Briefly introduce the application fields and waterproof performance of PVC tarpaulin

tarpaulin-fabric-plastic-tarpaulin' target='_blank'>PVC tarpaulin is a thicker fabric of cotton or linen that we called sails in the beginning. PVC tarpaulin is divided into coarse and fine. Rough PVC tarpaulins are mainly used in automobile transportation and open-air storage covers and field tents. Because PVC tarpaulins have good waterproof performance, they are also used in needs, and are durable and durable. Fine-point PVC tarpaulins can be used in the production of protective clothing and supplies. PVC tarpaulin plastic coated high-strength polyester waterproof cloth is based on high-strength polyester canvas, coated with polyvinyl chloride (PVC) paste resin and added with accelerator (synthetic vegetable ester), antifungal agent, anti-aging agent, Various chemical additives such as antistatic agent are plasticized at high temperature. It has the properties of waterproof, mildew proof, cold resistance, aging resistance, anti-static and so on; and the breaking strength, tear elongation and tearing strength are much better than traditional tarpaulins. It has a wide range of use and high intensity of use, and is a mainstream product in the modern tarpaulin market. One of them is called three-proof PVC tarpaulin. We can't help but ask which three-proof it is. In fact, this three-proof PVC tarpaulin has the characteristics of fireproof, waterproof and so on. The three-proof PVC tarpaulin is made of special fiber technology, and its effect is powerful. It can play a protective role in harsh conditions such as humidity, smoke, and chemical gases. At the same time, it is also used in fire clothing, fire blankets, fire bags, electric welding, fire curtains and other products. This PVC tarpaulin has its own characteristics, high temperature resistance, good sealing, no irritation, good corrosion resistance, no burning, high toughness, and can be used on objects of any shape. It can protect the integrity of items, isolate the fire source, and prevent burning. For this reason, it is mainly used for fireproof covering PVC tarpaulin, which prolongs the burning and explosion time, increases the rescue time, and has a good protective effect on people and property. The main aspects of PVC tarpaulin: 1. Special light-resistant PVC tarpaulin for animal husbandry breeding greenhouses. 2. Special environmental protection materials for anti-seepage projects (landfills, sewage treatment plants, anti-seepage of rivers, lakes, reservoirs and dams, anti-seepage of municipal engineering, anti-seepage of artificial lakes, mining, salt industry, etc.). 3. Cargo tarpaulin for cars, trains and ships. 4. Special anti-seepage cloth for aquatic product breeding. 5. It is used to cover the stacks of open-air warehouses at the station, dock, seaport and airport. 6. Build temporary granaries and open-air cover for various crops. 7. Materials for building temporary sheds and temporary warehouses on various construction sites such as construction sites and electric power construction sites. 8. It is used for processing camping tents and outer sheaths of various machinery and equipment. What is the working principle of the waterproof PVC tarpaulin? From our theoretical point of view, the waterproofness of the fabric and the breathability of the fabric are a pair of contradictions. If a fabric has good waterproof performance, its air permeability is poor; on the contrary, if a fabric has good air permeability, its waterproof performance is poor. Solving this contradiction is the key to developing PVC waterproof and breathable PVC tarpaulin. We all know that the small diameter of water molecules is 100 microns, but the large diameter of steam is only 0.0004 microns. The difference between the two diameters is huge, reaching nearly 250,000 times. Some people say that waterproof and breathable are contradictory, but it can be solved. We can make the waterproof coating of the fabric into a porous shape. If the pore size is too small, the waterproof performance is good, but the breathable performance is poor, and vice versa. different effects. Therefore, PVC tarpaulins generally have rainproof performance. In people's eyes, how many mm of water column per square centimeter is used to calculate its rainproof performance. For example, tents will reach 3000-4000mm, so that their rainproof level will rise, reaching the resistance to continuous heavy rain. The rainproof tents of general tents are above 1500mm water column, which can only prevent moderate to heavy rain. Although the rainproof index of the tent is relatively high, its ventilation is also an important issue. Because if it is not breathable, it will also affect the quality of the products in our tent. Only when both goals are achieved can the quality of the products be guaranteed.

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