A method for improving the mechanical properties of epoxy resin adhesives by activated calcium carbonate whiskers
A technology of activated calcium carbonate and calcium carbonate whiskers, used in epoxy resin glue, adhesives, adhesive types and other directions, can solve problems such as hard texture, and achieve the effects of low cost, high adhesion, and improved compressive strength
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Embodiment 1
[0039] A kind of method that activated calcium carbonate whisker improves the mechanical property of epoxy resin adhesive, comprises the following steps:
[0040] S1, the surface modification of calcium carbonate whisker: after the calcium carbonate whisker is preheated to 25 ℃, keep warm for 10min, then add the aluminate coupling agent of 1% calcium carbonate whisker quality (to be modified CaCO 3 Whisker dry base mass calculation), at a temperature of 25 ° C, a stirring rate of 500rpm to carry out surface modification 60min, made active calcium carbonate whiskers;
[0041] S2, prepare epoxy resin adhesive composite material: add epoxy resin E-51 in the active calcium carbonate whisker that step S1 makes, the mass ratio of described active calcium carbonate whisker and epoxy resin E-51 is 4: 100, in a three-roller grinder with a rotating speed of 30r / min, fully mix and evenly obtain the first product of epoxy resin composite material, and then add polyamide resin with half th...
Embodiment 2
[0044] A kind of method that activated calcium carbonate whisker improves the mechanical property of epoxy resin adhesive, comprises the following steps:
[0045] S1, the surface modification of calcium carbonate whisker: After calcium carbonate whisker is preheated to 60 ℃, keep warm for 10min, then add the aluminate coupling agent of 2.5% calcium carbonate whisker quality (to be modified CaCO 3 Whisker dry basis mass calculation), at a temperature of 60 ° C, a stirring rate of 700rpm to carry out surface modification 40min, made active calcium carbonate whiskers;
[0046] S2, prepare epoxy resin adhesive composite material: add epoxy resin E-51 in the active calcium carbonate whisker that step S1 makes, the mass ratio of described active calcium carbonate whisker and epoxy resin E-51 is 4: 100, in a three-roller grinder with a rotating speed of 79r / min, fully mix and evenly obtain the first product of epoxy resin composite material, and then add polyamide resin with half the...
Embodiment 3
[0049] A kind of method that activated calcium carbonate whisker improves the mechanical property of epoxy resin adhesive, comprises the following steps:
[0050] S1, the surface modification of calcium carbonate whisker: after calcium carbonate whisker is preheated to 90 ℃, keep warm for 10min, then add the aluminate coupling agent of 3.5% calcium carbonate whisker quality (to be modified CaCO 3 Whisker dry base mass calculation), at a temperature of 90 ° C, a stirring rate of 600rpm to carry out surface modification 25min, made active calcium carbonate whiskers;
[0051] S2, prepare epoxy resin adhesive composite material: add epoxy resin E-51 in the active calcium carbonate whisker that step S1 makes, the mass ratio of described active calcium carbonate whisker and epoxy resin E-51 is 4: 100, in a three-roller grinder with a rotating speed of 10r / min, fully mix and evenly obtain the first product of epoxy resin composite material, and then add polyamide resin with half the ...
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Abstract
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