Geotextile resins and additives

This chapter focuses on the production of these three types of polymer resins, ie, PP, PE, and PET, starting from the raw materials fed into reactors for the required polymerization. If required, additives can be introduced in resin pelletization processing before pellets are shipped to geotextile manufacturers for processing into fibers, filaments, or yarns and eventually geotextiles. 

Because PP and PE belong to the polyolefin family, which is hydrocarbon compounds, they are discussed in the same section of this chapter. PP and PE are made from propylene and ethylene monomer, respectively. Their simplified polymerization reactions 

1955 Ziegler—Natta 1977 Union Carbide LLDPE process 

1968 High-yield 5-MgCl2-supported catalysts for PE 1982 Spheripol process for PP 

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Environmental stress crack resistance is covered in chapters Geotextile resins and additives and Mechanical properties, behavior, and testing of geotextiles of this book. 

Type of polymer The polymers used to manufacture geotextiles include mainly polypropylene and polyester polyaramide (PA) and polyvinyl alcohol (PVA) have minor uses (see chapter Geotextile resins and additives). 

Coating and Addition of resin or chemical Modifying surface and internal properties of geotextile Resin bath... 

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