Comparison Of The Advantages And Disadvantages Of Different Material Diffusers On The Market
Aug 23, 2021
The diffuser plate is mainly composed of chemical particles (organic light diffuser or inorganic light diffuser) added to the base material of the diffuser as the scattering particles, so that the light is continuously refracted in two media with different refractive indexes when passing through the scattering layer. Reflect and scatter to produce the effect of optical diffusion.
Its main function is to fully scatter the incident light to achieve a softer and more uniform illumination effect. Therefore, it is widely used in liquid crystal display, LED lighting and imaging display systems. According to the material, the diffusers on the market include PMMA, PC , PS PVC and PETG, Jiankun Optics will take you to understand the advantages and disadvantages of different materials of diffuser through the form of table comparison, and help you fully understand the characteristics of each light diffuser material, so as to design suitable LED lighting products.
PMMA
Acrylic
1. High transparency, low turbidity
2. Strong weather resistance and UV resistance
3. Good processing performance, suitable for mechanical processing, thermoforming, laser cutting and engraving
4. Resistance to common solvents
5. Moderate price
The impact resistance is not good enough, but the impact-resistant modified acrylic sheet can meet the resistance requirements of most occasions.
PC
Polycarbonate
Strong impact resistance
1. Poor weather resistance and sensitivity to sunlight
2. The surface is not wear-resistant and easy to scratch
3. Poor solvent resistance
4. Large forming stress, easy to crack
5. Higher processing cost
6. High price
PS
Polystyrene
1. Good fluidity and easy processing
2. Cheap
1. Low transparency
2. Very poor weather resistance, easy to yellow
3. Dense smoke is produced during combustion
4. Poor solvent resistance and fragile
PVC board/light box cloth
Polyvinyl chloride
1. The sheet has a certain strength
2. Low price
1. Very low transparency
2. The surface is not wear-resistant
3. Poor weather resistance, easy to yellow and lose gloss
4. The light box cloth is troublesome to install and has low wind resistance
PETG
Modified polyester
1. Good ductility and high stretch ratio
2. Solvent resistance is stronger than PC
1. Very poor weather resistance and UV resistance
2. Low transparency and non-wearing surface
3. The price is too high
