By Gajanan Bhat
Structure and homes of High-Performance Fibers explores the connection among the constitution and homes of quite a lot of high-performance fibers. half I covers high-performance inorganic fibers, together with glasses and ceramics, plus carbon fibers of assorted varieties. partly II, high-performance artificial polymer fibers are mentioned, whereas half III reports these normal fibers that may be used to create complicated textiles. The high-performance homes of those fibers are concerning their chemistry and morphology, in addition to the ways that they're synthesized and spun.
High-performance fibers shape the root of fabric fabrics with functions in safety, medication, and composite reinforcement. Fibers are chosen for those technical purposes because of their complicated actual, mechanical, and chemical homes.
- Offers up to date assurance of recent and complex fabrics for the fiber and fabric industries
- Reviews structure-property relationships of high-performance inorganic, carbon, artificial polymer, and ordinary fibers
- Includes contributions from a global workforce of authors edited by means of a professional within the field
- Reviews these normal fibers that may be used to create complicated textiles
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Additional info for Structure and Properties of High-Performance Fibers
Example text
1 35 Mesophase pitch Mesophase formation When isotropic pitch is heated in the range from 350 to 450 C a mesophase is produced (Fig. 4), the rate of formation increasing with temperature. The initial step involves condensation and dehydrogenation reactions leading to an increase in molecular mass of the aromatic pitch molecules (Greinke, 1986). These planar polyaromatic molecules then stack together to form a so-called molecular assembly unit. These units subsequently self-assemble into microdomains, which are the anisotropic spheres first discovered by Brooks and Taylor (1965).
2001). 8 Relationship between viscosity and shear rate of mesophase pitches derived from naphthalene ( ), methylnaphthalene ( ), 3:7 methylnaphthalene/ naphthalene cooligomerization ( ), and 3:7 methylnaphthalene/ naphthalene blending ( ). , 1998. The properties of co-oligomerized mesophase pitch from methylnaphthalene and naphthalene catalyzed by HF/BF3. Carbon 36, 369e375 with permission of Elsevier. 3 Structure and Properties of High-Performance Fibers Manufacturing of carbon fibers The conversion of mesophase pitch fiber to carbon fiber follows a similar process to that used to convert PAN polymer to carbon fiber.
Szafko J, Turska E. Free radical polymerization of some monomers in dimethyl formamide. Makromol Chem 1972;156:297e310 (Copyright (C) 2013 American Chemical Society (ACS). ). 36. Thomas WM. Mechanism of acrylonitrile polymerization. Fortschr Hochpolym Forsch 1961;2:401. 37. Wilkinson WK. Process for polymerizing methacrylonitrile. I. du Pont, Del; 1963. 38. Szafko J, Turska E. Copolymerization of acrylonitrile and methyl esters of a-substituted acrylic acids. Makromol Chem 1972;156:311e20 (Copyright (C) 2013 American Chemical Society (ACS).