Ultrasonic study of gelation and vitrification in curing process of allyl-oligomer

Hirotaka Okabe, Wataru Takashima, Seiji Taki, Kazumi Matsushige

Research output: Contribution to journalArticle

Abstract

An automatic ultrasonic velocity measuring system was utilized to investigate an isothermal curing process of allyl-ester, a new thermosetting resin composed of an allyl-oligomer and a curing agent. The logarithmic curing time vs sound velocity curves showed apparent bends at curing temperatures below 140°C, while a monotonous relation above 150°C.The analysis based on a reaction rate equation suggested that such ultrasonic behavior resulted from the differentmechanism of gelation and/or vitrification, which became dominant depending on the curing temperature.

Original languageEnglish
Pages (from-to)31-33
Number of pages3
JournalJapanese Journal of Applied Physics
Volume30
DOIs
Publication statusPublished - Jan 1 1991
Externally publishedYes

Fingerprint

vitrification
Vitrification
gelation
Gelation
curing
oligomers
Oligomers
Curing
ultrasonics
Ultrasonics
thermosetting resins
Ultrasonic velocity
Thermosets
Acoustic wave velocity
acoustic velocity
Reaction rates
esters
Esters
reaction kinetics
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Ultrasonic study of gelation and vitrification in curing process of allyl-oligomer. / Okabe, Hirotaka; Takashima, Wataru; Taki, Seiji; Matsushige, Kazumi.

In: Japanese Journal of Applied Physics, Vol. 30, 01.01.1991, p. 31-33.

Research output: Contribution to journalArticle

Okabe, Hirotaka ; Takashima, Wataru ; Taki, Seiji ; Matsushige, Kazumi. / Ultrasonic study of gelation and vitrification in curing process of allyl-oligomer. In: Japanese Journal of Applied Physics. 1991 ; Vol. 30. pp. 31-33.
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