Epoxy resin sealing material and method for preparing same
A technology of epoxy resin and potting material, which is applied in chemical instruments and methods, other chemical processes, etc., to achieve the effect of overcoming high temperature resistance and improving heat resistance and hardness
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Embodiment 1
[0031] For the preparation of component A of epoxy resin potting compound, take the following components (both in kilograms):
[0032] Epoxy resin E-51 100
[0033] Phenyl glycidyl ether 12
[0034] Fumed silica 2
[0035] Modified ultrafine barium sulfate 25
[0036] Microsilica 20
[0037] Titanium dioxide 20
[0038] Methicone 2
[0039] Measure and add into the mixing container according to the order of the above formula, stir evenly, and grind twice on the three-roller mill.
[0040] Component A of epoxy resin potting compound: use m-xylylenediamine curing agent.
[0041] The use ratio of A and B components is A:B=100:12; first mix evenly, then potting, and curing at room temperature.
[0042] Effect: The cured product can withstand 225 kg of pressure within 350 seconds at 165 ° C, and the reject rate is less than 5%.
Embodiment 2
[0044] For the preparation of component A of epoxy resin potting compound, take the following components (both in kilograms):
[0045] Epoxy resin E-51 50
[0046] m-xylylenediamine epoxy resin 50
[0047] Phenyl glycidyl ether 30
[0048] Modified ultrafine barium sulfate 25
[0049] Microsilica 40
[0050] Titanium dioxide 40
[0051] Methicone 1
[0052] Measure and add into the mixing container according to the order of the above formula, stir evenly, and grind twice on the three-roller mill.
[0053] Component A of epoxy resin potting compound: use m-xylylenediamine curing agent.
[0054] The use ratio of A and B components is A:B=100:13; first mix evenly, then potting, first curing at room temperature, and then strengthening curing at 100°C for 1 hour.
[0055] Effect: The cured product can withstand 225 kg of pressure within 350 seconds at 165 ° C, and the reject rate is less than 5%.
Embodiment 3
[0057] For the preparation of component A of epoxy resin potting compound, take the following components (both in kilograms):
[0058] m-xylylenediamine epoxy resin 100
[0059] Phenyl glycidyl ether 50
[0060] Fumed silica 3
[0061] Modified ultrafine barium sulfate 50
[0062] Silica powder 50
[0063] Titanium dioxide 60
[0064] Methicone 3
[0065] Measure and add into the mixing container according to the order of the above formula, stir evenly, and grind twice on the three-roller mill.
[0066] Component A of epoxy resin potting compound: use m-xylylenediamine curing agent.
[0067]The use ratio of A and B components is A:B=100:13; first mix evenly, then potting, first curing at room temperature, and then strengthening curing at 100°C for 1 hour.
[0068] Effect: The cured product can withstand 230 kg of pressure within 360 seconds at 170 ° C, and the reject rate is less than 5%.
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