Abstract
Cellulose fibers were obtained from corncob by using microwave-assisted chemical treatments (microwave-assisted alkaline pretreatment and microwave-assisted bleaching). These treatments efficiently removed the hemicellulose and lignin from the original corncob and increased the cellulose fiber content. The morphology, chemical structure, degree of crystallinity and thermal degradation characteristics of the resultant cellulose fibers were studied by using field emission scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction and thermogravimetric analysis. These microwave-assisted chemical treatments decreased the diameter of the cellulose fibers from 25–125 µm to 10–20 µm. The crystallinity of the corncob cellulose fibers increased from 32.7% to 73% due to the chemical treatments. The degradation temperature of the cellulose fibers was >260°C. The cellulose fibers obtained from these treatments can be used as biocomposites in reinforced polymer manufacturing.
Acknowledgments
This research was supported by Beijing Municipal Science and Technology Commission Project (Z121100001312010), High Technology Research and Development Program of China (2011AA100802), Science and Technology Support Project of China (2013BAD10B03), and Commonwealth Guild Agricultural Scientific Research Program of China (201003077).
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©2014 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Grinding Characteristics of Black Soybeans (Glycine max) at Varied Moisture Contents: Particle Size, Energy Consumption, and Grinding Kinetics
- Design and Development of Low-Cost Makhana Grading and Roasting Machine
- Investigation of Consecutive Fouling and Cleaning Cycles of Ultrafiltration Membranes Used for Whey Processing
- Kinetic Models of Evaporation and Total Phenolics Degradation during Pomegranate Juice Concentration
- Predicting Sorption Isotherms and Net Isosteric Heats of Sorption of Maize Grains at Different Temperatures
- Estimating Some Physical Properties of Sour and Sweet Cherries Based on Combined Image Processing and AI Techniques
- Functional Properties of Re-fabricated Rice as Affected by Die During Extrusion Process
- Isolation and Characterization of Corncob Cellulose Fibers using Microwave-Assisted Chemical Treatments
- Physical Properties of Red Guava (Psidium guajava L.) Pulp as Affected by Soluble Solids Content and Temperature
- Levels of Fluoride in the Ethiopian and Imported Black Tea (Camellia sinensis) Infusions Prepared in Tap and Fluoride-Rich Natural Waters
- Process Optimization and Quality Analysis of Carambola (Averrhoa carambola L.) Wine
- Physical Properties of Gluten-Free Bread Made of Corn and Chickpea Flour
- In Vitro Anti-tumor Effects of Chemically Modified Polysaccharides from Cherokee Rose Fruit
- Optimization of Ohmic Heating of Fish Using Response Surface Methodology
- Response Surface Modeling for Optimization of Textural and Color Characteristics of Dried Grapes
- Response Surface Analysis for Preparation of Modified Flours using Twin Screw Extrusion Cooking
- Modeling the Effects of the Quantity and Particle Size of Wheat Bran on Some Properties of Bread Dough using Response Surface Methodology
- Testing of a Condensation-type Heat Pump System for Low-temperature Drying Applications
- Comparison of Chemical, Textural and Organoleptic Properties of Pastry Sheets with Two Different Additives
Artikel in diesem Heft
- Frontmatter
- Grinding Characteristics of Black Soybeans (Glycine max) at Varied Moisture Contents: Particle Size, Energy Consumption, and Grinding Kinetics
- Design and Development of Low-Cost Makhana Grading and Roasting Machine
- Investigation of Consecutive Fouling and Cleaning Cycles of Ultrafiltration Membranes Used for Whey Processing
- Kinetic Models of Evaporation and Total Phenolics Degradation during Pomegranate Juice Concentration
- Predicting Sorption Isotherms and Net Isosteric Heats of Sorption of Maize Grains at Different Temperatures
- Estimating Some Physical Properties of Sour and Sweet Cherries Based on Combined Image Processing and AI Techniques
- Functional Properties of Re-fabricated Rice as Affected by Die During Extrusion Process
- Isolation and Characterization of Corncob Cellulose Fibers using Microwave-Assisted Chemical Treatments
- Physical Properties of Red Guava (Psidium guajava L.) Pulp as Affected by Soluble Solids Content and Temperature
- Levels of Fluoride in the Ethiopian and Imported Black Tea (Camellia sinensis) Infusions Prepared in Tap and Fluoride-Rich Natural Waters
- Process Optimization and Quality Analysis of Carambola (Averrhoa carambola L.) Wine
- Physical Properties of Gluten-Free Bread Made of Corn and Chickpea Flour
- In Vitro Anti-tumor Effects of Chemically Modified Polysaccharides from Cherokee Rose Fruit
- Optimization of Ohmic Heating of Fish Using Response Surface Methodology
- Response Surface Modeling for Optimization of Textural and Color Characteristics of Dried Grapes
- Response Surface Analysis for Preparation of Modified Flours using Twin Screw Extrusion Cooking
- Modeling the Effects of the Quantity and Particle Size of Wheat Bran on Some Properties of Bread Dough using Response Surface Methodology
- Testing of a Condensation-type Heat Pump System for Low-temperature Drying Applications
- Comparison of Chemical, Textural and Organoleptic Properties of Pastry Sheets with Two Different Additives