Preparation and properties of environmental-friendly coatings based on carboxymethyl cellulose nitrate ester & modified alkyd

Hongtao Duan, Ziqiang Shao*, Ming Zhao, Zhenwen Zhou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Amphipathic coating basic film-forming material carboxymethyl cellulose nitrate ester (CMCN) was synthesized and characterizations of CMCN with different ratio of functional groups were studied. Ratios of functional groups on each repeating units of CMCN have great importance in the decision of CMCN properties using as an amphipathic coating basic film-forming material and ratios of functional groups were the most concerned of the study. Ratios of functional groups on each repeating units of CMCN were measured by elemental analyzer and calculated. Series of experiments were conducted using different ratios of functional groups of CMCN. Thermal properties of CMCN were measured by FT-IR and TG. Densities of CMCN powders were measured. Aqueous coatings based on CMCN/alkyd (after chemical modified by coconut oil) were prepared and morphology & rheology of CMCN hydrophilic dispersions were measured using an Anton-Paar-Strasse 20A-8054 Graz analyzer. Contact angles between films based on CMCN and deionized water were recorded. Other properties of films were measured. CMCN with the etherification of carboxymethyl groups at 0.35-0.40, nitrate ester groups at 1.96-2.19 and hydroxyl groups at 0.46-0.64 per d-glucose was considered as the best film forming material.

Original languageEnglish
Pages (from-to)92-99
Number of pages8
JournalCarbohydrate Polymers
Volume137
DOIs
Publication statusPublished - 10 Feb 2016

Keywords

  • Alkyd (modified by coconut oil)
  • Carboxymethyl cellulose nitrate ester
  • Coatings
  • Water-borne suspension

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