The performance of industrial fabrics directly affects their applicability and service life in specific industrial environments. The performance requirements for industrial fabrics vary greatly in different application scenarios, but the core indicators mainly include three categories: mechanical performance, environmental resistance, and functional indicators.

1. Mechanical properties

The mechanical properties determine the performance of industrial fabrics under stress conditions, mainly including:

Tensile strength: measures the maximum load-bearing capacity of a fabric under tension, usually expressed in terms of fracture strength (N/5cm or MPa). For example, the fracture strength of high-strength polyester industrial fabric can reach 800-1000N/5cm, suitable for conveyor belts, lifting belts, etc.

Tear strength: Reflects the ability of a fabric to resist tearing and expansion, such as geotextiles that require high tear strength to prevent construction damage.

Wear resistance: measures the durability of fabrics in frictional environments, such as conveyor belts that need to pass the Martindale abrasion test (50000 times).

Elasticity and Elongation: Some applications, such as protective clothing, require fabrics to have a certain degree of elasticity, while conveyor belts require low elongation (<10%) to ensure dimensional stability.

2. Environmental resistance performance

Industrial fabrics need to adapt to complex environments, with key indicators including:

Temperature resistance: For example, aramid fabric can withstand high temperatures of 200-300 ℃ for a long time, while fiberglass fabric can even withstand 1000 ℃ for a short time.

Chemical corrosion resistance: Chemical filter cloth needs to resist acid and alkali erosion, such as PTFE coated cloth that can withstand extreme environments with pH 1-14.

Weather resistance: Outdoor fabrics (such as geotextiles) need to be UV resistant, usually requiring a strength retention rate of 80% after UV aging testing.

3. Functional indicators

According to special purposes, industrial fabrics need to meet additional functional requirements:

Filtration efficiency: The retention accuracy (such as 1-100 μ m) and air permeability (such as 100-500L/m ² · s) of the filter cloth directly affect the separation effect.

Flame retardancy: The protective clothing fabric must meet the EN 11612 standard and have a Limiting Oxygen Index (LOI) of 28%.

Antistatic properties: The surface resistance of fabrics used in the electronics industry should be 10 ^ 9 Ω to prevent the accumulation of static electricity.

Waterproof/Breathability: If the tarpaulin needs to meet the ISO 811 waterproof rating (5000mm water pressure) while maintaining breathability.

Testing standards and quality control

The performance of industrial fabrics needs to be verified by authoritative standards such as ISO, ASTM, GB, etc. For example:

The tensile strength test refers to ISO 13934-1;

Wear resistance test refers to ASTM D3884;

The flame retardancy test shall refer to GB/T 5455.

The performance indicators of industrial fabrics need to be comprehensively considered based on specific application scenarios. With the advancement of technology, high-strength, lightweight, and environmentally friendly industrial fabrics (such as carbon fiber reinforced fabrics) are becoming a development trend, driving the industry to upgrade towards high performance and sustainability.