CN103580302B - A kind of halogen-free motor magnetic strip and preparation method thereof - Google Patents
A kind of halogen-free motor magnetic strip and preparation method thereof Download PDFInfo
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- CN103580302B CN103580302B CN201310384351.2A CN201310384351A CN103580302B CN 103580302 B CN103580302 B CN 103580302B CN 201310384351 A CN201310384351 A CN 201310384351A CN 103580302 B CN103580302 B CN 103580302B
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Abstract
The invention discloses a kind of halogen-free motor magnetic strip, the electric machine magnetic strip solving prior art adopts haloflex as binding agent, the problem of harm can be produced to human body, described halogen-free motor magnetic strip is made up of the raw material of following mass percent: ferromagnetic oxide powder 86 ~ 90%, binding agent 8 ~ 12%, plasticizer 1 ~ 3%, other auxiliary agents 0.5 ~ 2%, each material content sum equals 100%, and wherein, described binding agent is the mixture that SBS thermoplastic elastomer (TPE) and EVA thermosol form.The present invention adopts the mixture of SBS thermoplastic elastomer (TPE) and EVA thermosol as binding agent, and under the prerequisite ensureing magnetic stripe magnetic property, effectively prevent the harm that halogen produces human body, fail safe is good.The invention also discloses a kind of preparation method of halogen-free motor magnetic strip, comprising: (1) prepares burden; (2) mixing; (3) pulverize; (4) roll; (5) cut into slices.Preparation method's processing step of the present invention is simple, workable.
Description
Technical field
The present invention relates to a kind of electric machine magnetic strip, especially relate to a kind of halogen-free motor magnetic strip and preparation method thereof.
Background technology
The electric machine magnetic strip of current domestic production is substantially all adopt haloflex (CPE) as binding agent, because CPE contains halogens chlorine element, certain damaging effect is had to human body, because the countries such as Europe are more and more higher to the requirement of content of halogen, cause the electric machine magnetic strip containing halogen of domestic production to be difficult to enter estimated market value, thus greatly constrain the production of domestic electric machine magnetic stripe.Such as, Chinese patent Authorization Notice No.: CN100463080C, the Chinese patent in authorized announcement date 2 months 18 days year in 2009 discloses a kind of adhesive electric machine magnetic strip, and described adhesive electric machine magnetic strip prolongs by 3 ~ 8 layers and is pressed into: wherein said internal layer comprises by following weight percent composition: magnetic: 80% ~ 95%; Polyethylene: 2 ~ 10%; Plasticizer: 0 ~ 4% (not comprising 0); Stabilizer: 0 ~ 3% (not comprising 0); Coupling agent 0.1 ~ 3%; Described outer two layers comprise by following weight percent composition: magnetic: 80% ~ 95%; Polyethylene: 2 ~ 10%; Thermosol: 1% ~ 6%; Stabilizer: 0 ~ 2% (not comprising 0); Coupling agent: 0.1% ~ 3%.The binding agent used in this magnetic stripe is still haloflex, can produce harm, poor safety performance to human body.
Therefore finding suitable halogen electric machine magnetic strip replaces CPE manufacture of materials electric machine magnetic strip to become the huge problem of present electric machine magnetic strip industry existence.
Summary of the invention
The present invention is that the electric machine magnetic strip in order to solve prior art adopts haloflex as binding agent, the problem of harm can be produced to human body, provide a kind of halogen-free motor magnetic strip, this halogen-free motor magnetic strip adopts the mixture of SBS thermoplastic elastomer (TPE) and EVA thermosol as binding agent, under the prerequisite ensureing magnetic stripe magnetic property, effectively prevent the harm that halogen produces human body, fail safe is good.
The present invention also provided a kind of preparation method of halogen-free motor magnetic strip, and the method processing step is simple, workable.
To achieve these goals, the present invention is by the following technical solutions:
A kind of halogen-free motor magnetic strip, described halogen-free motor magnetic strip is made up of the raw material of following mass percent: ferromagnetic oxide powder 86 ~ 90%, binding agent 8 ~ 12%, plasticizer 1 ~ 3%, other auxiliary agents 0.5 ~ 2%, each material content sum equals 100%, and wherein, described binding agent is the mixture that SBS thermoplastic elastomer (TPE) and EVA thermosol form.Adopt mixture that SBS thermoplastic elastomer (TPE) and EVA thermosol form as binding agent in the present invention, all not halogen-containing in SBS thermoplastic elastomer (TPE) and EVA thermosol, fail safe is good, after adding SBS thermoplastic elastomer (TPE), the electric machine magnetic strip good mechanical property obtained, intensity is high, also has stronger corrosion resistance.But the fusing point of SBS thermoplastic elastomer (TPE) is high, viscosity is large, more difficult with the orientation of magnetic after magnetic mixing, the magnetic property of electric machine magnetic strip can be affected, therefore EVA thermosol is specially added again in the present invention to solve the problem adding SBS thermoplastic elastomer (TPE) rear motor magnetic stripe magnetic property and decline, EVA thermosol fusing point is low, and good with the mixing up property of magnetic, the most important thing is that EVA thermosol effectively can improve the orientation of magnetic.The present invention passes through the synergy of SBS thermoplastic elastomer (TPE) and EVA thermosol, can under the prerequisite of magnetic property ensureing electric machine magnetic strip, effectively avoid the harm that the halogen in binding agent produces human body, fail safe is good, and the electric machine magnetic strip good mechanical property obtained, intensity is high, has stronger corrosion resistance simultaneously.
As preferably, in described binding agent, the mass ratio of SBS thermoplastic elastomer (TPE) and EVA thermosol is 7:2 ~ 4.
As preferably, described plasticizer is one or more in dioctyl phthalate, trioctyl trimellitate (TOTM), epoxidized soybean oil, polyester plasticizer and PETO.
As preferably, other auxiliary agents described are one or more in lubricant, heat stabilizer and antioxidant.
As preferably, described lubricant is one or more in ethylene bis stearic acid amide, pentaerythritol stearate, monoglyceride, stearic acid, zinc stearate and calcium stearate, described heat stabilizer be in organic tin stabilizer, calcium zinc system's stabilizer and liquid rare earth stabilizer any one or multiple, described antioxidant is one or more in amine antioxidants, hindered phenol anti-oxidants, phosphite antioxidant, thio-based antioxidants and complex class antioxidant.
As preferably, described organic tin stabilizer is butanethiol tin, calcium zinc system stabilizer is CZ-1, CZ-2 or CZ-3, described liquid rare earth stabilizer is XT-2, described amine antioxidants is p-phenylenediamine (PPD), described hindered phenol anti-oxidants is alkylation list phenol, and described phosphite antioxidant is Finox168, and described thio-based antioxidants is thio-2 acid.
A preparation method for halogen-free motor magnetic strip, comprises the following steps:
(1) prepare burden: ferromagnetic oxide powder, binding agent, plasticizer and other auxiliary agents are mixed by proportioning, obtains compound.
(2) mixing: banburying to be carried out to compound, after banburying, material is cooled to room temperature.
(3) pulverize: become by cooled crushing material in step (2) particle diameter to be the crushed material of 0.5 ~ 1.5mm.
(4) roll: roll comminuting matter, rolling temperature is 120 ~ 200 DEG C, obtains magnetic sheet.The thickness of calendering can set according to the actual requirements.
(5) cut into slices: according to demand magnetic sheet cut and obtain halogen-free motor magnetic strip.
As preferably, in step (2), banburying pressure is 4 ~ 5MPa, and banburying temperature is 100 ~ 130 DEG C, and the banburying time is 25 ~ 30min.
Therefore, the invention has the beneficial effects as follows:
(1) halogen-free motor magnetic strip adopts the mixture of SBS thermoplastic elastomer (TPE) and EVA thermosol as binding agent, cross the synergy of SBS thermoplastic elastomer (TPE) and EVA thermosol, under the prerequisite ensureing magnetic stripe magnetic property, effectively prevent the harm that halogen produces human body, fail safe is good, the electric machine magnetic strip good mechanical property obtained, intensity is high, has stronger corrosion resistance simultaneously;
(2) preparation method's processing step of the present invention is simple, workable.
Embodiment
Below by embodiment, the present invention will be further described.
In the present invention, if not refer in particular to, all percentage is unit of weight, all devices and raw material all can be buied from market or the industry is conventional, and wherein, polyester plasticizer is purchased from Shanghai Qia Pu Chemical Co., Ltd., model PPA-2000, SBS thermoplastic elastomer (TPE) purchased from Xingtai City Yi You commerce and trade Co., Ltd, model SBS1201(YH-796), EVA thermosol is purchased from Hua Cheng plastic material Co., Ltd, model 250, method in following embodiment, if no special instructions, is this area conventional method.
Embodiment 1
(1) prepare burden: by ferromagnetic oxide powder, binding agent, plasticizer and other auxiliary agents mix by proportioning, obtain compound, in compound, the mass percentage of each component is: ferromagnetic oxide powder 86%, binding agent 10.5%, plasticizer 3%, other auxiliary agents 0.5%, wherein, binding agent by SBS thermoplastic elastomer (TPE) and EVA thermosol in mass ratio 7:2 mix, plasticizer is dioctyl phthalate, other auxiliary agents are by lubricant, heat stabilizer in mass ratio 1:1 mixes, in other auxiliary agents, lubricant is by ethylene bis stearic acid amide, pentaerythritol stearate in mass ratio 2:3 mixes, heat stabilizer is butanethiol tin.
(2) mixing: to carry out banburying to compound, banburying pressure is 4MPa, and banburying temperature is 130 DEG C, and the banburying time is 30min, after banburying, material is cooled to room temperature.
(3) pulverize: become by cooled crushing material in step (2) particle diameter to be the crushed material of 1.5mm.
(4) roll: roll comminuting matter, rolling temperature is 200 DEG C, obtains magnetic sheet.
(5) cut into slices: according to demand magnetic sheet cut and obtain halogen-free motor magnetic strip.
Detect the magnetic sheet that the present embodiment obtains, the magnetic property obtained is: Br=2590GS, Hcj=2534Oe, Hcb=1985Oe, BH=1.58MGOe.Density 3.84g/cm
3.
Embodiment 2
(1) prepare burden: by ferromagnetic oxide powder, binding agent, plasticizer and other auxiliary agents mix by proportioning, obtain compound, in compound, the mass percentage of each component is: ferromagnetic oxide powder 90%, binding agent 8%, plasticizer 1%, other auxiliary agents 1%, wherein, binding agent by SBS thermoplastic elastomer (TPE) and EVA thermosol in mass ratio 7:4 mix, plasticizer is by trioctyl trimellitate (TOTM), epoxidized soybean oil, PETO in mass ratio 3:2:1 mixes, other auxiliary agents by heat stabilizer and antioxidant in mass ratio 2:3 mix, in other auxiliary agents, heat stabilizer is by butanethiol tin, CZ-1, XT-2 in mass ratio 1:1:1 mixes, antioxidant is p-phenylenediamine (PPD).
(2) mixing: to carry out banburying to compound, banburying pressure is 5MPa, and banburying temperature is 100 DEG C, and the banburying time is 25min, after banburying, material is cooled to room temperature.
(3) pulverize: become by cooled crushing material in step (2) particle diameter to be the crushed material of 0.5mm.
(4) roll: roll comminuting matter, rolling temperature is 120 DEG C, obtains magnetic sheet.
(5) cut into slices: according to demand magnetic sheet cut and obtain halogen-free motor magnetic strip.
Detect the magnetic sheet that the present embodiment obtains, the magnetic property obtained is: Br=2510GS, Hcj=25100Oe, Hcb=1920Oe, BH=1.53MGOe.Density 3.75g/cm
3.
Embodiment 3
(1) prepare burden: by ferromagnetic oxide powder, binding agent, plasticizer and other auxiliary agents mix by proportioning, obtain compound, in compound, the mass percentage of each component is: ferromagnetic oxide powder 86%, binding agent 12%, plasticizer 1.4%, other auxiliary agents 0.6%, wherein, binding agent by SBS thermoplastic elastomer (TPE) and EVA thermosol in mass ratio 7:3 mix, plasticizer is by trioctyl trimellitate (TOTM), dioctyl phthalate in mass ratio 3:2 mixes, other auxiliary agents are by lubricant, heat stabilizer and antioxidant in mass ratio 3:1:3 mix, in other auxiliary agents, lubricant is zinc stearate, heat stabilizer is by butanethiol tin, CZ-1 in mass ratio 1:1 mixes, antioxidant is by p-phenylenediamine (PPD), thio-2 acid, Finox168 in mass ratio 1:3:3 mixes.
(2) mixing: to carry out banburying to compound, banburying pressure is 4.5MPa, and banburying temperature is 120 DEG C, and the banburying time is 28min, after banburying, material is cooled to room temperature.
(3) pulverize: become by cooled crushing material in step (2) particle diameter to be the crushed material of 1mm.
(4) roll: roll comminuting matter, rolling temperature is 180 DEG C, obtains magnetic sheet.
(5) cut into slices: according to demand magnetic sheet cut and obtain halogen-free motor magnetic strip.
Detect the magnetic sheet that the present embodiment obtains, the magnetic property obtained is: Br=2400GS, Hcj=24600Oe, Hcb=1870Oe, BH=1.38MGOe.Density 3.78g/cm
3.
Embodiment 4
(1) prepare burden: by ferromagnetic oxide powder, binding agent, plasticizer and other auxiliary agents mix by proportioning, obtain compound, in compound, the mass percentage of each component is: ferromagnetic oxide powder 87%, binding agent 10%, plasticizer 1%, other auxiliary agents 2%, wherein, binding agent by SBS thermoplastic elastomer (TPE) and EVA thermosol in mass ratio 7:4 mix, plasticizer is polyester plasticizer, other auxiliary agents are by lubricant, antioxidant in mass ratio 3:1 mixes, in other auxiliary agents, lubricant is by zinc stearate, calcium stearate in mass ratio 1:1 mixes, antioxidant is Finox168.
(2) mixing: to carry out banburying to compound, banburying pressure is 4MPa, and banburying temperature is 100 DEG C, and the banburying time is 30min, after banburying, material is cooled to room temperature.
(3) pulverize: become by cooled crushing material in step (2) particle diameter to be the crushed material of 1mm.
(4) roll: roll comminuting matter, rolling temperature is 180 DEG C, obtains magnetic sheet.
(5) cut into slices: according to demand magnetic sheet cut and obtain halogen-free motor magnetic strip.
Detect the magnetic sheet that the present embodiment obtains, the magnetic property obtained is: Br=2470GS, Hcj=2460Oe, Hcb=1810Oe, BH=1.47MGOe.Density 3.56g/cm
3.
Embodiment 5
(1) prepare burden: ferromagnetic oxide powder, binding agent, plasticizer and other auxiliary agents are mixed by proportioning, obtain compound, in compound, the mass percentage of each component is: ferromagnetic oxide powder 88%, binding agent 9%, plasticizer 2.5%, other auxiliary agents 0.5%, wherein, binding agent by SBS thermoplastic elastomer (TPE) and EVA thermosol in mass ratio 7:2 mix, plasticizer is epoxidized soybean oil, other auxiliary agents are lubricant, and lubricant is pentaerythritol stearate.
(2) mixing: to carry out banburying to compound, banburying pressure is 5MPa, and banburying temperature is 120 DEG C, and the banburying time is 27min, after banburying, material is cooled to room temperature.
(3) pulverize: become by cooled crushing material in step (2) particle diameter to be the crushed material of 1.5mm.
(4) roll: roll comminuting matter, rolling temperature is 180 DEG C, obtains magnetic sheet.
(5) cut into slices: according to demand magnetic sheet cut and obtain halogen-free motor magnetic strip.
Detect the magnetic sheet that the present embodiment obtains, the magnetic property obtained is: Br=2424GS, Hcj=2395Oe, Hcb=1788Oe, BH=1.40MGOe.Density 3.77g/cm
3.
Embodiment 6
(1) prepare burden: by ferromagnetic oxide powder, binding agent, plasticizer and other auxiliary agents mix by proportioning, obtain compound, in compound, the mass percentage of each component is: ferromagnetic oxide powder 89%, binding agent 8.5%, plasticizer 1.5%, other auxiliary agents 1%, wherein, binding agent by SBS thermoplastic elastomer (TPE) and EVA thermosol in mass ratio 7:3 mix, plasticizer is by epoxidized soybean oil, polyester plasticizer in mass ratio 1:5 mixes, other auxiliary agents are by lubricant, heat stabilizer in mass ratio 5:2 mixes, lubricant is by pentaerythritol stearate, monoglyceride in mass ratio 1:1 mixes, heat stabilizer is XT-2.
(2) mixing: to carry out banburying to compound, banburying pressure is 4 ~ 5MPa, and banburying temperature is 100 ~ 130 DEG C, and the banburying time is 25 ~ 30min, after banburying, material is cooled to room temperature.
(3) pulverize: become by cooled crushing material in step (2) particle diameter to be the crushed material of 0.5 ~ 1.5mm.
(4) roll: roll comminuting matter, rolling temperature is 120 ~ 200 DEG C, obtains magnetic sheet.
(5) cut into slices: according to demand magnetic sheet cut and obtain halogen-free motor magnetic strip.
Detect the magnetic sheet that the present embodiment obtains, the magnetic property obtained is: Br=2450GS, Hcj=2430Oe, Hcb=1860Oe, BH=1.47MGOe.Density 3.90g/cm
3.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (7)
1. a halogen-free motor magnetic strip, it is characterized in that, described halogen-free motor magnetic strip is made up of the raw material of following mass percent: ferromagnetic oxide powder 86 ~ 90%, binding agent 8 ~ 12%, plasticizer 1 ~ 3%, other auxiliary agents 0.5 ~ 2%, each material content sum equals 100%, and wherein, described binding agent is the mixture that SBS thermoplastic elastomer (TPE) and EVA thermosol form, in binding agent, the mass ratio of SBS thermoplastic elastomer (TPE) and EVA thermosol is 7:2 ~ 4.
2. a kind of halogen-free motor magnetic strip according to claim 1, is characterized in that, described plasticizer is one or more in dioctyl phthalate, trioctyl trimellitate (TOTM), epoxidized soybean oil, polyester plasticizer and PETO.
3. a kind of halogen-free motor magnetic strip according to claim 1, is characterized in that, other auxiliary agents described are one or more in lubricant, heat stabilizer and antioxidant.
4. a kind of halogen-free motor magnetic strip according to claim 3, it is characterized in that, described lubricant is one or more in ethylene bis stearic acid amide, pentaerythritol stearate, monoglyceride, stearic acid, zinc stearate and calcium stearate, described heat stabilizer be in organic tin stabilizer, calcium zinc system's stabilizer and liquid rare earth stabilizer any one or multiple, described antioxidant is one or more in amine antioxidants, hindered phenol anti-oxidants, phosphite antioxidant and thio-based antioxidants.
5. a kind of halogen-free motor magnetic strip according to claim 4, it is characterized in that, described organic tin stabilizer is butanethiol tin, calcium zinc system stabilizer is CZ-1, CZ-2 or CZ-3, described liquid rare earth stabilizer is XT-2, and described amine antioxidants is p-phenylenediamine (PPD), and described hindered phenol anti-oxidants is alkylation list phenol, described phosphite antioxidant is Finox168, and described thio-based antioxidants is thio-2 acid.
6. a preparation method for halogen-free motor magnetic strip as claimed in claim 1, is characterized in that, comprises the following steps:
(1) prepare burden: ferromagnetic oxide powder, binding agent, plasticizer and other auxiliary agents are mixed by proportioning, obtains compound;
(2) mixing: banburying to be carried out to compound, after banburying, material is cooled to room temperature;
(3) pulverize: become by cooled crushing material in step (2) particle diameter to be the crushed material of 0.5 ~ 1.5mm;
(4) roll: roll crushed material, rolling temperature is 120 ~ 200 DEG C, obtains magnetic sheet;
(5) cut into slices: according to demand magnetic sheet cut and obtain halogen-free motor magnetic strip.
7. preparation method according to claim 6, is characterized in that, in step (2), banburying pressure is 4 ~ 5MPa, and banburying temperature is 100 ~ 130 DEG C, and the banburying time is 25 ~ 30min.
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| CN105895295A (en) * | 2016-06-03 | 2016-08-24 | 安吉司润磁性材料有限公司 | Composite functional magnetic strip and fabrication method thereof |
| CN108987028B (en) * | 2017-06-03 | 2020-07-28 | 安徽邦瑞新材料科技有限公司 | Door seal magnetic strip based on environment-friendly plasticizer HM828 and preparation method thereof |
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| CN101000818A (en) * | 2006-01-13 | 2007-07-18 | 横店集团东磁有限公司 | Adhesive electric machine magnetic strip and preparation method thereof |
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