Epoxy resin composition, use thereof, and filler for epoxy resin composition
A technology of epoxy resin and inorganic filler, applied in the direction of epoxy resin glue, dyed organic silicon compound treatment, adhesive type, etc., can solve research and other problems, and achieve the effect of excellent formability and excellent combustion resistance
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Embodiment
[0062] Hereinafter, although an Example and a comparative example demonstrate this invention more concretely, this invention is not limited to these Examples.
[0063] The kneading procedure at the time of preparing an epoxy resin composition was evaluated by the following method.
[0064] (1) mixing
[0065] Knead a specific amount of epoxy resin, phenol resin as a hardener, magnesium oxide powder and silica powder as a filler at a specific temperature using a twin-shaft kneader. The kneaded product discharged from the discharge port was evaluated. As evaluation criteria, ○: kneading was possible without any problem, △: kneading was possible but the kneaded product was not uniform, ×: kneading was not possible.
[0066] In addition, the epoxy resin composition was evaluated by the following method. Moreover, the epoxy resin composition powder was formed into an ingot, and this ingot was used as a sample and evaluated. The ingot was molded by hand pressing at a pressure of...
Embodiment 2
[0115] As shown in Table 1, an epoxy resin composition was obtained in the same manner as in Comparative Example 5, using Hardener 2 (biphenyl aralkyl type phenol resin) instead of Hardener 1 (phenol formaldehyde type phenol resin) as a hardener. of mixes. In addition, its evaluation is performed.
Embodiment 3
[0117] As shown in Table 1, magnesium oxide powder 2 whose surface has been treated with N-2-aminoethyl-3-aminopropyltrimethoxysilane is used instead of magnesium oxide powder 1, and epoxy resin is obtained in the same manner as in Example 2. A kneaded product of a resin composition. In addition, its evaluation is performed.
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Abstract
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