Analysis of LED flexible neon light materials

 Performance analysis of PVC and silicone materials

Aiming at the flexible neon light strips using PVC and silicone materials on the market, the following comparative analysis is made on the materials themselves:

The temperature resistance of PVC material is about -15℃-80℃, the material feels hard, and it is easily affected by various outdoor factors. It has poor light and heat stability. After long-term sunlight exposure, it will decompose to produce hydrogen chloride and further autocatalytically decompose. Discoloration is caused, and the physical and mechanical properties also decline rapidly, leading to hardening, cracking and other phenomena. Not suitable for places that are particularly damp and corroded by acids, alkalis and salts. In addition, the burning of PVC will produce irritating and toxic gases.

Compared with PVC materials, silicone materials have the following advantages:

Excellent weather resistance: The material has good thermal stability and can maintain a normal soft state for a long time under an environment of -50 ℃ -150 ℃, without embrittlement, deformation, softening, aging, etc.

Excellent UV resistance: It can be exposed to strong sunlight for a long time (more than 5 years) without yellowing and aging, and can be used in outdoor environments for a long time.

Excellent corrosion resistance: Silica gel has stable chemical properties and does not react with any substances except strong alkalis and hydrofluoric acid. It can resist the corrosion of ordinary acids, alkalis, and salts. It can be used in seaside, chemical plants, gas stations, and yachts. Environment or facilities.

Excellent light transmittance: applied to the light strip, the light loss of the light strip can be reduced to a lower level.

Excellent tear resistance: excellent tear resistance, good physical and mechanical properties. After the silicone is molded, it can withstand any manual tearing, and the silicone will not be damaged or deformed (it will rebound completely after being pulled up).

Good thermal conductivity: The thermal conductivity of extruded silica gel is 27W/MK, while the thermal conductivity of PVC is 0.14W/MK, which can effectively dissipate heat when applied to light strips.

It can be seen that in the future LED flexible neon strip products, silicone materials will occupy a dominant position with their outstanding comprehensive performance.



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