Transition metal catalyzed oxidative aging of low density polyethylene: effect of manganese (III) acetate

被引：10
作者：
Maji, S. [1 ]
Chattopadhyay, P. K. [1 ]
Khastgir, D. [1 ]
Chattopadhyay, S. [1 ]
机构：
[1] Indian Inst Technol, Ctr Rubber Technol, Kharagpur 721302, W Bengal, India
来源：
JOURNAL OF POLYMER RESEARCH | 2010年 / 17卷 / 03期
关键词：
Oxidative degradation; LDPE; Waste plastics recycling; Dispersion promoter; Transition metal catalyst; MUNICIPAL PLASTIC WASTE; POLY(ETHYLENE OXIDE); THERMAL-DEGRADATION; PROOXIDANT SYSTEM;
D O I：
10.1007/s10965-009-9319-2
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The paper discusses the effect of manganese (D dagger D dagger D dagger) acetate in the degradation of low density polyethylene (LDPE). Stearic acid has been used as a dispersion promoter to circumvent non-uniform dispersion of inorganic compound like manganese (D dagger D dagger D dagger) acetate in LDPE. A detailed study has been made to investigate the effect of dispersion promoter on degradation of LDPE. The combined effect of dispersion promoter and manganese (D dagger D dagger D dagger) acetate has been studied in accelerated aging of LDPE. Masked degradation of LDPE has been noted in presence of natural rubber (NR). The degradation processes of LDPE eventually have been observed to follow different mechanistic pathways in presence of dispersion promoter and transitional metal catalyst. At an optimized condition of time and temperature, LDPE has been found to be degraded into a semi-solid state in combined presence of manganese (D dagger D dagger D dagger) acetate and the dispersion promoter. The Arrhenius equation has been adopted to predict the life time of the LDPE having different amount of manganese (III) acetate.
引用
收藏
页码：325 / 334
页数：10
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