Performance requirements for PE tarpaulin

PE tarpaulin is the most widely used type of tarpaulin, so what performance requirements should we pay attention to when purchasing?

First of all, PE tarpaulin has a wide range of uses and multiple uses, so it must meet the following six basic requirements.

1. Light weight, easy to fold, easy to carry and operate.

2. High strength, wear resistance and long service life.

3. Good waterproof and breathable performance, anti-condensation inside.

4. Acid and alkali resistance, mildew resistance, and corrosion resistance.

5. Good weather resistance, flame retardant and fireproof

6. There is no wicking effect and no moisture transfer phenomenon.

Secondly, PE tarpaulin must have air permeability, tensile resistance, tear resistance, cold resistance, heat resistance, tarpaulin, creep resistance, repeated fatigue resistance, abrasion resistance and bending resistance. Performance.

1. Breathability: The breathability of tarpaulin must be considered, especially for military tents. The influencing factors of breathability include the structure of the base fabric, density, material, type of waterproof finishing agent, and resin adhesion. 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, most air-permeable tents are made of cotton, vinylon, lacquer and other short-woven fabrics finished with paraffin wax or acrylonitrile resin.

2. Tensile strength: The tarpaulin must bear various tensions during use, such as when it is tightened, it will be tensioned: during use, it will be subjected to additional forces such as wind, rain, and energy saving. Despite these external forces, they are still required to maintain their original shape and not easily deform. This requires the tarp to have a higher tensile strength, and there should not be too much difference in tensile strength in the warp and weft directions. In particular, the tensile strength of large tents for 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 chlorosulfonylated 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 eaves tents and large tents, 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. Tearing strength: The damage of the tarp is mainly caused by tearing, so the tearing strength is an important indicator of the tarpaulin. The tearing strength is related to whether the tarpaulin will break due to the effect of flying foreign objects or expand to the surroundings after forming a hole for some reason, forming a large structural crack. Therefore, when the tension is high. It is required not only to have high tensile strength, but also to have high tear strength.

5. Water resistance: Water resistance is an important feature 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, the coating film is easy to crack when it is bent or the surface is worn out, which may cause muddy water.

6. Flame retardancy: From the safety of use, the tarpaulin is required to have good flame retardancy. 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.

In addition to the above-mentioned performance requirements, the tarpaulin also requires superior cold resistance, heat resistance, tarpaulin, creep resistance, repeated fatigue resistance, abrasion resistance, and bending resistance.

PE tarpaulin belongs to the polymer manufacturing industry. Although its development history is only a few decades, it has become one of the most widely used tarpaulins, which is inseparable from its superior performance.