How to fill the gap of the hottest high-end automo

2022-08-04
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How to fill the gap of high-end automotive textile materials

in the United States, Germany, Japan and other countries with developed automobile industry and high-speed trains, the research on automotive interior textiles has made the price of recycled particles rise to a very deep level, and the industrialized production technology is also very advanced. The R & D and production of textile interior materials for automobiles and high-speed trains in China started late and is still in the primary stage. At present, the domestic textiles for automobiles and motor cars can not meet the needs of the rapid development of the automobile industry and high-speed trains, and the market gap is large, especially the non-woven interior materials for automobiles and motor cars with special properties such as flame retardant, heat insulation, water repellent, antifouling, sound absorption, moisture absorption, antistatic, etc, It also needs to be imported from abroad. China's annual import of automotive textiles amounts to 4billion US dollars, and the import of high-speed train interior textiles is even larger

selection and application of functional fibers

the fibers that can meet the performance requirements of high-end automotive nonwoven interior materials mainly include polyester fiber, preoxygenated silk, aramid and other new high-performance gold testing machines. The maintenance and protection fibers of steel bar zigzag testing machines are popularized. Let's look at its characteristics one by one:

polyester fiber (polyester): due to the poor moisture absorption performance of polyester fiber, the moisture regain under general atmospheric conditions is 0.4%~0.5%, so the fiber performance changes little under dry and wet conditions. Polyester fiber has high strength and good elastic recovery. When the elongation is 3%, the elastic recovery rate meets the new utilization requirements of 90%~95%. Polyester fiber has high modulus, high rigidity and good wear resistance. The characteristics of polyester fiber can meet the performance requirements of high resilience and wear resistance of nonwoven interior materials for high-speed train seats. Polyester hollow fiber can also help to improve the thermal insulation performance of products. To meet the safety performance requirements, the materials must be flame retardant

polyacrylonitrile preoxidation fiber (referred to as preoxidation fiber): this fiber is an intermediate product for manufacturing carbon fiber. It is a new type of high-temperature resistant organic fiber developed with the rise of carbon fiber. Its biggest characteristics are: first, it is highly flame retardant, and its high-temperature resistance is higher than that of aramid fiber. At the same time, it has stable fiber performance at 300 ℃ and can withstand more than 3 minutes at 900 ℃ flame, with an oxygen limit index greater than 50%, and the fiber does not melt during combustion It does not soften and shrink, and has no molten drops (not scalding the body). It is a quasi incombustible product; Second, good heat insulation effect; The third is acid and alkali corrosion resistance, chemical environment resistance and radiation resistance; At the same time, it has good processing performance. Proper addition of preoxidized fiber can meet the mechanical and safety requirements of nonwoven interior materials for high-speed train seats

aromatic polyamide fiber (aramid): Aramid 1313 is a new type of high temperature resistant fiber with corrosion resistance, chemical resistance and flame resistance. Aramid 1414 is a new type of high-strength fiber. Its strength can reach 193.6cn/tex, and its elongation at break is 4%. The initial modulus is much higher than that of other fibers, about 11 times that of polyamide fiber and 6 times that of polyester fiber. The fiber also has good heat resistance and chemical resistance. It can meet the mechanical and safety performance requirements of nonwoven interior materials for high-speed train seats

other new high-performance fibers: high performance fibers are high-quality engineering materials with high mechanical properties, high strength and high elastic modulus; High performance fiber can withstand high temperature, with good dimensional stability and low thermal shrinkage at high temperature; The density of high-performance fiber is low, which is conducive to the lightweight of products. Organic and inorganic high performance fibers are corrosion resistant

note: 5 Relative error of torque indication value: ± 1% the reprinted contents are indicated with the source. The reprint is for the purpose of transmitting more information, and does not mean to agree with their views or confirm the authenticity of their contents

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