Aging of OMMT/halogen-antimony-filled LGFPA6 composite: Effect on static and dynamic mechanical properties and fire behaviors

作者：Zuo, Xiaoling^*; Song, Haishuo; Shao, Huiju; Wei, Tao; Guo, Jianbing^*

来源：Polymer Composites, 2019, 40(6): 2208-2218.

DOI：10.1002/pc.25026

• FLAME-RETARDANT
• MIGRATION
• DEGRADATION
• THERMOOXIDATION
• POLYMERS
• IMPACT
• CLAY

The static and dynamic mechanical properties and fire behaviors for long-glass-fiber reinforced polyamide 6 composite filled with organo-modified montmorillonite/brominated epoxy resins/antimony trioxide (OMMT/FR/LGFPA6) have been investigated by comparison with the formulation without OMMT (FR/LGFPA6), being dealt with accelerated aging condition. Relative to the unaged composites, both aged composites presented the improved static mechanical properties after 10-day aging, the increased degree of cross-linking in the amorphous region, and the increased LOI value as well as maintained the optimal UL-94 rating. However, after a long-time aging exposure, the aged FR/LGFPA6 composite was more flammable and its mechanical properties were more severely impacted by aging. Remarkably, substitution of a certain content of halogen-antimony flame retardants with OMMT not only slowed down the rate of degradation but also weakened the flammability for FR/LGFPA6 composite over the whole period of aging. POLYM. COMPOS., 40:2208-2218, 2019.

• 出版日期2019-6
• 单位贵州大学