matrix is macromolecular material, be difficult to be worked into very little size, be mostly grade or centimetre-sized.So when micron order or nano level mineral particulates are put into extruding pelletization in the plastic pellet of grade or centimetre-sized, that to be difficult to that mineral particulates is distributed in plastic matrix well-proportioned, mineral particulates pockety not only reduces effect of inorganics, also can damage other mechanical propertys and the physicals of engineering plastics, it wastes production cost greatly simultaneously simultaneously.
[summary of the invention]
In order to solve above-mentioned technical problem, the present invention proposes a kind of method that new mineral particulates mixes with plastic pellet, being coated on outside plastic pellet by mineral particulates.So in order to solve above-mentioned technical problem, the invention provides coated plastic pellet of a kind of mineral particulates and its production and use.
Concrete technical scheme of the present invention is as follows:
The invention provides the plastic pellet that a kind of mineral particulates is coated, it is characterized in that, containing following ingredients by mass percentage in the plastic pellet that this mineral particulates is coated:
The mineral particulates of 0.5% ~ 50%, the plastic pellet of 50% ~ 99.5%; Described mineral particulates is coated on outside described plastic pellet, and the median size of described mineral particulates is 1nm ~ 100 μm, and the median size of described plastic pellet is 0.1mm ~ 10mm.
Preferably, the mass percent of each component in the plastic pellet that described mineral particulates is coated is:
Mineral particulates: 3% ~ 15%;
Plastic pellet: 85% ~ 97%.
Described mineral particulates comprise in ore powder, carbon dust, oxide powder, metal-powder one or more.
Described ore powder comprise in talcum powder, calcium carbonate, mica, polynite, magnesiumcarbonate powder one or more.
Described oxide powder comprise in titanium oxide, silicon oxide, zinc oxide one or more.
Described plastics comprise in PA, PC, PET, PP, ABS one or more.
The present invention also provides a kind of method preparing the coated plastic pellet of mineral particulates as above, and it is characterized in that, the method comprises the steps:
(1) heat the mineral particulates that median size is 1nm ~ 100 μm, make the temperature of mineral particulates maintain plastic pellet fusing point ± 5 DEG C, the median size of described plastic pellet is 0.1mm ~ 10mm;
(2) heating mineral particulates limit in limit is stirred, and drops into a certain amount of plastic pellet, makes mineral particulates be in excessive state;
(3) above-mentioned temperature is kept to continue stirring 1 ~ 10 minute, the mix products of obtained mineral particulates and the coated plastic pellet of mineral particulates;
(4) send and cool above-mentioned product;
(5) screen out not coated mineral particulates, discharging obtains the coated plastic pellet of mineral particulates.
Stirring means described in described step (3) is: drive the coated plastic pellet of described mineral particulates, plastics and mineral particulates to roll from bottom to top by stirrer;
Method of sending in described step (4) is reversed by stirrer, drives described mineral particulates and the coated plastic pellet of mineral particulates to carry from top to down.
In described step (4), the method for cooling of product comprises naturally cooling and adopts cooling jacket to force cooling.
Described mineral particulates comprise in ore powder, carbon dust, oxide powder, metal-powder one or more.
Described plastics comprise in PA, PC, PET, PP, ABS one or more.
The purposes of the plastic pellet that the present invention provides again a kind of mineral particulates described above coated, is characterized in that, the coated plastic pellet of this mineral particulates is for the preparation of modified engineered plastic.
Plastic pellet coated for described mineral particulates is directly joined injection moulding machine injection moulding.
After being mixed with a small amount of auxiliary agent by plastic pellet coated for described mineral particulates, join injection moulding in injection moulding machine.
After being mixed with plastics and a small amount of auxiliary agent by plastic pellet coated for described mineral particulates, join injection moulding in injection moulding machine.
The technique effect that the present invention is useful is:
Because nano level or micron-sized mineral particulates are coated on the plastic pellet of grade or centimetre-sized equably, avoid mineral particulates agglomeration, and the coated plastic pellet of mineral particulates is easy to mix with other plastic pellets or auxiliary agent, so by mineral particulates is coated on outside plastic pellet, can avoids mineral particulates directly to put in the plastic pellet of melting and carry out mineral particulates in the engineering plastics of extruding pelletization formation and plastic pellet disperses uneven problem.
By plastic pellet coated for mineral particulates is directly used in injection moulding, can saves extruding and pelletizing process, save production cost, the technique be coated on by mineral particulates outside plastic pellet of the present invention is simple, with low cost simultaneously.
[embodiment]
The present invention relates to coated plastic pellet of a kind of mineral particulates and preparation method thereof, production unit and purposes.By mineral particulates is coated on outside plastic pellet, and plastic pellet coated for this mineral particulates is used for injection moulding, and the mineral particulates solved in plastic master batch mineral particulates being put into extruding pelletization formation in plastic pellet disperses uneven problem.
Described inorganics comprise in ore powder, carbon dust, CNT (carbon nano-tube), oxide powder, metal-powder one or more.Described plastics comprise in PA, PC, PET, PP, ABS one or more.
Described ore powder comprise in talcum powder, calcium carbonate, mica, polynite, magnesiumcarbonate powder one or more.
Described oxide powder comprise in titanium oxide, silicon oxide, zinc oxide one or more.
Below in conjunction with specific embodiment, the invention will be further elaborated:
Embodiment 1
The PA plastic pellet that CNT (carbon nano-tube) is coated, by weight percentage, comprising: the CNT (carbon nano-tube) of 0.5% and the PA plastics of 99.5%, and the mean diameter of described CNT (carbon nano-tube) is 18nm, and mean length is 100nm, and the median size of described plastic pellet is 0.1mm.Described CNT (carbon nano-tube) is coated on outside described PA plastic pellet.
The preparation method of the PA plastic pellet that this CNT (carbon nano-tube) is coated is as follows:
(1) fusing point measuring PA is 220 DEG C
(2) take 5 parts of above-mentioned CNT (carbon nano-tube), put in material barrel and heat, the temperature of CNT (carbon nano-tube) is maintained about 220 DEG C (errors be no more than ± 5 DEG C);
(3) limit heating nano-sized carbon tube edge stirs, and drops into the PA plastic pellet of 99.5 parts;
(4) keep above-mentioned temperature to continue stirring 1 minute, the mixture of the PA plastic pellet that obtained CNT (carbon nano-tube) is coated with CNT (carbon nano-tube), during stirring, rolled from bottom to top by stirrer drive mixture;
(5) stirrer is reversed, mixture is rolled from top to down, thus sends mixture;
(6) cooling jacket is adopted to force cooling said mixture;
(5) screen out not coated CNT (carbon nano-tube), discharging obtains the coated PA plastic pellet of CNT (carbon nano-tube).
The PA plastic pellet that the CNT (carbon nano-tube) prepared is coated, by weight, comprises the CNT (carbon nano-tube) of 0.5 part and the PA plastics of 99.5 parts.
The coated PA plastic pellet of the CNT (carbon nano-tube) prepared is for the preparation of conductive engineering plastics, and the preparation method of this conductive engineering plastics is as follows:
PA plastic pellet coated for the above-mentioned CNT (carbon nano-tube) prepared directly is joined melting injection moulding in injection moulding machine.
Embodiment 2
The PET particle that copper powder is coated, by weight percentage, comprising: the copper powder of 50% and the PET of 50%, and the median size of described copper powder is 40 μm, and the median size of described PET particle is 10mm.Described copper powder is coated on outside described PET particle.
The preparation method of the PET particle that this copper powder is coated is as follows:
(1) fusing point measuring PET is 240 DEG C
(2) take 500 parts of above-mentioned copper powders, put in material barrel and heat, the temperature of copper powder is maintained about 240 DEG C (errors be no more than ± 5 DEG C);
(3) heating copper powder limit in limit is stirred, and drops into the PET particle of 50 parts;
(4) keep above-mentioned temperature to continue stirring 10 minutes, the mixture of the PET particle that obtained copper powder is coated with copper powder, during stirring, rolled from bottom to top by stirrer drive mixture;
(5) stirrer is reversed, mixture is rolled from top to down, thus sends mixture;
(6) mode of naturally cooling is adopted to cool said mixture;
(5) screen out not coated copper powder, discharging obtains the coated PET particle of copper powder.
The PET particle that the copper powder prepared is coated, by weight, comprises the copper powder of 50 parts and the PET of 50 parts.
The coated PET particle of the copper powder prepared is for the preparation of conductive engineering plastics, and the preparation method of this conductive engineering plastics is as follows:
By PET particle coated for the above-mentioned copper powder prepared and a certain amount of PET mix particles, after stirring, put into melting injection moulding in injection moulding machine.
Embodiment 3
The PP plastic pellet that nano-titanium oxide is coated, by weight percentage, comprising: the nano-titanium oxide of 3% and the PP plastics of 97%, and the mean diameter of described nano-titanium oxide is 100nm, and the median size of described PP plastic pellet is 5mm.Described nano-titanium oxide is coated on outside described PP plastic pellet.
The preparation method of the PP plastic pellet that this nano-titanium oxide is coated is as follows:
(1) fusing point measuring PP is 167 DEG C
(2) take 30 parts of above-mentioned nano-titanium oxides, put in material barrel and heat, the temperature of nano-titanium oxide is maintained about 167 DEG C (errors be no more than ± 5 DEG C);
(3) heating nano-titanium oxide limit in limit is stirred, and drops into the PP plastic pellet of 97 parts;
(4) keep above-mentioned temperature to continue stirring 5 minutes, the mixture of the PP plastic pellet that obtained nano-titanium oxide is coated with nano-titanium oxide, during stirring, rolled from bottom to top by stirrer drive mixture;
(5) stirrer is reversed, mixture is rolled from top to down, thus sends mixture;
(6) cooling jacket is adopted to force cooling said mixture;
(5) screen out not coated nano-titanium oxide, discharging obtains the coated PP plastic pellet of nano-titanium oxide.
The PP plastic pellet that the nano-titanium oxide prepared is coated, by weight, comprises the nano-titanium oxide of 3 parts and the PP plastics of 97 parts.
The coated PP plastic pellet of the nano-titanium oxide prepared is for the preparation of ageing-resistant engineering plastics, and the preparation method of this project plastics is as follows:
PP plastic pellet coated for the above-mentioned nano-titanium oxide prepared is mixed with a certain amount of PP plastic pellet, dispersing auxiliary, coupling agent, then joins melting injection moulding in injection moulding machine.
Embodiment 4
The PC/ABS plastic pellet that magnesiumcarbonate powder is coated, by weight percentage, comprising: the magnesiumcarbonate powder of 15% and the PC/ABS plastics of 85%, and the median size of described magnesiumcarbonate powder is 20 μm, and the median size of described PC/ABS plastic pellet is 1mm.Described magnesiumcarbonate powder is coated on outside described PC/ABS plastic pellet.
The preparation method of the PC/ABS plastic pellet that this magnesiumcarbonate powder is coated is as follows:
(1) fusing point measuring PC/ABS is 260 DEG C
(2) take 150 parts of above-mentioned magnesiumcarbonate powders, put in material barrel and heat, the temperature of magnesiumcarbonate powder is maintained about 260 DEG C (errors be no more than ± 5 DEG C);
(3) heating magnesiumcarbonate powder limit in limit is stirred, and drops into the PC/ABS plastic pellet of 85 parts;
(4) keep above-mentioned temperature to continue stirring 8 minutes, the mixture of the PC/ABS plastic pellet that obtained magnesiumcarbonate powder is coated with magnesiumcarbonate powder, during stirring, rolled from bottom to top by stirrer drive mixture;
(5) stirrer is reversed, mixture is rolled from top to down, thus sends mixture;
(6) cooling jacket is adopted to force cooling said mixture;
(5) screen out not coated magnesiumcarbonate powder, discharging obtains the coated PC/ABS plastic pellet of CNT (carbon nano-tube).
The PC/ABS plastic pellet that the magnesiumcarbonate powder prepared is coated, by weight, comprises the magnesiumcarbonate powder of 15 parts and the PC/ABS plastics of 85 parts.
The coated PC/ABS plastic pellet of the magnesiumcarbonate powder prepared is for the preparation of fire-retardant fireproof engineering plastics, and the preparation method of these fire-retardant fireproof engineering plastics is as follows:
PC/ABS plastic pellet coated for the above-mentioned magnesiumcarbonate powder prepared directly is joined melting injection moulding in injection moulding machine.
It should be noted that, those skilled in the art very simply can also expect other embodiment for the above embodiments, and by simple many experiments, just can obtain some and improve.But no matter how to improve, as long as these technical schemes are in concept of the present invention, the technical scheme of this patent should be equal to, belong to the protection domain of this patent.
Claims (8)
1. the plastic pellet that mineral particulates is coated, is characterized in that, containing following ingredients by mass percentage in the plastic pellet that this mineral particulates is coated:
The mineral particulates of 0.5% ~ 50%, the plastic pellet of 50% ~ 99.5%; Described mineral particulates is coated on outside described plastic pellet, and the median size of described mineral particulates is 1nm ~ 100 μm, and the median size of described plastic pellet is 0.1mm ~ 10mm;
Described mineral particulates comprise in ore powder, carbon dust, oxide powder, metal-powder one or more;
Described oxide powder comprise in titanium oxide, silicon oxide, zinc oxide one or more.
2. the plastic pellet that mineral particulates according to claim 1 is coated, is characterized in that, preferably, the mass percent of each component in the plastic pellet that described mineral particulates is coated is:
Mineral particulates: 3% ~ 15%;
Plastic pellet: 85% ~ 97%.
3. prepare a method for the coated plastic pellet of mineral particulates as claimed in claim 1, it is characterized in that, the method comprises the steps:
(1) heat the mineral particulates that median size is 1nm ~ 100 μm, make the temperature of mineral particulates maintain plastic pellet fusing point ± 5 DEG C, the median size of described plastic pellet is 0.1mm ~ 10mm;
(2) heating mineral particulates limit in limit is stirred, and drops into a certain amount of plastic pellet, makes mineral particulates be in excessive state;
(3) above-mentioned temperature is kept to continue stirring 1 ~ 10 minute, the mix products of obtained mineral particulates and the coated plastic pellet of mineral particulates;
(4) send and cool above-mentioned product;
(5) screen out not coated mineral particulates, discharging obtains the coated plastic pellet of mineral particulates;
Described mineral particulates comprise in ore powder, carbon dust, oxide powder, metal-powder one or more;
Described oxide powder comprise in titanium oxide, silicon oxide, zinc oxide one or more.
4. the method preparing inorganic matter fine particle-coated plastic particles according to claim 3, it is characterized in that, the stirring means described in described step (3) is: drive the coated plastic pellet of described mineral particulates, plastics and mineral particulates to roll from bottom to top by stirrer.
5. the method preparing inorganic matter fine particle-coated plastic particles according to claim 4, it is characterized in that, method of sending in described step (4) is reversed by stirrer, drives described mineral particulates and the coated plastic pellet of mineral particulates to carry from top to down.
6. the method preparing inorganic matter fine particle-coated plastic particles according to claim 3 or 4 or 5, is characterized in that, in described step (4), the method for cooling of product comprises naturally cooling and adopts cooling jacket to force cooling.
7. a purposes for the plastic pellet that mineral particulates is coated as claimed in claim 1, is characterized in that, the coated plastic pellet of this mineral particulates is for the preparation of modified engineered plastic.
8. the purposes of the plastic pellet that mineral particulates according to claim 7 is coated, is characterized in that, plastic pellet coated for described mineral particulates is directly joined injection moulding machine injection moulding.
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| CN201010552335.6A CN102070914B (en) | 2010-11-19 | 2010-11-19 | Inorganic particle-coated plastic granules and preparation method and application thereof |
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| CN201010552335.6A CN102070914B (en) | 2010-11-19 | 2010-11-19 | Inorganic particle-coated plastic granules and preparation method and application thereof |
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| CN102070914B true CN102070914B (en) | 2015-07-15 |
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| CN103785822B (en) * | 2012-10-26 | 2016-12-21 | 深圳门德科技有限公司 | A kind of micron order composite and preparation method thereof |
| CN105419301A (en) * | 2014-09-11 | 2016-03-23 | 北京廊桥材料技术有限公司 | Composite heat conduction filler and manufacturing method thereof |
| CN113234330A (en) * | 2021-05-05 | 2021-08-10 | 苏州金鼎塑胶工业有限公司 | Plastic particle coated by inorganic matter particles and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803898A (en) * | 2006-01-12 | 2006-07-19 | 贵州大学 | Nanometer antibacterial plastic |
| CN101684200A (en) * | 2008-09-25 | 2010-03-31 | 比亚迪股份有限公司 | Plastic blending material, preparation method thereof and surface metalized plastic part |
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| CN100344688C (en) * | 2005-01-07 | 2007-10-24 | 四川大学 | High performance polymer composite material capable of forming inorganic nano-particle network and its preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803898A (en) * | 2006-01-12 | 2006-07-19 | 贵州大学 | Nanometer antibacterial plastic |
| CN101684200A (en) * | 2008-09-25 | 2010-03-31 | 比亚迪股份有限公司 | Plastic blending material, preparation method thereof and surface metalized plastic part |
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Address after: 518104 Guangdong city of Shenzhen province Baoan District Tantou town of Songgang West Industrial Park building A16 Applicant after: SHENZHEN HALCYON ENGINEERING PLASTICS CO., LTD. Applicant after: Huazhong Tech Univ Inst., Shenzhen Address before: 518104 Guangdong city of Shenzhen province Baoan District Tantou town of Songgang West Industrial Park building A16 Applicant before: Shenzhen Halcyon Engineering Plastics Co., Ltd. Applicant before: Huazhong Tech Univ Inst., Shenzhen |
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