Pulp and Paper Technology Books
Materials for
Better Productivity in Pulp and Paper Mills: Metals and Polymers
(Author: Dr. Mahendra
Patel; 616 pages; 36 chapters; Publ 2015; ISBN No.978-81-923542-5-5)
Price- US $230+
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Ceramics in Paper Manufacturing
including Advanced and Nano Materials
(Author: Dr.
Mahendra Patel, 420 pages; 32 chapters, Publ 2014; ISBN No: 978-81-923542-4-8.)
Price: $ (USA) 220 + delivery charge
Operations and Recycling in Paper
Mills with Micro and Nano Concepts
Author-
Dr. Mahendra Patel; (22 chapters- 500
pages) Publ. 2012; ISBN No.978-81-923542-3-1)
Price: $ (USA) 150 + delivery charge
Minerals in Paper
Manufacturing
(Author- Dr. Mahendra Patel, 32 chapters, 350 pages ;
ISBN No. 978-81-923542-1-7).
Price: $ (USA) 65 + delivery charge
Micro and Nanotechnology in Paper Manufacturing
Author- Dr. Mahendra Patel, (530 pages ); ISBN No. 978-81-923542-2-4);
Price: $ (USA) 120 + delivery charge
Contact: industrypaper@yahoo.co.uk
patel@nanoindustry.in
:Tel:91(0)9871787870
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Nanotechnology Update
Pulp, Paper and Packaging industries
28/02/2011
Nanofibers and Nanowhiskers from Soft Wood
Two nanocelluloses (cellulose nanofibers [CNF] and nanowhiskers [CNW]) were extracted from soft-wood flour using chemical refining followed either by mechanical fibrillation or acid hydrolysis. The CNF slurry formed an opaque gel that exhibited highly coiled and entangled long fibers with widths between 10 and 20 nm when studied using atomic force microscopy (AFM). The aqueous suspension of the CNW formed a transparent gel with unique morphology of rigid and uniform, whiskerlike structures with widths as low as 1.5–3 nm and lengths in micrometer levels. The viscoelastic properties of these hydrogels with solids content of 0.2 wt% were measured using dynamic rheology experiments. The elastic modulus (G') and viscous modulus (G'') were frequency independent in the low-frequency region. Furthermore, G' was almost 10-fold higher than G'', showing a typical elastic gel behavior. The lower crystallinity obtained from X-ray analysis indicated that the unique structure of CNW from wood could be attributed to the native cellulose being partly dissolved and regenerated during acid hydrolysis. The cellulose nanofibers and nanowhiskers isolated from raw wood show promise as nanorein-forcements for composites, such as transparent films and hydrogels. (Source: Tappi Journal, Feb 2011)
