|
单位 Unit
性能 Performance |
品名
Article name |
PFA |
ECTFE |
PVDF |
PTFE |
FEP |
ETFE |
|
简称
Abbreviation |
— |
F-30 |
PVF-2 |
F-4 |
F-46 |
F-40 |
|
比重
Specific gravity |
— |
2.12-2.17 |
1.68 |
1.76-1.78 |
2.13-2.20 |
2.12-2.17 |
1.73-1.75 |
|
成型收缩率
Forming contract rate |
% |
4 |
2-2.5 |
2-3 |
3-6 |
3-6 |
3-4 |
|
硬度
Hardness |
肖氏—D
Shore—D |
64 |
75 |
75 |
50-60 |
56 |
75 |
|
断裂拉伸强度
Breakage tensile strength |
kg/cm2 |
280-315 |
420-480 |
315-434 |
140-455 |
189-217 |
455 |
|
断裂伸长率
Breakage elongation rate |
% |
300 |
200-300 |
50-300 |
200-450 |
250-330 |
100-400 |
|
弯曲强度
Buckling strength |
kg/cm2 |
暂缺Lack |
390 |
602-665 |
不断裂
Not beakage |
210 |
385 |
|
弯曲模量
Buckling modulus |
kgcm2 |
7000 |
6000 |
17500 |
4900-7700 |
6300 |
14000 |
|
缺口冲击强度
Notch shock strength |
kgcm/cm |
不断裂
Not breakage |
不断裂
Not breakage |
21.8 |
16.3 |
不断裂
Not breakage |
不断裂
Not breakage |
|
熔点温度
Melting point |
℃ |
310 |
241 |
171 |
327 |
275 |
270 |
|
长期耐热温度
Heat resisting temperature fou long time |
℃ |
260 |
160-150 |
129 |
288 |
204 |
150-182 |
|
热变形温度（18.5kg/cm2）
(4.6kg/cm2)
Heat deformation temperature |
℃ |
暂缺Lack |
77 |
87-115 |
49 |
暂缺Lack |
71 |
|
℃ |
74 |
116 |
132-149 |
121 |
70 |
104 |
|
低温脆性
Brittle point |
10mcm/cm℃ |
暂缺Lack |
-101 |
-62 |
-268 |
-73 |
-201 |
|
热膨胀系数
Thermal expanding coefficrent |
102周(Cycle) |
21.6 |
14.4 |
12.6-25.2 |
18 |
14.4-19.8 |
10.8 |
|
介电常数
Dielectric constant |
102周(Cycle) |
2.1 |
2.5 |
7.2-10.0 |
2.1 |
2.1 |
2.6 |
|
介质损耗系数
Medium loss coefficrent |
秒(Second) |
.0002 |
.0015-.0030 |
.015-.019 |
<.0003 |
.0001 |
.0008 |
|
耐电弧性
Electric are resisting |
— |
暂缺Lack |
1.5 |
50-60 |
>200 |
>165 |
72 |
|
水汽渗透性比较
Woisture osmosis comparing |
— |
5 |
1 |
2 |
