91results about How to "Facilitate blending" patented technology

The invention provides a water-borne woodware coating containing a modified polyurethane emulsion and a preparation method thereof. The water-borne woodware coating is composed of the following components: water, a thickening agent, a defoaming agent, a pH regulator, an antifreezing agent, a film-forming auxiliary agent, the modified polyurethane emulsion, a levelling agent, a nano inorganic antibacterial aldehyde removing agent, and water-borne paint inorganic hardening resin. The selected modified polyurethane emulsion includes a self-crosslinkable polyurethane acrylate composite emulsion, a core-shell interpenetrated network-structure polyurethane acrylate copolymer emulsion, a silane coupling agent modified polyurethane acrylate composite emulsion, and an epoxy resin modified polyurethane emulsion. The plurality of emulsions are added to the water-borne woodware paint, and thus the coating has the properties of high hardness and adhesion force, and good water resistance, alcohol resistance and pollution resistance; the selected nano inorganic antibacterial aldehyde removing agent has the effects of environmental protection, safety, no toxicity, and long-term bacterial resistance; and the selected water-borne inorganic hardening resin is used for improving the hardness, the adhesion force and the chemical resistance of the water-borne paint.

An economical blender with a removable, motor driven spindle assembly to perform blending, a motor driven elevator used to lift a cup with food or beverage up to the spindle assembly and a liquid reservoir which allows liquid to be inserted into the food or beverage during blending. The removable spindle assembly has a quick release coupler and a compression spring which connects the quick release coupler to a cup cover. Blending is accomplished by connecting a motor driven inner spindle drive shaft to a concentric outer spindle drive tube through cogged couplers. The outer spindle drive tube powers a blending tool and, like the blending tool, is removable with the spindle assembly for cleaning.

The invention relates to a low-temperature toughened and reinforced PC/PBT (polycarbonate/polybenzothiazole) alloy material and a preparation method thereof. The PC/PBT alloy material is prepared from raw materials such as PC resin, PBT, a low-temperature toughening agent, a reinforcing agent, a bulking agent and an antioxidant, wherein the toughening agent is diolefin-styrene-methyl methacrylate (MBS/MIS) which is of a core-shell structure, the reinforcing agent is non-alkali chopped glass fiber, the bulking agent is an ethylene-methyl acrylate copolymer (EMA), and the antioxidant is prepared by compounding an antioxidant 1010 and an antioxidant 168. The preparation process disclosed by the invention is implemented by using single and double screw extruders in cooperation with a two-step extrusion process, the technical characteristic is stepwise feeding, and the preset temperatures of the two extruders are differentiated. Through the implementation of the formula and the process, a low-temperature-resistant and high-strength PC/PBT alloy material which is excellent in performance and good in appearance can be prepared, and the PC/PBT alloy material can be widely used in the aspects of auto parts, bumpers, elevator parts, electrical and electronic engineering, engineering assembly parts for cold regions, and the like.

The invention discloses a rice-husk-based carbon/silicon composite used as a rubber filler and a preparation method thereof, and belongs to the technical field of the preparation of carbon/silicon fillers. The method comprises the following steps of: pre-carbonizing a raw material, namely rice husks in a muffle furnace at low temperature so as to remove the moisture and volatile substances from the rice husks, carbonizing in a vacuum sintering furnace, and controlling sintering conditions to obtain a rice-husk-based carbon/silicon composite with high silicon content, wherein the carbon accounts for 65 to 75 percent of the total weight of the carbon/silicon composite, the nitrogen adsorption Brunauer-Emmett-Teller (BET) specific surface area is 12 to 75m<2>/g, and the dibutyl phthalate (DBP) absorption number is 1.7 to 3.8cm<3>/g; and treating the rice-husk-based carbon/silicon composite with high silicon content by using solution of sodium hydroxide or potassium hydroxide, and dissolving out most of silicon dioxide to obtain the rice-husk-based carbon/silicon composite with low silicon content, wherein the carbon accounts for 85 to 98 percent of the total weight of the rice-husk-based carbon/silicon composite, the specific surface area is 120 to 196 m<2>/g, and the DBP absorption number is 2.1 to 3.0cm<3>/g. The rice-husk-based carbon/silicon composite serving as a reinforcingagent and a filler is widely applicable to various models of rubber varieties; moreover, the rice-husk-based carbon/silicon composite is an excellent dual phase filler.

The invention relates to an olefin copolymer with polar monomer structural units and a preparation method of the olefin copolymer with the polar monomer structural units. The olefin copolymer is prepared from polar monomers, a monomer 4-methyl-1-pentene and other monomers through copolymerization. The general formula of the olefin copolymer is as shown in the description, wherein n, m and p respectively represent number-average degrees of polymerization of the monomer 4-methyl-1-pentene, the polar monomers and the other monomers in the copolymer, and the monomer structural units are randomly distributed in the sequence and are isotactically distributed in a stereoscopic structure. By introducing polar monomer structural units in a polymer chain, the surface performance of the polymer can be effectively improved when a high melting point is maintained, and the surface energy is improved. The preparation method comprises the step of carrying out copolymerization on the polar monomers, the monomer 4-methyl-1-pentene and the other monomers by virtue of a polymerization catalyst system, so as to prepare the olefin copolymer with the polar monomer structural units, wherein the polymerization catalyst system is capable of polymerizing alpha-olefin into an isotactic polymer and contains transition metal compounds.

The invention relates to a grade-1E K2-type radiation cross-linked halogen-free flame-retardant cable material for a nuclear power plant and a preparation method thereof, belonging to the field of new chemical materials. The cable material comprises raw materials including base resin EVA (ethylene-vinyl acetate copolymer), flame retardants A and B, a flame retardant synergist, basic antioxidants 1010 and 168, a radiation-resistant auxiliary agent 4,4'-thiobis(6-tertiary-butyl-3-methylphenol) and a processing agent; and the preparation method comprises the process steps of material weighing, pretreatment, mixing, extrusion granulation, drying and the like. The cable material is a red-phosphorus-free halogen-free environment-friendly flame-retardant material, phenoxy polyphosphazene is used as a main flame retardant in a flame-retardant system of the cable material, an inorganic flame retardant is auxiliary, the flame-retardant system accounts for a small weight percentage of the material, and the cable material is high in flame-retardant efficiency and excellent in mechanical properties, processability and radiation resistance, so that the cable material is a novel environment-friendly flame-retardant material which has excellent comprehensive properties and is suitable for a nuclear power plant environment.

The invention discloses phenol-terminated polysiloxane, a preparation method thereof, and a polysiloxane-polycarbonate copolymer. The method includes the following steps: a) catalyzing a reaction of tetramethyldisiloxane and an allyl-containing phenolic compound by using a transition metal catalyst A to prepare phenol-modified hydrogen-containing silane having a phenol group at one end and a silicon-hydrogen bond at one end; b) performing separation by using reduced-pressure rectification to obtain phenol-modified hydrogen-containing silane with purity of >=99%; and c) catalyzing B by using atransition metal catalyst, performing a hydrosilylation reaction on the pure phenol-modified hydrogen-containing silane and polysiloxane with a vinyl end group to obtain the polysiloxane containing aphenol group at the end group. The content of the free allyl-containing phenol compound in the phenol-terminated polysiloxane is 100 ppm or less, the phenol group capping rate is 98% or more, and theresidual metal platinum content is <= 5 ppm. The phenol-terminated polysiloxane is used for preparing the modified polycarbonate, and the obtained polysiloxane-polycarbonate copolymer has a high polysiloxane content, and excellent heat resistance and yellowing resistance.

The components of and a proton conducting membrane (PCM) produced from a host polymer and an attached or physically blended in hydrogen cyano fullerene proton-source agent, with the physical blending of the host polymer and hydrogen cyano fullerene further promoted by a poly(ethylene oxide) attached fullerene mixing agent.

The invention discloses a preparation method of an antimony doped nanometer stannic oxide powder. The preparation method comprises the following steps: (1) mixing an antimonic salt and a tin salt, dissolving in an ethyl alcohol solution, and conducting ultrasonic concussion for 10-20 minutes at the room temperature to obtain a solution A; sequentially dissolving butanetetracarboxylic acid and ammonium dihydrogen phosphate into deionized water to obtain a solution B; (2) mixing the solution A and the solution B, conducting ultrasonic concussion for 5-10 minutes at the room temperature, adding alkali and diethanol amine at the stirring state, enabling the pH of the solution to reach 8-9, heating to 65-75 DEG C, reacting for 2-4 hours to obtain a precipitate precursor; and (3) washing, dryingand calcining the precipitate precursor to obtain the antimony doped nanometer stannic oxide powder. The prepared antimony doped nanometer stannic oxide powder is even in particle size distribution and good in dispersity, the average particle size of the prepared antimony doped nanometer stannic oxide powder is less than 120 nm, the electrical resistivity is less than 25 ohm.cm, the specific surface area is 4-6 m<2>/g, and the electrical conductivity is excellent.

The invention discloses an environment-friendly adhesive and relates to the technical field of adhesives. A preparation method comprises the following steps: (1) carrying out phenolation modificationon starch; (2) modifying rosin resin; (3) synthesizing the environment-friendly adhesive. The environment-friendly adhesive prepared by the preparation method does not contain formaldehyde and has notoxin and no odor; a production technology is simple and the quality of a product is excellent; the environment-friendly adhesive has the advantages of good bonding property and good construction property, rapid drying speed, strong adhesive force and high bonding strength; the starch is subjected to the phenolation modification so that a prepared phenolated starch solution has good film forming,gelling, sizing, thickening and blending properties and the like; the environment-friendly adhesive has great viscosity and typical pseudoplastic performance; the bonding strength of the adhesive canbe effectively improved.

The invention provides nanometer titanium dioxide modified starch mixed slurry for textile use. The nanometer titanium dioxide modified starch mixed slurry comprises starch, PVA (polyvinyl acetate), acrylic ester, soybean protein, an organic silicone emulsion, sodium hydroxide, nanometer titanium dioxide and water; and the specific preparation method comprises the following steps: adding acetate starch to 5%-7% of nanometer titanium dioxide solution, and stirring at a high speed for 30-50 minutes so as to disperse the starch evenly, then adding the PVA, the acrylic ester, the soybean protein and the organic silicone emulsion, and adding sodium hydroxide to adjust the pH value to be 7-10; stirring at the speed of 150-200r/min for 30 minutes, heating to 80-90 DEG C and stirring at a constant temperature for 2-3 hours, so as to obtain the nanometer titanium dioxide modified starch mixed slurry for textile use. The sizing property of the nanometer titanium dioxide modified starch mixed slurry for textile use exceeds the sizing property of a mature formula with relatively high PVA content; and the nanometer titanium dioxide modified starch mixed slurry is good in degradation property and small in environmental burden, and can be applied to the sizing process of yarns and fabric.

The invention provides a composite rubber glove and a preparation method thereof. According to the invention, the rubber layer is formed by spraying rubber cement on the surface of the lining of a fiber glove, so that the composite rubber glove is obtained. The rubber cement is prepared by taking maleic anhydride grafted ethylene-propylene terpolymer, sucrose polyester modified isoprene rubber, and acrylic acid modified nitrile rubber as main raw materials, and straw powder and wollastonite powder are added, so that the composite rubber glove has good mechanical property, heat resistance, aging resistance and air permeability.

The invention relates to a white carbon black reinforced rubber composition for semi-steel tire treads, and belongs to the technical field of tire and rubber processing. The composition comprises, by mass, 50-60 parts of HVPBR, 40-50 parts of NR, and 50-70 parts of white carbon black; and a processing assistant and a filler can be added according to routine tread rubber performances. The high wet skid resistance and the low rolling resistance of the HVPBR containing a branched structure are used, the branched structure is in favor of realizing rubber and white carbon black blending and realizing processing performances and the mechanical strength of the NR, and the HVPBR, the NR and the white carbon black are compounded and are used in the production of tire treads. Compared with synthetic rubber materials for traditional semi-steel tire treads, high vinyl polybutadiene (HVPBR) has the advantages of low cost, improvement of the compatibility of the white carbon black and the rubber material, improvement of the processing performances, guaranteeing of excellent wet skid resistance, reduction of the rolling resistance and the dynamic heating of the treads, and no obvious traction loss.

Novel acidic hydrogen cyano fullerenes and cyano fullerenes are disclosed that may be utilized as components in a proton conducting membrane (PCM). In particular, C₆₀H(CN)_n, wherein n>1, and C₆₀(CN)_n, wherein n>2, species are provided.

The invention discloses a self-repairing polyurethane heat insulation film as well as a preparation method and application thereof. The heat insulation film is formed by sequentially arranging a thermoplastic polyurethane film layer, a heat insulation layer and a self-repairing coating. The thermoplastic polyurethane film layer is prepared from the following raw materials: TPU master batch and modified nano indium antimony oxide. The raw material formula of the heat insulation layer comprises tungsten trioxide powder, a dispersing agent, a photoinitiator, polyurethane acrylate, tridecafluorooctyl methacrylate, 2-(perfluorooctyl) ethyl methacrylate, hollow glass beads and a cross-linking agent. The heat insulation film is good in heat insulation performance, capable of reducing light transmission and heat transfer and generating heat insulation, inflaming retarding and abrasion resisting effects, has a self-repairing function, is good in scratch resistance and has a wide application prospect in the aspect of automobile safety protection films.

The invention discloses a phase-change energy-storage microcapsule with a shear thickening effect, and a preparation method and application thereof. Alkanes with different melting points are taken ascore materials, and the phase-change energy-storage microcapsule taking polyurethane as a shell material is prepared by an emulsifier-free emulsion polymerization method. By changing the types of thecore materials, the working temperature and the heat storage performance can be changed. The core-shell structure of the phase-change energy-storage microcapsule has phase-change energy storage and shear thickening properties at the same time. The phase-change microcapsule material is technically endowed with the shear thickening property, the application range of the phase-change microcapsule material is effectively widened, and the phase-change microcapsule material has a wide application prospect in the wearable field.

The invention provides a light high-strength ABS wood-plastic foamed board and a preparation method thereof. The wood-plastic foamed board is prepared from the following components in parts by weight:20-30 parts of ABS resin particles, 10-20 parts of maleic anhydride grafted ABS resin particles, 40-60 parts of wood flour, 5-10 parts of coated flame-retardant polypropylene fibers, 5-7 parts of modifier and 2-5 parts of foaming agent and 0-6 parts of a filler. Reasonable raw material selection and self-made pretreatment of part of raw materials are carried out, the reaction combination effect between the materials is effectively improved and the performance effect is higher; and the ABS is adopted as a board substrate, the comprehensive quality is good, the applicability is high, the prepared board is light, high in strength and excellent in corrosion resistance, mildew resistance, acid and alkali resistance, water resistance, heat preservation, flame retardance and the like, the mechanical property is remarkably improved, and the popularization and application value is high.

The invention provides an SBR sole material for shoes of old people. The SBR sole material is prepared from the following components in parts by weight: 40-60 parts of SBR, 9-14 parts of IIR, 6-7 parts of a compatilizer, 8-9 parts of hollow glass microsphere, 6-8 parts of softening oil, 10-12 parts of a filling material, 3-6 parts of a reinforcing agent, 0.6-1.1 parts of an anti-aging agent, 0.5-1 part of a vulcanizing agent, 0.7-1.2 parts of vulcanizing accelerator, 0.5-1 part of a coupling agent, 2-3 parts of zinc oxide and 1-2 parts of stearic acid. The invention further provides a preparation method of the sole material. The provided sole material has better vibration reduction performance and shock resistance, and can better meet requirements of the shoes of old people.