АВТОМАТИЗИРОВАННЫЕ ИССЛЕДОВАНИЯ ДИЭЛЕКТРИЧЕСКИХ ПАРАМЕТРОВ ПОЛИМЕРНЫХ МАТЕРИАЛОВ В СОСТАВЕ ТЕХНОЛОГИЧЕСКОЙ СМЕСИ

Abstract

The use of high-quality polymer film as packaging makes it possible to maintain marketable quality and reduce losses during storage of agricultural products even without additional processing. An overview of the existing control systems for the electrophysical parameters of polymeric materials is presented, the use of which serves as the basis for selecting the correct processing modes with the use of high-frequency electrothermal processing. When measuring the electrophysical characteristics of polymeric materials in multicomponent mixtures using standard testing methods, significant errors occur. In this regard, it is necessary to improve laboratory methods and diagnostic tools to solve research problems by automating the process of accounting for air gaps and studying their influence on the process of controlling the electrophysical parameters of the technological mixture. (Research purpose) The research purpose is developing an automated control system for the installation to determine the electrophysical parameters of multicomponent polymeric materials and studying the effect on the dielectric loss and dielectric permittivity of existing air gaps. (Materials and methods) Considered a number of methods to establish the methodology for conducting experimental studies on finding the electrophysical parameters of technological systems with air. (Results and discussion) We have developed an automated installation for determining the parameters of materials, created on the basis of domestic equipment of the VM-560 model. Methods of hardware and algorithmic implementation of the developed system of automated control of the process of investigation and control of the dielectric losses and permittivity of granular polymeric materials were presented. Experimental studies of the effect of air gaps and insulating material on the electrophysical properties of polymeric materials were performed. Refined electrophysical parameters of multicomponent polymers used in the production of films for packaging materials resistant to ultraviolet radiation have been obtained. (Conclusions) It was shown that the developed control system allowed to increase the accuracy of measurement by 12 percent.