DihydromyricetinAn effective non-hindered phenol antioxidant for linear low-density polyethylene stabilisation

被引：0
作者：
Mingliang Xin
Yujie Ma
Kai Xu
Mingcai Chen
机构：
[1] Chinese Academy of Sciences (CAS),Guangzhou Institute of Chemistry
[2] University of Chinese Academy of Sciences (CAS),undefined
来源：
Journal of Thermal Analysis and Calorimetry | 2013年 / 114卷
关键词：
Dihydromyricetin; Antioxidant; Linear low density polyethylene; Thermal stability;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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 (Ea) 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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页码：1167 / 1175
页数：8
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[1]  
Nedelcev T(2007)Synthesis and characterization of the new silane-based antioxidant containing 2,6-di- Polym Adv Technol 18 157-164
[2]  
Krupa I(1992)-butylphenolic stabilizing moiety Polym Adv Technol 3 443-455
[3]  
Csomorova K(2007)Exploitation of the current knowledge of antioxidant mechanisms for efficient polymer stabilization Polym Degrad Stab. 92 2155-2162
[4]  
Janigova I(1999)Stabilisation of ultra-high molecular weight polyethylene with vitamin E Polym Degrad Stab. 64 145-156
[5]  
Rychly J(1999)The antioxidant role of alpha-tocopherol in polymers II. Melt stabilising effect in polypropylene Polym Degrad Stab. 65 143-151
[6]  
Pospíšil J(2000)The antioxidant role of alpha-tocopherol in polymers III. Nature of transformation products during polyolefins extrusion Polym Polym Compos 8 537-542
[7]  
Bracco P(2001)Vitamin E: an effective biological antioxidant for polymer stabilisation Polymer 42 2915-2939
[8]  
Brunella V(2001)The antioxidant role of vitamin E in polymers. IV. Reaction products of DL-alpha-tocopherol with lead dioxide and with polyolefins Polym Degrad Stab 73 491-503
[9]  
Zanetti M(2002)The antioxidant role of vitamin E in polymers V. Separation of stereoisomers and characterisation of other oxidation products of dl-alpha-tocopherol formed in polyolefins during melt processing Planta Med 68 995-998
[10]  
Luda MP(2003)Polyphenols from the heartwood of Yao Xue Xue Bao. 38 241-244
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