JPH069166B2 - Plastic magnet composition - Google Patents
Plastic magnet compositionInfo
- Publication number
- JPH069166B2 JPH069166B2 JP61015872A JP1587286A JPH069166B2 JP H069166 B2 JPH069166 B2 JP H069166B2 JP 61015872 A JP61015872 A JP 61015872A JP 1587286 A JP1587286 A JP 1587286A JP H069166 B2 JPH069166 B2 JP H069166B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- glass fiber
- magnetic powder
- plastic magnet
- 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.)
- Expired - Lifetime
Links
- 239000004033 plastic Substances 0.000 title claims description 9
- 229920003023 plastic Polymers 0.000 title claims description 9
- 239000000203 mixture Substances 0.000 title claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 13
- 239000006247 magnetic powder Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 7
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 7
- 239000012756 surface treatment agent Substances 0.000 claims description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 229910000077 silane Inorganic materials 0.000 claims description 5
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 4
- 230000035939 shock Effects 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 239000012744 reinforcing agent Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- -1 polyphenylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920006038 crystalline resin Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910000828 alnico Inorganic materials 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
- 125000003118 aryl group Chemical group 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- KYAZRUPZRJALEP-UHFFFAOYSA-N bismuth manganese Chemical compound [Mn].[Bi] KYAZRUPZRJALEP-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 102220259718 rs34120878 Human genes 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- H01F1/10—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
- H01F1/113—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Hard Magnetic Materials (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、射出成形後の成形品にひけ及びそりが少なく
またヒートショック性、耐摩耗性、難燃性に優れた高磁
力を有するポリフェニレンサルファイド樹脂（以下PPS
樹脂という）を基本マトリックスとするプラスチック磁
石組成物に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides a polyphenylene having a high magnetic force, which is excellent in heat shock resistance, wear resistance, and flame retardancy in a molded product after injection molding with less sink marks and warpage. Sulfide resin (hereinafter PPS
(Referred to as a resin) as a basic matrix.
従来よりポリエチレン、ポリプロピレン、ナイロン等の
結晶性樹脂を基本マトリックスとしたプラスチック磁石
は知られているが射出成形後の成形品のそり及びひけが
大きく、高度や寸法精度を要求される電気部品、モータ
部品等には切削加工等の必要なしには使用できなかっ
た。またPPS樹脂を基本マトリックスとしたプラスチッ
ク磁石も知られているがPPS樹脂単独では、他の結晶性
樹脂に比べると成形収縮率が小さく寸法安定性は若干改
良されるものの高度や寸法精度を要求される部品として
はまだまだ満足できるものではなく、また金属をインサ
ートした射出成形（以下インサート成形という）後、ヒ
ートショックテストを行うと成形品にクラックが発生す
るという問題があった。Plastic magnets that use crystalline resins such as polyethylene, polypropylene, and nylon as a basic matrix have been known for a long time, but the warpage and sink marks of molded products after injection molding are large, and electrical parts and motors that require high accuracy and dimensional accuracy. It could not be used for parts and the like without the need for cutting. Plastic magnets that use PPS resin as a basic matrix are also known, but PPS resin alone requires a high degree of accuracy and dimensional accuracy although it has a smaller molding shrinkage and a slight improvement in dimensional stability compared to other crystalline resins. However, there is a problem that cracks occur in the molded product when a heat shock test is performed after injection molding (hereinafter referred to as insert molding) in which a metal is inserted.
通常耐ヒートショック性向上の為にはガラス繊維等の補
強剤の充填が試みられるが、繊維状のものは著しく磁性
粉末の分散を阻害し樹脂の流動性が極めて悪くなるだけ
でなく磁力の低下をもたらすという欠点があった。In order to improve heat shock resistance, it is usually attempted to fill a reinforcing agent such as glass fiber, but the fibrous material remarkably hinders the dispersion of the magnetic powder and the fluidity of the resin is extremely deteriorated, and the magnetic force is lowered. There was a drawback that brought.
本発明は、従来できなかつた射出成形後の成形品のひけ
及びそりが少なくまたヒートショック性、耐摩耗性、難
燃性に優れ、高磁力を有する流動性の良好なプラスチッ
ク磁石組成物を得んとして研究した結果、粉末状ポリフ
ェニレンサルファイド樹脂１００重量部に対してフィラ
ーとして焼成アルミニウム３０〜１００重量部と、磁性
粉末に対してシラン系表面処理剤で前処理された磁性粉
末を全量に対して７０〜８０重量％と補強剤として使用
されるガラス繊維に対してシラン系表面処理剤で前処理
されたガラス繊維を１０〜２０重量部添加する事によ
り、目的とするプラスチック磁石組成物が得られるとの
知見を得、更にこの知見に基づき種々研究を進めて本発
明を完成するに至つたものである。その目的とする所
は、高度な寸法精度を要求される電気部品に使用できる
プラスチック磁石組成物を提供するにある。The present invention provides a plastic magnet composition having good flowability, which has a high degree of magnetic force and is excellent in heat shock resistance, abrasion resistance, flame retardancy, and has a small amount of sink mark and warpage of a molded product that has been impossible in the past. As a result, 100 to 100 parts by weight of powdered polyphenylene sulfide resin, 30 to 100 parts by weight of fired aluminum as a filler, and magnetic powder pretreated with a silane-based surface treatment agent to the magnetic powder are used with respect to the total amount. The target plastic magnet composition is obtained by adding 70 to 80% by weight and 10 to 20 parts by weight of glass fiber pretreated with a silane-based surface treatment agent to glass fiber used as a reinforcing agent. Based on this knowledge, various studies have been carried out, and the present invention has been completed. The object is to provide a plastic magnet composition that can be used for electric parts that require high dimensional accuracy.
本発明は、粉末状ポリフェニレンサルファイド樹脂１０
０重量部に対してフィラーとして焼成ケイ酸アルミニウ
ム３０重量部から１００重量部と、磁性粉末に対してシ
ラン系表面処理剤で前処理された磁性粉末を全量に対し
て７０〜８０重量％と補強剤として使用されるガラス繊
維にに対してシラン系表面処理剤で前処理されたガラス
繊維を１０〜２０重量部添加する事を特徴とするプラス
チック磁石組成物である。The present invention relates to a powdery polyphenylene sulfide resin 10
Reinforcing 30 to 100 parts by weight of burned aluminum silicate as a filler with respect to 0 parts by weight, and 70 to 80% by weight with respect to the total amount of magnetic powder pretreated with a silane-based surface treatment agent. It is a plastic magnet composition characterized in that 10 to 20 parts by weight of glass fiber pretreated with a silane-based surface treatment agent is added to glass fiber used as an agent.
本発明において磁性粉末としては形状が数μ程度に粉末
可能なな磁性材料であれば特に制限を受けず、例えばM0
6Fe2O3〔ＭはBa、Sr、Ca、Mg、Zn、Pbの１種又は２種以上〕
よりなるフェライト磁性粉末、RCO5〔ＲはSm、Pr、Ce、La
等の希土類元素の１種又は２種以上〕の希土土類コバル
ト磁性粉末、アルニコ磁性粉末、マンガン−ビスマス磁
性粉末が例示される。In the present invention, the magnetic powder is not particularly limited as long as it is a magnetic material whose shape can be powdered to about several μ, for example, M0
6Fe 2 O 3 [M is one or more of Ba, Sr, Ca, Mg, Zn, Pb]
Ferrite magnetic powder consisting of RCO 5 [R is Sm, Pr, Ce, La
One or more kinds of rare earth elements such as Rare Earth Cobalt Magnetic Powder, Alnico Magnetic Powder, and Manganese-Bismuth Magnetic Powder.
またこの磁性粉末及び補強剤としてのガラス繊維を高充
填可能にならしめるため用いられる表面処理としては、
シラン系カップリング剤が最適であり、その量は0.1〜
３重量％が使用される。Further, as the surface treatment used to make it possible to highly fill the magnetic powder and the glass fiber as the reinforcing agent,
The silane coupling agent is most suitable, and the amount is 0.1 ~
3% by weight is used.
本発明においてポリフェニレンサルファイド樹脂とは、
結晶性の芳香族ポリマーでありパラが置換されたベンゼ
ン環と硫黄原子の繰り返し単位からなる対称性の主鎖を
有する。またフィラーとして添加される焼成ケイ酸アル
ミニウムは射出成形後の成形品の寸法安定性に驚くべき
効果があり、その添加量としては３０重量部から１００
重量部である。また補強剤として添加されるガラス繊維
は、インサート成形時のヒートショツク性を大巾に向上
し、しかも従来の欠陥であったガラス繊維の添加による
磁性粉末の分散不良及び樹脂の流動性の低下は、ガラス
繊維を表面処理剤で前処理する事で改善されるのであ
る。In the present invention, the polyphenylene sulfide resin,
It is a crystalline aromatic polymer and has a symmetric main chain composed of a para-substituted benzene ring and a repeating unit of a sulfur atom. Further, the calcined aluminum silicate added as a filler has a surprising effect on the dimensional stability of a molded product after injection molding, and the addition amount thereof is 30 parts by weight to 100 parts by weight.
Parts by weight. Further, the glass fiber added as a reinforcing agent greatly improves the heat shock resistance at the time of insert molding, and the addition of the glass fiber, which has been a conventional defect, does not cause the poor dispersion of the magnetic powder and the deterioration of the fluidity of the resin. , It is improved by pretreating the glass fiber with a surface treatment agent.
本発明に従えば従来のプラスチック磁石組成物に比べPP
S樹脂を基本マトリックスとし焼成ケイ酸アルミニウム
を添加しているため射出成形後の寸法安定性、耐摩耗性
に優れており、さらに補強剤としてガラス繊維を添加し
ているため、インサート成形時のヒートショック性も向
上し、しかも従来の欠陥であるガラス繊維を添加する事
による磁性粉末の分散不良及び樹脂の流動性の低下は、
ガラス繊維を表面処理剤で処理する事でとり除かれるた
め、高い寸法精度をもつプラスチック組成物として工業
的に好適である。According to the present invention, PP
Since S resin is used as a basic matrix and calcined aluminum silicate is added, it has excellent dimensional stability and wear resistance after injection molding, and since glass fiber is added as a reinforcing agent, heat during insert molding The shock resistance is improved, and further, the conventional defect, that is, the poor dispersion of the magnetic powder and the deterioration of the fluidity of the resin due to the addition of the glass fiber are
Since it is removed by treating the glass fiber with a surface treatment agent, it is industrially suitable as a plastic composition having high dimensional accuracy.
第１表に示す組成のものをヘンシェルミキサーで撹拌混
合し、二軸同方向連続押出機でフィーダー側より３００
゜、３２０゜、３３０℃の温度で溶融混練し、造粒機で
造粒したペレットを2.5オンスの射出成形機でホッパー
側より３１０゜、３２０゜、３１０℃の温度で、摩耗試
験用には外径３０mm厚み３mmの円盤を作成し、成形品の
そり及びヒートショックテスト用の試験片は、直径２mm
長さ１３mmの円柱形のシャフトを金型内に入れたインサ
ート成形でで第１図に示す成形品を作成し、難燃性のテ
スト長さ１２７mm巾12.7mm厚み１mmのUL試験片を作成し
た。The composition shown in Table 1 was mixed by stirring with a Henschel mixer, and then 300 from the feeder side with a twin-screw, same-direction continuous extruder.
Pellets pelletized by melt-kneading at 320 °, 320 °, 330 ° C and granulated by a granulator are used for abrasion test at a temperature of 310 °, 320 °, 310 ° C from the hopper side by a 2.5 ounce injection molding machine. A disk with an outer diameter of 30 mm and a thickness of 3 mm was created, and the warpage of the molded product and the test piece for the heat shock test were 2 mm in diameter.
The insert shown in Fig. 1 was made by insert molding in which a cylindrical shaft of 13 mm in length was put in the mold, and a flame-retardant UL test piece of 127 mm long, 12.7 mm wide and 1 mm thick was prepared. .
（試験方法） １．耐摩耗テスト 鈴木式摩耗試験機 荷 重 １０kg/cm2 回転数 110rpm 時 間 ２時間 対金属 Ｓ５５Ｃ ２．ヒートショックテスト ｛（-40゜×1H）→（60゜×1H）｝×１０サイクル ３．難燃性テスト UL−94Ｖ−０テストに準拠する ４．成形品のそり 成形品の中心から１０mmの点をマイクロゲージの０とし
て、中心から２５mmの所に振れを測定した。(Test method) 1. Abrasion resistance test Suzuki type abrasion tester Load 10kg / cm 2 Rotation speed 110rpm 2 hours time Metal S55C 2. Heat shock test {(-40 ° × 1H) → (60 ° × 1H)} × 10 cycles 3. Flame retardance test Complies with UL-94V-0 test 4. Warpage of molded product A point of 10 mm from the center of the molded product was set as 0 of the micro gauge, and a deflection was measured at a position 25 mm from the center.
５．成形品の振れ成形品の中心から１０mmの点をマイク
ロゲージで測定した。5. Deflection of molded product A point 10 mm from the center of the molded product was measured with a micro gauge.
第１図は、直径２mm長さ１３mmの円柱形のシャフトを金
型内に入れたインサート成形後の成形品の断面図であ
る。FIG. 1 is a cross-sectional view of a molded product after insert molding in which a cylindrical shaft having a diameter of 2 mm and a length of 13 mm is put in a mold.
Claims (1)
００重量部に対してフィラーとして焼成ケイ酸アルミニ
ウム３０〜１００重量部とシラン系表面処理剤で前処理
された磁性粉末を全量に対して７０〜８０重量％とシラ
ン系表面処理剤で前処理されたガラス繊維を１０〜２０
重量部添加する事を特徴とするプラスチック磁石組成
物。1. A powdery polyphenylene sulfide resin 1
The magnetic powder pretreated with 30 to 100 parts by weight of baked aluminum silicate as a filler and 70 to 80% by weight with respect to the total amount of 100 parts by weight as a filler is pretreated with 70 to 80% by weight of the silane surface treatment agent. 10 to 20 glass fiber
A plastic magnet composition characterized by being added in parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61015872A JPH069166B2 (en) | 1986-01-29 | 1986-01-29 | Plastic magnet composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61015872A JPH069166B2 (en) | 1986-01-29 | 1986-01-29 | Plastic magnet composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62176103A JPS62176103A (en) | 1987-08-01 |
| JPH069166B2 true JPH069166B2 (en) | 1994-02-02 |
Family
ID=11900889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61015872A Expired - Lifetime JPH069166B2 (en) | 1986-01-29 | 1986-01-29 | Plastic magnet composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069166B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01128503A (en) * | 1987-11-13 | 1989-05-22 | Tokin Corp | Composite magnet composition and preparation thereof |
| US5017643A (en) * | 1990-03-20 | 1991-05-21 | Phillips Petroleum Company | Composition and process for making poly (arylene sulfide) resins reinforced with glass fibers |
| US5298318A (en) * | 1990-03-21 | 1994-03-29 | Phillips Petroleum Company | Poly(arylene sulfide) resins reinforced with glass fibers |
| JPH07102576B2 (en) * | 1990-03-22 | 1995-11-08 | 新神戸電機株式会社 | Manufacturing method of thermosetting resin molding material |
| DE69306481T2 (en) * | 1992-06-15 | 1997-04-30 | Kureha Chemical Ind Co Ltd | Resin bonded magnetic composition and castings therefrom |
-
1986
- 1986-01-29 JP JP61015872A patent/JPH069166B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62176103A (en) | 1987-08-01 |
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