Yuniu Blogs

We're here to keep you up to date with all the latest happenings in the fiberglass industry. Home » How much do you know about fiberglass fabric?

How much do you know about fiberglass fabric?

  一、The difference between the material of fiberglass cloth and glass!

  Fiberglass fabric is not much different from the main material of glass, mainly due to the different material requirements during production, so there are some differences in the formula. The silica content of flat glass is about 70-75%, and the silica content of glass fiber is generally below 60%.
Glass is an inorganic material melted at high temperature (above 800 degrees, daily glass is generally melted at 1100 degrees), and no chemical changes will occur below the softening point temperature. Above the softening point temperature, it will only soften, melt or decompose, and will not burn.

  Fiberglas cloth is to draw glass into very fine glass filaments, and the glass filaments at this time have good flexibility. Fiberglass cloth is made by spinning glass fiber into yarn, which is then woven through a loom. Because the c glass fiber yarn is extremely thin and the surface area per unit mass is extremely large, the temperature resistance performance is reduced. It's like melting a thin copper wire with a candle.

  But glass doesn't burn. The burning we can see is actually the resin material coated on the surface of the fiber glass fabric to improve the performance of the fiber glass fabric, or the attached impurities. After pure glass fiber cloth or some high temperature resistant coatings, it can be used to make products such as refractory clothing, refractory gloves, and refractory blankets. However, if it is in direct contact with the skin, the broken fibers will irritate the skin and it will be very itchy.

  Generally, the diameter of conventional glass fiber monofilament is more than 9-13 microns, and the glass fiber floats below 6 microns can directly enter the pulmonary ducts, which can cause respiratory diseases. Therefore, special attention should be paid, and most of them are imported below 6 microns. Professional masks must be worn during production operations. If exposed frequently, it may be inhaled into the lungs and cause pneumoconiosis.
If glass fiber is on the body, those with bad skin will be allergic and itchy, but generally not harmful, and those with bad skin may have small bags, which is an allergy phenomenon, just take some anti-allergic medicine.
If it is difficult to remove it from clothes, pat it a few times in a windy place. After washing it and drying it, it is easier to remove it by patting and batting with branches, etc., and pat it several times!


 二、About the role of glass fiber cloth

  The main use is the glass fiber reinforced plastic industry (about 70%). The construction industry also uses glass fiber cloth, the main function is to increase the strength. Also used for building exterior wall insulation, interior wall decoration, interior wall moisture-proof and fireproof, etc.

  Fiberglass cloth varieties: fiberglass mesh lowes, fiberglass woven fabric,plain weaving, multiaxial fabric, fiberglass wall cloth, fiberglass electronic cloth.
Glass fiber effect:
  1. Enhance rigidity and hardness. The increase of glass fiber can improve the strength and rigidity of plastics, but the toughness of the same plastics will decrease. Example: flexural modulus;
  2. Improve heat resistance and thermal deformation temperature; take nylon as an example, nylon with glass fiber is added, and the thermal deformation temperature is increased by at least two times, and the temperature resistance of general glass fiber reinforced nylon can reach more than 220 degrees
  3. Improve dimensional stability and reduce shrinkage;
  4. Reduce warping deformation;
  5. Reduce creep;
  6. For the flame retardant performance, because of the candle wick effect, it will interfere with the flame retardant system and affect the flame retardant effect;
  7. Reduce the gloss of the surface;
  8. Increase hygroscopicity;
  9. Glass fiber treatment: The length of glass fiber directly affects the brittleness of the material. If the glass fiber is not handled well, the short fiber will reduce the impact strength, and the fiberglass polymer composite will improve the impact strength. In order to keep the brittleness of the material from being greatly reduced, it is necessary to select a certain length of glass fiber.

  Conclusion: To obtain good impact strength, the surface treatment of the glass fiber and the length of the glass fiber are very important!
Fiber content: The fiber content of the product is also a key issue. my country generally adopts integer content such as 10%, 15%, 20%, 25%, 30%, etc., while foreign countries determine the content of glass fiber according to the use of the product.


  三、How to distinguish the quality of glass fiber cloth?

  Glass fiber cloth is based on glass fiber woven fabric and is coated with polymer anti-emulsion immersion. It is widely used in wall reinforcement materials, reinforced cement products, reinforced plastics, and skeleton materials of rubber products. Many friends are using it. Fiberglass cloth, but how to distinguish between good and bad fiberglass cloth? Today, the editor will share with you how to distinguish between good and bad fiberglass cloth.

  Method 1: Judge the quality by observing the glass fiber cloth on the surface. The glass fiber cloth with better quality has a clean surface, the warp and weft lines of the grid are even and straight, the toughness is better, and the mesh is relatively uniform. The poor quality glass fiber cloth has uneven grids and poor toughness.

  Method 2: Glass fiber cloth for waterproofing with good chemical stability and good quality has relatively stable chemical properties, alkali resistance, acid resistance, water resistance, cement corrosion resistance, and other chemical corrosion resistance, and is relatively safe to use.

  Method 3: Judging the quality of the glass fiber cloth by color, the color of the glass fiber cloth with better quality is glossy and uniform, while the glass fiber cloth with poor quality is not only thorny to touch, but also darker. turbid.

  Method 4: Judge the quality of the glass fiber cloth by stretching the glass fiber cloth. Good glass fiber cloth is not easy to be deformed, and can be restored by stretching, while glass fiber cloth with poor quality is difficult to restore to its original shape through stretching, which affects normal use.