<b>Structure and Properties of Phenolic Nanocomposite Prepared from Modified Novolac Synthesized by Phenol, Formaldehyde and Layered </b><b>Silicate Compound </b>

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  • <b>層状シリケート化合物を添加して合成したノボラックから作製した </b><b>フェノール樹脂ナノコンポジットの構造と物性 </b>
  • 層状シリケート化合物を添加して合成したノボラックから作製したフェノール樹脂ナノコンポジットの構造と物性
  • ソウジョウ シリケート カゴウブツ オ テンカ シテ ゴウセイ シタ ノボラック カラ サクセイ シタ フェノール ジュシ ナノコンポジット ノ コウゾウ ト ブッセイ

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With phenol, formaldehyde, and a catalyst, the layered silicate compound was added and novolac was synthesized. Montmorillonite and organized montmorillonite were used as a layered silicate compound. Next, the phenolic composites were produced using these novolac, and the dispersion state of the silicate compound under the composite was examined. As a result, the dispersion state of the layered silicate compound under phenolic composite was excellent in the composite produced from the novolac which used organized montmorillonite. Next, the structure and physical properties of phenolic composite which produced from molding compound prepared from conventional novolac and organized montmorillonite by the hot-roll kneading were examined. As a result, although the flexural strength and heat resistance of the phenolic composite produced from the synthesized modified novolac with organized montmorillonite were inferior to phenolic resin with no filler, the coefficient of linear expansion of the phenolic composite became small to about 60% of phenol resin with no filler. On the other hand, the flexural strength and heat resistance of phenolic composite which produced from molding compound by the hot-roll kneading were superior to those of phenolic resin with no filler. However, although the coefficient of linear expansion of the phenolic composite was smaller than phenol resin with no filler, the extent was only about 86% of phenol resin with no filler. Namely, the dimensional stability of the phenolic composite produced from the synthesized modified novolac with organized montmorillonite was superior to those of phenolic composite produced by the hot-roll kneading.

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