Acrylated epoxidized soybean oil as a styrene replacement in a dicyclopentadiene-modified unsaturated polyester resin

作者：Wu Yili; Li Kaichang^*

来源：Journal of Applied Polymer Science, 2018, 135(19): 46212.

DOI：10.1002/app.46212

• biopolymers and renewable polymers
• composites
• polyesters
• resins
• thermosets

Nonvolatile and nonhazardous acrylated epoxidized soybean oil (AESO) was investigated as a replacement for hazardous styrene in a commercial unsaturated polyester (UPE) resin [a mixture of styrene and a dicyclopentadiene (DCPD)-modified UPE (DCPD-UPE)]. DCPD-UPE was prepared from ethylene glycol, diethylene glycol, maleic anhydride, and DCPD. Mixtures of AESO and DCPD-UPE [AESO-(DCPD-UPE) resins] were found to be homogeneous, easily pourable solutions at room temperature. The glass-fiber-reinforced composites from the AESO-(DCPD-UPE) resins were comparable or even superior to those from the mixture of styrene and DCPD-UPE in terms of the flexural and tensile strengths. The viscoelastic properties of the cured AESO-(DCPD-UPE) resins and the corresponding glass-fiber-reinforced composites were characterized by dynamic mechanical analysis. The viscosities and pot lives of the AESO-(DCPD-UPE) resins as a function of the temperature were studied. The curing mechanism of the AESO-(DCPD-UPE) resins is discussed.

• 出版日期2018-5-15