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<p>The hindered phenolic main antioxidant DBHMIE and its auxiliary antioxidant 168 were applied to an ABS resin, and their effects on the antiaging performance of the ABS resin were examined. The test results revealed that the oxidation induction temperatures of the ABS resins with DBHMIE, 168, and their combination were 11.5°, 5.8° and 14.8°C, respectively, and the initial decomposition temperature of the T1% sample was more than 29°C higher than that of the A spline without antioxidants. After thermal aging experiments, the tensile strength of the D-spline was lower due to the synergistic effect of DBHMIE and 168, the D-spline was 0.95 MPa lower than that of the A spline, and higher impact strength, 1.592&#xa0;kJ m<sup>–2</sup> higher than that of the A spline, and the impact strength decreases the least, and the impact strength retention rate was 96.12%. The initial decomposition temperature of the D spline minimally&#xa0;changed throughout the aging experiment. Although the yellow index (YI) of the D spline was greater, the changes in YI and chromatic aberration (ΔE) became slower. The combination of DBHMIE and 168 had a better effect on the anti-thermal and oxidative aging of the ABS resin.</p>

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Synergistic effect of the main and auxiliary antioxidants in ABS resin

  • 期刊论文

  • 发表日期：

    2026年5月19日

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  • Wei Dong,
  • Feng-Hang Yao,
  • Hong-Yan Cui,
  • Jie Chen

摘要

The hindered phenolic main antioxidant DBHMIE and its auxiliary antioxidant 168 were applied to an ABS resin, and their effects on the antiaging performance of the ABS resin were examined. The test results revealed that the oxidation induction temperatures of the ABS resins with DBHMIE, 168, and their combination were 11.5°, 5.8° and 14.8°C, respectively, and the initial decomposition temperature of the T1% sample was more than 29°C higher than that of the A spline without antioxidants. After thermal aging experiments, the tensile strength of the D-spline was lower due to the synergistic effect of DBHMIE and 168, the D-spline was 0.95 MPa lower than that of the A spline, and higher impact strength, 1.592 kJ m–2 higher than that of the A spline, and the impact strength decreases the least, and the impact strength retention rate was 96.12%. The initial decomposition temperature of the D spline minimally changed throughout the aging experiment. Although the yellow index (YI) of the D spline was greater, the changes in YI and chromatic aberration (ΔE) became slower. The combination of DBHMIE and 168 had a better effect on the anti-thermal and oxidative aging of the ABS resin.