Glass fiber is an inorganic non-metallic material with excellent properties. It has many types. Its advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength. However, its disadvantages are brittleness and poor wear resistance.

Main features: Raw materials and their applications: Glass fiber has higher temperature resistance than organic fiber, is non-flammable, corrosion-resistant, has good heat and sound insulation, high tensile strength and good electrical insulation. But it is brittle and has poor wear resistance. Used to make reinforced plastics (see color picture) or reinforced rubber. As a reinforcing material, glass fiber has the following characteristics. These characteristics make the use of glass fiber much more extensive than other types of fibers, and its development speed is also far faster. Its characteristics are listed below:

(1) High tensile strength and small elongation (3%).

(2) High elastic coefficient and good rigidity.

(3) The elongation within the elastic limit is large and the tensile strength is high, so it absorbs large impact energy.

(4) It is an inorganic fiber, non-flammable and has good chemical resistance.

(5) Low water absorption.

(6) Dimensional stability and heat resistance are good.

(7) It has good processability and can be made into products of different shapes such as strands, bundles, felts, and woven fabrics.

(8) Transparent and can transmit light.

(9) The development of a surface treatment agent with good adhesion to resin has been completed.

(10) Cheap price.

(11) It is not easy to burn and can be melted into glass-like beads at high temperatures.

Identify high-alkali fiberglass?

The simple way to test is to put the fiber in boiling water and boil it for 6-7 hours. If it is high-alkali glass fiber, after boiling in boiling water, all the fibers in the warp and weft directions will become loose. According to different standards, glass fibers are classified in many ways, generally from two perspectives: length and diameter, composition and performance. standard test

Glass fiber has high tensile strength and small elongation (3%). The test method standards are: GB/T14338-1993 Synthetic short fiber crimp test method, GB/T15232-1994 Determination of tensile breaking strength of textile glass fiber mat, GB/7689.5 Determination of tensile breaking strength and breaking elongation of glass fiber, GBT15232-1994 Determination of tensile breaking strength of textile glass fiber mat, GB/T7689.5-2001 | Test methods for reinforced materials woven fabrics Part 5: Glass fiber Determination of tensile breaking strength and breaking elongation, etc. The single fiber tensile performance test should use a high-strength and high-mode fiber strength tester that can test glass fibers.