Novel hydrophobic nanocomposites for natural gas pipelines coatings
Field emission scanning electron microscope revealed that the Polyvinylidene fluoride (PVDF) nanocomposites exhibited features of symmetric membrane.
Excellent protection in corrosive environments
Incorporation of 0.4 wt% of 3-aminopropyltriethoxysilane-graphene oxide (APTES-GO) into the PVDF matrix led to a significant decrease in wettability with water contact angle (CA) of 102° as compared to 62° for 0.4 wt% GO and 80° for neat PVDF. PVDF/APTES-GO has increased 2,350% in tensile modulus as compared to 75% increased in PVDF/GO nanocomposite. Carbon steel plate, which has similar properties with commercial carbon steel pipelines was used in the salt spray and acid immersion tests. PVDF/APTES-GO nanocomposite coating was found to exhibit excellent corrosion protection and good adhesion property than other coatings in corrosive environments.
The study is published in: Journal of Natural Gas Science and Engineering, Volume 42, June 2017, Pages 190–202