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Product Details:
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| Appearance: | White Powder | Raw Material: | Cellulose Fibre |
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| Function: | Thickener, Emulsifier, Film-former, Binder, Dispersing Agent | Aplication: | Conductive Paste, Solar Cells |
| CAS NO.: | 9004 57 3 | Chemical Formula: | (C6H7O2(OH)x(OCH2CH3)y)n |
| High Light: | CAS 9004-57-3 Carboxymethyl Ethyl Cellulose,Rheology Modifier Methyl Ethyl Cellulose,Conductive Paste Inks Hydroxy Ethyl Cellulose |
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CAS 9004-57-3 Ethyl Cellulose EC rheology modifier For Conductive Silver Paste Used in solar cells
【Introduction】
Name: Ethyl Cellulose
Abbreviation: EC
Structural formula:
In the formula , n stands for degree of polymerization and R for –H or –C2H5.
Ethyl cellulose is produced by chemically modifying cellulose with ethyl groups, which results in a non-ionic, water-insoluble polymer.
【Technical requirements of ethyl cellulose】
| Item | Index | ||
| K type | N type | T type | |
| Content of ethoxy, % | 45 . 0~47 . 9 | 48 . 0~49 . 5 | 49 . 6 Min |
| Viscosity, mPas | Conform to the requirements of table 2 | ||
| Ash , % | 0 .4 Max | ||
| Moisture , % | 3 . 0 Max | ||
Viscosity Specification
| Level | Specific range | Level | Specific range |
| 6 | 5 0～8 0 | 70 | 62～74 |
| 10 | 8 . 1～12 | 90 | 80~90 |
| 15 | 13～19 | 110 | 100～120 |
| 25 | 20～29 | 150 | 135～165 |
| 35 | 30～39 | 200 | 180～220 |
| 45 | 40～50 | 250 | 221～250 |
| 55 | 51～60 | 300 | 250 Min . |
【Properties of Ethyl Cellulose used in conductive silver paste】
1.Binder: Ethyl cellulose acts as a binder in conductive paste formulations, providing adhesion and cohesion to hold the conductive particles together.
2.Film-forming ability: Ethyl cellulose has excellent film-forming properties, allowing it to form a continuous film when dried or cured. This film helps to provide a stable and uniform coating over the conductive particles.
3.Solvent compatibility: Ethyl cellulose is soluble in various organic solvents, which allows for easy formulation and processing of conductive pastes. The solvents can be chosen based on their compatibility with ethyl cellulose and the other components of the paste.
4.Viscosity control: Ethyl cellulose can be used to control the viscosity of the conductive paste. By adjusting the concentration of ethyl cellulose, the viscosity can be tailored to achieve the desired application and printing characteristics.
5.Adhesion: Ethyl cellulose contributes to the adhesion between the conductive paste and the substrate. It helps in creating a strong bond between the conductive particles and the surface, ensuring good conductivity and reliability.
6.Thermal stability: Ethyl cellulose exhibits good thermal stability, which is essential for conductive paste applications that involve high-temperature processes such as sintering or curing.
7.Compatibility with other additives: Ethyl cellulose is generally compatible with other additives commonly used in conductive paste formulations, such as dispersants, rheology modifiers, and conductive fillers. This allows for easy incorporation and compatibility of different components in the paste formulation.
【Package of ethyl cellulose】
It is packed in paper bags lined with PVC bags . Net weight per package: 20kg
【Instruction for storage】
Protect the product against moisture and damp.
Don't put it together with other chemicals.
Production flow
Our Team
Contact Person: Mrs. Lannie Zhang
Tel: 86-021-54012006
Fax: 86-021-54012008
