Interdigitated crystalline MMT-MCA in polyamide 6

Min Zhao; Deqi Yi; Giovanni Camino; Alberto Frache; Rongjie Yang

doi:10.1039/c6ra26084e

Interdigitated crystalline MMT-MCA in polyamide 6

Min Zhao
, Deqi Yi^*
, Giovanni Camino
, Alberto Frache
, Rongjie Yang

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

Polyamide 6 (PA6) was flame retarded by using interdigitated crystalline montmorillonite-melamine cyanurate (MMT-MCA). Its morphologies were assessed by using X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM), thermal stability by thermo-gravimetric analysis (TGA), fire retardancy by limiting oxygen index (LOI), vertical burning testing (UL-94), and cone calorimeter (CONE) tests and mechanical properties by stress strain tests. The results indicated that the interdigitated crystalline MMT-MCA was homogeneously nano-dispersed as MMT and MCA in PA6 due to a π-π stacking exfoliation mechanism. Compared with PA6/MCA and PA6/OMMT/MCA, PA6/MMT-MCA shows enhanced thermal stability and fire retardancy. With 8 wt% total loading of MMT-MCA, the sample of PA6/MMT-MCA reached UL-94 V-0 rating (3.2 mm). The MMT-MCA can also enhance the mechanical properties of PA6.

Original language	English
Pages (from-to)	861-869
Number of pages	9
Journal	RSC Advances
Volume	7
Issue number	2
DOIs	https://doi.org/10.1039/c6ra26084e
Publication status	Published - 2017

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10.1039/c6ra26084e

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@article{ddf6464b3e714094bda272cd5aa9bbb9,

title = "Interdigitated crystalline MMT-MCA in polyamide 6",

abstract = "Polyamide 6 (PA6) was flame retarded by using interdigitated crystalline montmorillonite-melamine cyanurate (MMT-MCA). Its morphologies were assessed by using X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM), thermal stability by thermo-gravimetric analysis (TGA), fire retardancy by limiting oxygen index (LOI), vertical burning testing (UL-94), and cone calorimeter (CONE) tests and mechanical properties by stress strain tests. The results indicated that the interdigitated crystalline MMT-MCA was homogeneously nano-dispersed as MMT and MCA in PA6 due to a π-π stacking exfoliation mechanism. Compared with PA6/MCA and PA6/OMMT/MCA, PA6/MMT-MCA shows enhanced thermal stability and fire retardancy. With 8 wt\% total loading of MMT-MCA, the sample of PA6/MMT-MCA reached UL-94 V-0 rating (3.2 mm). The MMT-MCA can also enhance the mechanical properties of PA6.",

author = "Min Zhao and Deqi Yi and Giovanni Camino and Alberto Frache and Rongjie Yang",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2017.",

year = "2017",

doi = "10.1039/c6ra26084e",

language = "English",

volume = "7",

pages = "861--869",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "2",

}

TY - JOUR

T1 - Interdigitated crystalline MMT-MCA in polyamide 6

AU - Zhao, Min

AU - Yi, Deqi

AU - Camino, Giovanni

AU - Frache, Alberto

AU - Yang, Rongjie

PY - 2017

Y1 - 2017

N2 - Polyamide 6 (PA6) was flame retarded by using interdigitated crystalline montmorillonite-melamine cyanurate (MMT-MCA). Its morphologies were assessed by using X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM), thermal stability by thermo-gravimetric analysis (TGA), fire retardancy by limiting oxygen index (LOI), vertical burning testing (UL-94), and cone calorimeter (CONE) tests and mechanical properties by stress strain tests. The results indicated that the interdigitated crystalline MMT-MCA was homogeneously nano-dispersed as MMT and MCA in PA6 due to a π-π stacking exfoliation mechanism. Compared with PA6/MCA and PA6/OMMT/MCA, PA6/MMT-MCA shows enhanced thermal stability and fire retardancy. With 8 wt% total loading of MMT-MCA, the sample of PA6/MMT-MCA reached UL-94 V-0 rating (3.2 mm). The MMT-MCA can also enhance the mechanical properties of PA6.

AB - Polyamide 6 (PA6) was flame retarded by using interdigitated crystalline montmorillonite-melamine cyanurate (MMT-MCA). Its morphologies were assessed by using X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM), thermal stability by thermo-gravimetric analysis (TGA), fire retardancy by limiting oxygen index (LOI), vertical burning testing (UL-94), and cone calorimeter (CONE) tests and mechanical properties by stress strain tests. The results indicated that the interdigitated crystalline MMT-MCA was homogeneously nano-dispersed as MMT and MCA in PA6 due to a π-π stacking exfoliation mechanism. Compared with PA6/MCA and PA6/OMMT/MCA, PA6/MMT-MCA shows enhanced thermal stability and fire retardancy. With 8 wt% total loading of MMT-MCA, the sample of PA6/MMT-MCA reached UL-94 V-0 rating (3.2 mm). The MMT-MCA can also enhance the mechanical properties of PA6.

UR - https://www.scopus.com/pages/publications/85008950124

U2 - 10.1039/c6ra26084e

DO - 10.1039/c6ra26084e

M3 - Article

AN - SCOPUS:85008950124

SN - 2046-2069

VL - 7

SP - 861

EP - 869

JO - RSC Advances

JF - RSC Advances

IS - 2

ER -

Interdigitated crystalline MMT-MCA in polyamide 6

Abstract

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