Crystallization of irradiated polyethylene

被引：20

作者：

Hutzler, BW

Machado, LDB

Villavicencio, ALCH

Lugao, AB

机构：

[1] EMBRARAD, Sao Paulo, Brazil

[2] IPEN CNEN SP, Sao Paulo, Brazil

来源：

RADIATION PHYSICS AND CHEMISTRY | 2000年 / 57卷 / 3-6期

关键词：

polyethylene; crystallization; irradiation; thermal analysis;

D O I：

10.1016/S0969-806X(99)00452-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study compares the effects of radiation dose on the isothermal and non-isothermal crystallization of LLDPE, LDPE and HDPE by differential scanning calorimetry (DSC). It includes qualitative comparison of the nonisothermal data and quantitative calculations of Avrami parameters for crystallization rate and nucleation mode. The isothermal crystallization allowed the observation of the changes in the crystallization rate, related to the decrease in the crystallization temperature caused by the crosslinking of the polymer. It was also observed by the non-isothermal crystallization, the development of crystallites of very different sizes in the polymer. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：431 / 434

页数：4