JPH09157032A - Ceramic slurry composition - Google Patents

Ceramic slurry composition

Info

Publication number
JPH09157032A
JPH09157032A JP7317652A JP31765295A JPH09157032A JP H09157032 A JPH09157032 A JP H09157032A JP 7317652 A JP7317652 A JP 7317652A JP 31765295 A JP31765295 A JP 31765295A JP H09157032 A JPH09157032 A JP H09157032A
Authority
JP
Japan
Prior art keywords
ceramic
green sheet
surfactant
polyester film
compsn
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.)
Pending
Application number
JP7317652A
Other languages
Japanese (ja)
Inventor
Yasuto Kudo
康人 工藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP7317652A priority Critical patent/JPH09157032A/en
Publication of JPH09157032A publication Critical patent/JPH09157032A/en
Pending legal-status Critical Current

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  • Production Of Multi-Layered Print Wiring Board (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain a compsn. ensuring superior releasability by blending ceramic powder with a binder, a solvent and a specified amt. of a surfactant. SOLUTION: A blend is prepd. by blending 100 pts.wt. ceramic powder such as alumina powder with a binder such as polyvinyl butyral, a solvent such as isopropanol and 1.5-4 pts.wt. ionic surfactant such as an alkylbenzenesulfonate or nonionic surfactant such as a polyoxyethylene alkyl ether. The blend is mixed by means of a ball mill, etc., to obtain the objective ceramic slurry compsn. When this compsn. is vacuum-defoamed and applied on a film with no silicone coat on the surface such as a polyester film by a doctor blade method, a green sheet excellent in releasability is formed.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、セラミック多層基
板、セラミック電子部品等に用いるためのセラミックグ
リーンシートを作製するのに好適なセラミックスラリー
組成物に関し、より詳しくは、シリコンコートのないポ
リエステルフィルムに直接キャスティングできて製造コ
ストが低減されるセラミックスラリー組成物に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic slurry composition suitable for producing a ceramic green sheet for use in a ceramic multilayer substrate, a ceramic electronic component, etc., and more particularly to a polyester film without a silicon coat. The present invention relates to a ceramic slurry composition that can be directly cast and can reduce manufacturing costs.

【0002】[0002]

【従来の技術】セラミック多層基板や多層セラミックコ
ンデンサは、電極を形成した複数のセラミックグリーン
シートを積層して焼成することによって製造されてい
る。前記セラミックグリーンシートは、セラミック粉
末、バインダ、溶剤、可塑剤をボールミル等で混合して
得たスラリーを、ドクターブレードを用いてポリエステ
ルフィルムの上にキャスティングし、乾燥し、乾燥後に
グリーンシートをポリエステルフィルムから剥離して製
造される。
2. Description of the Related Art Ceramic multilayer substrates and multilayer ceramic capacitors are manufactured by laminating and firing a plurality of ceramic green sheets having electrodes. The ceramic green sheet is prepared by mixing a ceramic powder, a binder, a solvent, and a plasticizer in a ball mill or the like to obtain a slurry, casting the slurry on a polyester film using a doctor blade, and drying the dried green sheet. It is manufactured by peeling from.

【0003】ここで、ポリエステルフィルム上にキャス
ティングされて乾燥したグリーンシートはポリエステル
フィルムに強く密着しており、容易に剥離できない。無
理に剥離しようとしてグリーンシートを破損する場合が
ある。そこで、ポリエステルフィルム表面にシリコンコ
ートし、剥離を容易にしていた。
The green sheet cast and dried on the polyester film adheres strongly to the polyester film and cannot be easily peeled off. The green sheet may be damaged by attempting to peel it off. Therefore, the surface of the polyester film is coated with silicon to facilitate peeling.

【0004】[0004]

【発明が解決しようとする課題】しかし、上述のポリエ
ステルフィルムの表面にシリコンコートする工程はコス
トがかかる。グリーンシート剥離後、シリコンコートし
たポリエステルフィルムを洗浄して再利用し、コスト低
減することも考えられているが、洗浄によりシリコンが
剥離していくため、再利用を繰り返すとグリーンシート
の不良が多発する。また、ポリエステルフィルム表面の
シリコンコートは加熱して行うためポリエステルフィル
ムに皺やうねりが生じやすく、フィルムを薄くすること
ができない。
However, the step of coating the surface of the polyester film with silicon is costly. After peeling off the green sheet, it is also considered to reduce the cost by cleaning and reusing the silicone-coated polyester film, but since silicon is peeled off by cleaning, repeated reuse causes frequent defects in the green sheet. To do. Further, since the silicon coating on the surface of the polyester film is performed by heating, wrinkles and waviness are likely to occur in the polyester film, and the film cannot be thinned.

【0005】そこで本発明は、シリコンコートのないポ
リエステルフィルムに直接キャスティングできて製造コ
ストが低減されるセラミックスラリー組成物を提供する
ことを目的とする。
Therefore, it is an object of the present invention to provide a ceramic slurry composition which can be directly cast on a polyester film having no silicon coating and which can be manufactured at a low cost.

【0006】[0006]

【課題を解決するための手段】上記目的を解決するため
の本発明のセラミックスラリー組成物は、セラミック粉
末、バインダ、溶剤及び界面活性剤からなるセラミック
スラリー組成物であって、該界面活性剤の添加量は該セ
ラミック粉末100重量部に対し1.5〜4重量部であ
ることを特徴とする。
The ceramic slurry composition of the present invention for solving the above-mentioned problems is a ceramic slurry composition comprising a ceramic powder, a binder, a solvent and a surfactant. The addition amount is 1.5 to 4 parts by weight with respect to 100 parts by weight of the ceramic powder.

【0007】[0007]

【発明の実施の形態】本発明において、セラミック粉末
は、従来より用いられている、例えばアルミナ粉末等が
利用でき、特に限定されない。
BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, as the ceramic powder, for example, alumina powder, which has been conventionally used, can be used and is not particularly limited.

【0008】バインダも、従来より用いられている、例
えばポリビニルブチラール、メタアクリルポリマー、ア
クリルポリマー等が利用でき、特に限定されない。
As the binder, conventionally used binders such as polyvinyl butyral, methacrylic polymer, acrylic polymer and the like can be used, and the binder is not particularly limited.

【0009】溶剤も、従来より用いられている、例えば
水、アルコール類、ケトン類、塩素系有機溶剤等が利用
でき、特に限定されない。また、フタル酸の誘導体等の
可塑剤を加えてもよい。
As the solvent, for example, water, alcohols, ketones, chlorine-based organic solvents and the like which have been conventionally used can be used and are not particularly limited. Further, a plasticizer such as a derivative of phthalic acid may be added.

【0010】界面活性剤は、イオン系、非イオン系のい
ずれも利用できる。例えば、アルキルベンゼンスルホン
酸塩、アルキルリン酸エステル塩、ポリオキシエチレン
アルキル硫酸エステル塩、ポリオキシエチレンアルキル
エーテル、ソルビタン脂肪酸エステル、アルキルアミン
塩、アルキルベタイン等が利用でき、特に限定されな
い。
As the surfactant, both ionic and nonionic surfactants can be used. For example, alkyl benzene sulfonate, alkyl phosphate ester salt, polyoxyethylene alkyl sulfate ester salt, polyoxyethylene alkyl ether, sorbitan fatty acid ester, alkyl amine salt, alkyl betaine and the like can be used and are not particularly limited.

【0011】界面活性剤の添加量は、セラミック粉末1
00重量部に対し1.5〜4重量部とする。1.5重量
部より少ないとグリーンシートのフィルムからの剥離性
が悪く、4重量部を超えるとグリーンシートの強度が低
下するためである。
The amount of the surfactant added is such that the ceramic powder 1
It is 1.5 to 4 parts by weight with respect to 00 parts by weight. If the amount is less than 1.5 parts by weight, the releasability of the green sheet from the film is poor, and if the amount exceeds 4 parts by weight, the strength of the green sheet decreases.

【0012】[0012]

【実施例】以下、本発明を実施例により説明する。昭和
電工(株)製、製品名Al−45−1、平均粒径1.7
μmのアルミナ粉末100重量部に対して、溶剤として
ポリビニルブチラール9重量部、イソプロピルアルコー
ル40重量部、トリクロロエタン20重量部を加え、更
に界面活性剤としてポリオキシエチレンノニルフェノー
ルエーテルを表1に示す割合で添加し、これをボールミ
ルで24時間混合してスラリーとした。このスラリーを
真空脱泡し、表面にシリコンコートしていない厚さ50
μmのポリエステルフィルム上に、公知のドクターブレ
ード法で約200μmのグリーンシートに成形した。
The present invention will be described below with reference to examples. Showa Denko KK, product name Al-45-1, average particle size 1.7
To 100 parts by weight of alumina powder of μm, 9 parts by weight of polyvinyl butyral, 40 parts by weight of isopropyl alcohol, and 20 parts by weight of trichloroethane were added as a solvent, and polyoxyethylene nonylphenol ether was added as a surfactant at a ratio shown in Table 1. Then, this was mixed with a ball mill for 24 hours to form a slurry. This slurry is vacuum degassed to a thickness of 50 without silicon coating on the surface.
A green sheet of about 200 μm was formed on a μm polyester film by a known doctor blade method.

【0013】乾燥後、剥離性の評価として、グリーンシ
ート上に一辺15cmの正方形状のハーフカットを金型
で入れ、その正方形のグリーンシートを剥離速度30c
m/秒で直角に剥離し、スムーズに剥離できるか否かを
評価した。表1にその結果を示す。表中の「剥離性」
は、○は剥離性良好、△は剥離性やや不良(グリーンシ
ートにやや破損あり)、×は剥離性不良(グリーンシー
トに破損あり)を示す。
After drying, as an evaluation of releasability, a square half-cut with a side of 15 cm was put on the green sheet with a mold, and the square green sheet was peeled at a peeling speed of 30 c.
It was peeled at a right angle at m / sec, and it was evaluated whether or not it could be peeled off smoothly. The results are shown in Table 1. "Peelability" in the table
Indicates that the peelability is good, Δ indicates that the peelability is slightly poor (the green sheet is slightly damaged), and × is that the peelability is poor (the green sheet is damaged).

【0014】[0014]

【表1】 [Table 1]

【0015】界面活性剤の添加量が1.5重量部未満で
はグリーンシートとポリエステルフィルムとの密着性が
大きくて無理に剥離しようとしてグリーンシートが破損
した。一方、界面活性剤の添加量が4重量部を超えると
密着力は弱くなったが、グリーンシートの強度が弱くな
って、剥離の際に異常なのびや破れが生じた。
When the amount of the surfactant added was less than 1.5 parts by weight, the adhesion between the green sheet and the polyester film was so large that the green sheet was damaged by attempting to peel it off. On the other hand, when the amount of the surfactant added was more than 4 parts by weight, the adhesive strength was weakened, but the strength of the green sheet was weakened, and abnormal spread and tear occurred at the time of peeling.

【0016】[0016]

【発明の効果】本発明により、シリコンコートのないポ
リエステルフィルムに直接キャスティングできて製造コ
ストが低減されるセラミックスラリー組成物が得られ
た。
Industrial Applicability According to the present invention, a ceramic slurry composition which can be directly cast on a polyester film having no silicon coating and which can be manufactured at a low cost can be obtained.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 セラミック粉末、バインダ、溶剤及び界
面活性剤からなるセラミックスラリー組成物であって、
該界面活性剤の添加量は該セラミック粉末100重量部
に対し1.5〜4重量部であることを特徴とする前記セ
ラミックスラリー組成物。
1. A ceramic slurry composition comprising a ceramic powder, a binder, a solvent and a surfactant, comprising:
The ceramic slurry composition, wherein the amount of the surfactant added is 1.5 to 4 parts by weight based on 100 parts by weight of the ceramic powder.
JP7317652A 1995-12-06 1995-12-06 Ceramic slurry composition Pending JPH09157032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7317652A JPH09157032A (en) 1995-12-06 1995-12-06 Ceramic slurry composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7317652A JPH09157032A (en) 1995-12-06 1995-12-06 Ceramic slurry composition

Publications (1)

Publication Number Publication Date
JPH09157032A true JPH09157032A (en) 1997-06-17

Family

ID=18090539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7317652A Pending JPH09157032A (en) 1995-12-06 1995-12-06 Ceramic slurry composition

Country Status (1)

Country Link
JP (1) JPH09157032A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103896595A (en) * 2012-12-26 2014-07-02 株式会社村田制作所 Ceramic raw piece and manufacturing method
JP2014525383A (en) * 2011-12-31 2014-09-29 中国電子科技集団公司第十三研究所 Refined white ceramics and method for preparing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014525383A (en) * 2011-12-31 2014-09-29 中国電子科技集団公司第十三研究所 Refined white ceramics and method for preparing the same
DE112012002644B4 (en) * 2011-12-31 2019-09-19 The 13th Research Institute of China Electronics Technology Group Corp. White refined ceramic material and manufacturing process
CN103896595A (en) * 2012-12-26 2014-07-02 株式会社村田制作所 Ceramic raw piece and manufacturing method

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