51results about How to "High thickening efficiency" patented technology

The invention discloses polyurethane and a preparation method and an application thereof. The structural formula of the polyurethane is shown in the specifications, wherein R and R' are the same or different; U refers to a urea bond; A refers to a polyether diols residue; B refers to a diisocyanate residue; and m refers to any integer of 1-10. A thickener preparation prepared from the polyurethane or a composition thereof is suitable for thickening a water-containing system, and can be applied to the industries of emulsion paint, varnish, bonding agents, leather, ink, cosmetics and the like.

An aqueous thickener blend composition comprising an aqueous hydrophobically-modified alkali soluble or alkali swellable thickener composition and an acid-suppressible associative thickener composition, affording high thickening efficiency and providing an aqueous coating composition comprising such aqueous thickener blend composition with good heat-age stability and color float stability.

The present invention relates to a polyurethane polymer suitable for viscosity adjustment of an aqueous high solvent system and a composition containing the same. The polyurethane polymer comprises, on the polymer backbone, a hydrophobic structure having a functional group reactive with an isocyanate bond, and one or more monofunctional hydrophobic end-capped structures, the hydrophobic structure having a functional group reactive with an isocyanate bond Comprising 4 carbon atoms to 70 carbon atoms excluding the carbon atoms of the linker, the monofunctional hydrophobic end-capped structure comprises 8 carbon atoms to 30 carbon atoms excluding the carbon atoms of the linker. The present invention introduces a hydrophobic structure of functional groups that can react with isocyanate bonds on the main chain of the polyurethane polymer, and the hydrophobic structure can form a "cage-like" structure on the main chain of the polyurethane polymer, which can effectively interact with the solvent in the system. , reduce the influence of solvent on system thickening, especially in high solvent system, it has high thickening efficiency.

The invention discloses a thickening method and a thickening system of whole tailing material slurry paste, wherein the thickening method includes following steps: (1) feeding whole tailing material slurry into a cyclone machine to separate the whole tailing material slurry into crude granular mortar and fine granular mortar, wherein the crude granular mortar, at a bottom flow, is fed into a vibrating sieve while the fine granular mortar, at an over flow, is fed into a thickener; (2) in the vibrating sieve, vibrating the fine granular mortar to sieve the fine granular mortar and feeding the fine granular mortar into the thickener, wherein crude granules are discharged into a sand bin; (3) feeding an over flow in the cyclone machine into the thickener and feeding the bottom flow in the thickener into the sand bin; and (4) in the sand bin, mixing the crude granular mortar and the fine granular mortar to obtain the paste. The thickening system is composed of the cyclone machine, the vibrating sieve, the sand bin and the thickener, wherein a material slurry pipe is connected to input of the cyclone machine. Outputs of the cyclone machine include two groups, one is connected to the vibrating sieve and the other is connected to the thickener. The outputs of the vibrating sieve include two groups, one is connected to the thickener, and the other is connected to the tail sand bin. The output of the thickener is connected to the sand bin. In the invention, the tailing material slurry is separated into crude granular mortar and fine granular mortar and then is thickened, so that thickening concentration can reach 70-82%, which is higher than that of a deep-cone thickener and a sand bin by 2-5%. The tailing utilization rate is higher than 95%.