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37results about How to "Achieve long-lasting antibacterial effect" patented technology
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Copper oxide-doped potassium-sodium niobate antibacterial piezoelectric ceramic implant as well as preparation and application of implant
InactiveCN107721420AImprove stabilityImprove mechanical propertiesBiocideFungicidesCopper oxideSodium niobate
The invention belongs to the technical field of antibacterial implant materials, and discloses a copper oxide-doped potassium-sodium niobate antibacterial piezoelectric ceramic implant as well as preparation and application of the implant. The method comprises the following steps: (1) adding a solvent, niobium pentoxide, sodium carbonate and potassium carbonate into a ball milling device for ballmilling, standing, drying, calcining, and grinding into powder, to obtain potassium-sodium niobate precursor powder; (2) adding a solvent, copper oxide and the potassium-sodium niobate precursor powder into the ball milling device for ball milling, standing, drying, and calcining, to obtain copper oxide-doped potassium-sodium niobate ceramic powder; (3) evenly mixing the copper oxide-doped potassium-sodium niobate ceramic powder with a binder, granulating, forming, discharging glue, performing dense sintering, to obtain a ceramic sheet; and (4) polarizing the ceramic sheet, to obtain the copper oxide-doped potassium-sodium niobate antibacterial piezoelectric ceramic implant. The method is simple, and the prepared implant has a good antibacterial effect and stability.
Owner:SOUTH CHINA UNIV OF TECH
Antibacterial PE water supply pipe
The invention discloses an antibacterial PE water supply pipe. The antibacterial PE water supply pipe is prepared from the following raw materials in parts by weight: 80-100 parts of a polyethylene raw material, 20-30 parts of a regenerated polyethylene material, 2-4 parts of an antioxidant, 12-24 parts of a compound antibacterial agent, 1-3 parts of a lubricant, 2-5 parts of a dispersing agent and 1-3 parts of an anti-impact modifier, wherein the compound antibacterial agent contains an inorganic antibacterial material and an organic antibacterial material in a mass ratio of (2-4) to 1, and the inorganic antibacterial material contains Muyu stone sphere powder, zeolite powder, zinc oxide and nano-silver. The antibacterial efficiency of the antibacterial PE water supply pipe reaches above 99%, and the antibacterial cycle is long.
Owner:ANHUI GUODENG PIPE IND TECH CO LTD
Long-acting antibacterial solid lubricating film layer for space environment and preparation method thereof
ActiveCN109504945AAntibacterial level does not decreaseIncreasing the thicknessVacuum evaporation coatingSputtering coatingSputteringSpace environment
The invention discloses a long-acting antibacterial solid lubricating film layer for space environment and a preparation method thereof. The solid lubricating film layer includes a substrate, an Ag diffusion layer and a coating; the coating includes a Cr seed layer and an Ag-containing amorphous carbon film layer sequentially deposited on the substrate; and the Ag diffusion layer is arranged in the substrate near to the Cr seed layer, and is formed by substrate materials and Ag atoms diffusing from the Cr seed layer into the substrate materials. According to the long-acting antibacterial solidlubricating film layer for space environment and the preparation method thereof, the Cr seed layer is firstly deposited on the substrate, then the magnetron co-sputtering of a graphite target and anAg target is carried out, and a gradient transition Ag functional layer is deposited by controlling the Ag sputtering current; finally, the heat treatment is performed to facilitate the Ag atoms in the coating diffusing into the substrate, so that the thickness of the Ag antibacterial functional layer is increased, the antibacterial grade of the obtained coating does not decrease after a long period of friction test, and the long-acting antibacterial effect is achieved, the coating is especially suitable for long-acting antibacterial lubricating parts of the space station, and has large practical application requirements and good application prospects.
Owner:SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
Antibacterial PP melt-blown material, melt-blown filter element and preparation method of melt-blown filter element
InactiveCN111534004AAvoid breedingAchieve long-lasting antibacterial effectTreatment involving filtrationMembrane filtersPolymer sciencePolyhexamethylene guanidine
The invention discloses an antibacterial PP melt-blown material and a melt-blown filter element, and relates to the technical field of filter elements. The antibacterial PP melt-blown material is prepared from the following components in percentage by mass: 90 to 96 percent of PP resin; 1%-4% of an antibacterial agent; 2%-4% of a compatilizer and 0.2-2% of a dispersing agent; the antibacterial agent is polyhexamethylene guanidine; the antibacterial PP melt-blown filter element is prepared from the antibacterial PP melt-blown material. The antibacterial PP melt-blown material is prepared by adding the antibacterial agent polyhexamethylene guanidine, the antibacterial PP melt-blown filter element is prepared from the antibacterial PP melt-blown material, the long-acting antibacterial effectof the filter element is achieved, and the problems that an existing filter element is poor in stability and low in sterilization efficiency are solved.
Owner:CHANGHONG MEILING CO LTD
Coating material for paper product
ActiveCN106065544ALoose structureLarge specific surface areaDefoamers additionCoatings with pigmentsHalloysiteCoating deposition
The invention discloses a coating material for a paper product. Halloysite, palyorskite and kaolinite are used as fillers and according to porousness of the halloysite, palyorskite and kaolinite, plant essential oil enters pores of the halloysite, palyorskite and kaolinite so that plant essential oil can be slowly released. The wet halloysite, palyorskite and kaolinite have viscosity, plasticity and good suspension properties and can effectively prevent coating deposition and layering. Through modification of a soybean protein, hydrophily of the soybean protein is changed into hydrophobicity so that coating water resistance is improved. Through crosslinking of the soybean protein and glutaraldehyde and use of a chain extender for chain extension, a complex net structure is formed in the soybean protein and soybean protein cohesion and toughness are improved. Through mixing of the modified soybean protein and the modified polylactic acid, paper product barrier properties are improved.
Owner:上海同惠油墨涂料有限公司
Preparation method of ceramic coating layer with long-lasting antibacterial function
The invention relates to the technical field of functional ceramics, and discloses a preparation method of a ceramic coating layer with a long-lasting antibacterial function. The preparation method comprises the following steps: (1) preparing a coating layer spray solution: preparing a visible light-responsible modified TiO2 catalysis material, and compounding the TiO2 catalysis material with a thickener, a dispersant, a leveling agent and an antifoaming agent to prepare the coating layer spray solution; and (2) preparing the antibacterial ceramic coating layer: spraying the coating layer spray solution prepared in step (1) on the surface of a low temperature glaze, and carrying out pottery firing on the low temperature glaze at 300-1000 DEG C to prepare the antibacterial ceramic coating layer. A simple spraying process before the firing of the low temperature glaze is carried out to meet industrialization requirements and realize easy large-scale batch production, and an existing ceramic production process is simply adjusted to realize the industrialization upgrading of the ceramic production.
Owner:SHENZHEN TIANDEYI ENVIRONMENT TECH
Method for preparing polyurethane-nano silver long-lasting antimicrobial film by modification method after ultraviolet-irradiation
ActiveCN107082905AThe reaction process is simpleAvoid difficult synthesisDimethylformamideLong chain
The invention relates to a method for preparing a polyurethane-nano silver long-lasting antimicrobial film by a modification method after ultraviolet-irradiation. The method comprises the steps: (1) conducting a mixed reaction of diisocyanate and polytetrahydrofuran; adding an acetone solution containing a cross-linking agent and a chain extender, adding dimethylol propionic acid and a catalyst to react, and obtaining PU; adding a dimethylformamide solution of silver nitrate to a polyurethane solution, stirring evenly to form a film, conducting heat treatment, and obtaining a polyurethane-nano silver film; (2) reacting 4,4'-dihydroxybenzophenone with long chain haloalkane, and obtaining 4,4'-double-long chain alkoxy benzophenone; reacting the 4,4'-double-long chain alkoxy benzophenone with hydrazine hydrate, and obtaining 4,4'-double-long chain alkoxy benzophenone hydrazone; conducting oxidizing reaction on the 4,4'-double-long chain alkoxy benzophenone hydrazone, and obtaining long chain alkyl diazomethane; (3 ) dissolving the long-chain alkyl diazomethane in solvent, spraying on the surface of the polyurethane-nano-silver film, after ultraviolet-irradiation, and obtaining the product. The invention can achieve long-term anti-microbial.
Owner:QILU UNIV OF TECH
Method for producing flame-retarding and antibacterial fibers and flame-retarding and antibacterial fibers obtained by same
InactiveCN107574661AAchieve long-lasting antibacterial effectFlame retardantVegetal fibresPolymer scienceCellulose fiber
The invention relates to a method for producing flame-retarding and antibacterial fibers and the flame-retarding and antibacterial fibers obtained by the same. The method comprises the following steps: a) providing fibers selected from cellulose fibers, unmodified vinylon fibers and modified vinylon fibers or a mixture of the cellulose fibers, the unmodified vinylon fibers and the modified vinylonfibers; b), immersing the fibers provided by step a) into a water solution of a tetrakis hydroxymethyl phosphorus compound to obtain immersed fibers; c) pre-dehydrating the immersed fibers obtained in step b) to obtain pre-dehydrated fibers; d) drying the pre-dehydrated fibers obtained by step c) to obtain dried fibers; e) carrying out ammonia fumigation on the dried fibers obtained by step d) toobtain ammonia fumigated fibers; f) carrying out oxidization on the ammonia fumigated fibers obtained by step e) to obtain the flame-retarding and antibacterial fibers, wherein in an ammonia fumigation process of step e), ammonia gas is applied in an insufficient manner relative to the tetrakis hydroxymethyl phosphorus compound applied in step b) so that one part of the tetrakis hydroxymethyl phosphorus compound in the fibers do not react with the ammonia gas.
Owner:宁夏全宇新材料有限公司 +2
Non-ironing triple-proof finishing method of ready-made garments
InactiveCN110424160AMoisture absorption and quick dryingDry and comfortableStain/soil resistant fibresBiochemical fibre treatmentSulfonateFoaming agent
The invention discloses a non-ironing triple-proof finishing method of ready-made garments, which comprises the steps of S1, preparing a non-ironing pre-finishing agent and a non-ironing post-finishing agent, and foaming the non-ironing post-finishing agent; S2, spraying the non-ironing pre-finishing agent evenly to the front; S3, pre-drying; S4, carrying out pressure ironing; S5, carrying out baking setting; S6, applying foam of the non-ironing post-finishing agent to the back; and S7, drying. The non-ironing pre-finishing agent is made with organic fluorine-modified acrylic resin, an anti-wrinkle non-ironing finishing agent, a fiber protectant, a triple-proof aid, a softener, a penetrant, a catalyst and polyacrylate powder; the non-ironing post-finishing agent is made with styrene-modified polymethyl acrylate, an anti-wrinkle non-ironing finishing agent, modified polyester fibers, polyamide fibers, a softener, a penetrant, a foaming agent, alkyl polyglucoside, and fatty acid methyl ester sulfonate. The non-ironing triple-proof finishing method herein has the advantages that non-ironing finishing can be provided for ready-made garments, and the ready-made garments can wick moisture and dry fast, can repel water and oil, can prevent pollution and can inhibit bacteria for long time.
Owner:北京金添仕制衣有限公司 +1
Preparation technology of hydrophilic stain-resisting textile fabric
InactiveCN109914099APromote absorptionLeak quicklyFibre typesTextile treatment machine arrangementsFiberPolyester
The invention discloses a preparation technology of a hydrophilic stain-resisting textile fabric. The hydrophilic stain-resisting textile fabric is formed by compositing two textile fabrics made frompolyester fiber materials. The technology comprises the steps that the polyester fiber textile fabrics are subjected to rubbing, cooking, grinding and a series of pretreatment, the whole fabric is soft and fluffy and easy to process, various auxiliaries can be absorbed in the follow-up steps, hydrophilic modification is performed on the fabric, hydrophilic groups are introduced into the polyesterfiber structure in a grafting copolymerization mode, and therefore the whole wet permeability is improved; then, stain-resisting modification is performed, silver ions are fixed to nodes of polyesterfiber, the long-acting antibacterial effect is achieved, finally, anti-static modification is performed, the prepared mixing solution is sprayed to the side face A of the polyester fiber textile fabric to form a single-molecule conductive film, static charges on the polyester fiber are rapidly leaked to achieve the antistatic effect, and according to the cooperation and promoting effect of the steps, the hydrophilic stain resistance is achieved sufficiently.
Owner:宁波博洋家纺集团有限公司
Antibacterial insole preparation method
InactiveCN108030195AOptimize the opening processPromote circulationInsolesFibre typesCelluloseActive component
The invention belongs to the field of daily necessities, and particularly relates to an antibacterial insole preparation method. According to the method, acetobacter xylinum and health care nutritioncondensates are corporately fermented to prepare gel substrate membranes, the acetobacter xylinum is an aerobic bacterium, the oxygen concentration and an oxygen transfer coefficient have high influence on growth of the bacterium in culture solution, oxygen is dissolved in the culture solution, the acetobacter xylinum absorbs oxygen under a liquid level to reproduce and grow to synthesize cellulose, active components in traditional Chinese medicines are fermented, so that the active components are sufficiently dissolved out, three-dimensional network structures of the generated gel substrate membranes are leavened and porous, the active components enter in membrane structures and are attached in the membranes, and the health care effect on soles can be slowly played. An antibacterial insole solves the problems that a current insole is poor in air permeability and odor-resistant effect, and antibacterial effects are not lasting in the using process.
Owner:李竑靓
Inflame-retardant antibacterial towel cloth for hotel bathrobe and preparation method thereof
InactiveCN107815863AFlame retardantReduce releaseBiochemical fibre treatmentHeat resistant fibresYarnAqueous solution
The invention relates to an inflame-retardant antibacterial towel cloth for hotel bathrobe and a preparation method thereof. The method comprises the steps of (a) spinning cotton fibers and non-modified vinylon or modified vinylon into cotton / vinylon mixed yarns which are taken as ground warps and ground wefts, and spinning cotton yarns which are taken as cloth warp yarns to obtain a towel cloth;(b) preparing a water solution of a tetrahydroxy methyl phosphonium compound; (c) soaking the towel cloth obtained in the step (a) into the water solution of the tetrahydroxy methyl phosphonium compound to obtain soaked cloth; (d) drying the soaked cloth obtained in the step (c) to obtain dried cloth; (e) carrying out ammonium fuming on the dried cloth obtained in the step (d) to obtain cloth subjected to ammonium fuming; and (f) oxidizing the cloth subjected to ammonium fuming obtained in the step (e), wherein in the ammonium fuming processing of the step (e), the added amount of ammonium gasis inefficient relative to the added amount of the tetrahydroxy methyl phosphonium compound in the step (c), so that one part of tetrahydroxy methyl phosphonium compound in the cloth is not reacted with ammonium gas.
Owner:XINXIANG PATRON SAINT SPECIAL FABRIC +2
Low-temperature quaternary ammonium salt disinfectant and preparation method thereof
PendingCN113261559ASimple production processOperational securityBiocideDisinfectantsAnti bacterialDisinfectant
The invention discloses a low-temperature quaternary ammonium salt disinfectant and a preparation method thereof, and belongs to the technical field of disinfection. The quaternary ammonium salt disinfectant comprises the following components in percentage by weight: 0.1-0.6% of quaternary ammonium salt, 1-5% of a curing agent, 0.1-0.5% of a synergist, 20-50% of an anti-freezing agent and the balance of water. The quaternary ammonium salt disinfectant can be obtained by sequentially adding the quaternary ammonium salt, the curing agent, the synergist and the anti-freezing agent into water and uniformly stirring. The quaternary ammonium salt disinfectant is not frozen under the condition of-23 DEG C, can keep an excellent sterilizing effect, is lasting in antibacterial effect, relatively low in corrosivity, good in stability and convenient to operate, does not need to be wiped and cleaned after acting on the surface of an object, has the advantages of safety, environment friendliness, high efficiency, no toxicity, no odor and the like, and has a wide application prospect.
Owner:山东消博士消毒科技股份有限公司
Natural antibiotic-replacing feed additive and preparation method thereof
InactiveCN113455585ADegradable fiber contentIncrease soluble nitrogen contentFood processingAnimal feeding stuffBiotechnologyNutritive values
The invention discloses a natural antibiotic-replacing feed additive and a preparation method thereof, and belongs to the technical field of feed processing. The natural antibiotic-replacing feed additive comprises inner core particles and a wrapping layer. The mixed bacteria and the compound enzyme are used for fermenting the wine vinasse, so that the soluble nitrogen content of the wine vinasse is increased, the quality of the wine vinasse is better, and the nutrition is more balanced; meanwhile, the ginger extract and the radix scutellariae extract are introduced, so that the obtained core particles have excellent antibacterial performance while having rich nutritional value; modified chitosan and sodium alginate are used as film-forming base materials, sodium tripolyphosphate is used as a cross-linking agent, so that the obtained natural antibiotic-replacing feed additive has slow-release performance, and chitosan is subjected to grafting modification of organic silicon, so that a siloxane chain layer is gathered on the surface of a slow-release film, the mechanical property of the film is improved, the slow release performance of the additive is further improved.
Owner:HUAIBEI JIAJI AGRI SCI & TECH CO LTD
Method for producing flame-retardant and antibacterial fibers and obtained flame-retardant antibacterial fibers
InactiveCN107604460AFlame retardantReduce releaseFlame-proof filament manufactureMonocomponent synthetic polymer artificial filamentFiberPolymer science
The invention relates to a method for producing flame-retardant and antibacterial fibers and the obtained flame-retardant antibacterial fibers. The method comprises the following steps: a) dissolvingpolyvinyl alcohol in water to obtain spinning dope; b) applying an aqueous solution of a tetrakis(hydroxymethyl)phosphonium compound; c) performing spinning with a mirabilite wet method, and performing solidification and stretching to obtain nascent fibers; d) drying the nascent fibers obtained in step c) to obtain flame-retardant precursor fibers; e) performing ammonia fumigating on the flame-retardant precursor fibers obtained in step d) to obtain ammonia fumigated fibers; f) oxidizing the ammonia fumigated fibers obtained in step e); g) performing washing, oiling and drying optionally to obtain the flame-retardant and antibacterial fibers, wherein during ammonia fumigation in the step e), ammonia gas is applied in an insufficient amount relative to that of the tetrakis(hydroxymethyl)phosphonium compound applied in step b), so that part of the tetrakis(hydroxymethyl)phosphonium compound in the fibers does not react with the ammonia gas.
Owner:宁夏全宇新材料有限公司 +1
Antibacterial touch panel and manufacture method thereof
InactiveCN102789329AAchieve long-lasting antibacterial effectHigh production feasibilityAntifouling/underwater paintsPaints with biocidesUltraviolet lightsAnti-fog
The invention discloses an antibacterial touch panel and a manufacture method thereof. The antibacterial touch panel comprises an anti-mist and antibacterial layer and a touch panel base plate, wherein the anti-mist and antibacterial layer is coated on the surface of the touch panel base plate, ultraviolet light or any visible light is reacted with the anti-mist and antibacterial layer in a photocatalysis mode, the antibacterial touch panel of the anti-mist and antibacterial layer with anti-mist and antibacterial characteristics is formed on the l touch panel through the mode.
Owner:高丰有限公司
Household floor disinfectant and preparation method thereof
InactiveCN111357776AReduce precipitationReduce decompositionBiocideFungicidesBiotechnologyBiochemical engineering
The invention relates to the technical field of disinfection, in particular to a household floor disinfectant and a preparation method thereof. The invention provides a disinfectant. Proper traditional Chinese medicine extracts are selected; by limiting the preparation method of the traditional Chinese medicine extract, the applicant can improve the content and purity of antibacterial components in the traditional Chinese medicine extract and avoid the influence of impurities on the sterilization effect of the antibacterial components, so that the sterilization effect, especially the floor sterilization efficiency, is further improved, and a wide sterilization spectrum is achieved. Besides, the applicant can improve the high-temperature and low-temperature stability of the disinfectant, reduce the precipitation and decomposition of traditional Chinese medicine extracts and achieve a long-acting antibacterial effect by adding proper co-solvents and other components, and the disinfectanthas comfortable smell, does not harm the environment and human bodies, and can be used for disinfecting and sterilizing various floors.
Owner:浙江施维康生物医学材料有限公司
Flame-retardant and anti-bacterial fabric for bed sheets and quilt covers in hotels and preparation method of fame-retardant and anti-bacterial fabric
InactiveCN107604657AAchieve long-lasting antibacterial effectFlame retardantBlanketBed linenFiberAqueous solution
The invention relates to flame-retardant and anti-bacterial fabric for bed sheets and quilt covers in hotels and a preparation method of the fame-retardant and anti-bacterial fabric. The method comprises the following steps: a) providing and blending cotton fibers and unmodified or modified vinylon to obtain fabric; b) preparing an aqueous solution of a tetrakis(hydroxymethyl)phosphonium compound;c) soaking the fabric obtained in the step a) in the aqueous solution of the tetrakis(hydroxymethyl)phosphonium compound to obtain soaked fabric; d) drying the soaked fabric obtained in the step c) to obtain dried fabric; e) fumigating the dried fabric obtained in the step d) with ammonia to obtain ammonia fumigated fabric; f) oxidizing the ammonia fumigated fabric obtained in the step e), wherein in an ammonia fumigating process of the step e), applying insufficient amount of ammonia gas relative to the tetrakis(hydroxymethyl)phosphonium compound applied in the step c) to enable part of thetetrakis(hydroxymethyl)phosphonium compound in the fabric not to react with ammonia gas.
Owner:XINXIANG PATRON SAINT SPECIAL FABRIC +2
Moisture-absorbing, sweat-releasing and antibacterial sportswear fabric and preparation method thereof
InactiveCN112941902AGood moisture wicking effectImprove antibacterial propertiesBiochemical fibre treatmentFibre typesPolyesterFiber
The invention discloses a moisture-absorbing, sweat-releasing and antibacterial sportswear fabric. The fabric is formed by weaving warp yarns and weft yarns; both the warp yarns and the weft yarns contain moisture-absorbing sweat-releasing and antibacterial fibers; and the moisture-absorbing sweat-releasing and antibacterial fibers are obtained by modifying polyester fibers. A preparation method for the moisture-absorbing sweat-releasing and antibacterial fibers comprises the following steps of 1, adding the polyester fibers into alkali liquor for soaking and washing to obtain porous polyester fibers; 2, performing amination treatment on nano tungsten diselenide by using an organic amine solution to obtain amino-modified tungsten diselenide; 3, grafting the porous polyester fibers with the amino-modified tungsten diselenide to obtain modified porous polyester fibers; and 4, reacting the modified porous polyester fibers with jateorhizine to obtain the moisture-absorbing sweat-releasing and antibacterial fibers. The prepared sportswear fabric has relatively strong moisture-absorbing and sweat-releasing effects, so that a wearer can feel more comfortable; and the prepared fabric is excellent in antibacterial effect, can play a long-acting and lasting role and is beneficial to health of people.
Owner:宁波共振运动科技有限公司
Antibacterial paint surface protective film
ActiveCN112500808AGood spatial network structureMultiple reactive groupsAntifouling/underwater paintsFilm/foil adhesivesEscherichia coliAdhesive
The invention relates to the technical field of paint surface protective films, in particular to an antibacterial paint surface protective film which comprises a transparent supporting body, and a self-repairing antibacterial protective layer and a transparent release film are sequentially arranged on one optical surface of the transparent supporting body. And an assembly adhesive and a semitransparent release film are sequentially arranged on the other optical surface of the transparent supporting body. Wherein the self-repairing antibacterial protective layer is formed by coating a self-repairing antibacterial coating liquid and then heating and curing the self-repairing antibacterial coating liquid, the self-repairing antibacterial coating liquid protects self-repairing matrix resin, and the self-repairing matrix resin is formed by mixing two resins of which the hydroxyl value ranges from 120mgKOH / g to 140mgKOH / g and the hydroxyl value ranges from 50mgKOH / g to 70mgKOH / g in a mixingratio of (7-9): (1-3). Escherichia coli and staphylococcus aureus can be effectively resisted, and the self-repairing layer has good permeation resistance.
Owner:HEFEI LUCKY SCI & TECH IND
A processing technology of stone composite board
ActiveCN112976707BPreserve the decorative beautification effectOvercome the defect of easy breakageAntifouling/underwater paintsLayered productsCoated surfaceAdhesive
The invention relates to the technical field of building decoration materials, and provides a processing technology for stone composite boards, which includes the following steps: (1) polishing both sides of marble to make the surface of the marble have a certain roughness, and then cleaning and drying the marble; (2) Apply adhesive on one side of the marble, and then bond the substrate on this surface of the marble; (3) Repeat step (2) on the other side of the marble; (4) Cut in half from the middle of the marble , forming two identical semi-finished stone composite boards; (5) coating the cut surface of the marble with an anti-slip composition, and performing fine grinding and polishing on the coated surface to obtain a stone composite board. It solves the problem that the function of the stone composite board made of existing marble is relatively single.
Owner:盛达建材集团有限公司
Functionalized graphene oxide antibacterial material and preparation method thereof
InactiveCN105918319BHigh antibacterial efficiencyIncreased broad-spectrum antimicrobial propertiesBiocideDisinfectantsFreeze-dryingAntibacterial agent
The invention discloses a functionalized graphene oxide bacteriostatic material and a preparation method thereof. The method comprises the following steps that 1, graphene oxide, ammonium halide and a catalyst beneficial for esterification are added into an organic solvent to fully react at the temperature of 50 DEG C to 100 DEG C under the stirring condition, then the reaction products are centrifuged, supernatant is discarded, solids are collected after subnatant is subjected to water washing and alcohol washing, and freeze drying is conducted to obtain substance A, wherein the oxygen content of graphene oxide is 20%-50%, and carboxyl accounts for 15% of the total oxygen content; 2, the substance A and a sodium hypochlorite solution are mixed to be uniform according to the mass ratio of 1:(2-100) and fully react at the temperature of 25 DEG C-50 DEG C under the stirring condition, and reaction products are subjected to water washing and freeze drying to obtain the functionalized graphene oxide bacteriostatic material. According to the method, a synergistic antibacterial agent is grafted onto graphene oxide by taking graphene oxide as a substrate, and the prepared product not only has the antibacterial property of graphene but also has the additional antibacterial property of ammonium halide.
Owner:TIANJIN POLYTECHNIC UNIV
Processing technology of stone composite board
ActiveCN112976707APreserve the decorative beautification effectOvercome the defect of easy breakageAntifouling/underwater paintsLayered productsCoated surfaceAdhesive
The invention relates to the technical field of building decoration materials, and provides a processing technology of a stone composite board, which comprises the following steps: (1) polishing two surfaces of marble to enable the surface of the marble to have certain roughness, and then cleaning and drying the marble; (2) coating one surface of the marble with an adhesive, and then bonding a base plate on the surface of the marble; (3) repeating the operation in the step (2) on the other side of the marble; (4) performing half-and-half cutting from the middle of the marble to form two identical stone composite board semi-finished products; and (5) coating an anti-skid composition on the cutting surface of the marble, and carrying out fine grinding and polishing treatment on the coated surface to obtain the stone composite plate. The problem that an existing stone composite board made of marble is relatively single in function is solved.
Owner:盛达建材集团有限公司
Method for preparing polyurethane-nanometer silver long-acting antibacterial film by modification after heat treatment
The invention relates to a method for preparing a polyurethane-nanosilver long-acting antibacterial film by a post-heat treatment modification method, which includes the following steps: (1) diisocyanate and polytetrahydrofuran are mixed to react; a cross-linking agent and an acetone solution of a chain extender are added, dimethylolpropionic acid and a catalyst are added, reaction takes place, and thereby PU (polyurethane) is obtained; a dimethylformamide solution of silver nitrate is added into a polyurethane solution, a film is formed after uniform stirring, heat treatment is carried out, and thereby a polyurethane-nanosilver film is obtained; (2) 4,4'-dihydroxybenzophenone reacts with long-chain alkyl halide, so that 4,4'-bis-long-chain alkoxy benzophenone is obtained; the 4,4'-bis-long-chain alkoxy benzophenone reacts with hydrazine hydrate, so that 4,4'-bis-long-chain alkoxy benzophenone hydrazone is obtained; and the 4,4'-bis-long-chain alkoxy benzophenone hydrazone undergoes oxidation reaction, so that long-chain alkyl diazomethane is obtained; (3) the long-chain alkyl diazomethane is dissolved into a solvent, and is uniformly applied onto the surface of the polyurethane-nanosilver film, and after heat treatment, the polyurethane-nanosilver long-acting antibacterial film is obtained. The method can be used for realizing long-acting bacteria resistance.
Owner:QILU UNIV OF TECH
Bacteriostatic regenerated cellulose fiber
PendingCN114411298AGood flexibilityGood strengthCarbon fibresBiochemical fibre treatmentAnti bacterialRegenerated cellulose
The invention relates to an antibacterial regenerated cellulose fiber, and belongs to the technical field of antibacterial fibers. The fiber is a composite fiber and is composed of a core bacteriostatic protein fiber and an outer bacteriostatic bamboo fiber, the bacteriostatic protein fiber has good toughness, the bacteriostatic bamboo fiber has good strength, and the bacteriostatic protein fiber and the bacteriostatic bamboo fiber are woven and formed, so that the prepared fiber has good flexibility and strength, and meanwhile, the skin-friendly feeling is kept. According to the antibacterial protein fiber, silk protein is extracted from silk, the silk protein is blended with ultramicro chitosan powder, the modified fiber forms filler, the silk protein is subjected to spinning forming, in addition, cinnamon essential oil is added for kneading, then a water-soluble film layer is coated, volatilization of the cinnamon essential oil is slowed down, in the processes of sweat absorption, washing and the like, the film layer is gradually damaged, and the antibacterial effect is achieved. The cinnamon essential oil is slowly released, and the chitosan is also slowly released, so that the loss of bacteriostatic components of the bacteriostatic bamboo fiber on the surface layer is made up, and the antibacterial bamboo fiber has relatively long-acting antibacterial ability.
Owner:安徽弋尚纺织科技有限公司
Long-acting composite enzyme disinfection composition for children and application thereof
PendingCN111298108AHigh activityProlong its resistancePeptide/protein ingredientsAntisepticsBiotechnologyCationic polymerization
The invention relates to a long-acting composite enzyme disinfection composition for children and an application thereof. The disinfection composition consists of a composite enzyme dextrin inclusioncompound, a positively charged cationic polymerization group, a stabilizing agent, a humectant and the like, wherein the composite enzymes comprise one or two of lysozyme and lysostaphin, and one or two of chitinase and snailase; and in each gram of the composite enzyme dextrin inclusion compound, the concentration of the lysozyme is 100-200mg / g, the concentration of the lysostaphin is 0.1-1mg / g,the concentration of the chitinase is 100-200mg / g, and the concentration of the snailase is 10-100mg / g. The long-acting composite enzyme disinfection composition for children can for be released slowly for resisting bacteria, can prolong activity and stress resistance of the composite enzymes in a disinfection product in a use environment, and can realize a long-acting antibacterial effect. In addition, the composition has the advantages of wide sterilization spectrum, small skin irritation and no skin coloring problem, has high durability, and can be suitable for both of adults and children with delicate skins.
Owner:亘元(天津)生物医药科技有限公司
A kind of long-acting antibacterial latex mattress and preparation method thereof
ActiveCN111138728BImprove antibacterial propertiesReduce releaseStuffed mattressesSpring mattressesAntimicrobial actionAnti bacterial
Owner:JIANGSU ZHONGHENG KELAIBI FURNITURE CO LTD
An antibacterial paint protective film
ActiveCN112500808BGood spatial network structureMultiple reactive groupsAntifouling/underwater paintsFilm/foil adhesivesEscherichia coliStaphylococcus aureus
The invention relates to the technical field of paint protection films, in particular to an antibacterial paint protection film. The paint protection film includes a transparent support, and a self-healing antibacterial protection film is sequentially arranged on an optical surface of the transparent support. layer and a transparent release film; an assembly glue and a translucent release film are sequentially arranged on the other optical surface of the transparent support. The self-healing antibacterial protective layer is formed by heating and curing after being coated with a self-healing antibacterial coating liquid. The self-healing antibacterial coating liquid protects the self-healing main resin, and the self-healing main resin has a hydroxyl value in the range of 120mgKOH / g~140mgKOH / g and two resins with hydroxyl value in the range of 50mgKOH / g~70mgKOH / g are mixed, and the mixing ratio is (7~9):(1~3). It can effectively fight against Escherichia coli and Staphylococcus aureus, and the self-healing layer has good penetration resistance.
Owner:HEFEI LUCKY SCI & TECH IND
Method for preparing polyurethane-nanometer silver long-acting antibacterial film by modification after ultraviolet light irradiation
Owner:QILU UNIV OF TECH
A slow-release antibacterial absorbable medical suture and preparation method thereof
ActiveCN105056294BGood compatibilityPromote copolymerizationSuture equipmentsConjugated cellulose/protein artificial filamentsBiotechnologyFiber
Owner:安徽省康宁医疗用品有限公司
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