JPH07207066A - Polymer composition - Google Patents
Polymer compositionInfo
- Publication number
- JPH07207066A JPH07207066A JP6003108A JP310894A JPH07207066A JP H07207066 A JPH07207066 A JP H07207066A JP 6003108 A JP6003108 A JP 6003108A JP 310894 A JP310894 A JP 310894A JP H07207066 A JPH07207066 A JP H07207066A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- alumina
- alumina particles
- twinned
- twin
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は新規な形状を有するアル
ミナと高分子化合物からなる組成物に関し、各種成形物
や積層体に利用される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition composed of alumina and a polymer having a novel shape, and is used for various molded products and laminates.
【０００２】[0002]
【従来の技術】プラスチックやゴムにアルミナなどの無
機物を充填し、その強度、耐摩耗性や難燃性を向上させ
てきた。しかし、充填剤として使用されるアルミナは、
その形状が粒状、塊状又は平板状であるため十分な耐摩
耗性が得られないという問題があった。2. Description of the Related Art Plastics and rubbers have been filled with inorganic substances such as alumina to improve their strength, abrasion resistance and flame retardancy. However, the alumina used as a filler is
There is a problem that sufficient wear resistance cannot be obtained because the shape is granular, lumpy or flat.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、プラスチッ
クやゴムに耐摩性を付与するとともに、その強度や難燃
性を向上させ、更に表面の摩擦係数を大きくし、透明性
に優れた無機充填剤を含有する高分子組成物を提供する
ことを目的とする。DISCLOSURE OF THE INVENTION The present invention provides an inorganic filler excellent in transparency, which imparts abrasion resistance to plastics and rubber, improves strength and flame retardancy thereof, and further increases the friction coefficient of the surface. It is an object to provide a polymer composition containing an agent.
【０００４】[0004]
【課題を解決するための手段】本発明者は、上記目的が
特定形状の新規な双晶アルミナ粒子を無機充填剤として
用いることによって達成されることを見出して、本発明
に至った。The present inventors have found that the above object can be achieved by using novel twinned alumina particles having a specific shape as an inorganic filler, and have completed the present invention.
【０００５】即ち、本発明は平板状をしたアルミナが貫
入型に交差して成長した双晶アルミナ粒子を含有する高
分子組成物であり、特に、双晶アルミナ粒子の粒子径が
０．５〜１０μｍの範囲である場合、及び高分子化合物
が透明性樹脂であって双晶アルミナを透明性樹脂に対し
て１〜１０重量％添加してなる場合を含むものである。That is, the present invention is a polymer composition containing twinned alumina particles in which tabular alumina grows so as to intersect in a penetrating type, and in particular, the twinned alumina particles have a particle diameter of 0.5 to 0.5. The range includes the range of 10 μm, and the case where the polymer compound is a transparent resin and twinned alumina is added in an amount of 1 to 10% by weight with respect to the transparent resin.
【０００６】本発明で用いる双晶アルミナ粒子は、平板
状をしたアルミナが互いに貫入型に交差して成長した新
規な形状の結晶である。サブミクロンオーダーに粒度調
整した水酸化アルミニウム又はアルミナ水和物を水又は
アルカリ水溶液で水熱処理する際、原料と水溶液の比
（原料／水溶液）が１〜１０及び水熱処理において温度
３５０℃以上、圧力２００気圧以下で処理することによ
って製造方法される。The twinned alumina particles used in the present invention are crystals of a novel shape in which tabular alumina particles grow by interpenetrating each other. When aluminum hydroxide or alumina hydrate whose particle size is adjusted to the submicron order is hydrothermally treated with water or an alkaline aqueous solution, the ratio of the raw material to the aqueous solution (raw material / aqueous solution) is 1 to 10, and the temperature in the hydrothermal treatment is 350 ° C. or higher, and the pressure. The production method is carried out by treating at 200 atm or less.
【０００７】製造方法をさらに詳述すると、出発原料と
して水酸化アルミニウム又はベーマイト等のアルミナ水
和物をあらかじめボールミル等で粉砕してサブミクロン
オーダーに粒度調整したものを用い、これを水又は苛性
ソーダ、炭酸ソーダ等のアルカリ水溶液とともに密閉オ
ートクレーブ中に充填し、高温、高圧にて水熱処理する
ことにより行われる。最終双晶アルミナ粒子の寸法を小
さく（例えば２μｍ以下）揃えるためには出発原料であ
る水酸化アルミニウム又はアルミナ水和物をサブミクロ
ンオーダーに粒度調整することが必要である。温度、圧
力の条件に関しては、Ａｌ2Ｏ3−Ｈ2Ｏ系状態図で、α
−アルミナの安定な領域でなければならない。温度を３
５０℃以上と限定する理由は、３５０℃未満ではα−ア
ルミナを得ることができないためである。特に上限につ
いては限定していないが、装置に係るもので、経済性を
考慮した範囲内が好ましい。The production method will be described in more detail. As a starting material, an aluminum hydrate such as aluminum hydroxide or boehmite is crushed in advance with a ball mill or the like and the particle size is adjusted to a submicron order. It is carried out by filling a closed autoclave together with an aqueous alkali solution such as sodium carbonate in a closed autoclave and subjecting it to hydrothermal treatment at high temperature and high pressure. In order to make the size of the final twinned alumina particles small (for example, 2 μm or less), it is necessary to adjust the particle size of the starting aluminum hydroxide or alumina hydrate to the submicron order. Regarding the temperature and pressure conditions, in the Al 2 O 3 —H 2 O phase diagram, α
Must be in the stable region of alumina. Temperature 3
The reason for limiting the temperature to 50 ° C. or higher is that α-alumina cannot be obtained below 350 ° C. Although the upper limit is not particularly limited, it is preferably within the range in consideration of economy, as it relates to the device.
【０００８】圧力を２００気圧以下と限定する理由は２
００加圧を越える圧力では、得られる粒子の形状が肉厚
の粒状で微細な双晶粒子は得られない。又、下限につい
ては、当然開放系では水熱系が成り立たないので、好ま
しくは５０気圧以上１００気圧以下がよい。又、原料と
水溶液の比が１〜１０とすると熱水に溶解された原料の
アルミニウムイオン類がアルミナの核形成の段階で高い
過飽和となり、その成長過程で双晶をつくる確立が高く
なる逆に原料と水溶液の比が１より少ない場合、双晶に
ならず単一な板状アルミナが結晶析出する確立が高くな
る。特に原料と水溶液の比が２〜４の時収率がよいので
より好ましい。There are two reasons why the pressure is limited to 200 atm or less.
When the pressure exceeds 00, the shape of the obtained particles is thick and fine twinned particles cannot be obtained. Further, the lower limit is preferably 50 atm or more and 100 atm or less, because a hydrothermal system cannot be naturally established in an open system. Further, when the ratio of the raw material to the aqueous solution is 1 to 10, the aluminum ions of the raw material dissolved in hot water become highly supersaturated at the stage of nucleation of alumina, and the probability of forming twins during the growth process increases. When the ratio of the raw material to the aqueous solution is less than 1, the probability that a single plate-like alumina will not be twinned and crystallize will increase. In particular, when the ratio of the raw material to the aqueous solution is 2 to 4, the yield is good, which is more preferable.
【０００９】本発明の製造方法により結晶形が六方晶で
（００１）面が平板状で２個の結晶が互いに貫入型に交
差して成長した。又、その粒子径は２μｍ以下と微細な
双晶アルミナ粒子を得ることができる。この交差角は６
０゜である。According to the manufacturing method of the present invention, the crystal form was hexagonal, the (001) plane was tabular, and two crystals were grown so as to intersect each other in a penetrating type. Further, fine twinned alumina particles having a particle diameter of 2 μm or less can be obtained. This intersection is 6
It is 0 °.
【００１０】本発明で用いる平板状をしたアルミナが互
いに貫入型（板状の結晶の端面又は両面に別の結晶が交
差型に成長した。）に交差して成長した双晶アルミナと
は、図１の斜視図、及び図２の側面図で表わされる略Ｘ
字型の結晶であるが、この他一枚の平板に他の平板が６
０°で貫入した略Ｔ字型の結晶や、２枚の平板が互いに
その端部で交差した略Ｌ字型の結晶も含まれる。なお、
粒径とは、図１に示すように一方の板状粒子の対角長の
長さである。The twinned alumina used in the present invention, which is formed by intersecting the flat-plate-shaped alumina with each other so as to interpenetrate (the other crystal grows in the cross-type on the end face or both faces of the plate-shaped crystal), 1 is a perspective view and FIG. 2 is a side view.
Although it is a V-shaped crystal, the other flat plate is 6
A substantially T-shaped crystal that penetrates at 0 ° and a substantially L-shaped crystal in which two flat plates intersect each other at their ends are also included. In addition,
The particle size is a diagonal length of one plate-like particle as shown in FIG.
【００１１】又、合成された原料粉体には、双晶粒子と
ともに単晶粒子（板状等）が含まれる場合もある。この
場合も本願に含まれるものである。本発明においては、
これらの混合体から双晶粒子を分離して原料粉末として
使用してもよいし、又、分離せずに混合状態でも原料粉
末として使用することができる。Further, the synthesized raw material powder may contain single crystal particles (plate-like particles) together with twin crystal particles. This case is also included in the present application. In the present invention,
Twin particles may be separated from these mixtures and used as a raw material powder, or may be used as a raw material powder in a mixed state without separation.
【００１２】なお、従来よりアルミナ粒子の製造方法と
してはバイヤー法によるものが知られているが、この方
法を用いた場合は、粒子の形状が粒状になりやすい。
又、板状粒子を製造する方法としては、例えば特公昭３
５−６９７７号公報に見られるように仮焼工程で弗化ア
ルミニウム等の鉱化剤を添加する方法が知られている。
又、水熱処理法においては特公昭３７−７７５０号公報
が知られているが、いずれも粒状又は板状アルミナの製
造方法に関するもので、本法が示す板状が互いに交差し
た双晶アルミナを得ることはできない。Although a Bayer method has been conventionally known as a method for producing alumina particles, when this method is used, the particles are likely to be granular.
Further, as a method for producing plate-like particles, for example, Japanese Patent Publication No. Sho 3
As disclosed in Japanese Patent Laid-Open No. 5-6977, a method of adding a mineralizer such as aluminum fluoride in a calcination step is known.
Japanese Patent Publication No. 37750/1974 is known in the hydrothermal treatment method, but both are related to a method for producing granular or plate-like alumina, and twinned alumina having plate-like shapes shown in this method is obtained. It is not possible.
【００１３】（製造例）ボールミルにて中心径０．７μ
ｍに粒度調整した水酸化アルミニウム１０ｇに純水５ｇ
を加えたスラリーを１００ｃｃのオートクレブに充填
し、６００℃、１００気圧にて３時間水熱処理を行っ
た。処理後の生成物を水洗、濾過、乾燥してアルミナ粉
末を得た。(Production Example) Central diameter 0.7 μm in a ball mill
5 g of pure water in 10 g of aluminum hydroxide whose particle size is adjusted to m
The slurry containing was added to an autoclave of 100 cc, and hydrothermal treatment was performed at 600 ° C. and 100 atm for 3 hours. The product after the treatment was washed with water, filtered and dried to obtain an alumina powder.
【００１４】上記粉末を粉末Ｘ線回折により測定した。
得られた結晶は測定の結果α−アルミナであることが確
認された。又、走査型電子顕微鏡で観察した。ＳＥＭ観
察より平板状をした２個の粒子が互いに貫入型に交差し
て成長した双晶アルミナ粒子であることが観察された。The above powder was measured by powder X-ray diffraction.
As a result of the measurement, the obtained crystal was confirmed to be α-alumina. Moreover, it observed with the scanning electron microscope. From the SEM observation, it was observed that the two tabular grains were twinned alumina grains grown by penetratingly intersecting each other.
【００１５】本発明で用いられる高分子化合物は特に制
限されず、天然又は合成のプラスチック又はゴムであ
る。例えば、ポリエチレン、ポリプロピレン、ポリ塩化
ビニル、アクリル樹脂、メタクリル樹脂、ポリスチレ
ン、フェノール樹脂、ポリアミド樹脂、ふっ素樹脂、ポ
リアセタール樹脂、ＡＢＳ樹脂、ポリイミド、ＦＲＰな
どの複合材料、ポリカーボネート、ユリア樹脂、エポキ
シ樹脂、ジアリルフタレート樹脂、ポリフェニレンオキ
シド、ポリフェニレンスルフィド、シリコーン樹脂、ポ
リウレタン、不飽和ポリエステル、アルキド樹脂、エチ
レン−酢ビ共重合体など、これらの共重合体、ブロック
共重合体、グラフト共重合体、セルロース誘導体、天然
ゴム、ブタジエンゴム、イソプレンゴム、ＳＢＲ、ＥＰ
Ｒ、ＥＰＴ、シリコーンゴムなどのゴムなどが挙げられ
る。この中で、後述するように透明性の点からエポキシ
樹脂、アクリル樹脂、各種ビニル樹脂、ウレタン樹脂、
アミノアルキッド樹脂、ポリエステル樹脂などが好適で
ある。The polymer compound used in the present invention is not particularly limited and is a natural or synthetic plastic or rubber. For example, polyethylene, polypropylene, polyvinyl chloride, acrylic resin, methacrylic resin, polystyrene, phenol resin, polyamide resin, fluorine resin, polyacetal resin, ABS resin, polyimide, composite material such as FRP, polycarbonate, urea resin, epoxy resin, diallyl. Phthalate resin, polyphenylene oxide, polyphenylene sulfide, silicone resin, polyurethane, unsaturated polyester, alkyd resin, ethylene-vinyl acetate copolymer, etc., copolymers thereof, block copolymers, graft copolymers, cellulose derivatives, natural Rubber, butadiene rubber, isoprene rubber, SBR, EP
Examples thereof include rubber such as R, EPT, and silicone rubber. Among these, epoxy resin, acrylic resin, various vinyl resins, urethane resin,
Amino alkyd resins and polyester resins are suitable.
【００１６】本発明による双晶アルミナ粒子は、基本的
には親水性であり、親水性樹脂には、そのままでもよく
なじむが、適当な分散剤を用いることにより、より十分
分散化できる。又、シランカップリング剤、チタネート
系カップリング剤などのカップリング剤で処理をして疎
水性樹脂になじませることも効果的である。The twinned alumina particles according to the present invention are basically hydrophilic, and although they are compatible with the hydrophilic resin as they are, they can be more sufficiently dispersed by using an appropriate dispersant. It is also effective to treat with a coupling agent such as a silane coupling agent or a titanate-based coupling agent so that the hydrophobic resin is made compatible with it.
【００１７】本発明の高分子組成物は各種用途に用いら
れ特に限定されないが、例えば、各種成形品、フィルム
又はシート、積層体、光学部品、管状体、棒状体、中空
物品、ベルト、タイヤなどの他、歯車、電気機器キャビ
ネット、ベアリング、ロッド、ファン、タービン、建築
部材、自動車部材、パイプ、ボトル、工具、車輪、家
具、ハニカム構造体などのエンジニアリングプラスチッ
クスなどに用いられる。本発明の高分子組成物は各種成
型法によって、上記の用途に成型される。その成型法は
各高分子の加工法として用いられているものが応用され
る。The polymer composition of the present invention is used for various purposes and is not particularly limited. For example, various molded articles, films or sheets, laminates, optical parts, tubular bodies, rod-shaped bodies, hollow articles, belts, tires, etc. Besides, they are used for engineering plastics such as gears, electric equipment cabinets, bearings, rods, fans, turbines, building members, automobile members, pipes, bottles, tools, wheels, furniture, and honeycomb structures. The polymer composition of the present invention is molded into the above-mentioned applications by various molding methods. As the molding method, the one used as a processing method for each polymer is applied.
【００１８】更に本発明の高分子組成物には所望によ
り、他の各種添加剤の１種以上を含有させることができ
る。例えば、無機物としては、アスベスト粉、アスベス
ト繊維、マイカ、タルク、硫酸バリアム、けい灰石、黒
鉛、せっこう、けいそう土、方解石、スレート粉、岩
綿、クレー、カオリン、リナージ、亜鉛華、リトポン、
チタン白、ガラス繊維、ステアタイト、無機顔料、カー
ボンなどである。Further, the polymer composition of the present invention may optionally contain one or more other various additives. For example, as inorganic substances, asbestos powder, asbestos fiber, mica, talc, sulphate barrier, wollastonite, graphite, gypsum, diatomaceous earth, calcite, slate powder, rock wool, clay, kaolin, lineage, zinc white, lithopone. ,
Examples include titanium white, glass fiber, steatite, inorganic pigments and carbon.
【００１９】有機物としては、木粉、紙、麻、織布、細
断布、合成繊維、天然樹脂、有機顔料などである。これ
ら各種添加剤は、充填剤、可塑剤、滑剤、着色剤、硬化
剤、変性剤、耐熱性、耐衝撃性、耐薬品性、耐摩耗性、
導電性の向上などの目的で添加される。逆に、これらの
目的に合った公知の添加剤は本発明の高分子組成物に添
加することができる。The organic substances include wood powder, paper, linen, woven cloth, shredded cloth, synthetic fibers, natural resins, organic pigments and the like. These various additives include fillers, plasticizers, lubricants, colorants, curing agents, modifiers, heat resistance, impact resistance, chemical resistance, abrasion resistance,
It is added for the purpose of improving conductivity. On the contrary, known additives suitable for these purposes can be added to the polymer composition of the present invention.
【００２０】本発明の組成物における双晶アルミナ粒子
と高分子化合物の重量比は１：９９〜９９：１である。
透明樹脂の場合は双晶アルミナを透明樹脂に対して１〜
１０重量％添加すると特に好適である。The weight ratio of the twinned alumina particles and the polymer compound in the composition of the present invention is 1:99 to 99: 1.
In the case of transparent resin, twin crystal alumina is 1 to transparent resin.
It is particularly preferable to add 10% by weight.
【００２１】特定形状の双晶アルミナ粒子を添加するこ
とにより本発明ではプラスチックやゴムに耐摩耗性を付
与するとともに、その強度や難燃性を向上させ、更に表
面の摩擦係数を大きくすることができる。その理由は、
従来の粒状や塊状のアルミナに比べて本発明で用いる双
晶アルミナは、全体に角ばったものであり、高分子表面
に他の物が接触しても、そのアンカー効果により容易に
はアルミナ粒子が脱落しないことによる。又、上記のよ
うに全体に角ばっていることから、従来のアルミナ粒子
に比べて嵩比重が小さく、少量の添加で、耐摩耗性、強
度、難燃性などを大きく向上させることができるととも
に、最終成形品の軽量化にも効果がある。本発明の高分
子組成物は耐酸性を有しており、屋外に置かれても酸性
雨によって劣化することが少ない。In the present invention, by adding twinned alumina particles having a specific shape, it is possible to impart wear resistance to plastics and rubbers, improve their strength and flame retardancy, and increase the friction coefficient of the surface. it can. The reason is,
The twinned alumina used in the present invention is more angular than the conventional granular or lumpy alumina, and even if other substances come in contact with the polymer surface, the alumina particles are easily formed due to their anchoring effect. Because it does not fall off. Further, as described above, since the whole is angular, the bulk specific gravity is smaller than that of conventional alumina particles, and addition of a small amount can greatly improve wear resistance, strength, flame retardancy, and the like. It is also effective in reducing the weight of the final molded product. The polymer composition of the present invention has acid resistance and is less likely to be deteriorated by acid rain even when placed outdoors.
【００２２】更に本発明で用いる特定形状の双晶アルミ
ナの屈接率は１．７前後であり、上記したような多くの
透明性樹脂の屈折率と近似しているため、これらを混合
した組成物は透明性の優れたものとなる。Further, the refractive index of the twin-shaped alumina having a specific shape used in the present invention is about 1.7, which is close to the refractive index of many transparent resins as described above, so that a composition in which these are mixed is used. The thing becomes excellent in transparency.
【００２３】[0023]
【実施例】以下、実施例及び比較例を用いて説明する。EXAMPLES Hereinafter, examples and comparative examples will be described.
【００２４】実施例１、比較例１ 樹脂としてエポキシ樹脂（旭電化工業製アデカレジンＥ
ｐ−４０００）及び硬化剤としてトリエチレンテトラミ
ンを重量比で９０：１０で調整し、これに製造例で得ら
れた双晶アルミナ粒子と従来の粒状、塊状及び板状のア
ルミナを５重量％添加した。よく混合した後、脱気し、
耐摩耗性試験及び透明性試験のためのテストピースを得
た。結果を表１に示す。なお、ａ：ｂとは各粒子のたて
の長さと横の長さの比である。表１より、本発明の高分
子組成物は耐摩耗性及び透明性において優れていること
が分かる。Example 1 and Comparative Example 1 An epoxy resin (Adeka Resin E manufactured by Asahi Denka Kogyo Co., Ltd.) was used as a resin.
p-4000) and triethylenetetramine as a curing agent in a weight ratio of 90:10, and 5% by weight of twinned alumina particles obtained in Production Example and conventional granular, lumpy or plate-shaped alumina were added thereto. did. After mixing well, degas,
A test piece for abrasion resistance test and transparency test was obtained. The results are shown in Table 1. It should be noted that a: b is the ratio of the vertical length and the horizontal length of each particle. From Table 1, it can be seen that the polymer composition of the present invention is excellent in abrasion resistance and transparency.
【００２５】[0025]
【表１】 [Table 1]
【００２６】（耐摩耗性試験）湿式平面研摩機を用いて
荷重３００ｇとし、耐水研摩紙＃２００、＃４００をそ
れぞれ使用して、１０分間研削し、その時の摩耗量を測
定した。アルミナ未添加試験品の摩耗量を１００とした
時の相対値で評価した。(Abrasion resistance test) Using a wet type flat surface grinder, a load of 300 g was used, water-resistant abrasive papers # 200 and # 400 were used for grinding for 10 minutes, and the amount of wear at that time was measured. Evaluation was made by the relative value when the wear amount of the test product without addition of alumina was 100.
【００２７】（透明性試験）上記樹脂組成物を内径２４
ｍｍのポリ塩化ビニル製円筒形の型内に約２０ｍｍの高
さまで注入する。２４時間経過後硬化した樹脂を取り出
す。２ｍｍの厚さに切削して文字判読のテストを行っ
た。新聞紙の上に載せ行うものとする。(Transparency test) The above resin composition was prepared with an inner diameter of 24
Pour to a height of approximately 20 mm in a mm polyvinyl chloride cylindrical mold. After 24 hours, the cured resin is taken out. It was cut to a thickness of 2 mm and a character reading test was performed. It should be placed on newspaper.
【００２８】◎：判読完全可能 ○：判読可能 △：半透明で判読可能 ×：判読不可能 実施例２ 実施例１と同様にテストピースを作製した。双晶アルミ
ナ添加量を以下のようにして耐摩耗性と透明性のテスト
を行った。結果を表２に示す。∘: Perfect readability ○: Readable △: Semitransparent and readable ×: Unreadable Example 2 A test piece was prepared in the same manner as in Example 1. Abrasion resistance and transparency were tested by setting the amount of twinned alumina added as follows. Table 2 shows the results.
【００２９】[0029]
【表２】 [Table 2]
【００３０】アルミナの樹脂の添加量が０．５〜１５重
量％の時に耐摩耗性が、特に優れること、及び透明性は
０．５〜１０重量％の時に優れることがわかる。即ち、
０．５〜１０重量％において耐摩耗性及び透明性の両者
に優れる。なお、塊状アルミナなどは多くすると脱落し
た粒子がより研磨を促進するようになり、かえって耐摩
耗性が低下する。It can be seen that the abrasion resistance is particularly excellent when the amount of the alumina resin added is 0.5 to 15% by weight, and the transparency is excellent when the amount is 0.5 to 10% by weight. That is,
When it is 0.5 to 10% by weight, both abrasion resistance and transparency are excellent. It should be noted that if a large amount of agglomerated alumina or the like is added, the particles that have fallen off will promote polishing more, and the wear resistance will rather decrease.
【００３１】なお、上記実施例１及び２ではエポキシ樹
脂を用いたが、アミノアルキッド樹脂、ポリエステル、
ポリウレタン、アクリル樹脂に対しても同様の結果を得
た。Although epoxy resin was used in Examples 1 and 2, aminoalkyd resin, polyester,
Similar results were obtained for polyurethane and acrylic resin.
【００３２】[0032]
【発明の効果】上記のように本発明の高分子組成物は、
従来のものに比べて軽量で耐摩耗性、強度や難燃性に優
れ、表面の摩擦係数を大きくするとともに、透明性にも
優れたものである。As described above, the polymer composition of the present invention is
It is lighter in weight, superior in abrasion resistance, strength and flame retardancy than conventional ones, has a large surface friction coefficient, and is also excellent in transparency.
【図１】本発明で用いる平板状をしたアルミナが互いに
貫入型に交差した双晶アルミナの拡大斜視図。FIG. 1 is an enlarged perspective view of twinned alumina in which flat plate-shaped alumina used in the present invention intersects each other in a penetrating manner.
【図２】本発明で用いる双晶アルミナの拡大側面図。FIG. 2 is an enlarged side view of twinned alumina used in the present invention.
Claims (3)
て成長した双晶アルミナ粒子を含有する高分子化合物の
組成物。1. A composition of a polymer compound containing twinned alumina particles grown by tabular alumina intersecting in a penetrating type.
０μｍの範囲である双晶α−アルミナ粒子である請求項
１記載の組成物。2. The twinned alumina particles have a particle size of 0.5 to 1.
The composition of claim 1 which is twinned α-alumina particles in the range of 0 μm.
アルミナを透明性樹脂に対して１〜１０重量％添加して
なる請求項１又は２記載の組成物。3. The composition according to claim 1 or 2, wherein the polymer compound is a transparent resin, and twinned alumina is added in an amount of 1 to 10% by weight based on the transparent resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6003108A JP2945262B2 (en) | 1994-01-17 | 1994-01-17 | Polymer composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6003108A JP2945262B2 (en) | 1994-01-17 | 1994-01-17 | Polymer composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07207066A true JPH07207066A (en) | 1995-08-08 |
| JP2945262B2 JP2945262B2 (en) | 1999-09-06 |
Family
ID=11548160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6003108A Expired - Fee Related JP2945262B2 (en) | 1994-01-17 | 1994-01-17 | Polymer composition |
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| Country | Link |
|---|---|
| JP (1) | JP2945262B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008016048A1 (en) * | 2006-08-03 | 2008-02-07 | Nissan Motor Co., Ltd | Surface-coated aluminum oxide nanoparticle and resin composition thereof |
| WO2019194158A1 (en) | 2018-04-06 | 2019-10-10 | Dic株式会社 | Alumina particle |
| KR20220079592A (en) | 2019-10-09 | 2022-06-13 | 디아이씨 가부시끼가이샤 | Composite Particles and Methods of Making Composite Particles |
| KR20230129442A (en) | 2021-01-13 | 2023-09-08 | 디아이씨 가부시끼가이샤 | Composite particles and methods for producing composite particles |
-
1994
- 1994-01-17 JP JP6003108A patent/JP2945262B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008016048A1 (en) * | 2006-08-03 | 2008-02-07 | Nissan Motor Co., Ltd | Surface-coated aluminum oxide nanoparticle and resin composition thereof |
| WO2019194158A1 (en) | 2018-04-06 | 2019-10-10 | Dic株式会社 | Alumina particle |
| KR20200139134A (en) | 2018-04-06 | 2020-12-11 | 디아이씨 가부시끼가이샤 | Alumina particles |
| US11401169B2 (en) | 2018-04-06 | 2022-08-02 | Dic Corporation | Alumina particle |
| KR20220079592A (en) | 2019-10-09 | 2022-06-13 | 디아이씨 가부시끼가이샤 | Composite Particles and Methods of Making Composite Particles |
| EP4041685A4 (en) * | 2019-10-09 | 2023-07-12 | DIC Corporation | Composite particle and method of producing composite particle |
| KR20230129442A (en) | 2021-01-13 | 2023-09-08 | 디아이씨 가부시끼가이샤 | Composite particles and methods for producing composite particles |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2945262B2 (en) | 1999-09-06 |
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