What is Foam Layer? Features and uses of the Foam layer

Foam material is super light, has good pressure relief, high durability, often applied on solar water heaters, freezers,… Please follow the following article of Tnhelearning.edu.vn for more Information about this material.

What is Foam Layer?

Foam is a material created from air bubbles in a liquid or solid, which has been the main raw material in manufacturing industries since the beginning of the 20th century.

The advantage is that it has light weight, low density and is often used as an insulating material on solar water heaters, freezers, etc. Foam is also used to extinguish fires caused by oil in fires.

In addition, with its toughness and high elasticity, it should be applied to aviation, cosmonauts to reduce pressure and protect the health of astronauts.

Features of the Foam layer

The characteristic of Foam that is rarely found in other materials is its high flexibility and resilience.

Originally, this material was made from natural rubber latex. It was not until later, when science found many new materials, that Foam was replaced by chemicals, synthetic fibers and became more and more popular in life.

Currently, compounds are very diverse, but the basic structure consists of the following two types:

• Foam structure holes: holes link together to form a network that closely connects to each other to make up the material.
• Closed-cell foam structure: There is no pore system, the density of Foam molecules is dense, tightly linked together and compacted.

Advantage

• Good pressure reducing ability : Foam products are thicker than other materials, which is easy to see in cushion products that help create good elasticity.
• High durability : Products from Foam material have a durability that lasts from 5-7 years.
• Super light : With the main material made up of foam, it is very light in weight, compact in size, easy to clean and maintain.
• Environmentally friendly: No odor, non-toxic, easy to decompose, so it can be said that Foam is an environmentally friendly material, saving resources and energy.

Defect

• The cost of foam is higher than that of many other heat and sound insulation materials.
• Material is not cool.

Application of foam layer

In the fridge

Foam is considered an important component of the refrigerator, this barrier creates an effective insulation layer to ensure stable and closed operation of the refrigerator, avoiding heat loss to the environment.

Between the refrigerator walls will usually have a layer of PU that plays the role of keeping heat and insulating almost absolute for the product. Helps keep the food inside the refrigerator extremely cold.

In the freezer

Thick foam layer is equipped inside the freezer to help keep cold well, effectively insulate and reduce cold loss.

Thanks to Foam insulation, all types of freezers can keep heat for many hours if the power is turned off, so that food is always preserved at the best temperature.

On solar water heater

The heat-retaining layer from the water heater with the material is a Foam compound that compresses the water, keeping the water temperature up to 120 hours to help ensure the water temperature on days with no or little sunshine.

Besides, material Foam is also used as a material for the production of sportswear, accessories, … and also used in construction.

Hope the last article has provided you with useful information about Foam. Any suggestions please leave below the comment section to be answered.