SCREW ELEMENT CHARACTERIZATION IN AN IN-LINE LFT-D PROCESS

摘要

Studies have been done on three different elements (mixing element and kneading blocks) to determine their influence on fibre length and wetting properties during an in-line direct compounding process using glass fibre with PP at a nearly constant specific output. Effects of individual elements could be ascertained by using only 6D length of the barrel. At 30wt% loading, the screw element geometry plays a dominant role in fibre length distribution. At 50wt% loading, fibre length is influenced mainly by the screw speed. SEM analysis results of the samples are provided. Characterization of the individual type of elements can be used as guidelines in future application.