6
Evaluation of rubber used to waterproof, stainless steel pipe fittings Mechanical type.
Part 6
About the durable evaluation of the fluorine-contained rubber to ozone water by
long-term experiment.
Tsutomu NAKAMURA *1
Hiroshi IIZUKA *4
Kyousuke SAKAUE *2
Tomoo INADA *1 Yoshito OHTAKE *5
1
*4
Kazuharu TSUNETO *3
*2
SUGA CO. LTD.
NIKKEN SEKKEI Ltd.
*5
Meiji University *3 O.N. INDUSTRIES LTD.
Chemicals Evaluation and Research Institute, Japan
Synopsis; The purpose of this long-term experiment is to confirm the durability of the fluorine-contained rubber to
ozone water. Experimentally, using the specimen to have made with fluorine-contained rubber, it made come
into ozone water. The item to evaluate is the following 3 items.
1) Change of the outward appearance
2) Change of the physical properties
3) Change of the structure
In the long-term experimental result, degradation and the change of the structure were a little with the surface
of the specimen confirmed.
1.1
1
1)
2)
3)
ED-OW-8-CERI
EPDM HNBR
1) 8)
EPDM
9)
10
1
1.2
20
10)
40
60
1)
2)
3)
1mg/L 5mg/L 10mg/L
25±2℃
250±25ml/min
3
4)
1.3
40
60
1)
2)
4)
5)
2
2.5
2mm 6
4
20mm×20mm×2mm 3
2.1
1)
HF
500mm/min
6
VH-8000
FT-IR
1)
FTS-6000 UMA-500
2)
3)
4)
5)
8.0cm
256
ATR
40℃×24
-1
2)
0.5ml
3.1
3
3)
2
5
1
4)
1,2
1
1mg/L
5mg/L
10mg/L
40
2
1
1
1
60
2
1
1
1
2
3.2 SEM
2.2 SEM
1)
2)
3)
4)
JSM-5610V
5kV
500
2000
40℃×24
3-1
3-6
1)
2
3-1
3-3
3)
5)
10°
2.3
1)
2)
3-4
23℃
JIS K 6253-2006
50
23℃
JIS K 6251-2010
50
3-5
3)
2.4
1)
2)
3)
T2000
40
3-1
60
1ppm
SEM
2000
2-1
5
40
40
3-2
60
5ppm
SEM
2000
60
1mg/L
A71
5mg/L
A71
A72
A71
10mg/L
A71
A71
2-2
A72
IRHD/M
5
40
1mg/L
3-3
40
10ppm
60
SEM
2000
60
72.4
72.5
5mg/L
71.7
71.9
10mg/L
72.5
72.3
73.3
3.4
3-1
3-3
1)
2)100
40
3-4
3-1
60
1ppm
SEM
2000
MPa
3
40
60
1mg/L
14.1
5mg/L
15.5
14.5
14.1
10mg/L
14.9
13.6
12.0
3-2
3
40
3-5
60
5ppm
SEM
2000
40
60
1mg/L
330
5mg/L
350
340
10mg/L
350
340
3-3
350
100
270
MPa
3
40
3-6
40
10ppm
60
SEM
2000
3.3
2-1
2-2
3.5
1)
2)
60
1mg/L
3.85
5mg/L
3.81
3.79
10mg/L
3.73
3.45
3.95
FT-IR
4-1
1)
3.97
4-2
IR
-1
1390 1300 1000 800cm
-1
1690
-1
-1
1460cm
100
(5) FT-IR
-1
2) 1690cm
1460cm
TAIC
0.30
1300 1000cm-1
0.25
Absorbance
0.20
1390cm-1
0.15
1460cm-1
0.10
800cm-1
1690cm-1
0.05
1)
0.00
3500
3000
2500
2000 1800 1600 1400 1200 1000 800
Wave number
4-1 IR
1ppm×40
1
pp795 2009
2)
2
0.07
1300 1000cm-1
0.06
pp799 2009
3)
0.05
Absorbance
3
0.04
1390cm-1
1460cm-1
0.03
800cm-1
0.02
pp803 2009
4)
1690cm-1
4
0.01
pp807 2009
0.00
3500
3000
2500
2000 1800 1600 1400 1200 1000 800
Wave number
5
7
4-2 IR
10ppm×60
pp855 2010
6
8
(1)
pp859
2010
7)
HNBR
pp1741
(2) SEM
2011
8)
2
pp1745 2011
9
(3)
pp24 2008
10)
(4)
3
pp1219
2012

長さの単位_mとcm