JP3138444B2 - Electrical insulating material composition - Google Patents
Electrical insulating material compositionInfo
- Publication number
- JP3138444B2 JP3138444B2 JP10023090A JP2309098A JP3138444B2 JP 3138444 B2 JP3138444 B2 JP 3138444B2 JP 10023090 A JP10023090 A JP 10023090A JP 2309098 A JP2309098 A JP 2309098A JP 3138444 B2 JP3138444 B2 JP 3138444B2
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- Prior art keywords
- boric acid
- weight
- sand
- insulating
- insulating material
- Prior art date
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Description
【０００１】この発明は、電気配線を熱から保護する必
要のある電気炉や電気機器その他の絶縁を要する容器内
に用いる断熱電気絶縁体組成物の材料である電気絶縁材
料組成物に関する。[0001] The present invention relates to an electric insulating material which is a material of a heat insulating electric insulating composition used in electric furnaces, electric equipment, and other containers requiring insulation, which need to protect electric wiring from heat.
Material composition .
【０００２】[0002]
【従来の技術】一般に、不定形断熱絶縁材料として、絶
縁性の無機材料からなる砂に絶縁性の有機材料であるフ
ェノール樹脂、シリコーン樹脂、ポリイミド樹脂などの
熱硬化性樹脂、または耐熱性の四フッ化エチレン樹脂な
どの熱可塑性樹脂を混合したものが知られている。2. Description of the Related Art In general, an amorphous insulating material such as a thermosetting resin such as a phenol resin, a silicone resin, a polyimide resin or the like, which is an insulating organic material, is used as an amorphous insulating material. What mixed a thermoplastic resin, such as a fluorinated ethylene resin, is known.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記したよう
な熱硬化性・熱可塑性樹脂からなる従来の不定形断熱絶
縁材料は、複雑な形状の容器内に均一に収容することが
困難であること、高温の使用条件では分解ガスが発生す
ること、長期間高温状態で使用すると強度劣化して保形
性がなくなること、またはその有機質成分がカーボン化
して絶縁性が低下するという問題点がある。However, it is difficult to uniformly accommodate the conventional amorphous insulating material made of a thermosetting / thermoplastic resin as described above in a container having a complicated shape. In addition, there is a problem that decomposition gas is generated under high-temperature use conditions, that when used in a high-temperature state for a long period of time, the strength is deteriorated and the shape retention is lost, or that the organic component is carbonized and the insulation property is reduced.
【０００４】そして、このような状態で断熱絶縁材料を
収容した機器を使用すると、絶縁性不良や断熱不良が起
こり、機器本来の機能が低下するという問題が発生す
る。[0004] When a device containing a heat-insulating insulating material is used in such a state, poor insulation or poor heat insulation occurs, causing a problem that the original function of the device is reduced.
【０００５】そこで、この発明の課題は上記した問題点
を解決して、断熱電気絶縁体を、容器内に保持された状
態で例えば輸送した場合でも容器内で偏らず、すなわち
適当な強度で保形性があり、しかも優れた体積抵抗およ
び耐電圧特性のある断熱電気絶縁体として使用できるも
のとし、また従来の絶縁材料の問題点であった長期間高
温状態で使用すると強度劣化して保形性がなくなるとい
う点を解決することである。[0005] Therefore, an object of the present invention is to solve the above-mentioned problems, and to maintain a heat-insulating electrical insulator in a container even when it is transported, for example, in a state of being held in the container, that is, with an appropriate strength . There the shape of, yet superior volume resistivity and a withstand voltage characteristic and shall be used as a heat-insulating electrical insulator, also long term net was a problem of a conventional insulating material
When used in a hot state, strength deteriorates and shape retention is lost
Is to solve the problem .
【０００６】[0006]
【課題を解決するための手段】上記の課題を解決するた
め、この発明においては、高温２次電池の集合体におけ
る各単電池間に充填して固定する電気絶縁材料であっ
て、ホウ酸 、 金属酸化物および酸化ホウ素を必須成分と
し、平均粒径５０〜２０００μｍの絶縁砂１００重量部
に対して、ホウ酸：金属酸化物：酸化ホウ素を重量比で
１６〜７５：１６〜６０：６７以下の範囲で混合した無
機結合剤を、前記ホウ酸１．０〜３０重量部となるよう
に配合した砂状の電気絶縁材料組成物としたのである。In order to solve the above-mentioned problems, the present invention provides an electric insulating material which is filled and fixed between cells in a high-temperature secondary battery assembly, comprising boric acid , Metal oxide and boron oxide as essential components
And, with respect to the average particle diameter insulating sand 100 parts by weight of 50 to 2000 m, boric acid: metal oxides: boron oxide in a weight ratio of 16-75: 16-60: 67 inorganic binder were mixed at the following range And a sand-like electric insulating material composition mixed so as to be 1.0 to 30 parts by weight of boric acid.
【０００７】または、高温２次電池の集合体における各
単電池間に充填して固定する電気絶縁材料であって、ホ
ウ酸 、 金属酸化物および酸化ホウ素を必須成分とし、平
均粒径５０〜２０００μｍの絶縁砂１００重量部に対し
て、ホウ酸：金属酸化物：酸化ホウ素を重量比で１６〜
７５：１６〜６０：６７以下の範囲で混合した無機結合
剤を、前記ホウ酸１．０〜３０重量部となるように配合
し、さらにシリコーン樹脂を０．０５〜０．８重量部配
合した砂状の電気絶縁材料組成物としたのである。[0007] Alternatively, an electrically insulating material and fixed to fill between each cell in the set of high-temperature secondary battery, Ho
Boric acid , metal oxide, and boron oxide are essential components, and boric acid: metal oxide: boron oxide is used in a weight ratio of 16 to 100 parts by weight of insulating sand having an average particle size of 50 to 2000 μm.
An inorganic binder mixed in the range of 75:16 to 60:67 or less was blended so as to be 1.0 to 30 parts by weight of boric acid, and 0.05 to 0.8 part by weight of a silicone resin was further blended. Thus, a sand-like electric insulating material composition was obtained.
【０００８】[0008]
【作用】この発明の断熱電気絶縁体材料は、主成分の絶
縁砂に対して、ホウ酸、金属酸化物および酸化ホウ素を
それぞれ所定量配合して砂状の組成物（混合物）を材料
とする。このものは適当な砂状であって流動性があり、
任意形状の容器内に充填することができる。According to the heat insulating electric insulator material of the present invention, a predetermined amount of boric acid, metal oxide and boron oxide are blended with insulating sand as a main component to obtain a sand-like composition (mixture). . It is suitable sandy and fluid,
It can be filled into containers of any shape.
【０００９】そして、上記した砂状の混合物は、所定温
度に加熱すると、ホウ酸、金属酸化物および酸化ホウ素
が化学的かつ物理的に絶縁砂同士を結合する。すなわち
これらの無機結合剤は、溶融すると共に絶縁砂の表面と
の化学的結合および物理的作用で、所要形状の断熱電気
絶縁体材料を一定の形状に硬化させるのである。When the above-mentioned sandy mixture is heated to a predetermined temperature, boric acid, metal oxide and boron oxide chemically and physically bind insulating sands to each other. That is, these inorganic binders melt and harden the desired shape of the insulating electrical insulator material into a certain shape by chemical bonding and physical action with the surface of the insulating sand.
【００１０】[0010]
【実施例】この発明に用いる絶縁砂は、絶縁性を有する
無機物であり、電気絶縁性に悪影響を与える物質、すな
わち鉄、銅、ニッケルなどの金属成分、水酸化物、また
は熱処理によってカーボン化して導電性物質に変化する
成分を含まないものである。そして、このような絶縁砂
は、通常、電気機器などの使用時の内部温度が３１０〜
３３０℃程度の高温となることから、３００℃程度で軟
化しない流動性のある粉粒状のものを採用する。このよ
うな絶縁砂は、高温２次電池の集合電池において、各単
電池間に充填して固定する材料にも適用できる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The insulating sand used in the present invention is an inorganic substance having an insulating property, and is a substance which has a bad influence on electric insulating properties, that is, a metal component such as iron, copper, nickel, hydroxide, or carbonized by heat treatment. It does not contain a component that changes into a conductive substance. And such an insulating sand usually has an internal temperature of 310 to 310 at the time of use of electric equipment and the like.
Since the temperature is raised to about 330 ° C., a fluid and granular material which does not soften at about 300 ° C. is adopted. Such insulating sand can also be applied to a material that is filled and fixed between cells in a battery assembly of a high-temperature secondary battery.
【００１１】このような物性を有する絶縁砂の具体例と
しては、珪石砂、フラタリーサンド、ムライト、マグネ
シウムクリンカー、ジルコンサンド、ガラスビーズ、シ
リカサンドなどが挙げられる。Specific examples of the insulating sand having such physical properties include silica sand, flat sand, mullite, magnesium clinker, zircon sand, glass beads, silica sand, and the like.
【００１２】このような絶縁砂の好適に使用できる絶縁
砂の平均粒径は、５０〜２０００μｍ程度の粉末状のも
のである。５０μｍ未満の微粉末では、流動性が悪くな
って形状複雑な容器の細部まで充填できないことがあ
り、２０００μｍを越える大径では、空隙が多くなり、
強度、絶縁性、断熱特性のバラツキが大きくなって好ま
しくないからである。The average particle size of the insulating sand which can be preferably used as such insulating sand is a powder having a particle size of about 50 to 2000 μm. In the case of fine powder of less than 50 μm, the fluidity deteriorates and it may not be possible to fill the details of a container having a complicated shape, and in the case of a large diameter exceeding 2000 μm, voids increase,
This is because the dispersion of the strength, insulation properties, and heat insulation properties becomes large, which is not preferable.
【００１３】この発明に用いる無機結合剤は、ホウ酸、
金属酸化物、酸化ホウ素である。このうち、ホウ酸とし
ては、オルトホウ酸、メタホウ酸、四ホウ酸などであ
り、これらは三酸化二ホウ素が水化して生ずる酸素酸と
して総称されるものである。The inorganic binder used in the present invention is boric acid,
Metal oxide and boron oxide. Among these, boric acid includes orthoboric acid, metaboric acid, tetraboric acid, and the like, which are collectively referred to as oxygen acids generated by hydration of diboron trioxide.
【００１４】金属酸化物は、ホウ酸と化合する酸化物で
あって、例えば酸化マグネシウム、酸化亜鉛、酸化カル
シウム、酸化バリウム、酸化鉛などが挙げられる。この
うち、酸化マグネシウム、酸化亜鉛については特に好ま
しい結果を得ている。The metal oxide is an oxide that combines with boric acid, and examples thereof include magnesium oxide, zinc oxide, calcium oxide, barium oxide, and lead oxide. Of these, magnesium oxide and zinc oxide have obtained particularly favorable results.
【００１５】ホウ酸：金属酸化物：酸化ホウ素の配合割
合は、絶縁砂１００重量部に対して１６〜７５：１６〜
６０：０〜６７の範囲である。なぜなら、ホウ酸が所定
量未満では結合力がなくなり、保形性が保てないので好
ましくなく、また所定量を越えて多量に配合すると、ホ
ウ酸から発生する水分によって発泡現象が現れ、絶縁砂
と結合剤の層分離が起こるので好ましくない。The mixing ratio of boric acid: metal oxide: boron oxide is 16 to 75:16 to 100 parts by weight of insulating sand.
60: 0 to 67. If the amount of boric acid is less than the predetermined amount, the bonding strength is lost and the shape retention cannot be maintained, which is not preferable.If the amount exceeds the predetermined amount, the foaming phenomenon appears due to the moisture generated from boric acid, and the insulating sand This is not preferable because layer separation of the binder occurs.
【００１６】金属酸化物が所定量未満では、結合力は発
現するが高温時に軟化して好ましくなく、所定量を越え
て多量に配合すると、結合剤が溶融せず所要の結合力が
得られないので好ましくない。When the amount of the metal oxide is less than the predetermined amount, the bonding strength is exhibited, but it is unfavorable because of softening at a high temperature. When the amount exceeds the predetermined amount, the binder does not melt and the required bonding force cannot be obtained. It is not preferable.
【００１７】ホウ酸は、同量のメタホウ酸を置き換えて
用いてもよいが、この場合には所要の強度は得難い。Although boric acid may be used in place of the same amount of metaboric acid, the required strength is hardly obtained in this case.
【００１８】以上のような組成からなる無機結合剤は、
絶縁砂１００重量部に対して、前記ホウ酸が１．０〜３
０重量部となるように配合する。このような所定配合範
囲未満では、硬化後の絶縁体組成物に保形性を維持する
強度が得られない。また、所定量を越えて多量に配合す
ると、絶縁砂と無機結合剤、またはシリコーン樹脂を添
加した結合剤（無機有機結合剤）と絶縁砂が分離して均
質な成形体がえられない。The inorganic binder having the above composition is as follows:
The boric acid is added in an amount of 1.0 to 3 with respect to 100 parts by weight of insulating sand.
It is blended to be 0 parts by weight. If the amount is less than the predetermined range, the insulating composition after curing cannot have sufficient strength to maintain shape retention. If the amount is more than a predetermined amount, the insulating sand and the inorganic binder, or the binder (inorganic organic binder) to which the silicone resin is added and the insulating sand are separated from each other, and a uniform molded body cannot be obtained.
【００１９】また、上記の無機結合剤には、さらにシリ
コーン樹脂を０．０５〜０．８重量部添加してもよい。
このような所定量の配合により、無機結合剤のみを配合
した場合に比べて絶縁性および強度は向上する。０．０
５重量部未満の少量では、そのような絶縁性の向上はな
く、０．８重量部を越える多量を配合すると形状が維持
できず、すなわち所要の保形性が得られなかった。The above-mentioned inorganic binder may further contain 0.05 to 0.8 parts by weight of a silicone resin.
By such a predetermined amount, the insulating property and the strength are improved as compared with the case where only the inorganic binder is compounded. 0.0
If the amount is less than 5 parts by weight, there is no such improvement in insulation. If the amount exceeds 0.8 parts by weight, the shape cannot be maintained, that is, the required shape retention cannot be obtained.
【００２０】〔実施例１〜７、比較例１〜６〕 表１または表２に示す配合割合（重量部）で原材料を混
合し、ステンレス製の容器に充填し、常温から３３０℃
まで８時間かけて昇温し、３３０℃で２時間加熱状態を
保持した後、常温まで自然冷却して断熱電気絶縁体組成
物を得た。[Examples 1 to 7 and Comparative Examples 1 to 6] Raw materials were mixed in the mixing ratio (parts by weight) shown in Table 1 or Table 2 and filled in a stainless steel container.
After heating for 8 hours and maintaining the heating state at 330 ° C. for 2 hours, the mixture was naturally cooled to room temperature to obtain a heat insulating electrical insulator composition.
【００２１】また、全く同様の条件で製造した断熱電気
絶縁体組成物の試験片について、以下の試験を行ない結
果を表１または表２中に併記した。Further, the following tests were performed on test pieces of the heat insulating electrical insulator composition manufactured under exactly the same conditions, and the results are also shown in Table 1 or Table 2.
【００２２】（ａ）圧縮強度 直径４５ｍｍ、長さ３０ｍｍの試験片を用い、その軸方
向からクロスヘッドを１ｍｍ／分の速度で圧接させ、オ
ートグラフによって負荷した荷重を測定し、圧縮強度
（ｋｇｆ／ｃｍ2 ）を求めた。(A) Compressive strength Using a test piece having a diameter of 45 mm and a length of 30 mm, the crosshead was pressed against the axial direction at a speed of 1 mm / min, the load applied was measured by an autograph, and the compressive strength (kgf / Cm 2 ).
【００２３】（ｂ）体積抵抗 ＳＵＳ製で厚さ１ｍｍ×φ６０ｍｍの円板状電極間に断
熱電気絶縁体の材料を厚さ２ｍｍとなるように挟持し、
常温から３３０℃まで８時間かけて昇温し、３３０℃で
２時間加熱状態を保持した後、常温まで自然冷却して断
熱電気絶縁体の試料とし、絶縁抵抗計によって両極間の
２０℃、３２０℃、４００℃における体積抵抗値（Ω−
ｃｍ）を測定した。(B) Volume resistance A material of a heat insulating electrical insulator is sandwiched between disk-shaped electrodes made of SUS and having a thickness of 1 mm × φ60 mm so as to have a thickness of 2 mm.
The temperature was raised from room temperature to 330 ° C. over 8 hours, and after maintaining the heating state at 330 ° C. for 2 hours, it was naturally cooled to room temperature to obtain a sample of an adiabatic electric insulator. ° C, 400 ° C volume resistivity (Ω-
cm).
【００２４】（ｃ）耐電圧 ＳＵＳ製で厚さ１ｍｍ×φ６０ｍｍの円板状電極間に断
熱電気絶縁体の材料を厚さ５ｍｍとなるように挟持し、
常温から３３０℃まで８時間かけて昇温し、３３０℃で
２時間加熱状態を保持した後、常温まで自然冷却して断
熱電気絶縁体の試料とし、耐電圧計によって両極間の２
０℃、３２０℃、４００℃における耐電圧（Ｖ）を測定
した。(C) Withstand voltage A material of a heat insulating electric insulator is sandwiched between disk-shaped electrodes made of SUS and having a thickness of 1 mm × φ60 mm so as to have a thickness of 5 mm.
The temperature was raised from room temperature to 330 ° C. over 8 hours, and after maintaining the heating state at 330 ° C. for 2 hours, the sample was naturally cooled to room temperature to obtain a sample of an adiabatic electric insulator.
The withstand voltage (V) at 0 ° C., 320 ° C., and 400 ° C. was measured.
【００２５】[0025]
【表１】 [Table 1]
【００２６】[0026]
【表２】 [Table 2]
【００２７】表２の結果からも明らかなように、ホウ酸
を含有しない比較例１は、成形体が得られなかった。無
機結合剤として酸化ホウ素を単独で使用した比較例２、
３または酸化ホウ素と金属酸化物（酸化マグネシウム）
を５〜１２重量部の範囲で配合した比較例４では、加熱
時に成形体が軟化する（比較例２、３）か、または成形
体がえられなかった（比較例３）。As is clear from the results shown in Table 2, no molded product was obtained in Comparative Example 1 containing no boric acid. Comparative Example 2 using boron oxide alone as an inorganic binder,
3 or boron oxide and metal oxide (magnesium oxide)
In the case of Comparative Example 4 in which was added in the range of 5 to 12 parts by weight, the molded article softened when heated (Comparative Examples 2 and 3) or the molded article was not obtained (Comparative Example 3).
【００２８】また、ホウ酸を単独で５〜１０重量部使用
した比較例５、６は、強度は発現するが、絶縁砂とホウ
素が分離発泡し、均一な成形体を得ることが困難であ
り、この場合は強度が発現しても感熱された場合に軟化
して、形状を維持できず使用に耐えないものであった。In Comparative Examples 5 and 6, in which boric acid alone was used in an amount of 5 to 10 parts by weight, strength was exhibited, but insulating sand and boron separated and foamed, making it difficult to obtain a uniform molded body. In this case, even when the strength was developed, it was softened when heated, and could not maintain its shape and could not be used.
【００２９】これに対して無機結合剤を用いた場合の全
ての条件を満足する実施例１〜７は、表１の結果からも
明らかなように、適当な強度を有して保形されており、
しかも優れた体積抵抗および耐電圧特性を有した。On the other hand, Examples 1 to 7 satisfying all the conditions when the inorganic binder is used are, as is clear from the results in Table 1, formed with a suitable strength. Yes,
Moreover, it had excellent volume resistance and withstand voltage characteristics.
【００３０】〔実施例８〜１１、比較例７、８〕 表３に示す配合割合（重量部）で原材料を混合し、ステ
ンレス性の容器に充填して常温から３３０℃まで８時間
かけて昇温し、３３０℃で２時間加熱状態を保持した
後、常温まで自然冷却して断熱電気絶縁体組成物を得
た。Examples 8 to 11 , Comparative Examples 7 and 8 Raw materials were mixed at the mixing ratio (parts by weight) shown in Table 3, filled in a stainless steel container, and raised from room temperature to 330 ° C. over 8 hours. After heating and maintaining the heating state at 330 ° C. for 2 hours, the mixture was naturally cooled to room temperature to obtain a heat insulating electric insulator composition.
【００３１】また、全く同様の条件で製造した断熱電気
絶縁体組成物の試験片について、前記した試験（ａ）、
（ｂ）、（ｃ）を行ない結果を表３中に併記した。The test (a) described above was performed on test pieces of the heat insulating electrical insulator composition manufactured under exactly the same conditions.
The results obtained by performing (b) and (c) are also shown in Table 3.
【００３２】[0032]
【表３】 [Table 3]
【００３３】表３の結果からも明らかなように、ホウ酸
を含有しない比較例７、８は成形体が得られなかった。As is clear from the results in Table 3, no molded articles were obtained in Comparative Examples 7 and 8 containing no boric acid.
【００３４】これに対して無機結合剤を用いた場合の全
ての条件を満足する実施例８〜１１は、適当な強度を有
して保形されており、しかも優れた体積抵抗および耐電
圧特性を有した。On the other hand, in Examples 8 to 11 , which satisfy all the conditions when the inorganic binder is used, the shape is maintained with appropriate strength, and the volume resistance and the withstand voltage characteristics are excellent. It had.
【００３５】〔比較例９〜１１〕 表４に示す配合割合（重量部）で原材料を混合し、ステ
ンレス製の容器に充填して常温から３３０℃まで８時間
かけて昇温し、３３０℃で２時間加熱状態を保持した
後、常温まで自然冷却して断熱電気絶縁体組成物を得
た。[0035] [ratio Comparative Examples 9-11] Table mixing raw materials 4 in the proportions shown (parts by weight), the temperature was raised over a period of 8 hours from room temperature to 330 ° C. and filled in a stainless steel vessel, 330 ° C. , And then cooled naturally to room temperature to obtain a heat insulating electrical insulator composition.
【００３６】[0036]
【００３７】[0037]
【表４】 [Table 4]
【００３８】表４の結果からも明らかなように、酸化ホ
ウ素を含有しない比較例１０または金属酸化物を有しな
い比較例９、１１は成形体が得られなかった。As is clear from the results shown in Table 4, no molded product was obtained in Comparative Example 10 containing no boron oxide or Comparative Examples 9 and 11 containing no metal oxide.
【００３９】[0039]
【００４０】この発明は、以上説明したように、絶縁砂
に対して、ホウ酸、金属酸化物および酸化ホウ素をそれ
ぞれ所定量配合した砂状の電気絶縁材料組成物としたの
で、このものは適当な流動性を有して任意形状の容器内
に充填することができる。そして、加熱硬化した絶縁体
は、容器内に保持された状態で輸送しても偏らず、すな
わち適当な強度を有して保形されており、しかも優れた
体積抵抗および耐電圧特性を有するという利点がある。[0040] The present invention, As described above, the insulating sand, boric acid, since the metal oxides and sandy electrical insulating material composition boron oxide were respectively predetermined amount, that this it can be filled in a container having an arbitrary shape with a proper fluidity. Then, the heat-cured insulator is not biased even when transported in a state of being held in the container, that is, it is kept with appropriate strength, and has excellent volume resistance and withstand voltage characteristics. There are advantages.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 35/00 C01B 35/10 H01B 3/12 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) C04B 35/00 C01B 35/10 H01B 3/12
Claims (2)
間に充填して固定する電気絶縁材料であって、ホウ酸 、
金属酸化物および酸化ホウ素を必須成分とし、平均粒径
５０〜２０００μｍの絶縁砂１００重量部に対して、ホ
ウ酸：金属酸化物：酸化ホウ素を重量比で１６〜７５：
１６〜６０：６７以下の範囲で混合した無機結合剤を、
前記ホウ酸１．０〜３０重量部となるように配合した砂
状の電気絶縁材料組成物。An electric insulating material filled and fixed between each unit cell in an assembly of a high-temperature secondary battery, comprising boric acid ,
Metal oxide and boron oxide are essential components, and boric acid: metal oxide: boron oxide is used in a weight ratio of 16 to 75 with respect to 100 parts by weight of insulating sand having an average particle size of 50 to 2000 μm.
16 to 60: an inorganic binder mixed in a range of 67 or less ,
A sand-like electric insulating material composition mixed so as to be 1.0 to 30 parts by weight of the boric acid.
間に充填して固定する電気絶縁材料であって、ホウ酸 、
金属酸化物および酸化ホウ素を必須成分とし、平均粒径
５０〜２０００μｍの絶縁砂１００重量部に対して、ホ
ウ酸：金属酸化物：酸化ホウ素を重量比で１６〜７５：
１６〜６０：６７以下の範囲で混合した無機結合剤を、
前記ホウ酸１．０〜３０重量部となるように配合し、さ
らにシリコーン樹脂を０．０５〜０．８重量部配合した
砂状の電気絶縁材料組成物。2. An electric insulating material that is filled and fixed between cells in an assembly of high temperature secondary batteries, comprising boric acid ,
Metal oxide and boron oxide are essential components, and boric acid: metal oxide: boron oxide is used in a weight ratio of 16 to 75 with respect to 100 parts by weight of insulating sand having an average particle size of 50 to 2000 μm.
16 to 60: an inorganic binder mixed in a range of 67 or less ,
A sand-like electric insulating material composition containing 1.0 to 30 parts by weight of the boric acid and 0.05 to 0.8 part by weight of a silicone resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10023090A JP3138444B2 (en) | 1998-02-04 | 1998-02-04 | Electrical insulating material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10023090A JP3138444B2 (en) | 1998-02-04 | 1998-02-04 | Electrical insulating material composition |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7011756A Division JP3007548B2 (en) | 1995-01-27 | 1995-01-27 | Insulated electrical insulator composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10273363A JPH10273363A (en) | 1998-10-13 |
| JP3138444B2 true JP3138444B2 (en) | 2001-02-26 |
Family
ID=12100740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10023090A Expired - Fee Related JP3138444B2 (en) | 1998-02-04 | 1998-02-04 | Electrical insulating material composition |
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| Country | Link |
|---|---|
| JP (1) | JP3138444B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101697182B1 (en) * | 2014-12-31 | 2017-01-17 | 한덕환 | Insulator for cable |
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1998
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| Publication number | Publication date |
|---|---|
| JPH10273363A (en) | 1998-10-13 |
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