Since the uses of glass fiber and asbestos are similar in other places, we will wonder if they are the same? Although this is true on some issues, there are still big differences.
Glass fiber is a functional material raw material with excellent characteristics. It uses glass marbles or waste laminated glass as raw materials through high-temperature melting, metal wire drawing, yarn winding, loom and other processing techniques. In the end, a variety of products are produced. The diameter of the glass fiber drawing ranges from many μm to more than 20 meters, which is equivalent to 1/20-1/5 of a hair. Each bundle of chemical fiber precursors has hundreds or even more. Thousands of wire drawing are generally used as improved raw materials in restoration materials, electrical insulation layer materials, thermal insulation materials, power circuit base steel plates, etc., which are widely used in various social and economic industries.
Asbestos is a general term for chemical fiber-like siliceous minerals. It is an aluminosilicate mineral fiber widely used in fire-resistant panels for decorative building materials. It is also the only pure natural mineral fiber. It has excellent compressive strength and Excellent fire resistance and corrosion resistance, not easy to ignite, so it is widely used. There are many types of asbestos, the most common three are chrysotile (white asbestos), amosite (brown asbestos) and crocidolite (blue asbestos). Among them, chrysotile is more colorful and has the widest main application.
The difference between the two
1. Different materials: Glass fiber is a kind of functional material raw materials with excellent characteristics. Asbestos is also called "asbestos", which is a general term for pure natural fiber-containing aluminosilicate minerals.
2. Alkali resistance is different: Asbestos has acid resistance, alkali resistance and temperature resistance, and is also a quasi-steady state of heat and electricity. Among them, serpentine rock wool has good acid resistance and is hardly corroded by alkalis, but it has weak alkali resistance. Too weak organic matter can precipitate the magnesium oxide in the asbestos, making the asbestos chemical fiber compressive strength reduce. Glass fiber is generally only etched by concentrated alkali, hydrochloric acid and concentrated ammonium sulfate.
3. The tensile strength is different: Asbestos chemical fiber has a higher axial tensile strength. It is made of asbestos chemical fiber and sometimes reaches 374×10^4㎏/㎡, but it is not resistant to wrinkles. After multiple wrinkles The tensile strength is significantly reduced. The larger glass fiber is characterized by its high compressive strength. The compressive strength is 6.3～6.9g/d under standard conditions and 5.4～5.8g/d under wet conditions. The relative density is 2.54g/cm3. Good temperature resistance, no harm to compressive strength when the temperature reaches 300℃.