Effects of halloysite nanotubes and 2-carboxyethyl phenylphosphonic acid on flame retardant and mechanical properties of epoxy resin

LV Jiashuainan; DI Kaiying; CAI Penglin; CHEN Xiaoting

doi:10.13801/j.cnki.fhclxb.20200603.003

Volume 38 Issue 1

Jan. 2021

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LV Jiashuainan, DI Kaiying, CAI Penglin, et al. Effects of halloysite nanotubes and 2-carboxyethyl phenylphosphonic acid on flame retardant and mechanical properties of epoxy resin[J]. Acta Materiae Compositae Sinica, 2021, 38(1): 120-128. doi: 10.13801/j.cnki.fhclxb.20200603.003

Citation:

LV Jiashuainan, DI Kaiying, CAI Penglin, et al. Effects of halloysite nanotubes and 2-carboxyethyl phenylphosphonic acid on flame retardant and mechanical properties of epoxy resin[J]. Acta Materiae Compositae Sinica, 2021, 38(1): 120-128. doi: 10.13801/j.cnki.fhclxb.20200603.003

Citation:

LV Jiashuainan, DI Kaiying, CAI Penglin, et al. Effects of halloysite nanotubes and 2-carboxyethyl phenylphosphonic acid on flame retardant and mechanical properties of epoxy resin[J]. Acta Materiae Compositae Sinica, 2021, 38(1): 120-128. doi: 10.13801/j.cnki.fhclxb.20200603.003

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Effects of halloysite nanotubes and 2-carboxyethyl phenylphosphonic acid on flame retardant and mechanical properties of epoxy resin

doi: 10.13801/j.cnki.fhclxb.20200603.003

College of Chemical Engineering and Materials, Tianjin University of Science and Technology, Tianjin 300457, China

Received Date: 2020-03-26
Accepted Date: 2020-06-02

Available Online: 2020-06-03

Publish Date: 2021-01-15

Abstract

Abstract

Halloysite nanotubes (HNTs) were compounded with 2-carboxyethyl phenylphosphonic acid (CEPPA) and used for modification of epoxy (EP) to prepare CEPPA-HNTs/EP composite. The effects of the ratios of CEPPA and HNTs on the thermal stability, flame retardancy and mechanical properties of the CEPPA-HNTs/EP composite were studied. TG analysis shows that the combination of CEPPA and HNTs can improve the thermal stability of the CEPPA-HNTs/EP composites, promote the carbonization and reduce the decomposition rate. The analyses of cone and limiting oxygen index show that adding HNTs can reduce the heat release rate, while CEPPA has a more significant effect on the increasing of oxygen index. The FTIR and SEM of the carbon residue show that the reaction of CEPPA and HNTs during the combustion produce silica-aluminate, which promotes the dehydration and cross-linking of the condensed phase. The analysis of mechanical properties shows that when mass ratio of HNTs to EP is 6%, mass ratio of CEPPA to EP is 4%, the tensile strength and impact strength of CEPPA-HNTs/EP composite are increased by 19.4% and 17.3%, respectively. SEM morphologies of impact sections of CEPPA-HNTs/EP composite show the characteristics of ductile fracture.
- epoxy resin,
- halloysite nanotubes (HNTs),
- 2-carboxyethyl phenylphosphonic acid (CEPPA),
- flame retardant,
- mechanical properties
Long Abstrsct
Innovation Points

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References(31)

References

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