Treatment of a polyethylene powder using a remote nitrogen plasma reactor coupled with a fluidized bed: Influence on wettability and flowability

被引：23

作者：

Leroy, JB

Fatah, N

Mutel, B ^{[1
]}

Grimblot, J

机构：

[1] Univ Sci & Technol Lille, Lab Genie Proc Interact Fluides React Mat, UPRESEA 2698, F-59655 Villeneuve Dascq, France

[2] Univ Sci & Technol Lille, Lab Catalyse Lille, CNRS, UMR 8010, Villeneuve Dascq, France

来源：

PLASMAS AND POLYMERS | 2003年 / 8卷 / 01期

关键词：

polyethylene powder; nitrogen plasma; fluidized bed; wettability; flowability;

D O I：

10.1023/A:1022861724297

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A Far Cold Remote Nitrogen Plasma is used both to fluidize and to treat a polyethylene powder in order to increase its hydrophilic character. The evolution of the wettability of the powder as well as the one of its physical (density, particles size distribution, average diameter, shape factor, and BET surface area) and flow properties (angle of repose, angle of slide, and Hausner index) are determined versus various experimental conditions. It is shown that the plasma treatment efficiency is strongly dependant on the oxygen content of the nitrogen flow and on the velocity of fluidizing gas. Best wettability is obtained by the addition of 0.75% of O-2 in the nitrogen plasma gas and with a high gas velocity. It is also evidenced that the flowability of the powder is slightly altered by the plasma treatment.

引用

页码：13 / 29

页数：17