Post by account_disabled on Mar 16, 2024 6:47:47 GMT 1
Foundation insulation When insulating the lower parts of the building, the most important thing is to ensure that the material does not easily absorb water. Since the foundation is located underground, it is constantly exposed to contact with moisture. Effective thermal insulation of these elements in a building can be done using extruded polystyrene or polyurethane , either in the form of panels or PUR foam . Insulation of exterior walls. The requirements for the thermal conductivity coefficient of walls are becoming more and more restrictive. To meet these, designers can choose between two solutions: use a thicker material or select a solution that provides the expected parameters with thinner insulation. Thicker insulating layers are usually made of polystyrene panels (in two-layer walls) or mineral wool (in three-layer walls). However, this technology has its disadvantages: the depth of the window recesses increases along with the thickness, which makes it difficult to install the windows. This can be solved by applying thinner insulation based on PIR panels . With a very low thermal conductivity coefficient, the panels can be thinner, which translates into lower material consumption and better access of light to the interior of the building. Roof insulation Pitched roofs are usually insulated with mineral wool, which can fill the spaces between the rafters very well. For flat roofs, it is best to use polystyrene or PIR panels . As the roof planes are difficult to access, they can be conveniently insulated with PUR foam .
To find high-quality insulation materials for different parts of your home, you should consult reputable manufacturers. PCC Group is one of the leading suppliers of PUR foams, PIR panels and other construction materials. The full range of products can be found in the catalog available on the Product Portal. What can be the shape of heat-insulating materials? Most of the most popular thermal insulation materials (wool, polystyrene foam) are available in the form of panels mounted on the surface of a building envelope component. The panels vary in thickness, so you can easily CZ Leads adjust the insulation layer parameters to your own needs. Styrofoam and mineral wool are also available in various sizes and the panels can be cut to size. For thermal insulating materials made of polyurethane , the range is wider. Buildings can be insulated with the use of sandwich panels or foam that is applied to the surface of the envelope component with spray units. PIR thermal insulating panels will be perfect for creating an insulating layer on the entire wall or ceiling. PUR foam spray insulation is worth using when local insulation is necessary, for example in the case of thermal bridges. This application method allows even small and difficult-to-access cavities to be easily filled.
Surfactants are chemical compounds that play a very important role in many industries. Thanks to their unique properties and a wide range of applications, they are used, among others, in the textile industry. The textile industry is characterized by great diversity due to the large number of small and medium-sized companies. Intensified competition affects the dynamics of the development of production technologies, including chemical raw materials and auxiliary substances used. Surfactants are used in the textile industry at almost all stages of the production cycle: the production of raw materials (synthetic fibers), semi-finished products (for example, materials) and final products (clothing and other finished products). These compounds are also used in individual machining processes, such as cleaning, lubrication, dyeing or finishing. Published: 08-9-2023 Structure of surfactants Surfactants belong to the group of surface-active substances , and owe their name to specific characteristics and diverse functions. A surfactant molecule actively adapts to the polar nature of the surface of the phases into which it is introduced. This phenomenon results from its molecular structure, that is, two ends connected with a covalent bond: – a polar hydrophilic part, which is responsible for molecular interactions with water molecules; – a hydrophobic part of low polarity, which is attracted to organic molecules. Long hydrocarbon and alkylaromatic chains are examples of nonpolar groups.