Mist Pump manufacturers share knowledge about rubber:
1. Raw material quality shakes
Because the raw materials are different, the manufacturing method is different, the technology is different, and the batches are different, the raw materials are very different. The composition technology of raw rubber: the difference in polymerization temperature, catalyst, monomer composition, etc., leads to different solubility. Changes in purity, moisture, ash, pH, physical properties, etc.
2. Poor storage conditions
Temperature: The solubility of the compounding agent in rubber usually rises and falls with the temperature
Time (pressure\humidity): The pressure on the rubber during storage, the humidity of the surrounding air and the time also have an effect on the solubility of the compounding agent, which usually has little effect. However, if the pressure is high, the compounding agent in the rubber at the pressured part will form a crystal nucleus, which is divided out of the rubber surface and constitutes frost spray; if the humidity of the air is too high, the compounding agent with large polarity in the rubber The effect of non-polar) is weakened, the solubility of the compounding agent is reduced, and then the frost is caused; the longer the storage time, the more obvious the frost on the rubber surface, because the temperature and humidity of the air in the storage environment vary with the season, and are not the same Larger, it is easy to constitute a change in the solubility of the compounding agent, and then cause frost.
3. Rubber aging: Most of the rubber aging causes damage to the intact and balanced network structure of the vulcanized rubber, and then also damages the chemical or physical connection between the various compounding agents and the raw rubber molecules and the compounding agent in the rubber system, reducing The solubility of the compounding agent in the rubber system. Therefore, the compounding agents whose parts are over-satisfied will be freely separated from the rubber and constitute a frost spray.
The above content is organized and shared by Glass Ball Wholesaler , hoping to help those in need.