文献类型：期刊文献

英文题名：Enhanced performance of rosin-based epoxy composites mixed with carbon nanotubes and cork powders from oriental oak bark

作者：Tao, Pan[1] Li, Jingjing[1] Li, Jian[1] Shang, Shibin[2] Song, Zhanqian[2]

第一作者：Tao, Pan

通信作者：Li, J[1]

机构：[1]Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China

年份：2020

卷号：158

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20204509448902);Scopus(收录号：2-s2.0-85094828377);WOS:【SCI-EXPANDED(收录号:WOS:000596106600003)】；

基金：This work was supported by the National Key R&D Program of China (grant number 2018YFD0600402) and the National Natural Science Foundation of China (grant number 31870555).

语种：英文

外文关键词：Rosin; Epoxy resin; Carbon nanotubes; Cork powders; Thermal properties; Mechanical properties

摘要：Rosin-based epoxy composites with high-impact toughness, tensile strength, modulus, and excellent flame retardance were prepared through a simple and effective approach. In this study, rosin-based epoxy resin (acrylopimaric diglycidyl ester, APA-ER) was synthesized from rosin, and the chemical structures of the products were determined by H-1 NMR and FT-IR. The multiwalled carbon nanotubes (MWCNTs) and cork powders were introduced to the APA-ER to enhance the mechanical and thermal properties of epoxy composites. For the first time, cork powder was used to reinforce the modified rosin-based epoxy resin. Testing results of the mechanical properties indicated that the impact toughness of epoxy composite with 1.5 wt% MWCNTs and 3 wt% cork powders (100-200 mesh) had the highest value (12.34 and 12.04 kJ m(-2)), which was increased by 324% and 314%, respectively, compared to pure resin (2.91 kJ m(-2)). The composites with 1.5 wt% MWCNTs displayed better flexural and tensile performance compared to APA-ER/Cork. Moreover, the DMA, TG, and cone calorimeter results showed that APA-ER/Cork had a better performance in thermal stability and flame retardance than APA-ER/MWCNTs. Additionally, the flame retardance of rosin-based epoxy resin was further improved by adding MWCNTs and cork powder simultaneously. These results showed that the rosin-based epoxy resin could be toughened and strengthened effectively, and the thermal performance was improved by MWCNTs and cork powders. In conclusion, the value-added development of rosin and cork products was increased and applied in the field of functional materials.