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Polyurethane Foam Polyurethane foam is a porous plastic material formed by an aggregation of bubbles, also known by the colloquial name foam. Is basically formed by the chemical reaction of two compounds, a polyol and an isocyanate, although the formulation needs and supports multiple variants and additives. This reaction releases bolha dom carbon bolha dom dioxide gas to form bubbles.
Basically, according to the manufacturing system can be divided types of polyurethane foams in two types: Foams hot: are foams that release heat during reaction, made of large pieces, designed to be cut later. They are manufactured in a continuous process using a device called a skimmer, which basically is the union of several machines, of which the first is a blender, and blend that brings the different components of the mixture; the second is a system bolha dom of endless belts, dragging the foam during its growth, limiting growth to give the desired shape to the block; and the final part of the cappuccino is a cutting device for cutting the block to the desired length. They are usually the cheapest, most are used and known by the public. Foams cold: those who just release heat in the reaction, bolha dom are used to create pieces from molds; as fillers for other items; as insulators, bolha dom etc.. Manufactured by simple foaming, which consists of a mixing device. Normally usually higher quality and duration foams hot, but its cost is significantly higher.
Features and uses Polyurethane foam is a versatile material because according additives and manufacturing systems used, you can get very different and foams for very different characteristics and uses. From the well-known block of resilient foam mattress for almost rigid foam toys, automotive and footwear.
To compare the different foams are typically used much density, but only serves as a comparison when discussing foams with the same composition, since different formulas give different characteristics. In foams are seeking the longest possible in other cheap pricing, other breathability, insulating ability, ease of outline or shape, lightness, etc..
Polyurethane foam has many uses in today's world. bolha dom Some of them are: mattresses main filler or as part of the furniture in padded seats of sofas and chairs, cushioned padding, etc. in construction, thermal insulation or as a filling main element bolha dom in automotive dashboards, bolha dom seats, etc.. more on many items such as toys, clothing, sponges, shoes, pillows, bolha dom cushions, packaging and in general all kinds of padded bolha dom or stuffed.
Polyurethane foam insulation is known to be a very good insulation performance therefore can be applied thin layers obtaining similar yields than other materials in much greater thicknesses. Its application can be done from the bottom or from the top part. It also has excellent sound-insulating properties. variable coefficient.
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