sinofloc polyacrylamide (pam) used as drilling fluids at chile
APAM is a kind of water-soluble polymer.it is widely used in oil recovery,metallurgy,coal washing,chemicals,mineral processing,paper, textile,agriculture and other industries. NPAM is formed by homopolymerization of acrylamide.it is a kind of linear polymer with high molecular weight,low degree of hydrolysis and very stong flocculation ability.
A thermal-initiated polymerization procedure is described for the controlled preparation of monodispersed polyacrylamide (PAM) hydrogel microspheres. A coaxial microfluidic device was designed to disperse uniform drops (∼500 μm) of acrylamide monomer aqueous solution into n-octane. Using a delay loop immersed into a heat bath, the polymerization is initiated and carried out in separate
