Article
  • Improvement of Mechanical Strength of Polyolefin Elastomer/Polystyrene Blends using High-Intensity Ultrasound
  • Jae Woo Park and Sangmook Lee*,†

  • PO Application Development Team, Lotte Chemical Corp., 15Fl, Lotte world Tower, 300, Olympic-ro, Songpa-gu, Seoul 05551, Korea
    *Division of Chemical Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Gyeonggi-do 448-701, Korea

  • 고강도 초음파를 이용한 Polyolefin Elastomer/Polystyrene 블렌드의 기계적 강도 향상
  • 박재우 · 이상묵*,†

  • 롯데케미칼, *단국대학교 화학공학과

  • 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 effect of high-intensity ultrasound on blends of polyolefin elastomer (POE) and polystyrene (PS) was investigated. The POE/PS blend was prepared using a melt mixer equipped with an ultrasonic irradiation device, and the rheological behavior, mechanical properties, morphology, spectroscopic analysis were evaluated using a rheometer, universal testing machine (UTM), scanning electron microscope (SEM), and infrared spectrometer (IR), respectively. The physical properties of the blend varied according to the sonication time, and when the ultrasound was irradiated for 10 seconds, the mechanical strength showed a marked increase. This was judged to be because the copolymer generated by high-intensity ultrasound improved the interfacial adhesion between the phases in the POE/PS blends. Through this, it is thought that only a short time irradiation of high-intensity ultrasound to the immiscible POE/PS blends will be very helpful in improving the mechanical properties.


폴리올레핀 엘라스토머(POE)와 폴리스티렌(PS)의 블렌드에 미치는 고강도 초음파의 영향을 조사하였다. 초음파 가진 장치가 부착된 용융 혼련기를 사용하여 POE/PS 블렌드를 준비하였고 레오미터, 만능시험기(UTM), 주사전자현미경(SEM), 적외선분광기(IR)을 이용하여 유변학적 거동, 기계적 물성, 미세구조 및 분광학적 분석을 각각 수행하였다. 블렌드의 물성은 고강도 초음파 가진 시간에 따라 변하였는데 초음파를 10초간 가진하였을 때, 기계적 강도의 뚜렷한 증가를 보였다. 이는 고강도 초음파로 인해 생성된 공중합체가 POE/PS 블렌드 내의 상들 사이의 계면 접착력을 향상시켰기 때문이라 판단되었다. 이를 통해 비혼화성(immiscible)인 POE/PS 블렌드에 고강도 초음파를 단지 짧은 시간 가진하는 것만으로도 기계적 물성을 향상시키는데 많은 도움이 될 것이라 사료된다.


Keywords: polyolefin elastomer, polystyrene, in-situ compatibilization, ultrasound-assisted, mechanical property.

  • 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

  • 2023; 47(6): 750-756

    Published online Nov 25, 2023

  • 10.7317/pk.2023.47.6.750
  • Received on Jul 20, 2023
  • Revised on Aug 30, 2023
  • Accepted on Aug 30, 2023

Correspondence to

  • Sangmook Lee
  • Division of Chemical Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Gyeonggi-do 448-701, Korea

  • E-mail: s_mlee@naver.com