Study on the Properties of Poplar Micro/Nanofibril and its Composites

Abstract:

The micro/nanofibrils of poplar could be prepared by treatment of ultrasonic. The properties of micro/nanofibrils were characterized by using scanning electron microscopy (SEM) and X-ray diffractometer (XRD). The results indicated that poplar micro/nanofibril was the same as raw fiber in chemical compositions and crystal structure. The crystallinity of micro/nanofibrils was 84.99 percent, increased by 20 percent compared to original fiber after ultrasonic crushing. The micro/nanofibril diameter was from 50 nm to 1 μm.The internal bond strength (IB) of wheat-straw fiberboard could be significantly improved by adding poplar micro/nanofibril suspension to the urea formaldehyde resin adhesive(UF),when the adding amount of poplar micro/nanofibril suspension was 15wt percent, the IB of wheat-straw fiberboard was up to 0.86 MPa.

• Periodical: Advanced Materials Research (Volume 621)
• Pages: 48-53
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.621.48
• Online since: December 2012
• Authors: Yan Ping Liu, Jiang Tao Zhang, Xiao Ya Luo, Ying Ying Yao
• Keywords: Composite, Internal Bond Strength, Micro/Nanofibrils of Poplar, Properties of Micro/Nanofibrils

References

[1] B Deepanjan, T Louis, W T Germinario. Isolation, preparation and characterization of cellulose microfibers obtained from bagasse. Carbohydrate Polymers. 73 (2008) 371-377.

DOI: 10.1016/j.carbpol.2007.12.005

[2] D Bondeson, A Mathew, K Oksman. Optimization of the isolation of nanocrystals from mierocrystalline cellulose by acid hydrolysis. Cellulose. 13(2006) 171-180.

DOI: 10.1007/s10570-006-9061-4

[3] A Dufresne, J Cavaille, W Helbert. Thermoplastic nanocomposites filled with wheat straw cellulose whiskers: Effect of processing and modeling. Polymer Composites. 18 (1997)198-210.

DOI: 10.1002/pc.10274

[4] A Chakraborty, M Sain, Kortsehot M. Cellulose microfibrils: a novel method of preparation using high shear refining and cryoerushing. Holzforsehung. 59(2005)202-207.

DOI: 10.1515/hf.2005.016

[5] S Iwamoto, A N Nakagaito, H Yano , M Nogi . Optically transparent composites reinforced with plant fiber-based nanofibers. Appl. Phys.A. 81(2005)1109-1112.

DOI: 10.1007/s00339-005-3316-z

[6] H Yano, J Sugiyama, A N Nakagaito, M Nogi, T Matsuura, M Hikita and K Handa. Optically transparent composites reinforced with networks of bacterial nanofibers. Advaneed Materials. 17(2005)153-155.

DOI: 10.1002/adma.200400597

[7] Q Cheng, S Wang, T G Rials . Poly(vinyl alcohol )nanocomposites reinforced with cellulose fibrils isolated by high intensity ultrasoication. Composites Part A. 40(2009)218-224.

DOI: 10.1016/j.compositesa.2008.11.009

[8] M Seydibeyoglu. , O Krina. Novel nanocomposites based on polyurethane and micro fibrillated cellulose . Composites Science and Technology . 68(2008)908-914.

DOI: 10.1016/j.compscitech.2007.08.008

[9] Q Cheng, S Wang. Recent research on nanocomposite reinforced with natural cellulose micro/nanofibril. China Forest Products Industry . 34(2007)3-7.

[10] B Wang, S Mohini. Isolation of nanofibers from soybean source and their reinforcing capability on synthetic polymers. Composites Science and Technology. 67(2007)2521-2527.

DOI: 10.1016/j.compscitech.2006.12.015

[11] J Y Gu. Adhesive and Coating, China forestry press, Beijing, 1999, pp.63-77.

[12] J Li. Wood spectroscopy. Science press, Beijing, 2003, pp.181-185.

[13] F A Wyssling. The fine structure of cellulose microfibrils. Science . 119(1954)80-82.

DOI: 10.1126/science.119.3081.80

[14] J Araki., M Wada., S Kuga., T Okano. (Birefringent glassy phase of a cellulose microcrystal suspension. Langmuir. 16 (2000)2413–2415.

DOI: 10.1021/la9911180

[15] U Weise. Hornification – mechanisms and terminology. Peperi Ja Puu-Paper and Timber. 80 (1998) 110-115.

[16] H Noriko, K Tetsuo, I Mitsuro. Enzymatically produced nano-ordered short elements containing cellulose Iβ crystalline domains. Carbohydrate Polymers. 61(2005)191–197.

DOI: 10.1016/j.carbpol.2005.04.018

[17] Q Cheng, S Wang . Physical and mechanical properties of polyvinyl alcohol and polypropylene composite materials reinforced with fibril aggregates isolated from regenerated cellulose fibers. Cellulose. 14(2007)593-602.

DOI: 10.1007/s10570-007-9141-0