35results about How to "Increased micro-roughness" patented technology

The invention relates to a method for dyeing an aromatic polyimide fiber with a disperse dye. The method comprises the following steps: putting the aromatic polyimide fiber into a solution formed by a degreaser, wherein the bath ratio is 1 to (70-120), processing at 50-70 DEG C for 50-70 minutes, cleaning and putting into 2-40g / L of alkali liquor, wherein the bath ratio is 1 to (70-120), processing at 70-90 DEG C for 5-15 minutes, washing and drying; and (2), putting the aromatic polyimide fiber obtained from the step (1) into a working liquid at a room temperature, heating to 120-150 DEG C, carrying out heat preservation for 30-60 minutes, cooling to 60 DEG C and washing. The disperse dye is hardly dissolved into water, and is difficult to fall off from the fiber after entering the fiber, so that the fastness of the dyed fiber is excellent; the aromatic polyimide fiber dyed by the method is dark in color, and high in dyeing fastness; and the method simple in process and relatively low in processing cost, and has good industrial application value.

A stress-reduced reflective optical element for a working wavelength in the soft X-ray and extreme ultraviolet wavelength range includes a first multilayer system (4) of at least two alternating materials (41, 42) having different real parts of the refractive index at the working wavelength on a substrate (2), which exerts a layer stress on the substrate (2), and comprising a second multilayer system (6) of at least two alternating materials (61, 62) on a substrate (2), which exerts an opposed layer stress on the substrate (2) and is arranged between the first multilayer system (4) and the substrate (2), wherein a first (61) of the at least two materials of the second multilayer system (6) is interrupted by layers (62) having a thickness of up to 1 nm of the at least one further material of the second multilayer system (6) at such distances that the first material is present in an amorphous state.

The invention discloses a low-luster aqueous polyurethane dispersion for leather, and a preparation method and an application thereof. The preparation method comprises the following steps: dehydrating aliphatic polymeric diol and dihydroxymethylpropionic acid, cooling to 60-80DEG C, and adding an organic bismuth catalyst and diisocyanate for a prepolymerization reaction; neutralizing by a neutralizing agent for salt formation; carrying out emulsification and chain extension in a sodium sulfamate chain extender; and completely reacting isocyanate residual in the dispersion with the an added hydrazine chain extender to obtain the aqueous polyurethane dispersion having a solid content of 25-35wt% and an average emulsion particle size of 180-5000nm. A low luster film effect can be obtained through the dispersion. The low luster effect of the polyurethane dispersion is completely generated through a film forming resin, so the polishing resistance of a low luster surface is improved, thereby the dispersion is especially suitable for the formulas of surface mist-surface finishing agents for frequently bent scratched and tensioned vamp leather, clothing leather and automobile interior decorations.

The invention discloses an environment-friendly non-stick pan surface treatment process, which comprises the following steps: 1) forming: forming a microporous layer; 2) scanning a laser on the surface of the pan embryo to form a plurality of microporous structures, thereby forming the microporous layer; Porous layer; 3) Spraying a non-stick coating on the surface of the microporous layer: the non-stick coating is filled in the microporous structure. The invention forms a dense and elongated microporous structure on the surface of the pan by scanning the laser microporous forming technology, thereby forming a microporous layer, which not only doubles the surface area of ​​the pan, but also improves the microscopic roughness of the surface of the pan Degree, and then when the non-stick coating is directly sprayed on the surface of the microporous layer, the coating can be filled into the microporous structure, thereby greatly increasing the contact area between the non-stick coating and the microporous layer, thereby improving the non-stick Coating adhesion.

The invention relates to a novel thermal barrier coating preparation process, which comprises the following steps: forming a metal bonded underlayer on the surface of a substrate; forming an in-situ thermally grown oxide layer (TGO); and forming a ceramic heat-insulating surface layer. The TGO layer is pre-grown before the substrate is put into service. The composition of the TGO layer includes alpha-alumina. In the present invention, a layer of dense and continuous TGO layer mainly composed of α-alumina is preset through large-particle dry ice jet purification and roughening treatment and pre-vacuum argon oxidation treatment. The oxide film will have good resistance to high temperature oxidation, prevent rapid oxidation, reduce the growth rate of TGO layer thickness, and achieve the purpose of reducing the occurrence probability of thermal barrier coating peeling.

The invention relates to a magnesium alloy surface treatment process which comprises the following steps: (1) soaking and coating phosphate film-forming solution on the surface of a magnesium alloy matrix, washing by water and drying to generate a layer of transition films; and (2) externally coating non-chromate Dacromet coating to obtain a protective coating, wherein the phosphate film-forming solution is sn aqueous solution comprising the following components in concentration: 20-45 g / L of phosphoric acid; 2-4.5 g / L of zinc oxide, 1-4.5 g / L of sodium fluoride, 0.5-2 g / L of ammonium fluoride, 0.5-3 g / L of crystallization controlling agent, 0.5-2 g / L of reaction promoting agent and 0.5-2 g / L of anion surface active agent; the crystallization controlling agent is selected from molybdate or rare-earth salt, and the reaction promoting agent is selected from nitrate or chlorate. The corrosion resistance of the processed magnesium alloy surface is effectively improved.

The invention relates to the technical field of hydrophilic glass, and particularly relates to a super-hydrophilic agent. The super-hydrophilic agent is characterize by comprising the following components: 0.08-0.33wt% of tin dioxide nano particles, 2-5wt% of carbon nano tube powder, 0.2-0.8wt% of polyvinyl alcohol, and the balance of a dispersion liquid; and the carbon nano tube powder is a powdery single-walled carbon nano tube or multi-walled carbon nano tube, and the tin dioxide nano particles adhere to the surface of the carbon nano tube. The invention also provides a preparation method for the super-hydrophilic agent and super-hydrophilic vehicle window glass which is provided with a super-hydrophilic coating formed by the super-hydrophilic agent. The super-hydrophilic agent has the advantages of being high in visible light transmittance, being capable of absorbing infrared radiation, and having good super-hydrophilic characteristics under non-illumination conditions.

The invention provides a low-surface-energy material with a micro-nano groove structure as well as a preparation method thereof, and relates to a low-surface-energy material and a preparation method thereof. The technical problems that the existing low-surface-energy material of organic silicon resin has poor adhesive force with a matrix, low solvent resistance and long curing time as well as thelow-surface-energy material of organic fluorine resin is expensive in material and complex in process are solved. The material consists of a component A and a component B which are independently packaged, the component A is a mixture of epoxidized hydroxy-terminated polybutadiene type polyurethane and basalt scale fiber treated by a silane coupling agent, and the component B is a curing agent. Thepreparation method comprises the following steps: 1, preparing epoxidized hydroxy-terminated polybutadiene type polyurethane; 2, treating the basalt scale fiber by the silane coupling agent; and 3, defoaming the epoxidized hydroxy-terminated polybutadiene type polyurethane, adding the basalt scale fiber treated by the silane coupling agent, mixing uniformly to form the component A and independently packaging the component B. The static water contact angle of the material can reach to above 110 degrees and the low-surface-energy material can be applied in the field of corrosion prevention.

The invention provides a method for preparing a super hydrophobic film on the surface of a zinc substrate, which belongs to the technical field of a functional material. The method comprises the following steps of: ultrasonically washing a zinc sheet substrate, blow-drying by nitrogen gas, oxidizing by formamide water solution, and forming a rod-like nanometer zinc oxide array on the surface of a zinc sheet; and modifying by low surface energy substances, namely, stearic acid, 12-hydroxystearic acid and normal dodecyl mercaptan, and forming the super hydrophobic film with high static contact angle and low roll angle on the surface of the zinc sheet substrate. The super hydrophobic film may not be changed after being placed in the air for long time due to better stability and can be used for preventing water, resisting frost, preventing snow and resisting metal corrosion due to better acid and alkali resistance.

The invention discloses a production method of B-containing steel. The method comprises: obtaining a slab containing B-steel; rolling the obtained slab containing B-steel, and controlling the coiling temperature during rolling to 660-700 °C, the slow cooling time in the slow cooling pit is controlled at 24-30 hours, and the temperature at the end of slow cooling is controlled at 250-300 °C; the rolled slab containing B steel is hot stamped. By adopting the production method of the B-containing steel of the present invention, in the hot stamping process, the iron oxide scale is firmly combined with the matrix, the iron oxide scale is not easy to fall off, and the working environment of workers is improved.

The invention relates to a device which can be rotationally displaced about an axis (6) in order to fine and homogenize glass, comprising a receptacle (1) which is used to receive the molten glass that is to be treated; a depressurizing compartment (2) and at least one opening through which the glass can exit (5, 19); also comprising a means for dispatching (7, 8, 17, 18) the molten glass from the feeder receptacle (1 ) to the depressurizing compartment (2). The invention also relates to a method for the production of substrates, implementing the device according to the invention, and substrates produced therewith.