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Experimental research about characterization of novel porous composites with special applications

P. A. POP1,* , D. LUCA-MOTOC2

Affiliation

  1. University of Oradea, Department of Mechatronics, 1 Universitatii Str., 410087, Oradea, Romania
  2. Transilvania University of Brasov, Department of Materials Science, 29 Eroilor Blvd, 500036, Brasov, Romania

Abstract

Porous materials are usually applied in buildings industry such as concrete, plasters, or in special applications as isolators of buildings, sonic barriers along the freeways to suppress the noise pollutions. The paper presents an experimental research used for determination of main characteristics of porous composites from gypsum family with special applications, like these thermal and acoustical panels, bandages and lightweight orthopedic corsets. The samples from gypsum and special acoustic-gypsum with original receipts were been subjected at multiple tests by used modern dynamic installations to determine their elastic characteristics. These new composite materials obtained from modeling gypsum plaster reinforced with expandable polystyrene waste, or perlite, glass fibers, etc., which improved their sound absorption and thermal properties. The quality characteristics of gypsum family with special applications depend on many factors, such as fabrication process, granulation process, roast temperature, work temperature, environment, additive use, breakage, etc. In this way, a new fabrication process of gypsum plaster by heating in a microwave field of clean breakage gypsum was used to obtain the novel composites, which due to a great productivity, machining efficiency and high quality of materials. The results of experiments confirmed the methods and installations used, which can be carrying on other sonic-materials..

Keywords

Elastic characteristics, Gypsum plaster, Microwave energy, Porous material.

Submitted at: April 9, 2015
Accepted at: June 24, 2015

Citation

P. A. POP, D. LUCA-MOTOC, Experimental research about characterization of novel porous composites with special applications, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 7-8, pp. 943-951 (2015)