21 results about "Compatibilization" patented technology

The invention provides a wax-based binder for a compacting process in powder metallurgy as well as a preparation method and an application thereof. The binder consists of the following components by mass percent: 60 to 80 percent of solid paraffin, 3 to 10 percent of liquid paraffin, 1 to 10 percent of naphthalene, 2 to 9 percent of polyethylene vinyl acetate, 4 to 15 percent of polyolefin and 1 to 10 percent of stearic acid. The components of the binder are good in compatibility, the rheological property is good, the solvent degreasing rate is high, the retraction property is moderate, the degreasing blank is few in flaws, and the conformality is good; the binder also has the characteristics of cleanliness, low residue, little pollution and the like.

The invention provides a 3D-printed xanthan glue gel scaffold. The scaffold is prepared by the following steps: S1, dissolving xanthan gum in ultrapure water at normal temperature to prepare a xanthangum aqueous solution, adding methacrylic anhydride, performing full stirring, adjusting the pH value of a system to 8-10, continuing reaction for 3-5 hours, and dialyzing and freeze-drying the solution to obtain xanthan gum methacrylate; and S2, dissolving the xanthan gum methacrylate in sterile PBS solution containing a photoinitiator to prepare sol in a sterile environment, uniformly mixing thesol and cartilage cells, performing extrusion printing by using a 3D biological printer to form the scaffold, and irradiating the scaffold with ultraviolet light for cross-linking so as to obtain the3D-printed xanthan glue gel scaffold. The invention also provides a preparation method of the 3D-printed xanthan glue gel scaffold. According to the 3D-printed xanthan glue gel scaffold provided by the invention, the mechanical property is adjustable, the shape and the microstructure are controllable, the biocompatibility is good, and the scaffold can be compounded with cartilage cells.

The invention relates to a preparation method of a glowing nanometer fibre with the biocompatibility. The preparation method comprises the following steps of dissolving carbon nanometer particles in a solvent, adding a high molecular material under a stirring condition in the mass ratio of the high molecular material to the carbon nanometer particles being (0.5:1)-(1:2), and stirring for 1-3 hours so as to obtain a uniform spinning fluid ultimately; injecting a spinning liquid into a needle cylinder, regulating an electrostatic spinning technology, collecting a layer of uniform white fibres which are collected from a receiving aluminum foil; and putting the white fibres into a high-temperature pipe-shaped atmosphere furnace, inputting nitrogen, heating to 600-1000 DEG C, carrying out heat preservation for 1-5 hours, and finally cooling to the room temperature so as to obtain the glowing nanometer fibre containing the carbon nanometer particles. The obtained fibre has the good biocompatibility, meanwhile, the fibres have a glowing property, the glowing nanometer fibre is suitable for being used in a biomedical field, and the glowing nanometer fibre is particularly utilized as a bracket material and is convenient to anaphase observation. The preparation method provided by the invention is simple, the production cost is low, and the preparation method can further meet the production and application requirements.

The invention discloses a grafted LLDPE (Linear Low-Density Polyethylene) based metal bonding film, belonging to the field of bonding agents. The grafted LLDPE based metal bonding film is prepared from raw materials through granulating and film blowing, wherein the raw materials comprise the following ingredients in parts by mass: 100 parts of LLDPE, 1.5-3 parts of maleic anhydride, 0.05-0.3 part of a peroxide initiator, 0.5-1.5 parts of an electron donor and 0.1-0.5 part of an antioxidant. The grafted LLDPE based metal bonding film disclosed by the invention has the advantages that the metallic material bonding force is high and the compatibility with polar polymers is good.

The invention discloses an anti-corrosion power protection pipe which is characterized by being prepared from the following raw materials in parts by weight: 100-130 parts of polyvinyl chloride, 2-4 parts of magnesium hydroxide, 0.1-0.4 part of stearic acid, 6-10 parts of calcium carbonate, 0.2-0.5 part of sodium lignosulfonate, 1-2 parts of nano antimony trioxide, 0.5-1 part of sodium oleate, 0.4-1 part of a silane coupling agent kh550, 0.5-0.8 part of hexamethylphosphoramide, 1-2 parts of a quartz powder, 2-3 parts of wollastonite fiber, 1-2 parts of an anti-aging agent 4010, 2-3 parts of urea, and a proper amount of water. The added hexamethylphosphoramide, quartz powder, wollastonite fiber and urea are mixed under certain conditions, so that the dispersion, compatibility and the like of a filler in PVC are promoted to a great extent, corrosion resistance, aging resistance, flame retardancy, and high mechanical strength and toughness are also improved, and the service life of the anti-corrosion power protection pipe is prolonged.

The invention belongs to the field of intumescent flame retardants, and particularly relates to an olefin halogen-free flame retardant and a preparation method thereof. The olefin halogen-free flame retardant comprises the following raw materials by mass: 100 parts of a flame retardant, 0.5-3 parts of a coupling agent, 3-10 parts of an active functional group grafted olefin polymer and 0.1-3 parts of an antioxidant. In the preparation method, the flame retardant is treated by surface olefination, so that phosphorus-nitrogen flame retardant with a polar molecular structure and non-polar olefin polymers (such as PP, PE, etc.) have good compatibility. An excellent flame retardant effect is provided under the condition of keeping the performance of the materials.

The invention belongs to the technical field of acid bright copper plating additives and relates to a PEG coupled heterocyclic compound and application thereof in acid bright copper plating. The PEG coupled heterocyclic compound can be used as a leveling agent and a grain refiner, more importantly, can increase the solubility of a slightly soluble component in a brightener in a water phase, effectively avoid the precipitation of the slightly soluble component, meanwhile, improve the compatibility of the slightly soluble component with other components in the brightener, maintain the balance among the components, and avoid the problem of proportional imbalance caused by overlarge consumption speed difference or partial precipitation of the components; the PEG coupled heterocyclic compound,a polyether surfactant and a dithionate compound are pre-prepared into the brightener to be applied to acid copper plating; and through the synergistic effect of the three compounds, the stability ofan MN type brightener system is improved, and meanwhile, the current density range is widened on the basis that good leveling performance is ensured.

The present invention relates to a surface-modified ultraviolet blocking powder obtained by reacting an ultraviolet blocking powder including a chloroacetyl group, a phospholipid monomer including an unsaturated bonding, and a catalyst inducing the reaction of the chloroacetyl group and the unsaturated bonding. According to the surface-modified ultraviolet blocking powder of the present invention, the surface may be modified using an effective method, and through chemical bonding (covalent bonding) and as a result of surface modification, the stability of the powder is high. In addition, since the surface modification is performed by using a biocompatible component, the ultraviolet blocking composition including the surface-modified ultraviolet blocking powder may provide ultraviolet blocking properties and biocompatibility at the same time.

The invention belongs to the technical field of thermoplastic elastomers, and particularly relates to a high-filling scratch-resistant extrusion-grade thermoplastic elastomer material and a preparation method thereof.The thermoplastic elastomer material is prepared from, by weight, 100 parts of styrene elastomers, 30-150 parts of filling oil, 10-300 parts of polyolefin, 1-50 parts of a slipping auxiliary, 50-300 parts of modified inorganic filler and 0.1-10 parts of a lubricating agent. According to the high-filling scratch-resistant extrusion-grade thermoplastic elastomer material, the base material styrene elastomer is good in compatibility with the filling oil and the polyolefin, all the components can be uniformly mixed to improve the processing performance, and the inorganic filler is added into the system after being modified and can be more uniformly dispersed, so that the scratch-resistant extrusion-grade thermoplastic elastomer material is prepared. And the temperature resistance, sound insulation and other properties of the material can be effectively improved, the scratch resistance of the material can be significantly improved, and the surface defects such as patterns, flow marks, shrinkage pits, peeling, bumps and the like formed on the surface of the product due to poor fusion of the directly added inorganic filler and the system are avoided.

The invention relates to the technical field of concrete admixtures, in particular to an esterification product for preparing a water reducing agent, a preparation method of the esterification product, a high-workability polycarboxylic acid water reducing agent and a preparation method of the high-workability polycarboxylic acid water reducing agent, and the esterification product for preparing the water reducing agent is excessive unsaturated carboxylic acid and/or unsaturated carboxylic acid anhydride. According to the esterification product for preparing the water reducing agent, the main chain of the polycarboxylic acid water reducing agent is provided with phenoxyethanol and/or phenoxyisopropanol, fumarate and maleate structural units, the polycarboxylic acid water reducing agent with corrosion resistance is obtained, and the corrosion resistance of the polycarboxylic acid water reducing agent is improved. The polycarboxylate superplasticizer prepared by the preparation method does not need to be compounded with a small-molecular preservative, so that the problem of uneven distribution caused by poor compatibility of the preservative and the polycarboxylate superplasticizer does not exist, and the final product is a stable macromolecular structure, so that the polycarboxylate superplasticizer can tolerate high temperature higher than 50 DEG C, and the high-temperature corrosion resistance is more excellent.

The invention discloses a preparation method of an electrochemiluminescence sensor for detecting organochlorine pesticides. The preparation method is characterized in that firstly a novel two-dimensional nanocomposite-titanium dioxide/molybdenum disulfide composite, namely an iron and manganese codoped titanium dioxide nanodiamond and molybdenum disulfide in-situ composite two-dimensional nanocomposite FeMn-TiO2/MoS2, is prepared, organochlorine pesticide antibodies are loaded by utilizing the good biocompatibility and large specific surface area of the material, during detection, iron and manganese codoped titanium dioxide can catalyze hydrogen peroxide to generate O2 in situ and carry out electrochemical reaction with K2S2O8 in a base solution to generate electrochemiluminescence signals, and the impacts of specific quantitative combination of the antibodies and antigens on the electron transport capacity are utilized, so that the current intensity is reduced, thus reducing the luminescence intensity and finally achieving construction of the electrochemiluminescence sensor for detecting the organochlorine pesticides by adopting an unmarked electrochemiluminescence method.

The invention relates to a preparation method of a heat-conducting flame retardant, with a core-shell structure, which can improve the compatibility of a polymer matrix and has flame retardant and heat-conducting properties, and application of the heat-conducting flame retardant in a battery shell. According to the invention, magnesium hydroxide and a carbon-based nano-filler are subjected to chemical grafting modification through a silane coupling agent to reduce the surface polarity, and then are sealed and coated with silicon rubber, the carbon-carbon double bond of the silicon rubber and the magnesium hydroxide with the surface grafted with graphene aminopropyltriethoxysilane undergo an addition reaction to form a core-shell structure with a Si-O-Si bond to coat the surface of the magnesium hydroxide, so that the magnesium hydroxide is changed into a super-hydrophobic state from the original hydrophilic state. In addition,the Si-O-Si bond can form a ceramic structure to wrap the surface of the material in the high-temperature combustion process to form a compact carbon layer to isolate air, thereby achieving the purpose of flame retardance. The problems of hydrophilicity of magnesium hydroxide, compatibility of a polymer matrix and agglomeration of graphene are solved.

The invention relates to a functional slurry. The functional slurry comprises a carbon nano material, metal nanoparticles, carbonate particles and a matrix material, wherein the surface of the carbonnano material and the surface of the metal nanoparticles are connected with organic groups. The invention further relates to application based on the functional slurry, which comprises a functional layer prepared based on the functional slurry, a functional film and a preparation method thereof, a flexible pressure sensor based on the functional film and a preparation method thereof. The functional slurry provided by the invention has excellent dielectric properties, and the flexible pressure sensor has excellent flexibility, sensitivity, biocompatibility and relatively high electrical outputperformance.

The present invention relates to a porous structure-based magnetically actuated microrobot and a fabricating method therefor, wherein the porous structure-based magnetically actuated microrobot is based on a natural polymer having biocompatibility and biodegradability, so that the precise targeting of the porous microrobot through the attachment of magnetic nanoparticles and the drug and cell delivery using the porous microrobot can be attained.

The invention discloses a high-elasticity modulus and high-strength glass fiber laminated board and a preparation method thereof, and belongs to the technical field of laminated board preparation. The laminated board is prepared by coating glass fiber cloth with a mixed glue solution and then laminating and thermally curing the glass fiber cloth, the glass fiber cloth is a fabric of direct twistless roving, and the direct twistless roving is formed by coating the surface of glass fiber with an impregnating compound. The impregnating compound is prepared from the following components in parts by weight: a silane coupling agent, an epoxy resin emulsion, a waterborne polyurethane emulsion, a surfactant, a pH regulator and deionized water. According to the invention, the glass fiber cloth is modified through the silane coupling agent and the surfactant in a specific ratio, so that the compatibility of the glass fiber cloth and the phenolic resin is improved, and the prepared laminated board has higher elastic modulus and strength.

The invention discloses an alkoxy ether dendritic hyperbranched polymer, and a preparation method and application thereof. The alkoxy ether dendritic hyperbranched polymer disclosed by the invention is a temperature and pH dual-response type dendritic hyperbranched polymer. Hyperbranched polyethyleneimine is modified with alkoxy ether dendronized elements with excellent temperature-sensitive characteristics, and dendronized hyperbranched polymers with different grafting rates are prepared by changing the ratio of polyethyleneimine to alkoxy ether. The polymer prepared by the invention has excellent temperature and pH dual-response behaviors and excellent biocompatibility, can realize envelope control of guest molecules as a novel intelligent molecular container, and has potential application in the fields of drug controlled release, sensors and the like.

The invention relates to a compatibilizer for a powder injection molding process, an adhesive, a feed and a preparation method. The compatibilizer for a powder injection molding process is a comb-shaped copolymer with the molecular weight of 50000-100000 and the molecular structural formula of -PMMA-g-MPEG-, g represents grafting, and the composition structure is that a rigid main chain is grafted with a flexible side chain to form a comb-shaped molecule. A segmented copolymer with a special structure is synthesized as a compatibilizer, so that the compatibility of two polymers with poor compatibility originally is greatly improved, the mixing time of a PMMA + PEO adhesive system is correspondingly shortened, the use amount of the adhesive is reduced, and the volume content of solid powder in an injection blank is increased. The shrinkage rate of a green body of a feed prepared from the adhesive in the sintering process is reduced, sintering deformation is reduced, and the sintering density of a final sintered body is improved. The preparation method is simple, raw materials are easy to obtain, and the effect is obvious.