Fabricated Biobased Eucommia Ulmoides Gum/Polyolefin Elastomer Thermoplastic Vulcanizates into a Shape Memory Material

• DOI: 10.1021/acs.iecr.8b04710
• Publication Date: 2019-04-08T14:44:33Z
• Authors: Hailan Kang; Ming Gong; Mingze Xu; Haoyu Wang; Yushi Li; Qinghong Fang; Liqun Zhang
• Keywords: Polyolefin; Thermoplastic elastomer

Partially biobased thermoplastic vulcanizates (TPVs) with shape memory properties were prepared by in situ dynamic vulcanization of eucommia ulmoides gum (EUG) and polyolefin elastomer (POE). The cross-linked EUG phase dispersed POE matrix acted as a framework structure throughout the phase, which limited irreversible deformation provided sufficient resilience force to drive molecular chains recover their initial shape. results demonstrated that EUG/POE TPVs exhibited excellent high fixity recovery rate (all above 95%). dimensions 0.4–1.6 μm matrix, more resulted large aggregates. considerably improved permanent POE, tensile set linearly decreases from 134% 4% increasing contents. mechanical changed little after being reprocessed twice, exhibiting good reprocessability. All these remarkable advantages make candidates for materials.