SU613407A1

SU613407A1 - Paste for metallization of unburnt ceramics

Info

Publication number: SU613407A1
Application number: SU762433264A
Authority: SU
Inventors: Ирина Михайловна Мищенко; Иван Григорьевич Бертош; Лев Семенович Горкер; Валерий Вяйнович Коломайнен; Анатолий Евстафьевич Тишкевич
Original assignee: Организация П/Я А-1695
Priority date: 1976-12-24
Filing date: 1976-12-24
Publication date: 1978-06-30

Description

Изобретение отиосите к электронной технике и предназначено дл изготовлени электродов монолитЕ1ЫХ и пленочных конденеаторов .The invention is based on electronic technology and is intended for the manufacture of monolithic electrodes and film condensers.

Извеетна паета дл металлизацин керамики , содержаща порошок благородного металла и водорастворимое полимерное св зуюидееSculptured metalasine ceramics containing noble metal powder and a water soluble polymeric bond

Недостатком данной пасты вл етс низкое The disadvantage of this paste is low

качество металлизационных покрытий.quality of metallization coatings.

Известна наста дл металлизацнн необожженной керамики, содержаща дисперсный порошок ;благородного металла, водорастворимое св зующее, пластификатор, смачиватель и неногаситель 2.A known tin for metallized unfired ceramics containing a dispersed powder of a noble metal, a water-soluble binder, a plasticizer, a wetting agent and a non-suppressor 2.

Недостатком указанной пасты вл етс ее непригодность дл eтaллизaции топких керамических необожженных пленок, так как происходит коробление последних после высыхаии , и недостаточна стабильность в зкости насты во премеин.The disadvantage of this paste is its unsuitability for the etalization of the fired ceramic unfired films, since the latter are distorted after drying, and there is insufficient stability of viscosity of nasta in premein.

Целью изобретени вл етс улучшение качества металлизационных покрытий за счет повышени стабильности в зкости насты во времени и увеличение выхода годных изготавливаемых на ее основе металлнзационных изделий.The aim of the invention is to improve the quality of metallization coatings by increasing the viscosity stability of the crust over time and increasing the yield of manufactured metallization products based on it.

Поставленна цель достигаетс тем, что наста дл металлизации необожженной керамики , содержаща дисперсный порошок благо2This goal is achieved by the fact that an extract for metallization of unfired ceramics containing a dispersed powder is good2

родного металла, водорастворимое св зующее, пласт 1фнкатор, смачиватель п пспогасптсл). содержит в качестве водорастворимого cbJio ющего водный раствор полнвннилпирролндоиа при следующе.м количественном соотношении исходных компонентов, вес. ч.: Дисперсный порошок благородногоnative metal, water-soluble binder, layer 1fnkator, wetting agent (pspogasptsl). contains as a water-soluble cbJio of an aqueous solution of complete pyrrhenol at a following quantitative ratio of the starting components, wt. h .: Dispersed noble powder

металла55,0 -72,0metal55.0 -72.0

Полнвпнилнпрролидон1 ,65- 5,5Fullvnilnprrolidon1, 65-5.5

Пластие})икатор0,3 - 5,5Plastia}} ikator0,3 - 5,5

Смачиватель0,15- 1,5Wetter 0,15-1,5

Пеногаситель0,3 - 3,0Antifoam0,3 - 3,0

Вода25,6 -29,5Water25.6 -29.5

ПолнБннилпнрролидон обладает хорошчк.ш адгезионными свойствами, высокой стснснью совместимости с большннством нрпрод1 ы. Н спптетпческих смол, с растворами многих неорганических солей, порошка.ми металлов, керамики п другпмн хнмнкатамп.FullBnilnnrrolidon has good adhesive properties, high compatibility with most nprod1y. H sppetthesky resins, with solutions of many inorganic salts, powdered metals and ceramics p Druppmn hnmnkamp.

В качестве пластификатора полив1П)илнирролидона использован глнцерин, в качос.ое смачивател - раствор неноиогонаого поверхноетно-актпвпого вещества окснэтил.гоовашюго алкилфенола ОП, а в качестве neHOi-acrrroл - октиловый спирт НЛП трибутплфосф;;.Glcerin was used as a plasticizer of polyv1P) ilnirrolidone, a solution of a non-iogonic surface-active-acne substance of oxneethylgovine alkylphenol OP was used as a wetting agent, and as neHOi-acrrrol - octyl alcohol NLP tributl.

Claims

Below, concrete measures are given for metallization (the content of minerals is taken in parts by weight). Example 1. Palladium 65.7 Powder Polyvinylpyrrolidone 3,0 Glycerin 2,3 Hydroxyethyl Alkylphenol OP-100,13 Tributyl Phosphate 2.67 Distillation Water 26.2 Example 2. Silver Powder 55.0 Polyvinyl Pyrrolidone 4,0 Glycerin 1.7 Oxyethyl Alkyphenol OP Aliphylamine Opal Polypropyl 4,0 Pyrolidone 4,0 Glycerin 1.00 alcohol1.1 Distilled water 38.0 The preparation of the paste is carried out by grinding in a porcelain drum on a roller mill at a 1: 3 ratio of the ingredients of the paste and melush. The dispersion of the paste components, in addition to the wetting agent and the defoaming agent, is performed within 48 hours. The wetting agent OP-10 and the defoaming agent (octyl alcohol or Tributyl phosphate) are introduced into the paste upon completion of the dispersion of the metal in the plasticized glycerin binder. The metallization of the ceramic film with the proposed paste is performed on the known equipment for metallization. The resulting paste is homogeneous, has a stable viscosity over time. The term of use of the finished paste is 4-5 days. The application of the proposed nasta allows to provide the necessary thickness of the metallization coating and the continuity of the electrode. This improves the quality of the metallization of the unfired ceramic film after the metallization layer dries, and the yield of manufactured film products increases. Claims of paste for metallization of unfired ceramics containing dispersed noble metal powder, water-soluble binder, plasticizer, wetting agent and defoamer, characterized in that, in order to improve the quality of metallization coatings by increasing the viscosity of the paste and increasing the yield of manufactured pastes on its basis of metallization products, it contains as a water-soluble binder an aqueous solution of polyvinylpyrrolidopa in the following quantitative ratio uu components, wt. h .: Dispersed powder of noble metal55,0 --72,0 Polyvinylpyrrolidone1, 65- 5.5 Plasticizer0.3 - 5.5 Wetter0.15- 1.5 Foaming agent 0.3 - 3.0 Water25.6 29.5 Information sources , taken into account during examination 1. USSR author's certificate Afb 359245, cl. C 04B 41/14, 1973.

2. Patent Czechoslovakia No. 112040, cl. 48 3/04, 1964.