300results about How to "Good antibacterial and antifungal effect" patented technology

The invention relates to a paint technology, an environment-friendly technology and an antibacterial mould-proof technology, in particular to high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint and a preparation method thereof. The high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint comprises the following components in percentage by weight: 0.5 to 5 percent of wetting dispersant, 0.01 to 20 percent of inorganic composite nano antibacterial agent concentrated pulp, 0.5 to 10 percent of hydrophobing agent, 0.5 to 10 percent of anionic powder, 0.5 to 8 percent of film-forming aid, 0.1 to 2 percent of anti-settling agent, 0.8 to 10 percent of antifreezing agent, 0.1 to 3 percent of defoaming agent, 4 to 30 percent of pigment, 0 to 30 percent of filler, 15 to 45 percent of emulsion, 0.1 to 4 percent of thickening agent, 0.1 to 3 percent of flatting agent, 0 to 3 percent of pH regulator and 0.5 to 45 percent of water. The high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint is mainly prepared by adding the inorganic composite nano antibacterial agent into the basic materials, so that the paint has the coating characteristic of high performance, is low is cost, and has a function of purifying air, can eliminate harmful gas volatile organic compounds (VOC), formaldehyde and the like and also has a durable and high-efficiency antibacterial mould-proof function, so that the sterilizing rate within 6 hours reaches 100 percent and the mould-proof grade reaches the first grade. By the high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint and the preparation method thereof, self-cleaning performance, hydrophobicity, scrubbing resistance, dirt resistance and weather resistance of the coating are improved; and the high-efficiency and durable antibacterial and mould-proof effect is achieved.

The invention can provide a hydrophilic composition and a hydrophilic member having high hydrophilic property and excellent durability and high antifungal effect.The hydrophilic composition includes a hydrophilic polymer (I) that includes a specific structure and an additive having antibacterial or antifungal property in an amount exceeding 10 mass % with respect to the total solids content of the hydrophilic composition.

The invention relates to a natural antibacterial mould proofing detergent without petrochemical components. The detergent which is produced by organically combining petrochemical component-free natural plant extract, petrochemical component-free natural mineral extract and existing products processed by modern biological technologies has high safety to human bodies and the environment, is environment-friendly, is capable of efficiently resisting bacteria and mildew, has strong broad-spectrum antibacterial and mould proofing performances, especially has excellent antibacterial performance for drug resistant germs, can remove heavy metals such as lead, and AOX (adsorbable organic halide) attached to clothes and skin, and has good vegetal washing effect especially for the fabric dyed with natural dyes, and the fabric dyed with natural dyes does not fade or change color after being washed with the detergent. The natural antibacterial mould proofing detergent does not contain oxidant or fluorescent brightener, is nonirritant to the skin, is applicable to washing the fabric and clothes of children, can be used for washing tableware and vegetables, can be used as liquid soap, liquid shampoo, bath foam and the like, is environment-friendly, safe and hygienical, and is a multifunctional washing product.

The invention provides a method for preparing an enamel surface glaze. The method comprises the following steps of: (a) mixing the following raw materials in percentage by weight: 10-20 percent of Na2O, 8-25 percent of B2O3, 35-55 percent of SiO2, 15-25 percent of TiO2, 1-5 percent of CaF2, 0-3 percent of MgO, 0.05-2 percent of CuO, 0.5-4 percent of P2O5, 0-5 percent of CaO, and 1-6 percent of Al2O3, melting at 1200-1300 DEG C and quenching in water to be fusion cakes with the diameter of 1-3 mm; and (b) grinding the nano ZnO with the prepared fusion cakes, a suspending agent, an electrolyte and water in a milling addition mode into the surface glaze. The enamel surface glaze provided by the invention is doped with CuO and added with ZnO in a milling way, and the coating of the prepared enamel has favorable bacterium and mildew resistance, white color and stable luster.

The invention provides an environment-friendly anti-corrosion and anti-bacterial interior wall anion coating, which is composed of the following components in parts by weight: 200-250 parts of synthetic resin emulsion, 50-150 parts of anion powder, 15-30 parts of anti-corrosion and anti-bacterial agent, filler 220-280 parts, 3-6 parts of defoamer, 5-9 parts of dispersant, 6-10 parts of film-forming aid, 6-10 parts of thickener, 10-18 parts of leveling agent, 200-250 parts of pigment , 250-300 parts of water. The object of the present invention is to provide an environment-friendly anti-corrosion and anti-bacterial interior with good and long-lasting antibacterial and anti-mildew effects, good performance, non-toxic and harmless to the human body, green environmental protection, good safety, containing negative ions, and capable of inhibiting bacteria and deodorizing. Negative ion paint for walls.

Zinc pyrithione and copper pyrithione are highly evaluated in the market as an antidandruff agent for shampoo, or an antifouling agent for ship bottom paint and fish-farming net, or an antibacterial / antifungal agent or preservative / mildewcide for industrial products and household articles. For enhancing the market value thereof, there has been a demand for a product that not only attains an increase in conventional antibacterial / antifungal effects but also exhibits novel bioactive effects and that achieves improvement with respect to problems and drawbacks relating to properties, such as solubility in seawater, and stability, such as thermal stability and weather resistance, of polymer materials. There is provided a novel pyrithione complex compound obtained by converting the conventional pyrithione metal salt to a complex compound with an oxide or hydroxide of metal such as zinc, copper or aluminum. As compared with the conventional pyrithione metal salt, this complex compound exhibits superior antibacterial / antifungal effects, newly realizes a hair-regrowing effect and successfully attains improvement with respect to the solubility in seawater and thermal stability / weather resistance of polymer materials.

The invention discloses a water-based nanometer titanium dioxide photocatalytic sterilization purification coating and a preparation method thereof. The coating is prepared from 38-55 wt% of nanometertitanium dioxide, 10-30 wt% of a waterborne organosilicone modified acrylic emulsion, 2-5 wt% of silicate, 1.5-3.5 wt% of an inorganic antibacterial agent, 1-3 wt% of negative ion micro-powder, 1.4-5.0 wt% of a functional assistant, 2-4 wt% of a silane coupling agent, 0.4-0.8 wt% of a wetting dispersant, and the balance of water. The coating has air purifying and bacterium killing effects, is green and environmentally friendly, has excellent anti-aging property, scrub resistance, cohesiveness, corrosion resistance and the like, can directly replace putty powder and a latex paint, and can be directly firmly bonded with a cement mortar wall without peeling, shedding or cracking.

The invention provides a bio-based environmental protection packaging bag and a preparation method thereof, wherein the packaging bag comprises, by weight, 20-40 parts of corn starch, 50-70 parts of PBAT, 10-20 parts of PLA, 5-10 parts of glycerin, 0.1-1 part of maleic anhydride, 1-5 parts of an ethylene-vinyl acetate copolymer, 0.1-1 part of an opening agent, 1-3 parts of an antibacterial agent,1-3 parts of talc powder, 1-3 parts of calcium carbonate, and 0.1-1 part of a chain extender. The preparation method comprises: raw material pretreatment, raw material mixing, extrusion granulation, granule mixing, extrusion film-blowing, and winding to prepare the packaging bag. According to the present invention, by using starch, PBAT and PLA as the raw materials, the degradation performance ofthe packaging bag is improved, the packaging bag is environmentally friendly, the cost is reduced, the consumption of petroleum-based resources is reduced, the antibacterial and antifungal propertiesof the packaging bag are improved, the safety of food is ensured, and the product has advantages of high strength, water resistance, oil resistance and durability during the use; and the packaging bagis prepared through blowing film forming by the blowing machine, such that the specification is controllable, the application range is wide, and the method is suitable for large-scale industrial production and promotion.

The invention discloses an antibiotic fungus-proof decomposalbe polylactic foam plastic and preparing method, which comprises the following parts: 100wt% polylactic resin, 1-5wt% antibiotic fungus-proof additive, 0.5-2wt% crosslinking agent, 0.5-5wt% nucleation agent, 0.5-2.5wt% foaming agent, 0.5-3wt% plasticizer and 0.5-1wt% anti-oxidant. The manufacturing method comprises the following steps: squeezing the composite material without foaming agent to prepare antibiotic fungus-proof mother material directly; adding foaming agent in the mother material; squeezing directly; moulding; flatting; drawing; coiling; packing.

The invention belongs to the field of plastic tubular product, and more specifically relates to an antibacterial wear-resistant plastic tubular product, and a preparation method thereof. The antibacterial wear-resistant plastic tubular product is prepared from, by weight, 100 to 150 parts of high density polyethylene, 10 to 30 parts of acetylated monoglyceride, 10 to 30 parts of coumarone resin, 5to 10 parts of anti-oxidant 1010, 20 to 40 parts of hollow glass bead, 10 to 15 parts of nanometer silver, 1 to 6 parts of chlorinated polyethylene, 3 to 7 parts of high resistant carbon black, 5 to8 parts of silane coupling agent, 5 to 10 parts of nanometer titanium dioxide, 3 to 6 parts of zinc oxide, 10 to 15 parts of acrylic resin, and 15 to 20 parts of an auxiliary agent. The antibacterialwear-resistant plastic tubular product possesses excellent heat resistance, wear resistance, antibacterial performance, and mildew resistance. The mechanical strength of the antibacterial wear-resistant plastic tubular product is not influenced by the antibacterial performance and mildew resistance, wear resistance is excellent, service life is long, and market application prospect and economic benefit are excellent.

The invention belongs to the field of preparation of polypropylene non-woven fabrics, and relates to an antibacterial mildewproof polypropylene non-woven fabric and a preparation method thereof. The antibacterial mildewproof polypropylene non-woven fabric comprises polypropylene, a guanidine salt composite antibacterial agent, a mildewproof agent and other auxiliaries; the guanidine salt compositeantibacterial agent is prepared from, by weight, 100 parts of a guanidine salt polymer, 0.01-40 parts of zinc salt and / or copper salt, 0.1-10 parts of an anti-migration agent, 0.5-100 parts of nano-sized powder rubber and 0.1-10 parts of a dispersing agent. The non-woven fabric has good antibacterial and mildewproof performance, a long-lasting effect and good water resistance.

The invention relates to a polymer / Ag doped nanometer ZnO long-acting antibacterial and mildew-proof finishing agent for a cotton fabric and a preparation method of the finishing agent. The existing antibacterial material for the cotton fabric is low in antibacterial performance, great in one-time dissolution, and not lasting in the antibacterial and mildew-proof performance. Ag doped nanometer ZnO is prepared by using zinc acetate and silver nitrate as precursors by a coprecipitation method; the polymer / Ag doped nanometer ZnO long-acting antibacterial and mildew-proof finishing agent is prepared by using Ag doped ZnO, allyl glycidyl ether and dimethyl diallyl ammonium chloride as raw materials via an in-situ polymerization method. The antibacterial and mildew-proof finishing agent is applied to the afterfinish of the cotton fabric; the Ag doped ZnO in the composite material and N+ in the dimethyl diallyl ammonium chloride can jointly resist bacteria to achieve the efficient antibacterial and mildew-proof performance; the hydroxyl of the cotton fabric surface can be crosslinked with the epoxy group in the polymer; the long-acting antibacterial and mildew-proof performance of the cotton fabric is improved; meanwhile, the injury to the human body caused by one-time dissolution of the nanometer antibacterial material used by the fabric is reduced.

The invention discloses an antibacterial fiber. The fiber comprises following raw materials, by weight: 1 to 15% of silver oxide powder or silver nitrate powder; and one or more selected from polybutylene terephthalate, polyamide, polypropylene and polyethylene; with the balance being polyethylene glycol terephthalate. The raw materials are mixed uniformly and then the fiber is produced by melting spinning. The formula of the antibacterial fiber is reasonable; antibacterial material is embedded into the matrix material of the fiber, so that the active compounds will not fall off easily; the stability of the fiber is excellent; and the fiber is capable of preventing and killing bacterial in a long term. Antibacterial and mould-proof effects of the fiber are excellent; the fiber is capable of preventing bacterial, and also controlling and preventing fungus (mould) effectively. Blending ratio is low, and the antibacterial performance is excellent; and the fiber is capable of keeping bacterial away; so that the blending ratio is reduced, cost is saved, and antibacterial performance is enhanced. The fiber is safe to use, and can be widely applied in the field of medical equipment, medical clothes, military, household textile product, clothes, and outdoor activities.

The invention discloses nano titanium dioxide photocatalytic disinfecting and purifying coating, made from, by weight, 38-55% of nano titanium dioxide, 10-30% of fluorocarbon emulsion, 2-5% of an inorganic porous material, 1.5-3.5% of a rare-earth antibacterial agent, 1-3% of an anion release agent, 1.4-5.0% of functional aids, 2-4% of titanate coupling agent, 0.4-0.8% of a wetting dispersant, andthe balance of deionized water. The nano titanium dioxide photocatalytic disinfecting and purifying coating has the functions such as air purifying and bacteria killing, is green, has excellent properties such as aging resistance, scrubbing resistance, adhesion, corrosion resistance, may directly replace putty powder and latex paint, may be directly bound to a cement mortar wall, and is firm andfree of skinning, separating and cracking.

The invention discloses a luminous antibacterial aqueous inner wall coating and a preparation method and application thereof. The formula of the luminous antibacterial aqueous inner wall coating comprises the following components in part by weight: 30 to 60 parts of film-forming emulsion, 5 to 50 parts of luminous pigment, 5 to 40 parts of white pigment and filler, 0.5 to 15 parts of montmorillonoid filler, 0.1 to 5 parts of auxiliary agent and 5 to 15 parts of water. In the coating, aluminate long-afterglow luminous material subjected to surface treatment is used as the luminous pigment, pillared montmorillonite of loaded germicide quaternary phosphonium salt is used as antibacterial filler, and acrylic acid emulsion is used as base resin; and the multifunctional inner wall coating with good luminous, antibacterial and waterproof properties is obtained by adding the auxiliary agent. The coating is endowed with excellent luminous, antibacterial and mildew-proof properties based on the traditional inner wall coating; the preparation process is simple and feasible; the raw materials have low cost; and the coating can be used for large-area decoration of multiple places, combines the traditional decoration and emergency indication or weak light illumination functions, and has good industrialized value and broad application prospect.

The invention discloses an antibacterial and mildew-proof ceramic artware and a preparation method thereof. The antibacterial and mildew-proof ceramic artware comprises a ceramic green body and a glaze layer coating the outer surface of the ceramic green body, wherein the ceramic green body is prepared from the following raw materials in parts by weight: ceramic waste, a quartz material, kaolin, dolomite clay, a fluxing agent, nano calcium carbonate powder and an adhesive; the glaze layer is prepared from the following raw materials in parts by weight: kaolin, albite, a dispersing agent, an antibacterial complexing agent, a mildew preventive and carboxymethyl cellulose. The antibacterial and mildew-proof ceramic artware is prepared from the raw materials of the ceramic body and the glaze;the raw materials are reasonably matched, the content of the raw materials is optimized and the proper proportion is selected, so that the raw materials are brought into full play, the raw materials supplement each other and promote each other, and the prepared ceramic artware has excellent antibacterial and mildew-proof effects. The ceramic artware can effectively kill various bacteria, reduces harm to human health and is high in safety.

The invention discloses components and a preparation method of antibacterial and mildew-proof treatment liquid of a digital printing real-silk silk painting and an antibacterial and mildew-proof post-treatment process. The treatment liquid is prepared from 2.00%-6.00% of phenyl salicylate, 0.10%-0.70% of dichlorophenol, 0.10%-0.40% of 2-phenylphenol, 0.10%-0.70% of N-octylisothiazolinone, 2.00%-6.00% of sodium alginate, 30.00%-45.00% of ethanol and 41.20%-65.70% of de-ionized water. All the components of the treatment liquid are added into a mixed solution of the ethanol and the de-ionized water and are stirred to be sufficiently dissolved; and the obtained liquid can be used for post-treatment process steps of starching a real-silk white blank of the digital printing real-silk silk painting, drying, drawing by spraying, steaming, washing with water, and impregnating by the antibacterial and mildew-proof treatment liquid and the like. The antibacterial and mildew-proof treatment liquid has a simple and convenient preparation process, has no toxicity and damages to human bodies and no any toxic side effect on the environment, does not damage a silk protein structure in a silk fabric and does not influence the real effect of the digital printing real-silk silk painting; and the difficulties that various bacteria are easily bred on the real-silk silk painting and the real-silk silk painting has mildew, so that the quality and service life of the painting are influenced are overcome.

The invention relates to a finishing technology of a nano-silver antimicrobial textile. The finishing technology comprises the work procedures of finishing a gray fabric of a semi-finished textile, softening for shaping and drying for shaping. The finishing technology is characterized in that during the work procedure of softening for shaping, the gray fabric is completely soaked in a nano-silver ion material liquid for 1-120 minutes and then is taken out, washed by water and dried in air to obtain the nano-silver antimicrobial textile, wherein the nano-silver ion material liquid is obtained by means of mixing 0.01%-5% by weight of an amino-terminated hyperbranched polymer, an aqueous solution of quaternary ammonium salt of the amino-terminated hyperbranched polymer, and a silver nitrate solution with molality of 0.01-0.5 mol / L. The textile, produced by the finishing technology adopting a manner of completely soaking the gray fabric of the textile in the nano-silver ion material liquid in the softening for shaping of the gray fabric and then drying the gray fabric, has remarkable antibacterial and mildew-proof effects and lasting functions, has health-care functions such as removal of undesirable odor, and can endure multiple times of water washing and repeated dry-cleaning.

The invention provides a preparation method of a garden soil conditioner. The method includes: firstly, taking dried straw prior to smashing, adding chitosan powder, humic acid and gelatin solution, mixing, heating up prior to adding tetrabutyl titanate, sodium alginate and calcium nitrate tetrahydrate, heating up, cooling and filtering to obtain solid substances; secondly, putting calcium bentonite, tannin, lignin, polyacrylamide, vinyl acetate, soybean lecithin and p-toluenesulfonic acid into water with stirring, and then adding sodium of polyaspartic acid, N-(n-Butyl)thiophosphoric triamide and potentilla anserine prior to mixing to obtain a mixture I; finally, adding a potassium hydroxide solution into the mixture I to regulate the pH value, adding organic acids and the obtained solid substances, and uniformly mixing prior to standing to obtain the garden soil conditioner. The garden soil conditioner can increase survival rate of garden plants and has good antibacterial and anti-mildew effect.

The invention relates to the field of plastic anti-bacteria and particularly provides anti-bacterial polypropylene plastic and a preparation method thereof. The method comprises steps as follows: (1), in the presence of an aqueous solvent, poly guanidine salts and sodium 2-mercaptopyridine N-oxide are mixed and contacted, solid substances are obtained, dried and smashed, and an anti-bacterial agent is obtained, wherein the poly guanidine salts comprise polyhexamethylene guanidine salt and polyhexamethylene biguanidine salt; (2), polypropylene, the anti-bacterial agent, an optional antioxidant, an optional dispersing agent and an optional compatilizer are subjected to melt blending, extrusion pelletizing, drying and injection molding. The preparation method is simple and easy, and the anti-bacterial plastic has good anti-bacterial and anti-mold effects, is high in water resistance and has bright application prospect.

The invention belongs to the technical field of polypropylene filaments, and relates to an antibacterial and mildew-resistant polypropylene filament and a preparation method thereof. The antibacterialand mildew-resistant polypropylene filament is prepared from polypropylene, a guanidine salt composite antibacterial agent, a mildew-resistant agent and other auxiliary agents; the guanidine salt composite antibacterial agent is prepared from, by weight, 100 parts of a guanidine salt polymer, 0.01-40 parts of zinc salt and / or copper salt, 0.1-10 parts of an anti-migration agent, 0.5-100 parts ofnano-sized powder rubber and 0.1-10 parts of a dispersing agent. The polypropylene filament has the good antibacterial and mildew-resistant performance, a long-lasting effect and good water resistance, antibacterial and mildew-resistant surface treatment is not needed after neutralization spinning is completed in the preparation process, the process is simple and easy to implement, and the preparation cost is low.

The invention discloses an antibacterial mildew-resistant synthetic leather. The synthetic leather comprises a basic cloth layer, a PVC foam layer, and a PU surface layer. The surface layer is composed of the following raw materials in parts by weight: 80 to 100 parts of aqueous polyurethane resin, 10 to 15 parts of beta-cyclodextrin, 1 to 2 parts of litsea cubeba oil, 0.5 to 1 part of anise oil, 0.2 to 0.5 part of frankincense oil, 2 to 4 parts of xanthan gum, 2 to 6 parts of shell powder, 1 to 3 parts of barite powder, 0.2 to 0.5 part of barium stearate, 0.2 to 1 part of triethanolamine, 0.2 to 0.5 part of potassium fulvate, 0.2 to 1 part of poly(epoxy sodium succinate), 0.5 to 1.5 parts of allantoin, 2 to 4 parts of modifying aids, and 2 to 4 parts of pigment. The provided synthetic leather can effectively prohibit the microbe propagation on leather, and prevents mildew and corrosion at the same time. The effects on preventing bacteria and mildew can last for a long time. Moreover, the leather quality is stable, the service life is prolonged, and the latent hazard to human health is reduced.

The invention discloses a nano-copper antibacterial plastic masterbatch and a preparation method thereof. The antibacterial plastic masterbatch is prepared from the following components in parts by weight: 1-10 parts of an antioxidant, 1-20 parts of liquid paraffin, 1-30 parts of a nano-copper antibacterial agent and 40-90 parts of a plastic body. The preparation method comprises the following steps: raw material pretreatment, mixing, extruding and pelletizing. The antibacterial plastic masterbatch disclosed by the invention has the advantages of simple production process, high universality, good machinability and the like; continuous large-scale production can be achieved; the plastic product obtained by the plastic processing manners such as injection molding and extruding has a good antibacterial effect; and the mechanical property of the plastic product is not affected by addition of the antibacterial masterbatch.

The invention discloses a thermal insulation coating for building external walls. The thermal insulation coating is prepared from the following raw materials in parts by weight: 50-60 parts of modified polyurethane, 30-36 parts of modified composite aerogel, 8-12 parts of floating beads, 1.5-2 parts of rutile titanium dioxide, 1.5-2 parts of silicon carbide, 2-3 parts of mirabilite and 0.6-1 partof an auxiliary agent. The invention also discloses a preparation method of the coating. By adding the composite aerogel, the microporosity in the coating can be greatly improved, and the heat conduction path can be prolonged; besides, the rutile type titanium dioxide and the silicon carbide capable of reflecting radiant heat are introduced to block a propagation path of radiant heat conduction, and a phase change energy storage material mirabilite is introduced, so that the overall performance of the thermal insulation coating can be effectively improved in the coating; by starting from threepaths (conduction, radiation and convection) of heat transfer, the coating has excellent heat preservation and insulation performance; the film-forming substance can endow the paint with favorable antibacterial, mildew-proof and waterproof properties, and the obtained thermal insulation coating is suitable for building exterior walls.

The invention provides mould-proof antibacterial decorative paper and a preparation method thereof. Part of paraffin is added into base paper, and as the paraffin has a good waterproof effect, moisture is effectively prevented from permeating in the base paper in a humid environment; furthermore, in the preparation of an ink layer on the surface of the base body, by controlling the drying speed by stages, part of the paraffin in the base paper melts and permeates into the ink layer while ink permeates into the fiber of the base paper in a 150-160 DEG C drying tunnel; by combined action of the charge force of other substances, mixed liquor containing nano fibers is sprayed onto the surface of the ink layer, and in the further drying process, the nano fiber can tightly adhere to a mixed layer formed by the ink layer and the paraffin; therefore, the decorative paper has good hydrophobic, humidity resistant, sterilizing and mould proof effects.

The invention discloses a glass fiber reinforced polypropylene composition and a preparation method thereof. The glass fiber reinforced polypropylene composition comprises the following components in parts by weight: 41-92 parts of polypropylene, 5-40 parts of glass fiber, 1-10 parts of a compatibilizer, 0.1-10 parts of a high hydrophobic additive and 0.05-1 part of an antibacterial agent. A specific content of the high hydrophobic additive and the antibacterial agent are selected to be added into the glass fiber reinforced polypropylene composition formula, the polarity of the surface of the glass fiber reinforced polypropylene composition can be changed fundamentally, the hydrophobic performance of the glass fiber reinforced polypropylene composition is greatly improved, the antibacterial performance and the mildewproof performance of the glass fiber reinforced polypropylene composition are improved, the glass fiber reinforced polypropylene composition has very high self-cleaning property, the application field of a glass fiber reinforced polypropylene material is greatly widened, and the application level of the glass fiber reinforced polypropylene material is improved.

The invention discloses a fluoride-free waterproof finishing agent and preparation and application methods thereof, and relates to the technical field of fabric finishing. According to the technical scheme, the fluoride-free waterproof finishing agent is characterized by being prepared from, by weight, 2-4 parts of a fluoride-free water repellency agent, 0.1-0.3 part of a cross-linking agent, 1-2parts of a penetrating agent, 1-2 parts of a defoaming agent and 45-55 parts of water; the fluoride-free water repellency agent comprises fatty alcohol polyoxyethylene ether. According to the fluoride-free waterproof finishing agent, the characteristic of low-surface performance of the fluoride-free water repellency agent is utilized, excellent water repellency performance is achieved, the fluoride-free waterproof finishing agent prepared through cooperation of the fluoride-free water repellency agent, the cross-linking agent, the penetrating agent and the defoaming agent can be quickly spreadout to form a film on the fiber surface, the friction coefficient of the fiber surface is effectively reduced, and the waterproof performance of fiber fabrics is improved.

The invention discloses an anti-microbial TPU material and a preparing method thereof. The anti-microbial TPU material comprises raw materials including, by weight, 1-15 parts of polyether polyol, 15-55 parts of isocyanate, 3-25 parts of a chain extender, 10-35 parts of polyamide, 0.5-6 parts of an anti-microbial agent, 5-40 parts of polyethylene glycol, 0.1-5 parts of a mildew preventive, 0.05-4 parts of an antioxidant, 1-15 parts of organic bismuth, 0.1-8 parts of an antiblocking agent and 0.1-20 parts of a filler. The above raw materials are weighed according to the parts by weight and are evenly mixed; and an obtained mixture is dried, and extrusion is carried out in a casting machine to obtain the anti-microbial TPU material. The anti-microbial TPU material has the technical advantages of high abrasive resistance, good elastic toughness, high hydrolytic resistance, high hardness, high yellowing resistance, high transparency, high tearing strength and the like; the anti-microbial agent, the mildew preventive, the antioxidant and the antiblocking agent are added, and therefore the anti-microbial TPU material has the beneficial effect of being high in anti-microbial and mildew-preventing performance, and wide application of the TPU material in the field with high anti-microbial requirements is promoted; and the anti-microbial TPU material and the preparing method have the wide market prospect.

The invention discloses an interior wall antibacterial and mildew-resistant functional coating which contains the following ingredients, by weight, 18-40 parts of antibacterial powder, 10-20 parts of a mildew preventive, 10-20 parts of a preservative, 1.2-3.6 parts of hydroxyethyl cellulose, 100-500 parts of deionized water, 0.2-0.8 part of a water treatment agent, 0.5-1.5 parts of a pH regulator, 2.8-5 parts of a wetting agent, 3.6-10 parts of a dispersant, 448-668 parts of a colouring agent, 1-2 parts of an antifoaming agent, 70-230 parts of a modifier, 6-9.4 parts of a filling material, 110-277 parts of an emulsion, 12.8-22 parts of a film forming agent, 12-60 parts of an antifreezing agent, 30-90 parts of a thickening agent, 60-200 parts of Huizhu and 1-10 parts of superfine cellulose. The interior wall antibacterial and mildew-resistant functional coating has excellent antibacterial effect and long antibacterial and mildew-resistant time and can be used to remarkably improve indoor environment and raise air quality. In addition, the coating is harmless to human body, has no peculiar smell, has good mechanical property and decoration property, and is a highly-efficient environmental-production functional interior wall coating.