CN102146213B - High magnetic conduction additive beneficial for environment protection and recycling and preparation method thereof - Google Patents
High magnetic conduction additive beneficial for environment protection and recycling and preparation method thereof Download PDFInfo
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- CN102146213B CN102146213B CN 201010192298 CN201010192298A CN102146213B CN 102146213 B CN102146213 B CN 102146213B CN 201010192298 CN201010192298 CN 201010192298 CN 201010192298 A CN201010192298 A CN 201010192298A CN 102146213 B CN102146213 B CN 102146213B
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Abstract
The invention relates to a high magnetic conductive additive beneficial for environment protection and recycling and belongs to the technical field of environment protection. The high magnetic conductive additive is added into a plastic product and is a particle with soft magnetic property. The partical size of the particle is in the range of more than or equal to 1mum and less than or equal to 50mum. The magnetic conductivity of the product is over 30,000 Hunters per meter. The high magnetic conductive additive has fine granularity and can be conveniently dispersed and attached into few plastic particles so as to better disperse few plastic particles with magnetic particles into a great amount of plastic particles, or can be directly added into plastic products. The high magnetic conductive additive uses the following products containing a plastic bag, a convenient meal box, a small plastic toy, a pen, a small plastic part, a plastic film and the like. Due to the soft magnetic property and high magnetic conductivity of the high magnetic conductive additive, an electromagnet or a high magnetic energy product strong magnet can be used as a separation tool so as to recover and separate the white pollutants which are originally difficult to be separated. The high magnetic conductive additive is the key technology which changes the existing processing mode.
Description
Technical field
The present invention relates to a kind of high magnetic conductive additive and preparation method, belong to environmental technology field.
Background technology
Plastics use in daily life is more and more, reclaims difficulty, and hard degradation, so be called as white pollution.Invented a kind of degradable plastics abroad, can realize automatic degraded, environment has not been produced pollution.But this degradable plastics range of application is wide not, is mainly used in plastics film (agriculture, medical, food product pack), degraded foam screen, plastics bag and disposable snack box.Its production cost is slightly high than common plastics, and intensity, tension force all is lower than common plastics, so its popularization has been subject to certain restriction.
China has all carried out the domestic refuse bagging in each big city, and the rubbish after packed is carried out landfill or burning electricity generation, neitherly is beneficial to environmental protection.To the rubbish way that to carry out automatic Separation and Recovery utilization be a kind of comparatively environmental protection, but because some are difficult for the existence of isolate (such as plastics), the refuse reclamation means of automatization faster are difficult for realizing, have seriously limited applying of Waste sorting recycle.For this problem, the applicant has invented a kind of high magnetic conductive additive that is applied to plastics through long-term research and test, good solution this problem.
Summary of the invention
Technical problem to be solved by this invention is: overcome the deficiency that difficulty is reclaimed in existing plastics classification, a kind of high magnetic conductive additive that usefulness is reclaimed in environmental protection that is beneficial to is provided, solved plastics and be difficult for the difficult problem that classification is reclaimed.
In order to solve above technical problem, a kind of high magnetic conductive additive that usefulness is reclaimed in environmental protection that is beneficial to of the present invention makes an addition to plastics, and it is characterized in that: be a kind of particle with soft magnetic property, the particle size range of this particle is [1 μ m, 50 μ m].
According to actual needs, the particle size range of particle can suitably be adjusted, and for plastics film, plastics bag, the particle size range of described particle is [1 μ m, 2 μ m]; Or the particle size range of particle is [1.2 μ m, 1.8 μ m].For plastic component, the particle size range of particle can be [1 μ m, 10 μ m]; Even [1 μ m, 50 μ m].
Further described high magnetic conductive additive, the particle of described soft magnetic property is the ferrite soft magnetic particle.
In addition, in the described high magnetic conductive additive, described particle can also be to be the reduced iron particle, and the reduced iron SiC p surface plating has anti-oxidation lacquer.
Its permeability of this magnetic conduction particle is at 30000 henries/more than the rice.
The present invention also provides be beneficial to the method that the high magnetic conductive additive of usefulness is reclaimed in environmental protection a kind of the preparation, comprises the steps:
The first step, the ferric oxide wet-milling is refine to about 1 micron of median size;
Second step, with under 1000 eye mesh screens lining 20 mesh sieves carry out pressure filtration, drying is filtered to get thing, and is crushed to below 3 microns;
The 3rd step, the ferric oxide particles after the drying and crushing enter and reduce sintering in the reduction furnace;
The 4th step, reduced iron is immersed in the anti-oxidation lacquer solution, reaches about the 1-2 micron grinding to particle diameter under the oxygen barrier environment, slow down stirring velocity, utilize vortex principle to heat to tiny iron powder, make lacquer be solidificated in particle surface.
The 5th goes on foot, leaches the reduced iron particle behind the plating lacquer, is drying to obtain.
In addition, the present invention is claimed a kind of plastics of being convenient to classify and reclaiming also, and it is 0.1%～5.0% high magnetic conductive additive involved in the present invention that these goods contain mass percent.
The permeability of product of the present invention in 30000 Hunters/more than the rice, and granularity is thinner, can disperse comparatively easily to attach in a small amount of plastic grain, and then the plastic pellet that will be stained with on a small quantity the magnetic particle better is distributed in large quantities of plastic pellets; Perhaps be added directly in the plastics.Operable product comprises: plastics bag, convenience mess tin, little plastic toy, pen, small plastic part, plastic film etc.Because it has soft magnetic property, and permeability is high, therefore can use electromagnet or with the kicker magnet of high energy product as separating tool, with this type of not segregative white pollution thing originally, is reclaimed separation, one-tenth for a change has the gordian technique of processing mode now.
After implementing the present invention, trash processing way can adopt following steps: smash plastic packaging bag; Hook goes out the chemical fibre waste materials such as cloth clothes; Adopt magnetic separation to separate, but the material of reuse is reclaimed; Remaining thing does to adopt buoyancy to separate, and upward be the fertilizer raw material, under enter building trade for the landfill materials.As seen, behind utilization the present invention, the proud solution of the difficult problem of refuse classification, the waste reclaimation rate is able to height, has huge social value and economic worth.
Because the fusing point of soft magnetic granules is far above the fusing point of plastics, therefore the plastics after reclaiming are through again utilizing, and the characteristic of the high magnetic conductive additive that it contains does not change, and utilizes the plastics of recycled plastic manufacturing still to keep soft magnetic property, can continue to recycle, very convenient.Manufacturing contains the plastics of this high magnetic conductive additive, need not to change the manufacturing process of existing plastics, and almost not increase of cost, and the social economic value that obtains is huge really.After estimating to release, will be subject to people's popular welcome, have good market outlook.
Embodiment
Below in conjunction with example the present invention is described in further detail.But the invention is not restricted to given example.
The present invention is a kind of high magnetic conductive additive that usefulness is reclaimed in environmental protection that is beneficial to, and makes an addition to plastics, and it is a kind of particle with soft magnetic property, and the particle size range of this particle is [1 μ m, 2 μ m].In this example, the soft magnetic property particle is selected the reduced iron particle, and its surface-coated has anti-oxidation lacquer coating, and its permeability is at 30000 henries/more than the rice.In addition, the soft magnetic property particle also can be selected the ferrite soft magnetic particle, because the Ferrite Material performance is relatively stable, therefore need not to apply antioxidation coating.
The magneticsubstance of equal in quality, its granularity is different, and suction is not identical yet.It below is the relevant simultaneous test that the applicant does.
(unit: gram, a gram suction is equivalent to 9.8*10 to the suction of the high magnetic conductive additive particle of the particle diameter that the suction of 10*10 cylindrical magnet is different
-3Ox):
1 micron: 228; 1.2 micron: 230; 1.4 micron: 233; 1.6 micron: 237; 1.8 micron: 240; 2 microns: 242; 3 microns: 257; 4 microns: 279; 5 microns: 311; 6 microns: 356; 7 microns: 416; 8 microns: 513; 9 microns: 598; 10 microns: 667.
Can find out that from contrast experiment's data the larger suction of the particle diameter of additive is larger.
Because additive granules of the present invention need to make an addition in the plastics bag, so its particle diameter can not be too thick, in order to ensure suction, particle diameter can not be too thin, and too thin particle diameter manufacture difficulty is larger.Through applicant's repetition test, particle diameter can meet the demands between 1 micron to 2 microns; And for plastic component, then can use than coarse particles, 1 micron to 10 microns, even 1 micron can be satisfied the demand in 50 micrometer ranges.
The embodiment of the invention also comprises a kind of plastics that are added with high magnetic conductive additive particle, and wherein, high magnetic conductive additive granule content (mass percent) is 0.1%～5.0%.
In the plastics, the additive level height is also influential to suction, and the applicant has also done relevant simultaneous test.
1, dosage: suction 32 grams of 0.05% correspondence;
2, dosage: suction 57 grams of 0.10% correspondence;
3, dosage: suction 90 grams of 0.15% correspondence;
4, dosage: suction 111 grams of 0.20% correspondence
5, dosage: suction 260 grams of 0.50% correspondence;
6, dosage: suction 365 grams of 1.0% correspondence;
7, dosage: suction 543 grams of 2.0% correspondence;
8, dosage: suction 657 grams of 3.0% correspondence;
9, dosage: suction 812 grams of 4.0% correspondence;
10, dosage: suction 989 grams of 5.0% correspondence.
The hard magnetic body magnetic energy product that uses approximately is 25,000,000 high Austria, 30 millimeters of diameters, about 20 millimeters of thickness.
As seen, the content that adds in the plastics is larger, and its suction is also larger.Generally speaking, the minimum needs that should guarantee more than 50 grams, just can satisfy magnetic separation of suction.
The amount of the particle that adds in plastics also has skill, and content is too high, can affect other performances of plastics, and addition is too low can not to guarantee reliable suction again, can't realize magnetic separation.Adding content need to get final product between 0.1% to 5%.And particle diameter is at 1.2 microns to 1.8 microns, and interpolation quality effect between 0.15% to 2% is best.
Embodiments of the invention also provide a kind of method that the high magnetic conductive additive of usefulness is reclaimed in environmental protection for preparing, and especially a kind of reduced iron for preparing is that kernel plating enamelled coating is the method for the soft magnetic granules of antioxidation coating, and it comprises the steps:
The first step, the ferric oxide wet-milling is refine to about 1 micron of median size;
Second step, with under 1000 eye mesh screens lining 20 mesh sieves carry out pressure filtration, drying is filtered to get thing, and is crushed to below 3 microns;
The 3rd step, the ferric oxide particles after the drying and crushing enter and reduce sintering in the reduction furnace;
The 4th step, reduced iron is immersed in the anti-oxidation lacquer solution, reaches about the 1-2 micron grinding to particle diameter under the oxygen barrier environment, slow down stirring velocity, utilize vortex principle to heat to tiny iron powder, make lacquer be solidificated in particle surface.
The 5th goes on foot, leaches the reduced iron particle behind the plating lacquer, is drying to obtain.
Because the reduced iron particle is thinner, therefore easily oxidation in air need to plate lacquer, to guarantee its soft magnetic property under the oxygen barrier environment.
Anti-oxidation lacquer among the present invention can be selected following several:
1: polish (varnish);
2: liquid epoxy;
3: polyimide resin;
4: ultra-thin Parylene.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (8)
1. one kind is beneficial to the high magnetic conductive additive that usefulness is reclaimed in environmental protection, makes an addition to plastics, and it is characterized in that: be a kind of particle with soft magnetic property, the particle size range of this particle is [1 μ m, 10 μ m], and permeability is at 30000 henries/more than the rice.
2. describedly according to claim 1 be beneficial to the high magnetic conductive additive that usefulness is reclaimed in environmental protection, it is characterized in that: the particle size range of described particle is [1 μ m, 2 μ m].
3. describedly according to claim 2 be beneficial to the high magnetic conductive additive that usefulness is reclaimed in environmental protection, it is characterized in that: the particle size range of described particle is [1.2 μ m, 1.8 μ m].
4. each describedly is beneficial to high magnetic conductive additive that usefulness is reclaimed in environmental protection according to claim 1-3, and it is characterized in that: the particle of described soft magnetic property is the ferrite soft magnetic particle.
5. each describedly is beneficial to high magnetic conductive additive that usefulness is reclaimed in environmental protection according to claim 1-3, and it is characterized in that: described particle is the reduced iron particle, and the reduced iron SiC p surface plating has anti-oxidation lacquer.
6. one kind prepares the described method that is beneficial to the high magnetic conductive additive of environmental protection recovery usefulness of claim 5, comprises the steps:
The first step, the ferric oxide wet-milling is refine to about 1 micron of median size;
Second step, with under 1000 eye mesh screens lining 20 mesh sieves carry out pressure filtration, drying is filtered to get thing, and is crushed to below 3 microns;
The 3rd step, the ferric oxide particles after the drying and crushing enter and reduce sintering in the reduction furnace;
The 4th step, reduced iron is immersed in the anti-oxidation lacquer solution, reaches about the 1-2 micron grinding to particle diameter under the oxygen barrier environment, slow down stirring velocity, utilize vortex principle to heat to tiny iron powder, make lacquer be solidificated in particle surface;
The 5th goes on foot, leaches the reduced iron particle behind the plating lacquer, is drying to obtain.
7. plastics of being convenient to classify and reclaiming is characterized in that containing mass percent and are each described high magnetic conductive additive of claim 1-5 of 0.1%～5.0%.
8. plastics of being convenient to classify and reclaiming according to claim 7 is characterized in that: contain mass percent and be that 0.15% to 2% claim 2 is described is beneficial to the high magnetic conductive additive that usefulness is reclaimed in environmental protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192298 CN102146213B (en) | 2010-05-21 | 2010-05-21 | High magnetic conduction additive beneficial for environment protection and recycling and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010192298 CN102146213B (en) | 2010-05-21 | 2010-05-21 | High magnetic conduction additive beneficial for environment protection and recycling and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102146213A CN102146213A (en) | 2011-08-10 |
| CN102146213B true CN102146213B (en) | 2013-03-20 |
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| CN116333699B (en) * | 2023-03-16 | 2024-03-29 | 中南大学 | Well filling material for in-situ leaching uranium extraction well and application method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204666A (en) * | 1997-06-12 | 1999-01-13 | 通用电气公司 | Low gloss thermoplastic resin composition |
| CN1330374A (en) * | 2000-06-30 | 2002-01-09 | Tdk股份有限公司 | Powder for dust core and dust core |
| CN1422942A (en) * | 2001-11-26 | 2003-06-11 | 邱玲 | New-type multifunctional lubricating grease and preparation method thereof |
| CN1692089A (en) * | 2003-01-10 | 2005-11-02 | Tdk株式会社 | Ferrite material and method of manufacturing the same |
| CN101090005A (en) * | 2006-06-14 | 2007-12-19 | 株式会社神户制钢所 | Resin coated metal sheet with excellent electromagnetic wave shielding performance |
-
2010
- 2010-05-21 CN CN 201010192298 patent/CN102146213B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204666A (en) * | 1997-06-12 | 1999-01-13 | 通用电气公司 | Low gloss thermoplastic resin composition |
| CN1330374A (en) * | 2000-06-30 | 2002-01-09 | Tdk股份有限公司 | Powder for dust core and dust core |
| CN1422942A (en) * | 2001-11-26 | 2003-06-11 | 邱玲 | New-type multifunctional lubricating grease and preparation method thereof |
| CN1692089A (en) * | 2003-01-10 | 2005-11-02 | Tdk株式会社 | Ferrite material and method of manufacturing the same |
| CN101090005A (en) * | 2006-06-14 | 2007-12-19 | 株式会社神户制钢所 | Resin coated metal sheet with excellent electromagnetic wave shielding performance |
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| CN102146213A (en) | 2011-08-10 |
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Free format text: FORMER OWNER: XIE YONGQIU Effective date: 20150413 Owner name: JIANGSU GENGGU STEEL STRUCTURE ENGINEERING CO., LT Free format text: FORMER OWNER: ZHANG JIA GANG YILI ELECTRONIC PRODUCE CO., LTD. Effective date: 20150413 |
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Effective date of registration: 20150413 Address after: 224500, Yancheng City Binhai County, Jiangsu province Huai town private Pioneer Park Patentee after: Jiangsu Long Tie Steel Structure Engineering Co., Ltd. Address before: Tianzhuang village Fenghuang town Zhangjiagang city Jiangsu province 215600 Patentee before: Zhangjiagang Yili Electronic Manufacturing Co., Ltd. Patentee before: Xie Yongqiu |
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Granted publication date: 20130320 Termination date: 20160521 |