186results about How to "Improve dirt resistance" patented technology

Fluorochemical free aqueous coating compositions are disclosed. The compositions comprise a film-forming polymer and an organophosphate surfactant. The compositions exhibit superior wetting and leveling properties compared to fluoroaining sulfur based surfactants. Inventive compositions are particularly suitable for use as floor finishes. Methods of makinge aqueous coating compositions are also described.

A steam hairdressing apparatus to style the hair, including: a first and a second jaw arranged facing one another, a first treatment surface borne by the first jaw and a second treatment surface borne by the second jaw, the surfaces intended to grasp a lock of hair, a reservoir of liquid, a means of vaporization of the liquid in fluid communication with the reservoir, a steam distribution means in communication with the means of vaporization, comprising one or more steam distribution orifices in the direction of a lock of hair, the means of vaporization comprising a first vaporization chamber forming a unique volume, a second vaporization chamber equipped with a plurality of baffles, said chambers in fluid communication, the internal volume (V1) of the first chamber being greater than the internal volume (V2) of the second chamber.

The invention relates to the field of anti-reflection technology for the surface of glass, and concretely relates to a nanometer core-shell silicon dioxide microsphere and a composite coating solution which is compounded by the nanometer core-shell silicon dioxide microspheres and aluminum silicon sol as well as preparation methods thereof. A cation type polystyrene emulsion is used as a hard template in order to prepare silicon dioxide dispersion liquid with a nanometer core-shell structure, the dispersion liquid and the aluminum silicon sol are compounded in order to prepare the coating solution for an antireflection film, toughening treatment is carried out for the coating solution in order to obtain the antireflection film. The raw materials are easy to obtain, and the antireflection film with a hollow structure is prepared by a simple process; pore spaces are arranged in particles and are not arranged in a silicon dioxide network, so that high light transmittance of the film is guaranteed, the light transmittance reaches 94.5% or above, and the porosity is high; the film has excellent smudginess resisting performance, the antireflection film and a glass substrate can be firmly combined, and the hardness of the film is high; because the surface of the film is compact, the film has good blocking effects for steam erosion, good weatherability, and industrialized application values.

The invention provides a micro-arc oxidation electrolyte which is a water solution comprises phosphate and silicate, and has 6-12 PH value. The electrolyte has characteristics that the electrolyte also comprises colorant, the colorant comprises A and B components, wherein, A comprises one or some of potassium fluoride, sodium fluoride, sodium sulfate and borax, B comprises cupric pyrophosphate and/or bluestone. The micro-arc oxidation electrolyte and the method for micro-art oxidating provided by the invention can make micro-arc oxidation film of light metal material obtaining uniform color for having beautiful decorating effect. At the same time, the obtained micro-arc oxidation film of light metal material surface has better stain resistance and compactness that increases additive value and practical using value of magnesium alloy greatly.

The invention relates to the field of antireflection film coating liquid and particularly relates to a template agent for the antireflection film coating liquid as well as a preparation method and application of the template agent. The preparation method comprises the following steps: firstly preparing the template agent: reacting by virtue of at least three monomers, a solvent, an initiator and an aid; preparing silica sol: putting alkoxy silane and a solvent into a reaction container, adding a catalyst at a temperature of the room temperature to 90 DEG C, so as to react; and finally preparing the antireflection film coating liquid: mixing the synthesized template agent and the synthesized silica sol, adding a silane coupling agent to react, and adding a diluent for dilution. By carrying out molecular designing according to the property of the silica sol, the template agent with good consistency with the silica sol is synthesized, so that the development efficiency is improved; and by adding the silane coupling agent, the stability of the antireflection film coating liquid is enhanced, the film forming property of the film coating liquid is improved, and the antireflection rate and dirt resistance of an antireflection film are increased.

The invention relates to the technical field of papermaking, in particular to a side offset paper produced by shell powder and a preparation method thereof. In the side offset paper, high-whiteness hard wood pulp and high-whiteness chemical-mechanical pulp serve as the main material, and meanwhile, shell powder is auxiliary filler for producing the side offset paper; oxidized Cual is added into surface amylopectin to improve the printing surface strength of the side offset paper and avoid the defects of printing hair slip and duslting because of high paper forming ash content; meanwhile, the paper forming printing adaptability and dirty resistance can be obviously improved; and the colorful printing quality of the product is substantially improved.

The invention discloses a self-cleaning antifouling organic-inorganic super-amphiphobic polymer coating which is prepared from the following raw materials: perfluoroalkyl ethanol, methyl isobutyl ketone, HDI trimer, methyl methacrylate, styrene, hydroxyethyl methacrylate, perfluorooctyl methacrylate, benzoyl peroxide, 25-28 parts of methanol silica sol, propylene glycol methyl ether acetate, titanium dioxide, sodium hexametaphosphate, ethyl orthosilicate, vinyl triethoxysilane, an appropriate amount of ammonia water, an appropriate amount of silane coupling agent KH570, an appropriate amount of methyl hydroxyl silicone oil, an appropriate amount of 10% dibutyltin dilaurate, a dispersant, a leveling agent, a defoamer, an appropriate amount of butyl acetate, an appropriate amount of anhydrous ethanol, and an appropriate amount of deionized water. The super-amphiphobic polymer coating provided by the invention is simple and feasible in preparation method, can be firmly combined with a variety of substrates, and has universality, good self-cleaning performance, dirt resistance, scrub resistance, corrosion resistance and other performance, and good application prospects.

The invention discloses a two-dimensional layered composite film and a preparation method and application thereof. The two-dimensional layered composite film comprises a base film; two-dimensional nanosheets which are vertically arranged on the surface of the base film to form a nanosheet layer; and nanospheres which are dispersed among the nanosheet layers. According to the prepared two-dimensional layered composite film, the stability of the layered channel of the film is improved through positive and negative electrostatic assembly, and then the stable nanofiltration separation performance is guaranteed; the size of the layered channel can be effectively regulated and controlled by utilizing the nanospheres with different sizes, so that the film pores can just intercept ions and molecules, the problem of poor molecular ion interception effect when the water flux is large is effectively solved, and the energy consumption in the separation process can be reduced; meanwhile, the hydrophilic nanospheres are introduced to enhance the anti-dirt and antibacterial capabilities, so that the film pollution and film degradation are effectively reduced.

An organic Si-F water-proofing agent is composed of solvent and the organic Si-F resin prepolymer which is prepared from one or more alkyl siloxane coupling agents and hydroxy F-Si oil through catalytic hydrolysis reaction. Its preparing process is also disclosed. Its advantages are high water-proofing effect and high resistance to solvent, acid, alkali and ageing.

The invention relates to a heat exchange system and process of an atmospheric and vacuum distillation unit. Heat exchangers having special structures are adopted, multiple streams of material flow are simultaneously or sequentially subjected to heat exchange with material flow in shell pass, the resistance is reduced, the heat exchange efficiency is high, the temperature difference at a hot end is small, the operation is stable, the fouling resistance is good, the occupation area and investment of equipment are reduced, a heat exchange network is optimized, the temperature of a crude oil heat exchange terminal is increased, the crude oil heat exchange temperature can be increased by 4-5 DEG C under the condition that a heat exchange source is unchanged, and the energy saving and consumption reducing effects are very remarkable.

The invention relates to a porous structure control method for preparing a functional oxide SiO2/TiO2 composite film on a substrate through a low-temperature sol-gel method, and belongs to the field of nanometer function material preparation. Ethyl orhosilicate is adopted as a raw material for preparing SiO2 sol, butyl titanate is adopted as a raw material for preparing TiO2 sol, the two kinds of sol are mixed according to a certain ratio, and the prepared SiO2/TiO2 composite film has abundant regular branch-shaped structures, and by controlling the cross linking reaction among a high-molecular polymer, the SiO2 sol and the TiO2 sol, the porous structure is effectively controlled. The coating is unique in structural design, and the porous structure distributed regularly in a branch shape is shown; the porous structure facilitates water conveying and storage water characteristics, the super-hydrophilic effect and the durability are good, and the self-cleaning function film material is excellent in performance.

The invention provides a UHPC stone-like outer wall hanging plate. The UHPC stone-like outer wall hanging plate comprises a first decorating layer, a second decorating layer and a structural layer which are sequentially arranged in a laminated mode, and are all made of UHPC mortar; the first decorating layer and the second decorating layer are different in color RGB value; and the surface of the second decorating layer is partially exposed out of the surface of the first decorating layer. The invention further provides a manufacturing process of the UHPC stone-like outer wall hanging plate. The manufacturing process comprises the following steps: S1, material blending is conducted; S2, first decorative layer slurry is poured; S3, second decorative layer slurry is poured; S4, structural layer slurry is poured and vibrated; S5, curing and forming is carried out; and S6, demolding is carried out, and treatment of one or a combination of two or more of shot blasting, chiseling, hammering,mincing and burning stripping is carried out. According to the technical scheme, the UHPA outer wall hanging plate adopts a double-decorative-layer structure form, inorganic pigments with different colors or different proportions are added, so that the tones of the two decorative layers are inconsistent, and various decorative effects can be provided for buildings.

The invention relates to the technical field of pattern processing and discloses a method of forming a double-color double-texture PVD film layer on a metal substrate and the metal substrate obtainedthereby. The method comprises the following steps: (1) carrying out primary PVD coating treatment on the metal substrate to form a bottom film layer and a top film layer different in color on the metal substrate; (2) designing a needed pattern on the top film layer, and coating shielding printing ink to the pattern region to be cured; (3) carrying out sand blasting treatment on the substrate obtained in the step (2); (4) removing the top film layer exposed in a non-pattern region; and (5) removing the shielding printing ink cured in the pattern region. The method can plate the double-color double-texture PVD film layer on the metal substrate at one time within a same furnace body without a film exploding phenomena, so that the PVD coating step is reduced, the time is shortened greatly, thecost is lowered, and the product yield is increased obviously.

The invention provides ternary peroxide fluororubber and a preparation method thereof, and an intelligent wearable material and a preparation method thereof. The invention aims to solve the technicalproblem that wrist strap and watchband materials in the prior art cannot well meet requirements for swimming pool water resistance, sweat resistance, artificial sebum resistance, oleic acid resistanceand dirt resistance required by intelligent wearable wrist straps and watchbands at the same time. According to the preparation of fluororubber in the invention, iodine is used as a crosslinking active point, iodine used as the crosslinking active point is bonded to the tail end of a fluororubber polymer molecular chain or the tail end of a side chain of a vulcanization point monomer, and vulcanization crosslinking can be easily carried out with peroxide. A polymer prepared in the invention is used for preparing the intelligent wearable material. The prepared intelligent wearable wrist strapmaterial or watchband material can meet the requirements for swimming pool water resistance, sweat resistance, artificial sebum resistance, oleic acid resistance and dirt resistance, and a intelligentwearable wrist strap or watchband prepared from the material is safe, environmentally-friendly and durable to use, soft in hand feeling, good in texture and comfortable in somatosensory feeling and can better meet the high technical requirement for continuous changing of the material for the intelligent wearable wrist strap or watchband.

A glistening glaze for glass mosaic is disclosed, and includes following raw materials by mass: 70-80 parts of glass powder, 10-20 parts of low-temperature glass frit, 5-10 parts of high-temperature glistening powder, 0-10 parts of a stabilizer, 0.2-0.8 part of a binder and water. The fineness of the glistening glaze is 200-250 meshes. According to a technical scheme, the low-temperature glass frit and the high-temperature glistening powder are blended according to a certain ratio, a melting temperature difference between the low-temperature glass frit having a low softening temperature and the high-temperature glistening powder having a high melting temperature is utilized, the fineness of powder materials is controlled to be 200-250 meshes, finally a certain amount of the stabilizer, thebinder and the water are added, and the mixture is ground to obtain the low-temperature glaze that can be applied onto a glass mosaic surface. After the glaze is applied onto the glass mosaic surfaceto form a glaze layer and low-temperature firing is performed, the glaze layer on the glass mosaic surface has fine, smooth and glistening decorative effects, and has good stain resistance and betterapplicability.