Polyester Fiber Nonwoven Fabric: Essential for Protecting Electrical ComponentsIntroductionPolyester fiber nonwoven fabric has become an indispensable material in the electronics industry, particularly for protecting sensitive electrical components. Its unique properties, including durability, therm...

Polyester Fiber Nonwoven Fabric: A Reliable Choice for Electrical Insulation in Harsh EnvironmentsIntroductionIn the field of electrical engineering, insulation materials play a crucial role in ensuring the safety, efficiency, and longevity of electrical components. Among various insulation material...

The adjustment of the surface friction coefficient of nonwoven fabrics is mainly achieved through three dimensions: fiber surface treatment, structural design, and functional additives. Fiber surface treatment is a direct method. Plasma treatment can introduce polar groups or micro/nano-scale rough structures onto the fiber surface, thereby altering the interaction forces at the contact surface. Low-temperature plasma treatment, while maintaining the fiber's intrinsic properties, adjusts the friction coefficient by changing the surface chemical composition. Physical vapor deposition (PVD) technology can construct low-friction coatings such as diamond-like carbon films on the fiber surface, significantly reducing sliding resistance.

Optimizing the porosity of flame-retardant nonwoven fabrics requires systematic control from three dimensions: fiber characteristics, web-forming process, and consolidation method. Fiber fineness and length are fundamental factors affecting porosity. Finer fibers form a denser network structure, reducing the average pore size; while longer fibers increase pore connectivity through entanglement. By adjusting the fiber crimp and cross-sectional shape (e.g., hollow or irregular cross-sections), the spatial arrangement of fibers during stacking can be altered, thereby precisely controlling the porosity distribution. Mixing fibers with different properties (e.g., coarse-fine blends or long-short fiber composites) can achieve a tiered pore distribution, meeting the requirements of specific applications for air permeability and filtration accuracy.

The flame-retardant mechanism of flame-retardant nonwoven fabrics for electrical applications is mainly based on the synergistic effect of chemical and physical flame retardancy. Chemical flame retardancy is achieved by adding flame retardants to polyester fibers. Common flame retardants include phosphorus-based, nitrogen-based, and halogen-based compounds.