53results about How to "Reduce application viscosity" patented technology

Plasticizer blends comprise a triblend of diethylene glycol dibenzoate, dipropylene glycol dibenzoate, and 1,2-propylene glycol dibenzoate, in specified ratios, useful in combination with a multitude of thermoplastic polymers, thermosetting polymers, and elastomeric polymers and numerous applications, including but not limited to plastisols, adhesives, sealants, caulks, architectural coatings, industrial coatings, OEM coatings, inks, overprint varnishes, polishes, and the like. The advantages rendered by the use of the triblend depend on the type of polymer and application in which it is utilized and include among other advantages higher solvating power and lower processing time, low VOC's, reduced plasticizer freeze point, improved gelation and fusion characteristics, higher tensile strength, superior stain and extraction resistance, and improved rheology over traditional diblends of diethylene glycol dibenzoate and dipropylene glycol dibenzoate.

The invention discloses a mono-component varnish composition, which comprises at least a polymer having a hyper branched or dendritical structure; at least one type of hydroxyl acrylic resin or hydroxyl methacrylate resin; at least one type of organosilicon-modified acrylic resins; at least a crosslinking curing agent; at least an acid catalyst; at least a rheological control agent; at least an auxiliary agent and at least a solvent; and the mono-component varnish composition has the advantages of high scratch resistance and high weather resistance. The provided mono-component varnish composition can effectively increase the smoothness of the surface of a varnish composition film, and increases the rub resistance of the film; in addition, the introduction of the organosilicon-modified acrylic resin can further increase the weatherability of the varnish composition film.

The invention discloses an organic silicon modified epoxy acrylate aqueous dispersion and a preparation method thereof. The method comprises the following steps of: mixing a polyether epoxy diluent and epoxy resin, and reacting the mixture with a crylic acid monomer to obtain low-viscosity epoxy acrylate prepolymer; performing grafting modification on the low-viscosity epoxy acrylate prepolymer by using maleic anhydride and introducing a hydrophilic group on a molecular chain; mixing micro-molecular amino silicone oil and organic alkali to obtain a neutralizer; and neutralizing the system, adding water for dilution and dispersion, and regulating solid content and viscosity to obtain the UV-curable organic silicon modified epoxy acrylate aqueous dispersion. The organic silicon modified epoxy acrylate aqueous dispersion has high solid content of over 60 percent and low viscosity of between 1,500 and 5,500 mPa.s. A UV cured film has high hardness of between 4H and 6H, high flexibility and water resistance and low water absorption of below 5.0 percent, and can be applied to the fields of furniture, buildings, household appliances, papermaking and printing, and the like.

The invention discloses a polyurethane associated thickener, and a preparation method and application thereof. The preparation method comprises the following steps: adding polyether polyol and methylbenzene to a reaction container under protection of nitrogen, heating up to 110-130 DEG C, and drying and dewatering in vacuum for 2-4 hours; adding a catalyst and diisocyanate after cooling to 30-50 DEG C, heating up to 50-80 DEG C and reacting for 2-6 hours, so as to obtain a methylbenzene solution of a polyurethane prepolymer; adding a chain extender to expand the chain, reacting for 2-6 hours, and then adding a hydroxyl-containing dendric molecule capping agent; heating up to 60-100 DEG C and reacting for 2-8 hours, and then adding a precipitator petroleum ether or normal hexane; drying the sediment in vacuum to finally obtain white solid powder, namely the polyurethane associated thickener. By adopting the polyurethane associated thickener, the viscosity of an emulsion paint can be effectively improved at low dosage, so that the emulsion paint has high viscosity in a low shear state, and also has the characteristic of low construction viscosity in a high shear state; the polyurethane associated thickener has a better application prospect.

The invention relates to a photocuring double-component polyurea waterproof coating and a preparation method thereof. The photocuring double-component polyurea waterproof coating is composed of a component A and a component B. The raw material formula of the component A comprises a polyurea prepolymer and an acrylic acid modified polyurea prepolymer, and the polyurea prepolymer is prepared through a reaction of isocyanate and steric hindrance secondary amine. The raw material formula of the component B comprises amino-terminated polyether, an amine chain extender, a photoinitiator, a defoaming agent, an antioxidant and a plasticizer. The steric hindrance secondary amine and the amine chain extender are respectively selected from asparaginic acid ester steric hindrance type secondary amine. An asparaginic acid ester compound is introduced into the component A and the component B at the same time, the photoinitiator is used in cooperation, the coating can be rapidly and deeply dried and cured to form a film after being irradiated by ultraviolet rays, and the weather resistance is good. Acrylic acid is introduced for modification, so that the coating has the flexibility of polyurethane and the hardness of acrylic acid at the same time, and the coating also has excellent cohesiveness, excellent self-repairing and self-healing performance and long opening time.

The invention discloses composite modified desulfurized rubber asphalt and a preparation method thereof. After desulfurized rubber powder is added into matrix asphalt, the desulfurized rubber powder is evenly dispersed in the matrix asphalt, then the evenly-dispersed mixture is subjected to shearing, and the desulfurized rubber powder is finer through shearing under high-speed rotation, so that more reaction opportunities of the desulfurized rubber powder and the light component are created, then through a development technology, the desulfurized rubber powder swells in the matrix asphalt to form desulfurized rubber asphalt with good performance, after the desulfurized rubber asphalt is prepared, a composite modifying agent is added, a shearing technology is conducted, polyphosphoric aciddisperses more evenly in the desulfurized rubber asphalt, the reaction depth is improved, and through development, the polyphosphoric acid better swells in the desulfurized rubber asphalt to form thecomposite modified desulfurized rubber asphalt with good performance. The obtained composite modified desulfurized rubber asphalt is good in environment-friendly performance and high-and-low temperature performance, low in applicable viscosity and good in storage stability.

The embodiment of the invention discloses a modifier as well as a preparation method and application thereof. The modifier is prepared from the following raw materials in parts by weight: 40-80 partsof thermoplastic elastomer polymer, 10-30 parts of modified petroleum resin, 5-20 parts of thermally sensitive resin, 1-5 parts of a stabilizer, 5-20 parts of a plasticizer and 1-3 parts of an antioxidant. The thermoplastic elastomer polymer in the embodiment of the invention has an effect of enhancing and toughening the modifier, so that the high/low-temperature service performance of the modifier can be ensured; the modified petroleum resin has strongly polar groups and is matched with the thermoplastic elastomer polymer, so that the viscosity of asphalt at a service temperature can be obviously improved, and the pavement performance of the mixture is ensured; the thermally sensitive resin has the characteristic of excellent temperature sensitivity and is matched with the plasticizer andthe stabilizer, so that the applicable viscosity of the asphalt at a high temperature can be effectively reduced, and the construction workability of the mixture is improved; and moreover, since thehigh temperature viscosity is reduced, the melting dispersion characteristic of the modifier can be improved.

The invention discloses a high-solid and low-viscosity organosilicone-modified acrylate resin, the structure of which is shown as the general formula I, wherein the definitions of substituted groups in the formula are shown in a specification. The high-solid and low-viscosity organosilicone-modified acrylate resin can endow a varnish film with high rubbing resistance and smooth performances.

The invention relates to the technical field of heavy corrosion prevention in petrochemicals, and in particular relates to a water-based solvent-free epoxy corrosion prevention coating used in the environment of heavy corrosion of the inner walls of crude oil and chemical storage tanks and a preparation method thereof. The water-based solvent-free epoxy corrosion prevention coating comprises the following components in percentage by weight: 30 to 50 percent of solvent-free aqueous epoxy resin, 1 to 10 percent of a reactive diluent, 40 to 55 percent of a pigment and 1 to 5 percent of an auxiliary agent, wherein the sum of the percentages of the components is 100 percent. In the invention, the solvent-free aqueous epoxy resin and a solvent-free aqueous epoxy curing agent are innovatively used as main film-forming substances, a small amount of hydrophilic groups are introduced into the molecular structure of the resin and the curing agent, and the hydrophilic reactive diluent is added inthe design of the coating to reduce the viscosity of the product. The product itself has the characteristics of low viscosity, no solvent and excellent corrosion resistance. At the same time, due to the introduction of hydrophilic groups into the molecular structure, the product can be dissolved in water.

The invention discloses a grafting modification method of waste rubber powder used for asphalt modification. The grafting modification method of waste rubber powder used for asphalt modification comprises following steps: ultrasonic dispersion is adopted to prepare a waste rubber powder suspension liquid, hydrogen peroxide is added into the waste rubber powder suspension liquid dropwise, reactionis carried out so as to obtain hydrogen peroxide modified waste rubber powder; a monohydric alcohol and an isocyanate are added into an obtained prepolymer to prepare modified waste rubber powder, wherein the surface of the modified waste rubber powder is grafted with oxygen-containing groups and alkyl long chains. The rubber modified asphalt material prepared through adding of the grafted modified waste rubber powder into asphalt is friendly to the environment, is high in stability, and is excellent in performance.

The invention discloses novel composite rubber modified asphalt and a preparation method thereof, relating to the field of road paving materials. The problems that the conventional waste tire rubber powder has low utilization rate, the conventional rubber asphalt is poor in high temperature resistance and the applicable viscosity is high due to increase of the doping amount are solved. The novel composite rubber modified asphalt disclosed by the invention comprises the following components in parts by weight: 65-75 parts of petroleum asphalt, 4-6 parts of waste recycled plastic particles, 1-3 parts of SBS (Styrene Butadiene Styrene), 60-75 parts of tire crown rubber powder, 15-30 parts of tire side wall rubber powder, 10-15 parts of tire bead rubber powder, 1.5 parts of white oil, 0.5 part of a TMTD accelerant, 1 part of an activator, 0.2-0.4 part of a stabilizer and 0.1-0.2 part of an anti-aging agent, wherein the granularity of the tire crown rubber powder is 25-40 meshes, the granularity of the tire side wall rubber powder is 30-40 meshes, and the granularity of the tire bead rubber powder is 40-60 meshes. The composite rubber modified asphalt disclosed by the invention is excellent in high temperature resistance, low in applicable viscosity and long in service life, and the utilization rate of waste tire rubber powder is increased.

The invention discloses a solvent-free two-component reactive type polyurethane adhesive applied to a woodworking industry. The polyurethane adhesive disclosed by the invention is a two-component reactive type polyurethane adhesive, and through self-researched formulas and production processes of a component A and a component B, the two-component reactive type polyurethane adhesive is prepared; and the adhesive has low viscosity, is a liquid at normal temperature, has low construction viscosity in the early stage, and is more easily penetrated into wood textures to improve adhesion; and the adhesive is quickly cured in the later stage to generate adhesion, and the adhesive can be used for continuous production and improve production efficiency.

The invention provides sprayable solvent-free two-component polyurethane putty which comprises low-viscosity solvent-free bio-based resin and a low-viscosity polyisocyanate curing agent so that the viscosity of a whole coating mixing system is relatively low; in addition, hydroxyl-terminated polybutadiene-acrylonitrile resin is introduced into a formula system so that the wet adhesion and the flexibility of the system to a metal substrate are improved, and the corrosion resistance of the system is greatly improved. Resin used in the invention is solvent-free soybean oil-based and castor oil-based resin, no volatile component exists, other components are inorganic powder, and no low-boiling-point organic volatile matter exists in the whole formula system so that the product is more environment-friendly, and no flammable and combustible hidden danger exists; compared with an existing solution, three effects of priming paint, putty and floating coat are integrated, the construction linksare greatly reduced, the construction efficiency is improved, and the unit labor cost is reduced; the polyurethane material has better cold temperature performance, and the repair quality is greatly improved.

The invention relates to a texture coating. The texture coating comprises the following raw materials in percentage by weight: 11 to 25% of an acrylic emulsion, 0.08 to 0.14% of polyacrylamide, 0.09 to 0.28% of cellulose, 0.3 to 0.5% of propylene glycol, 0.3 to 0.6% of an associative thickening agent, 52-70% of a filler, 2.6-8% of other processing aids and 9-20% of water, wherein the polyacrylamide is non-ionic polyacrylamide, and has a molecular weight of no greater than 3 million; and the solid content of the acrylic emulsion is 45%-60%. The texture coating is good in moisture retention, convenient to construct, energy-saving and environment-friendly.

The invention discloses a mortar additive for buildings. The mortar additive comprises the following components in parts by weight: 20-40 parts of methyl cellulose, 5-10 parts of modified polyacrylamide, 5-10 parts of polyvinyl alcohol, 20-30 parts of vegetable gum, 3-5 parts of an air entraining agent, 5-10 parts of a moisture absorbent, 5-10 parts of magnesium aluminum silicate, 5-10 parts of awater reducing agent, 5-10 parts of starch ether and 5-10 parts of a dispersing agent. The formula of the building mortar additive provided by the invention does not contain toxic and harmful substances, so the environmental protection property of building materials can be ensured. In addition, production is easy and convenient, a reaction kettle and heating treatment are not needed, only stirringequipment needs to be used for evenly mixing the components, and therefore other toxic and harmful substances are prevented from being generated.