PET ‘plastics

In the past few years many changes have occurred in the packaging materials utilized for distilled spirits. Traditionally, distilled spirits have been packed primarily in glass containers of approved ATF sizes. Over the last 5—10 years, plastic containers, primarily poly(ethylene terephthalate) (PET), have been utilized by increasing numbers of distillers. Because of environmental concerns, the last two years have seen a change back to glass on some of these package sizes. However, the 50 mL miniature bottie continues to be primarily packed in PET plastic containers. 

Fig. 7-26 Example of the effects of moisture on the mechanical properties of an IM hygroscopic PET plastic.

NQR nuclear quadruple resonance PETS plastics evaluation... 

Mixed xylenes are used as an octane improver in gasoline and for commercial solvents, particularly in industrial cleaning operations. By far, most of the commercial activity is with the individual isomers. Para-xylene, the most important, is principally used in the manufacture of terephthalic acid and dimethyl terephthalate en route to polyester plastics and fibers (Dacron, films such as Mylar, and fabricated products such as PET plastic bottles). Ortho-xylene is used to make phthalic anhydride, which in turn is used to make polyester, alkyd resins, and PVC plasticizers. Meta-xylene is used to a limited extent to make isophthahc acid, a monomer used in making thermally stable polyimide, polyester, and alkyd resins. 

Over the past several decades, there has been a continuing growth in the worldwide demand for plastics, films and fibers, particularly polyesters. The raw materials that make up these polymers are based primarily on the C8 family of aromatics (C8A)-ethylbenzene (EB), para-xylene (PX), meta-xylene (MX), and ortho-xylene (OX). Polyester (PET plastic), derived from PX, in particular has experienced rapid growth and is projected to see continue rapid growth as many developing countries desire to have the lifestyle flexibility that such readily available, versatile plastics support. While the markets for MX- and OX-derived plastics are smaller (plasticizers and specialty polyesters, respectively), all C8A markets continue to increase with population growth [59],... 

Castle, L., Mayo, A., Crews, C., Gilbert, J., 1989, Migration of poly(ethylene terephthalate) (PET) oligomers from PET plastics into foods during microwave and conventional cooking and into bottled beverages. Journal of Food Protection 52 (5) 337-342.15. 

There are a variety of data summarization or description methods whose purpose is to make evident the main features of a data set. (Their use, of course, may be independent of whether or not the data collection process actually employed was in any sense a good one.) To illustrate some of the simplest of these methods, consider the data listed in Table 5.1. These numbers represent aluminum impurity contents (in ppm) of 26 bihourly samples of recycled PET plastic recovered at a Rutgers University recycling pilot plant. 

E-mail Address information napcor.com Web Address www.napcor.com The National Association for PET Container Resources (NAPCOR) is the trade association for the PET plastic industry in the U.S. and Canada. 

PET plastics are hygroscopic so require proper drying before processing. They can be extruded, blow molded, and thermoformed on conventional equipment if dried to a moisture content of less than 50 ppm. Recycling all types of PET materials is easily accomplished. Of the 2002 total USA 49.4 million units of PET beverage container market 57% contain carbonated soft drinks and 24% contain water.485... 

T. Bhaskar, J. Kaneko, A. Muto, Y. Sakata, E. Jakab, T. Matsui, andM. A. Uddin, Pyrolysis studies of PP/PE/PS/PVC/HIPS-Br mixed with PET plastics and dehalogenation (Br, Cl) of liquid products, J. Anal. Appl. Pyro., 72, Tl- i i (2004). 

K.S.Rebeiz, D.W.Fowler, and D.R.Paul (1991). Making Polymer Concrete with Recycled PET. Plastic Engineering, p. 33. 

As a further example, para-xylene is oxidized to form terephthalic add, which is used to make polyethylene terephthalate (PET) plastic and polyester fiber (Section 12.8, Table 12.5) ... 

Westerhoff P, Prapaipong P, Shock E, HUlaireau A. Antimony leaching from polyethylene terephthalate (PET) plastic used for bottled drinking water. Water Res 2008a 42 (3) 551-556. 

Toloken, S., APR Urges Against tUe Use of Opaque White PET, Plastics News, April 29, 2002, p. 13. 

Tbloken, Steve, Campaign Asks Coke to Use Recycled PET, Plastics News, September 14, 1998, p. 6. 

For facilities generating a considerable amount of PET/plastic banding, Sweed s Model 450 WMXHD Dual Drive Scrap Chopper will quickly and efficiently feed tangled nests of plastic straps and provide premium recy-clable material, reducing your disposal fees and helping to attain your zero landfill goals. Contact Sweed Machinery, (800) 888-1352, www.sweed.com. Circle 309... 

Tricresyl phosphate, 2% pet (plasticizer in adhesives) Triethylenetetramine, 0.5% pet (epoxy catalyst) Turpentine, 10% olive oil (furniture polishes) Urea-formaldehyde resin, 10% pet (fiberboard glue) Various wood dusts, 10% pet... 

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