Carbon nano tube in-situ modification polylactam composite material and preparation method and application thereof
A carbon nanotube and composite material technology, applied in the direction of additive processing, etc., can solve the problems of poor interfacial adhesion, unstable material properties, poor dispersion of carbon nanotubes as modifiers, etc., to achieve improved wear resistance and friction. The effect of reduced coefficient and simple and easy preparation method
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] Weigh 1 part of the original single-walled carbon nanotubes (SWCNTs), put it in a 200ml round-bottomed flask, add 30ml of mixed acid (concentrated sulfuric acid: concentrated nitric acid = 3:1), reflux at 70 ° C for 3 hours, and then vacuum filter, The obtained black solid was repeatedly washed and filtered with distilled water until the pH value of the filtrate was close to neutral, and the obtained product was dried in a vacuum drying oven at 80 °C for 24 hours to obtain acid-treated modified carbon nanotubes; The resulting carbon nanotubes were reacted with thionyl chloride and refluxed for 24 hours to convert the carboxyl groups on the surface of the carbon nanotubes into acid chlorides. Then rinse with tetrahydrofuran to remove thionyl chloride, and vacuum dry at room temperature for 24 h. Measure an appropriate amount of diamine and the treated carbon tube, conduct reflux reaction at 130° C. for 24 hours at a ratio of 2:1, and then cool to room temperature. The r...
Embodiment 2
[0036] Weigh 1 part of original double-walled carbon nanotubes (DWCNTs), put it in a 200ml round-bottomed flask, add 45ml of mixed acid (concentrated sulfuric acid: concentrated nitric acid = 3:1), reflux at 60 ° C for 4 hours, and then vacuum filter, The obtained black solid was repeatedly washed and filtered with distilled water until the pH value of the filtrate was close to neutral, and the obtained product was dried in a vacuum drying oven at 80 °C for 24 hours to obtain the treated modified carbon nanotubes; The carbon nanotubes were reacted with thionyl chloride and refluxed for 24 h, and the carboxyl groups on the surface of carbon nanotubes were converted into acid chlorides. Then rinse with tetrahydrofuran to remove thionyl chloride, and vacuum dry at room temperature for 24 h. An appropriate amount of diamine and the treated carbon tube were weighed, reacted under reflux at 135°C for 18 hours at a ratio of 2:1, and then cooled to room temperature. The reaction prod...
Embodiment 3
[0039] Weigh 1 part of original multi-walled carbon nanotubes (MWCNTs), put it in a 200ml round-bottomed flask, add 60ml of mixed acid (concentrated sulfuric acid: concentrated nitric acid = 3:1), reflux at 60 ° C for 6 hours, and then vacuum filter, The obtained black solid was washed and filtered with distilled water repeatedly until the pH value of the filtrate was close to neutral, and the obtained product was dried in a vacuum drying oven at 80 °C for 24 hours to obtain the treated modified multi-walled carbon nanotubes; The treated carbon nanotubes were reacted with thionyl chloride and refluxed for 24 hours to convert the carboxyl groups on the surface of the carbon nanotubes into acid chlorides. Then rinse with tetrahydrofuran to remove thionyl chloride, and vacuum dry at room temperature for 24 h. An appropriate amount of diamine and the treated carbon tube were weighed, reacted under reflux at 135°C for 18 hours at a ratio of 2:1, and then cooled to room temperature....
PUM
| Property | Measurement | Unit |
|---|---|---|
| Tensile strength | aaaaa | aaaaa |
| Impact strength | aaaaa | aaaaa |
| Tensile strength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More