In order to know the meaning of the term foam it is necessary to discover, in the first place, its etymological origin. Specifically, we can expose that it derives from Latin, exactly from “spuma”.
Is called foam to the accumulation of bubbles that is generated on the surface of a liquid. In this gaseous mass, the bubbles clump together with a certain consistency.
It can be said that the foam is a system dispersed : There is a phase dispersed in a large number of fractions (the air present in the different bubbles) and a continuous phase (the liquid walls surrounding the bubbles). Various liquids, under certain conditions, can foam.
That is why it is possible to find foam - term from Latin foam- in different places. When the waves from the sea they break on the coast, for example, foam is produced. The phenomenon is generated for several reasons, such as the alkalinity of the ocean and the high concentration of dissolved organic materials (lipids, proteins and others).
Serving beer , foam also appears on the top of the glass. In this case, the foam is linked to the carbonation of the drink: the dissolution of carbon dioxide that comes from the alcoholic fermentation of barley, wheat or cereal used in the elaboration.
He soap , on the other hand, foams if we rub it under the Water . The reason: the friction of its molecules and water molecules generates air bubbles, which are covered by the oil contained in the soap.
In the same way, we cannot ignore the existence of what is known as polyurethane foam, which is a material that is increasingly used in the field of construction. Specifically, it is used not only as thermal and acoustic insulation but also for mounting windows, filling gaps, mounting doors ...
In the market there are several types of that kind of foam. Specifically, we can establish that there are two more relevant varieties:
-The specific ones, which are designed to undertake very specific functions. Thus, we come across those used for joints, those designed for tiles, those used for windows and doors, fire retardants ...
-The multipurpose, which serve a wide variety of actions in the field of construction.
In order to carry out the use of polyurethane foam, it is necessary to proceed with an important series of tips to ensure that it works properly. Exactly it is established that it is essential not only to clean the surface on which it is to be placed well but also to wet it, with the clear purpose that it can adhere more easily and quickly, or even proceed to spray whenever it is in an environment with good ventilation, specifically outdoors.
The foam , foam or foam finally it is a product synthetic or latex that is obtained through an industrial process. Soft and fluffy, the foam is often used as a pillow and mattress padding due to its characteristics.