The essential difference between the photosolid and thermosetting of the release film lies in the opening mode of the release film. In the photosolid release film, it is cured by ultraviolet radiation, so as to realize the opening of the release film; In the thermosetting release film, it needs to be heated at a certain temperature to cure the release film, so as to realize opening.
Optical solid release film is mainly used in electronics, semiconductors, optics, die-cutting and other fields, such as soft printed circuit board, LCD, etc. The thermal release membrane is suitable for aviation, aerospace, optics, medical and other fields, such as carbon fiber composite materials, oxygen and nitrogen thermal barrier coatings.
The advantage of the photosolid film is that it has strong bonding force and is not easy to stratify during the pressing process. The disadvantage is that the support of light source equipment is required, and the cost is relatively high. The advantages of thermoset release film are wide application range and low cost; The disadvantage is that the quality is unstable, and bubbles and stratification are easy to occur during the heating process.
To sum up, although the principle of photosolid and thermosetting of the release film is different, it is an indispensable tool in the manufacturing industry. Each has advantages and disadvantages, and needs to be selected according to the specific application field and actual needs when using.