Synergistic effect of introducing ammonium polyphosphate, carbon nanotubes and acrylonitrile-butadiene-styrene to nylon 6 for improving flame retardancy

被引：0

作者：

Yang D. ^{[1
]}

Lu C. ^{[1
]}

Tang T. ^{[1
]}

Zhang C. ^{[1
]}

Ma Q. ^{[1
]}

Huang X. ^{[1
]}

Zhang Y. ^{[1
]}

机构：

[1] Key Lab. of Polymer Science and Nanotechnology, Chemical Engineering & Pharmaceutics School, Henan University of Science and Technology, Luoyang

来源：

Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research | 2016年 / 30卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Ammonium polyphosphate; Carbon nanotubes; Composites; Flame retardancy; Network; Nylon; 6;

D O I：

10.11901/1005.3093.2015.374

中图分类号：

学科分类号：

摘要：

Carbon nanotubes (CNTs) and ammonium polyphosphate (APP) were applied to improve the flame retardancy of nylon6 (PA6). The results showed that PA6/APP/CNTs exhibited excellent flame retardancy with 1% CNTs and 20%APP (in mass fraction). While for a PA6/APP/CNTs blended with the flammable acrylonitrile-butadiene-styrene (ABS) it needed to add only 0.25% CNTs to meet the flame retardancy equal to that of the above mentioned PA6/APP/CNTs with 1% CNTs. TEM observation showed that CNTs were exclusively dispersed in the PA6 phase of PA6/ABS/APP. Rheological tests showed that the selective dispersion of CNTs facilitated the formation of the network structure of CNTs, thus the needed CNTs content could be lowered from 1% to 0.25% to meet the required flame retardancy. The morphology observation of the residue char revealed that the network structure was benefitial to the formation of compact residue char thus enhanced the flame retardancy for the 1% CNTs filled PA6/APP or 0.25% CNTs filled PA6/ABS/APP, respectively. When the CNTs content in PA6/ABS/APP was 1%, the formed network structure was so dense that the swell of the char layer was inhibited, thereby resulting in poor flame retardancy. © All right reserved.

引用

页码：199 / 208

页数：9

共 27 条

[11] Delobel R., Le B.M., Ouassou N., Alistiqsa F., Thermal behaviours of ammonium polyphosphate-Pentaerythritol and ammonium pyrophosphate- pentaerythritol intumescent additives in polypropylene formulations, J. Fire Sci., 8, 2, (1990)
[12] Almeras X., Renaut N., Jama C., Le B.M., Toth A., Bourbigot S., Marosi G., Poutch F., Structure and morphology of an intumescent polypropylene blend, J. Appl. Polym. Sci., 93, 1, (2004)
[13] Ma H.Y., Tong L.F., Xu Z.B., Fang Z.P., Functionalizing carbon nanotubes by grafting on intumescent flame retardant: nanocomposite synthesis, Morphology, Rheology, and Flammability, Adv. Funct. Mater., 18, 3, (2008)
[14] Ma P.C., Siddiqui N.A., Marom G., Kim J.K., Dispersion and functionalization of carbon nanotubes for polymer-based nanocomposites: A review, Composites: Part A, 41, (2010)
[15] Wu M., Shaw L., Electrical and mechanical behaviors of carbon nanotube-filled polymer blends, J. Appl. Polym. Sci., 99, 2, (2006)
[16] Bose S., Bhattacharyya A.R., Kodgire P.V., Kulkarni A.R., Misra A.S., Interactions induced dispersion and confinement of multiwalled carbon nanotubes in co-continuous polymer blends, J. Nanosci. Nanotechnol., 8, 4, (2008)
[17] Kiliaris P., Papaspyrides C.D., Xalter R., Pfaendner R., Study on the properties of polyamide 6 blended with melamine polyphosphate and layered silicates, Polym. Degrad. Stab., 97, (2012)
[18] Bourbigot S., Le B.M., Dabrowski F., Gilman J.W., Kashiwagi T., PA-6 clay nanocomposite hybrid as char forming agent in intumescent formulations, Fire Mater., 24, 4, (2000)
[19] Almeras X., Bras M.L., Hornsby P., Bourbigot S., Marosi G., Keszei S., Poutch F., Effect of fillers on the fire retardancy of intumescent polypropylene compounds, Polym. Degrad. Stab., 82, (2003)
[20] Riva A., Camino G., Fomperie L., Amigoue P., Fire retardant mechanism in intumescent ethylene vinyl acetate compositions, Polym. Degrad. Stab., 82, (2003)

← 1 2 3 →