Linear low density polyethylene: Microstructure and sealing properties correlation

被引：17
作者：
Simanke, Adriane G. [1 ]
de Lemos, Cristovao [1 ]
Pires, Marcia [1 ]
机构：
[1] Braskem SA, BR-95853000 Triunfo, RS, Brazil
来源：
POLYMER TESTING | 2013年 / 32卷 / 02期
关键词：
LLDPE; Sealing properties; Morphology; Comonomer distribution; SEMICRYSTALLINE POLYMER-FILMS; BEHAVIOR;
D O I：
10.1016/j.polymertesting.2012.11.010
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructures of four commercial linear low density polyethylenes (LLDPE) were evaluated and correlated with their sealing properties. Atomic Force Microscopy (AFM), Temperature Rising Elution Fractionation (TREF), Differential Scanning Calorimetry (DSC) and Crystallization Analysis Fractionation (CRYSTAF) experiments revealed that the comonomer distribution is one of the main factors that influence the sealing properties. The superior sealing performance showed by metallocene LLDPE samples in comparison to Ziegler-Natta LLDPE samples can be attributed to their well balanced chemical composition distribution. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：279 / 290
页数：12
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