Vacuum infusion epoxy resin system and preparation method and application thereof
An epoxy resin, vacuum infusion technology, applied in the direction of final product manufacturing, sustainable manufacturing/processing, wind power generation, etc., can solve the problems of composite material defects, short operation time, fast curing speed of epoxy resin, etc., to achieve low price , to achieve the effect of reuse and reduce the cost of three waste treatment
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Embodiment 1
[0040] A vacuum infusion epoxy resin system for wind power blades, which includes A component and B component, and the A component includes by weight: 70% of bisphenol A epoxy resin; epoxy diluent I (multiple Epoxy tar) 30%, epoxy thinner II 0%,;
[0041] The B component comprises by weight percentage: polyetheramine curing agent 50%, isophorone diamine 50%;
[0042] The A component and the B component are mixed in a ratio of 100:25 by weight.
[0043] Wherein, the preparation method of the system is:
[0044] Step 1, prepare A component:
[0045] Put bisphenol A epoxy resin, epoxy diluent I and epoxy diluent II into the reaction kettle; heat the reaction kettle to 60 ° C and stop after stirring at 100 rpm for 30 minutes; stop heating and cool to normal temperature to obtain the result. said A component;
[0046] Step 2, prepare B component:
[0047] Add polyetheramine curing agent and isophorone diamine in the reaction kettle, and stop after stirring at 100rpm for 30 min...
Embodiment 2~7 and comparative example 1
[0050] The preparation methods of Examples 2 to 7 and Comparative Example 1 are the same as those of Example 1, and will not be repeated here. The difference lies in the proportioning composition. The proportioning composition of the vacuum infusion epoxy resin system of each embodiment is shown in the following table:
[0051]
[0052]
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