The raw materials and technical parameters of glass fiber needle-punched filtration materials are as follows:
I. Raw Materials
The primary raw material for glass fiber needle-punched filtration materials is glass fiber. Specifically, it utilizes 100% glass fiber with a fiber diameter typically ranging from 3.8 to 6 microns. These glass fibers, after undergoing special treatment, are integrated with a base cloth (such as a glass fiber base cloth) to form a stable filtration layer.
II. Technical Parameters
The technical parameters of glass fiber needle-punched filtration materials may vary depending on product models, production processes, and customer requirements. However, the following are some common parameter ranges:
Thickness: Typically between 2.5 and 3.0 millimeters, with the specific thickness determined by product design and application needs.
Weight (Areal Density): A measure of the material's weight, commonly ranging from 850 to 1500 grams per square meter for glass fiber needle-punched filtration materials. Materials with different weights exhibit varying filtration efficiencies and physical properties.
Air Permeability: An indicator of the material's breathability, typically expressed in square meters per minute (m²/min). Glass fiber needle-punched filtration materials exhibit high air permeability, generally ranging from 12 to 16 m²/m²·min, which contributes to maintaining low filtration resistance.
Tensile Strength: A crucial metric for assessing the material's resistance to stretching. Glass fiber needle-punched filtration materials exhibit high tensile strength in both the warp and weft directions, often exceeding 2000N for a 5cm x 20cm specimen (i.e., the maximum force that can be applied to a sample with a width of 5cm and a length of 20cm).
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