Analysis of the increase in the degree of grinding of annual plant polymers in pulp and paper production

Abstract

The pulp and paper industry mainly uses lignocellulose raw materials obtained from both gymnosperms (coniferous trees) and angiosperms (deciduous trees), while preference is given to gymnosperms in various technological applications. This preference can be explained by the properties of the fibers inherent in gymnosperms, which, as a rule, are longer than those of angiosperms. Fiber morphology, in particular the length of cellulose fibers, plays a crucial role in the paper production process, significantly affecting the paper-forming properties of cellulose, as well as the mechanical and physical characteristics of the final products. Given the growing demand for sustainable and environmentally friendly methods, the pulp and paper industry is exploring the potential of using annual plants as an alternative source of raw materials. It is extremely important to investigate the fundamental differences in the cellular structure and chemical composition of these alternative fibers compared to traditional wood fibers, especially from conifers.