氟塑料性能比较表
氟塑料性能比较表
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 contractrate | % | 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 tensilestrength | kg/cm2 | 280-315 | 420-480 | 315-434 | 140-455 | 189-217 | 455 | |
断裂伸长率 Breakageelongation rate | % | 300 | 200-300 | 50-300 | 200-450 | 250-330 | 100-400 | |
弯曲强度 Bucklingstrength | 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 shockstrength | 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 Heatresisting temperature fou long time | ℃ | 260 | 160-150 | 129 | 288 | 204 | 150-182 | |
热变形温度（18.5kg/cm2） (4.6kg/cm2) Heat deformationtemperature | ℃ | 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 expandingcoefficrent | 102周(Cycle) | 21.6 | 14.4 | 12.6-25.2 | 18 | 14.4-19.8 | 10.8 | |
介电常数 Dielectricconstant | 102周(Cycle) | 2.1 | 2.5 | 7.2-10.0 | 2.1 | 2.1 | 2.6 | |
介质损耗系数 Medium losscoefficrent | 秒(Second) | .0002 | .0015-.0030 | .015-.019 | <.0003 | .0001 | .0008 | |
耐电弧性 Electric areresisting | — | 暂缺Lack | 1.5 | 50-60 | >200 | >165 | 72 | |
水汽渗透性比较 Woisture osmosiscomparing | — | 5 | 1 | 2 | 4 | 4 | 3 | |
磨擦系数比较 Friction coefficientcomparing | — | 2 | 4 | 5 | 1 | 3 | 4 | |
单位体积重量比较 Weight comparing of umtvolume | — | 4 | 1 | 3 | 5 | 4 | 2 | |
成型 加工 性能 Forming charac. temstic
| 注射成型比较 Inject formingcomparing | — | 5 | 1 | 3 | — | 4 | 2 |
线缆成型比较 Wire formingcomparing | — | 4 | 1 | 3 | — | 3 | 2 | |
液塑成型比较 Liqund plasucs formingcomparing | — | — | 1 | 2 | — | — | — | |
浸塑成型比较 Soak plasucs formingcomparing | — | — | 1 | 2 | — | 3 | 4 | |
吹塑成型比较 Blowing formingcomparing | — | — | 1 | — | — | 3 | 2 | |
耐磨性能比较 Wear resisting featurecomparing | — | 6 | 1 | 2 | 4 | 5 | 3 | |
机加工性能比较 Machining characteriruccomparing | — | 优良Excellent | 优良Excellent | 优良Excellent | 优良Excellent | 优良Excellent | 优良Excellent | |
*在这些比较中，数字1至6分别表示性能的优至劣，负的符号（—）表示材料不可作该应用。
*In the*****parings,number l to 6 indicates the feature degree from good tobad and the negative sign(—)indcated the materials cannot beapplied to here.
品名对照：PFA—可溶性聚四氟氯乙烯 PTFE—聚四氟乙烯
ECTFE—乙烯三氟氯乙烯共聚物 FEP—聚全氟代乙丙烯
PVDF—聚偏氟乙烯 ETFE—乙烯四氟乙烯共聚物
