The influence of γ-irradiation on the mechanical, thermal degradation, and flame retardant properties of EVA/LDPE/ATH blends

被引：22
|
作者：
Zhou, Shun [1 ,2 ]
Ning, Min [2 ]
Wang, Xiaofeng [2 ]
Yan, Zhijing [2 ]
Guo, Dongfeng [2 ]
He, Qing [2 ]
Zhang, Yaping [2 ]
She, Shike [2 ]
Hu, Yuan [1 ]
机构：
[1] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
[2] China Tobacco Anhui Ind Co Ltd, Ctr Res & Dev, Hefei 230088, Anhui, Peoples R China
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2015年 / 119卷 / 01期
关键词：
EVA/LDPE blends; Flame retardancy; Thermal properties; Mechanical properties; CROSS-LINKING; CABLE INSULATION; COMPOSITES; DECOMPOSITION; POLYETHYLENE; COPOLYMERS; PHOSPHORUS; HYDROXIDE; LDPE;
D O I：
10.1007/s10973-014-4101-z
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This work aimed to study the influence of gamma-irradiation on the mechanical and thermal properties of flame retardant EVA/LDPE/ATH blends. Flame retardant poly(ethylene vinyl acetate)/low-density polyethylene/aluminum hydroxide (EVA/LDPE/ATH) blends were prepared, with a LOI value of 40 % and UL-94 V0 rating. The influence of different gamma-irradiation levels on flammability as well as mechanical, electrical, and thermal properties of EVA/LDPE/ATH blends was investigated. The flame resistance of EVA/LDPE/ATH blends was found to be slightly improved after gamma-irradiation, and meanwhile the mechanical, electrical, and thermal properties were all enhanced due to the increase of cross-linking density. Moreover, thermogravimetric analysis/infrared spectra (TG-IR) were used to explore the thermal degradation process of the EVA/LDPE blends. TG-IR results indicated that the thermal degradation of EVA/LDPE/ATH blends was delayed after gamma-irradiation, and the reduced pyrolysis products amounts were responsible for the improved fire resistance and thermal stability.
引用
收藏
页码：167 / 173
页数：7
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