What is the difference between PVC and PE waterproof tarpaulins? PE: The chemical name is polyethylene, which is a semi-crystalline thermoplastic material and is the material for making PE tarpaulins. So what are the characteristics of PE? We know that polyethylene is odorless, non-toxic, feels like wax, has excellent low-temperature resistance, good water absorption, good electrical insulation, can be used normally at -70 to -100 degrees Celsius, and has good chemical stability.
PVC waterproof tarpaulin
Material
The production of PE tarpaulins generally uses HDPE (high-density polyethylene), which has a higher operating temperature, good hardness, mechanical strength and chemical resistance. Polyethylene is suitable for hollow blow molding, injection molding and extrusion of various products (hard), such as various containers, nets, strapping tapes, and can be used as cable coatings, pipes, profiles, sheets, etc. The raw material of PE tarpaulin generally refers to color strip cloth, which is coated with PE film on both sides of PE woven cloth, and polypropylene woven cloth is also used. Its production process is: drawing-circular weaving-double-sided lamination. This kind of tarpaulin has poor waterproof performance. Generally, it cannot be guaranteed to be waterproof after one use. The disadvantage is that it is easy to wear and tear. The advantage is that it is light in weight, clean and pollution-free. It is generally used for temporary stacking of goods to prevent rain and dust, and is not suitable for long-term use in open air environments.
In terms of properties
PVC tarpaulin is a plastic-coated high-strength polyester waterproof cloth. It is made of high-strength polyester canvas as the base cloth, coated with polyvinyl chloride (PVC) paste resin, and added with speed increaser, mildew inhibitor, anti-aging agent, antistatic agent and other chemical additives, and plasticized at high temperature. It has the properties of waterproof, mildew-proof, cold-resistant, aging-resistant, and anti-static; and the breaking strength, tear elongation, and tear strength of this product are much better than traditional tarpaulins; the product appearance is colorful and pleasing to the eye. The surface is specially treated to prevent slipping. It is an internationally popular waterproof canvas with a large width. When processing the finished product, it can reduce the seams and improve the quality. It can be heat-sealed and spliced to avoid the worry of sewing pinholes and water leakage. And products with different functions, colors, and thicknesses can be produced according to user needs.
In terms of use
PVC tarpaulin is a polyester filament base fabric coated with PVC paste resin on both sides. Because it is a plastic dipping process, it is formed in one step. There is PVC slurry in the gaps of the cloth, so it has good waterproof performance. Its production process: polyester filament cloth-plastic dipping coating-drying and shaping-calendering cooling-rolling. Now the tarpaulins on trucks, rainproof supplies such as yards are all made of PVC tarpaulins. PVC materials have good rainproof properties and good fatigue resistance. PVC tarpaulins are much better than PP and PE tarpaulins in terms of anti-aging. Its waterproof effect is the most significant among all waterproof canvases. It is cold and sun-proof. Most of them are used for long-term outdoor cargo cover and rainproof, aquaculture rain and windproof canvas roller curtains, coal yard rainproof, truck transportation, cargo ship cover and other purposes.