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39 results about "Perbenzoic acid" patented technology
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Peroxybenzoic acid is an organic compound with the formula C6H5CO3H. It is the simplest aryl peroxy acid. It may be synthesized from benzoic acid and hydrogen peroxide, or by the treatment of benzoyl peroxide with sodium methoxide, followed by acidification.
Method and device for measuring free calcium oxide in cement or coal ash by microwave heating
InactiveCN101294942AFast heatingThere is no heating lag problemChemical analysis using titrationPreparing sample for investigationBenzoic acidHeating power
The invention discloses a method and device for measuring free calcium oxide in cement or fly ash by microwave heating; the method comprises the following steps: the cement or the fly ash and a free calcium oxide dissolving-out agent are placed in a ground conical flask; after the refluxing heating is carried out in a microwave oven, the free calcium oxide is dissolved out, and the content of the free calcium oxide in the sample is finally determined by dipping benzoic acid standard solution; the device comprises that: a heating power knob and a heating time knob are connected with the microwave oven, the internal cavity of the microwave oven is provided with the conical flask, a condensing tube is inserted into the upper end of the conical flask, the upper end of the condensing tube is communicated with a circulating cooling water tank, the lower end thereof is communicated with a circulating pump, and the internal cavity of the conical flask is provided with the cement or the fly ash sample and free calcium oxide dissolving-out medium; by adopting the microwave oven as a heating source, the heating speed is fast, the heating is started from the inner part of the solution with convenient operation, the dissolving-out speed of the free calcium oxide is obviously improved, the dissolving-out times are reduced, the measuring speed is improved, the microwave heating has high heat efficiency and can save energy and the device has long service life.
Owner:榆林恒源利尔新型建材科技有限公司
Fluorocarbon-modified super-hydrophobic material and preparation method thereof
InactiveCN102382366ASuper hydrophobic effect is remarkableSimple processing methodOther chemical processesBenzoic acidCarbon monofluoride
The invention discloses a fluorocarbon-modified super-hydrophobic material, which is prepared from silicon rubber, a vulcanizing agent, a fluorocarbon material, polypropylene and an aid serving as raw materials, wherein the static contact angles of the raw materials are respectively greater than 150 degrees, and the drift angles are respectively smaller than 10 degrees; the vulcanizing agent is one or more of TMTD (Tetramethylthiuram Disulfide), PDM (N,N'-m-Phenylenedimaleimide), t-butyl perbenzoate and tertiary capryl peroxyester; the fluorocarbon material is prepared by fluorating a carbon material; the carbon material is one or more of carbon black, active carbon, coke, a carbon nanotube and graphene; and the aid is one or more of stearic acid, magnesium stearate and zinc stearate. A preparation method of the fluorocarbon-modified super-hydrophobic material comprises the following steps of: (1) smelting a premix compound; (2) fluorating a carbon material; (3) extruding and pelletizing; (4), performing hot pressing and cold pressing; and (5) grinding and removing scraps. The super-hydrophobic material has a remarkable super-hydrophobic effect, a simple processing method and a good application prospect. Moreover, the inside and the surface of a product substrate are provided with the same component, so that a needed super-hydrophobic surface can be formed by grinding once again when the surface is damaged.
Owner:WENGFU (GRP) CO LTD +1
Method of synthesizing 2alpha,3alpha-epoxy-16alpha-bromo-5alpha-androsterone-17-one
The invention discloses a making method of 2 alpha, 3 alpha-epoxy-16 alpha-bromine-5 alpha-androstane-17-ketone as intermediate of steroidal muscular relaxation drug, which comprises the following steps: dissolving epiandrosterone in the benzene; adding catalyst; stirring; heating; refluxing 8-12h; preparing 5 alpha-androst-2-olefin-17-ketone; reacting the 5 alpha-androst-2-olefin-17-ketone and copper bromide in the carbinol to produce 16 alpha-bromine-5 alpha-androst-2-olefin-17-ketone; reacting the 16 alpha-bromine-5 alpha-androst-2-olefin-17-ketone and m-perbenzoic acid in the composite solvent of water and dichloromethane; producing the product through eliminating, bromizing and epoxidising.
Owner:WUHAN UNIV
Method for preparing UiO-66 based on benzoic acid regulation and chloroform activation and adsorption application
InactiveCN109589934AImprove adsorption performanceGood stabilityOther chemical processesWater contaminantsPollutantChloroform
The invention belongs to the field of environmental materials, and discloses a method for preparing UiO-66 based on benzoic acid regulation and chloroform activation and adsorption application thereof. UiO-66 (UiO-66-BA) having a perfect octahedral structure is successfully synthesized by using benzoic acid as regulator and chloroform as an activator, and is proved by using X-ray diffraction (XRD)and Fourier transform infrared spectrum (FTIR) and the like. An adsorption Congo Red dye (CR) experiment proves that the UiO-66-BA material added with benzoic acid and chloroform has high-efficient adsorption performance, has the maximum adsorption capacity of 1371mg / g, which is 7 times that of an unmodified UiO-66 on CR adsorption under the same condition. The method provides important standardto MOF finely synthesized nano-structural materials, the crystal appearance of a material can be regulated, the adsorption performance of the material can be improved, and organic pollutants can be better degraded.
Owner:CHANGZHOU UNIV
Flame-retardant rubber
The invention relates to a flame-retardant rubber preparation method, wherein the flame-retardant rubber is prepared by mixing the following components by mass fraction: 100 parts of natural rubber, 1.2-1.5 parts of a vulcanizing agent, 0.8-1.0 part of an accelerator CZ, 0.2-0.4 part of an accelerator CZ TMTD, 3.5-4.5 parts of stearic acid, 4.5-5 parts of zinc oxide, 1-2 parts of an an-aging agent 4010, 1-3 parts of liquid paraffin, 30-40 parts of carbon black, 1-5 parts of a flame-retardant synergist, 35-40 parts of ammonium polyphosphate, 10-20 parts of pentaerythrotol, and 10-20 parts of melamine, wherein the flame-retardant synergist is metal organic framework graft functionalized graphene, wherein graphene is functionalized with Benzoic Acid so as to achieve double coordination compounding of the graphene and the metal organic framework. With the flame-retardant rubber of the present invention, the flame-retardant performance of the rubber matrix is significantly improved.
Owner:SHENYANG RUBBER PLANT NO 4 LIAONING PROV
Additive used in the combustible water/hydrocarbon fuel mixture
InactiveUS6379404B1Increase in ratio of waterReduce fuel consumptionLiquid carbonaceous fuelsReduction ratePolyethylene oxide
This invention provides an additive used in the water / oil mixture to form an emulsified water / oil mixture suitable as a fuel source. The additive comprises a nonionic surfactant selected from the group of chemicals consisting of 55-65% of phenyl ethyl phenyl polyethyleneoxide and at least one ionic surfactants selected from the group of chemicals consisting of 18-30% of metaldehyde, 3-5% of peroxybenzoic acid and 4-12% of 1,4-dihydroxybenzene by weight of said additive. The additive enables the emulsified water / oil mixture to accommodate allowable water ratios from about 15% up to about 50% to achieve a fuel reduction rate of about 15-30% as compared to a conventional fuel source comprise solely of the crude oils.
Owner:RU ZHANG ZHENG
Synthesis of zinc-benzoic-acid-modified single-wall carbon nano tube porous material and use thereof in gas storage
InactiveCN102151550ALarge specific surface areaOvercoming van der Waals interactionsOther chemical processesDispersed particle separationBenzoic acidHydrogen
The invention discloses the synthesis of a zinc-benzoic acid-modified single-wall carbon nano tube porous material and the use of the material in gas storage. In the invention, quasi one-dimensional single-wall carbon nano tubes (SWNT) covalently modified by benzoic acid are used as organic connectors, zinc ions are used as nodes, the quasi one-dimensional SWNTs are expanded into a multi-dimensional hybrid porous material based on zinc-ion-benzoic-acid-modified single-wall carbon nano tubes through the coordination of the carboxyl groups on the benzoic acid-modified single-wall carbon nano tubes and zinc ions, and thus, the interaction of the Van der Waals forces between the single-wall carbon nano tubes is overcome and the bunched SWNTs are separated. Compared with pure SWNTs, the specific area or gas adsorption capacity of the hybrid porous material is improved obviously, and the hybrid porous material can be used for collecting carbon dioxide which is a greenhouse gas and storing hydrogen at the same time. Furthermore, the material can be developed into a novel gas storage material.
Owner:HUAZHONG NORMAL UNIV
Polyester resin film plastic and method for preparing same
The invention relates to polyester resin film plastic and method for preparing same, wherein the plastic is the mixture of unsaturated polyester resin, polyphenylacetylene, polymethyl methacryate, thickening agent, gasket material and fiber glass, the thickening agent is prepared from peroxybenzoic acid resin, black paste and talcum powder through agitating.
Owner:TIANJIN CITY BAILI TIANDI ELECTRIC COMPLEMENT
Anti-aging butadiene rubber modified epoxy resin anti-corrosive coating and preparation method thereof
InactiveCN106366837AImprove wear resistanceImprove anti-aging propertiesAnti-corrosive paintsPolyurea/polyurethane coatingsAluminateEpoxy
An anti-aging butadiene rubber modified epoxy resin anti-corrosive coating is prepared from: epoxy resin E51, butadiene rubber, dichlorobenzene, peroxybenzoic acid, methyltrioxorhenium, sodium periodate, sodium dihydro-bis(2-methoxyethoxy)aluminate, 2,4-toluene diisocynate, butanediol, silicon sol, potassium hydroxide, a silicon acrylic emulsion, octaphenyl polyoxyethylene ether, benzimidazole, N,N-bis(2-hydroxypropyl)aniline, and chloroform. The anti-corrosive coating has strong salt water resistance and good anti-corrosion property and is toxic-free and environment-friendly.
Owner:马鞍山采石矶涂料有限公司
Modified asphalt coating material, method for preparing modified asphalt coating material and asphalt waterproof coiled material
ActiveCN114085647AAvoid phase separationGood compatibilityNon-macromolecular adhesive additivesFilm/foil adhesivesBituminous waterproofingTributyl citrate
The invention relates to the field of building waterproofing, and particularly discloses a modified asphalt coating material, a method for preparing the modified asphalt coating material and an asphalt waterproof coiled material. The modified asphalt coating material comprises the following raw materials by weight: 100 parts of matrix asphalt, 0.5 to 3 parts of an asphalt modifier, 40 to 50 parts of asphalt softening oil, 5 to 10 parts of SBS (styrene butadiene styrene); 5 to 10 parts of SBR (Styrene Butadiene Rubber); 40 to 60 parts of rubber powder, and 40 to 60 parts of a powder material. The asphalt modifier is selected from one or more of trioctyl phosphate, triphenyl phosphate, tributyl phosphate, tert-butyl perbenzoate and acetyl tributyl citrate. According to the modified asphalt coating material provided by the invention, by adding the asphalt modifier, the compatibility among the components in the coating material can be effectively improved, so that the durability and low-temperature flexibility of the prepared asphalt waterproof coiled material can be greatly improved, and the application requirements in the field of building waterproofing are met.
Owner:KESHUN WATERPROOF TECH CO LTD
Synthesis of 3-phenyl-2,3-epoxy sodium epihydrate
A process for preparing 3-phenyl-2,3-sodium epoxy propionate features that under freezing condition and existance of catalyst chosen from sodium carbonate and sodium acetate, the cinnamaldehyde is oxidized by the oxidant chosen from ethaneperoxoic acid, peroxybenzoic acid and H2O2 at -15-40 deg.C for 5-15 hr to obtain product. Its advantages are low cost and low reaction temp.
Owner:上海香料研究所
Bath powder for treating fungal infection and preparation method thereof
PendingCN113116977AReduce the ratioLess irritatingSalicyclic acid active ingredientsPowder deliveryBenzoic acidChlorhexidine Acetate
The invention discloses bath powder for treating fungal infection, which is prepared from the following raw materials in parts by weight: 0.1 to 0.4 part of chlorhexidine acetate, 3 to 10 parts of benzoic acid, 10 to 20 parts of salicylic acid, 10 to 30 parts of boric acid, 2 to 8 parts of cortex phellodendri extract, 2 to 8 parts of cortex dictamni extract, 2 to 8 parts of radix sophorae flavescentis extract, 2 to 8 parts of golden larch bark extract, 0.001 to 0.004 part of essence and 30 to 60 parts of talcum powder. According to the bath powder for fungal infection, the content of acidic substances such as benzoic acid, salicylic acid and boric acid is controlled, so that the proportion of the acidic substances in the bath powder for fungal infection is reduced, the irritation to skin is reduced, and the bath powder for fungal infection cannot cause secondary damage to the skin; through the combined action of acidic substances such as benzoic acid, salicylic acid and boric acid and traditional Chinese medicines such as cortex phellodendri, cortex dictamni, radix sophorae flavescentis and golden larch bark, the anti-fungal effect is enhanced, and through cooperation of chlorhexidine acetate and a traditional Chinese medicine extract, the antibacterial effect on the skin, especially the inhibition effect on fungal infection, is improved.
Owner:郑州维谊生物科技有限公司
Elevator cable
InactiveCN105273283ALow costWill not interfere with each otherInsulated cablesInsulated conductorsChlorinated polyvinyl chlorideAntioxidant
The invention provides an elevator cable and belongs to the technical field of cables. The elevator cable solves the problem that an existing cable is poor in anti-interference capacity. The elevator cable comprises a sheath and an optical fiber component. The optical fiber component is sleeved with the sheath. A first shielding layer is arranged between the optical fiber component and the sheath. The optical fiber component comprises a plurality of main lines and a plurality of auxiliary lines. The main lines and the auxiliary lines are evenly distributed on the inner wall of the first shielding layer in a surrounding mode. The outer surface of each auxiliary line is sleeved with a second shielding layer. The sheath is prepared from, by weight, 50-60 parts of polyethylene, 20-30 parts of chlorinated polyvinyl chloride resin, 13-20 parts of chlorosulfonated polyethylene, 20-30 parts of modified polyphenyl epoxide resin, 15-20 parts of silica flour, 2-4 parts of aluminum hydroxide, 1.5-3 parts of magnesium hydroxide, 0.8-1.0 part of t-butyl perbenzoate, 3-4 parts of an anti-aging agent, 0.2-0.5 part of an antioxidant, 1-2.5 parts of a crosslinking agent and 1-2 parts of white carbon black. The elevator cable has the advantages of being convenient to install and high in anti-interference capacity.
Owner:ZHEJIANG SHIP ELECTRONICS TECH
2,3,4,5-tetramethoxyl toluene synthesis method
The invention relates to a method for synthesizing 2, 3, 4, 5-four metonym toluene, which comprises the following steps: using 3, 4, 5-three metonym toluene as starting raw material, obtaining the intermediate 2, 3, 4-three metonym-6-methxyl benzaldehyde after 2-bit formylated, obtaining 2, 3, 4-three metonym-6-methxyl benzene after oxidizing and obtaining 2, 3, 4, 5-four metonym toluene after methylamine. The methylamine reagent is cheesed form methyl iodide, methyl sulfate, methyl carbonate, and azimethane; the base is cheesed form caustic soda, caustic potash, potash and sodium hydride; the reagent is cheesed form alcohol, tetrahydropyran, acetone and propylidene chloride; the oxidant is cheesed form hydrogen diode solution and perbenzoic acid and so on. The formylation is N, N-dimethyl formamide solution with the drop phosphorus trichloride temperature below 50 deg. and the reacting temperature 60 deg.-100 deg.
Owner:JIANGSU YABANG PHARMA RES & DEV
Method for preparing single-layer graphene
The invention provides a method for preparing single-layer graphene. The method includes the steps that mineral acid, benzene sulfonic acid sodium salt and peroxybenzoic acid are added to graphite, a reaction is conducted at the reaction temperature of 20-30 DEG C, then KMnO4 is added, after the mixture is stirred to be uniform, a reaction is conducted at the reaction temperature of 60-65 DEG C, and a claybank solution is obtained; water is added to the claybank solution to conduct dilution, then H2O2 is added till the solution becomes luminous yellow, then filtering is conducted, ethyl alcohol is added to filtrate, the mixture is stirred to be uniform, after filtering is conducted, a filter cake is subjected to acid pickling and then subjected to water washing till the filter cake is neutral, and graphite oxide is obtained; ethidene diamine is added to the graphite oxide, and after a reaction is conducted in an ultrasonic reactor, the single-layer graphene is obtained. The graphene obtained through the method is small in number of layers and not prone to agglomeration, and the problems that the single-layer graphene is stacked again under a natural state, and the surface of the single-layer graphene absorbs oxygen are solved. The one-step stripping and reducing method for preparing the graphene is environmentally friendly and simple, time cost and production cost are saved, large-scale production and application can be achieved, and the method has a wide industrial application prospect.
Owner:XI AN JIAOTONG UNIV
Self-heating silicone rubber composite material and application thereof in insulators
The invention provides a self-heating silicone rubber composite material and application thereof in insulators, belonging to the field of rubber production. The self-heating silicone rubber compositematerial comprises the following components in parts by weight: 110 to 150 parts of silicone rubber, 15 to 25 parts of siloxane, 5 to 9 parts of white carbon black, 0.5 to 1.5 parts of sulfur, 1.5 to3 parts of a vulcanizing agent, 4 to 8 parts of a reinforcing agent and 65 to 71 parts of carbon black, wherein the siloxane is at least one selected from vinyltrimethoxysilane, polydimethylsiloxane and methyltriacetoxysilane; the white carbon black is at least one selected from fumed silica or precipitated white carbon black; and the vulcanizing agent is one or a mixture of more selected from benzoyl peroxide, 2,4-dichlorobenzoyl peroxide and tert-butyl peroxybenzoate. The self-heating silicone rubber composite material prepared by using a processing technology in the invention has good tearstrength, tensile strength and flame retardant property indexes, is more excellent in use, and thus has higher use value than conventional silicone rubber materials in application to insulators.
Owner:江苏英亚高分子材料科技有限公司
Preparation method of special epoxy resin paint for wind power blades resistant to salt spray
ActiveCN103666196BGood compatibilityImprove adhesionAnti-corrosive paintsEpoxy resin coatingsPolymer scienceMeth-
Owner:南通市通州区五接农业机电管理站有限公司
Novel fiberboard with heat storage function
ActiveCN113858373AImprove heat transfer performanceImprove the wrapping effectHeat-exchange elementsFlat articlesBenzoic acidCellulose
The invention discloses a novel fiberboard with a heat storage function, and relates to the technical field of fiberboard processing. A method comprises the following steps that (1), sodium alginate and chitosan are adopted as wall materials, pretreated flaky aluminum oxide particles obtained after stearic acid surface treatment are introduced, and an outer wall material solution is obtained; (2), the pretreated zirconium oxide nanoparticles modified by benzoic acid are introduced into a polyacrylate emulsion, and a polymerization reaction is carried out with a phase change material, an initiator and an aqueous solution containing a dispersant and a surfactant to form a suspension; (3), the outer wall material solution is dropwise added into the suspension, and a glutaraldehyde solution is added to obtain a capsule phase change material; and (4), the plant fiber, the capsule phase change material, solid paraffin, urea-formaldehyde resin adhesive, carboxymethyl cellulose and methyl tetrahydrophthalic anhydride are evenly mixed and then laid, and the fiberboard with the heat storage function is obtained. The fiberboard is excellent in performance, and the heat release time is prolonged by 85% or above compared with a common fiberboard.
Owner:阜阳大可新材料股份有限公司
Process for Preparing Fluorobenzene Derivatives and Benzoic Acid Hypofluorite Derivatives
ActiveUS20210061737A1Minimize dilutionSimplify and reduce numberCarboxylic acid nitrile preparationOrganic compound preparationBenzoic acidHigh concentration
The invention relates to a use of a fluorination gas, and the elemental fluorine (F2) is preferably present in a high concentration, for example, in a concentration of elemental fluorine (F2), especially of equal to much higher than 15% or even 20% by volume, and to a process for the manufacture of a fluorinated benzene derivative starting from benzoic acid derivative by direct fluorination employing a fluorination gas, wherein the elemental fluorine (F2) is preferably present in a high concentration, and subsequent decarboxylation of the benzoic acid hypofluorite derivative obtained by direct fluorination. The process of the invention is also directed to the manufacture of a benzoic acid hypofluorite derivative by direct fluorination of benzoic acid derivative. Especially the invention is of interest in the preparation of fluorinated benzene derivative, final products and as well intermediates, for usage in agro-, pharma-, electronics-, catalyst, solvent and other functional chemical applications.
Owner:FUJIAN YONGJING TECH CO LTD
A kind of metal leaching agent and gold leaching method based on ionic liquid
ActiveCN113430372BMeet the requirements of building an environment-friendly societyMeet the requirements of an environment-friendly societyProcess efficiency improvementBenzoic acidPerbenzoic acid
Owner:ZHEJIANG UNIV OF TECH
Preparation method of MOF/MXene/PPy-CelF porous nano-material, and product and application of MOF/MXene/PPy-CelF porous nano-material
ActiveCN114606554AGood deformabilityEasy transferHybrid capacitor electrodesElectrophoretic coatingsAcid etchingBenzoic acid
Owner:苏州妙海纳米科技有限公司
3-peroxybenzoic acid-1-methylimidazolium chlorine salt as well as preparation and application thereof
ActiveCN113292498AMeet the requirements of building an environment-friendly societyMeet the requirements of an environment-friendly societyOrganic chemistryProcess efficiency improvementBenzoic acidIonic liquid
The invention discloses 3-peroxybenzoic acid-1-methylimidazolium chlorine salt as well as preparation and application thereof. The 3-peroxybenzoic acid-1-methylimidazolium chloride is an ionic liquid, and the structure of the 3-peroxybenzoic acid-1-methylimidazolium chloride is shown in the specification. The invention provides the application of the 3-peroxybenzoic acid-1-methylimidazolium chloride as a metal leaching agent, the defect that a toxic precious metal leaching agent is used in the traditional metallurgical industry is overcome, and the 3-peroxybenzoic acid-1-methylimidazolium chloride has the advantages of being efficient, green, environmentally friendly and sustainable.
Owner:ZHEJIANG UNIV OF TECH
2,3,4,5-tetramethoxyl toluene synthesis method
InactiveCN1800131BLow costSuitable for industrial productionEther preparationBenzaldehydeMethyl carbonate
Owner:JIANGSU YABANG PHARMA RES & DEV
Heat-resistant and anti-aging high polymer material and preparation method thereof
The invention discloses a heat-resistant and anti-aging high polymer material and a preparation method thereof, and belongs to the field of automotive high polymer materials. The high polymer material comprises the following raw materials: polyamide resin, mineral filler, fiber, a composite nucleation flowable agent, peroxybenzoic acid, Fischer-Tropsch wax and an antioxidant, the composite nucleation flowable agent is composed of linoleic acid, sodium benzoate, sodium carboxymethyl cellulose and talcum powder, the prepared high polymer material polyamide has high flowability, products can be prepared in a wide processing range, and the prepared products have high temperature resistance and aging resistance.
Owner:中科检测技术服务(重庆)有限公司
Polyester resin film plastic and method for preparing same
Owner:TIANJIN CITY BAILI TIANDI ELECTRIC COMPLEMENT
Preparation method and application of disinfection deodorant
ActiveCN111249879ANo side effectsReduce dosageBiocideDispersed particle separationBenzoic acidSodium phosphates
The invention relates to the field of livestock and poultry industry pollutant treatment. Based on malodorous gases and pathogenic microorganisms in livestock and poultry houses, the invention discloses a disinfection deodorant capable of simultaneously and efficiently removing malodorous gases and killing pathogenic microorganisms, wherein the main components of the disinfection deodorant consistof sodium percarbonate, calcium peroxide, sodium persulfate, peroxybenzoic acid, malic acid, hydroxypropyl methyl cellulose and sodium hexametaphosphate. The invention also provides a preparation method of the disinfection deodorant, wherein the disinfection deodorant prepared by the method has the advantages of uniform dispersion of all components, strong adhesion and good stability. According to the application of the disinfection deodorant, hydrogen peroxide, active oxygen (.O), hydroxyl free radicals (.OH) and sulfate free radicals (.SO4) can be rapidly generated, and can efficiently playdisinfection and deodorization roles, existing slow-release components can maintain the cleanness of the poultry house environment for a long time, and action products are clean and free of pollution. The disinfection deodorant has the advantages of simple use method and strong operability in the preparation process, and is suitable for large-batch and large-scale production.
Owner:湖南现代资源生物科技有限公司 +1
A rapid detection method for the stability and toxicity of heavy metals in fly ash from municipal solid waste incineration
ActiveCN107202865BImprove regulatory efficiencyRapid assessmentMaterial analysis by observing effect on chemical indicatorPreparing sample for investigationBenzoic acidEthylic acid
Owner:SHANGHAI UNIV
Bisphenol A SMC mold pressing resin composition and preparation method thereof
PendingCN112724608AReduced activityGood high temperature resistance and flame retardant effectFiberPolymer science
The invention belongs to the technical field of SMC mold pressing, and particularly relates to a bisphenol A type SMC mold pressing resin composition. The composition comprises a bisphenol A type polyester resin, a low-shrinkage additive, a curing agent, a demolding agent, a filler, fibers and a stripping agent, wherein the bisphenol A polyester resin is 18 to 23 parts by weight, the low-shrinkage additive comprises 5-8 parts of a low-shrinkage resin, the curing agent comprises 0.2 to 0.5 part of tert-butyl peroxybenzoate, the demolding agent is prepared from 0.5 to 1.5 parts of zinc stearate and 0.005 to 0.035 part of grease, the filler is 20-40 parts, the fibers are 25-55 parts, and the stripping agent comprises 0.1-0.3 part of magnesium oxide. According to the invention, the novel resin composition is formed by taking common hand lay-up bisphenol A resin as a matrix and adding other components, during SMC mould pressing, the novel resin composition is uniform in curing, smooth in demolding and regular in forming, and the product of the novel resin composition has the characteristics of strong acid and alkali corrosion resistance, high mechanical strength, high temperature resistance and flame retardance.
Owner:河北铭特环保设备科技有限公司
Flame-retardant PMMA (polymethyl methacrylate) resin material, composite material and preparation method thereof
The invention provides a flame-retardant PMMA (polymethyl methacrylate) resin material, a composite material and a preparation method thereof. The flame-retardant PMMA resin material comprises the following components in parts by mass: 100 parts of methyl methacrylate, 0.5-5 parts of a compound initiator, 0-50 parts of inorganic flame-retardant filler, 5-80 parts of a flame retardant and 2-5 parts of a release agent, the compound initiator is a combination of two or more than two of dibenzoyl peroxide, bis (4-tert-butylcyclohexyl) peroxydicarbonate, bis (lauroyl) peroxide, tert-butyl peroxy-2-ethylhexanoate and tert-butyl perbenzoate. According to the resin material, methyl methacrylate serves as a monomer, fibers are impregnated in an impregnation tank, monomer free radical polymerization is initiated in a mold under the action of a compound initiator, the monomer is low in viscosity and good in fluidity, equipment does not need to be transformed, pultrusion is completed directly through a thermosetting resin device, the existing thermoplastic pultrusion process is simplified, and operation is convenient; the composition of the initiator and the flame retardant is further improved, so that the mechanical property and the flame-retardant effect of the composite material are better.
Owner:北玻院(滕州)复合材料有限公司
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