Synthesis and antioxidative properties in natural rubber of novel macromolecular hindered phenol antioxidants containing thioether and urethane groups

2015 ◽  
Vol 111 ◽  
pp. 232-238 ◽  
Author(s):  
Wenjian Wu ◽  
Xingrong Zeng ◽  
Hongqiang Li ◽  
Xuejun Lai ◽  
Hu Xie
Keyword(s):  
Natural Rubber ◽  
Antioxidative Properties ◽  
Hindered Phenol ◽  
Phenol Antioxidants

Phenolic antioxidants based on calixarene: Synthesis, structural characterization, and antioxidative properties in natural rubber

2017 ◽  
Vol 134 (31) ◽  
pp. 45144 ◽  
Author(s):  
Hongqiang Li ◽  
Yong Zhong ◽  
Wenjian Wu ◽  
Lin Zhang ◽  
Xuejun Lai ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Structural Characterization ◽  
Phenolic Antioxidants ◽  
Antioxidative Properties

Influence of the chemical structure of para‐bridged group on the antioxidant behavior of hindered phenol antioxidants in HDPE resin

2020 ◽  
Vol 137 (46) ◽  
pp. 49505
Author(s):  
Cuiqin Li ◽  
Yang Li ◽  
Xinxin Xia ◽  
Jin Huang ◽  
Peng Sun ◽  
...  
Keyword(s):  
Chemical Structure ◽  
Hindered Phenol ◽  
Phenol Antioxidants

scholarly journals Natural rubber/nitrile butadiene rubber/hindered phenol composites with high-damping properties

2015 ◽  
Vol 6 (4) ◽  
pp. 239-250 ◽  
Author(s):  
Xiuying Zhao ◽  
Jingna Yang ◽  
Detao Zhao ◽  
Yonglai Lu ◽  
Wencai Wang ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Butadiene Rubber ◽  
Damping Properties ◽  
Nitrile Butadiene Rubber ◽  
Hindered Phenol

Synthesis of A Star-Shaped Macromolecular Antioxidant Based on β-Cyclodextrin and its Antioxidative Properties in Natural Rubber

2015 ◽  
Vol 300 (9) ◽  
pp. 893-900 ◽  
Author(s):  
Hu Xie ◽  
Hongqiang Li ◽  
Xuejun Lai ◽  
Wenjian Wu ◽  
Xingrong Zeng
Keyword(s):  
Natural Rubber ◽  
Antioxidative Properties

Thermo-oxidative aging resistance and mechanism of a macromolecular hindered phenol antioxidant for natural rubber

2017 ◽  
Vol 50 (4) ◽  
pp. 372-387
Author(s):  
Wenjian Wu ◽  
Hongqiang Li ◽  
Shuyan Yang ◽  
Xuejun Lai ◽  
Hongbo Fan ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Polymer Materials ◽  
Oxidation Induction Time ◽  
Elongation At Break ◽  
Oxidative Aging ◽  
Aging Resistance ◽  
New Strategy ◽  
Hindered Phenol ◽  
Polymer Aging ◽  
Very High

Macromolecular antioxidant due to its low physical loss, high thermal stability, and good compatibility has been considered to be a promising candidate to inhibit polymer aging. In this study, thermo-oxidative aging resistance and antioxidative mechanism of a macromolecular hindered phenol antioxidant, namely, polyhydroxylated polybutadiene containing thioether binding 2, 2′-thiobis (4-methyl-6-tert-butylphenol) (PHPBT-b-TPH) for natural rubber (NR) vulcanizate was studied in detail by oxidation induction time and accelerated thermal aging tests. The results showed that the antioxidative efficiency of PHPBT-b-TPH was very high. When the amount of PHPBT-b-TPH was only 1 phr, the NR vulcanizate could exhibit excellent thermo-oxidative aging resistance, obviously higher than that of NR vulcanizate with low-molecular-weight antioxidant TPH. After aged at 100°C for 168 h, the retentions of tensile strength and elongation at break of NR vulcanizate with PHPBT-b-TPH were 43.6% and 58.6%, respectively. However, those of NR vulcanizate with TPH were 35.6% and 54.5%. In addition, it was found that both thioether and urethane groups in PHPBT-b-TPH had antioxidative ability and had synergistic effect with hindered phenol. Through our findings, new strategy to design and synthesize the macromolecular antioxidant with multi-antioxidative groups for rubber materials and other polymer materials could be developed.

Hindered phenol functionalized graphene oxide for natural rubber

2018 ◽  
Vol 210 ◽  
pp. 239-242 ◽  
Author(s):  
Lin Zhang ◽  
Hongqiang Li ◽  
Xuejun Lai ◽  
Wenjian Wu ◽  
Xingrong Zeng
Keyword(s):  
Graphene Oxide ◽  
Natural Rubber ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Hindered Phenol
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