What are the characteristics of air dome building materials? Many friends who want to use the air dome building want to know, so what are the characteristics of the air mold materials? With the rapid development of society, the application of air dome building can be said to be very extensive. Now let's briefly introduce the characteristics of air dome building materials?

High strength

The membrane material for construction is generally composed of base cloth and coating. The base cloth is woven by high-strength polyester fiber or glass fiber in a certain way to provide the tensile or tear strength of the membrane material; The coating and surface layer provide protection for the substrate and can improve the durability and self-cleaning of the membrane material. In high stress state, the higher the tensile strength of the membrane material, the less prone to creep and aging; Scratches and folds during the production and construction of the membrane have an impact on the strength of the membrane. Therefore, membrane materials in membrane structures must have high tensile strength and tear resistance.

Flame retardancy

As a long-term or short-term building, the membrane material itself must meet the requirements of fire protection indicators of building materials. Take Japan's large membrane structure country as an example: they have successfully applied membrane structures to many large public buildings as early as the 1980s, and the glass fiber cloth coated polytetrafluoroethylene membrane material (PTFE material) has already passed the fire test, but so far, the membrane material has not been listed as a non-combustible material in the building standard, just requires that each building single membrane material pass the fire test to meet the requirements. It is generally believed that PTFE material is incombustible and PVC material is flame retardant.

Durability

The durability of the membrane material is not only related to the nature of the material used for the cloth base, but also affects the service life of the membrane material due to the different degree of protection of the cloth base due to different coating types. Generally speaking, the warranty period of PTFE materials is more than 25 years, and that of PVC materials is 10 to 15 years; So far, some PTFE materials have been used for more than 35 years, and PVC materials have been used for more than 20 years, but they are still in normal use.

Self-cleaning property

Self-cleaning is the anti-fouling and self-cleaning ability of the membrane material itself. Due to the chemical instability of PVC material to ultraviolet rays, especially in the summer sun, the PVC coating is easy to segregate and stick, adhere to dust, and is not easy to be washed away by rain, affecting the visibility and reducing the service life. Therefore, PVC membrane materials for general buildings can effectively improve their self-cleaning by adding a layer of PVF (polyvinylidene fluoride) or PVDF (polyvinylidene fluoride) or silicone surface layer to the PVC coating. PTFE film material itself has good antifouling and self-cleaning performance, and does not need to add any surface material.

Sound insulation

If the membrane structure building is located in the downtown area or in the downtown area, it puts forward higher requirements for the sound insulation performance of the building. Single-layer membrane structure buildings are often used in activities where the requirements for sound insulation are not too high, or they usually use ingenious design, construction and other means to improve their sound insulation performance.

Thermal insulation

The thermal insulation performance of single-layer film material is roughly equivalent to that of laminated glass. If a building has high requirements for thermal insulation performance, it has to consider double-layer or multi-layer film, but this will damage the light transmission performance of the building. In order to coordinate the above contradictions, a specific method must be sought for a building, such as seeking an inner film material with good light transmission.

From the above information, I think you can see that the future development of air dome architecture is very good. If you want to know more about other aspects of air dome architecture, you can pay attention to our official website for detailed information, and hope that the above information can help you.