One of the most common types of paper and paperboard production in Iran, is the production of various grades of liner, test liner and corrugated medium from recycled old corrugated containers (OCC) pulp. With the increase in population, rise of consumption rate and start of new paper production...

The mechanical (tensile strength and modulus, bending strength and modulus), humidity (water absorption and thickness swelling) and biodegradability properties of wood-plastics produced from polypropylene and poplar wood-flour (wood flour in three levels of 0, 20 and 25 percentage) in the presence...

In this research, Fir wood (Abies spp.) was thermally modified by retification process. The effect of modification process on physical and mechanical properties of fir wood were evaluated. For this aim, fir wood specimens with 12% moisture were modified in the steel tank with nitrogen gas medium at ...

The aim of this study was to energy efficient wood cement composite. Therewfore, unique wood- cement was produced by combining wood particles and fibers with cement and monolith. The investigated product consisted of wood-cement made from recycled wood fibers and poplar wood particle with the...

Pyrolysis acid or wood vinegar is a dark liquid derived from the condensation of steam and smoke emitted by thermal pyrolysis of wood or any other lignocellulosic material. In this study, a heating furnace was first designed to allow a precise temperature-time program. The wood from three different ...

The aim of this study was to investigate the effect of poplar wood impregnation with nanowollastonite and nano-wollastonite-styrene mixture on fire resistance and mechanical properties of wood/polymer. Populus deltoids wood samples were saturated using 4% nano-wollastonite and 75% methanolic...

Background and objectives: Nowadays, production of lightweight fiberboard with density lower than 500 kg/m3 gained a lot of interests for both non-structural and insulation applications in buildings. Environmental friendliness, lower price, recyclability, superior thermal and sound insulation, and...

The strength properties of medium corrugated board which is made using recycled pulp are always important. The aim of this study was to investigate the effect of bulking agent's addition and acetylated starch on the strength properties of corrugated board from neutral sulfite semi-chemical and old...

This study was carried out to compare the individual and combined effects of nanolignocelluloses (NLC), cationic polyacrylamide (CPAM), cationic starch (CS) and imported chemical long fiber (LF) in the manufacture of recycle liner and fluting paper for packaging. Individual treatments of OCC were...

The aim of this study was to evaluate the effect of cellulose nanofiber treatment on discoloration of historical papers. In this study, two types of cellulose nanofiber suspensions with a concentration of 1% by weight with water and ethanol were prepared. After treatment, the prepared samples were...