UV-curable epoxy acrylate resin(EA)was synthesized by the reaction of epoxy resin with acrylic acid.The resulting EA was copolymerized with 3-methacryloxy propyl trimethoxysilane(MPS)as a coupling agent under UV irrad...UV-curable epoxy acrylate resin(EA)was synthesized by the reaction of epoxy resin with acrylic acid.The resulting EA was copolymerized with 3-methacryloxy propyl trimethoxysilane(MPS)as a coupling agent under UV irradiation to obtain the scratch-resistant coating.The prepared UV-curable,hard and transparent coatings were tested by various methods such as hardness test,tape adhesion test and scratch resistance test.Results obtained from these investigations showed that the properties of the coatings were improved with the increase in the content of silane coupling agent.Thermal behavior of the coatings was also studied and it was found that the thermal stability of coatings was improved by the incorporation of siloxane.展开更多
A two-step approach was employed to create a composite coating consisting of TiO_(2)nanoparticles and extremely elastic polydimethylsiloxane(PDMS).The TiO_(2)-PDMS composite coating demonstrates exceptional superhydro...A two-step approach was employed to create a composite coating consisting of TiO_(2)nanoparticles and extremely elastic polydimethylsiloxane(PDMS).The TiO_(2)-PDMS composite coating demonstrates exceptional superhydrophobicity and antifouling efficacy,as evidenced by the static contact angle,contact angle hysteresis,and antifouling tests.The electron microscopic analysis reveals that the composite coating consists of TiO_(2)particles and agglomerates,which forms a dual-level roughness structure at the nanometer and micron scales.This unique structure promotes the Cassie-Baxter state of the coating when in contact with the liquid,resulting in an increased static contact angle and a reduced contact angle hysteresis.The PDMS primer facilitates the attachment of TiO_(2)particles,resulting in a composite coating with excellent scratch-resistant characteristics.Additionally,the PDMS primer possesses the capacity to retain low surface energy modifiers.Simultaneously,the PDMS primer serves as a reservoir for a low surface energy modifier,enhancing the self-repairing properties of the TiO_(2)-PDMS composite coating.This composite coating exhibits effective self-cleaning capabilities against many forms of contaminants,including liquids,solids,and slurries.展开更多
文摘UV-curable epoxy acrylate resin(EA)was synthesized by the reaction of epoxy resin with acrylic acid.The resulting EA was copolymerized with 3-methacryloxy propyl trimethoxysilane(MPS)as a coupling agent under UV irradiation to obtain the scratch-resistant coating.The prepared UV-curable,hard and transparent coatings were tested by various methods such as hardness test,tape adhesion test and scratch resistance test.Results obtained from these investigations showed that the properties of the coatings were improved with the increase in the content of silane coupling agent.Thermal behavior of the coatings was also studied and it was found that the thermal stability of coatings was improved by the incorporation of siloxane.
基金Funded by the National Science and Technology Major Project(No.J2019-VII-0015-0155)the National Natural Science Foundation of China(No.51705533)。
文摘A two-step approach was employed to create a composite coating consisting of TiO_(2)nanoparticles and extremely elastic polydimethylsiloxane(PDMS).The TiO_(2)-PDMS composite coating demonstrates exceptional superhydrophobicity and antifouling efficacy,as evidenced by the static contact angle,contact angle hysteresis,and antifouling tests.The electron microscopic analysis reveals that the composite coating consists of TiO_(2)particles and agglomerates,which forms a dual-level roughness structure at the nanometer and micron scales.This unique structure promotes the Cassie-Baxter state of the coating when in contact with the liquid,resulting in an increased static contact angle and a reduced contact angle hysteresis.The PDMS primer facilitates the attachment of TiO_(2)particles,resulting in a composite coating with excellent scratch-resistant characteristics.Additionally,the PDMS primer possesses the capacity to retain low surface energy modifiers.Simultaneously,the PDMS primer serves as a reservoir for a low surface energy modifier,enhancing the self-repairing properties of the TiO_(2)-PDMS composite coating.This composite coating exhibits effective self-cleaning capabilities against many forms of contaminants,including liquids,solids,and slurries.
