Surface Modification of Cellulose Microcrystalline with Aluminate Coupling Agent and Its Effects on Flame Retardant and Mechanical Properties of Epoxy Resin

Minghang Wang, Quan Wu, Zhengyu Feng, Xiaoyu Gu, Hongfei Li, Jun Sun, Bin Fei, Sheng Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Cellulose microcrystalline (CMC), a linear polysaccharide with glucosidic bond, was successfully extracted from bamboo powder and modified by aluminate coupling agent (ACA) to prepare ACA-CMC. The chemical structure of as-designed ACA-CMC was characterized by scanning electron microscopy and Fourier transform infrared spectra. ACA-CMC, in association with ammonium polyphosphate (APP), was introduced into epoxy resin (EP) by casting process to obtain flame-resistant composites. The fire performance evaluation indicated that the presence of 10 phr APP and 5 phr ACA-CMC in EP achieved the maximal LOI value of 29.0 %, passed the UL-94 V-0 rating, and significantly decreased the peak heat release rate from 1055 kW · m−2 of neat EP to 294 kW · m−2. The introduction of ACA-CMC could also improve the mechanical properties of EP composites due to the strengthening effect of CMC and better interfacial compatibility after modification with ACA. Moreover, the relative mechanisms were also proposed.

Original languageEnglish
Pages (from-to)2344-2352
Number of pages9
JournalFibers and Polymers
Volume21
Issue number10
DOIs
Publication statusPublished - 1 Oct 2020

Keywords

  • Aluminate coupling agent
  • Cellulose microcrystalline
  • Epoxy resins
  • Fire performance

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Polymers and Plastics

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