CN104167236A - Conductive silver paste compounded by bamboo charcoal powder and alum ore tailings and production method thereof - Google Patents

Conductive silver paste compounded by bamboo charcoal powder and alum ore tailings and production method thereof Download PDF

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Publication number
CN104167236A
CN104167236A CN201410368692.5A CN201410368692A CN104167236A CN 104167236 A CN104167236 A CN 104167236A CN 201410368692 A CN201410368692 A CN 201410368692A CN 104167236 A CN104167236 A CN 104167236A
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China
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parts
hour
silver paste
bamboo charcoal
charcoal powder
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CN201410368692.5A
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CN104167236B (en
Inventor
蒋智谋
周施峰
周梅永
胡加峰
谢水兵
张超
崔海威
吴华
董子侠
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Xuzhou Shengdoushi Biological Technology Co ltd
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Anhui Zhuangyuanlang Electronic Technology Co Ltd
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Abstract

The invention discloses conductive silver paste compounded by bamboo charcoal powder and alum ore tailings. The conductive silver paste is characterized by being prepared from, by weight, 40 parts to 50 parts of silver powder, 3 parts to 5 parts of bamboo charcoal powder, 1 part to 3 parts of alum ore tailings, 0.5 part to 0.8 part of zinc borate, 1.1 parts to 2.4 parts of hydroxyethyl cellulose, 2.1 parts to 3.5 parts of ammonium humate, 1 part to 2 parts of tungsten carbide, 1.3 parts to 2.7 parts of aluminum silicate fiber, 1.5 parts to 3.3 parts of nano cerium oxide, 2 parts to 4 parts of styrene-acrylic emulsion, 30 parts to 40 parts of auxiliaries and an appropriate amount of water. Because the bamboo charcoal powder, the alum ore tailings, other inorganic additives and the like are added to the conducive silver paste and the grinding technology is adopted, the produced conductive silver paste has a certain sound absorption and thermal insulation effect; besides, by improving the technological process, the conductivity and the sintering character of the conductive silver paste are improved.

Description

Conductive silver paste that a kind of bamboo charcoal powder/alum ore deposit tailings is compound and preparation method thereof
Technical field
The present invention relates to conductive silver paste field, be specifically related to compound conductive silver paste of a kind of bamboo charcoal powder/alum ore deposit tailings and preparation method thereof.
Background technology
Conductive silver paste refers to and is printed on conduction stock, make it the silver slurry that there is conduction current and get rid of accumulate static charge ability, be to be generally imprinted on the non-conductive stocks such as plastics, glass, pottery or cardboard, it is made up of electroconductive stuffing, binder, solvent and additive.The characteristic that conductive silver paste need to possess has: conductivity (antistatic behaviour) is good, strong adhesion, printing adaptability are good and the excellent characteristic of solvent resistance, and existing conductive silver paste has a lot of shortcomings in the market, not only contain lead, cadmium etc. and poisonous, contaminated environment, and use conduction stock on time adhesive force low, soldering resistance is not good, sintering character is poor.
Summary of the invention
Object of the present invention is just to provide compound conductive silver paste of a kind of bamboo charcoal powder/alum ore deposit tailings and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
The compound conductive silver paste of a kind of bamboo charcoal powder/alum ore deposit tailings, it is characterized in that, made by the raw material of following weight portion: silver powder 40-50, bamboo charcoal powder 3-5, alum ore deposit tailings 1-3, Firebrake ZB 0.5-0.8, hydroxyethylcellulose 1.1-2.4, ammonium humate 2.1-3.5, tungsten carbide 1-2, alumina silicate fibre 1.3-2.7, nano-cerium oxide 1.5-3.3, benzene emulsion 2-4, auxiliary agent 30-40, suitable quantity of water.
Described auxiliary agent is made up of following raw materials in part by weight: alundum (Al2O3) 2-3, boron oxide 3-5, polyvinyl alcohol 7-9, rosin 14-18,3-aminopropyl trimethoxysilane 1.2-2.4, dimethyl silicone polymer 0.3-0.4, acetone 9-14, cyclohexanone 7-10, its preparation method is alundum (Al2O3), boron oxide to be put into calciner at 520-610 DEG C, calcine 1-2 hour, taking-up is cooled to room temperature, adds polyvinyl alcohol to grind 20-40 minute; Cyclohexanone, rosin are mixed, at 100-120 DEG C, react 2-3 hour, be cooled to 40-50 DEG C, add acetone, 3-aminopropyl trimethoxysilane, dimethyl silicone polymer, keep temperature to stir 3-4 hour; Above each product is mixed, grind and make 300-400 order slurry and get final product for 2-4 hour.
The preparation method of the compound conductive silver paste of described a kind of bamboo charcoal powder/alum ore deposit tailings, is characterized in that comprising the following steps:
(1) get bamboo charcoal powder, nano-cerium oxide and add suitable quantity of water and grind 1-3 hour, spraying is dry, puts into calciner sintering 30-40 minute at 420-470 DEG C, takes out coolingly, adds tungsten carbide to grind 1-2 hour;
(2) get alum ore deposit tailings and put into retort process 1-2 hour at 650-720 DEG C, take out coolingly, add hydroxyethylcellulose, alumina silicate fibre, Firebrake ZB to grind 2-3 hour, spray vaporific benzene emulsion and mix;
(3) step (1), (2) reaction mass and other leftover materials are mixed, be warming up to 100-120 DEG C, stirring reaction 1-2 hour, cooling, grinding to form particle diameter is 10-20 μ m slurry grain, to obtain final product.
The present invention has following beneficial effect: the present invention adds bamboo charcoal powder, alum ore deposit tailings and other inorganic additives etc., pass through grinding technics, the conductive silver paste making has certain sound-absorption and heat-insulation function, in addition the present invention, by improving technological process, has improved electric conductivity and the sintering character of conductive silver paste.
Embodiment
The described compound conductive silver paste of a kind of bamboo charcoal powder/alum ore deposit tailings, it is characterized in that, made by the raw material of following weight portion: silver powder 48, bamboo charcoal powder 5, alum ore deposit tailings 1, Firebrake ZB 0.7, hydroxyethylcellulose 2.4, ammonium humate 2.8, tungsten carbide 1, alumina silicate fibre 1.8, nano-cerium oxide 1.5, benzene emulsion 4, auxiliary agent 30, suitable quantity of water.
Described auxiliary agent is made up of following raw materials in part by weight: alundum (Al2O3) 2, boron oxide 4, polyvinyl alcohol 7, rosin 15,3-aminopropyl trimethoxysilane 1.9, dimethyl silicone polymer 0.3, acetone 12, cyclohexanone 8, its preparation method is alundum (Al2O3), boron oxide to be put into calciner at 520-610 DEG C, calcine 1-2 hour, taking-up is cooled to room temperature, adds polyvinyl alcohol to grind 20-40 minute; Cyclohexanone, rosin are mixed, at 100-120 DEG C, react 2-3 hour, be cooled to 40-50 DEG C, add acetone, 3-aminopropyl trimethoxysilane, dimethyl silicone polymer, keep temperature to stir 3-4 hour; Above each product is mixed, grind and make 300-400 order slurry and get final product for 2-4 hour.
Manufacture method comprises the following steps:
(1) get bamboo charcoal powder, nano-cerium oxide and add suitable quantity of water and grind 1-3 hour, spraying is dry, puts into calciner sintering 30-40 minute at 420-470 DEG C, takes out coolingly, adds tungsten carbide to grind 1-2 hour;
(2) get alum ore deposit tailings and put into retort process 1-2 hour at 650-720 DEG C, take out coolingly, add hydroxyethylcellulose, alumina silicate fibre, Firebrake ZB to grind 2-3 hour, spray vaporific benzene emulsion and mix;
(3) step (1), (2) reaction mass and other leftover materials are mixed, be warming up to 100-120 DEG C, stirring reaction 1-2 hour, cooling, grinding to form particle diameter is 10-20 μ m slurry grain, to obtain final product.
The technical indicator of processing the conductive silver paste obtaining by above-described embodiment is as follows:
(1) viscosity: 50-100PaS(Brookfield, 10RPM);
(2) adhesive force: > 10N/mm 2;
(3) plumbous cadmium content: < 100ppm;
(4) solderability excellent, burnt in a heap easily separated, printing adaptability good and solvent resistance is excellent.

Claims (2)

1. the compound conductive silver paste of bamboo charcoal powder/alum ore deposit tailings, it is characterized in that, made by the raw material of following weight portion: silver powder 40-50, bamboo charcoal powder 3-5, alum ore deposit tailings 1-3, Firebrake ZB 0.5-0.8, hydroxyethylcellulose 1.1-2.4, ammonium humate 2.1-3.5, tungsten carbide 1-2, alumina silicate fibre 1.3-2.7, nano-cerium oxide 1.5-3.3, benzene emulsion 2-4, auxiliary agent 30-40, suitable quantity of water; Described auxiliary agent is made up of following raw materials in part by weight: alundum (Al2O3) 2-3, boron oxide 3-5, polyvinyl alcohol 7-9, rosin 14-18,3-aminopropyl trimethoxysilane 1.2-2.4, dimethyl silicone polymer 0.3-0.4, acetone 9-14, cyclohexanone 7-10, its preparation method is alundum (Al2O3), boron oxide to be put into calciner at 520-610 DEG C, calcine 1-2 hour, taking-up is cooled to room temperature, adds polyvinyl alcohol to grind 20-40 minute; Cyclohexanone, rosin are mixed, at 100-120 DEG C, react 2-3 hour, be cooled to 40-50 DEG C, add acetone, 3-aminopropyl trimethoxysilane, dimethyl silicone polymer, keep temperature to stir 3-4 hour; Above each product is mixed, grind and make 300-400 order slurry and get final product for 2-4 hour.
2. the manufacture method of the compound conductive silver paste of a kind of bamboo charcoal powder/alum according to claim 1 ore deposit tailings, is characterized in that comprising the following steps:
(1) get bamboo charcoal powder, nano-cerium oxide and add suitable quantity of water and grind 1-3 hour, spraying is dry, puts into calciner sintering 30-40 minute at 420-470 DEG C, takes out coolingly, adds tungsten carbide to grind 1-2 hour;
(2) get alum ore deposit tailings and put into retort process 1-2 hour at 650-720 DEG C, take out coolingly, add hydroxyethylcellulose, alumina silicate fibre, Firebrake ZB to grind 2-3 hour, spray vaporific benzene emulsion and mix;
(3) step (1), (2) reaction mass and other leftover materials are mixed, be warming up to 100-120 DEG C, stirring reaction 1-2 hour, cooling, grinding to form particle diameter is 10-20 μ m slurry grain, to obtain final product.
CN201410368692.5A 2014-07-30 2014-07-30 Conductive silver paste that a kind of bamboo charcoal powder/vitriol ore deposit tailings is compound and preparation method thereof Active CN104167236B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190044005A1 (en) * 2016-03-09 2019-02-07 Namics Corporation Conductive paste and solar cell

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110227004A1 (en) * 2010-03-19 2011-09-22 Seok Hyun Jung Paste for solar cell electrode and solar cell using the same
CN102426873A (en) * 2011-12-28 2012-04-25 彩虹集团公司 Silicon solar battery positive silver paste and preparation method thereof
CN102426874A (en) * 2011-12-28 2012-04-25 彩虹集团公司 Front silver paste for silicon solar cells and preparation method thereof
CN102637467A (en) * 2012-04-27 2012-08-15 苏州晶讯科技股份有限公司 Conductive paste for front electrode of silicon crystal solar battery
CN103021506A (en) * 2012-12-10 2013-04-03 滁州恒恩光电科技有限公司 Conducting slurry containing tributyl phosphate
CN103015660A (en) * 2012-12-06 2013-04-03 杭州奥普卫厨科技有限公司 Pinch plate with formaldehyde removal and air purification functions
CN103289482A (en) * 2013-04-23 2013-09-11 安徽圣德建材科技有限公司 Polyethylene powder paint and preparation method thereof
CN103566873A (en) * 2013-09-26 2014-02-12 蚌埠华纺滤材有限公司 Modified activated carbon with medicine aroma and preparation method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110227004A1 (en) * 2010-03-19 2011-09-22 Seok Hyun Jung Paste for solar cell electrode and solar cell using the same
CN102426873A (en) * 2011-12-28 2012-04-25 彩虹集团公司 Silicon solar battery positive silver paste and preparation method thereof
CN102426874A (en) * 2011-12-28 2012-04-25 彩虹集团公司 Front silver paste for silicon solar cells and preparation method thereof
CN102637467A (en) * 2012-04-27 2012-08-15 苏州晶讯科技股份有限公司 Conductive paste for front electrode of silicon crystal solar battery
CN103015660A (en) * 2012-12-06 2013-04-03 杭州奥普卫厨科技有限公司 Pinch plate with formaldehyde removal and air purification functions
CN103021506A (en) * 2012-12-10 2013-04-03 滁州恒恩光电科技有限公司 Conducting slurry containing tributyl phosphate
CN103289482A (en) * 2013-04-23 2013-09-11 安徽圣德建材科技有限公司 Polyethylene powder paint and preparation method thereof
CN103566873A (en) * 2013-09-26 2014-02-12 蚌埠华纺滤材有限公司 Modified activated carbon with medicine aroma and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190044005A1 (en) * 2016-03-09 2019-02-07 Namics Corporation Conductive paste and solar cell

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