Properties of Nylon PA6-based Nanocomposites Co-modified with Graphene Oxide/sodium Benzoate Complex Nucleating Agent

被引：0

作者：

Huang H. ^{[1
]}

Zhang X. ^{[1
]}

Yang S. ^{[1
]}

Xiao L. ^{[1
]}

Zhang Z. ^{[1
]}

Yan L. ^{[1
]}

Lin H. ^{[1
]}

Bian J. ^{[1
]}

Chen D. ^{[2
]}

机构：

[1] College of Materials Science and Engineering, Xi-Hua University, Chengdu

[2] College of Polymer Science and Engineering, Sichuan University, Chengdu

来源：

Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research | 2022年 / 36卷 / 06期

关键词：

Composite; Graphene oxide (GO); Mechanical property; Nylon 6 (PA6); Sodium benzoate (Sb); Thermal conductivity;

D O I：

10.11901/1005.3093.2021.248

中图分类号：

学科分类号：

摘要：

Firstly, a complex nucleating agent (GO-SB) was synthesized by hydrothermal method with graphene oxide (GO) and sodium benzoate (SB) as raw material, and then nanocomposites of nylon 6 (PA6) /GO-SB were prepared by melt blending method with PA6 as matrix and GO-SB as complex nucleating agent. The effect of the introducing GO and SB separately, and GO-SB simultaneously on the morphology, mechanical and thermal-property of PA6 based nanocomposites were investigated. The results show that there are electrostatic interaction and π-π conjugation between GO and SB, and the addition of SB can promote the formation of γ-crystals in PA6. GO-SB was uniformly dispersed in PA6 matrix as heterogeneous nucleating agent, which could induce the increase of crystallization temperature, crystallinity, and thermal deformation temperature of PA6 based nanocomposites. The tensile strength and impact strength of PA6/GO-SB (100/0.05/0.25 in mass fraction) nanocomposites are 69.9%, and 157.1% higher than those of pure PA6, respectively. The tensile strength, impact strength and elastic modulus of PA6/GO-SB (100/0.05/0.25) nanocomposites were increased by 13.6%, 186.4% and 52.6%, respectively, compared with those of PA6/GO-SB (100/0.3/0) nanocomposites. Compared with k=0.238 W/m·k of the pure PA6, the thermal conductivity k=0.536 W/m·k of PA6/GO-SB (100/0.3/0) nanocomposite is increased by 125.2%; while the thermal conductivity k=0.854 W/m·k of PA6/GO-SB (100/0.05/0.25) nanocomposites is increased by 258.8%. © 2022, Editorial Office of Chinese Journal of Materials Research. All right reserved.

引用

页码：416 / 424

页数：8

共 43 条

[1] O'Neill A, Bakirtzis D, Dixon D., Polyamide 6/graphene composites: the effect of in situ polymerization on the structure and properties of graphene oxide and reduced graphene oxide, European Polymer Journal, 59, 1, (2014)
[2] Pant H R, Pant B, Park C H, Et al., RGO/Nylon-6 composite mat with unique structural features and electrical properties obtained from electrospinning and hrdrothermal process, Fibers and Polymers, 14, 6, (2013)
[3] Binsbergen F L, Delange B G M., Heterogeneous nucleation in the crystallization of Polyolefin's: Part 2. Kineties of crystallization of nucleated Polypropylene, Polymer, 11, 4, (1970)
[4] Beck H N, Ledbetter H D., DTA study of heterogeneous nucleation of crystallization in Polypropylene, Journal of Applied Polymer Science, 9, 6, (1965)
[5] Beek H N., Heterogeneous nucleating agents for Polypropylene crystallization, Journal of Applied Polymer Science, 11, 5, (1967)
[6] Lu L Y, Zhu C S, Research progress on the effect of nucleating agent on the structure and properties of nylon, Application of Engineering Plastics, 31, 5, (2003)
[7] Lai D W, Li D X, Yang J, Et al., Preparation and characterization of hyperbranched polyamide 6 modified by organic montmorillonite [J], Journal of Composite Materials, 33, 8, (2016)
[8] Huang Z G, Zou X Y, Fang L C., Study on non isothermal crystallization behavior of nylon 6/kaolin composite, Modern Plastic Processing and Application, 22, 5, (2010)
[9] Chen X D, Chen G W., Effect of components on PA6/PP/Talcum Powder ternary composite, Application of Engineering Plastics, 46, 5, (2018)
[10] Xu Q J, Wang S B, Chen F F, Et al., Studies on the interfacial effect between nano-SiO<sub>2</sub> and nylon 6 in nylon 6/SiO<sub>2</sub> nanocomposites, Nanomaterials and Nanotechnology, 6, 1, (2016)

← 1 2 3 4 5 →