Influence of silane concentration on the silanization of multiwall carbon nanotubes |
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| Affiliation: | 1. Centro de Investigación Científica de Yucatán A.C., Unidad de Materiales, Calle 43 No. 130, Col. Chuburna de Hidalgo. C.P 97200, Mérida, Yucatán, Mexico;2. Departamento de Química-Física de Superficies y Procesos, Instituto de Cerámica y Vidrio (CSIC), Kelsen 5, 28049 Madrid, Spain;1. Instituto de Polímeros e Compósitos/I3N, Universidade do Minho, 4800-058 Guimarães, Portugal;2. Centro de Química, Universidade do Minho, 4710-057 Braga, Portugal;3. Departamento de Informática, Centro ALGORITMI, Universidade do Minho, 4710-057 Braga, Portugal;4. Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain;1. Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil;2. Control and Developmental Center of Biomaterials (CDC-Bio), Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil;1. Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, Pozuelo de Alarcón, Madrid 28223, Spain;2. Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Madrid 28040, Spain;3. Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain;4. Departamento de Biotecnología, Facultad de Ciencias, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid 28223, Spain;1. Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea;2. Research & Development Division, Hyundai Motor Company, 150, Hyundaiyeonguso-ro, Namyang-eup, Hwaseong-si, Gyeonggi-do, 18280, Republic of Korea;3. Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk, 55324, Republic of Korea |
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| Abstract: | The relationship between the concentration of silane, the degree of surface coverage and the functionalization of multiwall carbon nanotubes (MWCNTs) upon silanization is experimentally investigated. MWCNT silanization is conducted using a γ-methacryloxypropyltrimethoxy silane varying its concentration with respect to the weight of the MWCNTs from 3.5% to 1000% (10×). Physicochemical characterization of the MWCNTs points out that the optimum range of silane concentration required to generate adequate surface coverage on the MWCNTs is between one and two times the weight of the MWCNTs. This optimum range of silane concentration is further confirmed by mechanical testing of silanized MWCNT/vinyl ester polymer composites. |
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