Preparation and Characterization of Nano Melamine Cyanurate and Its Application in Phenolic Foam

doi:10.11901/1005.3093.2013.857

Chinese Journal of Materials Research

2014, Vol. 28

Issue (6): 401-406 DOI: 10.11901/1005.3093.2013.857

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Preparation and Characterization of Nano Melamine Cyanurate and Its Application in Phenolic Foam

Zhengzhou WANG^1,^2,^**(

),Shaohong XU²,Lifei HU²

1. Key Laboratory Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 200092
2. School of Materials Science and Engineering, Tongji University, Shanghai 200092

Cite this article:

Zhengzhou WANG,Shaohong XU,Lifei HU. Preparation and Characterization of Nano Melamine Cyanurate and Its Application in Phenolic Foam. Chinese Journal of Materials Research, 2014, 28(6): 401-406.

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Abstract

Nano melamine cyanurate (NMC) was synthesized by a solvothermal method, and characterized by FTIR, XRD and SEM. The effect of solvents, surfactants, reaction-temperature and -time on the particle size of the product were investigated. NMC can be only obtained by using distilled water as a solvent, and of which the average particle size (APZ) is 106 nm. When sodium dodecyl sulfate and cetyl trimethyl ammonium bromide were used as surfactants, the APZ of the product is almost the same (about 100 nm). While nonylphenol polyoxyethylene ether was used, the APZ reaches up to 3.1 μm. The suitable reaction temperature and time for the preparation of NMC are 150℃ and 1-3 h respectively. Moreover, as toughening agent, the effect of both NMC and micro MC (MMC) on the performance of the toughened phenolic foam was investigated, and it was found that NMC is more effective rather than MMC in improving limiting oxygen index and flexural strength of the toughened foam.

Key words: organic polymer materials material synthesis nano melamine phosphate solvothermal method phenolic foam

Received: 13 November 2013

Fund: *Supported by the National Natural Science Foundation Nos. 21174106 & U1205114/L11.

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https://www.cjmr.org/EN/10.11901/1005.3093.2013.857 OR https://www.cjmr.org/EN/Y2014/V28/I6/401

Table 1 Formulations of PF and toughened PF foams

Fig.1 Structure of melamine cyanurate

Fig.2 FTIR of cyanuric acid, melamine and NMC

Fig.3 XRD of MMC and NMC

Fig.4 SEM of NMC

Fig.5 Particle size distribution of the product synthesized in different solvents

Fig.6 Particle size distribution of the product synthesized using different surfactants, (A) CTAB; (B) SDS; (C) NP

Fig.7 Particle size distribution of the product synthesized at different temperatures

Fig.8 Particle size distribution of the product synthesized at different hours, (A) 1 h; (B) 3 h; (C) 5 h

Table 2 Flame retardant and mechanical properties of PF and toughened PF foams

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