THE HIGH CONCENTRATION COLORED MASTERBATCH: INFLUENCE OF PARAFFIN WAX AND PREMIXING PROCESSING METHOD ON DISPERSION QUALITY
Journal: International Journal of Advanced Research in Engineering and Technology (IJARET) (Vol.8, No. 3)Publication Date: 2017-05-01
Authors : Lahcen Safraoui; Basma Benhadou; Abdellah Haddout; Mariam Benhadou; Mohamed Benzhour;
Page : 01-11
Keywords : Masterbatches; Processing parameters; Thermoplastics matrix; Coloration process; Premixing; Dispersion quality; Wax.;
Abstract
Among major problems encountered by manufacturers of highly concentrated color masterbatch is the poor dispersion of the pigment caused by the strong tendency to build up agglomerations of powdered pigment particles. The aim of this study is to characterize the effect of the conditions of the premixing process and the formulation of the master batch of high concentration 40% on the quality of the dispersion. We studied the influence of the speed, temperature, time and order of the introduction of the premix ingredients and the use of a wetting agent on the dispersion quality by the colouring strength measurement and pressure test by filtration. A study by optical microscopy was considered.
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