From Filtration to New Energy: The Application Landscape of Wet-Laid Glass Fiber Nonwovens Continues to Expand
2026-05-26 11:17
1.What is wet-laid fiberglass nonwoven fabric?
It is an innovative industrial material produced by processing electronic-grade chopped fiberglass strands using a specialized wet-laid process. This unique manufacturing method endows it with a range of exceptional physical and chemical properties, serving as a critical foundation for high-performance composite materials.
Core Materials
• Alkali free Chopped Glass Fiber (E-Glass): Serves as the "skeleton," providing high strength and excellent chemical stability.
• Specialized Adhesive: Acts as the "binder," tightly bonding the fibers together to impart flexibility and overall structural integrity to the material.
Core Process: Wet Forming
Simulating the principles of papermaking, this process ensures the random and uniform distribution of fibers within a three dimensional space. This endows the final product with distinct advantages, such as a smooth surface, uniform pore size distribution, and stable air permeability.
2.Environmental Applications: Zeolite / Desiccant Rotor Support Substrates
In zeolite rotor and desiccant rotor systems, glass fiber paper serves as the core structural support material; it not only provides a substrate for the adsorbent to adhere to but also directly determines the rotor's overall structural integrity, heat exchange efficiency, and service life.
Zeolite Rotor
Featuring high temperature resistance and resistance to acid-base corrosion, the glass fiber paper framework ensures the stability of the zeolite adsorbent during high temperature desorption cycles and prolonged operation, effectively capturing and decomposing volatile organic compounds (VOCs) present in industrial exhaust gases.
Desiccant Rotor
With its high air permeability and exceptional dimensional stability, glass fiber paper serves as an ideal carrier for moisture absorbing agents (such as silica gel or molecular sieves), delivering efficient and long lasting dehumidification capabilities in applications requiring low-dew-point air processing particularly in precision manufacturing sectors such as lithium-ion battery production and electronics.
Technical Indicators | Unit | Specification 1 | Specification 2 | Specification 3 |
Grammage | g/㎡ | 23 | 25 | 30 |
Thickness (2.8kpa) | mm | 0.20 | 0.22 | 0.28 |
Combustible Content | % | 7-9 | 7-9 | 7-9 |
Longitudinal Tensile Strength (dry/wet) | N/5cm | ≥50 / ≥25 | ≥50 / ≥30 | ≥65 / ≥35 |
Density / | - | 0.11g/cm³ / fast | 0.11g/cm³ / fast | 0.11g/cm³ / fast |
3.Energy Applications: High Temperature Lithium Thionyl Chloride Battery Separator Paper
As a critical internal component of Lithium Thionyl Chloride (Li-SOCl₂) batteries, the separator paper must simultaneously exhibit excellent chemical stability, electrolyte absorption and retention capabilities, and reliable mechanical strength within a harsh electrochemical environment to ensure both battery safety and performance.
Technical Indicators | Unit | Specification 1 | Specification 2 | Specification 3 |
Grammage / Thickness (30kpa) | g/㎡/ mm | 35 / 0.24 | 55 / 0.30 | 73 / 0.45 |
Combustible content / Density | % / g/cm | 7-9 / 0.11 | 7-9 / 0.11 | 7-9 / 0.11 |
Air permeability / Longitudinal tensile strength | l/㎡/s / n/5cm
| 2600 / 75 | 2060 / 140 | 1620 / 170 |
Climbing height (s/2cm) / Liquid absorption capacity (1min) | s / g/g | 6 / 670 | 6 / 670 | 6 / 710 |
4.Medical Applications: Substrates for Biomedical Test Strips
In immunochromatographic rapid test strips such as early pregnancy tests and COVID-19 antigen tests glass fiber membrane serves as one of the core functional materials, directly determining the speed and accuracy of the detection.
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