Mechanical and thermal properties improvement of unsaturated polyester resin by incorporation of TiO2 nanoparticle surface modified with titanate. (7th September 2018)

• Record Type: Journal Article
• Authors: Jiang, Chaohua; Jin, Chen; Wei, Min; Yan, Sheng; Chen, Da
• Is Part Of: Materials research express. Volume 5:Number 11(2018)
• Publication Date: 2018-09-07
• Subjects: nanocomposites -- unsaturated polyester resin -- TiO2 nanoparticle -- mechanical properties -- thermal properties; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/aadc42
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: Unsaturated polyester resin (UPR)/titanium dioxide (TiO2 ) nanocomposites were obtained by the incorporation of TiO2 nanoparticle surface modified with titanate in the UPR. The mechanical properties, thermal behavior, anti-ultraviolet aging properties and composite microstructure were tested. The results show that TiO2 nanoparticles have a good compatibility with the UPR matrix. When the contents of TiO2 and titanate coupling agent are 4% and 3% respectively, the impact strength, flexural strength and heat deflection temperature of the composites are 16.28 kJ m −2, 63.23 MPa, and 70.3 °C, respectively, which increase by 890.5%, 77.5% and 23.7% compared with pure UPR. The incorporation of modified TiO2 nanoparticles in the UPR enhances the anti-ultraviolet aging properties of the composites. When 4% TiO2 nanoparticles are added to the UPR, the impact strength retention rate improves by 29.8% compared with pure UPR at 60 days. Strengthening and toughening effects with the incorporation of TiO2 can be achieved by forming a flexible interface layer between the TiO2 and UPR matrix because of the higher rigidity, excellent bonding and compatibility of the TiO2 .