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PU is an abbreviation of Polyurethane, and the Chinese name is polyurethane referred to as polyurethane. Since only simple modification of the formula is required, different physical properties such as density, elasticity, and rigidity can be obtained. At present, it has largely replaced glass fiber insulation materials, wood, and traditional rubber products. Polyurethane is also called microfiber leather and its quality is better than that of PVC (commonly known as xipi). Garment manufacturers use this kind of material to produce clothing, commonly known as imitation leather clothing. In addition, many good bags use imported PU leather. What is pu board pu material? The following will give you information on pu board pu material and pu board pu material characteristics.
What is pu board pu material?
Pu board
PU board, also known as polyurethane sandwich panels, polyurethane composite panels, polyurethane energy-saving board, the correct statement is the construction of polyurethane insulated sandwich panels, the national standard is in line with GB/T 23932-2009, the old standard alternative is JC/T868 -2000.
The product is a bimetal surface, single metal surface, and non-metal surface composite board with polyurethane rigid foam as insulation layer. It is usually used for industrial plants, logistics and warehousing, integrated house walls, and roofing containment systems.
The bond strength of polyurethane sandwich panel is not less than 0.09MPa, the combustibility of sandwich panel reaches Class B1, and the flexural capacity of sandwich panel is Lo/200 (Lo is the distance between standoffs). Force not less than 0.5Kn/m2. The effective width of the plate is usually 1000mm and the length can be customized.
The production of polyurethane sandwich panels requires an advanced continuous production line for sandwich panels. The process consists of cold-formed galvanized steel (aluminum-zinc-coated) internal and external steel plates, polyurethane rigid foam compounded in the middle, and a patented leak-proof sandwich. The roof panel is the ultimate use of polyurethane sandwich panels.
PU board has the following characteristics:
1) Low coefficient of thermal conductivity Polyurethane sandwich panels have low thermal conductivity and good thermal insulation properties. They are currently the best insulation materials.
2) Beautiful appearance and easy installation
3) Polyurethane sandwich panel fireproof
4) Polyurethane sandwich panel is non-toxic and tasteless
5) Wide temperature range
6) Waterproof and moisture proof
The polyurethane sandwich panel has beautiful appearance and good overall effect. It integrates load-bearing, heat preservation, fire prevention, and waterproof, and it does not require secondary decoration, installation is quick and convenient, construction period is short, comprehensive benefits are good, and it has a good price-performance advantage. It is a new type of energy-saving sheet that is widely promoted and promoted by the Ministry of Construction.
Pu material
Pu is a high-molecular compound that is formed by reacting isocyanate groups with hydroxyl groups. It is widely cited and used in the apparel industry due to its resistance to tortuosity, softness, strong stretchability, and air permeability. Pu polyurethane is also called microfiber leather, because the performance is better than PVC, so clothing manufacturers like to use it to produce clothing, clothes made by imitation leather clothing. Most familiar bags use pu material.
Pu fabrics are artificial leather fabrics. They are artificial synthetic materials with a leathery texture and durability. Since the pu material is so good, we take a look at the characteristics of the pu material in the end:
1, good physical properties, resistance to bending, good flexibility, high tensile strength, breathable. The pattern of the PU fabric is a kind of pattern paper which is first hot-pressed on the surface of the semi-finished leather. After waiting for cooling, the paper leather is separated and the surface treatment is performed.
2, high air permeability, temperature penetration rate can reach 8000-14000g/24h/cm2, high peel strength, high water pressure resistance, waterproof breathable clothing fabrics and the bottom layer of the ideal material.
3, high prices, some special requirements of the price of PU fabric than the PVC fabric to be 2-3 times higher. The pattern paper required for general PU fabrics can only be scrapped 4-5 times.
4. The use cycle of the pattern roll is long, so the cost of PU leather is higher than that of PVC leather.
5, with thermoplastic, spinnable, can be made into plastic and fiber.
Summary: The relevant information about pu board pu material and pu board pu material characteristics is introduced here for everyone. I hope this article will be helpful to everyone. If you still have something you don't understand, you can leave a message to Xiaobian at the bottom. We will answer your questions as soon as possible.
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