Open Access

ARTICLE

The Effects of DOPO-g-ITA Modified Microcrystalline Cellulose on the Properites of Composite Phenolic Foams

Yufeng Ma¹, Xuanang Gong¹, Puyou Jia^2,*

1 Nanjing Forestry University, College of Materials Science and Engineering, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing, 210037, China
2 Institute of Chemical Industry of Forestry Products, CAF, Nanjing, 210042, China

* Corresponding Author: Puyou Jia. Email:

Journal of Renewable Materials 2020, 8(1), 45-55. https://doi.org/10.32604/jrm.2020.08621

Received 16 September 2019; Accepted 31 October 2019; Issue published 01 January 2020

Abstract

In order to improve the comprehensive performance of phenolic foam, 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) was grafted with itaconic acid (ITA) (DOPO-g-ITA) to modify microcrystalline cellulose (MCC). DOPO-g-ITA modified MCC (DIMMCC) was used to prepare composite phenolic foam (DCPF). The structures of DIMMCC were verified by Fourier transform infrared spectroscopy (FT-IR). The microstructure and crystalline property were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD) respectively. Compared with MCC, the crystallinity of DIMMCC was dramatically decreased, but the diffraction peak positions were unchanged. Thermal stability was decreased, and T_i decreased by 45.0°C. The residual carbon (600°C) was increased by 22.34%. With the dosage of DIMMCC/PR increased, compared with PF, the mechanical properties and flame retardancy of DCPF were increased. Especially, the dosage of DIMMCC/PR was 10%, the comprehensive properties of DCPF was better than others.

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