93results about How to "Improve wettability and dispersibility" patented technology

The invention belongs to the technical field of potato cultivation, and discloses an application of a biodegradable weeding mulching film in potato cultivation. The mulching film comprises the following components in percentage by mass: 70-97% of biodegradable resin A and 3-30% of biodegradable herbicide master batches, wherein the biodegradable herbicide master batches are prepared by a method comprising the following steps: mixing 10-60% of a herbicide with 0.5-7% of a surfactant A, and performing ultrasonic activation; and mixing 25-75% of biodegradable resin B and 1-10% of a surfactant B at a high speed, and performing extrusion and granulation, thereby obtaining the herbicide master batches, wherein the mass ratio of the surfactant A (the hydrophilic-lipophilic balance value is 7-10) to the surfactant B (the hydrophilic-lipophilic balance value is 3-6) is (1:1)-(1:2). As the biodegradable weeding mulching film is used in potato cultivation, the problems that weeds can grow out from furrow surfaces and environment pollution can be caused by common plastics can be effectively prevented, and the labor cost can be lowered.

The invention discloses a water-based flexographic printing ink for cigarette tipping paper printing and a preparation method thereof. The water-based flexographic printing ink is composed of a modified acrylic emulsion, pigment and filler, a wetting dispersant, a transfer printing agent, a defoaming agent, deionized water, and a cosolvent. The modified acrylic emulsion is a novel acrylic emulsion formed by copolymerization of an imported high quality emulsifier, acrylate and special functional monomers, and has the advantages of fantastic calcium ion stability, dilution stability, mechanical stability and freeze-thaw stability, and small pollution to the environment. The water-based flexographic printing ink for tipping paper printing provided by the invention is non-toxic and tasteless, has quick drying speed and good dispersion stability, the printing product is free of deformation and edge curling, and has bright color and excellent antibacterial properties. The printing product has few residual monomer and low odor, is green and environment-friendly, the printing ink can be used cooperatively with a flexographic press, the printing speed can reach 250-300m/min, and the machine speed is doubled than the traditional intagliotipping paper printing press, thus greatly improving the production efficiency, and saving the production cost.

The invention provides boron silane modified silicon resin and addition type resin composition containing the resin. The resin has the general structural formula shown in the specification, wherein R is an alkyl group, R1 is an epoxy group or an acrylate group or a methacrylate group, and R3 is a silicon vinyl group. A B-O bond is introduced into the molecular structure, and the heat stability of the resin is improved; at least one phenyl group is contained in the resin structure, and the resin is good in compatibility when compounded with other resin for use and can keep the transparency of final cured products; at least one silicon vinyl group is contained in the resin structure, and the resin can participate in final hydrosilylation curing and cannot affect the performance of the final cured products; active functional groups such as the alkoxy group, the epoxy group, acrylate and the like are introduced into the resin structure, during preparation of the composition, the polarity of the system can be improved greatly, and the dispersion performance of the resin to filler is improved greatly.

The present invention relates to comb (block) copolymers obtainable by reacting

• I at least one (block) copolymer comprising polymerized, optionally substituted styrene and maleic anhydride units, which copolymer has been obtained by living, free-radical polymerization, with
• II at least one polyalkylene oxide monoamine comprising a primary amino end group at a reaction temperature of ≧150° C.

and by subsequent salification of at least 25 mol % of the free carboxyl groups of the reaction product at a reaction temperature of <100° C. and optionally after addition of H₂O and to the use of these comb copolymers as wetting agents and dispersants.

The invention relates to electrophoretic paint with high weather resistance and better spring coverage and a preparation method thereof. The electrophoretic paint is prepared by high weather resistance acrylic acid modified emulsion and weather-resistant color paste according to the ratio of 8:1, the high weather resistance acrylic acid modified emulsion is obtained by reacting 33-39 parts of epoxy grafted fluoride cation acrylic modified resin, 2-3 parts of microgel, 14-16 parts of sealing, 0.8-1 part of neutralizer and 44-52.2 parts of deionized water; the weather-resistant color paste is prepared by mixing and grinding 15-18 parts of acrylic acid grinding resin, 1-2 parts of surfactant, 42-50 parts of deionized water and 34-38 parts of pigment filler. According to the painting, the coating appearance is flat and bright, the yellowing resistance is good, and the coating has excellent mechanical property, bath stability, weather resistance, corrosion resistance and spring coverage.

The invention relates to a multipurpose high weather resistant acrylic acid electrophoretic paint and a preparation method thereof. The paint comprises two components, and is produced from high weather resistant acrylic acid modified emulsion and weather resistant color paste at a ratio of 8:1. The high weather resistant acrylic acid modified emulsion comprises following ingredients, by weight: 33 to 39 portions of fluorine-containing cationic acrylic acid modified resin, 14 to 16 portions of blocked aliphatic isocyanate curing agent, 0.8 to 1 portion of a neutralizer and 44 to 52.2 portions of deionized water. The weather resistant color paste comprises following ingredients, by weight: 15 to 18 portions of acrylic acid grinding resin, 1 to 2 portions of a surfactant, 42 to 50 portions of deionized water and 34 to 38 portions of a pigment filler. Fineness of the weather resistant color paste is 15um or less. The paint of the invention is suitable for colorized, white and grey systems. Appearance of coatings is flat, smooth and bright after one time of electrophoretic painting. Yellowing resistance, mechanical properties, coating liquid stability, acid resistance, alkali resistance and weather resistance of the coatings are excellent.

The present invention provides a delivery system for active and functional ingredients. In particular, the delivery systems of the present invention find particular application in the delivery of active and functional ingredients, such as medicaments, pharmaceuticals, nutritional supplements, botanicals, cosmeceuticals etc. Further, the invention relates to a delivery system for oral or topical administration of such active and functional ingredients. The invention is a delivery system based on a particulate gel precursor that acts both as the bodying agent,as well as the dispersing and suspending agent in the formulation. By modifying the level of precursor and process conditions, a broad range of product consistencies can be achieved ranging from thin liquid suspension to firm or semi solid gel. The precursor gel is a particulate linear chain fuctan gel. Inulin is a preferred fructan.

The invention discloses a polymer cement waterproof coating and a preparation method thereof. The polymer cement waterproof coating comprises liquid materials and powder materials, wherein the liquidmaterials comprise the following components in parts by weight: 10-15 parts of EVA emulsion, 10-15 parts of acrylate polymer emulsion, 0.05-0.1 part of a dispersant 5040, 0.8-1 part of ethylene glycolmonobutyl ether and 0.1-0.3 part of polymethyl silicone resin, 0.06-0.12 part of polyoxypropylene oxyethylene glyceryl ether, 0.2-0.4 part of an anti-aging agent, 0.2-0.4 part of a cross-linking agent, 0.1-0.2 part of a bactericide and 0.1-0.2 part of a dry film mildew inhibitor; the powder comprises the following components in parts by weight: 8-10 parts of Portland cement, 4-6 parts of heavy calcium carbonate, 4-6 parts of quartz powder, 0.5-1.5 parts of wollastonite, 0.5-0.8 part of montmorillonite, 0.1-0.2 part of nano titanium dioxide, 0.04-0.08 part of sodium hexametaphosphate and 0.4-0.6 part of chlorinated paraffin. The polymer cement-based waterproof coating has the advantages that the polymer cement-based waterproof coating has good durability.

The invention discloses water-based paint for multifunctional fiber textile. The water-based paint is prepared from the following raw material components in parts by mass: 10 to 25 parts of water-based organic silicon resin, 1 to 30 parts of a polytetrafluoroethylene solution, 1 to 5 parts of organic silicone powder, 1 to 15 parts of a pigment, 1 to 5 parts of nano barium sulfate, 0.05 to 0.5 partof nano zinc oxide, 0.1 to 1 part of silica sol, 5 to 10 parts of a flame retardant, 2 to 15 parts of fluorescent powder and the like. Furthermore, the invention further provides a simple and feasible preparation method of the water-based paint for the multifunctional fiber textile. By adopting the formula and the method, disclosed by the invention, the prepared paint has adhesive force, flexibility, weather resistance and flame-retarding performance and has a suitable paint film thickness; meanwhile, the water-based paint also has the characteristics of no fluffiness, no fading and smooth hand feeling, and a plurality of effects of heat prevention, flame retarding, corrosion resistance, fluorescence warning, easiness for cleaning, bacterium inhibition and sterilization, environment protection and the like, so that the water-based paint has very strong market competitiveness.

The invention discloses a liquid crystal epoxy modified water-based alkyd resin and a preparation method thereof and belongs to the field of macromolecule synthetic water-based alkyd resin. The invention overcomes the defects of environment pollution, damage to the human body health, resource waste, inflammability, explosion and the like of the conventional solvent borne paint. A method for preparing water-based alkyd resin by the combination of a salifying method and a hydrophilic group introducing method is adopted. Linolenic acid is firstly maleated, then liquid crystal epoxy and organic sulfonate oligomer are introduced, trimethylolpropane and neopentyl glycol are optimally combined, the salifying method and the hydrophilic group introducing method are combined, an esterification catalyst is added, and the production process is safe and simple. The resin is dispersed in water after being neutralized by amine, and the water dispersibility and pigment wetting dispersibility of the resin are improved. The liquid crystal epoxy modified water-based alkyd resin is brown transparent liquid with the viscosity higher than or equal to 25 seconds, non-volatile matter accounts for 68 +/- 2%, and the acid value is 22-32mgKOH/g.

The invention relates to a high-dispersion nano organic clay composition and a preparation method thereof and belongs to the field of the chemical industry. A main surfactant, an auxiliary surfactantand a surface modifier which are different in type are adopted for conducting layer insertion on the surface, modification and decoration on clay, the wetting dispersion performance of the organic clay is improved, and the quick dispersion requirement is met. The high-dispersion nano organic clay product is mainly applied to the fields of paint, ink systems and nano composite materials, and the thixotropic performance mechanical performance, blocking performance and flame retardant performance of the system are improved.

The invention discloses a pesticide adjuvant composition and a preparation method thereof, and belongs to the technical field of pesticide preparations. The pesticide adjuvant composition comprises the following components in percentage by weight: 30 to 50 percent of dispersing agent, 5 to 8 percent of acidity regulator, 10 to 25 percent of antifreezing agent, 10 to 20 percent of emulsifying agent, 10 to 20 percent of wetting agent and the balance of water. The pesticide adjuvant composition has the advantages of simplified formula technology, flexibility in use, time conservation, high generality, high wetting dispersity, high low-temperature resistance, good compatibility with the pesticide preparation and the like.

The invention discloses photoresist pigment paste and a preparation method thereof, and relates to the technical field of liquid crystal display materials. The preparation method comprises the following steps: mixing a graphene oxide aqueous solution with N, N-dimethylformamide, carrying out spray drying on the obtained mixture and hot inert gas, carrying out thermal reduction to obtain modified graphene, mixing molten paraffin with an initiator, adding styrene, carrying out a reaction to obtain pretreated paraffin, mixing the pretreated paraffin and a toluene solution containing maleic anhydride, vinyl benzyl mercaptan and an initiator for a reaction, preparing modified paraffin, stirring and mixing the modified paraffin, modified graphene and pigment under the low-temperature condition, and performing stirring and mixing under the high-temperature condition to obtain pretreated pigment; finally, mixing propylene glycol methyl ether acetate with n-butyl acetate, adding acrylic resin, the pretreated pigment and a wetting dispersant, and performing stirring and mixing to obtain the photoresist pigment paste. The photoresist pigment color paste prepared by the invention has excellent stability and good pigment dispersity.