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•It seems unlikely that solid compositions will ever equal liquid propellants in performance.
•No other high-density polyethylene can match the stresscrack resistance of...
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High-density polyethylene — HDPE has SPI resin ID code 2 High density polyethylene (HDPE) or polyethylene high density (PEHD) is a polyethylene thermoplastic made from petroleum. It takes 1.75 kilograms of petroleum (in terms of energy and raw materials) to make one… … Wikipedia
high-density polyethylene — (HDPE) A very tough, chemically resistant thermoplastic, with a soapy touch; e.g., used for blow molded parts such as fuel tanks or other moldings, such as bumpers … Dictionary of automotive terms
Low-density polyethylene — LDPE has SPI resin ID code 4 Low density polyethylene (LDPE) is a thermoplastic made from petroleum. It was the first grade of polyethylene, produced in 1933 by Imperial Chemical Industries (ICI) using a high pressure process via free radical… … Wikipedia
Polyethylene — or polythene (IUPAC name poly(ethene)) is a thermoplastic commodity heavily used in consumer products (notably the plastic shopping bag). Over 60 million tons of the material are produced worldwide every year. Description Polyethylene is a… … Wikipedia
Cross-linked polyethylene — PEX redirects here. For other uses, see Pex (disambiguation). Cross linked polyethylene, commonly abbreviated PEX or XLPE, is a form of polyethylene with cross links. It is formed into tubing, and is used predominantly in hydronic radiant heating … Wikipedia
Ultra high molecular weight polyethylene — (UHMWPE), also known as high modulus polyethylene (HMPE) or high performance polyethylene (HPPE), is a subset of the thermoplastic polyethylene. It has extremely long chains, with molecular weight numbering in the millions, usually between 2 and… … Wikipedia
Ultra-high-molecular-weight polyethylene — (UHMWPE or sometimes shortened to UHMW), also known as high modulus polyethylene (HMPE) or high performance polyethylene (HPPE), is a subset of the thermoplastic polyethylene. It has extremely long chains, with molecular weight numbering in the… … Wikipedia
Polyethylene terephthalate — PETE redirects here. For the first name, see Peter (disambiguation). For other uses, see Pete (disambiguation). Polyethylene terephthalate fibre IUPAC name … Wikipedia
Energy density — For energy density in the sense of energy per unit mass, see specific energy. For energy density of foods, see specific energy. Energy density is a term used for the amount of energy stored in a given system or region of space per unit volume.… … Wikipedia
Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… … Universalium
Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium