822 results about "Acrylic polymer" patented technology

The invention relates to the technical field of chlorinated polyvinyl chloride plastics, in particular to a PVC corrosion-resistant cable protection pipe and a preparation process thereof. The invention aims to solve the problem that the mechanical property and the corrosion resistance of the existing PVC cable protection pipe cannot be considered at the same time. Chlorinated polyvinyl chloride and polyvinyl chloride are subjected to hot mixing to obtain matrix resin, and the corrosion-resistant additive, the composite flame retardant, the flexibilizer and other additives are added to obtain the cable protection tube. The corrosion-resistant additive is obtained by grafting and modifying nano silicon dioxide with epoxy resin and premixing with an ethylene-vinyl alcohol copolymer; the composite flame retardant comprises core layers of nitrogen series, phosphorus series and inorganic hydroxides and a shell layer of an acrylate polymer, and is obtained through a core-shell reaction; the cable protection pipe is prepared through a multi-step mixing process; by introducing the core-shell structure and the corrosion-resistant auxiliary agent, efficient flame retardance and corrosion resistance are achieved, stress is buffered through the flexible shell layer, and the mechanical property of the material is maintained.

The invention discloses a lignin-monofluoroacrylic polymer high-voltage lithium ion binder as well as preparation and application thereof. The binder is prepared from lignin, polyfluoroacrylic acid and copolymer thereof through esterification reaction. The preparation method comprises the following steps: firstly, preparing a monofluoroacrylic polymer through free radical polymerization, and then grafting lignin into a side chain of the monofluoroacrylic polymer by utilizing esterification reaction to form a three-dimensional network structure; the binder has the free radical scavenging capacity of lignin, and the characteristics of chelating transition metal ions and stabilizing a CEI interface of polymonofluoroacrylic acid. Compared with a commercial PVDF (Polyvinylidene Fluoride) binder, the binder material disclosed by the invention has the advantages that the adhesive force is improved by 5.6 times, and the voltage resistance reaches 4.93 V which is obviously higher than that of PVDF (4.58 V). Therefore, the binder can be used for preparing the positive electrode of the high-voltage lithium ion battery, and has remarkable performance advantages.

To provide a coated fertilizer having a hydrophilic surface.SOLUTION: A coated fertilizer comprises: a granular fertilizer core; a first coated layer that is formed on a surface of the granular fertilizer core and is composed of a first coating composition including an acrylic polymer; and a second coated layer that is formed on the first coated layer and is composed of a second coating composition including an acrylic polymer, fine silicon powder, polymer sponge powder, and a hydrophilic substance. A silica particle layer is provided on a surface of the fine silicon powder.SELECTED DRAWING: Figure 1

The invention discloses a four-layer composite co-extrusion synthetic resin tile and a preparation method thereof, and relates to the field of resin tiles. A four-layer composite co-extrusion synthetic resin tile is characterized in that four material layers are co-extruded and thermally sealed into a whole, and the four material layers comprise a weather-proof surface layer, a first framework layer, a sound insulation and heat insulation layer and a second framework layer which are sequentially arranged from top to bottom; the sound insulation and heat insulation layer comprises the following raw materials in parts by weight: 90-100 parts of first PVC resin; 6-12 parts of a foaming agent; 1-2 parts of a lubricant; 1-3 parts of a heat stabilizer; 5-9 parts of a plasticizer; 10 to 20 parts of modified wood powder; the surface of the modified wood powder is coated with an acrylate polymer. The synthetic resin tile prepared by the invention has relatively strong sound insulation and heat insulation effects and cold shock resistance.

Embodiments of the disclosure include lubricious coatings. In an embodiment the disclosure includes a lubricious coating for a medical device including an acrylic acid polymer, an acrylamide copolymer comprising at least one photoreactive group, and a cross-linking agent comprising at least two photoreactive groups. The coating can be used on a catheter surface to facilitate its movement in the body.

The invention provides a high-temperature-resistant and high-humidity-resistant double-sided tape for bonding a PC (Polycarbonate) base material. The high-temperature-resistant and high-humidity-resistant double-sided tape has a four-layer structure, namely a first adhesive layer, a reinforced body layer, a second adhesive layer and a release protective layer in sequence. The two adhesive layers are acrylate pressure-sensitive adhesives and comprise an acrylate polymer solution, tackifying resin, a zeolite molecular sieve and a cross-linking agent. The key of the pressure-sensitive adhesive is an acrylate polymer solution formula, the rigidity of a molecular chain is enhanced by introducing methyl methacrylate and isobornyl methacrylate, and the high-temperature adhesive strength is ensured; meanwhile, the acid values of the hydroxyl / carboxyl-containing monomer and the tackifying resin are controlled to reduce hydrophilic groups and improve moisture resistance, and the zeolite molecular sieve is used for adsorbing gas released by the PC base material under high temperature and high humidity to prevent the gas from damaging a bonding interface. According to the scheme, the process is simple, the cost is controllable, and the problem that the bonding force of the PC base material is reduced due to gas release in a high-temperature and high-humidity environment is effectively solved.

The invention provides a fire-resistant low-voltage wire cable and a preparation method thereof, and belongs to the technical field of wire cables, the fire-resistant low-voltage wire cable comprises an internal cable core bundle and an outer sheath, the outer sheath is prepared from the following raw materials: a resin matrix, a composite flame retardant, a reinforcing filler and an anti-aging agent, the reinforcing filler is a glass fiber composite porous organic framework, the organic framework material is pretreated by an acrylic polymer, and the composite flame retardant is prepared by taking expanded graphite as a shell of a flame-retardant material and then performing hydroxylation modification by using a silicon source material. The preparation process is simple and suitable for industrial production, the prepared electric wire and cable outer sheath is good in environment friendliness, and through the combined action of the composite flame retardant and the reinforcing filler, the prepared outer sheath material has excellent fire resistance and flame retardance while keeping high mechanical strength.

The invention discloses an acrylic polymer grouting material and application of the acrylic polymer grouting material in prevention and treatment of surface layer pulverization of an earthen site in a humid environment, and belongs to the field of cultural relic restoration. Through the modification effect of a water-based polymer material with good diffusivity on the surfaces of ruins and the filling effect of pores, based on the shape of the excavated earthen ruins, the surface layer pulverization of the earthen ruins in the humid environment is prevented and controlled by adopting a stepped distribution micro drilling grouting technology and utilizing a polymer stepped grouting mode; the acrylic polymer liquid is diffused to a certain range of the surface layer of the earthen ruins to prevent internal water from seeping to the surface layer in summer and maintain certain humidity of the surface layer in other seasons, so that internal stress of the surface layer of the earthen ruins caused by water change is reduced, generation of surface layer cracks is reduced, and the pulverization resistance of the earthen ruins is enhanced; the purposes of reducing the permeability coefficient of the earthen ruins and improving the weather resistance of the surface layers of the earthen ruins are achieved.

The invention belongs to the technical field of polymer materials and binders, and discloses a polyurethane modified acrylic ceramic tile binder and a preparation method thereof. The polyurethane modified acrylic ceramic tile adhesive comprises a liquid material and a powder material, the liquid material comprises a silicone acrylic emulsion and an organic silicon modified polyurethane emulsion; the powder material comprises Portland cement, quartz sand and white carbon black. The organic silicon modified polyurethane emulsion is obtained by carrying out copolymerization reaction and emulsification on an alkoxy silane modified hydroxyl-terminated polybutadiene prepolymer, polyether glycol, micromolecular dihydric alcohol and diisocyanate in the presence of an organic tin catalyst. The organic silicon modified polyurethane emulsion contains an organic silane oxygen group capable of being hydrolyzed and cross-linked, and can be subjected to a hydrolysis cross-linking reaction with an organic silicon coupling monomer in a silicone acrylic emulsion, so that the compatibility of polyurethane and an acrylic polymer is improved, and the modification effect is improved.

The invention relates to the technical field of pellet adhesives, in particular to a mineral powder cold-pressed pellet adhesive and a preparation method thereof. The preparation raw materials comprise 8-16% of humic acid, 3-8% of an acrylic polymer, 10-25% of lignin, 2-6% of pentosan, 30-45% of kaolin, 2-6% of dispersible latex powder and 5-10% of aluminum oxide. The kaolin adopts high-molecular-weight kaolin as a filler, so that a stronger bonding network can be formed, and the bonding strength and durability of the adhesive are remarkably improved; and the dispersible latex powder is uniformly mixed with other materials due to the dispersity of the dispersible latex powder, so that the defect of agglomeration caused by poor dispersity due to the adoption of high-molecular kaolin is overcome. The proportion of humic acid and lignin is smaller than that of inorganic materials such as kaolin, so that the influence of carbonization of humic acid and lignin on the mechanical properties of pellets can be weakened. And the acrylic polymer and the latex powder in the ingredients cooperate with each other, so that the problem that the viscosity of the adhesive is reduced due to the reduction of the proportions of the humic acid and the lignin is well solved.

The preparation method comprises the following steps: uniformly mixing 21-30 parts by mass of a polyvinyl alcohol aqueous solution, 42-54 parts by mass of a silicone acrylic polymer emulsion and 10-18 parts by mass of calcium sulfate whiskers, and carrying out spray drying to obtain the rod-like hydrophobic material. When the rod-like hydrophobic material is applied to mortar, after the polyvinyl alcohol film is dissolved in water, the silicone-acrylic polymer particles gather along the surfaces of the calcium sulfate whiskers to form a hydrophobic film. The invention also discloses waterproof mortar and a preparation method thereof. The waterproof mortar is prepared from the following components in parts by mass: 32 to 45 parts of cement, 6 to 16 parts of rod-like hydrophobic substance, 40 to 50 parts of aggregate, 1.0 to 2.6 parts of rod-like early strength agent slow-release substance, 0.2 to 1.0 part of retarder and 0.1 to 0.2 part of cellulose ether. According to the invention, the rod-like hydrophobic substance and the rod-like early strength agent slow-release substance are introduced into a waterproof mortar system to achieve the purposes of water resistance, quick drying, improvement of flexural and compressive strength and improvement of construction efficiency.

The invention discloses an explosion-proof membrane capable of being quickly shaped and a preparation method of the explosion-proof membrane. The explosion-proof membrane comprises a base material layer, an energy dissipation layer, a self-healing layer and a self-adhesive layer which are sequentially compounded, the base material layer is a high-transmittance polyester base material with shape memory performance; the energy dissipation layer is located on the outer side of the base material layer and is of a gradient modulus structure. The self-healing layer is located on the outer side of the energy dissipation layer, and the self-healing layer is a low-modulus acrylate polymer matrix; the self-adhesive layer is located on the inner side of the base material layer. According to the method, the site construction period is shortened from the hour level to the minute level, the adaptability to the hyperboloid car window or dome daylighting roof complex special-shaped base is improved, and rapid shaping is achieved.

Disclosed in the present application are a separator and a preparation method therefor, a battery, and an electric device. The separator comprises a substrate and a coating, wherein the coating is formed on at least one side of the substrate, and comprises acrylic ester polymer particles, the acrylic polymer ester particles having an AFM adhesive force of 2-3 nN.

Provided are: a water-dispersed pressure-sensitive adhesive composition that has an excellent pressure-sensitive adhesive strength, and that can achieve both of adhesiveness to an adherend and peelability; and a pressure-sensitive adhesive sheet for re-peeling using the water-dispersed pressure-sensitive adhesive composition. The water-dispersed pressure-sensitive adhesive composition includes: a water-dispersed acrylic polymer; an active energy ray-curable resin; and a photopolymerization initiator, wherein the water-dispersed acrylic polymer is a polymer having two or more glass transition temperatures.

The present invention has an object of obtaining an electrically peelable adhesive product that is strong in adhesibility when used, is excellent in peelability even though a low voltage is applied, and does not leave much adhesive deposit after being peeled. The present invention achieves the above object by virtue of an electrically peelable adhesive composition contained in the adhesive product, the adhesive composition comprising an acrylic polymer, an ionic liquid having an ionic conductivity of 10−4 S / cm or more to 10−2 S / cm or less, and an alkyl ether of a polyethylene glycol, and containing 5 parts by weight or more to 30 parts by weight or less of the ionic liquid and of the alkyl ether of the polyethylene glycol with respect to 100 parts by weight of the acrylic polymer.

This invention provides a high-strength, impact-resistant acrylic adhesive. Using an independent synthesis method, an acrylate-modified rubber elastomer with carboxyl groups is prepared. This elastomer can be chemically bonded to an acrylic polymer. The resulting hydroxyl groups can further react with an isocyanate curing agent. Adhesion is enhanced by using an acrylic phosphate adhesion promoter and a multifunctional acrylate monomer to increase crosslinking density, enabling the foam tape prepared with this acrylic adhesive to maintain high bonding strength even at high temperatures. The foam tape prepared with this high-strength, impact-resistant acrylic adhesive exhibits a 180° peel strength of greater than 3200 gf / in at room temperature and greater than 800 gf / in at 85°C. It also exhibits a drop impact energy of greater than 0.65 J and a DuPont impact energy of greater than 0.90 J.

A polyurethane-acrylic composition, and particularly, a polyurethane-acrylic composition that is environment friendly and exhibits low heat shrinkage, which is suitable for use as a waterproof coating for a construction structure, especially for a roof. The polyurethane-acrylic composition includes:—at least one aqueous acrylic polymer dispersion, preferably in an amount of 17-56 wt %, preferably 20-45 wt %, based on the total weight of the composition; and—at least one aqueous polyurethane dispersion, preferably in an amount of 4-30 wt %, preferably 4-10 wt %, based on the total weight of the composition; wherein the composition is free of a coalescing agent.

The invention discloses an anticorrosive coating composition based on a nano hybrid and a preparation method of the anticorrosive coating composition, and relates to the technical field of powder coatings. Comprising the following components in parts by weight: 60-70 parts of fluorosilicone modified epoxy resin, 8-10 parts of an aminoethylated acrylic polymer, 4-8 parts of a functionalized nano hybrid, 4-6 parts of a curing agent, 0.3-1.2 parts of an accelerant, 1-2 parts of benzoin, 2-4 parts of a functional aid, 10-15 parts of a micron-sized filler and 1-2 parts of a coupling agent. The curing agent is prepared by compounding dicyandiamide, bicyclo [2.2. 1] heptane dimethylamine and 3, 5-diamino-1, 2, 4-triazole according to a mass ratio of (3 to 5): 1: (0.8 to 1.2). The coating composition is high in adhesive force and excellent in impact resistance and corrosion resistance.

The invention belongs to the technical field of novel environment-friendly printing and water-based packaging protection materials, and discloses high-wear-resistance degradable water-based plastic-replacing oil, a preparation method and application of the high-wear-resistance degradable water-based plastic-replacing oil. Water-based matte polyurethane, a water-based acrylic polymer and water-based bright polyurethane serve as core film-forming substances, and water-based matte polyurethane, water-based acrylic polymer and water-based bright polyurethane serve as core film-forming substances; degradable reinforcing agents such as nano-crystalline cellulose and functional auxiliaries are compounded, and a step-by-step dispersion technology is adopted for preparation. Through cooperation of the formula and the technology, the comprehensive performance that the A4 paper is resistant to abrasion for more than 3000 times, the natural biodegradation rate is more than 3000 times, the folding and explosion resistance is 30 times and the like can be achieved, complex chemical modification is not needed in the technology, the production period is remarkably shortened, a traditional BOPP film covering technology can be replaced, and the method is suitable for a high-speed printing and packaging production line and is suitable for protection of various paper packages such as digital electronics, cosmetics and tobacco and wine. The problems that a traditional BOPP covering film is difficult to degrade, wear resistance and degradation of existing water-based plastic replacing oil are difficult to consider, and quick drying conflicts with film forming are solved.

The invention relates to a method for treating printing and dyeing wastewater. The method comprises the following steps: neutralization regulation, primary filtration for removing scum, decoloration and flocculation, secondary filtration, pH regulation, catalytic degradation under visible light, MBR membrane treatment and discharge. The printing and dyeing wastewater treatment process provided by the invention is compact in link, the first-stage filtration, decoloration flocculation and second-stage filtration in the treatment process all adopt conventional technical means in the field, the operation is simple and convenient, the cost is low, and a special bismuth-based aerogel composite material is used as a catalyst for photocatalytic degradation at the rear end; the aerogel is prepared by cross-linking a modified graphene oxide / BiOCOOH composite photocatalyst with an acrylic polymer matrix and then carrying out supercritical drying, so that macroscopic immobilization of a nano catalyst is realized. According to the method, the technological process is compact, the cationic dye which is difficult to biologically treat can be efficiently degraded, the industrial problems that a powder catalyst is easy to lose and difficult to recycle are solved, key indexes such as COD and chromaticity of the treated wastewater are remarkably reduced, and the treated wastewater can be discharged after reaching the standard.

The invention discloses an environment-friendly fluoride-free bio-based paper protective coating easy to recycle as well as preparation and application thereof, and belongs to the technical field of paper-based packaging materials. The composition is mainly prepared by compounding a polyhydroxyalkanoate emulsion and a water-based acrylic polymer with a specific acid value and glass transition temperature. According to the scheme, a unique pH response switch is constructed, and the contradiction that an existing bio-based coating is high in brittleness and water resistance and alkaline repulping are difficult to consider at the same time is effectively solved on the premise of not depending on wax and additionally adding a cross-linking agent or a high-content surfactant. Compared with a traditional multi-component or high-energy-consumption recovery scheme on the market, the method has the advantages that excellent oil-proof and barrier properties and efficient fiber recovery under mild conditions can be realized only by a simple binary system, the formula complexity and the recovery cost are remarkably reduced, and the method has excellent environmental protection benefits and industrial application values.

The application provides a light valve dimming film and a preparation method and application thereof. The dimming film comprises a suspension and a base polymer, the suspension comprises an acrylic polymer and dimming particles, and the base polymer is selected from an epoxy resin; the mass ratio of the dimming particles, the acrylic polymer and the epoxy resin is (0.1-5):100:200-350. The dimming film uses the epoxy resin as the base polymer, the acrylic polymer in the suspension can be dispersed into the epoxy resin in the form of small droplets with micron-level size, a phase separation state is formed, and the particle sedimentation problem is improved; meanwhile, the two polymers have similar refractive indexes, so that the prepared dimming film has good transparency. In addition, the size of the droplets in the dimming film is more conducive to the flipping of the dimming particles, so that the light transmittance is improved, and the performance of an SPD device is improved.

Provided is a double-sided adhesive pressure-sensitive adhesive sheet that exhibits good shear properties when configured with a pressure-sensitive adhesive layer containing a water-dispersible acrylic polymer. A double-sided adhesive pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer is provided. The pressure-sensitive adhesive layer contains a water-dispersible acrylic polymer, a tackifying resin, and a water-soluble crosslinking agent. The pressure-sensitive adhesive layer has a thickness of 50 μm or less.

Disclosed is a method for manufacturing a toothpaste composition, the method comprising adding at least one humectant to a mixing vessel and at least one salt to a mixing vessel; applying an agitating action to the mixing vessel to create a humectant and salt mixture; adding an acrylic polymer and at least one thickening agent to the humectant and salt mixture in the mixing vessel; applying an agitating action to the mixing vessel to create a functionalized acrylic polymer, wherein the functionalized acrylic polymer is homogenous; and optionally adding to the functionalized acrylic polymer one or more additional components of the toothpaste composition.

Cosmetic cleansing composition comprising surfactants The present invention relates to a cosmetic composition comprising, in a cosmetically acceptable medium: an aqueous phase, at least one amphoteric surfactant chosen from betaines, at least one linear α-olefin sulfonate, at least one ethylene glycol ester, and at least one crosslinked anionic acrylic polymer. Figure for abstract: none

A method for manufacturing a honeycomb structure includes preparing a honeycomb formed body by extruding a green body comprising a ceramic raw material, a pore-forming material, a binder and a dispersion medium through a die that defines opening shapes of the plurality of cells; drying the honeycomb formed body to obtain a honeycomb dried body; and firing the honeycomb dried body to obtain a honeycomb fired body in which a thickness of the partition walls is 50 μm or more and 210 μm or less, and a porosity of the partition walls is 45% to 60%; wherein the pore-forming material contains crosslinked starch and an acrylic polymer, and the green body contains 1.0 parts by mass or more of crosslinked starch with the proviso that a P content is less than 0.2 parts by mass, with respect to 100 parts by mass of the ceramic raw material.

The application discloses a saline-alkali soil improvement method and belongs to the technical field of saline-alkali soil improvement. The method comprises the following steps: in a screw extruder, humic acid and acrylic acid are grafted and polymerized in a reaction section to form humic acid grafted acrylic acid polymer; N-[2-(2-methoxy-5-nitro-phenoxy)ethyl]pyridine, [2-(3,4-dichlorophenoxy)-ethyl]hexadecyl diethyl ammonium bromide and furfural residue are sequentially added at the opening of a conveying section, and after passing through a mixing section, the mixture is extruded and granulated to obtain a conditioner; according to weight parts, the furfural residue is 70-90 parts, the humic acid grafted acrylic acid polymer is 10-25 parts, and the N-[2-(2-methoxy-5-nitro-phenoxy)ethyl]pyridine and [2-(3,4-dichlorophenoxy)-ethyl]hexadecyl diethyl ammonium bromide are 1-5 parts. The conditioner is applied to saline-alkali soil by being scattered in the soil during ploughing or being applied to the soil by hole planting during sowing, so that the organic matter content of the soil can be increased, the saline-alkali components can be separated from the roots of crops, the stress of the saline-alkali soil on the crops can be effectively reduced, and the yield of the crops can be improved.

This invention discloses a production process for sulfur dioxide-resistant electroplated aluminum and the resulting electroplated aluminum, relating to the field of electroplated aluminum. The production process for sulfur dioxide-resistant electroplated aluminum includes: coating a release coating onto a base film layer to obtain a release layer; coating an imaging coating onto the release layer to obtain a color layer; molding and aluminum plating the color layer to obtain an aluminum-plated layer; and coating the aluminum-plated layer with an adhesive to obtain electroplated aluminum. The imaging coating comprises the following raw materials in parts by weight: 80-100 parts of modified monomeric acrylic polymer, 7-10 parts of isocyanate curing agent, 3-6 parts of highly branched semi-crosslinked polyurethane prepolymer, 0.8-1.5 parts of dispersant, 0.2-0.5 parts of defoamer, 35-50 parts of methyl ethyl ketone (MEK), and 35-50 parts of pentamidine ketone (PHK). The highly branched semi-crosslinked polyurethane prepolymer has a molecular weight of 110,000-120,000 and a softening point temperature of 220-240°C. This application provides electroplated aluminum resistant to sulfur dioxide corrosion.

COMPOSITION COMPRISING A NEUTRALIZED POLY(METH)ACRYLIC ACID POLYMER The present invention relates to a composition comprising: (a) at least one neutralized poly(meth)acrylic acid polymer; (b) at least one organic acid or salt thereof; and (c) water, wherein the amount of the neutralized poly(meth)acrylic acid polymer (a) is 0.5% by weight or more, relative to the total weight of the composition. The composition according to the present invention may exhibit a sorbet-like appearance and a textural transformation (from a gel / cream texture to a liquid texture) during application and an absence of a sticky sensation after application. Figure for abstract: none