What properties do optical fiber coatings need to test? Specific detection method
Optical fiber coating is a kind of special coating applied in the field of optical fiber communication, its main function is to protect and enhance the mechanical strength and optical performance of optical fiber, while reducing the loss and failure rate of optical fiber, improve the reliability and stability of optical fiber communication. Fiber coating is usually a polymer material that can be deployed and customized according to different application scenarios and requirements. In the optical fiber manufacturing process, the optical fiber coating is coated on the surface of the optical fiber, after high temperature drying and curing treatment, forming a hard, smooth, wear-resistant, corrosion-resistant protective film, so that the optical fiber has better mechanical properties such as tensile resistance, compression resistance, bending resistance, and can effectively reduce the loss of optical fiber transmission signal.
Detection performance
The following are the performance parameters of optical fiber coatings that need to be tested and their simple descriptions as follows:
| Performance parameter | Brief description |
|---|---|
| Tensile resistance | The adhesion of the coating to the optical fiber surface and the failure strength of the coating under tensile force |
| Wear resistance | Durability and wear degree of coatings under conditions of friction and wear |
| Optical property | The effect of coating on optical signal transmission, such as light transmittance, refractive index, etc |
| Corrosion resistance | Corrosion resistance of the coating in chemical media such as acid and alkali |
| Thermal stability | Stability and thermal decomposition characteristics of coatings at high temperatures |
| Viscosity and flow properties | The viscosity and flow properties of the coating have important effects on the uniformity and surface quality of the coating |
| Storage stability | Stability and quality retention of coatings in long-term storage |
What properties do optical fiber coatings need to test? Specific detection method
Detection method
The following is a detailed description of the test method for the performance parameters that need to be tested for optical fiber coatings:
Tensile resistance: Use a tensile testing machine to measure the failure strength of the coating under tensile force, or use a peel tester to measure the adhesion strength of the coating and the optical fiber surface.
Wear resistance: Wear test is carried out with a wear tester to simulate the durability and wear degree of the coating under different wear conditions.
Optical properties: Use spectrometers, microscopes and other equipment to measure optical parameters such as light transmission, reflectivity and refractive index of the coating to evaluate the effect of the coating on optical signal transmission.
What properties do optical fiber coatings need to test? Specific detection method
Corrosion resistance: salt spray test, corrosion test and other methods are used to simulate the corrosion resistance of the coating in different acid-base environments.
Thermal stability: A thermogravimetric analyzer is used to measure the thermal stability and thermal decomposition characteristics of coatings at high temperatures.
Viscosity and flow properties: Use viscometers, rheometers and other equipment to measure the viscosity and rheological properties of the paint and evaluate the flow and uniformity of the paint.
Storage stability: The storage stability test of the paint is performed to evaluate the stability and quality retention of the paint in long-term storage.
What properties do optical fiber coatings need to test? Specific detection method
We reminds you: different performance parameters may require different test methods and equipment, and there may be some industry standards and specifications, for the performance of optical fiber coating detection, you should also choose the corresponding detection methods and standards according to actual needs. At the same time, in order to ensure the accuracy and reliability of the test, it is necessary to strictly control the test conditions and standardized operations during the experiment.