|Liu, Zengshe - Kevin|
|CHEN, JIE - Chinese Academy Of Forestry|
Submitted to: Meeting Abstract
Publication Type: Proceedings
Publication Acceptance Date: 4/14/2015
Publication Date: 5/22/2015
Citation: Liu, Z., Chen, J. 2015. Exploring application of cardanol from natural resource: Chemistry and products. In: Proceedings of the 2nd Bio-based Polymer Materials Conference, April 22-23, 2015, Linyi, China. p. 21.
Technical Abstract: Cardanol (cashew nut shell liquid, CNSL) is a renewable raw material derived from a byproduct of the cashew nut processing industry. First, two natural plasticizers derived from cardanol, cardanol acetate (CA) and epoxidated cardanol acetate (ECA), have been synthesized and characterized by 1HNMR and 13CNMR. The plasticizing effects of the CA and ECA on semi-rigid polyvinyl chloride (PVC) were investigated. Two commercial phthalate ester plasticizers, bis (2-ethylhexyl) benzene-1,4-dicarboxylate (DOTP) and diisononyl phthalate (DINP), were used as controls. Mechanical and thermal properties, compatibility, thermal stability, microstructure, and workability of obtained PVC films were investigated and reported. Results indicated that natural plasticizer ECA, overall, had superior flexibility, compatibility, thermal stability, and workability comparable to both controls. Second, a cardanol derivative, polyepoxide cardanol glycidyl ether (PECGE), was synthesized and used as a reactive diluent for petroleum-based epoxy resin. Mechanical and heat-resistant properties of the cured epoxy resin containing PECGE were evaluated. The tensile strength, elongation at break, and heat-resistant property of the obtained resin were all improved, while the flexural and compressive strengths of the resin only slightly decreased, implying the potential of PECGE as a very promising biobased reactive diluent for epoxy resin.