scholarly journals Mechanical and Thermal Behavior of Hybrid Composite Medium Density Fiberboard reinforced with Phenol Formaldehyde

Heliyon ◽  
2021 ◽  
pp. e08597
Author(s):  
N. Pugazhenthi ◽  
P. Anand
2008 ◽  
Vol 3 (5) ◽  
pp. 331-339 ◽  
Author(s):  
O. Sulaiman ◽  
R. Hashim ◽  
R.N. Kumar ◽  
P. Tamyez ◽  
R.J. Murphy ◽  
...  

1996 ◽  
Vol 430 ◽  
Author(s):  
R. J. King ◽  
R. W. Rice

AbstractFlush mounted, in-press microwave (600–800 MHz) sensors have been developed for monitoring the complex permittivity in real time during the cure of medium density fiberboard. The measured dielectric constant (ε')a nd loss factor (ε") are independent diagnostic indicators of dynamic cure events that are catalyzed by heat, pressure and moisture. In particular, with this technique the instantaneous effects of resin viscosity, rate and degree of adhesive cure, the wood density, the changes in phase of the moisture and the rate of moisture depletion can be monitored during the entire curing process.The comparative roles of moisture and adhesive content are discussed, along with the comparative modulus of rupture with cure duration. Results are presented comparing the dynamics of phenol-formaldehyde and isocyanate resins.


RSC Advances ◽  
2021 ◽  
Vol 11 (40) ◽  
pp. 25010-25017
Author(s):  
Li Lu ◽  
Yan Wang ◽  
Tianhua Li ◽  
Supeng Wang ◽  
Shoulu Yang ◽  
...  

Reactions between CaCO3 and CH2O2 during polycondensation of UF resin produce Ca2+. Ionic bond complexation binds Ca2+ with UF resin. The UF resin crystalline percentage decreases from 26.86% to 22.71%. IB strength of resin bonded fiberboard increases from 0.75 to 0.94 MPa.


2016 ◽  
Vol 75 (3) ◽  
pp. 335-346 ◽  
Author(s):  
Lidia Gurau ◽  
Nadir Ayrilmis ◽  
Jan Thore Benthien ◽  
Martin Ohlmeyer ◽  
Manja Kitek Kuzman ◽  
...  

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