• Study on the Effect of Cardanol-based Polyol Structure on the Properties of Rigid Polyurethane Foam
  • Juwon Oh and Sangbum Kim

  • Department of Chemical Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Korea

  • 카다놀 기반 폴리올의 구조가 경질 폴리우레탄 폼의 물성에 미치는 영향 연구
  • 오주원 · 김상범

  • 경기대학교 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

In this study, cardanol-based Mannich type polyol and Novolac type polyol were used as alternatives to petroleum-based polyol to compare and examine the effects of polyol structures on the properties of rigid polyurethane foam. As a result, it was confirmed that the compressive strength and thermal insulation performance of rigid polyurethane foam synthesized with 20wt% Mannich type polyol were superior to those synthesized with Novolac type polyol or petroleum-based polyol. This is because the presence of tertiary nitrogen in the Mannich type polyol structure promotes the urethane reaction, enhancing the reaction rate and reducing cell size, while the presence of aromatic structures increases the hard segment content.


본 연구에서는 석유계 폴리올을 대체하기 위해 카다놀 기반의 Mannich type 폴리올과 Novolac type 폴리올을 사용하여 폴리올의 구조가 경질 폴리우레탄 폼의 물성에 미치는 영향을 비교 고찰하였다. 그 결과, Mannich type 폴리올을 20중량% 혼합한 경질 폴리우레탄 폼의 압축강도와 단열성능이 Novolac type 폴리올이나 석유계 폴리올을 사용하여 합성한 경질 폴리우레탄 폼에 비해 우수함을 확인하였다. 이는 Mannich type 폴리올 구조 내 3차 질소의 존재가 우레탄 반응을 촉진하여 반응속도 향상 및 기공 크기 감소를 야기하며, 방향족 구조의 존재로 하드 세그먼트가 증가했기 때문이다.


Keywords: rigid polyurethane foam, cardanol based polyol, eco-friendly, mannich type polyol, novolac type polyol.

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

This Article

  • 2025; 49(3): 342-349

    Published online May 25, 2025

  • 10.7317/pk.2025.49.3.342
  • Received on Dec 10, 2024
  • Revised on Jan 2, 2025
  • Accepted on Jan 2, 2025

Correspondence to

  • Sangbum Kim
  • Department of Chemical Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Korea

  • E-mail: ksb@kyonggi.ac.kr