CAS号 9011-17-0 |
聚(偏二氟乙烯-co-六氟丙烯)
Poly(vinylidene fluoride-co-hexafluoropropylene)
average Mw ~400,000 (bimodal distribution), average Mn ~130,000, pellets 别名:
PVDF-HFP
线性分子式 (-CH2CF2-)x[-CF2CF(CF3)-]y
MDL number MFCD00212573
Physical form
晶体,热塑性共聚物。
Application
电线电缆涂料、耐腐蚀软管以及管道和罐槽的内衬。
Features and Benefits
的热稳定性、耐化学性和耐磨性,抗紫外线降解,自熄性材料,并且老化时可保持各种特性。温度在零下时具有改善的柔韧性、耐应力开裂性,并且断裂伸长超过聚(偏二氟乙烯)。
性质
Related Categories Fluorocarbons, Hydrophobic Polymers, Materials
Science, Polymer Science, Polymers
form pellets
melt index 3.5-7.5
g/10 min (230°C/12.5kg)
mol wt average Mn ~130,000
average Mw ~400,000
(bimodal distribution)
impact strength 12-20 ft-lb/in. (Izod, ASTM D 256)
dielectric constant 9.4-10.6, 100 Hz (ASTM D 150)
hardness 65-70 (Shore
D, ASTM D 2240)
refractive index n20/D 1.41
viscosity 23,000-27,000
poise(230 °C)(100 sec-1; typical)(lit.)
mp 115-135 °C
transition temp
brittleness temperature -62 °C (ASTM 2800)
Tm 140-145 °C (ASTM D 3418)
density 1.77 g/mL at 25 °C