Effects of α-ZrP on Crystallinity and Flame-Retardant Behaviors of PA6/MCA Composites. (3rd January 2017)

• Record Type: Journal Article
• Authors: Xiao, Yuanfang; Xu, Jiayou; Huang, Siwen; Deng, Haiming
• Other Names: Wang De-Yi Academic Editor.
• Is Part Of: International journal of polymer science. Volume 2017(2017)
• Publication Date: 2017-01-03
• Subjects: Polymers -- Periodicals; Polymers; Periodicals; 547.7
• DOI: 10.1155/2017/6034741
• Languages: English
• ISSNs: 1687-9422

Abstract

Abstract : Novel flame-retardant Polyamide6/Melamine cyanurate-alpha-zirconium phosphate (PA6/MCA- α -ZrP) composites were prepared via the incorporation of the modified MCA (MCA- α -ZrP) into PA6. MCA- α -ZrP were synthesized through the self-assembly of α -ZrP, Melamine (ME), and cyanuric acid (CA) molecules. The results of differential scanning calorimetry (DSC) and X-ray diffraction (XRD) showed that the incorporation of enough α -ZrP (30 wt% MCA) caused the increased crystallinity of PA6 and tended to form γ phase. The thermogravimetric analysis (TGA) and heat distortion temperature (HDT) test illustrated that the α -ZrP could increase the residue and HDT values of PA6/MCA and showed a synergistic effect with MCA. The combination of MCA and α -ZrP caused the enhancement of vertical burning test (UL-94) rating. Cone calorimeter test (CCT) gave clear evidences that PA6/MCA-10 α -ZrP composites with low heat release rate (HRR), low total heat release (THR), and high amounts of char residues after combustion compared with PA6/MCA and PA6/MCA-30 α -ZrP. What is more, excellent mechanical properties were kept even though MCA and α -ZrP were dispersed not as good as expected.