Use Of Transparent Waterproof Tarpaulin

What is the main function of transparent waterproof tarpaulin when it is produced?



What is the main function of transparent waterproof tarpaulin when it is produced?

1. Breathability

Tarpaulin must consider its breathability, especially military tent fabrics. Factors affecting air permeability include the structure, density, material of the base fabric, the type of waterproof finishing agent, and the adhesion of the resin. As the amount of resin adhesion increases, the air permeability of the tarpaulin decreases. Of course this is related to the finishing agent used. Generally speaking, most breathable tents are made of short-woven fabrics such as cotton, vinylon, and lacquer, and finished with paraffin or acrylic resin.

2. Tensile strength

The tarpaulin must withstand various tensile forces during use. For example, it will be tightened when it is fixed; during use, it will be subjected to additional forces such as wind, rain, and energy saving. Despite these external forces, they still need to maintain their original shape and not easily deform. This requires the tarpaulin to have a higher tensile strength, and the tensile strength in the warp and weft directions cannot be too different. Especially 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. Use vinyl chloride resin and chlorosulfonated polyethylene resin for waterproof finishing. 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 eaves tents and large tents, they are 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 tearing strength is related to whether the tarpaulin will break due to the effect of flying foreign objects or form a hole for some reason and then expand to the surroundings to form a larger structural crack. Therefore, when the tension is high. The tarpaulin is required to have high tensile strength and high tear strength.

5. Waterproof

Water resistance is an important characteristic of tarpaulin. Through dipping and finishing, the vinyl chloride fat is filled in the gaps of the fabric tissue to form a coating film. If the amount of resin adhesion per unit area exceeds a certain level, water resistance is not a problem. If the coating film is thin, it is easy to crack when it is bent, rubbed or the surface is worn, which may cause muddy water.

6. Flame retardancy

From the perspective of safety in use, the tarpaulin is required to have better flame retardancy. Flame retardancy can be obtained by selecting flame-retardant fibers and flame-retardant base fabrics. It can also be achieved by adding a 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 superior cold resistance, heat resistance, tarpaulin resistance, creep resistance, repeated fatigue resistance, abrasion resistance and bending resistance.

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