The role of adsorption bridge
The mechanism of adsorption bridging mainly refers to the adsorption and bridging of polymer materials and colloidal particles. It can also be understood that the two large identical rubber particles are connected together due to the presence of a different rubber particle. Polymer flocculants have a linear structure, and they have chemical groups that can interact with certain parts of the surface of the colloidal particles. When the high polymer is in contact with the colloidal particles, the groups can react with the surface of the colloidal particles to adsorb each other. The rest of the polymer molecule is stretched in solution and can be adsorbed to the colloidal particles with vacancies on the other surface, so that the polymer acts as a bridging connection. If there is less colloidal particles, the above-mentioned polymer stretched part does not adhere to the second colloidal particles, and the stretched part will be adsorbed on other parts sooner or later by the original colloidal particles, and the polymer cannot function as a bridge, and the colloidal particles It is in a stable state. When the dosage of the high-molecular flocculant is too large, the surface of the rubber particle will be saturated to produce a re-stabilization phenomenon. If the briquettes that have been bridged and flocculated are subjected to intense long-term agitation, the bridging polymer may be detached from the surface of the other colloidal particles and re-rolled back to the surface of the colloidal particles, resulting in a stable state.