Fiber pellets

Fig. 6.10-36 Simplified block diagram of the coal-fiber pellet manufacturing process [6.10.1.2]...

Blown In Insulation (see also Loose FIN) - An insulation product composed of loose fibers or fiber pellets that are blown into building cavities or attics using special pneumatic equipment. 

The extruder takes in continuous glass roving and cuts it while wetting it with already molten resin. As compared with conventional injection molding of long fiber pellets, this process saves one heat history on the... 

Figure 6.28 (i) The polarized Raman spectra of the fiber pellets of CNT/PANl with different CNT contents (black lines denote the electric vector of the incident Raman beam perpendicular to the fiber axis and the red lines denote the electric vector of the incident Raman beam parallel to the fiber axis). The blue line is the Raman spectra of CNT/... 

The 6ix Again program of the BASF Corp. has been in operation since 1994. Its process involves collection of used nylon 6 carpet, shredding and separation of face fibers, pelletizing face fiber for depolymerization and chemical distillation to obtain a purified caprolactam monomer, and repolymerization of caprolactam into nylon polymer [32]. 

In order to simplify the procedure above, a one-stage technology has been developed together with the fiber producing company Cordenka based on direct feeding of short cut fiber pellets into the extruder [15]. The actual novelty in this respect is presented by the pellets themselves, since pure short cut rayon fibers cannot be fed into the extruder by usual techniques due to their wadding-like structure and thus low bulk density. Therefore, the fibers were coated with a special sizing to provide fiber adherence and pellet formation. 

The use of pultruded long fiber pellets for compression molding has been suggested but does not seem to offer any benefit. 

There are thousands of plastic product formulations that are produced in a variety of shapes and sizes, such as solid shapes, films and sheets, foams, molded forms, synthetic fibers, pellets, and powders. They are classified into 30 major groups of plastics and polymers. In addition, most finished products contain additives such as colorants, reinforcing agents, fillers, stabilizers, and lubricants. These additives vary the chemical nature of the product still more. 

Tanaka, T., Long fiber pellet production plants and their application to natural fiber composites. (Eco-composites), Ind. Mach., 631, 13 15 (2003). 

Tanaka, T. and Tashiro, N., Production apparatus for long-fiber pellet and ecological composite, Jpn. Plast., 56 (7), 95-104 (2005). 

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