Dihydromyricetin |
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Authors: | Mingliang Xin Yujie Ma Kai Xu Mingcai Chen |
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Affiliation: | 1. Guangzhou Institute of Chemistry, Chinese Academy of Sciences (CAS), Guangzhou, 510650, China 2. University of Chinese Academy of Sciences (CAS), Beijing, 100049, China
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Abstract: | A study on the efficiency of bio-based compound as stabilizer for linear low density polyethylene (LLDPE) is reported. A water extract from Ampelopsis grossedentata (Dihydromyricetin) is used. Its stabilizing activity is compared with two commercial phenolic antioxidants: methyl gallate (MG) and Irganox 1010. Based on the measurement of the oxidation onset temperature (OOT) of LLDPE/antioxidant samples, it is found that the antioxidant ability of the three kinds of antioxidants is in the following order: DMY > 1010 > MG. The antioxidant ability and thermal decomposition activation energy (E a) of antioxidants are further examined by thermal gravimetric analysis. The effects of water extraction on the migration resistance of LLDPE/antioxidants are also evaluated by monitoring the OOT change, demonstrating that DMY retained high stability against migration. |
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