The effect of low temperature on the processing performance of phenyl vinyl silicone is mainly reflected in the following aspects:

1. Changes in physical state
Hardness and elasticity: As the temperature decreases, the hardness of phenyl vinyl silicone may increase, while the elasticity will decrease. This is because the thermal motion of rubber molecules is weakened at low temperatures, and the molecular segments are frozen, causing the material to become harder.
Flowability: At low temperatures, the fluidity of silicone is significantly reduced, which may affect the smooth progress of filling, mixing and extrusion in its processing.

2. Influence of processing
Vulcanization speed: Low temperature environment may slow down the vulcanization speed of phenyl vinyl silicone. Vulcanization is an important link in the silicone processing process, which determines the final performance and stability of silicone. The reduction in vulcanization speed may lead to a decrease in production efficiency and an increase in cost.
Mold filling: Due to the poor fluidity of silicone at low temperatures, mold filling may become difficult, and problems such as uneven filling or defects may occur.
Dimensional stability: During low-temperature processing, the shrinkage rate of silicone may change, resulting in poor dimensional stability of the processed parts.

3. Performance changes
Cold resistance: Although phenyl vinyl silicone itself has good cold resistance, processing at extremely low temperatures may have a certain impact on its final cold resistance. For example, too low a temperature may cause the destruction or rearrangement of the silicone molecular chain, thereby affecting its cold resistance.
Electrical properties: Low temperature has little effect on the electrical properties of phenyl vinyl silicone, but changes in parameters such as the insulation properties and resistivity of the material still need to be considered under extreme conditions.

4. Solutions
Preheating treatment: Preheat phenyl vinyl silicone before processing to improve its fluidity and processing performance.
Optimize process parameters: According to the actual situation under low temperature environment, adjust process parameters such as vulcanization temperature, time and pressure to ensure the smooth progress of the processing process and the final quality of the product.
Use of additives: Add appropriate amounts of additives such as plasticizers, softeners, etc. to silicone to improve its processing performance at low temperatures.

In summary, low temperature has a significant effect on the processing performance of phenyl vinyl silicone, but these effects can be effectively alleviated and the smooth progress of the processing process and the final quality of the product can be ensured through reasonable pretreatment, process optimization and use of additives.