Rapid determination of biomass and polypropylene in three types of wood plastic composites (WPCs) using FTIR spectroscopy and partial least squares regression (PLSR)
-
Gaiyun Li
,
Wanli Lao
Abstract
The biomass/plastic ratio in wood plastic composites (WPCs) has been evaluated because of the great practical importance of this topic. To this purpose, FTIR spectra of 59 polypropylene (PP)-based WPCs from three biomass species (Chinese fir, poplar, and bamboo) were recorded and the spectral dates were evaluated by means of the partial least squares regression (PLSR) approach aiming at the prediction of the biomass/PP ratio in the WPCs. The results of the full cross-validation of the data showed that first derivative spectra corrected by standard normal variate (SNV) yielded the optimal model for prediction of the WPC composition. For both biomass and PP prediction, the coefficients of determination (R2) of external validation were above 0.94. The standard errors of prediction (SEP) were between 1.38 and 1.39. And the ratios of performance to deviation (RPD) were about 4.20. The relative prediction errors in this context were lower than ±6%. FTIR combined with PLSR is a useful tool for a rapid and reliable estimation of the biomass and PP contents in different types of PP-based WPCs.
Acknowledgments
This work was supported by Special funds for Quality inspection research in Public Interest (2012104006) from the General Administration of Quality Supervision, Inspection and Quarantine of China. In addition, we would like to express our sincere thanks to Prof. O. Faix (editor in chief of Holzforschung) for his valuable suggestions and revisions.
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©2015 by De Gruyter
Articles in the same Issue
- Frontmatter
- Review Articles
- A large-scale test set-up for measuring VOC emissions from wood products under laboratory conditions in simulated real rooms
- Industrial waste water for biotechnological reduction of aldehyde emissions from wood products
- Original Articles
- Light scattering characterization of lignosulfonate structure in saline solutions
- Differences in wood properties of Picea abies L. Karst. in relation to site of provenance and population genetics
- Rapid determination of biomass and polypropylene in three types of wood plastic composites (WPCs) using FTIR spectroscopy and partial least squares regression (PLSR)
- Thermal modification of Southern pine combined with wax emulsion preimpregnation: effect on hydrophobicity and dimensional stability
- Mixed-mode fracture toughness of bond lines of PRF and PUR adhesives in European beech wood
- Effect of specimen dimension and pre-heating temperature on supercritical CO2 dewatering of radiata pine sapwood
- Sound absorption of wood-based materials
- Threshold for ion movements in wood cell walls below fiber saturation observed by X-ray fluorescence microscopy (XFM)
- Oxygen plasma treatment of bamboo fibers (BF) and its effects on the static and dynamic mechanical properties of BF-unsaturated polyester composites
- A combined view on composition, molecular structure, and micromechanics of fungal degraded softwood
- Morphological changes induced in wood samples by aqueous NaOH treatment and their effects on the conversion of cellulose I to cellulose II
- Young’s modulus and shear modulus of solid wood measured by the flexural vibration test of specimens with large height/length ratios
- Effects of cell wall ultrastructure on the transverse shrinkage anisotropy of Scots pine wood
- Short Note
- Reacted copper(II) concentrations in earlywood and latewood of micronized copper-treated Canadian softwood species
Articles in the same Issue
- Frontmatter
- Review Articles
- A large-scale test set-up for measuring VOC emissions from wood products under laboratory conditions in simulated real rooms
- Industrial waste water for biotechnological reduction of aldehyde emissions from wood products
- Original Articles
- Light scattering characterization of lignosulfonate structure in saline solutions
- Differences in wood properties of Picea abies L. Karst. in relation to site of provenance and population genetics
- Rapid determination of biomass and polypropylene in three types of wood plastic composites (WPCs) using FTIR spectroscopy and partial least squares regression (PLSR)
- Thermal modification of Southern pine combined with wax emulsion preimpregnation: effect on hydrophobicity and dimensional stability
- Mixed-mode fracture toughness of bond lines of PRF and PUR adhesives in European beech wood
- Effect of specimen dimension and pre-heating temperature on supercritical CO2 dewatering of radiata pine sapwood
- Sound absorption of wood-based materials
- Threshold for ion movements in wood cell walls below fiber saturation observed by X-ray fluorescence microscopy (XFM)
- Oxygen plasma treatment of bamboo fibers (BF) and its effects on the static and dynamic mechanical properties of BF-unsaturated polyester composites
- A combined view on composition, molecular structure, and micromechanics of fungal degraded softwood
- Morphological changes induced in wood samples by aqueous NaOH treatment and their effects on the conversion of cellulose I to cellulose II
- Young’s modulus and shear modulus of solid wood measured by the flexural vibration test of specimens with large height/length ratios
- Effects of cell wall ultrastructure on the transverse shrinkage anisotropy of Scots pine wood
- Short Note
- Reacted copper(II) concentrations in earlywood and latewood of micronized copper-treated Canadian softwood species
