Adsorption by powders and porous solids: principles, by Jean Rouquerol, Visit Amazon's Françoise Rouquerol Page,

By Jean Rouquerol, Visit Amazon's Françoise Rouquerol Page, search results, Learn about Author Central, Françoise Rouquerol, , Kenneth S.W. Sing

The declared target of this booklet is to supply an introductory evaluate of some of the theoretical and useful elements of adsorption via powders and porous solids with specific connection with fabrics of technological value. the first target is to fulfill the desires of scholars and non-specialists, who're new to floor technological know-how or who desire to use the complex thoughts now to be had for the decision of floor zone, pore measurement and floor characterization. moreover, a serious account is given of modern paintings at the adsorptive homes of activated carbons, oxides, clays and zeolites. Key beneficial properties * offers a complete remedy of adsorption at either the gas/solid interface and the liquid/solid interface * comprises chapters facing experimental technique and the translation of adsorption info bought with porous oxides, carbons and zeolites * suggestions seize the significance of heterogeneous catalysis, chemical engineering and the creation of pigments, cements, agrochemicals, and prescription drugs

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During the late 1950s and early 1960s, the structure of single crystals grown from solution was reported for a wide range of polymers [196, 222, 248, 249]. Lamellar structures and chain folding have been observed for many polymers and various crystal shapes reported for the single crystals of different materials obtained from both dilute solution and the melt [248–253], such as flat ribbon (PEST), lozenge (PA 6) and irregular haxagonal platelet tending to flat ribbon (PA 66). The concept of polymer chain folding, which is commonly attributed to the isolation of single crystals in 1957 [222, 241], although the first report of chain folding was made by Storks [254] in a 1938 electron diffraction study of thin films of gutta-percha36 formed by evaporation from chloroform, is now a well-known aspect of polymer and fibre 34 interestingly, this was reported independently by the three individual researchers.

Peterlin [276] and Prevorsek et al. [277] both conclude that the strongest element of fibre structure is the microfibril. In the case of PA 6 and PES fibres, the interfibrillar domains consist of extended, as opposed to folded, chain molecules [277]. 18 Structural model of PA 6. Reproduced from [277], with kind permission from Springer Science and Business Media. ) considers that fibrillar sub-units contain amorphous and laterally bonded crystalline phases, the latter having a lamellar texture oriented at right angles to the long fibre axis [151].

Man-made fibres are produced as continuous (infinite length) filaments, either as monofilament yarns or more commonly, as multifilament yarns, although often continuous filament fibres are cut to a particular staple length; durable crimps, loops, coils, etc. can be imparted to continuous filament yarns by texturing. Indeed, yarns produced from staple fibres are softer, bulkier and warmer than are yarns comprising untextured or flat continuous filaments. Whilst the shortest textile fibres are ~1 cm in length, the majority of staple fibres are ~2–50 cm long.

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