JPS6176550A - Composite material composition - Google Patents
Composite material compositionInfo
- Publication number
- JPS6176550A JPS6176550A JP19847784A JP19847784A JPS6176550A JP S6176550 A JPS6176550 A JP S6176550A JP 19847784 A JP19847784 A JP 19847784A JP 19847784 A JP19847784 A JP 19847784A JP S6176550 A JPS6176550 A JP S6176550A
- Authority
- JP
- Japan
- Prior art keywords
- composition
- composite material
- fine particles
- weight
- powder
- 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.)
- Granted
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は複合材料組成物に関し、詳しくは固体粉末を多
量に含有することができるとともに、流動性が良好で成
形性のすぐれた複合材料組成物に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite material composition, and more particularly to a composite material composition that can contain a large amount of solid powder, has good flowability, and has excellent moldability.
従来より、熱可塑性樹脂に成形品等の物性改良や増量効
果を目的として、固体微粒子を添加することが知られて
いる。しかしながら従来、用いられている固体微粒子は
粒径１００ ｎ ｍ〜１０μｍ程度のもので、固体微粒
子の配合量を増加させると、全体の粘度が高くなり、）
容融混練ができなくなる。BACKGROUND ART It has been known to add solid particles to thermoplastic resins for the purpose of improving the physical properties of molded products and increasing their weight. However, conventionally used solid particles have a particle size of about 100 nm to 10 μm, and as the amount of solid particles increases, the overall viscosity increases.
Melting and kneading becomes impossible.
殊に融点の高い耐熱性ポリイミン樹脂などでは均一にす
るためには温度を上げる必要があり、温度を上げると分
解するという問題があった。In particular, heat-resistant polyimine resins with a high melting point need to be heated to achieve uniformity, and there is a problem in that they decompose when the temperature is raised.
また、近年特に問題視されている電磁シールド対策にあ
たっては、従来の導電性塗料では剥離等の問題があり、
そのため良好な電磁シールド用材料の開発が期待されて
いる。In addition, when it comes to electromagnetic shielding, which has become a particular problem in recent years, conventional conductive paints have problems such as peeling.
Therefore, the development of good electromagnetic shielding materials is expected.
そこで本発明者らは、固体粉末を多量に充填してあって
も流動性、成形性が良好で、電磁シールド用材料等とし
ても好適な複合材料組成物を開発すべく鋭意検討した。Therefore, the present inventors conducted extensive studies to develop a composite material composition that has good fluidity and moldability even when filled with a large amount of solid powder, and is suitable as a material for electromagnetic shielding.
その結果、固体微粒子として特定の粒径以下のものを使
用した組成物が、上記目的を達成しうるちのであること
を見い出し、この知見に基づいて本発明を完成した。As a result, the present inventors found that a composition using solid particles having a particle size smaller than a specific value could achieve the above object, and based on this knowledge, the present invention was completed.
すなわち本発明は、粒径５０ｎｍ以下の固体微粒子１〜
９０重量％および熱可塑性樹脂９９〜１０重量％からな
る複合材料組成物を提供するものである。That is, the present invention provides solid fine particles 1 to 1 with a particle size of 50 nm or less.
A composite material composition comprising 90% by weight and 99-10% by weight of a thermoplastic resin is provided.
本発明において、粒径５Ｑｎｍ以下の固体微粒子として
は、粒径が５０ｎｍ以下、好ましくは３Ｑｎｍ以下程度
のものであれば、特に制限なく様々なも酸カルシウム、
硫酸カルシウム、硫酸バリウム。In the present invention, the solid fine particles having a particle size of 5 Q nm or less are not particularly limited as long as they have a particle size of 50 nm or less, preferably 3 Q nm or less, and various calcium oxides,
Calcium sulfate, barium sulfate.
シリカなどの無機物粉末などが挙げられる。Examples include inorganic powders such as silica.
このような固体微粒子は、種々の方法にて製造すること
ができる。金属粉末などは、粉砕機にて機械的に固形原
料を粉砕する機械粉砕法、電解により粉末状に析出させ
て粉末を得る電解法、金属化合物から金属粉を化学的に
得る還元法、溶融金属を高速の流体によって飛散凝固さ
せて粉末を得る噴霧法等がある。また、金属や無機物（
酸化物。Such solid fine particles can be produced by various methods. For metal powders, etc., there are three methods: mechanical pulverization in which solid raw materials are mechanically pulverized in a pulverizer, electrolytic method in which powder is precipitated into powder by electrolysis, reduction method in which metal powder is chemically obtained from metal compounds, and molten metal. There is a spray method that obtains a powder by scattering and solidifying it with a high-speed fluid. In addition, metals and inorganic materials (
oxide.
炭酸塩等）などの微粒子を製造する方法としては、ガス
蒸発法がある。これは不活性ガス中で目的とする物質を
加熱蒸発することにより、その物質の微粒子を煙状に発
生させ、これを冷却させた板上に導いて析出させるかあ
るいは直接液体に分散させる等して捕集して微粒子を得
る方法である。As a method for producing fine particles such as carbonates, etc., there is a gas evaporation method. This involves heating and evaporating the target substance in an inert gas to generate fine particles of that substance in the form of smoke, which are then guided onto a cooled plate and deposited, or directly dispersed in a liquid. This is a method to obtain fine particles by collecting the particles.
これらの方法により得られた固体微粒子は粒径にばらつ
きがあり、粒径５０ｎｍを超えるものが含まれる場合は
常法により分離することが好ましい。The solid fine particles obtained by these methods vary in particle size, and if particles with a particle size exceeding 50 nm are included, it is preferable to separate them by a conventional method.
次に本発明において、熱可塑性樹脂は、特に制限なく種
々のものが使用できる。具体的には高密度ポリエチレン
、低密度ポリエチレン、ポリプロピレン、ポリスチレン
、ポリカーボネート、超高分子量ポリエチレン、耐熱性
ポリイミン、ポリエーテル、ポリシアノエーテル等が挙
げられる。Next, in the present invention, various thermoplastic resins can be used without particular limitation. Specific examples include high-density polyethylene, low-density polyethylene, polypropylene, polystyrene, polycarbonate, ultra-high molecular weight polyethylene, heat-resistant polyimine, polyether, polycyanoether, and the like.
本発明において、粒径５０ｎｍ以下の固体微粒子と熱可
塑性樹脂を配合して複合材料組成物が得られるが、その
配合量は粒径５０ｎｍ以下の固体微粒子１〜９０重量％
、好ましくは５〜５０重量％、熱可塑性樹脂９９〜１０
重量％、好ましくは９５〜５０重量％である。ここで固
体微粒子の配合量が１重量％未満では、熱可塑性樹脂の
物性改善の効果が小さく、また９０重量％を超えると流
動性が低下して成形が困難になる。In the present invention, a composite material composition is obtained by blending solid fine particles with a particle size of 50 nm or less and a thermoplastic resin, and the blending amount is 1 to 90% by weight of solid fine particles with a particle size of 50 nm or less.
, preferably 5 to 50% by weight, thermoplastic resin 99 to 10
% by weight, preferably 95-50% by weight. If the amount of solid fine particles blended is less than 1% by weight, the effect of improving the physical properties of the thermoplastic resin is small, and if it exceeds 90% by weight, fluidity decreases and molding becomes difficult.
従来の組成物では固体微粒子の配合量が７０重量％を超
えるほどに高くなると、通常は、／？１．練が充分に行
なえず、また成形が困難になるなどの問題がある。しか
し本発明の組成物では極めて粒径の小さい固体微粒子を
配合しているため、上述の如き問題は生じない。In conventional compositions, when the amount of solid fine particles added is high enough to exceed 70% by weight, /? 1. There are problems such as insufficient kneading and difficulty in molding. However, since the composition of the present invention contains solid fine particles having an extremely small particle size, the above-mentioned problem does not occur.
本発明の複合材料組成物は、上記の如き成分を所定量配
合、混練することにより得られる。混練は通常行なわれ
ている方法で行なえば良い。一般に、ミル、例えばラボ
ブラストミル、バンバリーミキサ−などを用いて行なえ
ばよい。The composite material composition of the present invention is obtained by blending and kneading the above components in predetermined amounts. Kneading may be carried out by a commonly used method. Generally, this may be carried out using a mill such as a Labo Blast Mill or a Banbury mixer.
このようにして得られる本発明の組成物は、成形工程に
おいて極めて流動性が良く、成形性にすぐれている。従
来の組成物では、前述した如く無機物等の固体粒子の配
合量が７０重量％を超えると、押出成形等が困難となり
、実用性に乏しがった。The composition of the present invention obtained in this manner has extremely good fluidity in the molding process and has excellent moldability. In conventional compositions, as described above, when the amount of solid particles such as inorganic substances exceeds 70% by weight, extrusion molding, etc. becomes difficult and the composition is impractical.
しかし、本発明の組成物では、固体微粒子の配合量が９
０重量％に達しても、充分に流動性があり押出成形等が
可能である。However, in the composition of the present invention, the amount of solid fine particles is 9
Even if it reaches 0% by weight, it has sufficient fluidity and can be extruded.
したがって、本発明の組成物は茶わんなどの家庭用品の
原料として有効に利用できると同時に、比重の大きい高
重量成形品が要求されるスピーカーボックス、キャビネ
ット、ハウジング等にも利用できる。さらに、金属微粉
末が多量に配合されたものでも押出成形をすることがで
きるので、機械的強度の大きな薄いシートを成形するこ
とができ、これは自動車のエンジンルームのシールド材
。Therefore, the composition of the present invention can be effectively used as a raw material for household items such as tea bowls, and at the same time can be used for speaker boxes, cabinets, housings, etc. that require heavy molded products with high specific gravity. Furthermore, since it is possible to extrude a material containing a large amount of fine metal powder, it is possible to form a thin sheet with great mechanical strength, which is used as a shielding material for automobile engine compartments.
小型コンピューターなどの電子機器のハウジング等の素
材としても有用である。It is also useful as a material for housings of electronic devices such as small computers.
このように、本発明の組成物は高充填材料、電磁シール
ド用材料として有効に利用され得る。As described above, the composition of the present invention can be effectively used as a highly filled material and an electromagnetic shielding material.
次に本発明を実施例により、さらに詳しく説明する。Next, the present invention will be explained in more detail with reference to Examples.
実施例
ケーシング温度１５０°Ｃに設定した溶融混練用ミルに
、高密度ポリエチレン（出光石油化学（＋１製、商品名
「出光ポリエチレン４４０ Ｍｊ ） ５０ｇを入れ、
２分間混練した。その後、平均粒径３Ｑｎｍのニッケル
粉末の所定量を加えてさらに５分間混練して複合材料組
成物を得た。ニッケル粉末添加後の五線時トルクおよび
組成物から押出したポリマーの融点等を第１表に示す。Example 50 g of high-density polyethylene (manufactured by Idemitsu Petrochemical (+1, trade name: Idemitsu Polyethylene 440 Mj)) was placed in a melt-kneading mill set at a casing temperature of 150°C.
Kneaded for 2 minutes. Thereafter, a predetermined amount of nickel powder having an average particle size of 3 Qnm was added and kneaded for further 5 minutes to obtain a composite material composition. Table 1 shows the staff torque after addition of nickel powder and the melting point of the polymer extruded from the composition.
比較例
実施例において、ニッケル粉末として平均粒径７０ｎｍ
のものを用いたこと以外は実施例と同様にして、複合材
料組成物を得た。結果を第１表に示す。Comparative Example In the example, the average particle size of the nickel powder was 70 nm.
A composite material composition was obtained in the same manner as in the example except that . The results are shown in Table 1.
Claims (2)
よび熱可塑性樹脂９９〜１０重量％からなる複合材料組
成物。(1) A composite material composition comprising 1 to 90% by weight of solid fine particles having a particle size of 50 nm or less and 99 to 10% by weight of a thermoplastic resin.
る特許請求の範囲第１項記載の組成物。(2) The composition according to claim 1, wherein the solid fine particles are metal powder or inorganic powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19847784A JPS6176550A (en) | 1984-09-25 | 1984-09-25 | Composite material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19847784A JPS6176550A (en) | 1984-09-25 | 1984-09-25 | Composite material composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6176550A true JPS6176550A (en) | 1986-04-19 |
| JPH032393B2 JPH032393B2 (en) | 1991-01-14 |
Family
ID=16391757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19847784A Granted JPS6176550A (en) | 1984-09-25 | 1984-09-25 | Composite material composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6176550A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03273060A (en) * | 1989-11-24 | 1991-12-04 | Mitsuboshi Belting Ltd | Polymer composite containing fine particle dispersed therein and its preparation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5120245A (en) * | 1974-08-12 | 1976-02-18 | Teijin Chemicals Ltd | Taikoseifuirumuno seizoho |
| JPS5163847A (en) * | 1974-11-29 | 1976-06-02 | Toyo Aluminium Kk | ARUMINIUMUGANRYOOHAIGOSHITA GOSEIJUSHISOSEIBUTSU |
| JPS5341371A (en) * | 1976-09-29 | 1978-04-14 | Asahi Chemical Ind | Metal powderrfilled thermoplastic film or sheet and method of producing same |
| JPS54114534A (en) * | 1978-02-28 | 1979-09-06 | Fukuda Metal Foil Powder | Metal powder pigment for coloring synthetic resin and synthetic resin composition using same |
| JPS55120637A (en) * | 1979-03-13 | 1980-09-17 | Mitsubishi Rayon Co Ltd | Thermoplastic resin composition |
-
1984
- 1984-09-25 JP JP19847784A patent/JPS6176550A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5120245A (en) * | 1974-08-12 | 1976-02-18 | Teijin Chemicals Ltd | Taikoseifuirumuno seizoho |
| JPS5163847A (en) * | 1974-11-29 | 1976-06-02 | Toyo Aluminium Kk | ARUMINIUMUGANRYOOHAIGOSHITA GOSEIJUSHISOSEIBUTSU |
| JPS5341371A (en) * | 1976-09-29 | 1978-04-14 | Asahi Chemical Ind | Metal powderrfilled thermoplastic film or sheet and method of producing same |
| JPS54114534A (en) * | 1978-02-28 | 1979-09-06 | Fukuda Metal Foil Powder | Metal powder pigment for coloring synthetic resin and synthetic resin composition using same |
| JPS55120637A (en) * | 1979-03-13 | 1980-09-17 | Mitsubishi Rayon Co Ltd | Thermoplastic resin composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03273060A (en) * | 1989-11-24 | 1991-12-04 | Mitsuboshi Belting Ltd | Polymer composite containing fine particle dispersed therein and its preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH032393B2 (en) | 1991-01-14 |
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