TY - JOUR
T1 - Hydrophobic and Durable Adhesive Coatings Fabricated from Fluorinated Glycidyl Copolymers Grafted on SiO2 Nanoparticles
AU - Wang, Jianli
AU - He, Ling
AU - Pan, Aizhao
AU - Zhao, Yanrui
N1 - Publisher Copyright:
© 2018 American Chemical Society.
PY - 2019/1/25
Y1 - 2019/1/25
N2 - To obtain durable adhesive, highly hydrophobic, and thermostable coatings, novel fluorinated glycidyl copolymers grafted on SiO2 nanoparticles were prepared by SiO2-Br initiating covalent adhesion of glycidyl methacrylate (GMA) and low surface free energy of dodecafluoroheptyl methacrylate (12FMA) via surface initiated atom transfer radical polymerization. In tetrahydrofuran solution, the obtained random-structured SiO2-g-(PGMA-co-P12FMA) behaves with 120 ± 10 nm core-shell morphology as SiO2-core (110 ± 10 nm) and (PGMA-co-P12FMA) shell (8 ± 2 nm). The films cast by these core-shell particles reveal stronger hydrophobic surfaces (SAC = 114-119°), higher resistance to water absorption (Δm = 2478 ng·Hz-1·cm-2), and harder viscoelasticity (ΔD/Δf = -0.379) compared to the SiO2-g-PGMA film (SAC = 90°, Δm = 6153.7 ng·Hz-1·cm-2, and ΔD/Δf = -0.271) due to the accumulated fluorine-rich surface and increased surface roughness. The introduction of antiaging P12FMA obviously improves the durability of adhesive strength of SiO2-g-(PGMA-co-P12FMA) (1.82 MPa) compared with that of SiO2-g-PGMA (decreased from 1.92 to 1.56 MPa) during the humidity thermal aging cycles. Meanwhile, SiO2-g-(PGMA-co-P12FMA) displays thermostability higher than that of both SiO2-PGMA and PGMA-co-P12FMA, attributed to the contribution of SiO2 and P12FMA. Therefore, it is believed that SiO2-g-(PGMA-co-P12FMA) could be an excellent potential candidate for highly hydrophobic and durable adhesive coatings.
AB - To obtain durable adhesive, highly hydrophobic, and thermostable coatings, novel fluorinated glycidyl copolymers grafted on SiO2 nanoparticles were prepared by SiO2-Br initiating covalent adhesion of glycidyl methacrylate (GMA) and low surface free energy of dodecafluoroheptyl methacrylate (12FMA) via surface initiated atom transfer radical polymerization. In tetrahydrofuran solution, the obtained random-structured SiO2-g-(PGMA-co-P12FMA) behaves with 120 ± 10 nm core-shell morphology as SiO2-core (110 ± 10 nm) and (PGMA-co-P12FMA) shell (8 ± 2 nm). The films cast by these core-shell particles reveal stronger hydrophobic surfaces (SAC = 114-119°), higher resistance to water absorption (Δm = 2478 ng·Hz-1·cm-2), and harder viscoelasticity (ΔD/Δf = -0.379) compared to the SiO2-g-PGMA film (SAC = 90°, Δm = 6153.7 ng·Hz-1·cm-2, and ΔD/Δf = -0.271) due to the accumulated fluorine-rich surface and increased surface roughness. The introduction of antiaging P12FMA obviously improves the durability of adhesive strength of SiO2-g-(PGMA-co-P12FMA) (1.82 MPa) compared with that of SiO2-g-PGMA (decreased from 1.92 to 1.56 MPa) during the humidity thermal aging cycles. Meanwhile, SiO2-g-(PGMA-co-P12FMA) displays thermostability higher than that of both SiO2-PGMA and PGMA-co-P12FMA, attributed to the contribution of SiO2 and P12FMA. Therefore, it is believed that SiO2-g-(PGMA-co-P12FMA) could be an excellent potential candidate for highly hydrophobic and durable adhesive coatings.
KW - SiO particles
KW - coatings
KW - durability of adhesive strength
KW - fluorinated glycidyl copolymer
KW - hydrophobic surface
UR - https://www.scopus.com/pages/publications/85066989641
U2 - 10.1021/acsanm.8b02283
DO - 10.1021/acsanm.8b02283
M3 - 文章
AN - SCOPUS:85066989641
SN - 2574-0970
VL - 2
SP - 617
EP - 626
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 1
ER -