Novel Creaming Agent for Preparation of Creamed Concentrated Natural Rubber Latex

Abstract

Creaming process with a novel creaming agent, hydroxyl ethyl cellulose, and ammonium laurate soap is performed. It has been found that the total solid content and dry rubber content of creamed latex are 64.33% and 63.31%, respectively. Latex properties of the creamed latex are examined and compared with that of centrifuged latex. It has been found that most properties are similar, except that extractable protein content, mechanical stability time, and viscosity of the creamed latex are higher than that of the centrifuged latex. Furthermore, the creamed latex exhibits larger particle size with broader particle size distribution than that of the centrifuged latex.