What factors affect the strength of glass fiber surface mat

June 06,2022

What factors affect the strength of glass fiber surface felt? Glass fiber, also the inorganic glass fiber we often say, has many types and has been widely used in our lives. Generally, glass fiber is mainly used for the characteristics of heat preservation, cold preservation, sound insulation, and anti-burning lamps, so it is generally used in What are the factors that affect the strength of the glass fiber surface mat when it is used? Next, I will introduce it to you.

1. The effect of fiber diameter and length on tensile strength: Generally, the thinner the diameter of the glass fiber, the higher the tensile strength, but the strength of the same diameter fiber drawn at different drawing temperatures may also be different. The tensile strength of glass fibers is related to the length. With the increase of fiber length, the tensile strength decreases significantly. The influence of diameter and length on the tensile strength of glass fibers can be explained by the microcrack hypothesis. Because as the fiber diameter and length decrease, the microcracks in the fiber will correspondingly decrease, thereby increasing the fiber strength.

What are the factors affecting the strength of glass fiber surface mat?

2. The effect of chemical composition on strength: generally, the higher the alkali content, the lower the strength. The tensile strength of alkali-free fibers is 20% higher than that of alkali fibers.

3. The influence of the quality of the glass liquid on the strength of the glass fiber:

(1) Small bubbles in the glass liquid will also reduce the strength of the fiber;

(2) Practice has proved that the strength of crystalline fibers is lower than that of non-crystalline fibers;

4. The influence of molding conditions on glass fiber: Practice has proved that the strength of glass fiber drawn by bushing is higher than that of fiber drawn by glass rod method. In the glass rod method, the fiber produced by heating with gas is stronger than the fiber produced by heating with electric heating wire.

5. The influence of storage time on strength: the strength of glass fiber will decrease after being stored for a period of time, this phenomenon is called fiber aging.

6. The effect of load time on strength: The strength of glass fiber decreases with the increase of load time.

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