Polymer electrolyte membrane and method for manufacturing the same
AssigneeKorea Petrochemical Ind. Co., Ltd
InventorsSung Kuk JEONG, Yoon Hyun PARK, Ho Jin SON, Gil Soon KANG, Young Tae JEONG
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Abstract
According to an embodiment, there is provided a polymer electrolyte membrane, comprising a polymer film including a styrene-based resin, a polyolefin-based resin, and an olefin-based elastomer resin. The polymer film is bonded with a sulfonic acid group (—SO3H) capable of cation exchange through a sulfonation reaction.
Claims10
A polymer electrolyte membrane, comprising a polymer film including a styrene-based resin, a polyolefin-based resin, and an olefin-based elastomer resin, wherein the polymer film is bonded with a sulfonic acid group (—SO3H) capable of cation exchange through a sulfonation reaction.
A method for manufacturing a polymer electrolyte membrane, the method comprising:
- a first step of preparing a mixture by blending a styrene-based resin, a polyolefin-based resin, and an olefin-based elastomer resin in a weight ratio of 20 to 50:50 to 75:0 to 10, respectively;
- a second step of putting the mixture into an extruder and preparing pellets;
- a third step of preparing a polymer film by performing inflation, casting, biaxial stretching, lamination, and bottom-up inflation extrusion processing on the pellets;
- and
- a fourth step of bonding the polymer film with a sulfonic acid group (—SO3H) via a sulfonation reaction using a sulfone solution and a solvent.
Dependencies are inferred from the claim text.