EPOXY RESIN ADHESIVE, CURED PRODUCT AND MOTOR
To provide an epoxy resin adhesive which is excellent in an adhesive force at high temperature heat and maintains the adhesive force even after a cold-heat cycle test required for a motor member.SOLUTION: An epoxy resin adhesive contains the following components (A) to (E). Component (A): epoxy resi...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide an epoxy resin adhesive which is excellent in an adhesive force at high temperature heat and maintains the adhesive force even after a cold-heat cycle test required for a motor member.SOLUTION: An epoxy resin adhesive contains the following components (A) to (E). Component (A): epoxy resin having two or more epoxy groups in one molecule. Component (B): curing agent for epoxy resin. Component (C): polystyrene particles having a glass transition temperature (DSC method) of 70°C or higher. Component (D): resin particles having a glass transition temperature (DSC method) of 0°C or lower (excluding component (C)). Component (E): spacer particles having an average particle size of 10-500 μm (excluding component (C) and component (D)).SELECTED DRAWING: None
【課題】本発明は、高温熱時接着力が優れ、かつ、モータ部材に要求される冷熱サイクル試験後も接着力を維持するエポキシ樹脂接着剤を提供することを目的とする。【解決手段】下記の(A)〜(E)成分を含むエポキシ樹脂接着剤。(A)成分:1分子中にエポキシ基を2以上有するエポキシ樹脂(B)成分:エポキシ樹脂用硬化剤(C)成分:ガラス転移温度(DSC法)が70℃以上であるポリスチレン粒子(D)成分:ガラス転移温度(DSC法)が0℃以下である樹脂粒子(但し、(C)成分を除く)(E)成分:平均粒径10〜500μmのスペーサー粒子(但し、(C)成分、(D)成分を除く)【選択図】 なし |
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