The Principle Of Functional Yarn And Its Application Scope In Various Industries
The principle of Functional Yarn and its application scope in various industries
Features and principles of Functional Yarn:
Functional Yarn is characterized by high elastic state and have high adhesion state, functional of elastic yarn is produced by its curl conformation change, Functional Yarn intermolecular interactions will hinder movement of molecular chain, and show that the viscosity characteristics, so that the stress and strain are often in a state of imbalance. The long chain molecular structure of Functional Yarns and weak secondary forces in the molecules; It makes Functional Yarn materials exhibit unique viscoelastic energy, so it has good shock absorption, sound insulation and cushioning performance. Functional Yarn parts are widely used to isolate shock and absorb shock because of its hysteresis, damping and the ability to carry out reversible large deformation of . The hysteresis and internal friction characteristics of Functional Yarn are usually indicated by the loss factor. The larger the loss factor, the more obvious the damping and the raw heat of the Functional Yarn and the more obvious the shock effect. The size of Functional Yarn loss factors is not only related to the structure of Functional Yarn itself, but also to temperature and frequency. At room temperature, natural Functional Yarn (NR) and butadiene smaller loss factor of Functional Yarn (BR), styrene butadiene Functional Yarns (SBR), a synthetic Functional Yarn (CR), ethylene propylene Functional Yarn (EPR), polyurethane (PU) and Functional Yarn silicon Functional Yarn loss factor in the middle, butyl Functional Yarn (HR) and acrylonitrile butadiene (NBR) the loss factor of the largest Functional Yarn. The Functional Yarn materials used for the purpose of shock absorber are generally divided into 5 kinds, namely NR, SBR, and BR for ordinary Functional Yarn materials. NBR for oil resistant vulcanizing rubber; CR for weather resistant rubber; IIR used for high damping vulcanized rubber; EPR is used for heat-resisting vulcanized rubber. NR, though less dissipation factor, its comprehensive performance is best, with excellent flexibility, good resistance to fatigue, low heating, creep, have with good bonding performance of the metal, cold resistance, electrical insulation and processing performance, thus NR is widely used as shock, resistance to low temperature or weather resistance, but with BR or CR and blending modification. Nishiue, NR, BR, and contains carbon atom number greater than 4 - OH groups of organic acid shock absorber has a good durability of the metal salt, in 40 ℃ and 70 ℃ by 22 h x 148 h compression permanent deformation under the condition of 17.0% and 11.7%, respectively.
Application scope of Functional Yarn:
Functional Yarn mainly Functional Yarn, Functional Yarn air spring, Functional Yarn fender (see image), sponge and cork Functional Yarn, elastic coupling and flexible to take over a few classes. For example: Functional Yarn. Most of them are Functional Yarn and metal compound products. There are many forms of double plate, cylinder and sheet, which are used for shock absorption and sound insulation  of various kinds of machinery, instruments, axle and pipeline. Functional Yarn air spring. It is better than the shock and shock resistance of metal springs, mainly for vehicles. The structure is similar to the inner tyre, with the curtain layer as the pressure layer, the inner layer of the air-tight Functional Yarn, and the protective Functional Yarn layer that is resistant to aging. Functional Yarn support. It is composed of Functional Yarn sheet and rigid material (steel plate, wire mesh, canvas). The latter can improve the compressive strength of the support and the impact of the shear strength is very small. The Functional Yarn bridge support can transfer the load of the bridge to the pier and can adapt to the bridge deformation and vibration reduction. Functional Yarn building support can reduce the impact of subway and surrounding driving vehicles and earthquakes on buildings.