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40 results about "Glyceryl methacrylate" patented technology
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Polymer grafting type hydrophobic charge-induced chromatography medium and preparation method thereof
ActiveCN104624171APromote regenerationEasy to clean and regenerateOther chemical processesSolid sorbent liquid separationGlycidyl methacrylateProtein target
The invention discloses a poly-glyceryl methacrylate grafted hydrophobic charge-induced chromatography medium and a preparation method thereof. The preparation method comprises the following steps: taking hydrophilic porous microspheres as a chromatography medium, activating the chromatography medium by virtue of an activating reaction, carrying out a poly-glyceryl methacrylate polymerization reaction on the surface of the activated chromatography medium, thereby obtaining a polymer grafted chromatography medium; and finally, coupling a hydrophobic charge-induced ligand, thereby obtaining the polymer grafting type hydrophobic charge-induced chromatography medium. The chromatography medium disclosed by the invention has the poly-glyceryl methacrylate grafting chain and hydrophobic charge-induced functional ligand, the ligand density is high, the dynamic loading capacity of target proteins such as antibodies is obviously improved at high flow velocity, the chromatography medium has salt-independent adsorption characteristics, and desorption and recovery can be realized by changing the pH value of the solution to be weakly acidic. The preparation process of the novel medium is simple and convenient, strict oxygen removal in the grafting reaction process is not needed, and the amount of catalysts and ligand is small.
Owner:ZHEJIANG UNIV
Polypropelene composition with scratch resistant capability and processes for producing same
ActiveCN101173074BImprove aging resistanceGood weather resistanceGlycidyl methacrylateHome appliance
The invention relates to a polypropylene combination with anti-scoring property. The polypropylene combination is characterized in that the invention consists of the following raw materials by weight part: 40 to 100 parts of polypropylene, 0.5 to 5 parts of maleic anhydride or glyceryl methacrylate copolymer or graft Alpha- olefin copolymer, 0.2 to 2 parts of aliphatics acid amide, 0 to 40 parts of mineral filler, 0 to 20 parts of toughening agent, 0.1 to 1 part of antioxidant agent, and 0.1 to 1 part of retardant agent. The polypropylene combination of the invention is provided with good aging-resistant, flame retardant and anti-scoring properties, and is used for vehicle inner decorating pieces, home appliances shells, etc.
Owner:SHANGHAI KINGFA SCI & TECH +1
Overall plastic microcosmic laminar composite and its preparation method
InactiveCN1733829ATear resistantPrevent leakageLinear low-density polyethyleneLow-density polyethylene
The invention relates to overall-plastic microcosmic layered composite material with the weight proportion of material as: 75~85% polyvinyl resin composed of HDPE, LDPE, and LLDPE, 5~16% aromatic nylon selected one between nylon 6, nylon 66 and nylon 1010, 3~8% montmorillonite selected one between NB901 and NB908, and 5~13% grafts selected one between ethylene-vinyl acetate copolymer, polyvinyl maleic anhydride grafts, and glyceryl methacrylate. Wherein, the preparation method comprises: using material to mix and granulate, using extrusion calendar to tablet and form for one time. The product can not only fit to package request for grease, organic solvent, etc, but also needs no special device, and is photodegradated.
Owner:于志文
Preparation method of light-diffusion master batch
InactiveCN102337016AGood dispersionSolve the problem of uniform lightGlobesPolymer scienceProcedure Agents
The invention relates to the technical field of chemical material used for lighting, and particularly relates to a preparation method of a light-diffusion master batch. The preparation method comprises the following steps of: uniformly mixing 13-25% of light diffusion agent, 5-6% of processing aid and 69-82% of base resin to obtain a mixed material; granulating the mixed material by a double-screw extruder; and finally cooling the extruded material and cutting by a dicing machine to obtain the light-diffusion master batch, wherein the light diffusion agent is one or more then one of phenyl methacrylate, phenyl ethyl-acrylate, ethyle methacrylate and glyceryl methacrylate; the processing aid is one or more than one of G78 wax, EVA (ethylene-vinyl acetate copolymer) wax and ethylene bis(stearamide) (EBS); and the base resin is polycarbonate. The light-diffusion master batch prepared by the preparation method provided by the invention has excellent diffusion effect, thus the problem of dodging is effectively solved.
Owner:ANHUI JIHONG MATERIAL TECH
Preparation method of high-modulus and high-damping composite
The invention discloses a preparation method of a high-modulus and high-damping composite. The preparation method comprises the steps of preparing a multi-block copolymer, namely PGMA (poly glyceryl methacrylate)-PBMA (poly butyl methacrylate)-PDMS (polydimethylsiloxane)-PBMA-PGMA, and preparing the damping composite. According to the preparation method the multi-block copolymer, namely PGMA-PBMA-PDMS-PBMA-PGMA crosslinks with 4,5-cyclohexene oxide-1,2-dodecanedioic acid diglycidyl ester to form an IPN (interpenetrating polymer network) macromolecule network structure under the action of a curing agent, namely m-phenylenediamine, the mechanical property of the damping composite is improved greatly by a fortifier carbon fiber, and the high-modulus and high-damping composite is prepared. The composite is molded by casting, has small curing shrinkage, and is applicable to some modules with complicated structures and high property requirements. According to the preparation method, the carbon fiber is added to modify the mechanical property of the epoxy resin base composite, so that the high-modulus damping composite can be prepared. The preparation method can be used for preparing materials with higher requirements on the mechanical property and damping property.
Owner:周元林
Sodium hyaluronate contained flexible hydrophilic contact lens and method for producing the same
ActiveCN101482625AImprove dehydrationReduce evaporationOptical articlesOptical parts(Hydroxyethyl)methacrylateGlycidyl methacrylate
The invention discloses a flexible hydrophilic contact lens containing sodium hyaluronate and preparing method thereof, the flexible hydrophilic contact lens consists of comonomers composed of methyl methacrylate, ethyl methacrylate, N-ethenyl pyrrolidone, glyceryl methacrylate, (bi)glycol dimethacrylate, UV absorbing agent, azo-bis-iso-heptonitrile and reduction blue rinsing dye, also comprises 0. 1-0. 2(volume) of sodium hyaluronate water solution, when being preparing, mixing the above substances; arranging in a mould for heat polymerization and additional vulcanization; then machining, hydrating, extracting and cleaning to obtain the flexible hydrophilic contact lens. The sodium hyaluronate adopted in the invention is high hydrotropic substance and has high wetting property and moisture-keeping property. The sodium hyaluronate is added in the traditional flexible hydrophilic contact lens material system, which can improve the water content of the material and can improve the wetting property and the moisture-keeping property of the material surface, the wearing time of the wearer can be prolonged.
Owner:GUANGZHOU BAOSHINING OPTICAL PROD
Special material composition with low metal cohesiveness for automobile tail fins
The invention relates to a special material composition with low metal cohesiveness for automobile tail fins. The material composition comprises the following components in parts by weight: 89-98 parts of acrylonitrile butadiene styrene (ABS) matrix with high melt strength, 1-3 parts of a fluorine-containing polymer and 2-8 parts of calcium carbonate, wherein the ABS matrix with high melt strength is a mixture of an acrylonitrile-butadiene-styrene copolymer, a styrene-maleic anhydride copolymer and an acrylonitrile-styrene-glyceryl methacrylate copolymer, and the calcium carbonate is calcite nanometer calcium carbonate of which the grain size is 20-200nm. The adhesive property of the material on metal is reduced by a special design of the formula, the problems of coke materials, black spots, surface scratches, long cleaning time and the like generated in the extruding and blow molding processes are greatly solved, and meanwhile, the material also has the characteristics of high melt strength, good dimensional stability, high heat resistance, good workability and the like.
Owner:SHANGHAI KUMHO SUNNY PLASTICS
Metal rust-preventative oil containing methacrylic acid isobutyl ester
InactiveCN103147081AGood gas phase anti-rust effectGood vapor phase antirust effectPolymer scienceSuccinimide
The invention discloses metal rust-preventative oil containing methacrylic acid isobutyl ester. The metal rust-preventative oil containing the methacrylic acid isobutyl ester is characterized by comprising the following raw materials, by weight, 110 parts-120 parts of number 120 solvent oil, 1 part-2 parts of lanolin, 1 part-2 parts of the methacrylic acid isobutyl ester, 1.5 parts-2.8 parts of a silane coupling agent KH 570, 0.5 part-0.7 part of epoxidized soybean oil, 0.3 part-0.4 part of span 80, 0.5 part-0.7 part of antioxidant 1135, 0.3 part-0.5 part of octyl phenol polyoxyethylene ether, 0.1 part-0.2 part of naphthenic acid magnesium, 0.2 part-0.5 part of benzotriazole, 1.5 parts-1.7 parts of 2-aminoethyl-heptadecenyl-imidazoline, 0.5 part-1part of hydrogenation tallow amine, 2.1 parts-3.4 parts of polyisobutene acid glyceride, 0.4 part-0.5 part of polyisobutyl-succinimide, 0.3 part-0.8 part of alkyl glycoside, 6 parts-8 parts of composite film-forming materials, 0.3 part-0.5 part of modified nanometer vermiculite powder, and 10 parts-12 parts of propylene glycol. The metal rust-preventative oil containing the methacrylic acid isobutyl ester has good contact rust-preventative performance and a good gaseous phase rust-preventative effect. The metal rust-preventative oil containing the methacrylic acid isobutyl ester has a good gaseous phase rust-preventative effect and a contact rust-preventative effect to steel and brass.
Owner:ANHUI FANCHANG COUNTY WANNAN VALVE CASTING
Organic/inorganic hybridisation strong alkalinity anion exchange membrane and preparation method thereof
InactiveCN101314111ANo pollutionImprove mechanical propertiesSemi-permeable membranesGlycidyl methacrylateBenzoyl peroxide
The invention provides an organic-inorganic hybrid strong-basicity anion exchange membrane and a preparation method thereof, relating to the anion exchange membrane and the preparation method thereof. The anion exchange membrane and the preparation method solve the problems in the prior art for preparing the anion exchange membrane, such as environmental pollution, unsafe operation process and poor product performance. The organic-inorganic hybrid strong-basicity anion exchange membrane is prepared by polyvinylidene fluoride, polyether-ether-ketone, divinyl benzene, ethylstyrene, dimethyl phthalate, organic solvent, nanometer aluminium oxide particles, glyceryl methacrylate and benzoyl peroxide. The method comprises the following steps of: 1. weighing required compositions by weight percentage; 2. ultrasonically mixing the nanometer aluminium oxide particles with the organic solvent; 3. adding other compositions into the mixture to produce a casting solution; 4. preparing the membrane by the casting solution; and 5. immersing and rinsing the membrane, putting the membrane in an HCL solvent for immersing, and cleaning the membrane once more, thereby obtaining the organic-inorganic hybrid strong-basicity anion exchange membrane. The organic-inorganic hybrid strong-basicity anion exchange membrane and the preparation method thereof have the advantages of no environmental pollution, safe operation process and good product performance.
Owner:HARBIN INST OF TECH
Photosensitive resin based on vegetable oil and citric acid as well as preparation method and application thereof
ActiveCN111732679AHigh functionalityHigh biobased contentOrganic compound preparationCarboxylic acid esters preparationPolymer scienceVegetable oil
The invention discloses photosensitive resin based on vegetable oil and citric acid as well as a preparation method and application thereof. The preparation method comprises the following steps: reacting vegetable oil with maleic anhydride to generate maleic anhydride vegetable oil; then carrying out anhydride ring-opening modification on the generated maleic anhydride vegetable oil by utilizing citric acid to obtain vegetable oil-based polycarboxylic acid; modifying the generated vegetable oil-based polycarboxylic acid compound by using glyceryl methacrylate to obtain a vegetable oil-based polypropenyl ester prepolymer; and finally, adding a vinyl diluting monomer, and uniformly dispersing the components to obtain a final product. The photosensitive resin has excellent mechanical, thermaland coating properties after photocuring, and can be used for photocuring coatings, printing ink and the like. The method is simple in process and environmentally friendly, most of the raw materialscome from renewable resources, and therefore the method has great significance in promoting sustainable development of the light-cured material industry.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
High hardness damping rubber and preparation method thereof
The invention discloses high hardness damping rubber. The high hardness damping rubber comprises the following components in parts by weight: 100 parts of raw rubber, 7.8 to 12.2 parts of active protective system, 90.8 to 121.2 parts of reinforcing system and 3.7 to 5.7 parts of vulcanization system, wherein the reinforcing system comprises glyceryl methacrylate. The high-hardness shock damping rubber has the dual effects of plastification and hardness improvement by adding the glyceryl methacrylate in the formula, overcomes the high hardness processing and performance limit value of rubber products, has high hardness (Shore A hardness of 92 degrees), excellent rigidity and mechanical property, relatively good shock absorption effect and long service life; and the obtained rubber productscan be well applied to cushion rubber matched with rail transit gear assemblies. At the same time, the invention also discloses a preparation method of the high hardness damping rubber.
Owner:广州泰升工业技术有限公司
High-molecular polymer oil displacement surfactant for oil field and preparation method of high-molecular polymer oil displacement surfactant
ActiveCN111808594AImprove development efficiencyImprove performanceDrilling compositionMeth-Active agent
The invention discloses a high-molecular polymer oil displacement surfactant for an oil field and a preparation method of the high-molecular polymer oil displacement surfactant and belongs to the technical field of oil field development. The high-molecular polymer oil displacement surfactant is prepared from a DMAG quaternary polymer and an AS polymer; the DMAG quaternary polymer is composed of areaction monomer, an initiator and distilled water; the reaction monomer is composed of dimethyl maleate, maleic anhydride, 2-acrylamide-2-methylpropanesulfonic acid and dehydrated glyceryl methacrylate; the initiator is azodiisopropylimidazoline acid salt; the AS polymer is polymerized in distilled water by taking acrylamide and vinylbenzene sulfonic acid as reaction monomers, 2,2'-Azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride(AIBI) as an initiator and mercaptoethylamine sulfonate as a chain transfer agent. The prepared oil displacement surfactant and crude oil form emulsion, the viscosity of the crude oil can be effectively reduced, remaining oil in stratum gaps can be effectively exploited, and the exploitation requirement of an oil field for thick oil and pore remaining oil is met.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Dicyclopentadiene type ethylene rhodanate resin and preparation thereof
InactiveCN101412811AExcellent dielectric propertiesLower melting temperatureGlycidyl methacrylateAdhesive
The invention discloses a glyceryl methacrylate grafting bimaleimide modifying dicyclopentandiene bisphenol cyanate ester resin and a method for preparing the same. According to the weight portion, 10 to 25 portions of glyceryl methacrylate / bimaleimide prepolymer are mixed with 0.01 to 0.1 portion of initiator; and after even mixing, the mixture is added to 75 to 90 portions of dicyclopentandiene bisphenol cyanate ester and fully mixed at a temperature of 80 DEG C to obtain the modified dicyclopentandiene bisphenol cyanate ester resin. On the basis of keeping the excellent dielectric property of the dicyclopentandiene bisphenol cyanate ester resin, the preparation method obviously improves the thermal resisting property and the mechanical property of the resin; moreover, the preparation method also has the advantages of simple process and wide applicability. The dicyclopentandiene bisphenol cyanate ester resin prepared by the method can be used as a high-performance adhesive, an advanced compound material resin matrix and the like.
Owner:SUZHOU UNIV
Rapid separation and detection method of vinyl triazole product
ActiveCN106501392AEfficient separationShort retention timeComponent separationGlycidyl methacrylateMicrosphere
The invention relates to a rapid separation and detection method of a vinyl triazole product. The method comprises that diazoresin modified porous poly(glyceryl methacrylate) microspheres are used as a filler of a high performance liquid chromatography column; the filler is prepared by the steps of taking uniform-particle-size porous poly(glyceryl methacrylate) microspheres prepared by a multi-step swelling method as a basis, then hydrolyzing the polymer microspheres to obtain hydroxyl, and carrying out optical crosslinking reaction with diazoresin having diazonium groups. Due to the hydrophobicity of the chromatographic column filler, the overall retention time on the vinyl triazole product having hydrophobicity is reduced, and the retention time of a by-product acetic acid is enhanced with use of a secondary amino group of the modified diazoresin, so that the vinyl triazole and the by-product are separated. The method is used for separation and detection of the vinyl triazole product, has the advantages of rapid separation and detection, simple operation and good reproducibility, provides an effective separation means for triazole vinyl, and has relatively high practical value.
Owner:QINGDAO UNIV
Sodium hyaluronate contained flexible hydrophilic contact lens and method for producing the same
ActiveCN101482625BIncrease moisture contentChange wetnessOptical articlesOptical partsPolymer sciencePyrrolidinones
Owner:GUANGZHOU BAOSHINING OPTICAL PROD
Dicyclopentadiene type ethylene rhodanate resin and preparation thereof
InactiveCN101412811BExcellent dielectric propertiesLower melting temperatureGlycidyl methacrylatePolymer science
The invention discloses a glyceryl methacrylate grafting bimaleimide modifying dicyclopentandiene bisphenol cyanate ester resin and a method for preparing the same. According to the weight portion, 10 to 25 portions of glyceryl methacrylate / bimaleimide prepolymer are mixed with 0.01 to 0.1 portion of initiator; and after even mixing, the mixture is added to 75 to 90 portions of dicyclopentandienebisphenol cyanate ester and fully mixed at a temperature of 80 DEG C to obtain the modified dicyclopentandiene bisphenol cyanate ester resin. On the basis of keeping the excellent dielectric propertyof the dicyclopentandiene bisphenol cyanate ester resin, the preparation method obviously improves the thermal resisting property and the mechanical property of the resin; moreover, the preparation method also has the advantages of simple process and wide applicability. The dicyclopentandiene bisphenol cyanate ester resin prepared by the method can be used as a high-performance adhesive, an advanced compound material resin matrix and the like.
Owner:SUZHOU UNIV
Metal bonding glue
InactiveCN107987739AWide variety of sourcesLow priceNon-macromolecular adhesive additivesOrganic non-macromolecular adhesiveEpoxyBenzoyl peroxide
The invention discloses metal bonding glue, which is prepared from the following components in parts by weight: 60 parts of benzoyl peroxide, 20 parts of perchloro-ethylene resin, 16 parts of ethyl acetate, 14 parts of hydroquinone, 6 parts of benzoyl peroxide, 15 parts of glyceryl methacrylate gel, 16 parts of polyisocyanate, 30 parts of epoxy resin, 7 parts of methyl methacrylate and 6 parts ofbenzoyl peroxide. According to the metal bonding glue provided by the invention, sources of raw materials are wide; the price is low; the glue is environmentally friendly; pollutants are a few, and the metal bonding glue has a quite good bonding effect, is quickly dried and has stable quality.
Owner:钱培虎
Novel printing and dyeing adhesive synthesis method
The invention relates to a novel printing and dyeing adhesive synthesis method. The method specifically comprises: sequentially adding reaction bottom materials to a three-neck round-bottom flask, andperforming heating to a temperature of 83 DEG C to dissolve the bottom materials; adding an initiator, dropwise adding a pre-emulsified material by using a constant-pressure dropping funnel, and controlling the dropwise adding time to be 1h; after the pre-emulsified material is dropwise added for 15 min, dropwise adding an initiator through the constant-pressure dropping funnel, wherein droppingcannot be completed earlier than that of the pre-emulsified material; and after dropping, keeping the temperature at 83 DEG C for 1 hour, finally performing cooling to 45 DEG C, filtering and discharging. The bottom materials comprise: K-12, AEO-9 and water. The pre-emulsified material is prepared from K-12, AEO-9, water, butyl acrylate, tert-butyl acrylate, methyl ester, acrylonitrile, glyceryl methacrylate, acrylic acid and isobutyl acrylate. The initiator comprises APS and water. The novel printing and dyeing adhesive synthesis method have the advantages of the simple process flow and relatively mild reaction conditions. The synthesized adhesive is good in uniformity and strong in stability. The synthesized adhesive is more environment-friendly, efficient and simple in post-treatment.
Owner:青岛双利材料科技有限公司
Photosensitive material paint
Owner:湖北柏合药业有限公司
Organic/inorganic hybridisation strong alkalinity anion exchange membrane and preparation method thereof
InactiveCN101314111BNo pollutionImprove mechanical propertiesSemi-permeable membranesGlycidyl methacrylateBenzoyl peroxide
Owner:HARBIN INST OF TECH
Straw-based panel forming glue
InactiveCN113881372ALow costLow equipment requirementsNon-macromolecular adhesive additivesMacromolecular adhesive additivesCellulosePolymer science
The invention discloses straw-based panel forming glue, and relates to the technical field of forming glue. The straw-based panel forming glue comprises the following components in parts by mass: 8-12 parts of polyvinyl alcohol, 15-25 parts of perchloro-ethylene resin, 12-18 parts of glyceryl methacrylate gel, 10-14 parts of phenolic resin, 5-9 parts of an aqueous sodium hydroxide solution, 1-5 parts of polyethylene polyamine, 2-4 parts of hydroxymethyl cellulose, 1-3 parts of a glue stabilizer, 7-9 parts of a flame retardant, 6-10 parts of a defoaming agent, 3-5 parts of an anti-aging agent and 70-90 parts of water. The glue is low in cost, low in equipment requirement, easy to produce and good in social popularization and application; the raw materials are environment-friendly, nontoxic and free of pungent smell; and the glue is convenient to store, not prone to solidification, good in waterproof performance, not prone to combustion due to the fact that the flame retardant is added, and safe and reliable.
Owner:阜阳市宏桥秸秆科技有限公司
A special material composition for automobile rear wing with low metal adhesion
The invention relates to a special material composition with low metal cohesiveness for automobile tail fins. The material composition comprises the following components in parts by weight: 89-98 parts of acrylonitrile butadiene styrene (ABS) matrix with high melt strength, 1-3 parts of a fluorine-containing polymer and 2-8 parts of calcium carbonate, wherein the ABS matrix with high melt strength is a mixture of an acrylonitrile-butadiene-styrene copolymer, a styrene-maleic anhydride copolymer and an acrylonitrile-styrene-glyceryl methacrylate copolymer, and the calcium carbonate is calcite nanometer calcium carbonate of which the grain size is 20-200nm. The adhesive property of the material on metal is reduced by a special design of the formula, the problems of coke materials, black spots, surface scratches, long cleaning time and the like generated in the extruding and blow molding processes are greatly solved, and meanwhile, the material also has the characteristics of high melt strength, good dimensional stability, high heat resistance, good workability and the like.
Owner:SHANGHAI KUMHO SUNNY PLASTICS
Impermeable coating with heavy metal chelating function as well as composition and application thereof
The invention belongs to the technical field of impermeable coatings, and discloses an impermeable coating with a heavy metal chelating function as well as a composition and application thereof. The preparation method comprises the following steps: carrying out a ring-opening reaction on active siloxane, a long-chain alkyl derivatives and a polyamine structure compound with an epoxy ring of poly(glyceryl methacrylate); and introducing a polyether modified siloxane chain Rn, a long-chain alkyl Rf and a polyamine structure Rm into a polymer chain, wherein the molar ratio of a polyepoxy main chain to the polyether modified siloxane chain Rn to the long-chain alkyl Rf to the polyamine chain Rm is (5-50): (1-10): (1-10): (1-10). The impermeable coating has a plurality of heavy metal binding sites and integrates multiple functions such as a heavy metal chelating function, a bonding function, a hydrophobic function and a film forming function. Micro-nano particles in the coating composition are wound and chemically bonded with a polymer film forming matter to form a stable hydrophobic impermeable polymer film, so that the use amount is small, the cost is low, and the heavy metal stabilizing effect is efficient and lasting.
Owner:CHONGQING UNIV +1
Preparation of Fluorescent Nanoparticles and Their Application in Cell Surface Sugar Detection
ActiveCN111040056BRealize detectionGood optical performanceFluorescence/phosphorescenceLuminescent compositionsFluoProbesGlycerol
The invention discloses a preparation method of glyceryl methacrylate hydrophilic brush-modified fluorescent nanoparticles and its application in cell surface sugar detection, including the synthesis of glycerol methacrylate by a reversible addition fragment chain transfer polymerization method Hydrophilic brush, and then through reversible addition fragment chain transfer precipitation polymerization method to synthesize fluorescent nanoparticles with hydrophilic polymeric brush on the surface and graft the sugar recognition element-phenylboronic acid on its surface to make cell surface sugar. Fluorescent probe; the highly hydrophilic polymer brush on the surface of the fluorescent nanoparticle has the ability to resist proteins, and the sugar recognition element-phenylboronic acid is grafted on its surface to make it have a fluorescent response to the sugar with a cis-diol structure, It has good selectivity and specificity, and can realize the specific detection of sugar in complex biological samples. The preparation process of the fluorescent nano-particles is simple and easy, and is easy to produce on a large scale.
Owner:NANJING TECH UNIV
Anti-vibration material for loudspeaker box
The invention discloses an anti-vibration material for a sound box. The anti-vibration material includes: 5,5'-bis(9-hexylcarbazole-3-)-2,2'-bipyridine, Ni-Co / EG , polyglycidyl methacrylate-ethylene glycol dimethacrylate, corn silk polyphenols, benzoic acid, polyethylene terephthalate and acrylonitrile-butadiene-styrene, the components of which The weight content is: 5,5'-bis(9-hexylcarbazole-3-)-2,2'-bipyridine 3~10 parts, Ni-Co / EG 2~5 parts, polyglycidyl methacrylate- 30~40 parts of ethylene glycol dimethacrylate, 5~14 parts of corn silk polyphenol, 4~13 parts of benzoic acid, 22~39 parts of polyethylene terephthalate and acrylonitrile-butadiene-styrene share. Through the above method, the present invention has good anti-vibration performance, and can avoid the influence of the vibration of the sound box.
Owner:贾红林
Polyethylene pipe for trenchless engineering
The invention provides a polyethylene pipe for trenchless engineering. The polyethylene pipe is prepared from the following raw materials in parts by weight: 100 parts of high-density polyethylene, 3-5 parts of mica, 5-10 parts of a functional modifier, 0.5-1 part of a silane coupling agent, 3-5 parts of color master batch and 3-5 parts of antioxidant master batch. The functional modifier is polyacrylamide activated and modified by glyceryl methacrylate and polyvinylidene fluoride. The polyethylene pipe for trenchless engineering provided by the invention has the beneficial effects that the inner wall of the pipe is modified by polyacrylamide, so that the frictional resistance of water in the pipe is effectively reduced, and the fluid conveying capacity is improved; polyvinylidene fluoride is utilized, so that the wear resistance of the surface of the pipe is improved, and the pipe cannot be greatly damaged in the pipe penetrating process; meanwhile, a small amount of mica is added, so that the strength of the pipe is improved, and the construction effect and the safety quality before and after repair are ensured on the premise that the overall flexibility of the pipe is not influenced.
Owner:福建亚通新材料科技股份有限公司
A kind of high hardness damping rubber and preparation method thereof
The invention discloses a high-hardness shock-absorbing rubber, which comprises the following ingredients in parts by weight: 100 parts of raw rubber, 7.8-12.2 parts of an active protection system, 90.8-121.2 parts of a reinforcing system, and 3.7-5.7 parts of a vulcanization system. The reinforcing system includes glyceryl methacrylate. The high-hardness shock-absorbing rubber of the present invention, by adding glyceryl methacrylate in the formula, has the dual effects of plasticization and hardness improvement, overcomes the processing and performance limits of rubber products for high hardness, and makes the rubber have High hardness (hardness 92°Shore A), excellent rigidity, mechanical properties, good shock absorption effect and long service life; the obtained rubber products can be well applied to buffer rubber for rail transit gear transmissions. At the same time, the invention also discloses a preparation method of the high-hardness shock-absorbing rubber.
Owner:广州泰升工业技术有限公司
A modified magnetic nano silica and its application in oil-water separation
ActiveCN107141429BStable formationEasy to separateFatty/oily/floating substances removal devicesWater/sewage treatment by magnetic/electric fieldsParaffin waxIce water
The invention discloses modified magnetic nano-silica and application thereof in oil-water separation. The modified magnetic nano-silica is prepared by the following steps: reacting magnetic nano-silica with an amino silane coupling agent, so as to obtain aminated magnetic nano-silica; dispersing aminated magnetic nano-silica into paraffin, and stirring, so as to obtain aminated magnetic nano-silica paraffin sphere; adding an acid capture agent, dropwise adding bromo-alkyl acyl bromide or bromo-alkyl acyl chloride under an ice-water bath condition, and reacting, so as to obtain a magnetic nano-silica initiator; mixing the magnetic nano-silica initiator with monomers, cuprous bromide, ligand and a solvent, carrying out deoxygenization, and reacting, so as to obtain polymer partially-modified magnetic nano-silica; slowly dropwise adding polymer partially-modified magnetic nano-silica into a poly(glyceryl methacrylate) solution, and reacting, so as to obtain polymer-modified magnetic nano-silica; and finally, dropwise adding polymer-modified magnetic nano-silica into a polyethyleneimine solution, and stirring to react, so as to obtain modified magnetic nano-silica. A modified magnetic nano-silica particle has very good stability, emulsified oil separation performance and recoverability.
Owner:山东凤鸣桓宇环保有限公司
Preparation method and application of dendrimer macromolecule-modified polymer with reversed phase/strong anion exchange mixed mode
ActiveCN109851801AUniform particle sizeEasy to makeIon-exchange process apparatusCation exchanger materialsCross-linkEthylenediamine
The invention provides a preparation method and application of a dendrimer macromolecule-modified adsorbent with a reversed phase / strong anion exchange mixed mode. The preparation method specificallycomprises the following steps: dissolving a cross-linking agent, a functional monomer and an initiator in a pore-foaming agent, introducing nitrogen to remove oxygen to prepare a solution A, dispersing nano-SiO2 into a triton X-100 water solution to obtain a solution B, mixing the solution A with the solution B, carrying out dispersing by a pulp refiner, carrying out polymerizing at a temperatureof 60 DEG C, carrying out an epoxy-amine ring opening reaction on the obtained polymer with a surface wrapped by SiO2 with ethylenediamine at a temperature of 80 DEG C to obtain a polymer with amino,soaking the polymer by using hydrofluoric acid to remove the SiO2 to obtain G0-poly(glyceryl methacrylate) (G0-PGMA), then carrying out a two-step reaction to modify the surface of the G0-PGMA with dendrimer polyamide-amine (PAMAM), and finally carrying out a reaction with a substance with epoxy to obtain the dendrimer macromolecule-modified adsorbent with the reversed phase / strong anion exchangemixed mode.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
A kind of rapid separation detection method of vinyltriazole product
ActiveCN106501392BEfficient separationShort retention timeComponent separationGlycidyl methacrylateMicrosphere
The invention relates to a rapid separation and detection method of a vinyl triazole product. The method comprises that diazoresin modified porous poly(glyceryl methacrylate) microspheres are used as a filler of a high performance liquid chromatography column; the filler is prepared by the steps of taking uniform-particle-size porous poly(glyceryl methacrylate) microspheres prepared by a multi-step swelling method as a basis, then hydrolyzing the polymer microspheres to obtain hydroxyl, and carrying out optical crosslinking reaction with diazoresin having diazonium groups. Due to the hydrophobicity of the chromatographic column filler, the overall retention time on the vinyl triazole product having hydrophobicity is reduced, and the retention time of a by-product acetic acid is enhanced with use of a secondary amino group of the modified diazoresin, so that the vinyl triazole and the by-product are separated. The method is used for separation and detection of the vinyl triazole product, has the advantages of rapid separation and detection, simple operation and good reproducibility, provides an effective separation means for triazole vinyl, and has relatively high practical value.
Owner:QINGDAO UNIV
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