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Royalex
Royalex was a composite material, comprising an outer layer of vinyl and hard acrylonitrile butadiene styrene plastic (ABS) and an inner layer of ABS foam. The layers are bonded by heat treatment. It was used to manufacture durable, mid-priced canoes. Its supplier closed out production of the material in 2014. Development Royalex is basically a board comprising a 'sandwich' of standard rigid ABS sheets in the core of which is an ABS layer designed to foam/expand during the heating stage prior to vacuum forming. Thus Royalex can be designed to form virtually any finished thickness to suit the end application. One just adds extra sheets. Since ABS has a poor resistance to UV a thin outer layer of UV resistant vinyl is generally included. This can be self-coloured or painted. ABS is a copolymer of rubber and thermoplastic: Acrylonitrile, butadiene, styrene. It was developed at US Rubber Co's Chicago plant by Bob Pooley and was simply called Royalite. US Rubber was later renamed Uniro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canoe
A canoe is a lightweight narrow water vessel, typically pointed at both ends and open on top, propelled by one or more seated or kneeling paddlers facing the direction of travel and using a single-bladed paddle. In British English, the term ''canoe'' can also refer to a kayak, while canoes are called Canadian or open canoes to distinguish them from kayaks. Canoes were developed by cultures all over the world, including some designed for use with sails or outriggers. Until the mid-19th century, the canoe was an important means of transport for exploration and trade, and in some places is still used as such, sometimes with the addition of an outboard motor. Where the canoe played a key role in history, such as the Northern United States, Canada, and New Zealand, it remains an important theme in popular culture. Canoes are now widely used for competition and pleasure, such as racing, whitewater, touring and camping, freestyle and general recreation. Canoeing has been part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composite Material
A composite material (also called a composition material or shortened to composite, which is the common name) is a material which is produced from two or more constituent materials. These constituent materials have notably dissimilar chemical or physical properties and are merged to create a material with properties unlike the individual elements. Within the finished structure, the individual elements remain separate and distinct, distinguishing composites from mixtures and solid solutions. Typical engineered composite materials include: *Reinforced concrete and masonry *Composite wood such as plywood *Reinforced plastics, such as fibre-reinforced polymer or fiberglass *Ceramic matrix composites ( composite ceramic and metal matrices) *Metal matrix composites *and other advanced composite materials There are various reasons where new material can be favoured. Typical examples include materials which are less expensive, lighter, stronger or more durable when compared with commo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acrylonitrile Butadiene Styrene
Acrylonitrile butadiene styrene (ABS) (chemical formula (C8H8)''x''·(C4H6)''y''·(C3H3N)''z'' is a common thermoplastic polymer. Its glass transition temperature is approximately . ABS is amorphous and therefore has no true melting point. ABS is a terpolymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene. The proportions can vary from 15% to 35% acrylonitrile, 5% to 30% butadiene and 40% to 60% styrene. The result is a long chain of polybutadiene crisscrossed with shorter chains of poly(styrene-co-acrylonitrile). The nitrile groups from neighboring chains, being polar, attract each other and bind the chains together, making ABS stronger than pure polystyrene. The acrylonitrile also contributes chemical resistance, fatigue resistance, hardness, and rigidity, while increasing the heat deflection temperature. The styrene gives the plastic a shiny, impervious surface, as well as hardness, rigidity, and improved processing ease. The polybutadiene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copolymer
In polymer chemistry, a copolymer is a polymer derived from more than one species of monomer. The polymerization of monomers into copolymers is called copolymerization. Copolymers obtained from the copolymerization of two monomer species are sometimes called ''bipolymers''. Those obtained from three and four monomers are called ''terpolymers'' and ''quaterpolymers'', respectively. Copolymers can be characterized by a variety of techniques such as NMR spectroscopy and size-exclusion chromatography to determine the molecular size, weight, properties, and composition of the material. Commercial copolymers include acrylonitrile butadiene styrene (ABS), styrene/butadiene co-polymer (SBR), nitrile rubber, styrene-acrylonitrile, styrene-isoprene-styrene (SIS) and ethylene-vinyl acetate, all of which are formed by chain-growth polymerization. Another production mechanism is step-growth polymerization, which is used to produce the nylon-12/6/66 copolymer of nylon 12, nylon 6 and nylon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toughness
In materials science and metallurgy, toughness is the ability of a material to absorb energy and plastically deform without fracturing."Toughness" Brian Larson, editor, 2001–2011, The Collaboration for NDT Education, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uniroyal
The company formerly known as the United States Rubber Company, now Uniroyal, is an American manufacturer of tires and other synthetic rubber-related products, as well as variety of items for military use, such as ammunition, explosives, chemical weapons and operations and maintenance activities (O&MA) at the government-owned contractor-operated facilities. It was founded in Naugatuck, Connecticut, in 1892. It was one of the original 12 stocks in the Dow Jones Industrial Average, and became Uniroyal, Inc., as part of creating a unified brand for its products and subsidiaries in 1961. The company's long-lived advertisement slogan was "''United States Tires are Good Tires''." One of Uniroyal's best known tires is the ''Tiger Paw'' introduced in the 1960s and included as original equipment for that decade's muscle cars such as the Pontiac GTO, which itself was promoted as The Tiger during its early years. Today, Uniroyal still uses the Tiger Paw brand name in its tire line. In 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warsaw, Indiana
Warsaw is a city in and the county seat of Kosciusko County, Indiana, United States. Warsaw has a population of 13,559 as of the 2010 U.S. Census. Warsaw also borders a smaller town, Winona Lake. Etymology Warsaw, named after the capital of Poland in tribute to Tadeusz Kościuszko, was platted on October 21, 1836. Warsaw's post office was established in 1837. History Early Warsaw saw traders, trappers, and merchants supplying manufactured goods to area farmers. Because of the central location in the lake region, tourists soon began visiting Warsaw and eventually made permanent residences in the city, with industry soon following. In March 1854, Warsaw became a town, and the initial census on February 2, 1854, showed a total of 752 residents in the town limits. The Pennsylvania Railroad (then known as the Pittsburgh, Fort Wayne, and Chicago Railroad) reached Warsaw in November 1854. The Big Four Railroad (Cleveland, Cincinnati, Chicago, and St Louis) arrived in Warsaw in Augus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avon Lake, Ohio
Avon Lake is a city in northeastern Lorain County, Ohio, United States, located on the southern shore of Lake Erie about 17 miles west of Cleveland. The population was 25,206 at the 2020 Census. It is part of the Cleveland metropolitan area. History Avon Lake was first settled in the 17th century and was, along with Avon, Bay Village, and Westlake, inhabited by the Erie. After the war with the Iroquois in 1656 ended the peoples were largely dispersed or integrated into Iroquois society. The area was then sparsely populated until the Lenape and Wyandot migrated into the area in 1700. The first European settlement in the area was founded in 1786 by Moravian missionaries. The Northwest Indian war resulted in the Indians in the area giving up all land East of Cuyahoga river in the Treaty of Greenville. Undoubtedly this was the start of European contact with the peoples in Avon lake, who now found themselves in the Connecticut Western Reserve. Any remaining Indian claims to their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hull (watercraft)
A hull is the watertight body of a ship, boat, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is called the waterline. General features There is a wide variety of hull types that are chosen for suitability for different usages, the hull shape being dependent upon the needs of the design. Shapes range from a nearly perfect box in the case of scow barges to a needle-sharp surface of revolution in the case of a racing multihull sailboat. The shape is chosen to strike a balance between cost, hydrostatic considerations (accommodation, load carrying, and stability), hydrodynamics (speed, power requirements, and motion and behavior in a seaway) and special considerations for the ship's role, such as the rounded bow of an icebreaker or the flat bottom of a landing craft. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kent Ford (canoeist)
Kent Ford (born 1957) is a former American slalom canoeist who competed from the late 1970s to the early 1990s. He won two gold medals in the C1 team event at the ICF Canoe Slalom World Championships, earning them in 1983 and 1985 The year 1985 was designated as the International Youth Year by the United Nations. Events January * January 1 ** The Internet's Domain Name System is created. ** Greenland withdraws from the European Economic Community as a result of a .... World Cup individual podiums References American male canoeists Living people 1957 births International whitewater paddlers Medalists at the ICF Canoe Slalom World Championships {{US-canoe-bio-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Walrus
''The Walrus'' is an independent, non-profit Canadian media organization. It is multi-platform and produces an 8-issue-per-year magazine and online editorial content that includes current affairs, fiction, poetry, and podcasts, a national speaker series called The Walrus Talks, and branded content for clients through The Walrus Lab. History Creation In 2002, David Berlin, a former editor and owner of the ''Literary Review of Canada'', began promoting his vision of a world-class Canadian magazine. This led him to meet with then-''Harper's'' editor Lewis H. Lapham to discuss creating a "''Harper's'' North," which would combine the American magazine with 40 pages of Canadian content. As Berlin searched for funding to create that content, a mutual friend put him in touch with Ken Alexander, a former high school English and history teacher and then senior producer of CBC Newsworld's ''CounterSpin''. Like Berlin, Alexander was hoping to found an intelligent Canadian magazin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
