Industrial Hemp Hurd Processing for Microcrystalline Cellulose Production and its Usage as a Filler in Paper

Authors

  • Larisa V. Yurtayeva Department of Machines and Devices of Industrial Technologies, Reshetnev Siberian State University of Science and Technology, 660037, Krasnoyarsk, Russia
  • Yuri D. Alashkevich Department of Machines and Devices of Industrial Technologies, Reshetnev Siberian State University of Science and Technology, 660037, Krasnoyarsk, Russia
  • Eugene V. Kaplyov Department of Machines and Devices of Industrial Technologies, Reshetnev Siberian State University of Science and Technology, 660037, Krasnoyarsk, Russia
  • Elena A. Slizikova Department of Machines and Devices of Industrial Technologies, Reshetnev Siberian State University of Science and Technology, 660037, Krasnoyarsk, Russia
  • Roman A. Marchenko Department of Machines and Devices of Industrial Technologies, Reshetnev Siberian State University of Science and Technology, 660037, Krasnoyarsk, Russia

Keywords:

Hemp, Microcrystalline cellulose, Refining, Refining degree, Hydrolysis

Abstract

This article substantiates the possibilities of replacing commercial wood with raw materials made from industrial hemp hurd (hemp-woody core) for the production of unbleached and bleached paper pulps. A comparative analysis of the mechanical characteristics of sheets of paper prepared in the Rapid-Köthen apparatus and obtained from pulp obtained from commercial wood and hemp-woody core (HWC) was undertaken. The objective of this study was to determine the effect of mechanical refining of a pulp on the production of microcrystalline cellulose (MCC) from HWC. It was shown that an increase in the pulp refining degree from 15 °SR to 83 °SR led to a decrease in the degree of polymerisation of MCC from 272 to 75, the hydrochloric acid concentration from 73 to 45.63 g/L, and the hydrolysis time from 120 min to 60 min. With the addition of 5% MCC obtained from hemp-woody core, the mechanical properties of laboratory paper sheets from HWC were improved until they met ISO 12625-4-2017 (2017) requirements for NS-2. The results obtained support using hemp-woody core for the production of MCC.  

Downloads

Published

2024-03-19

Issue

Vol. 19 No. 2 (2024)

Section

Research Article or Brief Communication