Isolation and Characterization of Cellulose Fibers from Rice Straw and its Application in Modified Polypropylene Composites

2013 ◽  
Vol 52 (15) ◽  
pp. 1566-1573 ◽  
Author(s):  
Man Chen ◽  
Yonghong Ma ◽  
Yang Xu ◽  
Xiaolang Chen ◽  
Xinxing Zhang ◽  
...  
Cellulose ◽  
2011 ◽  
Vol 18 (2) ◽  
pp. 433-442 ◽  
Author(s):  
Wenshuai Chen ◽  
Haipeng Yu ◽  
Yixing Liu ◽  
Yunfei Hai ◽  
Mingxin Zhang ◽  
...  

2014 ◽  
Vol 10 (3) ◽  
pp. 427-436 ◽  
Author(s):  
Meng Li ◽  
Yan-Ling Cheng ◽  
Nan Fu ◽  
Dong Li ◽  
Benu Adhikari ◽  
...  

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.


2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Ngo Dinh Vu ◽  
Hang Thi Tran ◽  
Toan Duy Nguyen

Polypropylene (PP) based green composites containing 10, 20, 30, 40 and 50 wt% of cellulose fibers (CFs) which were extracted from rice straw were successfully prepared by melt blend method. The CFs washed with H2O2 after alkaline extraction showed lower water absorption than that not washed with H2O2. The thermal, mechanical, and biodegradation properties of composites were also investigated. The 10% weight loss temperature of the composites was decreased with the increasing CFs content, but all the composites showed over 300°C. Young’s modulus and flexural properties of PP were improved by blending PP with CFs. The pure PP showed no degradability, but the PP/CFs composites degraded from about 3 to 23 wt%, depending on CFs content after being buried in soil for 50 days. These PP/CFs composites with high thermal, mechanical properties and biodegradability may be useful as green composite materials for various environmental fields.


BioResources ◽  
2015 ◽  
Vol 10 (2) ◽  
Author(s):  
Elammaran Jayamani ◽  
Sinin Hamdan ◽  
Md Rezaur Rahman ◽  
Muhammad Khusairy Bin Bakri

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