✦ LIBER ✦

Internal stress of epoxy resin modified with acrylic core-shell particles prepared by seeded emulsion polymerization

✍ Scribed by Yoshinobu Nakamura; Haruo Tabata; Hideto Suzuki; Kazuo Iko; Masayoshi Okubo; Tsunetaka Matsumoto

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 753 KB
Volume: 32
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1986.070320509

No coin nor oath required. For personal study only.

✦ Synopsis

In order to reduce the internal stress in a cured epoxy resin, the submicron polymer particles were dispersed therein prior to curing. For this purpose, four kinds of poly(buty1 acrylate)/ poly(methy1 methacrylate) core-shell particles were prepared by seeded emulsion polymerization for methyl methacrylate with poly(buty1 acrylate) seed particles having different particle diameter, and subsequently were powdered by drying at room temperature. It was observed by SEM that poly(buty1 acrylate) particles as core were dispersed in the cured epoxy matrix. Poly(methy1 methacrylate) as shell seems to dissolve in the matrix. The internal stress of cured epoxy resin decreased with the modification of the particles and the tendency was enhanced with a decreasing in the particle diameter.

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