42results about How to "Less prone to phase separation" patented technology

The invention provides a silicon hybrid composite coating electronic adhesive and a preparation method thereof. The preparation method comprises the following steps: under the action of acid catalysts which are respectively added in multiple steps, performing catalytic reaction on ethyl orthosilicate, PDMS (polydimethylsiloxane) and methyltriethoxysilane to form sol A; and compounding the sol A and chitosan to form the novel silicon hybrid composite coating electronic adhesive. The prepared coating electronic adhesive has favorable comprehensive properties; a coated film formed by the coating electronic adhesive has excellent hydrophobicity, favorable stain resistance and corrosion resistance, high adhesive force onto a coated substrate, high refracting index, fine mechanical property and good oxygen barrier property; and the preparation method is simple in preparation technique, easy to control in technical process and low in cost.

The invention discloses an emulsified high-alcohol degasifying agent for papermaking. Based on the totally 100-percent weight of the components, the agent comprises the following components in percentage by weight: (1) 30 to 59 percent of degasifying active substance, (2) 0.01 to 5 percent of non-cationic surfactant and (3) 40 to 69 percent of water, wherein the degasifying active substance comprises the following components in percentage by weight: (A) 20 to 40 percent of high alcohols, (B) 40 to 20 percent of fatty acid ester, (C) 40 to 20 percent of low melting grease, (D) 0.05 to 0.25 percent of polysaccharide compound and (E) 0.01 to 0.1 percent of water-soluble styrene-maleamic acid copolymer which are added into 100 percent in percentage by weight. The emulsified high-alcohol degasifying agent for the papermaking has the advantages of good storage stability, good high-temperature degasifying property, moderate preparation condition and the like, and can be widely applied to a papermaking process in the papermaking industry and other industries to achieve highly-efficient degasifying and deforming effect.

The invention provides a method for a layered silicate modified silica sol, wherein a dilute orthosilicic acid solution, an acidic activated orthosilicic acid solution, an alkaline orthosilicic acid solution, an active crystal seed sol, a first-stage growth silica sol and a first-stage growth silica sol / layered silicate suspension are prepared so as to finally obtain the layered silicate modified silica sol. According to the present invention, the cheap water glass is used as the raw material, and all the processes are carried out in the water phase without the organic solvents, such that the production cost is substantially reduced, the working environment is safe and health, and the method has advantages of simple process, low cost, and environment protection.