The main properties and uses of tarpaulin

Main properties and uses of tarpaulins: 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) Strength High, wear-resistant, long service life; 3) Good waterproof and breathable performance, anti-condensation on the inside; 4) Acid and alkali resistance, mildew resistance, anti-corrosion; 5) Good weather resistance, flame retardant, fire prevention; 6 ) No wicking effect and no moisture conduction. Tarpaulins are generally required to have“Three defenses”Function. Namely waterproof, fireproof (flame retardant), mildew proof. Second, the main performance indicators In the specific product design or use, the following performance indicators of the tarpaulin should be considered. 1. Air permeability: Considering the air permeability of tarpaulins, especially 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 when in 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 used as inflatable buildings is extremely 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 leather and dimensional stability: As a canopy tent and a large tent, tarpaulin 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: The breakage of the tarpaulin is mainly caused by tearing, so the tear strength is an important indicator of the 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 feature 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: The tarpaulins are required to have good flame retardancy from the properties of the materials used. Flame retardancy can be obtained by selecting flame retardant fibers and flame retardant base fabrics. 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. The use of tarpaulin: 1. It can be used as a freight tarpaulin for cars, trains and ships. 2. It can be used to cover the piles of open-air warehouses at the station, wharf, seaport and airport. 3. Temporary granaries and open-air covering of various crops can be built. 4. It can be used as materials for building temporary sheds and temporary warehouses on various construction sites such as construction sites and electric power construction sites. 5. It can be processed into the outer sheath of camping tents and various machinery and equipment.

In an age when PVC Tarpaulin is increasingly important, the researchers believe manufacturers should pay close attention to their results.

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