Bio-Based Polymers and Composites - download pdf or read online

By Richard Wool, X. Susan Sun

ISBN-10: 0127639527

ISBN-13: 9780127639529

Bio-Based Polymers and Composites is the 1st publication systematically describing the golf green engineering, chemistry and manufacture of biobased polymers and composites derived from vegetation. This ebook provides an intensive creation to bio-based fabric assets, availability, sustainability, biobased polymer formation, extraction and refining applied sciences, and the necessity for built-in study and multi-disciplinary operating groups. It offers an in-depth description of adhesives, resins, plastics, and composites derived from plant oils, proteins, starches, and normal fibers when it comes to constructions, homes, production, and product functionality. this is often a good e-book for scientists, engineers, graduate scholars and business researchers within the box of bio-based fabrics.

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Additional info for Bio-Based Polymers and Composites

Example text

Mechanical extraction technology is still popular worldwide for small or medium-sized companies, where the soy meals are often used for animal feeds. In contrast, the solvent method allows higher oil recovery and low oil residue in the soybean meals, but requires a larger investment than does mechanical extraction. It also has environmental issues related to the use of hazardous solvents. However, solvent oil extraction is still the main technology used in large feedstock companies in the United States.

The principle of the thickener is based on centrifuge theory. The main separation of starch from gluten takes place at the primary separator. This is a nozzle-bowl centrifuge. The density of the starch is STARCH WET 45 MILLING Endosperm fraction after germ removal Grit screens Fiber wash Fiber-washing screens i iE~~ eScreen ntrifuge y' ~t 1[, 61, TI I I ! / L~C From recycling To fiber dryer r C i = l To starch separation FIGURE 3 . 9 Flow diagram of fiber separation from corn starch and protein.

The synthesized starch is then stored in the endosperm of matured seeds and can be readily isolated using environmentally friendly biorefinery processes for food and industrial uses. During seed germination, sucrose can be hydrolyzed to free hexoses or converted to UDP-glucose and fructose; this is the sucrose degradation process that involves the enzymes sucrose synthase and invertase. Sucrose degradation can generate substrates for cell wall synthesis. Cell walls contain two major components: polysaccharides and lignin.

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Bio-Based Polymers and Composites by Richard Wool, X. Susan Sun


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