首页  科学研究  学术论文  2003年
 
Li ZZ, Qu BJ (2003) Polymer Degradation and Stability 81(3), 401-408.
文章来源:WOS    作者:SKLFS    发布时间:2011-08-16

Li ZZ, Qu BJ (2003) Flammability characterization and synergistic effects of expandable graphite with magnesium hydroxide in halogen-free flame-retardant EVA blends. Polymer Degradation and Stability 81(3), 401-408. [In English]

Web link: http://dx.doi.org/10.1016/s0141-3910(03)00123-x

Keywords:

expandable graphite; magnesium hydroxide; synergistic effect; halogen-free flame-retardant; ethylene vinyl acetate copolymer; filled polypropylene composites; vinyl acetate copolymer; mechanical-properties; lldpe blends; polyolefins; polyurethane; degradation; combustion; systems;

Abstract: The flammability characterization and synergistic effects of different types of expandable graphite (EG) with magnesium hydroxide (MH) in halogen-free flame-retardant (HFFR) ethylene vinyl acetate (EVA) blends have been studied by cone calorimeter test (CCT), thermogravimetric analysis (TGA), limiting oxygen index (LOI), and UL-94 test. The results show that the particle size and expansion ratio of EG have a great effect on the flammability of the HFFR EVA/MH/EG blends. The EG with bigger particle size and higher expansion ratio can apparently increase the LOI value and improve the UL-94 flammability properties of EVA blends. The data obtained from the CCT indicate that the heat release rate (HRR), the effective heat of combustion (EHC), and the mass loss rate (MLR) of EVA/MH/EG,blends decrease remarkably with increasing the particle size and expansion ratio of EG. However, the specific extinction area (SEA) data show that the addition of EG can apparently increase the smoke emission of EVA/ MH/EG blends. The TGA results show that the thermal stability of EVA/MH/EG blends increase with increasing the EG particle size and expansion ratio. (C) 2003 Elsevier Ltd. All rights reserved.

 
 
相关链接
Li ZZ, Qu BJ (2003) Polymer Degradation and Stability 81(3), 401-408.
联系我们
安徽省合肥市金寨路96号
中国科学技术大学
火灾安全全国重点实验室
邮政编码:230026
   
Tel:(+86)551 63601651
Fax:(+86)551 63601669
E-mail:sklfs@ustc.edu.cn
Copyright © 1990-2011 State Key Laboratory of Fire Science, University of Science and Technology of China
火灾科学国家重点实验室 版权所有 皖ICP备:002106505 号