Nitroxide mediated gradient copolymer binders: SikaRecent Research Landscape
Poor workability in alkaline binders results from rapid particle flocculation and inconsistent hydration. These innovations utilize specific copolymer architectures to control steric stabilization and flow behavior.
What technical problems is Sika addressing in Nitroxide mediated gradient copolymer binders?
Rapid loss of workability
(11)evidences
Uncontrolled ettringite formation causes internal pressure and structural cracking in cementitious materials. Preventing this expansion ensures long-term dimensional stability and mechanical integrity.
Inadequate mineral particle dispersion
(3)evidences
Steric hindrance and electrostatic repulsion are insufficient to prevent particle agglomeration in aqueous suspensions. Improving dispersion stability prevents sedimentation and viscosity spikes in industrial coatings.