| Properties of PEG/PLA/ENR TPV |
| Received:December 04, 2020 Revised:December 04, 2020 |
| DOI：10.12136/j.issn.1000-890X.2021.04.0249 |
| Key Words: PLA；ENR；PEG；TPV；bio-based；dynamic vulcanization；toughening |
| Author Name | Affiliation | E-mail | | JIANG Gang* | South China University of Technology | jpding@scut.edu.cn | | CHEN Yukun | South China University of Technology | | | DING Jianping | South China University of Technology | | | FANG Yuesheng | South China University of Technology | |
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| Abstract: |
| The properties of polyethylene glycol（PEG）/polylactic acid（PLA）/epoxidized natural rubber（ENR） thermoplastic vulcanizate（TPV） prepared via dynamic vulcanization were studied.The results showed that PEG exhibited excellent effect on TPV.With the increasing of PEG amount，the elongation at break and impact strength of TPV increased significantly，when PEG amount was 10 phr，the elongation at break increased from 16% to 321%，and the impact strength increased from 30.6 kJ·m-2 to 53.6 kJ·m-2.Meanwhile，the tensile strength，tensile modulus and bending strength of the TPV decreased to some extent.The PEG was mainly distributed in the PLA matrix，and the PEG could greatly reduce the glass transition temperature of PLA and improve its crystallization ability.The TPV produced plastic deformation along the stress direction during the stretching process. |
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