Functional topics | understanding flame retardant textiles to prevent "unburned"
Functional topics | understanding flame retardant textiles to prevent "unburned"
Textile materials are widely used in clothing and family life. They often become fire inducers and release toxic gases, which directly endanger human safety. In some special occasions, such as chemical plants, oil refineries, hotels, halls and so on, it is very important to use fabrics with flame retardant function.
Application of flame retardant fiber
Flame retardant fiber mainly includes intrinsic flame retardant fiber and modified flame retardant fiber. The essential flame retardant fibers mainly include basalt fiber, glass fiber, ceramic fiber, aramid fiber, polyimide fiber, polysulfone fiber, etc. The modified flame retardant fiber mainly refers to the fiber with good flame retardant property obtained by physical or chemical modification, such as flame retardant polyester fiber, flame retardant nylon fiber and flame retardant cellulose fiber.
Blending method is the most common method to produce flame retardant modified fiber. For example, in order to improve the flame retardant property of cellulose fiber, Lanjing (Austria) developed Lanjing tmfr (flame retardant fiber) by blending method. The product has high strength and the flame retardant medium is permanently planted in the fiber. According to its data, compared with other common protective clothing, wearing Lanjing tmfr? Protective clothing can reduce the proportion of second and third degree burns by 30%.
In the application of high-performance fiber, teijinconex (Japan) high heat resistance meta aramid fiber (Teijin) and Nomex (American DuPont) fiber are the best among them.
Flame retardant functional finishing
The flame retardant finishing process of fabrics is relatively simple, especially suitable for blended fabrics. Although the comprehensive properties of the finished fabric are slightly worse than that of the fiber itself, especially in the aspects of handle, physical and mechanical properties and flame-retardant durability, the comprehensive processing cost is only 35% of that of the fiber body.
The conventional flame retardants are mainly divided into halogen flame retardants, silicon flame retardants, phosphorus flame retardants, nitrogen flame retardants and inorganic flame retardants, while the new flame retardants mainly use multiple elements for synergistic flame retardancy. BASF's flamestab? Flame retardant meets the highest safety standards and can replace halogen-containing flame retardants. It does not degrade the physical and mechanical properties of fibers during use, but also provides UV protection and thermal stability.
frontier research
The research team of Korea Institute of science and Technology (Kist) developed flame retardant carbon fiber reinforced composites (CFRP) using vegetable derived tannic acid and proposed an environmentally friendly recycling method. The mechanical rigidity and flame retardancy of CFRP can be improved by tannic acid. When CFRP is dissolved in water in supercritical fluid state, more than 99% of CFRP can be recovered without reducing the properties of carbon fiber.
In a study on a new type of flame retardant cellulose fiber by rise Research Institute in Sweden, silica nanoparticles were used to replace highly toxic flame retardants. By introducing silica nanoparticles into regenerated cellulose fibers, flame-retardant fibers with controllable properties, safety and non-toxic were prepared.
Product application cases
Curtain products
The curtain products of a company are all in line with GB 20286-2006 "flame retardant products and components in public places - Requirements and identification of combustion performance". The fabrics are woven with new flame retardant yarn, which has good flame retardant effect. There is no open fire when burning and it will not spread and has good safety.
Aramid flame retardant fleece fabric
The aramid flame-retardant fleece fabric developed by Quanzhou not only has excellent flame retardant property, but also has soft handle, good fluffy, drapability and non melting drop carbonization in case of fire, which can meet the needs of civil household textiles such as curtains and carpets.
Multi functional flame retardant blanket
Zhengzhou factory uses the new flame retardant material polyimide, flame retardant acrylic fiber and flame retardant viscose fiber blended to make multi-functional flame retardant blanket. It has natural color, comfortable skin friendly, warm and wear-resistant, and has flame-retardant, antibacterial, high-temperature resistance, far-infrared health care and other functions. It can be used in the environment of 260-300 ℃ to meet people's fire prevention needs in the early stage of fire.
Technology has changed our life. Our yarn has now developed such products as flame retardant, water soluble, etc.