JP2010132849A5 - - Google Patents

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次に、実施例１〜４で得られた硬化物の耐熱性を下記の方法で評価した。
すなわち、得られた厚さ２ｍｍの硬化物を５５ｍｍ×１０ｍｍの大きさに切り出して試験片とし、粘弾性スペクトロメータ（ＤＭＳ）（エスアイアイ・ナノテクノロジー（株）製「ＥＸＳＴＡＲ ＤＭＳ６１００」）を用いて、周波数１Ｈｚ、昇温速度２℃／分の条件で、２５℃〜２００℃の温度領域でｔａｎδ（損失正接）を測定し、縦軸をｔａｎδ、横軸を温度（℃）として動的粘弾性を示すグラフを得、そのピーク温度によって耐熱性を評価した。かかるピーク温度が高いほど、当該硬化物の耐熱性が高いことを意味する。 Next, the heat resistance of the cured products obtained in Examples 1 to 4 was evaluated by the following method.
That is, the obtained cured product having a thickness of 2 mm was cut into a size of 55 mm × 10 mm to obtain a test piece, and a viscoelastic spectrometer (DMS) (“EXSTAR DMS6100” manufactured by SII Nanotechnology Co., Ltd.) was used. , Tan δ (loss tangent) is measured in a temperature range of 25 ° C. to 200 ° C. under conditions of a frequency of 1 Hz and a temperature increase rate of 2 ° C./min, and the ordinate is tan δ and the horizontal axis is temperature (° C.). A graph showing viscoelasticity was obtained, and the heat resistance was evaluated by the peak temperature. The higher the peak temperature, the higher the heat resistance of the cured product.

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