Extraction of hemicelluloses prior to pulping and conversion of the extracted hemicelluloses to other bioproducts could provide additional revenue to traditional pulp and paper industries. The effect of hemicelluloses pre-extraction with a hydrothermal (HT) process on Pinus radiata chemimechanical pulp (CMP) properties was investigated in this study. The HT extraction resulted in a release of 7...

For the identification of small to large wood samples and various types of composites that may not provide enough of all surfaces necessary to reveal diagnostic characteristics, such as sawdust, decayed wood fragments, archeological wood, and even large wood samples, morphological and anatomical characteristics of vessels are very useful. In this research, morphological and anatomical character...

Wood material is the most critical indoor and outdoor building element that has not changed since ancient times. Previous studies have determined mechanical properties of tree species with low industrial importance, such as poplar wood, can be improved when they are subjected to densification process. In addition, it been in lamination process a positive effect on wood material. This study aime...

This paper is the first in a three-part series investigating the mechanical properties of loblolly pine fibers. This paper outlines the experimental method and subsequent variation of latewood fiber mechanical properties in relation to tree position. Subsequent papers will deal with differences between earlywood and latewood fibers and effect of juvenility and tree height on global fiber proper...

The aim of the present study was to investigate effects fiber content and then silane treatment on mechanical performance natural composites recycled acrylonitrile–butadiene–styrene (ABS) provided by automotive sector. Wood palmyra fibers were used as fillers in 10% 20% composites. treated with N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane improve interfacial adhesion between polymer matrices....

A survey was conducted of US pulp and paper mills to characterize chip pile manage survey was developed by members of the TAPPI Fiber Raw Material Supply Commit tee December of 1999. There were a total of 80 re dents to the surve one sofhvood and one hard Chip transport to piles was Pile inventory method was volume to weight was predominate quality varied by region, with brightness losses being...

Carbon fiber reinforced plastic (CFRP) was used to adhesively reinforce Chinese fir (Cunninghamia lanceolata) wood specimens. This study examined the flexural static and creep performances of CFPR-reinforced wood composites that had been subjected to changes in moisture and stress levels. The major findings were as follows: 1) the cyclic creep was slightly lower for those specimens subjected to...

The obtaining and characterization of some polymeric eco-composites based on wood sawdust and natural rubber is presented. The natural rubber was cross-linked using the electron beam irradiation. The irradiation doses were of 75, 150, 300 and 600 kGy and the concentrations of wood sawdust were of 10 and 20 phr, respectively. As a result of wood sawdust adding, the physical and mechanical proper...

Abstract Medium-density fiberboard (MDF), a wood-based material that consists of tight random network wood fibers, deforms more than when exposed to water. For the first time, microscopic deformations MDF were tracked during swelling. A hygroscopic swelling setup imposing deform throughout tomographic acquisition was used coupled X-ray microtomography. An advanced reconstruction algorithm enabl...