What is polyurethane spraying and what are its advantages and disadvantages
1. What is polyurethane spraying? Polyurethane spraying uses isocyanate and polyether as the main raw materials. It is a high molecular polymer that is foamed on-site through high-pressure spraying un…
Advantages, disadvantages and application scenarios of Haiderneng reverse osmosis membrane
Haidereng reverse osmosis membrane, membrane separation technology, water treatment, seawater desalination, membrane materials, household water purifiers, industrial reverse osmosis equipment In today…
HydraNeng 4040 reverse osmosis membrane parameters and advantages and disadvantages in use
American HydraNeng 4040 is a low-pressure reverse osmosis membrane used for source water with medium salt content. For ordinary heavy metal ions, carbonates, organic matter, colloidal substances, bact…
[Shanghai calcium stearate supplier] Advantages and disadvantages of calcium stearate in general plastics
Calcium stearate is a white light crystalline powder. The melting point is 179~180℃, and it will decompose under high heat. Insoluble in water, cold ethanol and ether, soluble in hot benzene, toluene …
The duality of advantages and disadvantages of bleeding and the harmfulness of segregation
While bleeding occurs, the mixture itself is also settling and shrinking. As a result, the water content of the surface mixture will continue to increase before initial setting, and the water-cement r…
What are the advantages and disadvantages of PVC heat stabilizers?
Thermal stabilizermust be able to capture the autocatalytic HCL released by PVC resin, or be able to react additively with the unstable polyolefin structure produced by PVC resin to prevent or Reduce …
What are the advantages and disadvantages of pump truck lubricating agent and cement mortar lubricating agent?
Many friends in the concrete business community have always been very confused about whether to continue to use traditional cement mortar to moisten pipes or to use lubricant to moisten pipes. Why can…
