Influence of Processing Additives on Adhesive Properties of Surface-Modified Low-Density Polyethylene
Influence of Processing Additives on Adhesive Properties of Surface-Modified Low-Density Polyethylene
复制标题
加工助剂对表面改性低密度聚乙烯粘合性能的影响
DOI：
10.1002/mame.200300166
复制
发表时间：
2004
影响因子：
3.9
通讯作者：
Š. Florián
中科院分区：
文献类型：
--
作者：
I. Novák;Š. Florián
研究了电晕放电改性低密度聚乙烯在长期疏水恢复过程中的表面和粘接性能。研究了电晕放电改性的低密度聚乙烯老化过程中极性的变化，降低了表面自由能、极性分量和粘附机械功。在低密度聚乙烯的长期疏水化过程中，表面性能的下降主要出现在改性后的前30 d内。在进一步老化的过程中，聚合物的疏水性恢复进行得更慢。已经发现，电晕放电改性后的低密度聚乙烯的表面和粘合性能的值以及它们在老化期间降低的动力学在很大程度上取决于聚合物中加工添加剂的存在。
The paper deals with the surface and adhesive properties of low-density polyethylene modified by corona discharge, which appear during the long-term hydrophobic recovery of the modified polymer. The study was aimed at the change in polarity during aging of low-density polyethylene modified by corona discharge reducing the surface free energy, its polar component and the mechanical work of adhesion. During the long-term hydrophobization of low-density polyethylene the main decrease of the surface properties appeared within the first 30 d after modification. In the course of further aging the hydrophobic recovery of the polymer proceeded more slowly. It has been found that the value of the surface and adhesive properties of low-density polyethylene after modification with corona discharge as well as the dynamics of their decrease during the aging is to a great extent dependent on the presence of the processing additives in the polymer.