JPH0352411B2 - - Google Patents
Info
- Publication number
- JPH0352411B2 JPH0352411B2 JP21837183A JP21837183A JPH0352411B2 JP H0352411 B2 JPH0352411 B2 JP H0352411B2 JP 21837183 A JP21837183 A JP 21837183A JP 21837183 A JP21837183 A JP 21837183A JP H0352411 B2 JPH0352411 B2 JP H0352411B2
- Authority
- JP
- Japan
- Prior art keywords
- titanate
- alkali titanate
- alkali
- present
- temperature
- 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
Links
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 31
- 239000003513 alkali Substances 0.000 claims description 29
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000011231 conductive filler Substances 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- GROMGGTZECPEKN-UHFFFAOYSA-N sodium metatitanate Chemical class [Na+].[Na+].[O-][Ti](=O)O[Ti](=O)O[Ti]([O-])=O GROMGGTZECPEKN-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000007716 flux method Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000029052 metamorphosis Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007777 multifunctional material Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/003—Titanates
- C01G23/005—Alkali titanates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/36—Compounds of titanium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
- C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
Description
【発明の詳細な説明】
本発明は、変成チタン酸アルカリの製造法に関
し、その目的とするところはプラスチツク等に対
する補強効果が優れた電気伝導性を有する変成チ
タン酸アルカリを提供することにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a modified alkali titanate, and an object of the present invention is to provide a modified alkali titanate that has excellent electrical conductivity and a reinforcing effect on plastics.
科学技術の発達とニーズの多様化に伴ない高性
能、多機能素材の開発が活発に行われ、プラスチ
ツク業界にあつても導電性高分子材料の開発につ
いての研究が種々試みられており、例えばカーボ
ン粒子もしくは繊維又は銅、銀、金等の金属粉を
導電性充填剤として用いた高分子材料が提案され
ている。しかしながら、カーボン粒子、カーボン
繊維、銅、銀、金等の金属粉等は、いずれも黒色
又は金属独自の色調を有するものであり、しかも
これら導電性充填剤はカーボン繊維を除き非補強
性の充填剤である。またカーボン繊維は、補強性
の導電性充填剤ではあるが、繊維長を均質に揃え
るのが困難であり、アスペクト比が不揃いとなる
ため、成型加工性が悪く、また成型品の表面平滑
性、研磨性が劣る。 With the development of science and technology and the diversification of needs, the development of high-performance, multifunctional materials is actively being carried out, and even in the plastics industry, various studies are being attempted on the development of conductive polymer materials. Polymer materials using carbon particles or fibers or metal powders such as copper, silver, and gold as conductive fillers have been proposed. However, carbon particles, carbon fibers, metal powders such as copper, silver, and gold are all black or have a color unique to the metal, and these conductive fillers are non-reinforcing fillers except for carbon fibers. It is a drug. Although carbon fiber is a reinforcing conductive filler, it is difficult to make the fiber length uniform and the aspect ratio becomes uneven, resulting in poor moldability and poor surface smoothness of molded products. Poor polishing properties.
本発明者は、以上の如き実状に鑑み導電性組成
物、金属被膜を有するチタネート及びその製造
法、還元チタン酸アルカリの製造法等チタン酸カ
リを用いて、耐熱性、補強性の優れた充填剤を開
発、出願中であるが、これらはいずれも着色され
ており、白色又は淡彩色が望まれる用途への適用
が困難であつた。本発明者は斯る現状に鑑み上記
欠点を有さない新しい材料を開発すべく鋭意研究
の結果、本発明に到達したものである。 In view of the above-mentioned circumstances, the inventors of the present invention have developed a conductive composition, a titanate having a metal coating, a method for producing the same, a method for producing a reduced alkali titanate, etc. using potassium titanate, and a filling material with excellent heat resistance and reinforcing properties. Agents have been developed and applications are pending, but these are all colored, making it difficult to apply them to applications where white or pale colors are desired. In view of the current situation, the present inventor has arrived at the present invention as a result of intensive research to develop a new material that does not have the above-mentioned drawbacks.
即ち本発明は、一般式
M2O・nTiO2 （）
〔式中Ｍはアルカリ金属、ｎは１〜12の整数を示
す。〕
で表わされるチタン酸アルカリを水素雰囲気下
500〜1100℃で加熱焼成して一般式
M2O・nTiO2-x
〔式中ｘは２以下の正の実数を示す。Ｍ及びｎは
前記に同じ。〕
で表わされる変成チタン酸アルカリを得ることを
特徴とする変成チタン酸アルカリの製造法に係
る。 That is, the present invention provides a compound having the general formula M 2 O·nTiO 2 () [where M is an alkali metal and n is an integer of 1 to 12]. ] In a hydrogen atmosphere, an alkali titanate represented by
The product is heated and fired at 500 to 1100°C to obtain the general formula M 2 O·nTiO 2-x [wherein x represents a positive real number of 2 or less]. M and n are the same as above. ] This relates to a method for producing a modified alkali titanate, which is characterized by obtaining a modified alkali titanate represented by the following.
本発明に係る変成されたチタン酸アルカリは、
変成前のチタン酸アルカリの諸物性、特に耐熱
性、複合材料として用いた時の補強性及び表面平
滑性等の特徴を何ら失することなく、白色又は極
くわずかな青色を呈する色調を保持し、従来の還
元チタン酸アルカリ又は水素添加型チタン酸ナト
リウムの如き黒色、黒紫色又は黒褐色等の色調に
変色することなく、複合材料として用いた時、白
色又は着色剤を併用することにより所望する任意
の色調に調整することが出来、帯電防止、静電気
除去、導電性材料等のニーズ適合性が、従来の還
元チタン酸アルカリ等に比し大きく改善され、特
にシート、紙、布帛、フイルム等の白色導電材料
等への適合性に関し、補強性、表面平滑性を失す
ることなく導電性を付加出来る処理剤として産業
利用性の高いものである。本発明の白色性を損わ
ない電気伝導性チタン酸アルカリはプラスチツク
の補強材料、導電性ペーパーの充填剤、導電性イ
ンキ等の種々の用途に広く利用され得る。 The modified alkali titanate according to the present invention is
It maintains the white or very slight blue color tone without losing any of the physical properties of the alkali titanate before metamorphosis, especially heat resistance, reinforcing properties when used as a composite material, and surface smoothness. When used as a composite material, it does not change color to black, blackish purple, or blackish brown like conventional reduced alkali titanate or hydrogenated sodium titanate, and when used as a composite material, it can be white or as desired by using a coloring agent. It can be adjusted to the desired color tone, and its suitability for antistatic, static electricity removal, and conductive material needs has been greatly improved compared to conventional reduced alkali titanate, etc., and is especially suitable for white sheets, paper, fabrics, films, etc. Regarding its compatibility with conductive materials, it has high industrial applicability as a treatment agent that can add conductivity without losing reinforcing properties or surface smoothness. The electrically conductive alkali titanate of the present invention that does not impair whiteness can be widely used in various applications such as reinforcing materials for plastics, fillers for electrically conductive papers, and electrically conductive inks.
本発明において、上記一般式（）で表わされ
るチタン酸アルカリは公知の化合物であり、従来
大別して水熱合成法、融剤法（フラツクス法）及
び焼成法で製造されているものである。本発明で
は、上記一般式（）に包含される限り公知のチ
タン酸アルカリをいずれも使用でき、例えばチタ
ン酸ナトリウム、チタン酸カリウム、チタン酸リ
チウム等が挙げられる。本発明では特に式K2O・
6TiO2で表わされるチタン酸カリウムは、耐火・
断熱性、機械強度がすぐれ、しかも充填剤として
用いた時、表面平滑性がすぐれている点有利であ
る。チタン酸アルカリは、一般に粉末又は繊維状
の微細結晶体であるが、本発明ではこれらいずれ
の形態でも使用可能である。本発明に使用するチ
タン酸アルカリとしては本発明の目的に合致する
ためには繊維状物質が好ましく、一般的には繊維
状のチタン酸カリウムが実用上好ましいものであ
り、このうち繊維長5μｍ以上、アスペクト比20
以上、特に100以上のものが補強性充填剤として
適している。 In the present invention, the alkali titanate represented by the above general formula () is a known compound, and conventionally produced by a hydrothermal synthesis method, a flux method, and a calcination method. In the present invention, any known alkali titanate can be used as long as it is included in the above general formula (), and examples thereof include sodium titanate, potassium titanate, lithium titanate, and the like. In particular, the present invention uses the formula K 2 O.
Potassium titanate, represented by 6TiO2 , is a fire-resistant and
It is advantageous in that it has excellent heat insulation properties and mechanical strength, and also has excellent surface smoothness when used as a filler. Alkali titanate is generally in the form of powder or fibrous microcrystals, but any of these forms can be used in the present invention. The alkali titanate used in the present invention is preferably a fibrous material in order to meet the purpose of the present invention, and generally fibrous potassium titanate is practically preferred, and among these, those with a fiber length of 5 μm or more are preferred. , aspect ratio 20
Among the above, those having a number of 100 or more are particularly suitable as reinforcing fillers.
本発明の変成チタン酸アルカリは、上述のチタ
ン酸アルカリを水素雰囲気下で500〜1100℃で加
熱焼成することにより製造することができる。後
に実施例で詳述するが例えばチタン酸アルカリを
密閉型高温加熱炉に入れてから減圧下で系内の空
気を除去するか又は炉内に窒素ガスを導入し空気
を窒素でまず置換し、次いで昇温させ500〜1100
℃になつた後に水素ガスを炉内に導入して反応を
行わしめ、チタン酸アルカリの結晶より酸素を引
きぬいて電気伝導性を付与させるのがよい。ここ
で使用される水素ガスは実質的に入手可能な工業
用水素ガスで充分であり、特別の精製は必要でな
い。 The modified alkali titanate of the present invention can be produced by heating and baking the above-mentioned alkali titanate at 500 to 1100°C in a hydrogen atmosphere. As will be described in detail later in Examples, for example, after putting an alkali titanate into a closed high-temperature heating furnace, the air in the system is removed under reduced pressure, or nitrogen gas is introduced into the furnace and the air is first replaced with nitrogen. Then raise the temperature to 500-1100
It is preferable to introduce hydrogen gas into the furnace after the temperature reaches 0.degree. C. to cause a reaction and to draw out oxygen from the alkali titanate crystals to impart electrical conductivity. As the hydrogen gas used here, practically available industrial hydrogen gas is sufficient, and no special purification is required.
本発明の加熱焼成温度としては、通常500〜
1100℃、好ましくは600〜900の範囲であり、加熱
焼成時間は、通常20〜180分、好ましくは30〜90
分の範囲である。加熱焼成温度が上記温度より低
いと所望の変性チタン酸アルカリが得られず、一
方加熱焼成温度が高すぎるとチタン酸アルカリの
融点以上の温度となり、チタン酸アルカリが溶融
したり、分解したりして好ましくない。また加熱
焼成時間は、チタン酸アルカリの白色であるとい
う色調を損わず電気伝導性を付与するために上記
の範囲内とするのがよい。上記加熱焼成時間より
短いと所望の変成チタン酸アルカリが得られず、
加熱焼成時間が長くぎると徐々に有色化してきて
白色性が失なわれてくるので好ましくない。 The heating and firing temperature of the present invention is usually 500~
The temperature is 1100℃, preferably in the range of 600 to 900℃, and the heating and baking time is usually 20 to 180 minutes, preferably 30 to 90 minutes.
range of minutes. If the heating and firing temperature is lower than the above temperature, the desired modified alkali titanate cannot be obtained. On the other hand, if the heating and firing temperature is too high, the temperature will exceed the melting point of the alkali titanate, and the alkali titanate may melt or decompose. I don't like it. Further, the heating and baking time is preferably within the above range in order to impart electrical conductivity without impairing the white color tone of alkali titanate. If the heating and baking time is shorter than the above, the desired modified alkali titanate cannot be obtained.
If the heating and baking time is too long, it will gradually become colored and lose its whiteness, which is not preferable.
以下に実施例を掲げてより一層明らかにする。 This will become clearer with examples below.
実施例 １
チタン酸カリ（大塚化学薬品(株)製、テイスモ
Ｄ）５ｇを30mlの白金製の容器にみたし、シリコ
ニツト製管状電気炉内に移し、室温で窒素ガスを
150ml／分の流量で約１時間流し雰囲気調整後窒
素導入下で500℃まで昇温させた。Example 1 5 g of potassium titanate (manufactured by Otsuka Chemical Co., Ltd., Teismo D) was placed in a 30 ml platinum container, transferred to a siliconite tubular electric furnace, and nitrogen gas was introduced at room temperature.
After adjusting the atmosphere by flowing at a flow rate of 150 ml/min for about 1 hour, the temperature was raised to 500° C. while introducing nitrogen.
次いで導入ガスを水素ガスに切り換え、水素ガ
スを流量150ml／分で導入下900℃で１時間保持
後、電気炉の電源を切つて、水素を流したまゝ放
冷し、200℃で導入ガスを窒素ガスに切り換えた
のち、炉外に取り出した。 Next, the introduced gas was changed to hydrogen gas, hydrogen gas was introduced at a flow rate of 150 ml/min, and the temperature was maintained at 900°C for 1 hour.The electric furnace was then turned off and the furnace was allowed to cool while the hydrogen was flowing, and the introduced gas was heated to 200°C. After switching to nitrogen gas, it was taken out of the furnace.
上述方法で還元処理することにより、チタン酸
カリはわずかに青色に帯色した白色の還元チタン
酸カリウムが得られた。 By reducing the potassium titanate using the method described above, a white reduced potassium titanate with a slight blue color was obtained.
上記で得た還元チタン酸カリ90部、流動パラフ
イン10部を乳鉢で良く混合後内径10mm、長さ20mm
の金型にて50Kg／cm2で10分間、加圧成型後、成型
体の両面に銀ペーストを塗布後、デジタルマルチ
メータ（タケダ理研社製）を用い導電性を測定し
たところ9.60×105Ωであり、下式を用いて体積
抵抗率は３・77×105Ωcmであつた。 After thoroughly mixing 90 parts of reduced potassium titanate obtained above and 10 parts of liquid paraffin in a mortar, the inner diameter is 10 mm and the length is 20 mm.
After pressure molding in a mold at 50 kg/cm 2 for 10 minutes, silver paste was applied to both sides of the molded product, and the conductivity was measured using a digital multimeter (manufactured by Takeda Riken Co., Ltd.). It was 9.60 × 10 5 Ω, and the volume resistivity was 3.77×10 5 Ωcm using the following formula.
体積抵抗率＝測定抵抗（Ω）×電極面積（cm2）／電
極間距離（cm）
実施例 ２
実施例１に於て導入ガスを水素ガスに切り換
え、水素ガスを150ml／分で導入下850℃で1.5時
間保持した以外実施例１と同法で行いわずかに青
色に帯色した白色の還元チタン酸カリウムが得ら
れた。 Volume resistivity = Measured resistance (Ω) × Electrode area (cm 2 ) / Distance between electrodes (cm) Example 2 In Example 1, the introduced gas was changed to hydrogen gas, and hydrogen gas was introduced at a rate of 150 ml/min. The same method as in Example 1 was followed except that the mixture was held at ℃ for 1.5 hours, and a white reduced potassium titanate with a slight blue tinge was obtained.
以下実施例１と同法で体積抵抗率を測定したと
ころ、成型体の抵抗の測定値は1.79×106Ωであ
り、体積抵抗率は7.03×105Ωcmであつた。 The volume resistivity was measured using the same method as in Example 1, and the measured resistance of the molded product was 1.79×10 6 Ω, and the volume resistivity was 7.03×10 5 Ωcm.
Claims (1)
す。〕 で表わされるチタン酸アルカリを水素雰囲気下
500〜1100℃で加熱焼成して一般式 M2O・nTiO2-x 〔式中ｘは２以下の正の実数を示す。Ｍ及びｎは
前記に同じ。〕 で表わされる変成チタン酸アルカリを得ることを
特徴とする変成チタン酸アルカリの製造法。 ２ チタン酸アルカリが繊維状である特許請求の
範囲第１項記載の方法。 ３ 繊維状チタン酸アルカリが繊維長5μｍ以上、
アスペクト比20以上のものである特許請求の範囲
第２項記載の方法。[Claims] 1 General formula M 2 O·nTiO 2 [In the formula, M represents an alkali metal and n represents an integer of 1 to 12. ] In a hydrogen atmosphere, an alkali titanate represented by
The product is heated and fired at 500 to 1100°C to obtain the general formula M 2 O·nTiO 2-x [wherein x represents a positive real number of 2 or less]. M and n are the same as above. ] A method for producing a modified alkali titanate, which comprises obtaining a modified alkali titanate represented by: 2. The method according to claim 1, wherein the alkali titanate is fibrous. 3 The fibrous alkali titanate has a fiber length of 5 μm or more,
The method according to claim 2, wherein the aspect ratio is 20 or more.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21837183A JPS60112617A (en) | 1983-11-18 | 1983-11-18 | Preparation of modified alkali titanate |
| DE19843441854 DE3441854A1 (en) | 1983-11-18 | 1984-11-15 | METAMORPHAL ALKALINE METAL TITANATES AND METHOD FOR THE PRODUCTION THEREOF |
| GB08429089A GB2150543B (en) | 1983-11-18 | 1984-11-16 | Metamorphosed alkali metal titanates |
| FR8417619A FR2555155B1 (en) | 1983-11-18 | 1984-11-19 | MODIFIED ALKALI METAL TITANATES AND PROCESS FOR THEIR PREPARATION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21837183A JPS60112617A (en) | 1983-11-18 | 1983-11-18 | Preparation of modified alkali titanate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60112617A JPS60112617A (en) | 1985-06-19 |
| JPH0352411B2 true JPH0352411B2 (en) | 1991-08-09 |
Family
ID=16718843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21837183A Granted JPS60112617A (en) | 1983-11-18 | 1983-11-18 | Preparation of modified alkali titanate |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS60112617A (en) |
| DE (1) | DE3441854A1 (en) |
| FR (1) | FR2555155B1 (en) |
| GB (1) | GB2150543B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61182411A (en) * | 1985-02-07 | 1986-08-15 | Sankei Giken Kogyo Kk | Silencer for internal-combustion engine |
| JPH0618084B2 (en) * | 1986-03-10 | 1994-03-09 | 大塚化学株式会社 | Composition for conductive sheet molding compound |
| CN101262941B (en) | 2005-09-16 | 2012-06-13 | 学校法人中央大学 | Carbon dioxide absorbing material, method for producing carbon dioxide absorbing material, method for absorbing carbon dioxide, and apparatus for absorbing carbon dioxide |
| DE102010062713A1 (en) * | 2010-12-09 | 2012-06-14 | Robert Bosch Gmbh | Sodium-chalcogen cell |
| JP2019210155A (en) * | 2018-05-31 | 2019-12-12 | 大塚化学株式会社 | Pigment particles, production method thereof and coating composition |
| JP2020033198A (en) * | 2018-08-27 | 2020-03-05 | 大塚化学株式会社 | Pigment particle and producing method thereof, and coating composition |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB849938A (en) * | 1957-10-30 | 1960-09-28 | Nat Res Dev | Dielectric ceramic compositions and the method of production thereof |
| JPS5849621A (en) * | 1981-09-17 | 1983-03-23 | Otsuka Chem Co Ltd | Amorphous alkali titanate material and its preparation |
| JPS5869799A (en) * | 1981-10-16 | 1983-04-26 | Natl Inst For Res In Inorg Mater | Production of fibrous potassium titanate |
-
1983
- 1983-11-18 JP JP21837183A patent/JPS60112617A/en active Granted
-
1984
- 1984-11-15 DE DE19843441854 patent/DE3441854A1/en active Granted
- 1984-11-16 GB GB08429089A patent/GB2150543B/en not_active Expired
- 1984-11-19 FR FR8417619A patent/FR2555155B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2555155A1 (en) | 1985-05-24 |
| GB2150543B (en) | 1987-06-03 |
| DE3441854C2 (en) | 1989-07-13 |
| JPS60112617A (en) | 1985-06-19 |
| GB8429089D0 (en) | 1984-12-27 |
| GB2150543A (en) | 1985-07-03 |
| FR2555155B1 (en) | 1987-07-17 |
| DE3441854A1 (en) | 1985-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1453799A (en) | Composite conducting ceramic and its prepn | |
| JPH0352411B2 (en) | ||
| Itai et al. | Electrical resistivity of magnetite anodes | |
| JPH044974B2 (en) | ||
| US3027332A (en) | Heat resisting materials and methods for their manufacture | |
| JPH03140369A (en) | Electrically conductive resin composition | |
| JPS589782B2 (en) | Refractory products and manufacturing methods | |
| US4609694A (en) | Process for preparing metamorphosed alkaline titanates | |
| JPH0380724B2 (en) | ||
| JPH0433732B2 (en) | ||
| JP2522923B2 (en) | Modified magnesium borate and method for producing the same | |
| US3348917A (en) | Glass containing dissolved carbon, methods of making and using, and obtaining graphite | |
| JPS6120508B2 (en) | ||
| JPH0575698B2 (en) | ||
| GB2150546A (en) | A process for preparing metamorphosed metal oxides | |
| US1084199A (en) | Fireproof electrically-conducting bodies and process of manufacturing the same. | |
| JPS62205144A (en) | Electrically conductive sheet | |
| JPH0621036B2 (en) | Conductive titanate derivative and method for producing the same | |
| JPH0522649B2 (en) | ||
| JPS616125A (en) | Manufacture of reduced alkali metal titanate | |
| JP3618369B2 (en) | Ceramic heating element | |
| JPH0347292B2 (en) | ||
| JPS62129370A (en) | Production of pencil lead | |
| JPS6137835A (en) | Conductive polyvinyl chloride plastisol composition | |
| RU2159476C2 (en) | Compound for producing resistive film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |