靠逼视频,日韩三级中文字幕91,很狠狠很久久久久久久之,1级蜜臀av

Home Products Industrial

Proton-exchange Membrane

PEM: the core component of fuel cell, plays a vital role in the performance and life of the cell. Structure and principle of PEM: composite membrane based on expanded polytetrafluoroethylene (ePTFE) coated with perfluorosulfonic acid resin; Three layer structure: the middle layer is ePTFE, and the upper and lower layers are sulfonic acid resin. The sulfonic acid group in the membrane absorbs water, and H+combines with the water molecule, jumping from a fixed sulfonic acid radical site to another sulfonic acid radical site in the form of hydrated proton (H3O+) for proton conduction. Cobbetter's years of experience in ePTFE membrane development and membrane material coating can not only ensure the excellent performance of the PEM, but also reduce the differences between batches of the PEM, and ensure the consistency of product quality.
Recommended Applications:
Request a Quote

Description

The Role of PEM

  • Conducting protons
  • Isolate gas
  • Obstructing electrons

Specifications

Basic Parameters

Result Test Conditions
Thickness 10±1 μm 25°C 50%RH
Surface density 21±2 g/cm3 25°C 50%RH


Hydrolysis Performance

Result Test Conditions
Swelling Rate MD ≤5.0 % 100°C 10min
TD ≤5.0 % 100°C 10min


Mechanical Properties

Result Test Conditions
Tensile Strength MD ≥60 MPa 25°C 50%RH
TD ≥80 MPa 25°C 50%RH
Elastic Modulus MD ≥400 MPa 25°C 50%RH
TD ≥600 MPa 25°C 50%RH


Electrochemical Performance

Result Test Conditions
Proton Conducctivity ≥110 mS/cm 25°C water bath
Ion Exchange Equivalent 1000-1200 g/mol acid-base titration

Ordering Information

Related Products

久久久黄色一级| a 欧美一区| 国产精品色呦呦在线观看| 麻豆成人久久精品一区| 毛片污污污污污污网站91| 欧美性爱一曲| 欧美一区二区三区人人看看| 91黄片免费深夜观看| 大陆亚洲国产欧美一区| 啊啊啊啊啊啊啊啊,一区在线| 五月天色综合| 亚洲成人综合网在线观看| 亚洲 欧美 中文 在线 视频| 人人夜夜澡人人爽| 看99久久思热视频| 女人操逼网站| 影院二区 国产| 日本久久久久久9999视频| 黄色电影网址二区| 夜夜草二三四区| 日韩性爱国产精品| 天天干天天弄天天搞| 亚洲午夜福利视频网站| 偷拍簧片免费| 99久久久久久三级免费播放| 激情另类一区| 加勒比a一区二区| 好吊妞日韩一区| 91.n精品视频| 国产干b视频| t日韩激情综合网| www .艹B| 人妻大黑香蕉| 不卡激情在线婷婷| 久久中文字目视频| 刘玥 欧美专区 在线播放| 69成人堂| 夂久久精品| 美女图片视频黄色的| 人妻精品第页海角| 天天搞 夜夜操|