How to judge the transparency of liquid silicone rubber?
The transparency of liquid silicone rubber can be evaluated by the following technical indicators:
1. Transmittance
Definition: Transmittance refers to the ratio of the luminous flux passing through the silicone sample to the incident luminous flux under specified conditions, expressed as a percentage. The higher the transmittance, the better the transparency of the silicone.
Measurement: Transmittance is a quantitative indicator that directly reflects the transparency of silicone, and is usually measured using professional optical instruments.
2. Haze
Definition: Haze is an indicator that reflects the degree of light scattering inside silicone, and together with transmittance, it determines the transparency of silicone.
Measurement: Haze is also measured by professional optical instruments, similar to transmittance measurement.
3. Appearance
Observation: The appearance of liquid silicone rubber can directly reflect its transparency. Transparent liquid silicone rubber should appear clear and free of impurities.
Note: When observing the appearance, it is necessary to ensure that the sample is under the same conditions, such as temperature, humidity, etc., to avoid the influence of external factors on the observation results.
4. Impurity content
Definition: Impurity content refers to the content of other substances in liquid silicone rubber except the main components.
Influence: The higher the impurity content, the lower the transparency of liquid silicone rubber. Therefore, controlling the impurity content is an important means to improve the transparency of liquid silicone rubber.