Article
  • Effect of Boehmite and Vermiculite on Flame Retardancy and Mechanical Properties of PET
  • Xiang Li and Songgang Fang

  • Hunan Chemical Vocational Technology College, Zhuzhou 412000, China

  • PET의 난연 특성 및 기계적 특성에 대한 Boehmite와 Vermiculite의 영향
  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

The effects of boehmite (BM) and vermiculite (VMT) on flame retardancy, combustion behavior and thermal degradation behaviors of polyethylene terephthalate (PET), BM/PET, and VMT/BM/PET composites were investigated by methods of limited oxygen index (LOI) measurement, vertical burning test, cone calorimeter test and thermogravimetry analysis (TG). The results showed that BM can effectively flame retardancy PET, when 12% BM was added into PET, 12-BM/PET composite possessed LOI value of 32.4% and V0 rating (3.2 mm) in UL-94 test. The flame retardancy, thermal stability and combustion behavior data of 2.5-VMT/BM/PET composite were better than that of 12-BM/PET composite, indicates that appropriate amounts of VMT and BM in PET had synergistic flame-retardant effects. Replace part of BM with VMT, with the increased of VMT substitution amount, the flexural strengths and tensile strengths of VMT/BM/PET composites increased at first, and then decreased, the flexural modules was increased and the notched izod impact strength was decreased.


Keywords: boehmite, vermiculite, synergistic flame-retardant effects, polyethylene terephthalate, cone calorimeter test.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2022; 46(4): 463-469

    Published online Jul 25, 2022

  • 10.7317/pk.2022.46.4.463
  • Received on Jan 13, 2022
  • Revised on Apr 25, 2022
  • Accepted on Apr 25, 2022

Correspondence to

  • Xiang Li
  • Hunan Chemical Vocational Technology College, Zhuzhou 412000, China

  • E-mail: iverson25@126.com