Epoxy resin-organic bentonite-metal oxide composite material and preparation method thereof
A technology of epoxy resin and composite materials, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve problems such as passive film damage, achieve mild preparation conditions, reduce costs, and have good repeatability
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Embodiment 1
[0024] In this embodiment, an epoxy resin-organic bentonite-metal oxide composite material is formed by dispersing and compounding organic bentonite and metal oxide nanoparticles in an epoxy resin matrix material, specifically:
[0025] (1) The matrix material components include epoxy resin, curing agent and silane coupling agent, among which the epoxy resin material is bisphenol A type GCC135 epoxy resin, that is, ethylene glycol dioxide propylene ether, the appearance of epoxy resin It is a transparent liquid without mechanical impurities, the epoxy value is 0.6 eq / 100g, the viscosity is 1000 mPas, and the density is 1.17 g / cm 3 Wherein curing agent is modified isophorone-low viscosity liquid curing agent, the appearance of curing agent is colorless to light yellow liquid, amine value is 600mg KOH / g, viscosity is 80 mPas, epoxy resin and curing The agent is mixed in a ratio of 10:3 by weight; the alkane coupling agent is 3-aminopropyltriethoxysilane, namely KH550;
[0026] ...
Embodiment 2
[0044] This embodiment is basically the same as Embodiment 1, especially in that:
[0045] In this embodiment, the material ratio of the epoxy resin-organic bentonite-metal oxide composite material is as follows:
[0046] Epoxy resin, curing agent, 2.5 phr organobentonite, 1.25 phr ZnO nanoparticles and 1.25 phrZrO 2 nanoparticles.
[0047] The preparation method of the present embodiment epoxy resin-organic bentonite-metal oxide composite material comprises the following steps:
[0048] The first step: same as embodiment one;
[0049] Second step: same as embodiment one;
[0050] The third part: same as embodiment one;
[0051] The fourth part: same as embodiment one;
[0052] The fifth step: same as embodiment one;
[0053] Step 6: Add organic bentonite with a concentration of 2.5phr to the low-viscosity epoxy resin prepared in step 5, and stir until all the organic bentonite is immersed in the epoxy resin matrix material to form epoxy resin-organic bentonite Mixture;...
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