55results about How to "Low dynamic surface tension" patented technology

The invention provides a multifunctional surfactant composition for a water-based system and a preparation method thereof. The surfactant composition used in formulas of a water-based coating, ink, adhesive and a digital material has low foaming effect and has the effect of effectively reducing the dynamic surface tension of the water-based system. The composition is formed by compounding and modifying based on alkynyl diol or alkynyl diol ethoxylate. The key component structure of the composition is an alkane structure in which R, R1 and R2 are straight-chained or branch-chained, and the number of carbons is 1 to 15; R, R1 and R2 can be the same or different groups; the carbon number of the alkane structure in which R, R1 and R2 are straight-chained or branch-chained is 1 to 15; R, R1 and R2 can be the same or different groups; and the sum of m and n is 1 to 30. The invention simultaneously provides the preparation method for the composition.

A glass fiber-treating agent comprising (A) 5-95% by weight of an acetylene glycol or an ethylene oxide and/or propylene oxide adduct of acetylene glycol and (B) 5-95% by weight of a silicone surfactant. The agent functions to reduce dynamic and static surface tension and contact angle and offers excellent wetting, penetrating and antifoaming properties when glass fibers are treated therewith.

The present invention relates to a composition for preventing water-drops from bouncing and sputtering on a super-hydrophobic surface. The composition comprises two or three of the following substances: 1) a surfactant capable of reducing dynamic surface tension and equilibrium surface tension; 2) a synthesized or natural polymer; and 3) nanoparticles. The composition can be a combination of 1) and 2), and also can be a combination of 1), 2) and 3). Content of the composition is in an aqueous solution or a pesticide diluent and a paint diluent is that in the aqueous solution, the surfactant accounts for 0.1%-1%, the polymer accounts for 0.005%-1%, and the nano particles account for 1%-20%. The composition for preventing water-drops from bouncing and sputtering on the super-hydrophobic surface disclosed by the invention has the advantages of integrating low dynamic surface tension, low equilibrium surface tension, viscosity of the polymer and a thixotropic material, thereby jointly solving problems of the aqueous solution bouncing and sputtering on the super-hydrophobic surface.

The invention relates to a high-viscosity water-based asphalt waterproof coating and a preparation method thereof. The high-viscosity water-based asphalt waterproof coating comprises the following raw materials in parts by weight: 50-70 parts of anionic emulsified asphalt, 10-30 parts of an acrylic emulsion, 5-25 parts of neoprene latex, 1-2 parts of a defoaming agent, 1-3 parts of a thickening agent, 0.5-1 part of a sterilizing agent, 3-5 parts of a wetting agent, 1-3 parts of a dispersing agent, 10-30 parts of filler, 1-2 parts of a cosolvent and 5-15 parts of water. The thickening agent is prepared from water-based associated polyurethane, silica gel and polyhydroxy polyacrylamide according to a mass ratio of 1:(0.45-0.68):(0.6-0.9). The coating has high bonding strength, high tensile strength, high elongation rate and excellent low-temperature flexibility, and solves the problem of blistering during construction.

The invention discloses an alkynolalkoxy compound modified siloxanesurfactant, a main chain of a molecular structure is a hydrogen-containing siloxane group losing a hydrogen atom, a side chain is analkynolalkoxy compound group through addition of alkynyl and one hydrogen, and the main chain and the side chain are connected through a Si-C chemical bond; a synthesis method comprises the followingsteps: an alkynolalkoxy compound and hydrogen-containing siloxane have a hydrosilylation reaction to obtain a product under a vacuum, solvent-free and catalyst conditions; and the molar ratio of the alkynolalkoxy compound to the hydrogen-containing siloxane is 1.15:1, the reaction temperature is 80 DEG C to 110 DEG C, the vacuum degree of the reaction is 200-750 mmHg, the reaction time is 3.5 h,and proper amount of reaction inhibitor is used. The surfactant has the advantages of low static and dynamic surface tension, low foam, high stability and the like; the preparation method is differentfrom the traditional preparation process, the use of a carboxylic acid or a salt of the carboxylic acid prevents the condition that the acetylene alcohol ether and/or hydroxyl of a copolymer form/forms acetal, the steps of processing the acetal and a solvent and dissolving out the solvent in the traditional process are omitted, the process is simplified, and the cost is lowered.

The invention discloses a waterproof carbon paper chromogenic layer coating. The coating comprises, by weight, 3-5 parts of light calcium carbonate, 2-4 parts of calcined kaolin, 1.5-1.8 parts of activated clay, 2-4 parts of corn modified starch, 0.6-0.8 parts of carboxymethylcellulose sodium, 3-5 parts of paraffin, 0.5-0.7 parts of an emulsifier, 5-8 parts of styrene-butadiene latex, 3-5 parts of polyamine polyepoxy resin, 0.5-0.8 parts of a composite dispersant, 1-2 parts of dimethicone, 3-5 parts of carboxylic styrene butadiene latex and 1.2-1.5 parts of titanium dioxide. Light calcium carbonate with fine and uniform particle size is easy to obtain, is safe and environmentally friendly, and has no pollution to human bodies or environment; the composite dispersant allows the prepared coating to have low viscosity, few bubbles and low dynamic surface tension and to reach below 40dyne; and activated clay is applied to make the coating have the advantages of fast chromogenic speed, high whiteness and uniform hue and to make a coat obtained through using the coating have smooth and flattened surface, high glossiness, and good and lasting waterproof effect.

The invention relates to the technical field of coatings, in particular to an organic-inorganic antibacterial antifouling interior wall coating and a preparation method thereof. The coating is prepared from an inorganic hybrid perfluorocarbon modified acrylate self-emulsifying emulsion, zeolite-loaded silver, silica gel-loaded silver, a functional filler, calcined kaolin, wollastonite powder, ash calcium powder, a Taieasy HD-20 dispersing agent, a Taieasy inorganic powder DS-195 dispersing agent, 2, 4, 7, 9-tetramethyl-5-decyne-4, 7-diol and deionized water. The inorganic hybrid perfluorocarbon modified acrylate self-emulsifying emulsion is used as a base material, and zeolite-loaded silver and silica gel-loaded silver are used as a composite inorganic mildew preventive, so that the coating has the characteristics of chemical corrosion resistance, flame retardance, fire prevention and environmental protection of an inorganic coating and the advantages of strong adhesive force and good scrubbing resistance of an organic coating; the coating is safe and non-toxic, excellent in mildew-proof performance and long in mildew-proof validity period.

The present invention pertains to a method for controlling the foaming of a waterborne composition or an industrial process by the incorporation of a foam controlling agent. The method comprises utilizing as the foam controlling agent a compound of the formula: HOR1R3C-CH2n-CR2R4OH. R1 and R2 are independently selected from the group of alkyl radicals having from 3 to 6 carbon atoms. R3 and R4 are independently alkyl radicals having from 1 to 2 carbon atoms. n is an integer from 1 to 6. The compound generates an initial (t=0 min.) or a final (t=10 min.) foamed density at least 30% greater than that of a 0.5 wt % aqueous solution of a 12 mole ethoxylate of a C12-C15 primary alcohol (C12-C15E12) when added at 0.2 wt % to the C12-C15E12 solution. The present invention also pertains to an aqueous composition comprising the foam controlling agent.

The invention belongs to the technical field of wetting agents and in particular relates to a method for producing a wetting agent. The method comprises the following steps: reacting methyl isobutyl ketone to obtain 2,6,8-trimethyl-6-hydroxy-4 nonanone, reacting the 2,6,8-trimethyl-6-hydroxy-4 nonanone to obtain 2,4,8-trimethyl-4-nonyl alcohol, and reacting the 2,4,8-trimethyl-4-nonyl alcohol to obtain a highly branched-chain nonyl alcohol derivative. The method has the beneficial effects that the wetting agent has extremely low static and dynamic surface tension, and fluidity and leveling property are promoted; the product is low-foaming and can be applied to a foam inhibition wetting agent in a waterborne system; the wetting agent is silicon-free, oil-free and non-toxic; the conversion rate of the process is high.

The invention relates to diamond wire cooling liquid as well as a preparation method and application thereof. The diamond wire cooling liquid is prepared from the following raw materials: water, macromolecular polyether, fatty alcohol-polyoxyethylene ether, alkynediol polyoxyethylene ether, organic acid, organic amine and a defoaming agent, and the diamond wire cooling liquid is micro-emulsified diamond wire cooling liquid. According to the invention, water and polyether are taken as main raw materials, the ratio of polyether to water is controlled and the surfactant is added cooperatively, so that in the using stage of the cooling liquid, the micro-emulsifier form enables an emulsion to have good lubricating and cooling effects, and in the recycling stage, the ratio of water to ether in the cooling liquid is changed, the high-molecular polyether is gradually gathered into a macromolecular state from an original micron-sized state, so that filtering removal is facilitated in a filter pressing stage, and the technical purpose of convenience in recycling is achieved on the premise of ensuring the cooling and lubricating effects.