What are the different filter materials used in medium-efficiency filters?

1. Material

The base material of the glass fiber filter material is a medium-alkali continuous glass fiber twill structure, which is made of high-temperature melt-blown and has a thickness of 0.3~0.35mm. Chemical fiber filter materials are traditionally made of chemical fibers through glue spraying and needle punching. Due to process limitations, the fibers are relatively thick, with a diameter of more than 10um.

2. Characteristics

Glass fiber filter materials are generally used in higher temperature environments, can be used continuously at 250°C, and can withstand instantaneous high temperatures up to 350°C. Chemical fiber filter materials can only withstand temperatures of about 80 degrees. At higher temperatures, problems such as deformation and melting may occur, making it difficult to ensure the safety and stability of the product.

4. Application scope

Glass fiber filter material is widely used in high-efficiency filter materials and has always been an ideal and reliable filter material for bag-type medium-efficiency filters. Chemical fiber filter materials are widely used in coarse- and medium-efficiency plate and bag filters; composite non-woven fabrics can also be used in medium- and high-efficiency and even sub-high-efficiency filters.

5. Filtering accuracy

From the perspective of filtration accuracy, the manufacturing cost of chemical synthetic fiber filter materials is usually low and can meet general industrial needs. However, compared with glass fiber filter materials, its filtration effect may be slightly inferior.

   It can be seen that glass fiber and chemical synthetic fiber, as filter materials, have certain differences in material, structure, characteristics, application range, and filtration accuracy. Glass fiber is suitable for filtration under extreme environmental conditions such as high temperature, strong acid, and alkali, and has high filtration accuracy. Chemical synthetic fibers are suitable for general industrial filtration needs, have good flexibility, and have low manufacturing costs. Choosing the appropriate filter material requires judgment and selection based on specific application scenarios and requirements.