Many substances have their hardness values, so what is the surface hardness value of acrylic board? What's the hardness of it? Generally speaking, it is expressed with H value, generally refers to its surface resistance to scratch, the surface of the ordinary acrylic plate can only reach about HB~1H, through the surface hardening of the acrylic plate can be promoted to 4H~6H. The higher the H value, the higher the surface hardness of the object. If we commonly use the Chinese pencil, it will be labeled with 4B and 5B according to the hardness of the pen core.

Combining these two guidelines here, the key points are the characteristic values and detection methods of acrylic diffusers:

The optical characteristic value of acrylic diffuser

Generally, for the optical function quality control of transparent and translucent plastics such as plate, sheet, film, tube, etc., the first priority is to pass inspection and evaluation of light transmittance and haze.

1. Light transmittance-the ratio of the luminous flux passing through the sample to the luminous flux hitting the sample, indicated by a percentage.

2. Haze——The ratio of the scattered luminous flux that deviates from the incident light direction through the sample to the transmitted luminous flux, indicated in percentage (for this method, only the scattered luminous flux that deviates from the incident light direction by more than 2.5 degrees is used to calculate haze) . The cloudy or turbid appearance of the inside or outside of a transparent or translucent material due to light scattering. It is indicated as a percentage of the ratio of the scattered luminous flux to the luminous flux through the material. It is an important parameter for the optical transparency of transparent or translucent materials.

Main Function of Acrylic Diffuser

The effect of the acrylic diffuser is to evenly diffuse the light of the guide plate, and there are also confusion points. The acrylic transmittance is 92%, PC 88%, and ps is about 80%. The transmittance of acrylic material is higher than that of PC, and the cost is low, although its anti-aging function Weak, precious PC data, strong anti-aging function. Acrylic diffuser, through chemical or physical methods, when refracted, light encounters two different refractive indexes in the center of the behavior, resulting in reflection and scattering of physical imagination. Inorganic or organic light diffusers are added to the base of the acrylic substrate, or light The microscopic features in the array sequence of different refraction directions reflect and scatter on the surface of the substrate, and then modify the light path and incident light to produce a light dispersion effect to achieve a perfect dispersion color.

What Kind of Acrylic Diffuser Will Deform?

As a Lighting Diffuser Factory, share with you. Acrylic diffuser panels have been around for nearly a hundred years, but all kinds of products that extend from acrylic have been developing and updating at a rapid pace, making people unavoidably dizzy.

Acrylic diffuser is likely to be twisted and deformed during processing. What should we do when such a situation occurs?

The following small suggestions hope to help you:

1. If it is the deformation caused by poor acrylic demolding, the number of push rods or the area can be appropriately increased, and the demolding slope can also be set to achieve the intention.

2. If the cooling method is not appropriate, resulting in lack of cooling time or uneven cooling, just increase the extended cooling time and adjust the cooling method.

3. If the molding conditions cause residual stress to cause deformation, it can be tested by increasing the mold and making the mold temperature uniform, reducing the injection pressure and increasing the resin temperature, perhaps using annealing to eliminate the stress.

4. If the acrylic molding shrinkage causes deformation, the mold plan can only be corrected.

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