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A low-density paper board made from mixed waste paper and used where strength and quality are needed.



made by hot forming of wood particles (wood shavings) with a binding agent. Urea-formaldehyde and phenol-formaldehyde resins are used as binding agents. The use of chipboard in various branches of the national economy creates a variety of demands, which accounts for the large number of types available. Chipboard is classified according to the means of forming, the structure, the type of milled wood used, the binding agent, and the facing material.

According to the means of forming, chipboard is classified as flat-formed or extruded. The former type is made with pressure applied at right angles to the plane of the board; the latter is produced by pressure applied parallel to the board. Flat-formed chipboard is produced in one, three, five, and many layers; extruded board is produced in single layers, either of continuous composition or with channels within the board. In single-ply board the size of the wood chips and the amount of binding agent are uniform throughout the entire thickness of the board; in three- and five-ply board, one or both outer layers (from each side) are made of thinner particles and with more of the binding agent than in the inner layers. Such board has a smooth surface and high strength. Chipboard is manufactured unfinished or finished (with one or two layers of shaved or planed veneer, paper impregnated with synthetic resins, or a synthetic emulsion) and in polished or unpolished form.

Chipboard is divided into groups in terms of density (depending on the means of forming and the brand): very low density (350-450 kg/m3), low density (450-650), medium (650-800), and high (700-800). The following basic dimensions (in mm) for chipboard have been established in the USSR (1970): for flat-formed board—length 2,500-3,500, width 1,220-1,750, and thickness 10-25; extruded board-length 2,500, width 1,250, and thickness 15-52.

The physical and mechanical properties of chipboard depend mainly on weight per volume, the shape and size of the wood particles, the amount and quality of the binding agent, and the structure. It is characterized by the following indexes: moisture, 8 percent; water absorption, 12-88 percent; coefficient of thermal conductivity, 0.07-0.25 watts per (m° K), or 0.06-0.22 kcal/nvhr-°C; specific heat capacity, 1.7-1.9 kilojoules per (kg-0 K), or 0.4-0.45 kcal/(kg-° C). swelling (in 24 hours), 5-30 percent in thickness; perpendicular tensile strength, 0.25-0.4 meganewtons per sq m, or 2.5-4 kilograms-force per sq cm. Chipboard is more biologically resistant than natural wood because of the presence of formalin in the binding agents. Chipboard is widely used in the furniture industry, in construction, and in other branches of the economy.



A large class of building boards made from wood particles and a binder; usually has a density of 25 to 50 lb per cu ft (400 to 800 kg per cu m); often faced with veneer. Also See chipboard; coreboard.
References in periodicals archive ?
If that succeeds, Tesco says it would have enough volume of waste to make a specially designed vegetable chipboard recycling plant economically viable.
If you're worried that all your banging up above is going to damage the ceiling below, take a little extra time and drill pilot holes in the chipboard for the nails.
The restarting of chipboard production has seen the return of the huge woodchip pile which residents have long complained about.
This scheme, in the region of pounds 20m, follows more than pounds 20m we have invested over the past 18 months on a new chipboard lamination line and a new impregnation line, which has increased our need for these basic raw materials produced by Campact.
Location of works, place of delivery supplies or performance: Lot 01: Saint-L chipboard - Lot 02: Saint-L Agglo
Flintshire magistrates' court was told that the road was closed and it took two hours for a group of 15 workers from Kronospan, where he picked up the load, to remove the PS8,000 worth of chipboard.
Russia: Chipboard Market (DSP) Analysis and Forecast to 2017 report provides current information about the state of the Russian Particle Board market (DSP) as on March 2011.
The company says there has been little effect on orders, with a British sister company able to supply Hexham with chipboard.
The Merseyside workers, who died include welder Robert Dunroe, 62, from New Ferry who was crushed to death driving a forklift truck at Cammell Laird Shipyard in August 2010; James Bibby, 25, and Thomas Elmer, 27 - from Rossendale, who were killed after being dragged into a machine at the Sonae chipboard factory in Kirkby in December 2010; Zbigniew Galka, 39, who died after suffering serious leg injuries caused by a baling machine at Gaskells Waste Services in Bootle.
78 for 750ml, which is extremely useful because you can use it on all sorts of surfaces - wood, MDF, plywood, chipboard, tiles, melamine, metal, UPVC, plaster and brick - so it replaces lots of different products.
Universal Black ink delivers an optimal combination of long decap time--which keeps ink fluid--and short drying time, making it an ideal ink for varnish-free surfaces on folded chipboard boxes and other paper substrates.
Each durable shelf is made of tough chipboard, can hold up to 136kg in weight and is height adjustable to make room for larger tools and equipment.