37results about How to "Achieve long-lasting antibacterial effect" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.