High-performance medium-temperature cured single-component epoxy structural adhesive and preparation method thereof
An epoxy structural adhesive, a single-component technology, applied in the direction of epoxy resin glue, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of insufficient toughness and short storage time, and achieve Excellent toughness, high bonding strength, and the effect of improving the application range
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Embodiment 1
[0035] The components and component weights of structural adhesives are shown in the table below:
[0036] component name Parts by mass / Kg NPEL-128 80 NPER-133L 25 102C-5 20 MX-153 33 XA-297 2 DDA5 12 U52M 4 PN-23 1.5 Nano calcium carbonate 20 H18 7 KH-560 4
Embodiment 2
[0038] The components and component weights of structural adhesives are shown in the table below:
[0039] component name Parts by mass / Kg NPES-901 55 622 25 NPER-133L 25 102C-5 20 MX-153 33 XA-290 2 DDA5 12 U52M 4 PN-23 1.5 Nano calcium carbonate 20 H18 7 KH-560 4
Embodiment 3
[0041] The components and component weights of structural adhesives are shown in the table below:
[0042] component name Parts by mass / Kg E44 80 NPER-133L 25 102C-5 20 MX-153 33 CTBN 1.5 DDA5 12 U52M 4 PN-23 1.5 Nano calcium carbonate 20 H18 7 KH-560 4
[0043] Each structural glue of embodiment 1-3 is prepared according to the following method:
[0044] 1) Take epoxy resin, diluent, toughening agent, filler and thixotropic reinforcing agent in proportion, add it to a planetary mixer, and stir at a high degree until it is completely dispersed and uniform;
[0045] 2) Vacuum dehydration at 110°C for 10 minutes, then cool to room temperature, take latent curing agent, accelerator, and coupling agent in proportion, stir at 30°C until completely dispersed, and vacuumize for 30 minutes to obtain Structural glue.
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