CP Kelco Diutan

Diutan biopolymer is an addition to our portfolio developed specifically for applications that require very high suspending characteristics such as gypsum and hydraulic cementitious materials, and oilfield drilling fluids. It imparts high solution viscosity at low gum concentrations while exhibiting little solution viscosity change over a wide temperature range.

Source: Controlled aerobic fermentation
Function: Viscosity Modifying Agent (VMA)
Description: Diutan gum was developed specifically for use with cementitious materials and the newest class of superplasticizers. It enables formulators and designers to improve the performance of hardened materials by controlling flow, segregation, sedimentation and bleed. In addition, diutan develops a higher degree of pseudoplasticity, greater low shear rate viscosity (LSRV), and improved viscosity retention at elevated temperatures when compared to traditional polymeric rheology modifiers used in drilling, workover or completion fluids.

Diutan gum belongs to a class of rheology modifying agents possessing pseudoplastic behavior. Pseudoplastic materials are characterized by viscosity which increases and decreases virtually instantaneously in response to the removal and application of shear. This property results in fluids which readily flow but are capable of suspending or stabilizing components.