Article
  • Effects of Trimethyl Hexane Diol and 1,6-Hexane Diol as a Chain Extender on the Physical Properties of Hydroxy Terminated Polybutadiene Urethane Elastomers
  • Hong MP, Choi YB, Rho MK, Moon TJ
  • Hydroxy Terminated Polybutadiene우레탄 탄성체의 물성에 미치는 영향
  • 홈명표, 최영보, 노만균, 문탁진
Abstract
The mechanical properties of urethane elastomer prepared from hydroxy terminated polybutadiene(HTPB). trimethylhexanediol(TMHD), and hexamethylendiisocyanate(HDI) were studied. Ab the concentration of chain extender was increased, the value of tensile strength, modulus, and hardness were enhanced due to the increase in the number of polar urethane groups, while the rupture strain was decreased. The enhanced mechanical properties for samples prepared from 1,6-HD were found to be stemmed from the crystallinity in the elastomer and from the hydrogen bond which acts as a hard segment. The crystallinity was confirmed by X-ray diffraction and DSC. The molecular weight between crosslinks of elastomer were also investigated from the Mooney-Rivlin equation. The phantom theory gave better agreement than affin''s with the experimental data.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1987; 11(1): 49-57

    Published online Feb 25, 1987