Development of technology for polymer-sanded plates based on waste paper of the MS-5B brand

The recycling of MS-5B waste paper into a test liner and fluting at JSC Karavaevo is accompanied by the accumulation of waste, which is a complex mixture of substances of various types with variable mass composition. More than 1.2 million tons are delivered to the landfill per year, thus the specific content of waste per 1 ton of products is about 38 kg. The resulting waste must be disposed of at the landfill, which requires significant financial costs. Therefore, waste recycling has become an urgent problem of recycling waste paper. The waste mixture is 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 used in full as a binder in thermal pressing technology. The technology of polymer-sanded plates based on waste paper of the MS-5B brand is considered. A polymer product (PI) was produced in the form of tiles with a size of 330´330´35 mm. With a tile weight of 3.3–3.5 kg/piece, the line capacity of 2 tons per shift (8 hours) turned out to be close to the calculated one when choosing equipment. The second option of the study is the production of PPIs. The compositions of the feedstock and sand were studied in the following ratios, %: 50/50; 40/60; 30/70. Currently, the operation of the equipment has been adjusted, the production modes of 2 types of products have been worked out: garden tiles 330´330´35 mm and road tiles 700´700´80 mm for roads and parking lots.

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