How much do you know about the function of tarpaulin?

The tent is mainly composed of two parts, one is the aluminum alloy main frame, and the other is the tarpaulin. Tent and tarpaulin products can protect against rain, heat, cold, etc., so such products are required to have certain special properties. LINYANG tarpaulin factory will tell you, what are the necessary properties of tarpaulin? (1) Basic performance requirements of tarpaulins Considering the various uses of tarpaulins, the general requirements that should be met are: (1) light weight, easy to fold, easy to handle and operate; (2) high strength, wear resistance, service life (3) Good waterproof performance and air permeability, and anti-condensation on the inside; (4) Acid and alkali resistance, mildew resistance, and corrosion resistance; (5) Good weather resistance, flame retardant and fire resistance; (6) No wicking effect, there will be no moisture conduction phenomenon. Tarpaulins are generally required to have 'three defenses' functions. Namely waterproof, fireproof (flame retardant), mildew proof. (2) Main performance indicators In the specific product design or use, the following performance indicators of the tarpaulin should be considered. 1. Air permeability: The air permeability of tarpaulins must be considered, especially for military tent fabrics. The factors affecting air permeability include base fabric organization, density, material, type of waterproof finishing agent, and resin adhesion. With the increase of resin adhesion, the air permeability of the tarpaulin decreased. Of course this depends on the finishing agent used. Generally, most of the tents with air permeability are made of cotton, vinylon, lacquer and other short fiber fabrics finished with paraffin or acrylic resin. 2. Tensile strength: The tarpaulin must be subjected to various tensions during use, such as tension when it is fixed; it must be subjected to additional forces such as wind, rain, and province during use. Despite these external forces, they are still required to maintain their original shape and not easily deformed. In particular, the tensile strength of large tents for inflatable buildings is important. Generally, the base fabric is made of high-strength polyester, vinylon and other long-fiber fabrics. Waterproof finishing with vinyl chloride resin and chlorosulfonated polyethylene resin. The strength of the product is mainly determined by the strength of the fiber material and the density of the fabric. 3. Elongation and dimensional stability: As a roof tent and a large tent, it is often used under tension. The elongation of the fabric should not be too large, and its dimensional stability is determined by the creep characteristics of the material. 4. Tear strength: tarpaulin damage is mainly caused by tearing, so tear strength is an important indicator of tarpaulin. The tear strength is related to whether the tarpaulin will break due to the action of flying foreign objects or expand to the surrounding after forming holes for some reasons, forming large structural cracks. So, when the tension is high. Both high tensile strength and high tear strength are required for the tarpaulin. 5. Water resistance: Water resistance is an important characteristic of tarpaulins. By dipping and finishing, the vinyl chloride fat is filled in the gaps of the fabric to form a coating film. If the resin adhesion amount per unit area exceeds a certain level, water resistance will not be a problem. If the coating film is thin, when it is bent, rubbed or worn on the surface, the coating film is easily broken, which may cause muddy water. 6. Flame retardancy: From the perspective of safety in use, the tarpaulin is required to have good flame retardancy. Flame retardant can be obtained by selecting flame retardant fiber and flame retardant base fabric. It can also be achieved by adding flame retardant to the coating agent. The amount of flame retardant added is directly related to the flame retardant effect. In addition to the above performance requirements, the tarpaulin also requires excellent cold resistance, heat resistance, tarpaulin, creep resistance, repeated fatigue resistance, abrasion resistance and bending resistance.

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