I.    Basic information of membrane structures

Membrane structure is a kind of space structure, which is formed by the high strength flexible membrane material withstanding the tension and compression of other materials and can withstand certain external loads. It is free, light, soft, full of power, flame retardant, easy to make, fast to install, energy-saving, easy to construct, safe to use and other advantages, so it is widely used around the world.

Characteristics of membrane structure:

1. Lightweight: The reason why the dead weight of the tension structure is small is that it relies on the prestressed form rather than materials to maintain the stability of the structure, so that its dead weight is much smaller than that of the traditional building structure, but it has good stability.

2. Light transmittance: the light transmittance of the membrane material can provide the required illumination for the building, which is very important for building energy conservation.

3. Flexibility: the tensioned membrane structure is not rigid and will deform under the action of wind load or snow load. Membrane structures adapt to external loads by deformation. During this process, the radius of curvature of membrane surface in the direction of load action will be reduced until it can more effectively resist the load.

4. Sculpture sense: The tensioned membrane structure enables architects to design various complex and vivid space forms with self-balanced tension. With the change of light in a day, the sculptural membrane structure presents different forms through light and shadow.

5. Safety: due to the light weight of the light structure, even in case of accidental collapse, its risk is smaller than that of the traditional building structure. When the membrane structure is torn, if the structural arrangement can ensure that the rigid supporting members such as mast and beam will not collapse.

II.   What is PVC building membrane

The commonly used PVC membrane material is polyester fiber covered with polyvinyl chloride (PVC). The main characteristics of PVC materials are low strength, large elasticity, easy aging, large creep, poor self-cleaning, cheap price, easy processing, rich colors, and good folding resistance. In order to improve its performance, a layer of polytetrafluoroethylene coating can be coated on its surface to improve its anti-aging and self-cleaning ability, and its service life can reach about 15 years

III.  Key points for selection of PVC membrane materials:

1) The surface layer of PVC film material shall have stable corrosion resistance and UV resistance within the shelf life, and the surface shall have self-bonding performance.

2) The PVC membrane structure material will have a cave after reaching the melting point in the fire environment, and the boundary of the cave will burn and spread, but no open fire will be generated. According to GB8624 Grading Method for Burning Behavior of Building Materials, it is classified as Class B1 fire-resistant material.

3) The color, light reflection and transmittance of PVC film materials should meet the requirements in the following table.

IV. Technical data sheet of PVC membrane structural materials

V.   Application scope of PVC structural membrane

PVC membrane structural materials can be applied to large public facilities, such as the roof system of stadiums and gymnasiums, airport halls, exhibition centers, shopping centers, parking lots, platform facilities, etc. It can also be applied to leisure facilities, industrial facilities, entrance corridors and landmark or landscape buildings.

VI.  Advantages of DERVINYL products:

1. The professional technical team can customize and produce the best cost-effective tarpaulin products according to customer needs

2. The 7 * 24-hour online quality inspection team ensures that each roll of cloth sent to customers meets customer needs

3. Pre sales and after-sales consultation to answer the most concerned product questions

4. ISO9001, ISO14001 quality system certification,

5. It can accept any third-party testing according to the customer's requirements

VII.About Anhui DERVINYL

Anhui DER New Material Technology Co., Ltd is located in Zhangbaling Industrial Zone in Mingguang City, Anhui Province, 30000sqm production area, which has been producing and exporting PVC products over 20 years. We have the most advanced tarpaulin manufacturing equipment, the most complete product manufacturing process, the most scientific Product Formula and best production efficiency among China factories.