Effect of Pro-degradant Additives Concentration on Aging Properties of Polypropylene Films

被引：19
|
作者：
Islam, N. Mohamed [1 ]
Othman, N. [1 ]
Ahmad, Z. [1 ]
Ismail, H. [1 ]
机构：
[1] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Perai 14300, Pulau Pinang, Malaysia
来源：
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2010年 / 49卷 / 03期
关键词：
Degradable polypropylene; Natural exposure; PP; Pro-degradant additives; Thermo-oxidative aging; LOW-DENSITY POLYETHYLENE; BIODEGRADATION;
D O I：
10.1080/03602550903413904
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
This paper describes the effect of pro-degradant (PDA) additives on degradation behaviour of polypropylene (PP) films. Thin films (0.12 mm) containing this additives was prepared by sheeting process. The effect of natural exposure (NE) and heating of PP films in the presence or absence of additives were investigated. The apparent density value of PP film contained PDA are proportionate with PDA concentration. Meanwhile melt flow index (MFI) decreased as PDA concentration increased. Changes in tensile properties and carbonyl index (CI) were used to investigate the degradation behavior of the films. The results indicate that the presence of PDA contributes to the degradation and the activity is proportional to the amount of PDA. All samples were found to be more susceptible to thermo-oxidation than to natural exposure.
引用
收藏
页码：272 / 278
页数：7
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