High density polyethylene milk containers

Use once, then make into a different object, which after use can be burned or buried (high-density polyethylene milk jug made into a container for motor oil). 

HDPE High-density polyethylene Milk and water jugs, grocery bags, bottles Bottles, molded containers... 

The process developed at CPRR is said to be similar in its layout to those used in private industry. Most plastic reclamation systems are designed to work with rigid containers, such as PET beverage bottles, and HDPE milk or household product containers, because they are currently the easiest postconsumer items to collect and sort. PET beverage bottles are actually not one, but several materials a PET body (clear or green), a pigmented high-density polyethylene (HDPE) base cup, aluminum cap, label, and adhesives. To separate these components, either a dry or wet separation method based on one or more of the different physical properties of the materials can be used. 

The principal plastics that show up in municipal wastes are the polyethylenes, polystyrenes, and polypropylenes. These include polyethylene terephthalate (PET) used in soil drink containers, high density polyethylene (HDPE), used in milk jugs, and polystyrene, used in fast-food containers, which, incidentally, were first banned in Oregon (1989). 

The Phillips complex produces high-density polyethylene, which is used to make milk bottles and other containers. Prior to the accident, the facility produced approximately 1.5 billion pounds of the material per year. It employed 905 company employees and approximately 600 daily contract employees. The contract employees were engaged primarily in regular maintenance activities and new plant construction. 

High density polyethylene (HOPE) Milk containers... 

Plastics in MSW The Americas, in the United States, plastic resin sales and captive use reached 46.2 million tons in 2001, a 4% decrease from 2000, according to the American Plastics Council (1). Resin production rose to 45.9 milUon tons in 2001, up 4.8% from the previous year. The U.S. plastics industry continues to expand into new markets as plastic products come to replace ones made of wood and metal (Fig. 1). In the United States, some 232 million tons of MSW were generated in 2000, an increase of 0.9 million tons over 1999 (Fig. 2). Of this stream, plastics constitute about 10.7 wt%. Plastic containers and packaging dominate, followed by materials in goods such as automobiles, appliances, electronics, furniture, and carpeting. Plastic resins used in containers and packaging include poly(ethylene terephthalate) (PET in soft drink bottles with polypropylene [PP] caps), high density polyethylene (HDPE in milk and water bottles), poly(vinyl... 

Various forms of polyethylene, shown in Figure 4.3, have different molecular structures. High-density polyethylene (HDPE) is a linear polymer. It has a high density because linear molecules can pack together closely. One use of HDPE is in plastic containers such as milk and juice bottles, because HDPE tends to remain stiff and rigid. 

An example of a much-used crystalline thermoplastic polymer is polyethylene. LDPE (low density polyethylene) is considered to be semicrystalline while HDPE (high density polyethylene) or UHDPE (ultra high density polyethylene) are considered to be highly crystalline. LDPE is one of the most widely used plastics accounting for more than 20% of the total polymer market and is used extensively for milk containers and other packaging operations. HDPE and UHDPE are used extensively in water... 

Plastic materials have become basic and indispensable in our life. To protect against contamination and conserve them, food products are distributed in different plastic packages bags, bottles, boxes, etc. that contain all kinds of edible products liquid (water, milk, cold beverages) or solid (fruit, meat, fish, frozen foods, etc.). The group of commercial plastics, also termed commodity plastics, consists of the most used polymers in terms of volume and number of applications. They are mainly polystyrene (PS), polypropylene (PP), high-and low-density polyethylene (HDPE, LDPE), polyethylene terephthalate (PET) and, in lower proportion, polycarbonate (PC) [71. 

Consider polyethylene, which can be made into plastic wrap (e.g., Glad Wrap) or plastic containers such as milk jugs. You work in a manufacturing facility that produces a variety of polyethylenes (e.g., low density and high density). Trace the life cycle of the products of your facility qualitatively. 

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