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Fiber Characteristics and Bonding Strength of Poplar Refiner-Chemical Preconditioned Alkaline Peroxide Mechanical Pulp Fractions
- Source :
- BioResources, Vol 10, Iss 2, Pp 3702-3712 (2015)
- Publication Year :
- 2015
- Publisher :
- BioResources, 2015.
-
Abstract
- In China, alkaline peroxide mechanical pulping performed with refiner-chemical preconditioning (P-RC APMP) is well known to produce fiber with high bulk, opacity, and light scattering coefficient but weak bonding and strength properties. In this study, the characteristics of different P-RC APMP fiber fractions were investigated, and their effects on bonding strength properties were determined. The results showed that there was only 5.8% R30 fiber fraction and 14.1% P100/R200 fiber fraction, and the specific surface area increased from R30 to P100/R200. The tensile index increased by 51.85% and the bonding index increased by 15.35%, when the fibers were changed from the R30 fraction to the P100/R200 fraction. The short fiber fraction (P100/R200 fraction) had smaller fiber length and coarseness but larger specific surface area and greater surface charge density than the long fiber fraction (R30 fraction). The fiber specific surface area and surface charge density made significant contributions to the bonding capacity, whereas fiber coarseness and length were negatively correlated with the tensile index.
- Subjects :
- Fiber fractions
Environmental Engineering
Materials science
Opacity
lcsh:Biotechnology
Pulp (paper)
Poplar P-RC APMP
Fiber characteristics
Charge density
Bioengineering
Alkaline peroxide
engineering.material
Light scattering
Bonding strength properties
Bonding strength
lcsh:TP248.13-248.65
Specific surface area
Ultimate tensile strength
engineering
Composite material
Waste Management and Disposal
Subjects
Details
- ISSN :
- 19302126
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- BioResources
- Accession number :
- edsair.doi.dedup.....82dbde9c760d315f0021989cd1271924