Resin film, laminate, method for producing same, and method for producing fuel cell
a technology of fuel cell and release film, which is applied in the direction of fuel cell details, final product manufacture, synthetic resin layered products, etc., can solve the problems of easy generation of poisonous gas, difficult to predict the releasability behavior and balance the releasability, and difficult to improve the adhesion of the release film, etc., to achieve moderate releasability (peelability), excellent handling, and high heat resistance
Active Publication Date: 2017-04-06
DAICEL VALUE COATING +1
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present in this patented technology relates to films made from materials that contain certain types of chemicals called monomers or small molecules like ethene. These specialized compounds have properties similar to those found on other organic substances used for making plastic products. They are easy to release when exposed to water vapor during manufacturing processes. Additionally, these films may be attached securely even if they don't include any layers needed beforehand. Overall, it provides technical benefits over existing methods involving sticking two different parts together.
Problems solved by technology
Technologies described in Japanese Expert Lay Media Manufacture: The technical problem addressed in this patents relates to improving the performance and durability of fuel cell components during their manufacturing processes. Specifically, current films suffer issues including difficulty achieving good separation properties when they come into direct contact with each other due to strong hydrogen bonds within them. Additionally, existing solutions involve complex structures involving multiple layers making them challenging to efficiently mass productively create thin films suitable for commercial uses without sacrificial releases.
Method used
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Experimental program
Comparison scheme
Effect test
example 1
[0130]To a mixed solvent of toluene and tetrahydrofuran (toluene / tetrahydrofuran=70 / 30 (weight ratio)) was added 100 parts by weight of Nb / Oct and 1.0 part by weight of PVDC so that the solid content (the concentration of the polymer components) was 5% by weight. The mixture was heated for dissolution to prepare a liquid coating composition. In the same manner as Comparative Example 1, the resulting liquid coating composition was used to give a release film.
example 2
[0131]A release film was obtained in the same manner as Example 1 except that the ratio of PVDC was 1.2 parts by weight.
example 3
[0132]A release film was obtained in the same manner as Example 1 except that the ratio of PVDC was 2 parts by weight.
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Abstract
A polymer film comprises a polymer composition containing (A) a cyclic olefin polymer containing an olefin unit having a C3-10alkyl group as a side chain thereof and (B) a chlorine-containing polymer. The chlorine-containing polymer (B) may comprise a vinylidene chloride-series polymer. The ratio of the chlorine-containing polymer (B) relative to 100 parts by weight of the cyclic olefin polymer (A) may be 0.5 to 60 parts by weight. The film has a moderate releasability from an electrolyte membrane and an electrode membrane of a polymer electrolyte fuel cell and a moderate adhesion to the electrolyte membrane and the electrode membrane and can adhere to a commonly-used substrate film without interposition of an adhesive layer such as an easily adhesive layer. The film is thus suitable as a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell.
Description
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