Photocurable bulk epoxy resins based on resorcinol derivative through cationic polymerization

编号 020025304

推送时间 20200824

研究领域 林产化工 

年份 2020 

类型 期刊 

语种 英语

标题 Photocurable bulk epoxy resins based on resorcinol derivative through cationic polymerization

来源期刊 JOURNAL OF APPLIED POLYMER SCIENCE

期 第253期

发表时间 20200120

关键词 BIOBASED EPOXY;  RENEWABLE RESOURCES;  THIN-FILMS;  PHOTOPOLYMERIZATION;  PERFORMANCE;  MONOMERS;  DGEBA;  ROSIN;  COMPOSITES;  ETHER; 

摘要 Bio-sourced epoxy resins from resorcinol diglycidyl ether (RDGE) have been obtained by using cationic photopolymerization under UV-light exposure. The photoinduced bulk resin samples were characterized by three-point bending tests, dynamic mechanical analysis, as well as differential scanning calorimetry analysis, and thermogravimetric analysis. The influence of processing parameters, that is, reactant contents, UV irradiation time, and postcuring conditions on the thermomechanical behavior has been pointed out. For instance, the flexural modulus of the most performing materials reaches 4.1 GPa with the flexural strength and the glass-transition temperature of around 105 MPa and 99 degrees C, respectively. Interestingly, our optimized protocol has led to the synthesis of new bio-based materials with more valuable thermal and mechanical properties than those of thermocured materials obtained from petroleum-based commercial epoxy resins. Focus has been given on processing parameters to optimize the final properties of the material and to open an interesting alternative for sustainable building materials.

服务人员 尚玮姣

PDF文件 浏览全文