DEVELOPMENT OF AN EFFECTIVE TECHNOLOGY FOR PRODUCING COMPOSITE WOOD-PLASTIC BOARD MATERIALS FOR CONSTRUCTION AND FURNITURE PURPOSES

Authors

  • D.K. Kholmurodova Doctor of technical sciences, рrofessor, head of department of medical chemistry of Samarkand State Medical University, Republic of Uzbekistan, Samarkand dilyax82 @mail.ru
  • G. O. Ulugboeva Assistant, Department of Medical Chemistry, Samarkand State Medical University, Samarkand, Uzbekistan

Keywords:

technology
composition
modified urea-formaldehyde resin
cotton stem filler
wood-plastic board
specific pressure
pressing temperature
heating duration
water absorption
tensile strength.

Abstract

This article presents the results of research in the development of an effective technology for obtaining composite wood-plastic board materials for construction and furniture purposes based on fillers from cotton stalks, which are agricultural waste, and polymer binders based on modified urea-formaldehyde and gossypol resins, epichlorohydrin, benzyl chloride, and polyvinyl chloride. The study revealed a correlation between the ultimate bending strength, tensile strength and water absorption with the parameters of pressing polymer-fillers of the mass. At the same time, to obtain composite wood-plastic board materials, it is recommended to use a urea-formaldehyde resin modified with reactive structuring additives as a binder.

It has been established that the optimal technological mode for pressing the mass of polymer fillers and cotton stalks is: specific pressure 35 kg/m², pressing temperature 168-170°C, heating duration 7-10 minutes.

Read More

Downloads

Submitted

2023-11-03

Published

2023-11-02