Chinese Journal of Polymer Science

, Volume 34, Issue 11, pp 1301–1310

Reinforcement of hydroxypropylcellulose films by cellulose nanocrystals in the presence of surfactants

Papers

DOI: 10.1007/s10118-016-1844-y

Cite this article as:
Rehman, N., de Miranda, M.I.G., Rosa, S.M.L. et al. Chin J Polym Sci (2016) 34: 1301. doi:10.1007/s10118-016-1844-y
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Abstract

Hydroxypropylcellulose (HPC) films were prepared by casting with cellulose nanocrystals in the presence of anionic surfactant sodium dodecylsulphate (SDS) and cationic surfactant hexadecyltrimethyl ammonium bromide (CTAB). The cellulose nanocrystals were isolated from maize straw, a biomass source produced in huge quantities as an agrowaste in Brazil. These bionanocomposite films had good transparency and their surface hydrophilic character was evidenced by static contact angle measurements. Thermogravimetry (TGA) measurement revealed that nanocrystals and surfactants changed the thermal stability of the HPC films. Dynamic mechanical analysis (DMA) showed that the tensile storage and loss moduli of the HPC films increased by increasing the contents of cellulose nanocrystals and surfactants, especially in the case of CTAB. This good reinforcing effect of HPC matrix can be explained as due to electrostatic attractive interactions brought about by the presence of CTAB and the nanocrystals.

Keywords

Hydroxypropylcellulose Cellulose nanocrystals Bionanocomposites Maize straw Micellization 

Copyright information

© Chinese Chemical Society, Institute of Chemistry, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Instituto de QuímicaUniversidade Federal do Rio Grande do SulPorto Alegre/RSBrazil
  2. 2.Department of ChemistryShaheed Benazir Bhutto UniversitySheringal Dir (Upper) KPKPakistan
  3. 3.Instituto de Ciências Exatas e TecnológicasUniversidade FEEVALE, Campus IINovo Hamburgo/RSBrazil

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