Basalt ore is a kind of natural environmental protection clean raw material. The composite made of basalt fiber has natural high strength, stability, durability and electrical insulation against corrosive media. With the continuous research and development of basalt composites, it will reduce costs, improve and stabilize quality, rapidly expand output and expand application fields, and will be increasingly widely used in all walks of life with greater breadth and depth

 

　　In the field of automobile manufacturing, the fibers mainly used in automobile filter materials include viscose fiber, polyester fiber and polyolefin fiber, which are mainly used for engine intake filtration, cabin air filtration and automobile exhaust purification filtration. However, these fibers have poor heat-resistant effect, especially in tail gas filtration, and their service life is not long. The mechanical properties of basalt fiber far exceed those of polyester fiber and polyolefin fiber, and its acid-base resistance far exceeds those of these two fibers. The filter material made of basalt fiber has high burst resistance, good tensile strength, high cost performance, complete degradation and excellent filtration performance. It is the first material of high-temperature filter material in the future. Basalt fiber automobile filter material can filter and separate the solid particles in automobile exhaust under high temperature conditions, reduce the urban pollution caused by automobile exhaust, and its filter material has the advantages of long-term use under high temperature conditions and stable performance.

 

　　Reinforced fiber is an important part of automotive friction materials. The selection of fiber has an important impact on the wear properties of friction materials. At present, automotive friction reinforcement materials mainly include steel fiber, mineral fiber, glass fiber, organic fiber and high temperature resistant polymer fiber. However, there are more or less some problems in its use, such as asbestos dust seriously pollutes the environment, has carcinogenic effect and directly endangers human health. Now its use has been restricted; It is easy to produce low-frequency noise when in use; However, the glass fiber material has large wear, poor wading performance and high noise; The reinforced material produced by carbon fiber has excellent properties; Other fiber reinforced materials have poor wettability and complex manufacturing process.

 

　　Basalt fiber not only has high strength, good thermal stability, not easy to damage, low wear, stable friction coefficient, but also has appropriate price. The material density of basalt fiber is moderate, its tensile strength is equivalent to that of glass fiber, and the wear resistance of basalt fiber reinforced friction material is higher than that of asbestos fiber, steel fiber and glass fiber. Through the performance test of basalt chopped fiber reinforced brake pad, it is considered that it has the characteristics of stable high-temperature friction coefficient, low heat decay and low braking noise, and is suitable to be used as the main reinforcement of friction material. The material is conducive to solve the "heat recession" phenomenon of traditional automobile brakes and reduce traffic accidents. Therefore, the application of basalt fiber in friction reinforcement materials is not only conducive to increase the service life of automobile friction materials and improve the service temperature of friction materials, but also solve various adverse factors of current friction materials. The high temperature resistant structural composite made of basalt fiber is used as friction reinforcement materials such as automobile brakes and clutches, which not only helps the high-speed development of automobile, but also helps to improve the safety performance of automobile. Its development has broad market prospects.