Effects of silane grafting and crosslinking on MgO/high density polyethylene composites

被引：0

作者：

Wang H. ^{[1
]}

Wu D. ^{[2
]}

Liu Y. ^{[1
]}

Xu H. ^{[1
]}

Zheng X. ^{[1
]}

Zhuang J. ^{[1
]}

机构：

[1] Engineering Research Center for Polymer Processing Equipment, Ministry of Education, Beijing University of Chemical Technology, Beijing

[2] State Key Laboratory of Organic and Inorganic Composite Materials, Beijing University of Chemical Technology, Beijing

来源：

Liu, Ying (liuying@mail.buct.edu.cn) | 2017年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 34期

关键词：

Crosslinking; Grafting; Mechanical properties; Polyethylene; Polymer-matrix composites; Thermal conductivity;

D O I：

10.13801/j.cnki.fhclxb.20160322.005

中图分类号：

学科分类号：

摘要：

The silane grafting and crosslinking high density polyethylene (HDPE) filled with MgO was prepared by the method of two-step reaction-extrusion, in order to study the effects of the silane grafting and crosslinking on the crystallinity, the mechanical properties, the heat resistance, and the thermal conductivity of the MgO/HDPE composites. And the graft-crosslinking and the crystallization were characterized by FTIR and DSC, respectively. The results show that the tensile strength, the notched impact strength and the heat deflection temperature (HDT) of the MgO/HDPE composites increase from 20.41 MPa, 1.875 kJ/m2 and 74.6℃ without graft-crosslinking to 27.24 MPa, 7.875 kJ/m2 and 83.5℃ respectively after crosslinking, and the thermal conductivity of the crosslinking composites (0.447 W/(m·K)) is almost the same with the non-crosslinking ones. © 2017, Chinese Society for Composite Materials. All right reserved.

引用

页码：40 / 46

页数：6

共 21 条

[1] Hatsuo I., Very high thermal conductivity obtained by boron nitrde-filled polybenzoxazine, Thermochimica Acta, 320, pp. 177-186, (1998)
[2] Ye C.M., Shentu B.Q., Weng Z.X., Thermal conductivity of high density polyethylene filled with graphite, Journal of Applied Polymer Science, 101, 6, pp. 3806-3810, (2006)
[3] Krupa I., Chodak I., Physical properties of thermoplastic/graphite composites, European Polymer Journal, 37, 11, pp. 2159-2168, (2001)
[4] Karsli N.G., Aytac A., Tensile and thermomechanical properties of short carbon fiber reinforced polyamide 6 composites, Composites Part B: Engineering, 51, pp. 270-275, (2013)
[5] Liu K., Liu Y., Wu D.M., Et al., Effect of flake graphite orientation on the thermal conductivity of flake graphite/polypropylene, flake graphite/nylon 66 composites, Acta Materiae Compositae Sinica, 31, 3, pp. 610-616, (2014)
[6] Sun T., Fan H., Wang Z., Et al., Modified nano Fe<sub>2</sub>O<sub>3</sub>-epoxy composite with enhanced mechanical properties, Materials & Design, 87, pp. 10-16, (2015)
[7] Chiang W.Y., Hu C.H., Approaches of interfacial modification for flame retardant polymeric materials, Composites Part A, 32, 3, pp. 517-524, (2001)
[8] Yang Z., Cai J., Zhou C., Et al., Effects of the content of silane coupling agent KH-560 on the properties of LLDPE/magnesium hydroxide composites, Journal of Applied Polymer Science, 118, pp. 2634-2641, (2010)
[9] Yan J., Shentu B.Q., Weng Z.X., Effect of HDPE-g-MAH on Properties of HDPE/Graphite Thermal Conductive Composites, Polymer Materials Science and Engineering, 28, 9, pp. 44-47, (2012)
[10] Wang H., Xie G., Ying Z., Et al., Enhanced Mechanical Properties of Multi-layer Graphene Filled Poly(vinyl chloride) Composite Films, Journal of Materials Science & Technology, 31, 4, pp. 340-344, (2015)

← 1 2 3 →