2results about How to "Improve low temperature brittleness" patented technology

This utility model relates to the field of traditional Chinese medicine processing technology, and discloses a medicinal material pulverizing device for preparing medicinal soups, including a processing shell and a support plate. The support plate is fixedly sleeved on the lower part of the outer wall of the processing shell, and a crushing component for pulverizing medicinal materials is installed in the upper part of the processing shell. During the crushing process, the water-cooling component cools the hollow pulverizing roller, effectively reducing the frictional temperature rise during pulverization, preventing the medicinal materials from softening and sticking together at high temperatures, and simultaneously enhancing the low-temperature brittleness of the medicinal materials, making them easier to pulverize, thereby improving pulverization efficiency and fineness. It also effectively prevents heat-sensitive components in the medicinal materials from being affected by high temperatures, ensuring the stability of the effective components. Simultaneously, a fan starts working, blowing air into the interior of the hollow pulverizing roller, significantly enhancing the heat dissipation effect. The forced airflow carries away the heat accumulated inside the hollow pulverizing roller, improving the heat dissipation and cooling effect.

The application discloses a kind of composite PP-R pipe materials and preparation method and application thereof, it is related to PP-R pipe material technical field, the composite PP-R pipe material, including by inside to outside sequentially connected PP-R inner layer, impact resistance oxygen barrier layer and PP-R outer layer, the impact resistance oxygen barrier layer includes parylene, polyglycolic acid, compatibilizer.The composite PP-R pipe material adds impact resistance oxygen barrier layer as middle layer in it, the material of the impact resistance oxygen barrier layer uses the cooperation of parylene and polyglycolic acid (PGA), with excellent mechanical properties and gas barrier property, and can keep structural performance stable under low temperature environment below-10 DEG C, can be applied in PP-R pipe material system to improve its low temperature brittleness, improve low temperature impact resistance.