戴經(jīng)理
Nafion質(zhì)子交換膜型號:HS411-NC700庫號:M179709
NC700 0.34m的寬度主要用于燃料電池
Nafion™NC700膜是基于化學(xué)
的全氟磺酸(PFSA)/聚四聚-
氟(PTFE)在酸中的共聚物(H+)
形式,這是加強(qiáng)和展示實(shí)質(zhì)上
與不的相比,氟離子釋放低
聚合物——提高化學(xué)耐久性的標(biāo)志。全氟磺酸™
PFSA膜是質(zhì)子交換膜
(pem),用于各種應(yīng)用,包括
但不限于燃料電池、電解水器和流動
電池。膜的作用是分離和
固體電解質(zhì)在各種電化學(xué)電池中即
需要膜選擇性地輸送陽離子
穿過細(xì)胞連接處。這種聚合物在化學(xué)上
耐,經(jīng)久耐用。該膜位于背襯膜之間
和護(hù)板。這個復(fù)合材料纏繞在一個6的ID上
塑料芯,背面薄膜朝外,如圖所示
如圖1所示。標(biāo)配6英寸塑料卷芯。
3.0 mil背襯膜便于運(yùn)輸
薄膜進(jìn)入自動化制造過程,同時(shí)
0.92 mil的覆蓋物保護(hù)薄膜免受
在中間處理過程中暴露在環(huán)境中
和處理。此外,封面(在組合
用背襯膜)消除快速變化
膜的含水量和性
薄膜從卷筒上取下時(shí)的尺寸。
訂單及包裝信息
Nafion™NC700膜可采用卷筒形式。
膜輥的產(chǎn)品尺寸包括:
寬度:
•標(biāo)準(zhǔn)輥寬為305毫米和610毫米
•特殊訂購的中間寬度在3.175毫米
從200毫米(小)到610毫米(大)的增量
長度:
•標(biāo)準(zhǔn)輥長為100米
•特殊訂單的中間長度10米,20米,和
50米可選
有一個100平方米的低訂單要求非
標(biāo)準(zhǔn)卷筒寬度和每卷包裝附加費(fèi)
非標(biāo)準(zhǔn)長度小于100米的標(biāo)準(zhǔn)寬度。
芯導(dǎo)材與背襯膜相同
采購訂單中的長度。
Thickness and Basis Weight Properties1
Membrane Type
Typical Thickness(µm)
Basis Weight(g/m2)
Nafion™NC700
15
29.5
Physical Properties1
Property2
Typical Values
Test Method
Nafion™NC700
MD
TD
Tensile Strength,Max.,MPa
45
45
ASTM D882
Modulus,MPa
446
421
ASTM D882
Elongation to Break,%
105
61
ASTM D882
Other Properties
Specific Gravity
1.97
See footnote1
Area Specific Resistance,m?•cm2
<20(90%RH)
See footnote3
<30(40%RH)
Hydrogen Crossover Current,mA/cm2
<2.0
See footnote4
Hydrolytic Properties
Water Content,%water5
5.0±3.0
ASTM D570
Water Uptake,%water6
50.0±5.0
ASTM D570
Linear Expansion,%increase
from 50%RH,23°C(73°F)
to water soaked,23°C(73°F)
to water soaked,100°C(212°F)
MD
2
4
TD
2
4
ASTM D756
ASTM D756
輥芯引線可按每輥標(biāo)稱收費(fèi)提供。
詳情請聯(lián)系Nafion™客戶服務(wù)
可用性。
當(dāng)訂購標(biāo)準(zhǔn)的100米卷時(shí),卷是不拼接的
長度。非標(biāo)準(zhǔn)軋輥長度可能包含拼接
在以下條件下:小距離為5米
在拼接之間,每卷多可拼接3次
長度小于100米。
膜的含水量和調(diào)理
會不會影響其尺寸,而改動可能不會呢
在長度、寬度和厚度方向上對稱。
一旦床單被取下,薄膜就會
對工作場所的環(huán)境條件作出反應(yīng)。
如果薄膜留在背襯膜上,則
膜對相對濕度(RH)條件的響應(yīng),
例如,可能導(dǎo)致膜/的結(jié)合
背襯薄膜使其卷曲。此外,某些制造業(yè)
客戶執(zhí)行的步驟也可能影響
膜的尺寸和平整度。
如果在采購訂單中 卷芯是
貼在膜上如圖2所示。一卷
Measurements taken with membrane conditioned to 23°C(73°F),50%RH.
2 Where specified,MD—machine direction,TD—transverse direction.Condition state of membrane given.
3 Measured in MEA at 80°C,1.5 A/cm2,stoichiometric ratios 1.5H2/1.8air,and 250 kPaa
4 Hydrogen crossover measured in MEA on H2,80°C,fully humidified gases,and 1 atm total pressure.This is not a routine test.
5 Water content of membrane conditioned to 23°C(73°F)and 50%RH(dry weight basis).
6 Water uptake from dry membrane to conditioned in water at 100°C(212°F)for 1 hr(dry weight basis).
Product Labeling
A self-adhesive product label,with information content
similar to Figure 3,is located on the inside of the roll core
and the outside over-wrap of each roll.The label indicates
the product roll’s width and length in both English and
metric units.
Figure 3.Finished Product Roll Label
GMC:D13278258
Product:Nafion™NC700
Width:12 IN x Length:328 FT
Width:305 MM x Length:100.0 M
Manufacture Date:01/2019
•GMC is a product setup code specific to the thickness,
roll width,length,and other packaging features.
•Manufacture Date is the wide-stock roll’s slit date
(mm/yyyy).
Recommended Roll Storage Conditions
Unopened roll packages of Nafion™PFSA membrane
should be stored in the original shipping box,out of
direct sunlight,in a climate-controlled environment
maintained at 10–30°C(50–86°F)and 30–70%RH.
Before opening the package,pre-condition the membrane
roll to the processing area temperature for 24 hr.
Once opened and exposed to the environment,the
membrane will equilibrate to the ambient RH and change in
dimensions accordingly.Membrane order dimensions are
specified and measured at 23°C(73°F)and 50%RH.
Handling Practices
Ventilation should be provided for safe handling and
processing of Nafion™PFSA membrane.The amount of
local exhaust necessary for processing Nafion™PFSA
membrane at elevated temperatures will depend on the
combined factors of membrane quantity,temperature,and
exposure time.