diutan gum in gypsum mortar

The diutan gum in gypsum mortar.The diutan gum solution also belongs to the high pseudoplastic fluid. This pseudoplastic material has the characteristic that the viscosity decreases with the increase of the shear rate. This property can make the flowing fluid stop or stabilize the component easily with good shearing thinning function and high viscosity at very low concentrations. It has good thermal stability, still maintain a high viscosity when the temperature reaches 160 ℃. Diutan gum shows still very good function in not more than 15% salt solution and has good compatibility with cement, normal mixes, clinker, fillers, minerals and mud. It is able to improve the properties of hardened materials by controlling the flow, separation, precipitation and diffusion processes.
Diutan gum is an ideal product for highly mobile grouts applications such as grout cement, self-leveling floor mortar, underwater non-dispersible concrete, gypsum floor mortar, mud and high-flow concrete etc. In oil field application, especially at high temperature condition the high viscosity at low shear rate of diutan gum can optimize the rheological properties of oil displacement agents and enhance the transport capacity of suspended solids and solids. Diutan gum also has excellent settling control capability for flotation removal of lightweight materials, can improve weldability and hardness during hardening, as well as reduce vertical surface subsidence to mix facilitate and transport easily. In addition, as a stabilizer, 0.05 to 2% (w / v) of diutan gum is added to the solution at a pH of 10 to 14 to keep it stable for one year under high temperature conditions.

gypsum mortar

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