半岛bd体育手机客户端 说明
一般描述
Aquivion?PFSA dispersions are based on the short-side-chain (SSC) copolymer of Tetrafluoroethylene and the Sulfonyl Fluoride Vinyl Ether (SFVE) CF2=CF2-O-(CF2)2-SO2F industrially produced by Solvay Specialty Polymers. The resulting perfluoropolymer′s functional groups are in their sulfonic acid form, SO3H.
应用
Aquivion?D72-25BS can be used as a formulation additive for the production of polymer electrolyte fuel cell electrodes, manufacturing or repairing of cation-exchange membranes, surface coatings of PTFE membranes to improve their wetting behavior or for the development of superacid catalysts. The addition of further film-forming and/or other volatile or non-volatile chemicals is necessary to impart the desired processing and end-product characteristics.
包装
25, 250 mL in poly bottle
其他说明
Features & Benefits:
Aquivion?D72-25BS is delivered as a colloidal dispersion in highly pure deionized water. It contains the perfluoropolymer′s sulfonic acid form (R-SO3H) of equivalent weight (EW) 720g/mole SO3H at very high solid content of 25% by weight which allows a large variety of subsequent formulations without additional pre-concentration steps.
D72-25BS contains "chemically stabilized" perfluoropolymer in which a large amount of polymer end groups are converted to their inert "CF3" configuration.
Hydrophilicity, swelling and water retention at dry state are more pronounced than for D79-25BS, D83-24B or D98-25BS.
法律信息
Aquivion is a registered trademark of Solvay Group
基本信息
线性分子式 | (C4HF7O4S .C2F4)x |
NACRES | NA.23 |
半岛bd体育手机客户端 性质
质量水平 | 100 |
形式 | dispersion liquid |
eq. wt. | 720±20g/mol (SO3H) |
浓度 | 25±1 % (w/w) |
密度 | 1.14 g/mL |
安全信息
储存分类代码 | 10 - Combustible liquids |
WGK | WGK 2 |
闪点(F) | Not applicable |
闪点(C) | Not applicable |
Sigma-Aldrich