CN101866734A - Polyvinyl plastic bonding type magnetic material and manufacturing method thereof - Google Patents
Polyvinyl plastic bonding type magnetic material and manufacturing method thereof Download PDFInfo
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- CN101866734A CN101866734A CN200910134980A CN200910134980A CN101866734A CN 101866734 A CN101866734 A CN 101866734A CN 200910134980 A CN200910134980 A CN 200910134980A CN 200910134980 A CN200910134980 A CN 200910134980A CN 101866734 A CN101866734 A CN 101866734A
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Abstract
The invention discloses a polyvinyl plastic bonding type magnetic material, which comprises the following components: 80-95 parts by weight of magnetic powder which is selected from at least one of ferrite magnetic powder and metal magnetic powder, 3-19 parts by weight of polyethylene plastic, 0.1-3 parts by weight of coupling agent and 0.2-3 parts by weight of plasticizer. The invention also discloses a manufacturing method of the polyvinyl plastic bonding type magnetic material, which comprises the steps of mixing, refining, smashing, disengaging, rolling and molding the magnetic powder, the coupling agent and the plasticizer according to the weight ratio. The product provided by the invention is non-halogenated, so the product is environmental-friendly, and the magnetic property of the product is higher than that of a halogenated product. The manufacturing method of the invention has simple process and low cost.
Description
Technical field
The present invention relates to a kind of bonding type magnetic material and manufacture method thereof.More particularly, the present invention relates to a kind of polyvinyl plastic bonding type magnetic material and manufacture method thereof.
Background technology
Traditional rubber-like binding agent, is restricted owing to easily producing the carcinogen bioxin when the waste disposal in the process that is used for making magnetic material as haloflex (CPE), and also all there is similar situation in other halogens.Therefore, the future thrust at the rubber-like binding agent that is used to make magnetic material has proposed non-halogen requirement.
At present, non-halogen have two developing direction, and as binding agent, it two is as binding agent with non-NBR material to the first with acrylonitrile-butadiene rubber (NBR).When adopting acrylonitrile-butadiene rubber to make binding agent, height when though the magnetic property of resulting magnetic product is binding agent than with CPE, but its manufacturing process is difficult to the technology of CPE when being binding agent, thereby causes the production cost height, therefore is restricted as the development of binding agent with NBR.Seeking with non-NBR material as aspect the substitute of CPE material, though someone once proposed with polyethylene (PE) plastics as binding agent, but because the PE plastics are a kind of thermoplastic resins, its temperature processing characteristics does not have CPE steady, be difficult on the technology carry out effectively control, thereby yet there are no now with the magnetic material of vinyon as binding agent.
Summary of the invention
The present inventor by the Combinatorial Optimization to raw material proportioning and process conditions, successfully provides a kind of polyvinyl plastic bonding type magnetic material and manufacture method thereof to having carried out repetition test with the PE plastics as the manufacturing process of binding agent.
The purpose of this invention is to provide a kind of polyvinyl plastic bonding type magnetic material.
Magnetic material provided by the invention is made up of following component: the magnetic of 80-95 weight portion, described magnetic are at least a in ferromagnetic oxide powder, the metal magnetic; The vinyon of 3-19 weight portion; 0.1-3 the coupling agent of weight portion; And the plasticizer of 0.2-3 weight portion.
Preferably, described ferromagnetic oxide powder is selected from least a in strontium ferrite magnetic powder, the barium ferrite magnetic powder; Described metal magnetic is selected from least a in neodymium iron boron, SmCo, the aluminium nickel cobalt.
The preferred hp-ldpe of vinyon of the present invention (being LDPE).The hp-ldpe ratio is low such as low-pressure high-density polyethylene (HDPE) and poly other vinyon fusing points of intermediate density, moulding easy and magnetic parcel amount is big, thereby higher relatively by its magnetic product that makes than the magnetic characteristic of the magnetic product that makes by other vinyons, product surface is polishing relatively more.
In the raw material of magnetic material of the present invention, when magnetic was selected the combination of ferromagnetic oxide powder and metal magnetic, the ratio between ferromagnetic oxide powder and the metal magnetic was 1: 99 to 99: 1.
Coupling agent that uses among the present invention and plasticizer can be coupling agent and plasticizer commonly used in this area, can select any in silane coupler, titanium ester coupling agent, the aluminium ester coupling agent for use as coupling agent; Can select any in phthalic acid salt, epoxies, the compound stearates for use as plasticizer.
Preferably, raw material can be replaced with the reclaimed materials of the arbitrary proportion between the 0%-100%.
Another object of the present invention provides a kind of manufacture method of polyvinyl plastic bonding type magnetic material.
Manufacture method provided by the invention comprises carries out mixed refining, calendering, moulding after magnetic, vinyon, coupling agent, plasticizer mixed by described weight ratio, promptly obtains polyvinyl plastic bonding type magnetic material.
Preferably, the refining mode comprises out refining mode or banburying mode, opens the refining mode and carries out in mill, and the banburying mode is carried out in banbury, and refining temperature is set in 80 ℃-140 ℃, refines 10-45 minute, cools off then 10-90 minute.
Preferably, rolling temperature is 25 ℃-60 ℃.
Wherein moulding is carried out on make-up machine.
Manufacture method provided by the invention comprise carry out mixed refining, fragmentation after magnetic, vinyon, coupling agent, plasticizer mixed by described weight ratio, tell, calendering, moulding, promptly obtain polyvinyl plastic bonding type magnetic material.
Preferably, broken temperature is less than 120 ℃, the pellet via hole diameter after the fragmentation be 2mm-5mm screen cloth so that the particle diameter after sieving less than 5mm.
Preferably, be controlled at least 8 hours to telling step from broken step.
Preferably, particle diameter after the fragmentation is told into the sheet material that thickness is 1mm-3mm less than the pellet of 5mm, the temperature of telling roller is controlled at 25 ℃-60 ℃, tells material temperature and is controlled at 20 ℃-60 ℃ basically.
Product provided by the invention is non-halogen, thereby is eco-friendly environmentally friendly machine.
The magnetic property height of the product of manufacturing when product provided by the invention is binding agent than with CPE.Below table 1 summarized the comparison of the magnetic property of the magnetic material that the magnetic material made as binding agent with the PE plastics and NBR, CPE make as binding agent, wherein magnetic property is with residual magnetic flux density Br, magnetic strength coercivity H b, HCJ Hcj, maximum magnetic energy product (BH) max sign.
Table 1 is by the magnetic property value of the magnetic material of different binding agents manufacturings
From the listed data of last table as can be seen, the magnetic property of the material of making during for binding agent with PE is higher than the magnetic property when being binding agent with CPE, thus can substitute the CPE goods fully at the aspect of performance that embodies magnetic material, even be better than the CPE goods.
In addition, method provided by the invention in refining temperature, broken temperature, tell the temperature of roller, low about 20 ℃ of manufacturing process telling aspects such as material temperature and rolling temperature when being binding agent with CPE at present, and need not sulfuration, thereby reduced energy consumption.
Manufacturing process when method of the present invention is binding agent than with NBR is simple, thereby with low cost.
Embodiment
Each material of using among the embodiment if do not specify, can be buied from the market.
Embodiment 1:
With 85 kilograms strontium ferrite magnetic powders (northern ore deposit 4D magnetic), 12 kilograms LDPE plastics (commercial), add 2 kilograms coupling agent (NDZ-105), 1 kilogram plasticizer (epoxidized soybean oil, commercial) in banbury, refined about 30 minutes, when temperature reaches 130 ℃, cool off after 30 minutes the material temperature and reach and carry out fragmentation, screening when being lower than 120 ℃, until particle diameter less than 5mm.Broken material cooling after 24 hours temperature drop to room temperature and tell, the roller temperature control of telling is at 40 ℃-50 ℃, tell THICKNESS CONTROL about 2mm, after dividing discharging to place 24 hours naturally, carry out precompressed, calendering, the stack temperature control is rolled to 2.1mm thick in finishing machine at 40 ℃-50 ℃ then, surfacing is smooth, last moulding.Resulting magnetic material is cut into 20mm * 10mm * 2.1mm, and three stack its magnetic property of test and are respectively: about Br=2450Gs, about Hcb=2200Oe, about Hcj=2800Oe, about (BH) max=1.45MGOe.
Embodiment 2:
With 80 kilograms barium ferrite magnetic powders, 15 kilograms LDPE plastics, add 0.9 kilogram of coupling agent, 0.5 the plasticizer of kilogram is refined about 30 minutes in mill, the no fecula in surface occurs, open again and be smelt the thick sheet material of 3mm, roll to 2.1mm thickly then in finishing machine, surfacing is smooth, last moulding.Resulting magnetic material is cut into 20mm * 10mm * 2.1mm, and three stack its magnetic property of test, and the result is specially: about Br=2499Gs, about Hcb=2114Oe, about Hcj=2333Oe, about (BH) max=1.527MGOe.
Embodiment 3:
With the NdFeB magnetic powder (MQ powder) of 500 grams, the LDPE plastics of 40 grams, add the coupling agent of 5 grams, the plasticizer of 4 grams is refined about 30 minutes in mill, the no fecula in surface occurs, open again and be smelt the thick sheet material of 3mm, roll to 2.1mm thickly then in finishing machine, surfacing is smooth, last moulding.Resulting magnetic material is cut into 20mm * 10mm * 2.1mm, and three stack its magnetic property of test, and the result is specially: Br=3000Gs is above, Hcb=2000Oe above, Hcj=4000Oe is above, (BH) more than the max=1.5MGOe.
Embodiment 4:
With 90 kilograms barium ferrite magnetic powders, 3 kilograms HDPE plastics, add 0.8 kilogram coupling agent, 0.2 the plasticizer of kilogram and 50% reclaimed materials of aforementioned substances total weight are refined about 30 minutes in banbury, when temperature reaches 130 ℃, cool off after 30 minutes the material temperature and reach and carry out fragmentation, screening when being lower than 120 ℃, until particle diameter less than 5mm.Broken material cooling after 24 hours temperature drop to room temperature and tell, the roller temperature control of telling is at 40 ℃-50 ℃, tell THICKNESS CONTROL about 2mm, after dividing discharging to place 24 hours naturally, carry out precompressed, calendering, the stack temperature control is rolled to 2.1mm thick in finishing machine at 40 ℃-50 ℃ then, surfacing is smooth, last moulding.Resulting magnetic material is cut into 20mm * 10mm * 2.1mm, and three stack its magnetic property of test, and the result is specially: about Br=2350Gs, about Hcb=2100Oe, about Hcj=2400Oe, about (BH) max=1.40MGOe.
Embodiment 5:
With the NdFeB magnetic powder of 900 grams, the strontium ferrite magnetic powder of 30 grams, the LDPE plastics of 80 grams, add the coupling agent of 8 grams, the plasticizer of 8 grams and 50% reclaimed materials of aforementioned substances total weight are refined about 30 minutes in mill, the no fecula in surface occurs, open again and be smelt the thick sheet material of 3mm, roll to 2.1mm thickly then in finishing machine, surfacing is smooth, last moulding.Resulting magnetic material is cut into 20mm * 10mm * 2.1mm, and three stack its magnetic property of test, and the result is specially: Br=3000Gs is above, Hcb=2300Oe above, Hcj=5000Oe is above, (BH) more than the max=1.6MGOe.
Described the present invention above, still, should be appreciated that these preferred embodiments are not to be used to limit protection scope of the present invention by preferred embodiment.On the contrary, any modification of within purport of the present invention and principle, being done, be equal to replacement, improvement etc., all should be included within the protection scope of the present invention that is defined by the following claims.
Claims (10)
1. polyvinyl plastic bonding type magnetic material, it is made up of following component:
The magnetic of 80-95 weight portion, described magnetic are at least a in ferromagnetic oxide powder, the metal magnetic;
The vinyon of 3-19 weight portion;
0.1-3 the coupling agent of weight portion; And
0.2-3 the plasticizer of weight portion.
2. magnetic material according to claim 1, wherein said ferromagnetic oxide powder are selected from least a in strontium ferrite magnetic powder, the barium ferrite magnetic powder; Described metal magnetic is selected from least a in neodymium iron boron, SmCo, the aluminium nickel cobalt.
3. method of making polyvinyl plastic bonding type magnetic material according to claim 1, it comprises and carries out mixed refining, calendering, moulding after magnetic, vinyon, coupling agent, plasticizer mixed by described weight ratio, promptly obtains described polyvinyl plastic bonding type magnetic material.
4. method according to claim 3, wherein in described mixed refining step, the refining mode is out refining mode or banburying mode, refining temperature was refined 10-45 minute at 80 ℃-140 ℃, cooled off then 10-90 minute.
5. method according to claim 3, wherein in described calendering step, rolling temperature is 25 ℃-60 ℃.
6. method according to claim 3, wherein said forming step carries out on make-up machine.
7. method of making polyvinyl plastic bonding type magnetic material according to claim 1, it comprise carry out mixed refining, fragmentation after magnetic, vinyon, coupling agent, plasticizer mixed by described weight ratio, tell, calendering, moulding, promptly obtain described polyvinyl plastic bonding type magnetic material.
8. method according to claim 7, wherein in described broken step, broken temperature is less than 120 ℃, the pellet via hole diameter after the fragmentation be 2mm-5mm screen cloth so that the particle diameter after sieving less than 5mm.
9. method according to claim 7 wherein was controlled at 8 hours to the described step of telling from described broken step at least.
10. method according to claim 7, wherein tell in the step described, particle diameter after the fragmentation is told into the sheet material that thickness is 1mm-3mm less than the pellet of 5mm, and the temperature of telling roller is controlled at 25 ℃-60 ℃, tells material temperature and is controlled at 20 ℃-60 ℃.
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| CN200910134980A CN101866734A (en) | 2009-04-20 | 2009-04-20 | Polyvinyl plastic bonding type magnetic material and manufacturing method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516625A (en) * | 2011-12-03 | 2012-06-27 | 广东聚缘塑料科技有限公司 | Magnetic plastic produced by waste plastic |
| CN102832002A (en) * | 2012-09-13 | 2012-12-19 | 北矿磁材科技股份有限公司 | Environment-friendly halogen-free rare-earth composite magnetic material |
| CN102832005A (en) * | 2012-09-13 | 2012-12-19 | 北矿磁材科技股份有限公司 | Environment-friendly halogen-free ferrite composite magnetic material |
| CN105161243A (en) * | 2015-10-13 | 2015-12-16 | 南通长江电器实业有限公司 | Composite bonded rare earth permanent magnetic material |
| CN105161241A (en) * | 2015-10-13 | 2015-12-16 | 南通长江电器实业有限公司 | High-performance composite bonding rare earth permanent magnet material |
| CN105374543A (en) * | 2015-12-03 | 2016-03-02 | 湖南航天磁电有限责任公司 | Preparation method for bonding NdFeB-ferrite permanent magnet |
| CN106803450A (en) * | 2017-02-21 | 2017-06-06 | 济南大学 | A kind of aluminium-nickel-cobalt magnetic particle and preparation method thereof |
| CN107464648A (en) * | 2017-08-25 | 2017-12-12 | 横店集团东磁股份有限公司 | A kind of rubber magnet and preparation method thereof |
| CN108003428A (en) * | 2017-12-07 | 2018-05-08 | 南通华盛高聚物科技股份有限公司 | A kind of fluorescence magnetisable plastic film, bonding sheet and polybag and application method |
| CN111601530A (en) * | 2017-06-20 | 2020-08-28 | 宝山控股有限责任公司 | Modular magnetically receptive wood and engineered wood surface units and magnetic box systems for covering floors, walls and other surfaces |
| CN111635576A (en) * | 2020-06-24 | 2020-09-08 | 江西伟普科技有限公司 | Preparation method of multiple-color-change magnetic binding material |
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2009
- 2009-04-20 CN CN200910134980A patent/CN101866734A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516625A (en) * | 2011-12-03 | 2012-06-27 | 广东聚缘塑料科技有限公司 | Magnetic plastic produced by waste plastic |
| CN102832002A (en) * | 2012-09-13 | 2012-12-19 | 北矿磁材科技股份有限公司 | Environment-friendly halogen-free rare-earth composite magnetic material |
| CN102832005A (en) * | 2012-09-13 | 2012-12-19 | 北矿磁材科技股份有限公司 | Environment-friendly halogen-free ferrite composite magnetic material |
| CN105161243A (en) * | 2015-10-13 | 2015-12-16 | 南通长江电器实业有限公司 | Composite bonded rare earth permanent magnetic material |
| CN105161241A (en) * | 2015-10-13 | 2015-12-16 | 南通长江电器实业有限公司 | High-performance composite bonding rare earth permanent magnet material |
| CN105374543B (en) * | 2015-12-03 | 2018-01-23 | 湖南航天磁电有限责任公司 | A kind of preparation method of Agglutinate neodymium-iron-boron ferrite permanent magnet |
| CN105374543A (en) * | 2015-12-03 | 2016-03-02 | 湖南航天磁电有限责任公司 | Preparation method for bonding NdFeB-ferrite permanent magnet |
| CN106803450A (en) * | 2017-02-21 | 2017-06-06 | 济南大学 | A kind of aluminium-nickel-cobalt magnetic particle and preparation method thereof |
| CN108766699A (en) * | 2017-02-21 | 2018-11-06 | 济南大学 | A kind of preparation method of alnico magnetic-particle |
| CN108766699B (en) * | 2017-02-21 | 2019-10-01 | 济南大学 | A kind of preparation method of alnico magnetic-particle |
| CN111601530A (en) * | 2017-06-20 | 2020-08-28 | 宝山控股有限责任公司 | Modular magnetically receptive wood and engineered wood surface units and magnetic box systems for covering floors, walls and other surfaces |
| CN107464648A (en) * | 2017-08-25 | 2017-12-12 | 横店集团东磁股份有限公司 | A kind of rubber magnet and preparation method thereof |
| CN108003428A (en) * | 2017-12-07 | 2018-05-08 | 南通华盛高聚物科技股份有限公司 | A kind of fluorescence magnetisable plastic film, bonding sheet and polybag and application method |
| CN111635576A (en) * | 2020-06-24 | 2020-09-08 | 江西伟普科技有限公司 | Preparation method of multiple-color-change magnetic binding material |
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Application publication date: 20101020 |