PAPERmaking! FROM THE PUBLISHERS OF PAPER TECHNOLOGY Volume 5, Number 2, 2019
12% of degree of fiber disintegration. These results demonstrate that the B Ǧ pMDI/PVA/OS adhesive is a possible alternative to the current urea – formaldehyde resins for the recycling of waste MDFs into recycled MDFs without FE. A Modified Glue for Producing Particle Boards and Boards Based on Waste of Annual Plants, S. A. Ugryumov et al, Polymer Science , Series D, 12 (3), pp.251 – 253 . This paper proposes a water-soluble phenol-formaldehyde resin modified by an alkyd oligomer for reducing the surface tension of an adhesive composition and improving its distribution over wood particles or particles of annual plants during the production of compressed board materials for construction purposes. It was found that the physical and mechanical characteristics of boards increase when produced with the use of the modified glue obtained with a small change in its production technology. A Technology for Production of Fiberboards Based on Cotton Stalks, V. E. Tsvetkov et al, Polymer Science , Series D, 12 (3), pp.328 – 330. This paper considers a technique for producing raw materials and grinding of fiber from cotton stalks, as well as its properties. The properties of medium-density boards obtained in the laboratory using the dry process under various technological conditions are investigated. The results of comparative tests of wood fiber and cotton fiber boards are given.
Technical Abstracts
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