Requirements for the Operation and Construction of Polyurethane Wall Panels

Custom prefab house manufacturer to share with you:

Polyurethane wall panel is a building material that emerges with the continuous advancement of science and technology in the times. It has been developed for a period of time, constantly improving its own technology to meet the needs of modern people. In addition to its well-known insulation properties, but also can play excellent water resistance, wind resistance, not easy to crack, vibration absorption, anti-noise to a variety of advantages, plus the price is very reasonable, so it is used in more than This area has become a leader in the construction industry.

Polyurethane wall panels also have unique technical requirements in the construction, mainly because the performance of the building material needs to be perfectly displayed, and it must rely on excellent installation technology to ensure. The first is to prepare the tools for installation, and to choose the right time and place for installation, not in an unventilated environment or in heavy wind and rain. The second is to fully clean the external walls of the building, especially the base surface, and to keep clean without leaving any gravel stains. Finally, when installing, make sure that the insulation board is installed correctly and whether the direction is reversed.

Pu Sandwich Panel

Why is PU sandwich panel commonly used?

This polyurethane sandwich panel is now very common in people's lives, and people can see it directly in many aspects of life. When it comes to better analyzing and using such aspects, the use of this aspect itself is largely based on this method so that people can better use it. And it is indeed the typical meaning of realizing the forehead. It is indeed a system that such a practice is very necessary. Of course, the advantage is the obvious effect.

As many industries see different aspects of polyurethane sandwich panels, people can feel a better distinction when using it. Polyurethane composite panels are generally used for roofing outer panels of buildings. The panels have good thermal insulation, heat insulation, and sound insulation effects. Polyurethane does not support combustion and meets fire safety. The upper and lower boards are combined with polyurethane to have high strength and rigidity. The lower board is smooth and flat, with clear lines, which increases the indoor beauty and flatness. Easy to install, short construction period, beautiful, it is a new type of building material. When people use this material more reasonably, they can make better and better use of this material, and this model can indeed achieve some good results.

Now when this kind of polyurethane sandwich panel is used, it is indeed possible to achieve better results according to the typical model of people. For people, this is a better role because there are better ways to use it and it will be a better influencer system. The typical results obtained when used will be perfect.

Which Is Better, Fiberglass Wool Or Rock Wool?

What is the most common thermal insulation material used in light steel structure villas is fiberglass wool and rock wool? What is the difference between the two production processes, performance, service life, etc.? Is it good or bad? Fiber glass sandwich panel supplier share with you:

First, glass fiber wool and rock wool are different in raw materials and processing technology

1. Raw materials and technology of glass fiber wool

The main raw material of fiber glass sandwich panel is glass, which is mixed with other auxiliary materials in a certain proportion and put together in a glass melting furnace. The melting operation is not started. The melted solution will leak. The screening of the plate separates the impurities and is finally sent to the centrifuge. The centrifuge is fully powered and runs at a high level. Through the force of rotation, the glass is thrown into a thin stream of glass. The flow will be formed-all kinds of fibers. At the same time using the atomizing adhesive, due to the negative pressure wind of the poly cotton mesh belt, the chemical fibers adhered to the epoxy adhesive adhere to the moving mesh belt, resulting in a symmetrical Cotton felt.

Finally, the product is cured and shaped by a constant temperature curing oven, and cut according to predetermined specifications. The cut product can be sold after packaging.

2.Raw wool raw materials and technology

The main material of rock wool is fine basalt. After being melted into a solution at high temperature, it is sent to the centrifugal equipment to assist other materials with different proportions to make common insulation materials.

Fiber Glass Sandwich Panel China

Depending on the application of rock wool, different specifications can be made. Such as rock wool tube shell, rock wool board, rock wool seam felt and so on.

Second, the acoustic performance difference between glass fiber wool and rock wool board

Fiber glass sandwich panel china and rock wool both have good sound insulation, but their acoustic performance is different. Generally speaking, the sound insulation effect of 24kg / m3 glass fiber wool is equivalent to 80kg / m3 rock wool. (In the practical application of light steel villa construction, the effect of glass fiber wool is much better than that of rock wool. Because, even with the same sound insulation effect, glass wool can be much lighter.

Differences in hydrophobic performance between glass fiber wool and rock wool board

1.Hydrophobic performance of glass fiber wool

Glass fiber cotton is not easy to break due to soaking and rain, and it is easy to dry when it is invaded, and its characteristics are stable.

2. Hydrophobic performance of rock wool

The rock wool immediately collapsed after being infiltrated and lost many characteristics.

Differences in hydrophobic performance between glass fiber wool and rock wool board

1.Hydrophobic performance of glass fiber wool

Glass fiber cotton is not easy to break due to soaking and rain, and it is easy to dry when it is invaded, and its characteristics are stable.

2. Hydrophobic performance of rock wool

The rock wool immediately collapsed after being infiltrated and lost many characteristics.

Fourth, the difference between the service life of glass fiber wool and rock wool board

1. The service life of glass fiber wool Glass wool has stable performance. Generally, it will not be powdered and its performance will decrease sharply. Its service life can reach 30 years.

2.The useful life of rock wool

Rock wool is easy to smash. After a period of time, the slag ball will fall off or even disintegrate. Its service life is generally about 10 years.

Performance Comparison Of Rock Wool Insulation Board And Polyurethane Insulation Board

Rock wool sandwich panel supplier to share with you: Rock wool insulation board is based on basalt and other natural ore as the main raw material. The basalt cotton rock high-temperature solution is pulled into 4-7μm discontinuous fibers, and then a certain amount of binder, dustproof oil, and hydrophobic agent is added to the rockwool fibers. After sedimentation, curing, and cutting, according to different processes, Use to make a series of products with different densities. Rock wool insulation board products are suitable for thermal insulation and sound insulation of industrial equipment, buildings and ships.

Disadvantages:

After being used for 3 to 5 years, the inferior rock wool insulation board will be powdery due to volatilization and oxidation of the binder in the raw material, which will cause certain pollution and embrittlement. It is prone to breakage and damage under the action of gravity.

The new rock sandwich panel (Rubber Wool Sandwich Panel Polyurethane Edgebanding) is made of two layers of high-quality color-coated steel plate or other precision-shaped metal plates. After the strip of rock wool is turned 90 degrees (making its fibers perpendicular to the upper and lower steel plates), the high-quality rock wool is strongly bonded to the metal panel through a high-strength, high-adhesion, and high-fire-resistant adhesive. Made of beautiful, flat, tough building boards. The formed board has excellent fire resistance, heat insulation, environmental protection and other characteristics, which provides an excellent choice for the industrial building envelope system.

Rock Sandwich Panel

Rigid foam plastic with the functions of waterproofing, heat insulation, etc., formed by mixing and reacting A component materials and B component materials, is called polyurethane rigid foam, referred to as polyurethane rigid foam.

A-component material: A-component material refers to a combination material composed of additives such as a combined polyol (combined polyether or polyester) and a foaming agent. Component A is one of the necessary raw materials to form rigid polyurethane foam.

B-component material: B-component material refers to the raw material whose main component is isocyanate, commonly known as black material. Component B is also one of the necessary raw materials to form rigid polyurethane foam.

Features:

1. Rigid polyurethane has low thermal conductivity and good thermal performance. When the rigid polyurethane bulk density is 35 ～ 40kg / m3, the thermal conductivity is only 0.018 ~ 0.023w / (m · k), which is equivalent to about half of the extruded board (EPS), which is the lowest thermal conductivity among all thermal insulation materials. .

2. Rigid polyurethane has moisture and water resistance. Rigid polyurethane has a closed cell ratio of more than 95% and is a water-repellent material. It will not increase the thermal conductivity due to moisture absorption, and the wall surface will not leak water.

3, rigid polyurethane fire, flame retardant, high temperature resistance. After the flame retardant is added, polyurethane is a self-extinguishing flame-retardant material. Its softening point can reach above 250 degrees Celsius, and it will only decompose at higher temperatures: In addition, polyurethane will foam in its foam when it is burned. A carbonized layer is formed on the surface. This layer of carbonized layer can help isolate the underlying foam and effectively prevent the spread of fire. Moreover, polyurethane does not generate harmful gases at high temperatures.

4. Due to the excellent thermal insulation performance of the polyurethane sheet, the thickness of the outer protective structure of the building can be reduced under the same thermal insulation requirements, thereby increasing the indoor use area.

5. Strong deformation resistance, not easy to crack, stable and safe finish.

6. The polyurethane material has a stable porosity structure, which is basically a closed-cell structure, which not only has excellent thermal insulation performance, but also has good freeze-thaw resistance and sound absorption. The average life of rigid foam polyurethane insulation structure can reach more than 30 years under the conditions of normal use and maintenance. Under normal use conditions of the structure's life, it can not be damaged under the influence of external factors such as the growth of insects, fungi or algae, or the damage of rodents.

7, comprehensive cost-effective. Although the unit price of rigid polyurethane foam is higher than that of other traditional insulation materials, the increased cost will be offset by a substantial reduction in heating and cooling costs.

What Is a Sandwich Panel? What Are The Characteristics Of Sandwich Panels?

Sandwich panel is composed of two-layer molded metal panel (or other material panel) and high-molecular heat-insulating inner core foamed and cured directly in the middle of the panel, which is easy to install, lightweight and efficient. The filling system also uses a closed-bubble molecular structure to prevent condensation of water vapor. Sandwich panels are a common product in current building materials. They not only have good flame retardant and sound insulation, but also are environmentally friendly and efficient.

At present, the classification of sandwich panels includes: polystyrene sandwich panels, that is, EPS sandwich panels (currently, the most widely used species); extruded polystyrene sandwich panels, that is, XPS sandwich panels; rigid polyurethane sandwich panels It is PU sandwich panel; three polyester sandwich panel is PIR sandwich panel; phenolic sandwich panel is PF sandwich panel; rock wool sandwich panel is RW sandwich panel.

Eps Sandwich Panel

Features of EPS sandwich panel:

1. Light weight: The weight of the sandwich panel per square meter is less than 24kg, which can fully reduce the structural cost.

2. Quick installation: The characteristics of the sandwich panel are light, and the characteristics of plugging, installation and cutting can determine the simplicity of installation, which can improve efficiency and save construction time.

3. Fire protection: The surface material and insulation material of the sandwich panel are non-combustible or non-combustible materials, which can meet the requirements of fire protection regulations.

4. Fire resistance: Sandwich panels treated with special coatings are guaranteed for 10-15 years. After that, anti-corrosive coatings are sprayed every ten years.

5, beautiful: the clear lines of the sandwich panel are up to dozens of colors, which can meet the needs of any style of building

6, thermal insulation: commonly used thermal insulation materials are rock wool, glass fiber cotton, polystyrene, polyurethane, etc., low thermal conductivity, has a good thermal insulation effect.

7, environmental protection and noise prevention: Sandwich panel sound insulation strength can reach 40-50 decibels, is a very effective sound insulation material.

8. Strong plasticity: The sandwich panel can be cut at will, which is enough to meet the needs of special design.

9, high strength: using high-strength steel plate as the base material, tensile strength 5600 (kg / cm2), coupled with the most advanced design and roll forming, has excellent structural characteristics.

Application range

Since the EPS spontaneous combustion and ignition temperature are 495 ° C and 370oC, respectively, EPS color steel sandwich panels cannot be used for kitchen decoration, use in high-power luminaires, and cannot be near locations with high power consumption and high frequency. EPS color steel sandwich panels cannot be used as building materials for temporary low and high voltage power distribution rooms in the factory. EPS color steel sandwich panels can be used as the envelope structure material for clean workshops.

As an emerging building energy-saving material, EPS color steel sandwich panels are widely used in the construction industry. How to use EPS color steel sandwich panels in a standardized way under the conditions of ensuring energy saving and safety based on the lessons of fire? This is a major issue that the majority of firefighters need to continuously research and explore in the future.

We are EPS sandwich panel manufacturer. If you are interested in our products, please feel free to contact us.