Novel paper sizing agents from renewables. Part 1: Preparation of a paper sizing agent derived from natural plant oils

Autor: Jürgen Sartori, Thomas Rosenau, Antje Potthast, Elisabeth Lackinger, Leo Schmid, Akira Isogai
Rok vydání: 2011
Předmět:
Zdroj: Holzforschung. 65:3-11
ISSN: 1437-434X
0018-3830
Popis: Natural oils derived from linseed, rapeseed, soybean, and a special breed of sunflower were tested for the production of maleated fatty oils for paper sizing in the ene-reaction with maleic anhydride. All these maleated oils were subjected to a conventional sizing test proving their ability to hydrophobize handsheets. Natural oils having only monounsaturated fatty acid residues (oleic acid) in the triglycerides worked best by having lower product viscosity and higher yields. The optimized production procedure employs antioxidant addition, an increased maleic anhydride:triglyceride ratio of 4:1, as well as increased pressure to reduce undesired polymeric byproducts and to increase yield.
Databáze: OpenAIRE