Thu bột cơ học P-RC-APMP cho độ trắng cao từ gỗ keo tai tượng.

Abstract

A study of optimized impregnation of the hard wood species (Acacia mangium) in P-RC-APMP process, using different impregnation conditions was presented. The doses of sodium hydroxide and hydrogen peroxide were 2.1% and 5.0% (vs. oven dried wood), respectively, with impregnating time of 17.5 minutes gave good P-RC-APMP pulp with brightness of » 80% ISO, tensile breaking length of 4730 m, tear index of 4 mN.m²/g and burst index of 2 kPa.m²/g. The pulp may be used for productions of different printing paper grades.