Camlibel, OsmanAkgul, Mehmet2021-01-142021-01-142020Bu makale açık erişimli değildir.1336-4561https://hdl.handle.net/20.500.12587/12878In this study, it is investigated that are calcite filler can be used in the production of medium density fiberboard. Chips have been to the process of cooking for 4-5 minutes in Asplund defibrator with the vapor pressure of 7-7.5 bar, and 1800C temperature. 1.5% paraffin and 1% ammonium sulphate to be pulverized is added to fibers on the output of defibrillator and blowline line. Calcite fillers are prepared in a separate tank in order to use calcite instead of lignocellulosic fibers in the production of 1 m(3) MDF. After that, urea formaldehyde glue is prepared as three different solutions which include the calcite, respectively with 3% (20 kgm(-3)), 6% (40 kg-m(-3)), 9% (60 kg-m(-3)). The fibers are dried to moisture of 8%-12%. This press applies temperature about 185-190 degrees C and pressure about 32-34 kg-m(-2) to the mixture material for 270 seconds during pressing time. MDF panels (2100 x 4900 x 18 mm) were produced in the process. Both mechanical and physical experiments are performed on boards which are produced.eninfo:eu-repo/semantics/closedAccessMDFfiberboardcalcite fillerphysical propertiesmechanical propertiesArticle6522312442-s2.0-85084914782Q2WOS:000530092600005Q3