JPH0724744B2 - Peptizer for ceramic molding - Google Patents
Peptizer for ceramic moldingInfo
- Publication number
- JPH0724744B2 JPH0724744B2 JP63103894A JP10389488A JPH0724744B2 JP H0724744 B2 JPH0724744 B2 JP H0724744B2 JP 63103894 A JP63103894 A JP 63103894A JP 10389488 A JP10389488 A JP 10389488A JP H0724744 B2 JPH0724744 B2 JP H0724744B2
- Authority
- JP
- Japan
- Prior art keywords
- peptizer
- present
- fatty acid
- ceramic molding
- slurry
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 半導体用のパッケージ又は基板用等に使用されるセラミ
ックの一成形法であるドクターブレード成形は、セラミ
ック原料を溶剤系でスラリーにする為に通常解膠剤（分
散剤）が使用される。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] Doctor blade molding, which is one molding method of ceramics used for semiconductor packages or substrates, is usually performed in order to make a ceramic raw material into a slurry by a solvent system. A peptizer (dispersant) is used.
本発明は低粘度でしかも安定なスラリーを与えるドクタ
ーブレード成形用解膠剤に関する。The present invention relates to a peptizing agent for forming a doctor blade, which gives a slurry having a low viscosity and stable.
ドクターブレード成形は、アルミナ等のセラミック原料
に、エタノール，トリクレン等の溶剤、ポリエチレング
リコール，オクチルフタレート等の可塑剤や解膠剤等を
混合し、均一なスラリーを作り、ドクターブレード装置
により、キャリアシート上にスラリーを0.03〜1.2mm程
度の厚さに塗り、溶剤を乾燥させる。その後グリーンテ
ープと呼ばれる乾燥させたシートをキャリアシートから
剥し、二次加工で焼結し製品化する。For doctor blade molding, a ceramic material such as alumina is mixed with a solvent such as ethanol or trichlene, a plasticizer such as polyethylene glycol or octyl phthalate, or a deflocculant to form a uniform slurry. The slurry is applied on the top to a thickness of about 0.03 to 1.2 mm, and the solvent is dried. After that, a dried sheet called a green tape is peeled off from the carrier sheet and sintered by secondary processing to obtain a product.
このドクターブレード成形では、全工程が重要である
が、中でもスラリーを流しグリーンテープを成形する工
程が重要で、最終製品の品質を左右する。そのポイント
を占めるのがスラリーの状態で、粘度が高すぎたり、安
定性が悪いと充分に満足するグリーンテープを作ること
ができない。In this doctor blade molding, all the steps are important, but above all, the step of flowing the slurry to form the green tape is important and affects the quality of the final product. The point is the state of slurry, and if the viscosity is too high or the stability is poor, a fully satisfactory green tape cannot be made.
従来より、スラリーを作る為にドクターブレード成形用
の解膠剤として魚油，ナタネ油，グリセリンモノオレー
ト，ソルビタントリオレート等が使用されている。しか
しこれらについては、解膠剤として充分に満足できるも
のでなく、添加量を多くしても粘度低下が不充分であっ
たり、経時的に分離する等の問題があり、その改善が強
く望まれている。Conventionally, fish oil, rapeseed oil, glycerin monooleate, sorbitan trioleate, etc. have been used as a deflocculant for forming a doctor blade to make a slurry. However, these are not sufficiently satisfactory as a deflocculant, and there are problems such as insufficient viscosity reduction even if the addition amount is increased and separation over time, and improvement thereof is strongly desired. ing.
本発明者は上記問題点、すなわち（１）粘度低下能、
（２）安定性を解決する新タイプのドクターブレード成
形用解膠剤の開発を目的に鋭意検討した結果、食品添加
物として認められているポリグリセン脂肪酸エステル
が、これらの問題点を解決しうる優れた解膠剤であるこ
とを見出し本発明に至ったものである。The present inventor has the above-mentioned problems, namely, (1) viscosity lowering ability,
(2) As a result of extensive studies aimed at developing a new type of peptizer for forming a doctor blade that solves stability, polyglycene fatty acid ester, which is recognized as a food additive, is an excellent solution to these problems. The present invention was found to be a deflocculating agent and has led to the present invention.
本発明の要旨とする所はポリグリセリン脂肪酸エステル
を主成分とするセラミック成形用解膠剤に存し、本発明
において使用するポリグリセリン脂肪酸エステルは、重
合度２以上のポリグリセリンと脂肪酸のエステル化物で
ある。好ましくは、水酸基が１つ以上存在するもので、
更に溶剤系で使用する為常温で液状又はペースト状のも
のが良い。The gist of the present invention resides in a deflocculating agent for ceramic molding containing polyglycerin fatty acid ester as a main component, and the polyglycerin fatty acid ester used in the present invention is an esterified product of polyglycerin and fatty acid having a degree of polymerization of 2 or more. Is. Preferably, one or more hydroxyl groups are present,
Further, since it is used in a solvent system, it is preferable that it is liquid or paste at room temperature.
ポリグリセリン脂肪酸エステルを構成する脂肪酸はC8〜
C22の炭素を有する飽和又は不飽和脂肪酸であるが、好
ましくは、C6〜C12の直鎖飽和脂肪酸、又はC16,C18の直
鎖不飽和脂肪酸が良い。例えば、カプロン酸，カプリル
酸，ラウリン酸，オレイン酸，リノール酸，リノレイン
酸，リシノレイン酸等が挙げられる。又、これらの脂肪
酸を多量に含むヤシ油，パーム核油，コーン油，大豆
油，綿実油，サフラワー油，ナタネ油等から得られる脂
肪酸でも良い。ポリグリセリンとしは、重合度２以上の
ものでジグリセリン，トリグリセリン，テトラグリセリ
ン，ペンタグリセリン，ヘキサグリセリン，ヘプタグリ
セリン，オクタグリセリン，ノナグリセリン，デカグリ
セリン等が使用できる。The fatty acids constituting the polyglycerin fatty acid ester are C 8 ~
Although it is a saturated or unsaturated fatty acid having C 22 carbon, a C 6 to C 12 straight chain saturated fatty acid, or a C 16 or C 18 straight chain unsaturated fatty acid is preferable. For example, caproic acid, caprylic acid, lauric acid, oleic acid, linoleic acid, linoleic acid, ricinoleic acid and the like can be mentioned. In addition, fatty acids obtained from coconut oil, palm kernel oil, corn oil, soybean oil, cottonseed oil, safflower oil, rapeseed oil and the like containing a large amount of these fatty acids may be used. As the polyglycerin, those having a degree of polymerization of 2 or more can be used, such as diglycerin, triglycerin, tetraglycerin, pentaglycerin, hexaglycerin, heptaglycerin, octaglycerin, nonaglycerin and decaglycerin.
本発明の解膠剤の主成分は、重合度２以上のポリグリセ
リンと脂肪酸のエステル化物であるが、未反応のポリオ
ール，脂肪酸が少量含まれていても差支えない。The main component of the deflocculant of the present invention is an esterified product of polyglycerin having a degree of polymerization of 2 or more and a fatty acid, but it does not matter if a small amount of unreacted polyol or fatty acid is contained.
本発明の解膠剤は、上記のポリグリセリン脂肪酸エステ
ルの単独又はその混合物を主成分として使用することが
できる。更に必要に応じて通常ドクターブレード成形用
解膠剤に使用できるものを併用しても良い。The peptizer of the present invention can use the above-mentioned polyglycerin fatty acid ester alone or as a mixture thereof as a main component. Further, if necessary, those which can be usually used as a peptizing agent for forming a doctor blade may be used in combination.
本発明の解膠剤を使用してドクターブレード成形する場
合、通常の製造工程が適用される。又セラミック原料，
溶剤，添加剤等についても特に限定されるものではなく
通常使用されるものが適用される。When doctor blade molding is performed using the deflocculant of the present invention, conventional manufacturing processes are applied. Also ceramic raw materials,
The solvent, additives, etc. are not particularly limited, and those commonly used can be applied.
本発明の解膠剤を使用する場合、添加量は処方及び希望
する粘度等により、溶剤に対して0.1〜20％の範囲で使
用すれば目的を達成できる。When the deflocculant of the present invention is used, the addition amount may be 0.1 to 20% with respect to the solvent depending on the formulation and the desired viscosity.
次に本発明の実施例及び比較例を示し、本発明を具体的
に説明する。Next, the present invention will be specifically described by showing Examples and Comparative Examples of the present invention.
尚、本発明はこれらの実施例に限定されるものではな
い。The present invention is not limited to these examples.
（１）試験配合 ・アルミナ（AL−160SG type3 昭和軽金属製） 100部 ・溶剤（トリクレン／エタノール＝1/1） 30部 ・解膠剤 0.1部 （２）スラリー調製方法 解膠剤と溶剤を混合したものとアルミナを全量で300gを
フラスコ（500ml）に充填し、１分30秒低速回転で予備
混合を行なった後、高速回転で10分間攪拌を行ないスラ
リーを調製した。(1) Test formulation-Alumina (AL-160SG type3 Showa Light Metal) 100 parts-Solvent (trichlene / ethanol = 1/1) 30 parts-Peptizer 0.1 part (2) Slurry preparation method Mix peptizer and solvent The resulting mixture and alumina were charged in a flask (500 ml) in a total amount of 300 g, pre-mixed at low speed for 1 minute and 30 seconds, and then stirred at high speed for 10 minutes to prepare a slurry.
（３）試験方法 上記の方法にて調製したスラリーについて粘度試験及び
安定性試験を行なった。(3) Test method A viscosity test and a stability test were performed on the slurry prepared by the above method.
粘度試験 Ｂ型粘度計を用いて25℃で測定 安定性試験 密閉した50ccの乳化試験管に入れ25℃に保存した時の分
離状態の評価。Viscosity test Measured using a B-type viscometer at 25 ° C Stability test Evaluation of the separated state when stored in a sealed 50cc emulsification test tube and stored at 25 ° C.
○：分離なし △：分離あり ×：完全に分離 試験結果を第１表に示した。A: No separation B: Separation X: Complete separation The test results are shown in Table 1.
〔発明の効果〕 比較例１〜4,実施例１〜14からわかるように、本発明品
はいずれの場合も良好な粘度低下効果と安定性を示し、
更に粘度の経時変化も非常に微かであった。 [Effects of the Invention] As can be seen from Comparative Examples 1 to 4 and Examples 1 to 14, the products of the present invention show good viscosity lowering effect and stability in all cases,
Furthermore, the change in viscosity with time was very slight.
尚、実施例のスラリーについて乾燥，焼結を行なった結
果、全て良好な焼結状態を示した。Incidentally, as a result of drying and sintering the slurries of the examples, all of them showed a good sintering state.
Claims (2)
するセラミック成形用解膠剤。1. A peptizing agent for ceramic molding, which comprises a polyglycerin fatty acid ester as a main component.
ある請求項（１）記載のセラミック成形用解膠剤。2. The peptizer for ceramic molding according to claim 1, wherein the ceramic molding is doctor blade molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63103894A JPH0724744B2 (en) | 1988-04-28 | 1988-04-28 | Peptizer for ceramic molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63103894A JPH0724744B2 (en) | 1988-04-28 | 1988-04-28 | Peptizer for ceramic molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01274831A JPH01274831A (en) | 1989-11-02 |
| JPH0724744B2 true JPH0724744B2 (en) | 1995-03-22 |
Family
ID=14366130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63103894A Expired - Lifetime JPH0724744B2 (en) | 1988-04-28 | 1988-04-28 | Peptizer for ceramic molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724744B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH685493A5 (en) * | 1993-04-08 | 1995-07-31 | Thomas Graule Prof Dr Ludwig G | Process for the preparation of ceramic green bodies by double layer compression. |
-
1988
- 1988-04-28 JP JP63103894A patent/JPH0724744B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01274831A (en) | 1989-11-02 |
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