Polyethylene glycol fibers

Based on this analysis it is evident that materials which are biaxially oriented will have good puncture resistance. Highly polar polymers would be resistant to puncture failure because of their tendency to increase in strength when stretched. The addition of randomly dispersed fibrous filler will also add resistance to puncture loads. From some examples such as oriented polyethylene glycol terephthalate (Mylar), vulcanized fiber, and oriented nylon, it is evident that these materials meet one or more of the conditions reviewed. Products and plastics that meet with puncture loading conditions in applications can be reinforced against this type of stress by use of a surface layer of plastic with good puncture resistance. Resistance of the surface layer to puncture will protect the product from puncture loads. An example of this type of application is the addition of an oriented PS layer to foam cups to improve their performance. 

Cellulosic, polyester, and acrylic fibers lubricated with a surfactant-based oiling composition containing an organic phosphorus ester neutralized with an amine showed less pilling, good antistatic properties, and anticorrosiveness. The phosphorus ester salts were hexyl phosphate trimethylamine salt, dodecamethy-lene caproate phosphonate ethylamine salt, and polyethylene glycol dodecyl ether phosphate dimethylamine salt [262]. 

In a recent study, Jin and Kaplan (2003) demonstrate the formation of silk fibroin aggregates in the presence of polyethylene glycol, and present a step by step model for fiber formation based on the principle of micelle formation, and driven by dehydration as well as flow elongation. During this process, hydrophobic chains are exposed to the solvent, but because of the molecules high free energy, water solvation is unfavorable and phase separation followed by aggregation predominates. 

Polyethylene glycols, 10 637, 665 in cosmetic molded sticks, 7 840t Polyethylene hollow fiber membranes, 16 21... 

Various forms of polyurethane are made by adding additional steps to this fundamental process. For example, polyurethane foams are made by adding water and carbon dioxide to the molten polymer. The carbon dioxide creates bubbles, which makes the mixture rise like bread and then harden into a foam. Flexible polyurethane for fibers and foam rubber can be made by adding polyethylene glycol, a softening agent, to the mixture. 

Alfred Stamm studied swelling of fibers at the Forest Products Research Laboratory in Madison, Wisconsin, during the 1940s. In 1956 Stamm published a paper (i) about dimension stabilization of wood with polyethylene glycol. The object of the research was discovery of a way to season green wood. The use of PEG for such seasoning was soon introduced on an industrial scale in the United States. 

Glass fibers Polyethylene glycol and Triton X-100 as coating adhesion and sol-gel method Phenol and Benzamide [472, 476, 477]... 

Figure 4.72 The Raman and FTIR spectra of a 10 p,m fiber of a nylon 6-polyethylene glycol block copolymer. Spectra were collected at exactly the same spot on the fiber with the JYHoriba LabRam-IR microscope with Same Spot technology. [Courtesy of Jobin Yvon, Horiba Group, Edison, NJ (www.jyhoriha.com).]...

The first report on PET fibers of increased elasticity, adiieved by partial substitution of ethylene glycol by polyetiQdene glycol (PEG) or by tetrahydrofuran, goes back to 1958 It was reported then that a copolymer containing 40%—60% polyethylene glycol (mol. wt. 4000) has an elcnigation at break of about 350%. 

To coat PET fibers and its blends with a strongly hydro c layer, the mqority of papers and patents suggest the use of polyethylene glycol, the only variables being the methods for a durable linking of this polymer to the fiber surface. 

Atlas Chem. Ind. suggests fixing of polyethylene glycol (mol. wt. about 6000) to the PET fiber surface through an urethane bridge, which ensures good resistance of the hydrophylic layer to washing. 

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