Exploring the Islamic tradition of cleanliness through detailed rules and rituals, this book defines physical cleanliness and analyzes other dimensions of cleanliness, like keeping the heart safe from various kinds of wrong thoughts and maintaining earnings that are untainted by illegitimate income.
This publication describes progress in the flame retardancy of natural and synthetic fibres/fabrics. Such progress evolves from traditional approaches (back-coating methods), current chemical solutions (P-, N-, S-, B-based flame retardants) to novel contemporary strategies (deposition and/or assembly of architectures, plasma treatments, sol-gel processes, and so on). More specifically, the fundamental aspects and chemistry of flame-retardant textile technologies (including back-coating process) and the obtained improvements are reviewed thoroughly, taking into account the detrimental environmental effects due to the use of halogen-based additives such as bromine derivatives. Then, an overview of the chemical development of flame retardant strategies based on halogen-free compounds is summarised. The third part of this book is devoted to the description of contemporary innovatory solutions based on nanotechnology. In detail, the surface deposition of coatings having a different chemical structure is highlighted. To this aim, the effect of (nano)architectures derived from (nano)particle adsorption, plasma deposition/grafting, layer-by-layer assembly, and sol-gel treatments on fibres/fabrics are discussed thoroughly.
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