Comparative characteristics of papers obtained from flax and hemp

Purpose. To carry out a comparative analysis of paper obtained on the basis of flax fiber and non-narcotic hemp. Methodology. The research was carried out using modern theoretical and experimental methods: an experimental study of flax and hemp paper properties was performed using standard methods and measuring tools, including the next: the weight of 1m2 of paper was determined by the instrumental method according to DSTU 2297-93 (GOST 13199-94) «Semi-finished fibrous, paper and cardboard. Method for determining the product mass with an area of 1m2 »; determination of air permeability in accordance with DSTU 2906-94 (GOST 30114-95) (ISO 5636-1: 1984) «Paper and cardboard. Determination of air permeability (middle range). General method requirements»; whiteness determination in accordance with DSTU 2570-94 (GOST 30113-94) «Paper and cardboard. Whiteness determining method»; determination of absolute pushing resistance in accordance with DSTU ISO 2758: 2007 «Paper. Determination of pushing resistance (ISO 2758: 2001, IDT)»; results of experimental studies were treated using the methods of mathematical statistics on the applications «MathCAD-2000», «Maple 6,5», «Microsoft Office Excel 2016» and «Microsoft Office Word 2016». Results. The quality indicators of classical composition paper (respectively from cotton and wood pulp) and based on vegetable raw materials composition (cellulose from the fiber of flax oil + wood cellulose; cellulose from hemp bast + coniferous cellulose) are analyzed; the possibility of obtaining high-quality cellulose from non-narcotic types of hemp and flax oil is confirmed; a comparative analysis of the obtained types of paper was held; the recommendations on improvement of processing technologies of oil flax straw and non-narcotic grades of hemp into cellulose (that allow rational use own resources) are given. Scientific novelty. The influence of different types of celluloses obtained from oil flax fibers and non-narcotic hemp on the physical and mechanical properties of the obtained grades of paper is determined. A comparative analysis of quality was performed. Practical significance. Based on the obtained consumer characteristics of paper of different grades, it is possible to establish their functional purpose and application in different industries. The bast paper consumption characteristics established in the work confirm the feasibility of replacing imported raw materials of cotton and scarce wood raw materials to obtain different types of paper

non-narcotic hemp; paper; cellulose; fiber; oil flax