CN107418207A - A kind of high temperature resistant injecting ferrite master batch and preparation method thereof - Google Patents
A kind of high temperature resistant injecting ferrite master batch and preparation method thereof Download PDFInfo
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- CN107418207A CN107418207A CN201710548215.0A CN201710548215A CN107418207A CN 107418207 A CN107418207 A CN 107418207A CN 201710548215 A CN201710548215 A CN 201710548215A CN 107418207 A CN107418207 A CN 107418207A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/02—Polythioethers; Polythioether-ethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2381/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
- C08J2381/02—Polythioethers; Polythioether-ethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino carboxylic acids or of polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention relates to permanent magnet technical field.The invention discloses a kind of high temperature resistant injecting ferrite master batch, it is prepared by raw materials such as magnetic, polyphenylene sulfide, polyparaphenylene terephthalamide, surface treating additive, dispersant, antioxidant and lubricants, and the invention also discloses a kind of preparation method of high temperature resistant injecting ferrite master batch.Magnetic distribution is more uniform in injecting ferrite master batch of the present invention, and the charging quantity of magnetic is higher, has more preferable magnetic property；The viscosity of middle polyphenylene sulfide polymer is lower, and injecting ferrite master batch has more preferable mobility；Obtained injecting ferrite master batch is with more preferable magnetic property, stability and with high mobility；The preparation method of high temperature resistant injecting ferrite master batch in the present invention is simple, is readily produced.
Description
Technical field
The present invention relates to permanent magnet technical field, more particularly, to a kind of high temperature resistant injecting ferrite master batch and its preparation side
Method.
Background technology
With the progress of microelectric technique, each electronic product of in the market is being made great efforts to small size, portable direction hair
Exhibition.Small and special electric machine is widely used in various electronic products, to meet the market demand.At present, the micro- special electricity of in the market production
The material of machine is mainly ferromagnetic oxide powder, and the method for traditional production ferrimagnet is made variously-shaped by sinter molding
Product.But sintered magnet can deform in sintering process, yield rate is low, dimensional accuracy is whard to control, impact strength
It is low, multipole magnetization is difficult, it is often more important that used as rotor, axle and magnet can not synchronous processing to together, can only general
Axle is sticked together by binding agent and magnet, not only increases workload, and the rotor performance of production is also low.And it is molded iron oxygen
For body because it has selected the small binding agent of density ratio ferrite, injecting ferrite is lower than ferrite sintered body density, is advantageous to
Electrical equipment complete machine lightweight, simultaneously because the effect magnet of binding agent can be sheared arbitrarily, it is fabricated to various complicated shapes；And
Injecting ferrite consistent performance is good, and dimensional accuracy is high, is easy to produce in enormous quantities；Furthermore injecting ferrite impact resistance, it is not fragile
It is broken, it is easy to multipole magnetization, and can be processed and formed at one time with rotor with axle.
According to the production requirement of injection magnetic device, the type selecting of injection molding adhesion agent can be broadly divided into nylon 6, nylon 12 etc..It is existing
Domestic injecting products are molded based on nylon 6 and the series of nylon 12, but with the continuous propulsion of the high-end markets such as automotive field
Ferrite product high temperature resistant, high stability, high intensity etc. require more and more higher, and nylon 6, the injecting ferrite of the series of nylon 12
Product does not substantially reach the demand in market, and performance is relatively low, its intensity, and magnetic property and particulate material mobility can not meet height
The production of performance products needs.
The content of the invention
To solve the above problems, the invention provides one kind to have the characteristics that high temperature resistant, high stability, while mobile performance
The injecting ferrite master batch all more outstanding with magnetic property.
Present invention also offers a kind of preparation method for preparing above-mentioned injecting ferrite master batch.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of high temperature resistant injecting ferrite master batch, it is mainly made by the raw material of following percentage by weight：
70~88wt% of magnetic, 11~28wt% of polyphenylene sulfide, polyparaphenylene 0.05~2wt% of terephthalamide, surface
0.5~2wt% for the treatment of additive, 0.1~2wt% of dispersant, 0.05~0.1wt% of antioxidant, lubricant 0.05~
0.1wt%, the percentage by weight summation of above-mentioned raw materials is 100wt%.
Polyphenylene sulfide has higher fusing point, using its matrix as injecting ferrite master batch, can make injection iron oxygen
Body has higher heat resisting temperature, makes it have certain resistance to elevated temperatures；Polyparaphenylene terephthalamide is that one kind has
Machine high polymer, it can improve the mouldability and mobility of injecting ferrite master batch after being added in injecting ferrite master batch, can
So that magnetic is distributed in the less polyphenylene sulfide matrix middle and high concentration of addition, so as to improve the loading of magnetic, master batch is improved
Magnetic property；The viscous of polyphenylene sulfide can be reduced by adding a small amount of polyparaphenylene terephthalamide in polyphenylene sulfide simultaneously
Degree, so as to improve the mobility of injecting ferrite master batch；Corresponding surface treating additive, dispersant are properly added simultaneously, are resisted
Oxidant and lubricant enable to injecting ferrite master batch to have more preferable magnetic property, higher stability and preferably flowing
Property.
Preferably, the weight percent content of magnetic is 75~85wt%.
Preferably, magnetic is strontium ferrite magnetic powder, barium ferrite magnetic powder or rare-earth magnetic.
Preferably, magnetic is strontium ferrite magnetic powder.
In the present invention, magnetic can make obtained injection from strontium ferrite magnetic powder, barium ferrite magnetic powder or rare-earth magnetic
Ferrite has preferable magnetic property, stability and more preferable mobility, but for strontium ferrite magnetic powder, performance improvement effect
More obvious, performance can obtain bigger improvement.
Preferably, surface treating additive is phosphate coupling agent, titanate coupling agent, silane coupler or Aluminate
At least one of coupling agent.
Preferably, surface treating additive is one kind in silane coupler or phosphate coupling agent.
Preferably, dispersant is at least one of sodium pyrophosphate, segregation sodium phosphate or sodium tripolyphosphate.
Preferably, lubricant is paraffin, stearic acid or stearate.
One or more mixtures that stearate is selected in magnesium stearate, zinc stearate or calcium stearate are optimal.
Preferably, antioxidant is at least one of phosphatide or 4- hexyl resorcins.
A kind of preparation method of high temperature resistant injecting ferrite master batch, comprises the following steps：
Dispersant is added into magnetic and is mixed evenly, surface treating additive is then added thereto and is surface-treated, connect
It is uniform addition polyphenylene sulfide mixed with polyparaphenylene terephthalamide, antioxidant and mix lubricant, finally
It is granulated；Wherein mixture temperature is 80~120 DEG C, and prilling temperature is 280~320 DEG C；Surface treating additive is before addition
First mixed with ethanol or isopropanol, the weight percentage of ethanol or isopropanol not less than 65wt% and is less than in mixture
100wt%.
In preparation technology, dispersant and surface treating additive add before polyphenylene sulfide, are advantageous at the surface of magnetic
Reason, and then the uniformity combined between magnetic and polyphenylene sulfide can be improved.
Therefore, the invention has the advantages that：
(1) magnetic distribution is more uniform in injecting ferrite master batch of the present invention, and the charging quantity of magnetic is higher, and injecting ferrite is female
Grain has more preferable magnetic property；
(2) viscosity of polyphenylene sulfide polymer is lower in injecting ferrite master batch of the present invention, and injecting ferrite master batch has more preferable
Mobility；
(3) injecting ferrite master batch of the present invention is with more preferable magnetic property, stability and with high mobility；
(4) preparation method of the high temperature resistant injecting ferrite master batch in the present invention is simple, is readily produced.
Embodiment
Technical scheme is further described with reference to embodiment.
Obviously, described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, all other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of protection of the invention.
Embodiment 1
A kind of high temperature resistant injecting ferrite master batch, it is mainly made by the raw material of following percentage by weight：
Rare-earth magnetic 70wt%, polyphenylene sulfide 23.8wt%, polyparaphenylene terephthalamide 2.0wt%, titanate esters coupling
Agent 2.0wt%, sodium pyrophosphate 2.0wt%, phosphatidase 0 .1wt%, paraffin 0.1wt%.
A kind of preparation method of high temperature resistant injecting ferrite master batch, comprises the following steps：
Dispersant is added into magnetic and is mixed evenly, surface treating additive is then added thereto and is surface-treated, connect
It is uniform addition polyphenylene sulfide mixed with polyparaphenylene terephthalamide, antioxidant and mix lubricant, finally
Use dual-screw pelletizer extruding pelletization；Wherein mixture temperature is 80 DEG C, and prilling temperature is 280 DEG C；Surface treating additive exists
First mixed before addition with ethanol or isopropanol, the weight percentage of ethanol or isopropanol is 65wt% in mixture.
Embodiment 2
A kind of high temperature resistant injecting ferrite master batch, it is mainly made by the raw material of following percentage by weight：
Strontium ferrite magnetic powder 85.68wt%, polyphenylene sulfide 13.1wt%, polyparaphenylene terephthalamide 0.05wt%, phosphorus
Acid esters coupling agent 0.86wt%, segregation sodium phosphate 0.17wt%, 4- hexyl resorcin 0.07wt%, stearic acid 0.07wt%.
A kind of preparation method of high temperature resistant injecting ferrite master batch, comprises the following steps：
Dispersant is added into magnetic and is mixed evenly, surface treating additive is then added thereto and is surface-treated, connect
It is uniform addition polyphenylene sulfide mixed with polyparaphenylene terephthalamide, antioxidant and mix lubricant, finally
Use dual-screw pelletizer extruding pelletization；Wherein mixture temperature is 100 DEG C, and prilling temperature is 290 DEG C；Surface treating additive exists
First mixed before addition with ethanol or isopropanol, the weight percentage of ethanol or isopropanol is 70wt% in mixture.
Embodiment 3
A kind of high temperature resistant injecting ferrite master batch, it is mainly made by the raw material of following percentage by weight：
Strontium ferrite magnetic powder 85.8wt%, polyphenylene sulfide 12.95wt%, polyparaphenylene terephthalamide 0.08wt%, silicon
Alkane coupling agent 0.85wt%, segregation sodium phosphate 0.17wt%, 4- hexyl resorcin 0.08wt%, stearic acid 0.07wt%.
A kind of preparation method of high temperature resistant injecting ferrite master batch, comprises the following steps：
Dispersant is added into magnetic and is mixed evenly, surface treating additive is then added thereto and is surface-treated, connect
It is uniform addition polyphenylene sulfide mixed with polyparaphenylene terephthalamide, antioxidant and mix lubricant, finally
Use dual-screw pelletizer extruding pelletization；Wherein mixture temperature is 100 DEG C, and prilling temperature is 300 DEG C；Surface treating additive exists
First mixed before addition with ethanol or isopropanol, the weight percentage of ethanol or isopropanol is 80wt% in mixture.
Embodiment 4
A kind of high temperature resistant injecting ferrite master batch, it is mainly made by the raw material of following percentage by weight：
Strontium ferrite magnetic powder 84.4wt%, polyphenylene sulfide 14.4wt%, polyparaphenylene terephthalamide 0.05wt%, silane
Coupling agent 0.82wt%, segregation sodium phosphate 0.17wt%, 4- hexyl resorcin 0.09wt%, stearic acid 0.07wt%.
A kind of preparation method of high temperature resistant injecting ferrite master batch, comprises the following steps：
Dispersant is added into magnetic and is mixed evenly, surface treating additive is then added thereto and is surface-treated, connect
It is uniform addition polyphenylene sulfide mixed with polyparaphenylene terephthalamide, antioxidant and mix lubricant, finally
Use dual-screw pelletizer extruding pelletization；Wherein mixture temperature is 100 DEG C, and prilling temperature is 300 DEG C；Surface treating additive exists
First mixed before addition with ethanol or isopropanol, the weight percentage of ethanol or isopropanol is 90wt% in mixture.
Embodiment 5
A kind of high temperature resistant injecting ferrite master batch, it is mainly made by the raw material of following percentage by weight：
Barium ferrite magnetic powder 71.45wt%, polyphenylene sulfide 28wt%, polyparaphenylene terephthalamide 0.1wt%, Aluminate
Coupling agent 0.2wt%, sodium tripolyphosphate 0.1wt%, phosphatidase 0 .075wt%, zinc stearate 0.075wt%.
A kind of preparation method of high temperature resistant injecting ferrite master batch, comprises the following steps：
Dispersant is added into magnetic and is mixed evenly, surface treating additive is then added thereto and is surface-treated, connect
It is uniform addition polyphenylene sulfide mixed with polyparaphenylene terephthalamide, antioxidant and mix lubricant, finally
Use dual-screw pelletizer extruding pelletization；Wherein mixture temperature is 110 DEG C, and prilling temperature is 310 DEG C；Surface treating additive exists
First mixed before addition with ethanol or isopropanol, the weight percentage of ethanol or isopropanol is 99wt% in mixture.
Embodiment 6
A kind of high temperature resistant injecting ferrite master batch, it is mainly made by the raw material of following percentage by weight：
Barium ferrite magnetic powder 88wt%, polyphenylene sulfide 11.25wt%, polyparaphenylene terephthalamide 0.05wt%, metatitanic acid
Ester coupling agent 0.5wt%, sodium pyrophosphate 0.1wt%, phosphatidase 0 .05wt%, magnesium stearate 0.05wt%.
A kind of preparation method of high temperature resistant injecting ferrite master batch, comprises the following steps：
Dispersant is added into magnetic and is mixed evenly, surface treating additive is then added thereto and is surface-treated, connect
It is uniform addition polyphenylene sulfide mixed with polyparaphenylene terephthalamide, antioxidant and mix lubricant, finally
Use dual-screw pelletizer extruding pelletization；Wherein mixture temperature is 120 DEG C, and prilling temperature is 320 DEG C；Surface treating additive exists
First mixed before addition with ethanol or isopropanol, the weight percentage of ethanol or isopropanol is 99.9wt% in mixture.
Comparative example 1
Take 50kg ferromagnetic oxide powders (Sr powder) to add 100g dispersants sodium metaphosphate fully to mix 50 minutes, separately add silane coupled
Agent 500g is surface-treated 30 minutes.Add PPS powder 7.5kg to mix 15 minutes, by mixed magnetic by using twin-screw
Comminutor extruding pelletization.
Batch mixing uses temperature at 100 DEG C to mix, and prilling temperature is carried out at 300 DEG C.
Comparative example 2
Take 50kg ferromagnetic oxide powders (Sr powder) to add 100g dispersants sodium metaphosphate fully to mix 50 minutes, separately add silane coupled
Agent 500g is surface-treated 30 minutes.Add PPS powder 9.0kg to mix 15 minutes, by mixed magnetic by using twin-screw
Comminutor extruding pelletization.
Batch mixing uses temperature at 100 DEG C to mix, and prilling temperature is carried out at 300 DEG C.
Performance test：
The particulate material that above-described embodiment and comparative example manufacture is put into injection machine, 320 DEG C of injection temperature, injection pressure 85kg/
cm2, dwell time 5.0S, be injected into external diameter 3.2cm, internal diameter 1.2cm, high 1cm cylinder ring carry out impact strength measure；
And by injection machine molded samples, molded samples size is diameter 3cm, high 1cm standard sample post, 325 DEG C of forming temperature, is molded
Shi Doujia 10000Oe alignment magnetic field；Its melt and dissolved index measurement temperature is 330 DEG C, is incubated 10min, is measured under pressure 5kg.
The performance test results such as following table
The present invention is further specifically understood by embodiment.By adding the polyparaphenylene of the invention used to benzene two
Formamide, which is used in mixed way polyphenylene sulfide and obtains binding agent as injecting ferrite particulate material, can effectively improve the flowing of particulate material
Property and magnetic property.But it is also seen that with the increase of polyparaphenylene terephthalamide addition, injecting ferrite glues
Degree can increase, so as to influence its mobility, therefore by the control of polyparaphenylene terephthalamide addition 0.05%-1% it
Between be optimal.
It should be appreciated that to those skilled in the art, it can according to the above description be improved or be become
Change, and all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of high temperature resistant injecting ferrite master batch, it is characterised in that it is mainly made by the raw material of following percentage by weight：
70~88wt% of magnetic, 11~28wt% of polyphenylene sulfide, polyparaphenylene 0.05~2wt% of terephthalamide, surface
0.5~2wt% for the treatment of additive, 0.1~2wt% of dispersant, 0.05~0.1wt% of antioxidant, lubricant 0.05~
0.1wt%, the percentage by weight summation of above-mentioned raw materials is 100wt%.
A kind of 2. high temperature resistant injecting ferrite master batch according to claim 1, it is characterised in that：
The weight percent content of the magnetic is 75~85wt%.
A kind of 3. high temperature resistant injecting ferrite master batch according to claim 1, it is characterised in that：
Described magnetic is strontium ferrite magnetic powder, barium ferrite magnetic powder or rare-earth magnetic.
A kind of 4. high temperature resistant injecting ferrite master batch according to claim 1 or 3, it is characterised in that：
Described magnetic is strontium ferrite magnetic powder.
A kind of 5. high temperature resistant injecting ferrite master batch according to claim 1, it is characterised in that：
Described surface treating additive is phosphate coupling agent, titanate coupling agent, silane coupler or aluminate coupling agent
At least one of.
A kind of 6. high temperature resistant injecting ferrite master batch according to claim 1 or 5, it is characterised in that：
Described surface treating additive is one kind in silane coupler or phosphate coupling agent.
A kind of 7. high temperature resistant injecting ferrite master batch according to claim 1, it is characterised in that：
Described dispersant is at least one of sodium pyrophosphate, segregation sodium phosphate or sodium tripolyphosphate.
A kind of 8. high temperature resistant injecting ferrite master batch according to claim 1, it is characterised in that：
Described lubricant is paraffin, stearic acid or stearate.
A kind of 9. high temperature resistant injecting ferrite master batch according to claim 1, it is characterised in that：
Described antioxidant is at least one of phosphatide or 4- hexyl resorcins.
A kind of 10. preparation method of high temperature resistant injecting ferrite master batch according to claim 1, it is characterised in that including with
Lower step：
Dispersant is added into magnetic and is mixed evenly, surface treating additive is then added thereto and is surface-treated, connect
It is uniform addition polyphenylene sulfide mixed with polyparaphenylene terephthalamide, antioxidant and mix lubricant, finally
It is granulated；Wherein mixture temperature is 80~120 DEG C, and prilling temperature is 280~320 DEG C；Surface treating additive is before addition
First mixed with ethanol or isopropanol, the weight percentage of ethanol or isopropanol not less than 65wt% and is less than in mixture
100wt%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111210964A (en) * | 2019-10-10 | 2020-05-29 | 横店集团东磁股份有限公司 | Injection molding permanent magnetic ferrite magnet and preparation method thereof |
| CN111378282A (en) * | 2019-12-09 | 2020-07-07 | 赣州能之光新材料有限公司 | PPS-based permanent magnet composite material and preparation method thereof |
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| CN111378282B (en) * | 2019-12-09 | 2023-03-28 | 赣州能之光新材料有限公司 | PPS-based permanent magnet composite material and preparation method thereof |
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Application publication date: 20171201 |