A reworkable one-component epoxy structural adhesive and its preparation method and application
An epoxy structural adhesive, one-component technology, applied in the field of electronic adhesives, can solve the problem of difficult repair of one-component epoxy structural adhesives, and achieve the effects of reduced bond strength, high bond strength, and long operating time.
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[0033] The preparation method of the epoxy structural adhesive of embodiment 1~6
[0034] Add bisphenol A or F epoxy resin, polyurethane modified epoxy resin, polythiol curing agent, heat stabilizer, thixotropic agent and black pigment to the double planetary mixer (Taiyi (Shanghai) Industrial Co., Ltd. Co., Ltd., model TSJ-5), the circulating condensed water in the jacket of the kettle wall is opened first, and then the mechanical stirring and the high-speed dispersing plate are opened. By adjusting the temperature and flow rate of the condensed water, the temperature of the material in the kettle is controlled not to exceed 30 °C (the temperature and flow rate of the cooling water are adjusted according to the actual temperature in the kettle. Speed up the heat dissipation to ensure that the temperature of the material in the kettle does not exceed 30 °C); after mixing evenly, add the accelerator, continue to stir and disperse, and still control the temperature not to exce...
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