CN102408703B - Ferrite/polyamide composite material and preparation method as well as application thereof - Google Patents
Ferrite/polyamide composite material and preparation method as well as application thereof Download PDFInfo
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- CN102408703B CN102408703B CN201110104992.9A CN201110104992A CN102408703B CN 102408703 B CN102408703 B CN 102408703B CN 201110104992 A CN201110104992 A CN 201110104992A CN 102408703 B CN102408703 B CN 102408703B
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- 239000004952 Polyamide Substances 0.000 title claims abstract description 78
- 229920002647 polyamide Polymers 0.000 title claims abstract description 78
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title abstract 4
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 29
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 28
- 239000000314 lubricant Substances 0.000 claims abstract description 28
- 229920000728 polyester Polymers 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 239000007822 coupling agent Substances 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 84
- 239000003795 chemical substances by application Substances 0.000 claims description 45
- 239000006185 dispersion Substances 0.000 claims description 30
- 239000003112 inhibitor Substances 0.000 claims description 25
- 230000003647 oxidation Effects 0.000 claims description 25
- 238000007254 oxidation reaction Methods 0.000 claims description 25
- 238000002156 mixing Methods 0.000 claims description 23
- 239000002243 precursor Substances 0.000 claims description 23
- 150000001408 amides Chemical class 0.000 claims description 13
- -1 polybutylene terephthalate Polymers 0.000 claims description 5
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 230000005291 magnetic effect Effects 0.000 abstract description 24
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000001746 injection moulding Methods 0.000 abstract description 9
- 239000003086 colorant Substances 0.000 abstract description 3
- 229920006351 engineering plastic Polymers 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 description 19
- 230000008018 melting Effects 0.000 description 19
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 17
- 239000011347 resin Substances 0.000 description 16
- 229920005989 resin Polymers 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 9
- 238000005469 granulation Methods 0.000 description 8
- 230000003179 granulation Effects 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 8
- 125000003003 spiro group Chemical group 0.000 description 8
- 230000008901 benefit Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 2
- CAPNUXMLPONECZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-2-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=C(O)C(C(C)(C)C)=C1 CAPNUXMLPONECZ-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- ULBTUVJTXULMLP-UHFFFAOYSA-N butyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCCC ULBTUVJTXULMLP-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229940075507 glyceryl monostearate Drugs 0.000 description 1
- SYECJBOWSGTPLU-UHFFFAOYSA-N hexane-1,1-diamine Chemical compound CCCCCC(N)N SYECJBOWSGTPLU-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- RVWOWEQKPMPWMQ-UHFFFAOYSA-N methyl 12-hydroxyoctadecanoate Chemical compound CCCCCCC(O)CCCCCCCCCCC(=O)OC RVWOWEQKPMPWMQ-UHFFFAOYSA-N 0.000 description 1
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical class OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229960003742 phenol Drugs 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention is suitable for the technical field of engineering plastics, and provides a ferrite/polyamide composite material and a preparation method as well as application thereof. The ferrite/polyamide composite material comprises the following components in parts by weight: 72-92 parts of ferromagnetic oxide powder, 5-17 parts of polyamide, 2-7 parts of cyclic polyester, 0.5-2 parts of coupling agent and 0.5-2 parts of mixture of antioxidant, lubricating agent, dispersing agent, coupling agent and coloring agent. The ferrite/polyamide composite material provided by the invention obviously increases the processing fluidity by the modification action of the cyclic polyester and coupling agent, and can be widely used for manufacturing injection molding products; and the products obtained by injection molding have excellent mechanical properties as well as excellent and stable magnetic properties. The preparation method provided by the invention is simple in operation, low in cost and equipment requirement and very suitable for industrialized production.
Description
Technical field
The invention belongs to engineering plastics technical field, relate in particular to a kind of ferrite/polyamide compoiste material, its preparation method and application.
Background technology
Magnetic device generally with magnetic powder by the mode machine-shaping of sintering or bonding, wherein, bonding magnetic device that can injection moulding, because physical strength is high, production is good, and manufacturing dimension is accurate, easy-formation opposite sex part, renewable advantage, has obtained development fast in recent years.
With polymeric amide, make the bonded ferrite magnetic-particle of carrier, combine the advantage of the workability of ferritic high performance-price ratio and polymeric amide, occupied 90% injecting magnetic market in the market.But, due to ferritic addition large (total amount ratio is greater than 80% conventionally), cause the mobility of matrix material excessively poor, cause injection molding difficulty, magnetic property loss is excessive, and magnetic is inhomogeneous, the shortcomings such as physical strength is low, can not meet the service requirements on market far away, limit especially injecting magnetic in some structure relative complex, magnetic requires to apply in Gao field.
Summary of the invention
In view of this, the embodiment of the present invention provides ferrite/polyamide compoiste material that a kind of processing flowability is good, physical strength is high, its preparation method and application.
The present invention is achieved in that
/ polyamide compoiste material, comprises the component of following parts by weight:
And,
/ polyamide compoiste material preparation method, comprises the steps:
By the ferromagnetic oxide powder of following parts by weight, polymeric amide, cyclic polyester, coupling agent, oxidation inhibitor, lubricant, dispersion agent, dispersion agent and tinting material are mixing, obtain polyamide compoiste material precursor
This ferrite/polyamide compoiste material precursor is extruded to processing, obtains polyamide compoiste material,
The embodiment of the present invention further provides above-mentioned ferrite/polyamide compoiste material at household electrical appliances, computer, communication equipment, the application in automobile and war products.
Embodiment of the present invention ferrite/polyamide compoiste material, by the modifying function of cyclic polyester and coupling agent, increased significantly processing fluidity, can be widely used in making injecting products, the product that institute's injection moulding obtains has very good mechanical properties, and magnetic property is excellent and stable.Embodiment of the present invention preparation method, simple to operate, with low cost, low for equipment requirements, be very suitable for suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 embodiment of the present invention ferrite/polyamide compoiste material preparation method schema.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention provides ferrite/polyamide compoiste material, comprises the component of following parts by weight:
Particularly, the unit of the parts by weight described in the embodiment of the present invention be gram, kilogram or ton.
Particularly, this ferromagnetic oxide powder (ferrite particle) refers to the metal oxide consisting of ferric oxide and one or more other metal oxides (such as nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide etc.), is a kind of magneticsubstance; This ferrite is not restriction specifically, such as being Mn-Zn ferrite, nickel-zinc ferrite, magnesium ferrite, strontium ferrites etc., is preferably anisotropy strontium ferrites; In embodiment of the present invention ferrite/polyamide compoiste material, ferrite is particulate state, and grain diameter is 0.1-10 micron; These ferritic parts by weight are 72-92 part, are preferably 80-90 part.
Particularly, this polymeric amide is PA6 or PA12, and wherein the preferred relative viscosity of PA6 is 2.4 sticky PA6, and for example, Xin Huimeida polyamide fibre limited-liability company produces, trade names M2400; Or the production of Yueyang Ba Ling petro-chemical corporation, trade names YH400; Or the production of Ube company, trade names 1013B.PA12 is that du pont company produces, trade names 159L; Or the production of Switzerland EMS company, trade names L20G; Or German Hao Site company produces, trade names X1988HB.By adding polymeric amide, can be used as binding agent bonding magnetic effectively on the one hand, provide on the other hand ferrite/polyamide compoiste material basic forming process mobility and physical mechanical strength.In embodiment of the present invention ferrite/polyamide compoiste material, the parts by weight of polymeric amide are 5-17 part, are preferably 6-12 part.
Particularly, this cyclic polyester refers to, the few ring-type polybutylene terephthalate of the macromole compound that molecular weight is 1000-100000; For example, U.S. Cyclics Corp produces, trade names CBT100; Or the production of Dongguan Lu Ya macromolecular material company limited, trade names AT-100.This cyclic polyester and polymeric amide have splendid consistency, can effectively improve the injection molding mobility of matrix material, promote uniformly dispersed in moulding process of ferromagnetic oxide powder, make matrix material show excellent stable magnetic property.The parts by weight of this cyclic polyester are 2-8 part, are preferably 3-6 part.
Particularly, this coupling agent is selected from titanate coupling agent, chromium complex coupling agent and silane coupling agent etc., is preferably silane coupling agent, and this silane coupling agent is KH550 for example, KH560, KH570, KH792, DL602, DL171; Preferred γ-methacryloxypropyl trimethoxy silane (KH-570), for example, U.S. combinating carbide company produces, trade names A-174; Or the production of chemical company of Japanese SHIN-ETSU HANTOTAI, trade names KBM-503; Or the production of Dow corning chemical company, trade names SH-6030.By adding coupling agent, can effectively connect ferromagnetic oxide powder and polymeric amide, increase the mobility of ferrite/polyamide compoiste material, be conducive to improve the dispersiveness of ferrite in matrix material; Particularly KH-570, is coupling agent excellent between ferromagnetic oxide powder and polymeric amide, is promoting there is good complex role with cyclic polyester aspect dispersion, and can significantly improve the physical mechanical strength of matrix material.The parts by weight of this coupling agent are 0.5-2, are preferably 1 part.
Particularly, this oxidation inhibitor, lubricant, dispersion agent, in coloring agent mixture, oxidation inhibitor, lubricant, dispersion agent, does not have the restriction of parts by weight ratio between tinting material, according to actual need of production, add; This oxidation inhibitor, lubricant, dispersion agent, tinting material is commercially available prod, is not specifically limited.Oxidation inhibitor was as 1010: four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol esters; Or 1076: the positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid; Or 1098:N, N '-bis--(3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine, or 1790:1,3; 5-tri-(the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl)-1,3,5-triazines-2; 4,6 (1H, 3H, 5H)-triketones etc.Lubricant is as Zinic stearas, n-butyl stearate, amine hydroxybenzene, ethylenebisstearamide, glyceryl monostearate etc.Dispersion agent is as whiteruss, oxidized polyethlene wax, methyl hydroxystearate, polydimethylsiloxane etc.Tinting material is as carbon black, titanium dioxide white, iron oxide brown, ultramarine blue, permanent bordeaux, phthalein viridescent etc.This this oxidation inhibitor, lubricant, dispersion agent, the parts by weight of coloring agent mixture are 0.5-2, are preferably 1 part.
Embodiment of the present invention ferrite/polyamide compoiste material, by the modifying function of cyclic polyester and coupling agent, increased significantly processing fluidity, can be widely used in making injecting products, the product that institute's injection moulding obtains has very good mechanical properties, and magnetic property is excellent and stable.
Refer to Fig. 1, Fig. 1 shows embodiment of the present invention ferrite/polyamide compoiste material preparation method schema, comprises the steps:
Step S01, by the ferromagnetic oxide powder of following parts by weight, polymeric amide, cyclic polyester, coupling agent, oxidation inhibitor, lubricant, dispersion agent, dispersion agent and tinting material are mixing, obtain polyamide compoiste material precursor;
Step S02, extrudes processing by this ferrite/polyamide compoiste material precursor, obtains polyamide compoiste material,
Particularly, this ferrite, polymeric amide, cyclic polyester, coupling agent, oxidation inhibitor, lubricant, dispersion agent, coupling agent and tinting material etc., with aforesaid identical, do not repeat to set forth at this.
Particularly, in step S01, the equipment that mixing step is used is restriction not, kneader for example, and mixing roll, Banbury mixer, preferred Banbury mixer, mixing time is 5-20 minute, temperature is controlled at 200-280 ℃; By mixing processing, each component in ferrite/polyamide compoiste material precursor is evenly mixed.
Particularly, in step S02, this is extruded treatment step and is specially: the extrusion equipment using is restriction not, twin screw extruder for example, and wherein screw slenderness ratio is 28～44; Extruding processing parameter in treatment step is:
One 220～260 ℃ of district's temperature 210～250 ℃， bis-district's temperature 220～260 ℃， tri-district's temperature 220～270 ℃， tetra-district's temperature, head temperature is 230～280 ℃, extruding the treatment time is 0.5～2 minute, extrudes processing pressure 10～30MPa.
Embodiment of the present invention preparation method, simple to operate, with low cost, low for equipment requirements, be very suitable for suitability for industrialized production.
The embodiment of the present invention further provides above-mentioned ferrite/polyamide compoiste material at household electrical appliances, computer, communication equipment, the application in automobile and war products.
Below in conjunction with specific embodiment, above-mentioned ferrite/polyamide compoiste material and preparation method are described in detail.
Embodiment mono-
Embodiment of the present invention ferrite/polyamide compoiste material comprises the component of following parts by weight:
Parts by weight are 80 ferromagnetic oxide powder, the PA6 resin that parts by weight are 12, the cyclic polyester that parts by weight are 6, the KH-570 that parts by weight are 1, the oxidation inhibitor that parts by weight are 1, lubricant, dispersion agent and anti ultraviolet agent mixture.
Embodiment of the present invention polyamide compoiste material preparation method, comprises the steps:
A, the ferromagnetic oxide powder that is 80 by parts by weight, parts by weight are 12 PA6 resin, the cyclic polyester that parts by weight are 6, the KH-570 that parts by weight are 1, parts by weight are 1 oxidation inhibitor, lubricant, dispersion agent and anti ultraviolet agent mixture, put into Banbury mixer and carry out fully mixing 15 minutes, 230 ℃ of melting temperatures, obtain polyamide compoiste material precursor;
B, this polyamide compoiste material precursor is put into twin screw extruder melting mixing, extruding pelletization, the screw diameter of twin screw extruder is 35mm, the ratio of spiro rod length and diameter is 32: 1, extrusion temperature is respectively 220 ℃ of district's temperature 230 ℃， bis-district's temperature 240 ℃， tri-district's temperature, four 230 ℃ of district's temperature, 245 ℃ of head temperatures, extrude treatment time 1min, and extruding processing pressure is 15MPa.
Embodiment bis-
Embodiment of the present invention ferrite/polyamide compoiste material comprises the component of following parts by weight:
Parts by weight are 90 ferromagnetic oxide powder, the PA6 resin that parts by weight are 5, the cyclic polyester that parts by weight are 3, the KH-570 that parts by weight are 1, the oxidation inhibitor that parts by weight are 1, lubricant, dispersion agent and anti ultraviolet agent mixture.
Embodiment of the present invention ferrite/polyamide compoiste material preparation method, comprises the steps:
A, the ferromagnetic oxide powder that is 90 by parts by weight, parts by weight are 5 PA6 resin, the cyclic polyester that parts by weight are 3, the KH-570 that parts by weight are 1, parts by weight are 1 oxidation inhibitor, lubricant, dispersion agent and anti ultraviolet agent mixture, put into Banbury mixer and carry out fully mixing 18 minutes, 235 ℃ of melting temperatures, obtain polyamide compoiste material precursor;
B, puts into twin screw extruder melting mixing by this polyamide compoiste material precursor, extrudes, granulation, the screw diameter of twin screw extruder is 35mm, and the ratio of spiro rod length and diameter is 40: 1, and extrusion temperature is respectively 250 ℃ of district's temperature, two 270 ℃ of district's temperature, three 270 ℃ of district's temperature 260 ℃， tetra-district's temperature, 275 ℃ of head temperatures, extrude treatment time 1.5min, extruding processing pressure is 13MPa.
Embodiment tri-
Embodiment of the present invention ferrite/polyamide compoiste material comprises the component of following parts by weight:
Parts by weight are 80 ferromagnetic oxide powder, the PA12 resin that parts by weight are 12, the cyclic polyester that parts by weight are 6, the KH-570 that parts by weight are 1, the oxidation inhibitor that parts by weight are 1, lubricant, dispersion agent and anti ultraviolet agent mixture.
Embodiment of the present invention ferrite/polyamide compoiste material preparation method, comprises the steps:
A, the ferromagnetic oxide powder that is 80 by parts by weight, parts by weight are 12 PA12 resin, the cyclic polyester that parts by weight are 6, the KH-570 that parts by weight are 1, parts by weight are 1 oxidation inhibitor, lubricant, dispersion agent and anti ultraviolet agent mixture, put into Banbury mixer and carry out fully mixing 15 minutes, 210 ℃ of melting temperatures, obtain polyamide compoiste material precursor;
B, puts into twin screw extruder melting mixing by this polyamide compoiste material precursor, extrudes, granulation, the screw diameter of twin screw extruder is 35mm, and the ratio of spiro rod length and diameter is 36: 1, and extrusion temperature is respectively 210 ℃ of district's temperature, two 230 ℃ of district's temperature, three 220 ℃ of district's temperature 220 ℃， tetra-district's temperature, 235 ℃ of head temperatures, extrude treatment time 2min, extruding processing pressure is 16MPa.
Embodiment tetra-
Embodiment of the present invention ferrite/polyamide compoiste material comprises the component of following parts by weight:
Parts by weight are 90 ferromagnetic oxide powder, the PA12 resin that parts by weight are 5, the cyclic polyester that parts by weight are 3, the KH-570 that parts by weight are 1, the oxidation inhibitor that parts by weight are 1, lubricant, dispersion agent and anti ultraviolet agent mixture.
Embodiment of the present invention ferrite/polyamide compoiste material preparation method, comprises the steps:
A, the ferromagnetic oxide powder that is 90 by parts by weight, parts by weight are 5 PA12 resin, the cyclic polyester that parts by weight are 3, the KH-570 that parts by weight are 1, parts by weight are 1 oxidation inhibitor, lubricant, dispersion agent and anti ultraviolet agent mixture, put into Banbury mixer and carry out fully mixing 12 minutes, 215 ℃ of melting temperatures, obtain polyamide compoiste material precursor;
B, puts into twin screw extruder melting mixing by this polyamide compoiste material precursor, extrudes, granulation, the screw diameter of twin screw extruder is 35mm, and the ratio of spiro rod length and diameter is 44: 1, and extrusion temperature is respectively 215 ℃ of district's temperature, two 235 ℃ of district's temperature, three 225 ℃ of district's temperature 225 ℃， tetra-district's temperature, 245 ℃ of head temperatures, extrude treatment time 1.5min, extruding processing pressure is 18MPa.
Embodiment five
Embodiment of the present invention ferrite/polyamide compoiste material comprises the component of following parts by weight:
Parts by weight are 72 ferromagnetic oxide powder, the PA12 resin that parts by weight are 17, the cyclic polyester that parts by weight are 7, the KH-570 that parts by weight are 2, the oxidation inhibitor that parts by weight are 2, lubricant, dispersion agent and anti ultraviolet agent mixture.
Embodiment of the present invention ferrite/polyamide compoiste material preparation method, comprises the steps:
A, the ferromagnetic oxide powder that is 72 by parts by weight, parts by weight are 17 PA12 resin, the cyclic polyester that parts by weight are 7, the KH-570 that parts by weight are 2, parts by weight are 2 oxidation inhibitor, lubricant, dispersion agent and anti ultraviolet agent mixture, put into Banbury mixer and carry out fully mixing 12 minutes, 215 ℃ of melting temperatures, obtain polyamide compoiste material precursor;
B, puts into twin screw extruder melting mixing by this polyamide compoiste material precursor, extrudes, granulation, the screw diameter of twin screw extruder is 35mm, and the ratio of spiro rod length and diameter is 44: 1, and extrusion temperature is respectively 215 ℃ of district's temperature, two 235 ℃ of district's temperature, three 225 ℃ of district's temperature 225 ℃， tetra-district's temperature, 245 ℃ of head temperatures, extrude treatment time 1.5min, extruding processing pressure is 18MPa.
Embodiment six
Embodiment of the present invention ferrite/polyamide compoiste material comprises the component of following parts by weight:
Parts by weight are 92 ferromagnetic oxide powder, the PA12 resin that parts by weight are 5, the cyclic polyester that parts by weight are 2, the KH-570 that parts by weight are 0.5, the oxidation inhibitor that parts by weight are 0.5, lubricant, dispersion agent and anti ultraviolet agent mixture.
Embodiment of the present invention ferrite/polyamide compoiste material preparation method, comprises the steps:
A, the ferromagnetic oxide powder that is 92 by parts by weight, parts by weight are 5 PA12 resin, the cyclic polyester that parts by weight are 2, the KH-570 that parts by weight are 0.5, parts by weight are 0.5 oxidation inhibitor, lubricant, dispersion agent and anti ultraviolet agent mixture, put into Banbury mixer and carry out fully mixing 12 minutes, 215 ℃ of melting temperatures, obtain polyamide compoiste material precursor;
B, puts into twin screw extruder melting mixing by this polyamide compoiste material precursor, extrudes, granulation, the screw diameter of twin screw extruder is 35mm, and the ratio of spiro rod length and diameter is 44: 1, and extrusion temperature is respectively 215 ℃ of district's temperature, two 235 ℃ of district's temperature, three 225 ℃ of district's temperature 225 ℃， tetra-district's temperature, 245 ℃ of head temperatures, extrude treatment time 1.5min, extruding processing pressure is 18MPa.
Comparative example one
This comparative example ferrite/polyamide compoiste material comprises the component of following parts by weight:
Parts by weight are 90 ferromagnetic oxide powder, the PA6 resin that parts by weight are 9, lubricant, dispersion agent and anti ultraviolet agent mixture.
This comparative example ferrite/polyamide compoiste material preparation method, comprises the steps:
A, the ferromagnetic oxide powder that is 90 by parts by weight, the PA6 resin that parts by weight are 9, lubricant, dispersion agent and anti ultraviolet agent mixture, put into Banbury mixer and carry out fully mixing 18 minutes, and 235 ℃ of melting temperatures, obtain polyamide compoiste material precursor;
B, puts into twin screw extruder melting mixing by this polyamide compoiste material precursor, extrudes, granulation, the screw diameter of twin screw extruder is 35mm, and the ratio of spiro rod length and diameter is 40: 1, and extrusion temperature is respectively 250 ℃ of district's temperature, two 270 ℃ of district's temperature, three 270 ℃ of district's temperature 260 ℃， tetra-district's temperature, 275 ℃ of head temperatures, extrude treatment time 1.5min, extruding processing pressure is 13MPa.
Comparative example two
This comparative example ferrite/polyamide compoiste material comprises the component of following parts by weight:
Parts by weight are 90 ferromagnetic oxide powder, the PA12 resin that parts by weight are 9, the oxidation inhibitor that parts by weight are 1, lubricant, dispersion agent and anti ultraviolet agent mixture.
This comparative example ferrite/polyamide compoiste material preparation method, comprises the steps:
A, the ferromagnetic oxide powder that is 90 by parts by weight, the PA12 resin that parts by weight are 9, parts by weight are 1 oxidation inhibitor, lubricant, dispersion agent and anti ultraviolet agent mixture, put into Banbury mixer and carry out fully mixing 12 minutes, 215 ℃ of melting temperatures, obtain polyamide compoiste material precursor;
B, puts into twin screw extruder melting mixing by this polyamide compoiste material precursor, extrudes, granulation, the screw diameter of twin screw extruder is 35mm, and the ratio of spiro rod length and diameter is 44: 1, and extrusion temperature is respectively 215 ℃ of district's temperature, two 235 ℃ of district's temperature, three 225 ℃ of district's temperature 225 ℃， tetra-district's temperature, 245 ℃ of head temperatures, extrude treatment time 1.5min, extruding processing pressure is 18MPa.
Performance test
Ferrite/polyamide compoiste material of above-described embodiment one, two, three and four, comparative example one and two is tested, and its performance evaluation mode and implementation standard are:
By completing material dry 3-6 hour in the convection oven of 100 ℃ of granulation, then dried material is carried out on magnetic field injection moulding machine to injection molding sample preparation, injection mold temperature control is at 100 ℃.Density is undertaken by ASTM D792 standard, and the test of specimen size 30mm * 30mm bending property is undertaken by ASTM D790 standard, and specimen size is 128mm * 13mm * 3.2mm, and rate of bending is 3mm/min, and span is 64mm; Melting index is pressed ASTM D1238 standard, adopts 275 ℃, and the load of 5kg is tested; Cantilever beam impact strength is undertaken by ASTM D256 standard, and specimen size is 63.5mm * 12.7mm * 4.2mm, and notch size is sample thickness 1/5th.Residual magnetic flux density, magnetic strength coercive force, HCJ and the test of maximum magnetic energy product number are undertaken by IEC 404-5 standard.Specimen size is the right cylinder of r=5mm * 10mm.
The over-all properties of ferrite/polyamide compoiste material of embodiment mono-to four and comparative example one and two is by density, flexural strength, modulus in flexure, the shock strength of test gained, residual magnetic flux density and maximum magnetic energy product numerical value are passed judgment on, and result is as shown in table 1.
The contrast of table 1 embodiment and comparative example
As can be seen from Table 1, along with the increase of ferromagnetic oxide powder, the flexural strength of matrix material and modulus in flexure be corresponding increase also, and melting index declines a little, wherein magnetic property increase is especially obvious, illustrates that increasing the content of ferromagnetic oxide powder is the effective ways that improve the magnetic property of matrix material; Under the condition of identical ferrite magnetic powder content, adding of cyclic polyester and coupling agent, has improved the physical and mechanical properties of matrix material greatly, with and melting index and magnetic property.
In sum, the polyamide compoiste material that the present invention is prepared, compares with conventional ferrite injecting magnetic polyamide material, has good mobility, and excellent physical and mechanical properties and magnetic property.Can meet household electrical appliances, computer, communication equipment, automobile, and the user demand of the high-end field such as war products, be particularly suitable for the design application of some large complicated injecting magnetic accessories.Embodiment of the present invention preparation method, simple to operate, with low cost, low for equipment requirements, be very suitable for suitability for industrialized production, have broad application prospects.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. ferrite/polyamide compoiste material, comprises the component of following parts by weight:
The mixture 0.5-2 of oxidation inhibitor, lubricant, dispersion agent, coupling agent and tinting material, the few ring-type polybutylene terephthalate of macromole that the molecular weight of described cyclic polyester is 1000-100000.
2. ferrite/polyamide compoiste material as claimed in claim 1, is characterized in that, described ferromagnetic oxide powder parts by weight are 80-90.
3. ferrite/polyamide compoiste material as claimed in claim 1, is characterized in that, the particle diameter of described ferromagnetic oxide powder is 0.1-10 micron.
4. ferrite/polyamide compoiste material as claimed in claim 1, is characterized in that, the parts by weight of described polymeric amide are 6-12.
5. ferrite/polyamide compoiste material as claimed in claim 1, is characterized in that, the parts by weight of described cyclic polyester are 3-6.
6. ferrite/polyamide compoiste material as claimed in claim 1, is characterized in that, described coupling agent is silane coupling agent.
7. ferrite/polyamide compoiste material preparation method, comprises the steps:
By the ferromagnetic oxide powder of following parts by weight, polymeric amide, cyclic polyester, coupling agent, oxidation inhibitor, lubricant, dispersion agent and tinting material are mixing, obtain polyamide compoiste material precursor;
Described ferrite/polyamide compoiste material precursor is extruded to processing, obtains polyamide compoiste material,
The mixture 0.5-2 of oxidation inhibitor, lubricant, dispersion agent, coupling agent and tinting material, the few ring-type polybutylene terephthalate of macromole that the molecular weight of described cyclic polyester is 1000-100000.
8. ferrite/polyamide compoiste material preparation method as claimed in claim 7, it is characterized in that, described extruding processed 210～250 ℃ of Yi district temperature, two 220～260 ℃ of district's temperature, three 220～260 ℃ of district's temperature 220～270 ℃， tetra-district's temperature, head temperature is 230～280 ℃, extruding the treatment time is 0.5～2 minute, extrudes under the condition of processing pressure 10～30MPa and carries out.
9. the application of the ferrite/polyamide compoiste material as described in claim 1-6 any one in household electrical appliances, computer, communication equipment, automobile and war products.
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| CN103374221A (en) * | 2012-04-19 | 2013-10-30 | 厦门兴音旗电子科技有限公司 | Preparation method of novel high-density composite material |
| CN104733149A (en) * | 2013-12-23 | 2015-06-24 | 昆山优磁电子有限公司 | Bendable magnetic core and manufacturing method thereof |
| CN104194325B (en) * | 2014-09-17 | 2016-09-28 | 中山大学 | A kind of preparation method of heat conduction injecting magnetic composite |
| CN105885415B (en) * | 2014-12-19 | 2019-03-22 | 浙江理创新材料有限公司 | A method of preparing high toughness polyphenyl thioether/ferrite composite material |
| CN105440673A (en) * | 2015-12-23 | 2016-03-30 | 江苏金发科技新材料有限公司 | Polyamide composite material and preparation method thereof |
| CN105949756A (en) * | 2016-05-24 | 2016-09-21 | 深圳市富恒新材料股份有限公司 | ABS (acrylonitrile-butadiene-styrene)/PA6 (polyamide 6) magnetic composite material and preparation method thereof |
| CN106553283A (en) * | 2016-09-27 | 2017-04-05 | 杭州信多达电器有限公司 | A kind of processing molding method of drum magnetic stripe |
| CN107964239A (en) * | 2016-10-20 | 2018-04-27 | 杭州千石科技有限公司 | A kind of composite material for preparing IH electromagnetic heating wire coil stents and preparation method thereof |
| CN106793725A (en) * | 2016-12-12 | 2017-05-31 | 浙江工业大学 | A kind of ferrite polymer composite and preparation method and application |
| CN109929246A (en) * | 2019-03-13 | 2019-06-25 | 金旸（厦门）新材料科技有限公司 | A kind of nylon material and its preparation method and application |
| CN110434821A (en) * | 2019-07-29 | 2019-11-12 | 张建新 | A kind of lineation device of plastic bead containing iron powder of the magnet driving of plane motion |
| CN110628016B (en) * | 2019-09-20 | 2021-10-29 | 浙江恒逸锦纶有限公司 | Cyclic polyester modified polyesteramide and preparation method thereof |
| CN114479435A (en) * | 2021-12-30 | 2022-05-13 | 昆山科运新型工程材料科技有限公司 | Preparation method of electromagnetic shielding magnetic-conducting polymer alloy and product thereof |
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