Base Film for MLCC Release Film is a key material used in the production of multilayer ceramic capacitors. It is a composite film that combines a release film with a base film, where the main function of the release film is to prevent the base film from adhering to other materials and to ensure the flatness and stability of the base film during the manufacturing process. The base film provides support and protection for the structure of the ceramic layer inside the capacitor. Release films are usually made from high performance materials such as polyester and polyimide, while the base film may be made from different plastic or paper-based materials. The entire composite film has excellent insulating properties, heat resistance and mechanical strength, which can effectively improve MLCC production efficiency and product quality. By precisely controlling the characteristics of the release film and base film, the electrical performance and long life of the capacitor can be optimized to meet the demand for high reliability and miniaturization in modern electronic devices.
Schematic Diagram of Base Film Application
Our MLCC release film base films mainly include four models: GM70, GM70A, GM70B, and GM70D. The data parameters are shown in the following table.
|
Grade |
Unit |
GM70 |
GM70A |
||
|
Feature |
\ |
ABA structure/roughness Ra: 20-30nm |
ABA structure/roughness Ra: 30-40nm |
||
|
Thickness |
μm |
30 |
36 |
30 |
36 |
|
Tensile Strength |
MPa |
226/252 |
218/262 |
240/269 |
228/251 |
|
Elongation at break |
% |
134/111 |
146/102 |
148/113 |
145/115 |
|
150℃ Heat Shrinkage |
% |
1.19/0.11 |
1.23/0.34 |
1.26/0.13 |
1.21/0.21 |
|
Light Transmittance |
% |
89.8 |
89.6 |
90.2 |
90.3 |
|
Haze |
% |
3.23 |
5.42 |
3.10 |
3.37 |
|
Surface roughness |
Nm |
22/219/302 |
24/239/334 |
34/318/461 |
32/295/458 |
|
Production location |
\ |
Nantong |
|||
|
Grade |
Unit |
GM70B |
GM70D |
||
|
Feature |
\ |
ABA structure/roughness Ra≥35nm |
ABC structure/roughness Ra: 10-20nm |
||
|
Thickness |
μm |
30 |
36 |
30 |
36 |
|
Tensile Strength |
MPa |
226/265 |
220/253 |
213/246 |
190/227 |
|
Elongation at break |
% |
139/123 |
122/105 |
132/109 |
147/104 |
|
150℃ Heat Shrinkage |
% |
1.23/0.02 |
1.29/0.12 |
1.11/0.08 |
1.05/0.2 |
|
Light Transmittance |
% |
90.3 |
90.3 |
90.1 |
90.0 |
|
Haze |
% |
3.78 |
3.33 |
3.38 |
4.29 |
|
Surface roughness |
Nm |
40/410/580 |
39/399/540 |
15/118/165 |
18/143/189 |
|
Production location |
\ |
Nantong |
|||
Note:1 The above values are typical values, not guaranteed values. 2 In addition to the above products, there are also products of various thicknesses, which can be negotiated according to customer needs. 3 ○/○ in the table represents MD/TD. 4 ○/○/○ in the table represents Ra/Rz/Rmax.
If you are interested in our products, please visit our website for more information: www.dongfang-insulation.com. Or you can tell us your needs via email: sales@dongfang-insulation.com.
Post time: Sep-18-2024
