Match!

Kinetic analysis of color changes in cellulose during heat treatment

Published on Apr 1, 2012in Journal of Wood Science1.523
· DOI :10.1007/s10086-011-1235-5
Miyuki Matsuo8
Estimated H-index: 8
(Kyoto University),
Kenji Umemura23
Estimated H-index: 23
(Kyoto University),
Shuichi Kawai24
Estimated H-index: 24
(Kyoto University)
Abstract
This paper deals with the kinetics of the color changes of cellulose during heat treatment. The color of cellulose heated at 90–180°C was measured by a spectrophotometer and expressed by CIELAB color parameters. The values of L* decreased and those of a*, b* and Δ E* ab increased at all the treatment temperatures. Several kinetic models, namely, the zero-order, first-order, second-order and autocatalytic model, were applied to the changes in the color values. Furthermore, the results of kinetic analysis using the best-fit model were compared to the results obtained from conventional kinetic models. It was suggested that the kinetic analysis using the best-fit model was the better way to accurately predict color changes during heat treatment. The values of apparent activation energy calculated from the changes of L*, a*, b* and Δ E* ab were 125, 124, 118 and 120 kJ/mol, respectively. These values were similar to the reported values calculated from other chemical or mechanical properties.
  • References (33)
  • Citations (24)
📖 Papers frequently viewed together
42 Citations
16 Citations
35 Citations
78% of Scinapse members use related papers. After signing in, all features are FREE.
References33
Newest
#1Seiji Matsuoka (Kyoto University)H-Index: 6
#2Haruo Kawamoto (Kyoto University)H-Index: 35
Last. Shiro Saka (Kyoto University)H-Index: 51
view all 3 authors...
Abstract Thermal discoloration of cellulose (Avicel PH-101 and Whatman No. 42 filter paper) was studied in N 2 at 160–280 °C with glycerol-treated and NaBH 4 -reduced samples, to understand the role of the reducing end. Thermal discoloration of glycerol-treated Avicel PH-101, in which some of the reducing ends were converted into glycosides (non-reducing ends), was suppressed compared with the original cellulose, and the level of suppression was directly related to the extent of glycosylation of...
20 CitationsSource
#1Seiji Matsuoka (Kyoto University)H-Index: 6
#2Haruo Kawamoto (Kyoto University)H-Index: 35
Last. Shiro Saka (Kyoto University)H-Index: 51
view all 3 authors...
Abstract Thermal glycosylation and degradation reactions of cellulose (Avicel PH-101) were studied in the presence or absence of alcohols (glycerol, mannitol, 1,2,6-hexanetriol, 3-phenoxy-1,2-propanediol, and 1-tetradecanol) under N 2 at 60–280 °C. In the presence of glycerol (heating time, 10 min), the reducing ends were converted into glycosides when the temperature of the glycerol was >140 °C without the addition of any catalysts. A temperature of 140 °C is close to that required for the init...
20 CitationsSource
#1Tomasz Łojewski (Jagiellonian University)H-Index: 16
#2Tomasz Sawoszczuk (Jagiellonian University)H-Index: 3
Last. Joanna Łojewska (Jagiellonian University)H-Index: 14
view all 6 authors...
Non-destructive methods of sampling during the physicochemical studies of historical objects such as old books and manuscripts seem to be an obvious choice. Since furfural has been shown to be one of the most abundant gaseous products of cellulose degradation, it can be considered as a convenient marker of degradation progress. The number of quantitative data concerning correlations between the emission of furfural and physicochemical and mechanical properties of paper is rather scarce in the li...
22 CitationsSource
#1Miyuki Matsuo (Kyoto University)H-Index: 8
#2Misao Yokoyama (Kyoto University)H-Index: 5
Last. Shuichi Kawai (Kyoto University)H-Index: 24
view all 6 authors...
42 CitationsSource
#1Marcos M. González-Peña (UBC: University of British Columbia)H-Index: 5
#2Michael Hale (Bangor University)H-Index: 13
Colour evolution and colour changes were analysed from surface images of small specimens of three thermally-modified timber species using the CIEL*a*b* colour space. Upon heat exposure, the wood substance became orange and then approached grey irrespective of species; this was accompanied by a steady reduction in lightness. Colour changes were similar in the three woods at any given level of heat-induced weight loss (WL), whilst changes in the three coordinates of the CIEL*a*b* space in function...
64 CitationsSource
#1Paolo CalviniH-Index: 9
#2Andrea Gorassini (University of Udine)H-Index: 7
Last. Antonio Luigi MerlaniH-Index: 2
view all 3 authors...
The kinetics of cellulose degradation was analysed by means of a two-stage model, characterised by an autoretardant and autocatalytic regime, later tempered by the consumption of glycosidic bonds in the amorphous regions. The proposed model explains the effects on the kinetic equations of different modes of ageing (acid hydrolysis, ageing in ventilated oven or sealed vessels), initial oxidation of cellulose and experimental procedures (with or without reduction of oxidised groups). The autoretar...
72 CitationsSource
#1H. Z. Ding (University of Manchester)H-Index: 2
#2Zhongdong Wang (University of Manchester)H-Index: 22
Cellulose degradation is usually characterized in terms of either the chain scission number or the scission fraction of cellulose unit as a function of degree of polymerisation (DP) and cellulose degradation evolution equation is most commonly described by the well known Ekenstam equations. In this paper we show that cellulose degradation can be best characterized either in terms of the percentage DP loss or in terms of the percentage tensile strength (TS) loss. We present a new cellulose degrad...
56 CitationsSource
#1J. Łojewska (Jagiellonian University)H-Index: 12
#2Mauro MissoriH-Index: 8
Last. A. Congiu Castellano (Sapienza University of Rome)H-Index: 15
view all 7 authors...
Cellulose undergoing accelerated hydrothermal ageing gives a pattern of carbonyl groups whose vibrational modes were observed in UV/VI/NIR, FTIR and Raman spectra. Indirectly their presence in degraded samples was observed traced by the changes in the degree of polymerization (DP) and acidity (pH). Conjugated ketonic groups found in FTIR and Raman spectra after accelerated ageing were correlated to the chromophores detected by UV/VIS. A simple model describing the formation of chromophores was p...
24 CitationsSource
#1Martin Müller (CAU: University of Kiel)H-Index: 33
#2Bridget M. Murphy (CAU: University of Kiel)H-Index: 15
Last. J. Gunneweg (HUJI: Hebrew University of Jerusalem)H-Index: 10
view all 6 authors...
Archaeological cellulose textile fibres (linen and cotton) from caves in the Dead Sea region were investigated using synchrotron X-ray microdiffraction. The degradation of the up to 2100 year old fibres was found to depend on the climatic conditions at the place of storage. The size and the lattice parameters of the cellulose nanocrystals (microfibrils) in the fibres change upon degradation; these parameters are shown to be strongly correlated, leading to a microscopic description of the degrada...
14 CitationsSource
#1Hongzhi Z. Ding (University of Manchester)H-Index: 1
#2Zhongdong Wang (University of Manchester)H-Index: 22
35 CitationsSource
Cited By24
Newest
#1Hyun Chan Kim (IIT: Inha University)H-Index: 8
#2Debora Kim (IIT: Inha University)H-Index: 1
Last. Jaehwan Kim (IIT: Inha University)H-Index: 38
view all 5 authors...
Long filament made with nanocellulose has been researched due to its eminent mechanical and physical properties for next generation of natural fiber reinforced polymer composites. Wet spinning process for long filament fabrication in conjunction with stretching method has advantages of high efficiency and low-cost. To fabricate homogeneous and strong cellulose nanofiber filament, this paper experimentally investigates the process parameters, including spinning speed, pre-dry temperature and inne...
1 CitationsSource
#1Takahiro Tsuji (University of Toyama)H-Index: 1
#2Koji Mochizuki (Hoshi University)
Last. Yoshinori Onuki (University of Toyama)H-Index: 15
view all 7 authors...
Abstract The time–temperature superposition principle (TTSP) was applied to the destabilization kinetics of a pharmaceutical emulsion. The final goal of this study is to predict precisely the emulsion stability after long-term storage from the short-period accelerated test using TTSP. As the model emulsion, a cream preparation that is clinically used for the treatment of pruritus associated with chronic kidney disease was tested. After storage at high temperatures ranging from 30 to 45 °C for de...
Source
#1Li Yan (NWAFU: Northwest A&F University)H-Index: 2
#2Jeffrey J. Morrell (OSU: Oregon State University)H-Index: 20
The effects of borate and glycerol impregnation of Douglas-fir heartwood prior to open-air oven thermal modification at 160–200 °C for 2–4 h on wood color were measured. These materials were used to analyze the effects of modifying agents on thermal decomposition of wood by color nondestructive assessments. Kinetic analysis using time–temperature superposition and the horizontal shift factor were employed to quantify color changes. Lightness values were significantly affected by heating time and...
Source
#1Yanxia WeiH-Index: 2
#2Peng ZhangH-Index: 2
Last. Yongming FanH-Index: 6
view all 6 authors...
The kinetics of color changes in larch sapwood and heartwood during heat treatment were investigated in this study in order to determine if the process of color change that occurs in the surface of wood can be regulated. Wood samples were heated at 90, 110, 130, and 150 °C in an oven, vacuum, and in an oven subjected to saturated steam for 3, 6, 9, and 12 h each. The results of the color measurement showed that the values of L* (lightness) and ΔE* (total color difference) decreased and increased...
2 CitationsSource
#1Tetsuya Inagaki (Nagoya University)H-Index: 11
#2Yuuki Asanuma (Nagoya University)H-Index: 1
Last. Satoru Tsuchikawa (Nagoya University)H-Index: 21
view all 3 authors...
We selectively assessed the thermal and hygrothermal treatment times of duplex heat-treated samples from the softwood hinoki cypress (Chamaecyparis obtusa) and the hardwood Japanese zelkova (Zelkova serrata) using near-infrared (NIR) spectroscopy with principal component analysis (PCA) and spectral-kinetic analysis. Wood samples from each species were thermally or hygrothermally treated at 120, 130, 150, and 180 °C, and the second-derivative spectra of these samples in the 6300–5450 cm−1 range, ...
2 CitationsSource
Last. František Kačík (CULS: Czech University of Life Sciences Prague)H-Index: 10
view all 4 authors...
This study investigates the effects of wood weathering on changes in its macroscopic and colour characteristics in connection with changes in its molecular and anatomical structure. Seven hardwoods suitable for outdoor architecture—bangkirai, cumaru, cumaru rosa, ipe, jatoba, kusia, and massaranduba—were exposed to the exterior out of ground contact for 1–36 months according to EN 927-3, and for 1–12 weeks in Xenotest with water spraying according to partly modified EN 927-6. With prolonged weat...
4 CitationsSource
#1Jeremy Astruc (Université de Sherbrooke)H-Index: 1
#2Malladi Nagalakshmaiah (Université de Sherbrooke)H-Index: 6
Last. Mathieu Robert (Université de Sherbrooke)H-Index: 13
view all 6 authors...
Abstract In this study, cellulose-II nanospheres (CNS) were extracted from flax fibers and analyzed to understand the crystalline, functional and morphological properties by means of X-ray Diffraction (X-RD), Fourier Transform Infrared (FT-IR) and Scanning Electron Microscopy (SEM). FT-IR and SEM results indicate the effective removal of extractives, lignin and hemicellulose. X-RD results clearly show the transformation from cellulose-I to cellulose-II during the mercerization process. Further, ...
6 CitationsSource
#1Silje Molnes (University of Stavanger)H-Index: 4
#2Kristofer Paso (NTNU: Norwegian University of Science and Technology)H-Index: 20
Last. Kristin Syverud (NTNU: Norwegian University of Science and Technology)H-Index: 22
view all 4 authors...
Cellulose nanocrystals (CNC) are currently being investigated as potential additives for enhanced oil recovery (EOR). Presented in this paper is a study investigating the effects of different physical and chemical environments that low concentration CNC dispersions may be subjected to at oil reservoir conditions. Different concentrations of CNC dispersed in de-ionized water and in a 1000 ppm NaCl brine were subjected to variations in pH and temperature, and the results showed that the dispersion...
6 CitationsSource
#1Guangming CaiH-Index: 7
#2Zhenglin XuH-Index: 2
Last. Xungai Wang (Deakin University)H-Index: 50
view all 4 authors...
A water and dye-free heat treatment method was used to color wool fibers. The heat effect changed wool fibers to different colors from white in a nitrogen atmosphere. The influences of heating temperature and time on the colors of wool were investigated and the mechanical property of colored wool fibers was evaluated. The color strength of wool fibers increased as heat treatment temperature and time increased. The tensile strength retention rate of wool fiber was relatively high (≥90 %) when the...
1 CitationsSource
#1Ellinor Bævre Heggset (Paper and Fibre Research Institute)H-Index: 12
#2Gary Chinga-Carrasco (Paper and Fibre Research Institute)H-Index: 25
Last. Kristin Syverud (NTNU: Norwegian University of Science and Technology)H-Index: 22
view all 3 authors...
Abstract Cellulose nanofibrils (CNF) have potential as rheology modifiers of water based fluids, e.g. drilling fluids for use in oil wells or as additives in injection water for enhanced oil recovery (EOR). The temperature in oil wells can be high (>100 °C), and the retention time long; days for drilling fluids and months for EOR fluids. Hence, it is important to assess the temperature stability over time of nanocellulose dispersions to clarify their suitability as rheology modifiers of water ba...
22 CitationsSource