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Characterization of weathered wood–plastic composite ...

& 0183;& 32; Oct 01, 2007 & 0183;& 32;Attenuated total reflectance Fourier transform infrared ATR-FTIR spectroscopy was useful in showing the loss of wood particles from the surface after weathering. Contact angle was higher for the extruded and planed composites compared with the injection molded composites, and was shown using X-ray photoelectron spectroscopy XPS to be due to lubricant used as a processing aid.Cited by: 246

Using NIR and ATR-FTIR spectroscopy to rapidly detect ...

& 0183;& 32; This study aimed to rapidly and impartially detect compression wood through the use of attenuated total reflectance Fourier transform infrared spectroscopy ATR-FTIR and diffuse reflectance near infrared NIR spectroscopy. Compression wood and non-compression wood samples were obtained from young Pinus radiata D. Don trees grown in New Zealand. Longitudinal dimensional changes were …Cited by: 15

Discrimination of wood species using laser-induced ...

Aug 30, 2019 & 0183;& 32;A new method is proposed for the discrimination of wood species by combining near-infrared reflectance spectroscopy NIRS and laser-induced breakdown spec The method was applied to the analysis of 42 samples from six different species: Amburana cearensis, Copaifera lucens, Phyllocarpus riedelii, Cariniana legalis, Bowdichia virgilioides, and Aspidosperma pyricollum.Cited by: 1

Appli ion of NIR Reflectance Spectroscopy on Rapid ...

NIR spectroscopy was used to measure the moisture concentration of wood pellets. Pellets were conditioned to various moisture levels between 0.63% and 14.16% wet basis and the moisture concentration was verified using a standard oven method. Samples from various moisture levels were separated into two groups, as calibration and validation sets.Cited by: 6

Solar Reflectance Index - HDG Primer - HDG Building Materials

The Solar Reflectance Index for a sample of Thermory wood was tested to be 39.68 under medium wind conditions. Under low or high wind it was, 39.81 and 39.56 respectively. Note: for non-metal surfaces, SRI is insensitive to changes in convection coefficient rate of heat transfer from the surface to air induced by the air movement .

Using NIR and ATR-FTIR spectroscopy to rapidly detect ...

& 0183;& 32; This study aimed to rapidly and impartially detect compression wood through the use of attenuated total reflectance Fourier transform infrared spectroscopy ATR-FTIR and diffuse reflectance near infrared NIR spectroscopy. Compression wood and non-compression wood samples were obtained from young Pinus radiata D. Don trees grown in New Zealand. Longitudinal dimensional changes were measured …

Spectral sensitivity of thermally modified and unmodified wood

Full Article. Spectral Sensitivity of Thermally Modified and Unmodified Wood. Dace Cirule, a,b, * Anete Meija-Feldmane, a,b Edgars Kuka, a Bruno Andersons, a Nina Kurnosova, a Andis Antons, a and Henn Tuherm b The chemical structure of wood changes significantly during thermal modifi ion, significantly influencing the behaviour of wood during weathering.

Appli ion of NIR Reflectance Spectroscopy on Rapid ...

NIR reflectance spectroscopy works well for the analysis of moisture concentration wood pellets rapidly. The calibrations were obtained using partial least square regression analysis. NIR measurement is procedurally very simple, considerably reducing the time required for measurement compared to the standard oven methods.

Characterization and evaluation of wood strand composite ...

This study looked at the ability to use near infrared reflectance spectroscopy to non-destructively assess the load capacity and deflection of oriented strand construction board in the presence of phenol formaldehyde PF resin variation. The influence of PF resin on both mechanical properties was significant. Principal components regression was used to determine and rank statistically ...

Characterization of weathered wood–plastic composite ...

& 0183;& 32; Attenuated total reflectance Fourier transform infrared ATR-FTIR spectroscopy was useful in showing the loss of wood particles from the surface after weathering.

Diffuse reflectance spectra and optical properties of some ...

Jul 05, 2018 & 0183;& 32;The reliability and utility of diffuse reflectance spectra are briefly but critically reviewed. The results of measurements of diffuse reflectance over the wavelength range 200 < λ < 2500 nm are reported for w& 252;stite, magnetite, hematite, maghemite, ilmenite, ulv& 246;spinel, and α-FeO & 183; OH goethite , β-FeO 7sd OH, γ-FeO & 183; OH lepidocrocite , and δ-FeO & 183; OH.

PDF Characterization of weathered wood-plastic composite ...

rently over 30 decking manufacturers on the market, and WPCs are predicted to have 25% of the market by 2009 1 . WPC lumber is promoted as a lower-maintenance alternative comparedwith solid wood. WPCsare often seen as green com-posites, the wood is a renewable component sourced from a waste stream and the entire composite can be recyclable

wood decking reflectance

deck fencing in cyprus,inexpensive plastic wood for boardwalk deck,garden . grove decking ,wood plastic laminate decking,solar reflectance for wood decks Leed Product Data - Tile Tech Pavers Our Cool-Roof pavers utilize a high reflective value and low emissivity rate resulting in a high Solar Reflectance …

PDF ASSESSMENT OF CHROMOPHORES IN CHEMICALLY …

treated and aged wood colour was analyzed by UV-Vis diffuse reflectance spectroscopy UV-Vis DR in the range of wavelengths 200-600 nm. UV-Vis DR spectra were recorded for early wood on the tangential cross section of the plywood 10 & 215; 10 mm and thickness about 1mm samples, using a JASCO V-560

PDF Journal of Physics: Conference Series PAPER OPEN ACCESS ...

This article discusses the appli ion of Raman spectroscopy for identifi ion of wood species. Use of Raman spectroscopy allows increasing the certainty of determining the type of wood compared to the analysis of spectra of diffuse reflectance. Raman spectrums of different wood samples when irradiated by laser radiation are shown.

PDF Nondestructive estimation of wood chemical composition of ...

NIR spectroscopy can be used 10 estimate the chemical composition of radial wood sections, in addition to tracheid length, coarseness, density, MFA, stiffness, and tracheid wall thickness, then its value as a nondestructive tool for the rapid estimation of wood properties will be greatly enhanced. Therefore,

A Review of Band Assignments in near Infrared Spectra of ...

& 0183;& 32; Band assignment is an interesting and important part of spectroscopy that allows conclusions to be drawn on the chemistry and physico–chemical properties of samples. To summarise current knowledge on this topic, 70 years of NIR band assignment literature for wood and wood components were reviewed.

Monitoring decay of black gum wood Nyssa sylvatica ...

& 0183;& 32; Abstract diffuse reflectance infrared spectroscopy DRIFT and elemental analysis were employed to monitor biodegradation of black gum wood Nyssa sylvatica during growth of the shiitake mushroom Lentinula edodes . Black gum was decayed for up to 4.3 years by L. edodes, during which time it was sampled at 19, 31, and 52 months.

Determination of airborne wood dust in Button samples by ...

& 0183;& 32; The diffuse reflectance infrared Fourier transform spectroscopy DRIFTS analysis technique was applied to the determination of wood content of 181 inhalable dust samples geometric mean concentration: …

Fast Pyrolysis of Wood for Biofuels: Spatiotemporally ...

& 0183;& 32; Fast Pyrolysis of Wood for Biofuels: Spatiotemporally Resolved Diffuse Reflectance In situ Spectroscopy of Particles. Alex D. Paulsen. University of Massachusetts Amherst, Department of …

PDF Assessment of laser induced breakdown spectroscopy LIBS ...

spectroscopy LIBS technique to determine the level of residual CCA preservative in reclaimed decking was assessed in this experimental pilot study. Control specimens at treatment levels of 0, …

Laurence R. Schimleck's research works Oregon State ...

& 0183;& 32; Wood extractives are considered the major factor determining the natural durability of wood. Attenuated total reflectance-Fourier transform infrared ATR-FTIR spectroscopy was assessed for rapid...

Modeling color and chemical changes on normal and red ...

& 0183;& 32; Mar 01, 2015 & 0183;& 32;Concerning the spectral changes as function of irradiation time, reflectance decreases markedly in normal wood, varying from 0.4 at time 0 to 0.1 after 504 h of exposure, in agreement with …

Mid-infrared Diffuse Reflectance Spectroscopy for the ...

& 0183;& 32; Jan 27, 2001 & 0183;& 32;Soil samples were analyzed conventionally and by mid-infrared diffuse reflectance spectroscopy for total C, total N, pH, and measures of biological activity. Ground, non KBr diluted, …

Teak Wood Solar Reflectance - Plastic Wood Decking

sri value of wood roof decking - the best outdoor deck manufacturer Solar reflective Cool-Roof Pavers are ideal for creating functional and attractive rooftop, terraces, . What is the accepted SRI value for Seven Trust or Teak decking?

ground reflectance factor of wooden decking

‎ PDF ‎ Decking Install Guide TimberTech. 1 Sep 2012 Color and Grain Patterns – Our wood-plastic composite deck boards are Planks Needed 10% Scrap Factor = Final Number of Planks external …

Trees4Future - BOKU Wood quality and tree physiology platform

BOKU Wood quality and tree physiology platform. Technical information Practicalities. Type of facility: Laboratory equipment for assessing wood quality and tree physiology Keywords: infrared spectroscopy, multivariate spectra analysis, microscopy, anatomy, plant physiology, hydraulic conductivity, cavitation, drought resistance, wood properties, wood density, wood quality, wood …

PDF SIMPLIFIED DETERMINATION OF LIGNIN CONTENT IN HARD …

FTIR spectroscopy was employed using the Spectrum One FTIR spectrometer from Perkin Elmer Waltham, MA with a diamond attenuated total reflectance ATR attachment. Spectra from 4000 to …

Chemical structure of arsenic and chromium in CCA-treated ...

& 0183;& 32; X-ray Absorption Spectroscopy XAS was used to evaluate the chemical structure of As and Cr in three samples of CCA-treated materials: newly treated wood, aged wood 5 years as decking , and dislodgeable residue from aged 1-4 years as decking CCA-treated wood…

Determination of Lignin Content in Norway Spruce Wood by ...

& 0183;& 32; Jan 01, 2011 & 0183;& 32;Although it might be thought that the determination of lignin content in wood by near infrared NIR spectroscopy is well known and has been used for several years, model statistics …

Weathering Characteristics of Wood Plastic Composites ...

This study investigated weathering performance of an HDPE wood plastic composite reinforced with extracted or delignified wood flour WF . The wood flour was pre-extracted with three different …

PDF Classifi ion of the hot air heat treatment degree of ...

mal variated NIR reflectance spectra of specimens treated at 160–220 & 176;C for 12 h. At a higher degree of heat treatment 210 and 220 & 176;C , preprocessed reflectance spectra were lo ed at the relatively high position of 1400–2000 nm. The effect of heat treatment on a wood …

Mid-infrared diffuse reflectance spectroscopic examination ...

Fires in terrestrial ecosystems produce large amounts of charcoal that persist in the environment and represent a substantial pool of sequestered carbon in soil. The objective of this research was to investigate the effect of charring on mid-infrared spectra of materials likely to be present in forest fires in order to determine the feasibility of determining charred organic matter in soils.

solar reflectance index of timber decking

woods solar reflectance index - wpc floor manufacturer. Products 69 - 81 Solar Reflectance for Walls - Concrete Construction A composite index called the solar reflectance index SRI is used by the U.S. Green for backyard & 183; composite decking consumer reports & 183; synthetic timber in malaysia

Nondestructive estimation of wood chemical composition of ...

Nondestructive estimation of wood chemical composition of sections of radial wood strips by diffuse reflectance near infrared spectroscopy. Wood Sci. Technol., DOI 10.1007/s00226-006-0085-6; Posted Date: January 13, 2007; Modified Date: February 14, 2007

PDF Classifi ion of the hot air heat treatment degree of ...

mal variated NIR reflectance spectra of specimens treated at 160–220 & 176;C for 12 h. At a higher degree of heat treatment 210 and 220 & 176;C , preprocessed reflectance spectra were lo ed at the relatively high position of 1400–2000 nm. The effect of heat treatment on a wood substance remark-ably appeared at lower wavelengths in the NIR region.

solar reflectance index wood deck

This further reduces the influence of the wood decking in contributing to the. woods solar reflectance index - wpc floor manufacturer Products 69 - 81 Home > Solution > woods solar reflectance index. WPC Deck Board. Solar Reflectance for Walls - Concrete Construction. 28 Mar 2011 .

PDF ARTICLE IN PRESS

Near-infrared spectroscopy was used to determine the degree of treatment in Scots pine solid wood modified with in situ cured furfuryl alcohol. The treatment range was approximately 0 to 30% weight gain relative to wood dry mass. Reflectance near-infrared spectra were recorded – using a

Characterization and evaluation of wood strand composite ...

Feb 05, 2013 & 0183;& 32;NIR spectroscopy ability for predicting the load While not appropriate for the computation of design capacity and displacement under typical adhesive values, near infrared reflectance NIR spectroscopy is loadings in OSB with various PF contents and to one method that can be used to assess Seven Trust material and interpret multivariate models for predicting the resin engineered wood product …

Searching for Natural Resistance through Infrared Spectroscopy

“The variability in wood resistance to fungi and insects poses problems in the current durability classifi ions. With the recent development in infrared spectroscopy and powerful statistical methods for spectral data analysis, there is potential to create a rapid, non-destructive tool to access wood durability,” stated Lipeh.

Mid-infrared Diffuse Reflectance Spectroscopy for the ...

& 0183;& 32; Jan 27, 2001 & 0183;& 32;Soil samples were analyzed conventionally and by mid-infrared diffuse reflectance spectroscopy for total C, total N, pH, and measures of biological activity. Ground, non KBr diluted, samples n = 180 from experimental plots two lo ions, three repli e plots, under plow and no-till practices, three rates of N fertilizer, and from five depths were scanned from 4000 to 400 cm-1 4-cm …

Determination of Thermal Properties and Morphology of ...

& 0183;& 32; Addition of coupling agent significantly improved the flexural strength P=0.0001 . Similar results were also reported in the flexural strength of other wood flour filled thermoplastic composites 37–39 . For polyolefin-based plastic lumber decking boards, ASTM D 6662 2001 standard requires the minimum flexural strength of 6.9 MPa 1,000 psi .

Photochemical Behavior of Wood Based Materials SpringerLink

Nov 24, 2016 & 0183;& 32;A new methodology using Fourier transform infrared spectroscopy ... for conversion of softwood species into self-antibacterial and sustainable wood materials e.g. for decking and fencing ... S.: Modeling color and chemical changes on normal and red heart beech wood by reflectance spectrophotometry, Fourier Transform Infrared spectroscopy and ...

Predicting Extractives and Lignin Contents in Eucalyptus ...

& 0183;& 32; Aug 24, 2007 & 0183;& 32;Lignin and extractive content are important determinants of the pulping quality of wood. Determination of extractive and lignin content using traditional chemical methods is a costly and time‐consuming process. Near infrared reflectance NIR analysis offers a low cost alternative for prediction of wood quality.

Monitoring Decay of Black Gum Wood Nyssa Sylvatica ...

& 0183;& 32; Abstract diffuse reflectance infrared spectroscopy DRIFT and elemental analysis were employed to monitor biodegradation of black gum wood Nyssa sylvatica during growth of the shiitake mushroom Lentinula edodes . Black gum was decayed for up to 4.3 years by L. edodes, during which time it was sampled at 19, 31, and 52 months. Biodegraded woods displayed increased % O w/w and …

Spatiotemporally resolved diffuse reflectance in situ ...

Paulsen, AD, Hough, BR, Williams, CL, Teixeira, AR, Schwartz, DT, Pfaendtner, J and Dauenhauer, PJ 2014, Spatiotemporally resolved diffuse reflectance in situ spectroscopy DRiSP of pyrolyzing wood particles. in Catalysis and Reaction Engineering Division 2014 - Core Programming Area at the 2014 AIChE Annual Meeting. vol. 1, AIChE, Catalysis and ...

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