A kind of epoxy adhesive that can be disassembled quickly and its preparation and disassembly method
A technology of epoxy adhesive and epoxy diluent, which is applied in the direction of adhesive, epoxy glue, adhesive type, etc., can solve the problems of energy consumption, serious environmental pollution, difficult disassembly, etc., and achieve excellent bonding performance, The effect of simple preparation process and convenient use
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0050] Embodiment 1 contains the preparation of the mixture of furan-maleimide adduct
[0051] Dissolve 7.14g (0.02mol) of N,N'-dimethyltetraphenylbismaleimide in 20mL of tetrahydrofuran, then pour it into a 100mL three-necked flask, stir it magnetically, and blow nitrogen. Then slowly add 12.32g (0.08 mole) of furan glycidyl ether into the N,N'-dimethyltetraphenylbismaleimide-tetrahydrofuran solution, reflux at 66°C for 24 hours, and then distill off the tetrahydrofuran solvent under reduced pressure , That is, a mixture containing furan-maleimide adduct. During the preparation process, the infrared spectrum and 1 H NMR spectrum as Figure 2-3 shown.
Embodiment 2
[0052] The preparation of the carbon nanotube of embodiment 2 polyethyleneimine modification
[0053] a. Weigh 2 g of multi-walled carbon nanotubes (Nanjing Jicang Nano Model JCMT-99-11-50) and add 30 ml of concentrated sulfuric acid and 10 ml of concentrated nitric acid (volume ratio 3:1) into the mixed solution, magnetic stirring, stirring speed 600 revolutions per minute, heat up to 65°C, and keep warm for 90 minutes; then use an organic filter membrane with a pore size of 0.45 microns to filter; redisperse the filter cake in deionized water and wash, filter until it is neutral, and finally filter the cake Vacuum drying in an oven at 110°C for 6 hours, and the resulting product is carbon oxide nanotubes;
[0054] b. Weigh 1 g of oxidized carbon nanotubes, add 20 ml of N,N-dimethylformamide solvent, and then ultrasonically disperse at 80°C for 30 minutes, with an ultrasonic power of 100W, until the oxidized carbon nanotubes are completely dispersed in N,N - In dimethylfor...
Embodiment 3
[0055] Embodiment 3 The preparation method of the epoxy adhesive that can be disassembled quickly
[0056] a. Take a certain amount of amino-modified carbon nanotubes (or the polyethyleneimine-modified carbon nanotubes obtained in Example 2) and epoxy curing agent according to the formula, mix and defoam in the revolution and rotation of RN-500 Stir in the machine at a speed of 1000 rpm for 20 minutes, and then ultrasonically disperse for 30 minutes in an ultrasonic cleaner with a power of 100W and a temperature of 60°C to obtain the curing agent premix 1;
[0057] b. Weigh a certain amount of epoxy resin, epoxy diluent and the mixture containing furan-maleimide adduct according to the formula, slowly heat to 70°C, stir at high speed for 20 minutes, and then use a three-roll mill to coarsely Mix 3 times and finely mix 3 times; add heat-expandable microspheres, then stir for 10 minutes at a speed of 1000 rpm in the RN-500 revolution / rotation mixing defoamer produced by Japan ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More