Recycled rubber powder is a powdered material processed by washing, cutting, pulverizing and decontamination of waste rubber products. It is used as a filler in the rubber products industry and non-rubber products industry. In theory, POE is added as a main material to produce soles. Appropriate amount of recycled rubber powder can further improve the wear resistance, wet skid resistance and aging resistance of POE soles. What is the reaction mechanism of recycled rubber powder in POE soles? What is the most suitable filling method and what are the specific effects?
1. Recycled rubber powder affects the physical properties of POE soles
Recycled rubber powder is a powdered rubber material processed from waste rubber products. Its tensile strength and hardness are greater than POE. Therefore, the tensile strength and hardness of POE soles will increase with the increasing amount of recycled rubber powder. After the intensity increases to a certain value, the constant compression ratio first decreases and then increases with the increase of the amount of reclaimed rubber powder. After reaching a certain peak value, it decreases with the increase of the amount of rubber powder; however, the reclaimed rubber powder is filled in POE exists in a phase-separated state. Generally, the elongation at break of POE decreases as the amount of reclaimed rubber powder increases, and is constant after a certain value.
2, recycled rubber powder affects the wear resistance and slip resistance of POE soles
Recycled rubber powder has good elasticity, wear resistance and anti-slip property. It is used in the production of POE soles. The wear resistance of the sole will increase with the increase of the amount of rubber powder. The anti-slip coefficient increases with the content of reclaimed rubber powder. First increase to a certain peak and then decrease.
Recycled rubber powder can improve the tensile strength, hardness, wear resistance and anti-slip property of the sole in the production of POE soles, but this growth interval is limited. After reaching a certain value, the rubber powder effect is reduced and finally remains unchanged; regeneration The rubber powder itself has poor elongation at break. When the amount of recycled rubber powder in the POE sole is large, the main factor affecting the elongation of the sole is the recycled rubber powder. It can be seen that the amount of recycled rubber powder in the POE sole should be controlled within a certain range. Inside.
POE is a polyolefin thermoplastic elastomer with low density, high bending, high low temperature impact resistance, easy processing, and rubber-like elasticity at room temperature. The rubber sole produced has high elasticity, high strength and good elongation at low temperature. It can maintain good elasticity and softness; add appropriate amount of recycled rubber powder in POE soles (research shows that adding 40-50 parts of recycled rubber powder POE sole has the best comprehensive performance) can reduce raw material cost and ensure POE sole Performance and service life.