Glue in the context of "Molecular binding"

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⭐ Core Definition: Glue

Adhesive, also known as glue, cement, mucilage, or paste, is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation.

The use of adhesives offers certain advantages over other binding techniques such as sewing, mechanical fastenings, and welding. These include the ability to bind different materials together, the more efficient distribution of stress across a joint, the cost-effectiveness of an easily mechanized process, and greater flexibility in design. Disadvantages of adhesive use include decreased stability at high temperatures, relative weakness in bonding large objects with a small bonding surface area, and greater difficulty in separating objects during testing. Adhesives are typically organized by the method of adhesion followed by reactive or non-reactive, a term which refers to whether the adhesive chemically reacts in order to harden. Alternatively, they can be organized either by their starting physical phase or whether their raw stock is of natural or synthetic origin.

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In this Dossier

Glue in the context of Papier-mâché

Papier-mâché (UK: /ˌpæpi ˈmæʃ/ PAP-ee-ay MASH-ay, US: /ˌppər məˈʃ/ PAY-pər mə-SHAY, French: [papje mɑʃe] – the French term "mâché" here means "crushed and ground") is a versatile craft technique with roots in ancient China, in which waste paper is shredded and mixed with water and a binder to produce a pulp ideal for modelling or moulding, which dries to a hard surface and allows the creation of light, strong and inexpensive objects of any shape, even very complicated ones. There are various recipes, including those using cardboard and some mineral elements such as chalk or clay (carton-pierre, a building material). Papier-mâché reinforced with textiles or boiled cardboard (carton bouilli) can be used for durable, sturdy objects. There is even carton-cuir (cardboard and leather) and also a "laminating process", a method in which strips of paper are glued together in layers. Binding agents include glue, starch or wallpaper paste. "Carton-paille" or strawboard was already described in a book in 1881. Pasteboard is made of whole sheets of paper glued together, or layers of paper pulp pressed together. Millboard is a type of strong pasteboard that contains old rope and other coarse materials in addition to paper.

This composite material can be used in a variety of traditional and ceremonial activities, as well as in arts and crafts, for example to make many different inexpensive items such as Christmas decorations (including nativity figures), toys or masks, or models for educational purposes, or even pieces of furniture, and is ideal for large-scale production; Carton-pierre can be used to make decorative architectural elements, sculptures and statues, or theatre or film sets; papier-mâché has also been used to make household objects, which can become valuable if artistically painted (as many boxes and snuffboxes were in the past) or lacquered, sometimes with inlays of mother-of-pearl, for example. Large papier-mâché pieces, such as statues or carnival floats, require a wooden (or bamboo, etc.) frame. Making papier-mâché is also a popular pastime, especially with children.

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Glue in the context of Binder (material)

A binder or binding agent is any material or substance that holds or draws other materials together to form a cohesive whole mechanically, chemically, by adhesion or cohesion.

More narrowly, binders are liquid or dough-like substances that harden by a chemical or physical process and bind fibres, filler powder and other particles added into it. Examples include glue, adhesive and thickening.

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Glue in the context of Fritware

Fritware, also known as stone-paste, is a type of pottery in which ground glass (frit) is added to clay to reduce its fusion temperature. The mixture may include quartz or other siliceous material. An organic compound such as gum or glue may be added for binding. The resulting mixture can be fired at a lower temperature than clay alone. A glaze is then applied on the surface.

Fritware was invented to give a strong white body, which, combined with tin-glazing of the surface, allowed it to approximate the result of Chinese porcelain. Porcelain was not manufactured in the Islamic world until modern times, and most fine Islamic pottery was made of fritware. Frit was also a significant component in some early European porcelains.

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Glue in the context of Gum arabic

Gum arabic (gum acacia, gum sudani, Senegal gum and by other names) is a tree gum exuded by two species of Acacia sensu lato: Senegalia senegal, and Vachellia seyal. However, the term "gum arabic" does not indicate a particular botanical source. The gum is harvested commercially from wild trees, mostly in Sudan (about 70% of the global supply) and throughout the Sahel, from Senegal to Somalia. The name "gum Arabic" (al-samgh al-'arabi) was used in the Middle East at least as early as the 9th century. Gum arabic first found its way to Europe via Arabic ports and retained its name of origin.

Gum arabic is a complex mixture of glycoproteins and polysaccharides, predominantly polymers of arabinose and galactose. It is soluble in water, edible, and used primarily in the food industry and soft drink industry as a stabilizer, with E number E414 (I414 in the US). Gum arabic is a key ingredient in traditional lithography and is used in printing, paints, glues, cosmetics, and various industrial applications, including viscosity control in inks and in textile industries.

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Glue in the context of Horseshoe

A horseshoe is a piece of equestrian equipment that protects a horse hoof from wear. Shoes are attached on the palmar surface (ground side) of the hooves, usually nailed through the insensitive hoof wall, anatomically akin to the human toenail. Horseshoes can also be glued in certain situations.

Horseshoes are available in a wide variety of materials and styles, developed for different types of horses and for the work they do. The most common materials are steel and aluminium, but specialized shoes may include use of rubber, plastic, magnesium, titanium, or copper. Steel tends to be preferred in sports in which a strong, long-wearing shoe is needed, such as polo, eventing, show jumping, and western riding events. Aluminium shoes are lighter, making them common in horse racing where a lighter shoe is desired, and often facilitate certain types of movement; they are often favored in the discipline of dressage. Some horseshoes have "caulkins", "caulks", or "calks": protrusions at the toe or heels of the shoe, or both, to provide additional traction.

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Glue in the context of Distemper (paint)

Distemper is a decorative paint and a historical medium for painting pictures, and contrasted with tempera. The binder may be glues of vegetable or animal origin (excluding egg). Soft distemper is not abrasion resistant and may include binders such as chalk, ground pigments, and animal glue. Hard distemper is stronger and wear-resistant and can include casein or linseed oil as binders.

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Glue in the context of Methyl acetate

Methyl acetate, also known as MeOAc, acetic acid methyl ester or methyl ethanoate, is a carboxylate ester with the formula CH3COOCH3. It is a flammable liquid with a characteristically pleasant smell reminiscent of some glues and nail polish removers. Methyl acetate is occasionally used as a solvent, being weakly polar and lipophilic, but its close relative ethyl acetate is a more common solvent, being less toxic and less soluble in water. Methyl acetate has a solubility of 25% in water at room temperature. At elevated temperature its solubility in water is much higher. Methyl acetate is not stable in the presence of strong aqueous bases or aqueous acids. Methyl acetate is not regulated as a volatile organic compound in the USA.

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Glue in the context of Ethyl acetate

Ethyl acetate (commonly abbreviated EtOAc, ETAC or EA) is the organic compound with the formula CH3CO2CH2CH3, simplified to C4H8O2. This flammable, colorless liquid has a characteristic sweet smell (similar to pear drops) and is used in glues, nail polish removers, and the decaffeination process of tea and coffee. Ethyl acetate is the ester of ethanol and acetic acid; it is manufactured on a large scale for use as a solvent.

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