Improving electrical conductivity of poly methyl methacrylate by utilization of carbon nanotube and CO2laser
| Autor: | Sina Sadighikia, Amir Navidfar, Ayub Karimzad Ghavidel, Mohammadreza Shabgard, Taher Azdast |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Conductive polymer
Nanotube Nanocomposite Materials science Polymers and Plastics General Chemistry Carbon nanotube Poly(methyl methacrylate) Surfaces Coatings and Films law.invention Surface conductivity Electrical resistivity and conductivity law visual_art Materials Chemistry visual_art.visual_art_medium Composite material Electrical conductor |
| Zdroj: | Journal of Applied Polymer Science. 132 |
| ISSN: | 0021-8995 |
| DOI: | 10.1002/app.42671 |
| Popis: | In this work, the electrical surface conductivity enhancement of injection-molded multiwalled carbon nanotube (MWCNT)/poly(methyl methacrylate) (PMMA) nanocomposite by using CO2 laser processing was studied. Variable input factors are considered as MWCNT concentration (in three levels 0.5, 1, and 1.5 wt %), the laser feed angle with the flow direction (in five levels 08 ,3 08 ,4 58 ,7 58, and 908), and the cavity machining method that were produced by electrodischarge machining and computer numerical control milling with finishing process. The studies show that the irradiation of laser and utilization of covering gas could enhance the CNT-CNT contacts and the surface electrical conductivity. The morphology of laser-irradiated surface by using scanning electron microscope certified that the conductive network generated from CNT-CNT contacts can transfer the electrical current. The findings clearly show that the laser feed angle with the flow direction influenced the electrical conductivity. The maximum conductiv- ity ( 5.310 3 10 24 S) was observed at 758. V C 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42671. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text