JPS63218759A - Plastic magnetic composition - Google Patents
Plastic magnetic compositionInfo
- Publication number
- JPS63218759A JPS63218759A JP61308341A JP30834186A JPS63218759A JP S63218759 A JPS63218759 A JP S63218759A JP 61308341 A JP61308341 A JP 61308341A JP 30834186 A JP30834186 A JP 30834186A JP S63218759 A JPS63218759 A JP S63218759A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- composition
- weight
- polyamide
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 66
- 229920003023 plastic Polymers 0.000 title claims abstract description 30
- 239000004033 plastic Substances 0.000 title claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 26
- 150000003839 salts Chemical class 0.000 claims abstract description 25
- 229920006122 polyamide resin Polymers 0.000 claims abstract description 17
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 7
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 229920002292 Nylon 6 Polymers 0.000 abstract description 7
- 229910000464 lead oxide Inorganic materials 0.000 abstract description 6
- 239000007822 coupling agent Substances 0.000 abstract description 5
- -1 lead sterate Chemical class 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 3
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 abstract description 2
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 description 15
- 238000002347 injection Methods 0.000 description 12
- 239000007924 injection Substances 0.000 description 12
- 239000008188 pellet Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 238000000465 moulding Methods 0.000 description 7
- UKWUOTZGXIZAJC-UHFFFAOYSA-N 4-nitrosalicylic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1O UKWUOTZGXIZAJC-UHFFFAOYSA-N 0.000 description 5
- UQLDLKMNUJERMK-UHFFFAOYSA-L di(octadecanoyloxy)lead Chemical compound [Pb+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O UQLDLKMNUJERMK-UHFFFAOYSA-L 0.000 description 5
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 5
- 229920000299 Nylon 12 Polymers 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229910000077 silane Inorganic materials 0.000 description 4
- 229920002302 Nylon 6,6 Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 2
- 239000004953 Aliphatic polyamide Substances 0.000 description 2
- 229920000572 Nylon 6/12 Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 229920003231 aliphatic polyamide Polymers 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- FTQWRYSLUYAIRQ-UHFFFAOYSA-N n-[(octadecanoylamino)methyl]octadecanamide Chemical class CCCCCCCCCCCCCCCCCC(=O)NCNC(=O)CCCCCCCCCCCCCCCCC FTQWRYSLUYAIRQ-UHFFFAOYSA-N 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 229920002647 polyamide Polymers 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
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- 229910001047 Hard ferrite Inorganic materials 0.000 description 1
- 101000852483 Homo sapiens Interleukin-1 receptor-associated kinase 1 Proteins 0.000 description 1
- 102100036342 Interleukin-1 receptor-associated kinase 1 Human genes 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- NOZAQBYNLKNDRT-UHFFFAOYSA-N [diacetyloxy(ethenyl)silyl] acetate Chemical compound CC(=O)O[Si](OC(C)=O)(OC(C)=O)C=C NOZAQBYNLKNDRT-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- HIAAVKYLDRCDFQ-UHFFFAOYSA-L calcium;dodecanoate Chemical compound [Ca+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O HIAAVKYLDRCDFQ-UHFFFAOYSA-L 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003484 crystal nucleating agent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PFBWBEXCUGKYKO-UHFFFAOYSA-N ethene;n-octadecyloctadecan-1-amine Chemical compound C=C.CCCCCCCCCCCCCCCCCCNCCCCCCCCCCCCCCCCCC PFBWBEXCUGKYKO-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- BJZBHTNKDCBDNQ-UHFFFAOYSA-L magnesium;dodecanoate Chemical compound [Mg+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O BJZBHTNKDCBDNQ-UHFFFAOYSA-L 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/08—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/083—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together in a bonding agent
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、磁性金属粉末とポリアミド樹脂とを特徴と
する特定のプラスチック磁性組成物に係るものであり、
そして、この発明の組成物からなる原料ペレットから、
射出成形などによって、高い耐熱性、機械特性などを保
持していると共に、磁性特性（磁性金属粉末の配向性）
の優れた、前記組成物で構成されているプラスチック磁
性成形体を、容易に成形することができ、その結果、種
々のプラスチックマグネットなどの製造に利用すること
ができる。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a specific plastic magnetic composition characterized by magnetic metal powder and polyamide resin,
From the raw material pellets made of the composition of this invention,
Through injection molding, etc., it maintains high heat resistance and mechanical properties, as well as magnetic properties (orientation of magnetic metal powder).
A plastic magnetic molded body composed of the above-mentioned composition having excellent properties can be easily molded, and as a result, it can be used for manufacturing various plastic magnets and the like.
近年、従来の焼結磁石に代わって、プラスチック樹脂（
例えば、ポリアミド樹脂など）と磁性金属粉末とを主成
分とするプラスチック磁性組成物から射出成形などによ
って形成されたプラスチック磁石が、モーター、スイッ
チ等の電気部品に広く用いられるようになりつつある。In recent years, plastic resin (
Plastic magnets, which are formed by injection molding or the like from a plastic magnetic composition whose main components are a polyamide resin (for example, polyamide resin, etc.) and magnetic metal powder, are becoming widely used in electrical parts such as motors and switches.
このプラスチック磁石は、磁性金属粉末の配合量と磁気
特性とが相関を有するために、高い磁気特性を得ようと
すると、磁性金属粉末を高濃度に充填させたプラスチッ
ク磁性組成物を使用する必要があったが、そのように磁
性金属粉末の配合量を多くすると、そのようなプラスチ
ック磁性組成物は、射出成形などの溶融時の流動性が極
めて低下してたり、また、その溶融時の組成物中の磁性
金属粉末の配向性も低下するので、射出成形をすること
さえできないことがあったり、例え、射出成形が可能で
あったとしても、得られた射出成形品の磁気特性が極め
て低下していたり、射出成形品の外観（表面性）が極め
て不良であったり、さらに、射出成形品が機械的に脆く
なっていたりという問題があった。In this plastic magnet, there is a correlation between the amount of magnetic metal powder mixed and the magnetic properties, so in order to obtain high magnetic properties, it is necessary to use a plastic magnetic composition filled with magnetic metal powder at a high concentration. However, when the amount of magnetic metal powder blended is increased, the fluidity of such plastic magnetic compositions during melting during injection molding etc. is extremely reduced, and the composition during melting becomes difficult. Because the orientation of the magnetic metal powder inside is also reduced, injection molding may not even be possible, and even if injection molding is possible, the magnetic properties of the resulting injection molded product will be extremely poor. There have been problems in that the appearance (surface quality) of the injection molded product is extremely poor, and that the injection molded product is mechanically brittle.
前述のプラスチック磁性組成物における問題点を解決す
るための手段として、ポリアミドにステアリン酸金属塩
や、ビスアミド化合物を添加するという方法が提案され
ているが、そのような方法では、ステアリン酸金属塩や
ビスアミド化合物が射出成形時に成形品の表面に滲出（
ブリード）してきて、成形品の表面の外観を著しく低下
させるという不都合が生じるのである。As a means to solve the above-mentioned problems with plastic magnetic compositions, a method of adding a metal stearate or a bisamide compound to polyamide has been proposed. Bisamide compounds ooze out onto the surface of molded products during injection molding (
This causes the problem that the surface appearance of the molded product is significantly deteriorated due to bleeding.
この発明の目的は、前述の公知のプラスチック磁石成形
用のプラスチック磁性組成物が有していた種々の問題点
、特に、高い配合割合で磁性金属粉末を含有するプラス
チック磁性組成物において、その射出成形時の熔融流動
性が悪く、磁気特性の優れたプラスチック磁性成形体が
再現性よく容易に成形できない、あるいは、流動性を改
良するための添加剤などが表面に滲出（ブリード）した
成形品しか得られないという問題点を、解決することで
ある。The purpose of the present invention is to solve the various problems that the above-mentioned known plastic magnetic compositions for molding plastic magnets had, particularly in plastic magnetic compositions containing magnetic metal powder at a high mixing ratio, by injection molding of the plastic magnetic compositions. Plastic magnetic moldings with excellent magnetic properties cannot be easily molded with good reproducibility due to poor melt flowability, or molded products can only be obtained with additives to improve fluidity oozing (bleed) on the surface. The aim is to solve the problem of not being able to
この発明者らは、前記の公知のプラスチック磁性組成物
が有していた問題点を解決するために、鋭意研究した結
果、ポリアミド樹脂に、磁性金属粉末と共に、シランカ
ップリング剤と脂肪族酸金属塩と金属酸化物との複塩と
を配合した特定の組成のプラスチック磁性組成物は、前
述の溶融時の流動性に優れ、射出成形時などの溶融時の
磁気金属粉末の配向性にも優れているので、そのプラス
チック磁性組成物から得られた成形品が、高い耐熱性、
機械的特性を保持していると共に、優れた磁気特性を有
していて、しかも、その成形品の表面に添加剤のブリー
ドアウトがなく成形品の表面の外観性が優れていること
を見い出し、この発明を完成した。In order to solve the problems that the above-mentioned known plastic magnetic compositions had, the inventors conducted extensive research and found that they added a silane coupling agent and an aliphatic acid metal to a polyamide resin together with a magnetic metal powder. A plastic magnetic composition with a specific composition containing a double salt of a salt and a metal oxide has excellent fluidity when melted as described above, and also has excellent orientation of magnetic metal powder when melted during injection molding. As a result, molded products obtained from the plastic magnetic composition have high heat resistance,
We have discovered that the molded product retains its mechanical properties and has excellent magnetic properties, and that there is no additive bleed-out on the surface of the molded product, and the surface appearance of the molded product is excellent. completed this invention.
すなわち、この発明は、
（ａ） 磁性金属粉末１００重量部、世） ポリアミ
ド樹脂５〜５０重量部、（Ｃ１シランカップリング剤０
．０５〜５重量部、および、
（ｄ） 脂肪族酸金属塩と金属酸化物との複塩０．０
１〜３重量部
からなるブラ、スチック磁性組成物に関する。That is, the present invention comprises: (a) 100 parts by weight of magnetic metal powder, 5 to 50 parts by weight of polyamide resin, (0 parts by weight of C1 silane coupling agent)
．． 05 to 5 parts by weight, and (d) 0.0 double salt of aliphatic acid metal salt and metal oxide.
The present invention relates to a bra, stick magnetic composition comprising 1 to 3 parts by weight.
この発明で使用するポリアミド樹脂は、例えば、ポリア
ミド６、ポリアミド６６、ポリアミド１１、ポリアミド
１２、ポリアミド６１０などの脂肪族ポリアミドを好適
に挙げられるが、ポリアミド６／６６、ポリアミド６／
１２、ポリアミド６６／１２などの脂肪族ポリアミド系
共重合体、あるいは、前記の種々のポリアミドのブレン
ド物でもよく、さらに、ポリアミド樹脂を、少なくとも
５０重量％以上、特に好ましくは６０重量％以上、さら
に好ましくは８０重量％以上含有する「前記のポリアミ
ド樹脂と、芳香族ポリアミド樹脂、ポリエステル樹脂、
ＡＢＳ樹脂、ＰＰＯ樹脂、ポリプロピレン樹脂などの他
のプラスチック樹脂とのブレンド物Ｊであってもよい。Preferred examples of the polyamide resin used in this invention include aliphatic polyamides such as polyamide 6, polyamide 66, polyamide 11, polyamide 12, and polyamide 610, but polyamide 6/66, polyamide 6/
12. It may be an aliphatic polyamide copolymer such as polyamide 66/12, or a blend of the various polyamides mentioned above. Furthermore, the polyamide resin may be at least 50% by weight or more, particularly preferably 60% by weight or more, and Preferably containing 80% by weight or more of the above-mentioned polyamide resin, aromatic polyamide resin, polyester resin,
It may also be a blend J with other plastic resins such as ABS resin, PPO resin, and polypropylene resin.
この発明では、ポリアミド樹脂としては、特に、ポリア
ミド６、ポリアミド１２、あるいはポリアミド６／１２
を、８０重量％以上含有するポリアミド樹脂が好適であ
る。In this invention, the polyamide resin is particularly polyamide 6, polyamide 12, or polyamide 6/12.
A polyamide resin containing 80% by weight or more is suitable.
前記のカップリング剤としては、γ−アミノプロピルー
トリエトキシシラン、Ｎ−β−（アミノエチル）−γ−
アミノプロピルーメチルジメトキシシラン、Ｎ−β−（
アミノエチル）−γ−アミノプロピルートリメトキシシ
ラン、Ｎ−β−（Ｎ−ビニルベンジルアミノエチル）−
γ−アミノプロピルートリメトキシシランなどのアミノ
シランカップリング剤、Ｔ−グリシドキシ−プロビルト
リメトキシシランなどのエポキシシランカップリング剤
、ビニルトリス（メトキシニオキシ）シラン、ビニルト
リメトキシシラン、ビニルトリアセトキシシランなどの
ビニルシランカップリング剤などを挙げることができ、
この発明では、特に前述のアミノシランカップリング剤
が好適である。As the coupling agent, γ-aminopropyltriethoxysilane, N-β-(aminoethyl)-γ-
Aminopropyl-methyldimethoxysilane, N-β-(
aminoethyl)-γ-aminopropyltrimethoxysilane, N-β-(N-vinylbenzylaminoethyl)-
Aminosilane coupling agents such as γ-aminopropyltrimethoxysilane, epoxysilane coupling agents such as T-glycidoxy-propyltrimethoxysilane, vinyltris(methoxynioxy)silane, vinyltrimethoxysilane, vinyltriacetoxysilane, etc. vinyl silane coupling agents, etc.
In this invention, the above-mentioned aminosilane coupling agent is particularly suitable.
前記の脂肪族酸金属塩と金属酸化物との複塩は、ステア
リン酸、ラウリン酸、ミリスチン酸、パルミチン酸、ｎ
−ノナデシレン酸などの炭素数８以上有する高級脂肪酸
金属塩（例えば、前記脂肪族酸の鉛、アルミニウムなど
の遷位金属塩）と、酸化鉛、酸化アルミニウムなどの■
又は■族の金属酸化物との複塩であればよく、特に、酸
化鉛・ステアリン酸鉛複塩を好適に挙げることができ、
また、この発明では、前記の複塩に加えて、ラウリン酸
バリウム、ラウリン酸カルシウム、ラウリン酸マグネシ
ウム、ステアリン酸バリウムなどの「炭素数８以上有す
る高級脂肪族アルカリ土類金属塩」を少量併用してもよ
い。The double salts of aliphatic acid metal salts and metal oxides include stearic acid, lauric acid, myristic acid, palmitic acid, n
- Metal salts of higher fatty acids having 8 or more carbon atoms such as nonadecylenic acid (e.g. transition metal salts of the aliphatic acids such as lead and aluminum) and -
or a double salt with a group II metal oxide, and particularly preferred are lead oxide/lead stearate double salts,
Further, in this invention, in addition to the above-mentioned double salt, a small amount of "higher aliphatic alkaline earth metal salt having 8 or more carbon atoms" such as barium laurate, calcium laurate, magnesium laurate, barium stearate, etc. Good too.
前記の磁性金属粉末としては、プラスチック磁石に使用
することができる公知の磁性金属粉末であれば、どのよ
うな種類の磁性金属粉末であってもよく、例えば、粒子
径が、０．５〜１０μｍ１特に１．０〜５．０ｃｒｍ程
度であるバリウムフェライト、ストロンチウムフェライ
トなどのハードフェライト粉末、またはその混合物を使
用することが好ましい。The magnetic metal powder may be any kind of magnetic metal powder as long as it is a known magnetic metal powder that can be used in plastic magnets, for example, a particle size of 0.5 to 10 μm. In particular, it is preferable to use hard ferrite powder such as barium ferrite and strontium ferrite having a particle diameter of about 1.0 to 5.0 crm, or a mixture thereof.
この発明では、前記のポリアミド樹脂の使用量が多くな
り過ぎると、磁性金属粉末の添加量が相対的に少なくな
り、磁気特性が低下するので適当ではなく、また、ポリ
アミド樹脂の使用量が少なくり過ぎると、溶融時の流動
性が低下し、射出成形するのが困難になると同時に、得
られた成形品の外観や機械的特性が損なわれるので適当
ではない。In this invention, if the amount of the polyamide resin used is too large, the amount of magnetic metal powder added will be relatively small and the magnetic properties will deteriorate, which is not appropriate. If it is too high, fluidity during melting will decrease, making injection molding difficult, and at the same time impairing the appearance and mechanical properties of the resulting molded product, which is not suitable.
また、この発明では、前記のシランカップリング剤の使
用量が多くなり過ぎると、混線性が低下したり、成形品
の表面にシランカップリング剤やその分解物が滲出（ブ
リード）して、外観を悪くしたりするので適当ではなく
、また、シランカップリング剤の使用量が少なくなり過
ぎると、機械的特性と磁気特性が低下するので適当では
ない。In addition, in this invention, if the amount of the silane coupling agent used is too large, the cross-talk property may decrease, or the silane coupling agent or its decomposition products may ooze (bleed) on the surface of the molded product, causing the appearance This is not appropriate because it may impair the properties of the silane coupling agent, and if the amount of the silane coupling agent used is too small, it is not appropriate because the mechanical properties and magnetic properties will deteriorate.
さらに、この発明では、前記の複塩の使用量が多くなり
過ぎると、機械的特性が低下したり、成形品の表面に複
塩やその分解物が滲出（ブリード）して、外観を悪くし
たりするので適当ではなく、また、複塩の使用量が少な
くなり過ぎると、溶融時の流動性が低下し、射出成形す
るのが困難になると同時に得られた成形品の磁気特性も
低下するので適当ではない。Furthermore, in this invention, if the amount of the double salt used is too large, the mechanical properties may deteriorate, and the double salt or its decomposition products may bleed onto the surface of the molded product, resulting in poor appearance. In addition, if the amount of double salt used is too small, the fluidity during melting will decrease, making injection molding difficult, and at the same time, the magnetic properties of the resulting molded product will also decrease. It's not appropriate.
この発明では、前記の各成分の組成比が特に好ましい組
成物としては、
（ａ） 磁性金属粉末１００重量部、［ｂ） ポリ
アミド樹脂６〜３０重量部、（ｅ） シランカフプリ
ング剤０．１〜３重量部、および、
＋ｄ） 脂肪族酸金属塩と金属酸化物との複塩０．０
５〜２重量部
からなるプラスチック磁性組成物である。In this invention, a composition having particularly preferable composition ratios of each of the above components includes (a) 100 parts by weight of magnetic metal powder, [b) 6 to 30 parts by weight of polyamide resin, and (e) 0.1 part by weight of silane cuff pulling agent. ~3 parts by weight, and +d) 0.0 double salt of aliphatic acid metal salt and metal oxide
It is a plastic magnetic composition consisting of 5 to 2 parts by weight.
前記の組成比の組成物は、印加成形などの射出成形にお
いて、組成物の熔融状態での流動性が極めて高く良好で
あるので、磁性金属粉末が高配合されているにもかかわ
らず、磁性金属粉末が成形品の末端まで均一に充填され
た磁性成形品が得られると共に、前記の印加成形時に、
熔融状態である組成物中の磁性金属粉末の配向性が高く
なるので、成形品の磁気特性が向上する。The composition having the above composition ratio has extremely high fluidity in a molten state and is suitable for injection molding such as impression molding. A magnetic molded product can be obtained in which the powder is uniformly filled to the end of the molded product, and during the above-mentioned impression molding,
Since the magnetic metal powder in the composition in a molten state is highly oriented, the magnetic properties of the molded article are improved.
また、前記の組成物から得られた成形品は、その機械的
物性が優れていると共に、その表面の外観が優れている
。Moreover, the molded article obtained from the above composition has excellent mechanical properties and an excellent surface appearance.
この発明の組成物は、この種の組成物に一般的に使用さ
れる添加剤、例えば、酸化、熱または紫外線などによる
劣化に対する安定剤、結晶核剤、可塑剤、難燃剤、滑剤
などの添加剤を適当な割合で配合することもできる。The compositions of the invention may contain additives commonly used in compositions of this type, such as stabilizers against deterioration due to oxidation, heat or ultraviolet radiation, crystal nucleating agents, plasticizers, flame retardants, lubricants, etc. Agents can also be blended in appropriate proportions.
以下、実施例および比較例によりこの発明をさらに詳し
く説明する。This invention will be explained in more detail below with reference to Examples and Comparative Examples.
実施例１
平均粒子径１．２μｍのストロンチウムフェライト１０
０重量部に、γ−アミノプロピルートリエトキシシラン
（以下、シランカップリング剤−Ａと言う）１．０重量
部を、ヘンシェルミキサーで混合した後、その混合物に
、パウダー状のナイロン＝６（宇部興産＠製のポリアミ
ド６、商品名；ＰｌｏｌｌＦ）１３．４重量部と、酸化
鉛・ステアリン酸鉛の複塩およびラウリン酸バリウムの
混合物（組成比 約１；１）０．２８重量部とを加え、
再度、ヘンシェルミキサーで混合して、プラスチッり磁
性組成物を調製し、その組成物を一軸押出機を使用して
、２５０℃の押出温度で紐状に押出して、前記の混合物
のペレットを製造した。Example 1 Strontium ferrite 10 with an average particle size of 1.2 μm
0 parts by weight and 1.0 parts by weight of γ-aminopropyltriethoxysilane (hereinafter referred to as silane coupling agent-A) using a Henschel mixer. 13.4 parts by weight of polyamide 6 manufactured by Ube Industries@, trade name: Ploll F) and 0.28 parts by weight of a mixture of lead oxide/lead stearate double salt and barium laurate (composition ratio approximately 1:1). In addition,
A plastic magnetic composition was prepared by mixing again using a Henschel mixer, and the composition was extruded into a string using a single screw extruder at an extrusion temperature of 250°C to produce pellets of the mixture. .
その組成物のペレットを、３個取りの金型を有する射出
、成形機に供給し、樹脂温度；２９０℃、金型温度；８
０℃、射出圧力８５０ｋｇ／ｃｄの成形条件で、所定の
試験片（ＡＳＴＭ Ｄ７９０、ＡＳＴＭ Ｄ２５６
、ＡＳＴＭ Ｄ６４８に規定された試験片）に、射出
成形して、その射出成形性、成形品の表面の外観、その
試験片の機械物性などをＡＳＴＭ Ｄ７９０、ＡＳＴ
Ｍ Ｄ２５６、及びＡＳＴＭ Ｄ６４８に準じて測
定した。The pellets of the composition were supplied to an injection molding machine having a three-cavity mold, resin temperature: 290°C, mold temperature: 8.
The specified test pieces (ASTM D790, ASTM D256
, a test piece specified in ASTM D648) is injection molded, and its injection moldability, surface appearance of the molded product, mechanical properties of the test piece, etc. are evaluated using ASTM D790, AST.
Measured according to MD256 and ASTM D648.
なお、前記の組成物の流動性については、幅：１０龍、
厚さ１鶴である馬蹄形流動長さ測定金型（以下：Ｌ／Ｔ
測定金型と言う）を備えた射出成形機を使用し、樹脂温
度；２８０℃、金型温度；８０℃、射出圧力；８００ｋ
ｇ／ａＪ、又は１２００に、 ／ ｃｄの成形条件で、
射出成形を行い、前記組成物の流動長さを測定すること
で行った。In addition, regarding the fluidity of the above composition, width: 10 dragons,
Horseshoe-shaped flow length measurement mold with a thickness of 1 crane (hereinafter: L/T
Using an injection molding machine equipped with a measuring mold (referred to as a measurement mold), resin temperature: 280°C, mold temperature: 80°C, injection pressure: 800k.
g/aJ, or 1200/cd molding conditions,
This was carried out by injection molding and measuring the flow length of the composition.
また、組成物の成形品の磁性特性の測定は、前記組成物
のペレットを、１５００００ｅの磁場中、樹脂温度；２
８０℃、金型温度；８０℃、射出圧力； ８５０ ｋｇ
／ｃｄの成形条件で、射出成形して、円柱状の試験片（
厚さ；１０ｍｍ、直径２０ｎ）を作成し、その試験片の
磁気特性を、直流磁化特性自動記録装置（横河北辰電気
住荀製）で測定することにより行った。In addition, to measure the magnetic properties of a molded article of the composition, pellets of the composition were placed in a magnetic field of 150,000 e at a resin temperature of 2
80℃, mold temperature; 80℃, injection pressure; 850 kg
A cylindrical test piece (
A specimen (thickness: 10 mm, diameter 20 nm) was prepared, and the magnetic properties of the test piece were measured using a DC magnetization characteristic automatic recording device (manufactured by Yokogawa Hokushin Denki Shushin).
前述の試験の結果を第１表に示す。The results of the aforementioned tests are shown in Table 1.
実施例２
磁性金属材料１００重量部に対して、ナイロン６の使用
量を１２．１重量部としたほかは実施例１と同様にして
、プラスチック磁性組成物を関製し、その組成物のペレ
ットを作成した。Example 2 A plastic magnetic composition was prepared in the same manner as in Example 1 except that the amount of nylon 6 used was 12.1 parts by weight based on 100 parts by weight of the magnetic metal material, and pellets of the composition were prepared. It was created.
その組成物から実施例１と同様にして射出成形された成
形品について、実施例１と同様の試験を行った。その結
果を第１表に示す。The same tests as in Example 1 were conducted on a molded article injection molded from the composition in the same manner as in Example 1. The results are shown in Table 1.
実施例３
ポリアミド樹脂をポリアミド１２に代えたほかは、実施
例２と同様にして、プラスチック磁性組成物を調製し、
その組成物のペレットを作成した。Example 3 A plastic magnetic composition was prepared in the same manner as in Example 2, except that the polyamide resin was replaced with polyamide 12,
Pellets of the composition were made.
その組成物から実施例１と同様にして射出成形された成
形品について、実施例１と同様の試験を行った。その結
果を第１表に示す。The same tests as in Example 1 were conducted on a molded article injection molded from the composition in the same manner as in Example 1. The results are shown in Table 1.
比較例１および３
酸化鉛・ステアリン酸鉛の複塩およびラウリン酸バリウ
ムの混合物（組成比 約ｌ：１）を全く使用しないほか
は、実施例１または実施例３と同様にして、プラスチッ
ク磁性組成物を調製し、その組成物のペレットを作成し
た。Comparative Examples 1 and 3 A plastic magnetic composition was prepared in the same manner as in Example 1 or Example 3, except that the mixture of lead oxide/lead stearate double salt and barium laurate (composition ratio approximately 1:1) was not used at all. and pellets of the composition were made.
その組成物から実施例１と同様にして射出成形された成
形品について、実施例１と同様の試験を行った。その結
果を第１表に示す。The same tests as in Example 1 were conducted on a molded article injection molded from the composition in the same manner as in Example 1. The results are shown in Table 1.
比較例２および５
酸化鉛・ステアリン酸鉛の複塩およびラウリン酸バリウ
ムの混合物（組成比 約１：１）の代わりに、第１表に
示す量のエチレンビスステアリルアミド（ライオンアク
ゾ社製、製品名；アーモワックスＥ、Ｂ、Ｓ）を使用し
、ナイロン樹脂の使用量を第１表のように代えたほかは
、実施例１または実施例３と同様にして、プラスチック
磁性組成物を調製し、その組成物のペレ７）を作成した
。Comparative Examples 2 and 5 Instead of the mixture of lead oxide/lead stearate double salt and barium laurate (composition ratio approximately 1:1), ethylene bisstearylamide (manufactured by Lion Akzo, product) was used in the amount shown in Table 1. A plastic magnetic composition was prepared in the same manner as in Example 1 or Example 3, except that Armowax E, B, S) was used and the amount of nylon resin was changed as shown in Table 1. , Pelle 7) of the composition was prepared.
その組成物から実施例１と同様にして射出成形された成
形品について、実施例１と同様の試験を行った。その結
果を第１表に示す。The same tests as in Example 1 were conducted on a molded article injection molded from the composition in the same manner as in Example 1. The results are shown in Table 1.
比較例３
酸化鉛・ステアリン酸鉛の複塩およびラウリン酸バリウ
ムの混合物（組成比 約１＝１）の代わりに、第１表に
示す量のステアリン酸亜鉛を使用し、ナイロン６の使用
量を第１表に示す量に代えたほかは、実施例１と同様に
して、プラスチック磁性組成物を調製し、その組成物の
ペレットを作成した。Comparative Example 3 Instead of a mixture of lead oxide/lead stearate double salt and barium laurate (composition ratio approximately 1=1), zinc stearate was used in the amount shown in Table 1, and the amount of nylon 6 used was A plastic magnetic composition was prepared in the same manner as in Example 1, except that the amounts shown in Table 1 were used, and pellets of the composition were made.
その組成物から実施例１と同様にして射出成形された成
形品について、実施例１と同様の試験を行った。その結
果を第１表に示す。The same tests as in Example 1 were conducted on a molded article injection molded from the composition in the same manner as in Example 1. The results are shown in Table 1.
〔本発明の作用効果〕
この発明のプラスチック磁性組成物は、特定の高級脂肪
酸金属塩と金属酸化物との複塩、およびシランカンプリ
ング剤を含有している「ポリアミド樹脂と磁性金属粉末
との組成物」であるので、印可成形などの射出成形にお
いて、組成物の溶融状態での流動性が極めて高く良好で
あり、磁性金属粉末が高配合されているにもかかわらず
、磁性金属粉末が成形品の末端まで均一に充填された磁
性成形品が得られると共に、前記の印加成形時に、熔融
状態である組成物中の磁性金属粉末の配向性が高くなり
、成形品の磁気特性が向上する。[Operations and Effects of the Present Invention] The plastic magnetic composition of the present invention is composed of a polyamide resin and magnetic metal powder containing a double salt of a specific higher fatty acid metal salt and a metal oxide, and a silane camping agent. In injection molding such as pressure molding, the composition has extremely high fluidity in the molten state, and even though it contains a high amount of magnetic metal powder, it is difficult to mold the magnetic metal powder. A magnetic molded article can be obtained that is uniformly filled to the end of the article, and the orientation of the magnetic metal powder in the molten composition during the above-mentioned impression molding is increased, improving the magnetic properties of the molded article.
また、前記の組成物から得られた成形品は、その機械的
物性が優れていると共に、その表面の外観が優れている
。Moreover, the molded article obtained from the above composition has excellent mechanical properties and an excellent surface appearance.
Claims (1)
重量部、シランカップリング剤０．０５〜５重量部、お
よび、脂肪族酸金属塩と金属酸化物との複塩０．０１〜
３重量部からなるプラスチック磁性組成物。100 parts by weight of magnetic metal powder, 5 to 50 parts by weight of polyamide resin
parts by weight, 0.05 to 5 parts by weight of a silane coupling agent, and 0.01 to 0.01 parts by weight of a double salt of an aliphatic acid metal salt and a metal oxide.
A plastic magnetic composition consisting of 3 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61308341A JPS63218759A (en) | 1986-12-26 | 1986-12-26 | Plastic magnetic composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61308341A JPS63218759A (en) | 1986-12-26 | 1986-12-26 | Plastic magnetic composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63218759A true JPS63218759A (en) | 1988-09-12 |
Family
ID=17979892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61308341A Pending JPS63218759A (en) | 1986-12-26 | 1986-12-26 | Plastic magnetic composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63218759A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104130378A (en) * | 2014-08-13 | 2014-11-05 | 山东一诺威聚氨酯股份有限公司 | Silane modified double-component polyurethane plastic size for courts and preparation method thereof |
-
1986
- 1986-12-26 JP JP61308341A patent/JPS63218759A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104130378A (en) * | 2014-08-13 | 2014-11-05 | 山东一诺威聚氨酯股份有限公司 | Silane modified double-component polyurethane plastic size for courts and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0204400A1 (en) | Polypropylene-base resin composition | |
| JPH0830137B2 (en) | Polyacetal resin composition | |
| JPS63218759A (en) | Plastic magnetic composition | |
| JP3438992B2 (en) | Flame retardant polyester resin composition | |
| EP0487271A2 (en) | Thin-walled molded product made of polybutylene terephthalate resin | |
| JP2745573B2 (en) | High flow plastic magnetic composition | |
| JPH101594A (en) | Polyoxymethylene composition | |
| JPH03747A (en) | Fiber-reinforced thermoplastic resin composition | |
| JPS6411217B2 (en) | ||
| JPH01135866A (en) | Polyphenylene sulfide molding material having improved hue stability | |
| JPH05239354A (en) | Poly(arylene sulfide) composition | |
| JPS58174440A (en) | Polyamide resin composition | |
| JP3080713B2 (en) | Flame retardant polyamide resin pellets for injection molding | |
| JP2668736B2 (en) | Heat resistant polyamide resin composition | |
| JP3696364B2 (en) | Polyacetal resin composition | |
| KR930008196B1 (en) | Polyphenylene sulfide resin composition | |
| JPS61179506A (en) | Magnetic material composition | |
| JPH01318068A (en) | Polyarylene sulfide resin composition | |
| JP2937378B2 (en) | Composition for synthetic resin magnet | |
| JP2607443B2 (en) | Thermoplastic resin composition | |
| JPS62246958A (en) | Vehicle member composed of polyamide | |
| JPH08217970A (en) | Plastic magnetic composition | |
| JPH0264158A (en) | Polyarylene sulfide resin composition | |
| JPH0359050A (en) | Magnetic material composition | |
| JPH09180932A (en) | Composition for plastic magnet |