Foam concrete structural properties foam concrete
Because it is lightweight and porous, bubble concrete also has material properties such as thermal insulation, heat insulation, fire resistance, and frost resistance. It has good physical and mechanic…
Effect of temperature on concrete properties Jinzhai early strength antifreeze Huoqiu antifreeze price Lu’an concrete antifreeze
When the ambient temperature is low, the hydration reaction of cement is slow, which affects the growth of concrete strength. The test shows that every time the temperature decreases by 1°C, the hydra…
Briefly describe the properties and functions of diethylene glycol butyl ether?
Diethylene glycol butyl ether is also called Dafangbai. If you have never come into contact with or used it, you probably don’t know it exists. Plant something. So what are the characteristics of Da F…
Table of physical and chemical properties of 77 commonly used solvents
Solvent name Boiling point Solubility Toxicity Liquid Ammonia -33.35 Special solubility: can dissolve alkali metals and alkaline earth metals Highly toxic and corrosive Liquid sulfur dioxide -10.08 Di…
Effect of hard segments on polyurethane properties
The hard segment of polyurethane is composed of reacted diisocyanate Or it is composed of diisocyanate and chain extender, containing strong polar groups such as aryl group, urethane group, substitute…
Effect of soft segments on polyurethane properties
Oligomer polyols such as polyether and polyester form soft segments. Soft segments account for the majority ofPU, and the properties of PU prepared from different oligomer polyols and diisocyanates va…
Effect of hard segments on polyurethane properties
The hard segment of polyurethane is composed of reacted diisocyanate Or it is composed of diisocyanate and chain extender, containing strong polar groups such as aryl group, urethane group, substitute…
What are the excellent properties of modified polyurethane rigid foam?
Modified polyurethane rigid foam is made of Materials A and B are gelled by mixing and react from liquid to solid. Polyurethane rigid foam is a high-molecular thermosetting polymer and an excellent th…
Introduction to the flame retardant properties of polyurethane foam
Polyurethane foam contains flammable hydrocarbon segments , small density, large specific surface area, polyurethane without flame retardant treatment is combustible and will burn in case of fire. Onc…
PP flame retardants – Understand the properties and uses of PP flame retardants
PP flame retardant: a synthetic polymer with good fire resistance As people’s requirements for material performance continue to improve, flame retardants have gradually become an essential addit…
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