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The paper studies the influence of widely zoned in Belarus hardwood birch, alder and aspen on the properties of thermomechanical pulp and paper made from it. Temperature of steaming intensifies the process of grinding chips of each tree species, mostly aspen wood. Bleaching with hydrogen peroxide helps to reduce energy consumption for grinding more than 15% and increase freeness of mass at 20%, besides bleaching can significantly improve the strength characteristics of paper. Aspen wood is the most significantly influenced. |
