INVESTIGATION OF THEQUANTITY AND QUALITY OF WASTE PAPER IN THE PRODUCTION OF PACKAGING CARDBOARD
UDC 676.038.2
Abstract
The recycling of MS-5B and MS-6B waste paper into a test liner and fluting at Karavaevo is accompanied by the accumulation of waste. It is a complex mixture of substances of various types with variable mass composition. The specific content of agricultural waste per 1 ton of products is 38 kg. With a capacity of 60 tons per day of paper and cardboard, about 800 tons per year of waste paper is put into landfill. The inevitability of waste generation and the need for disposal at the landfill requires significant financial costs, therefore waste recycling is an urgent problem of waste paper recycling. The waste mixture was fractionated into plastics, fiber, wood, minerals, metals, rubber, and fabric. It has been established that the total content of plastic and fiber is more than 71% and can be fully used as a binder in thermal pressing technology. Scanning electron microscopy was used to determine the elemental composition of waste paper. Thus, the stability of the chemical composition of the mineral part of the waste has been confirmed, which can ensure the expected quality of products in thermal pressing technology. As a result of the exploratory study of the thermal compression composition (a mixture of crushed waste and sand), a composition was obtained and plate products were manufactured. The experiments yielded positive results and identified a promising area for recycling waste paper – the production of highly filled composites with a polymer matrix and mineral filler.
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