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89results about How to "Act as an adhesive" patented technology

Magnesium aluminate spinel enhanced magnesia-based foamed ceramic filter and preparation method thereof

The invention discloses a magnesium aluminate spinel enhanced magnesia-based foamed ceramic filter with capability of realizing sintering at low temperature, excellent chemical stability and excellentthermal shock resistant performance, and a preparation method thereof. The preparation method comprises the following steps that (1) 10 to 20 percent of nanometer alumina sol, 0.8 to 1.5 percent of rheological agents and the balance of magnesium oxide ceramic powder containing a nanometer aluminum oxide sintering aid are proportioned; deionized water is added; ball milling and uniform mixing areperformed; then, through vacuum exhaust, ceramic slurry with the solid content being 60 to 70 percent is prepared; (2) a polyurethane foamed plastic template is soaked into the ceramic slurry; the polyurethane foamed plastic template is extruded through a roller press for removing the redundant leaching hanging slurry; then, biscuit is prepared; then, the biscuit is heated to 80 to 120 DEG C for drying; (3) the dried biscuit is put into a sintering furnace; the temperature is raised to 1400 to 1600 DEG C; high-temperature sintering is performed; cooling is performed along with the furnace to room temperature; the magnesia-based foamed ceramic filter is obtained.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Silver nanowire transparent conductive thin film and preparation method thereof

The present invention provides a silver nanowire transparent conductive thin film and a preparation method thereof. The silver nanowire transparent conductive thin film comprises a substrate as well as a silver nanowire coating and a titanium oxide coating sequentially covering the substrate; and the titanium oxide coating and silver in the silver nanowire layer form a structure similar to Ag-Ti alloy valence bond. According to the silver nanowire transparent conductive thin film and the preparation method thereof, the titanium oxide layer (TiOx) is introduced, and the titanium oxide layer and the silver in the silver nanowire layer form the structure similar to the Ag-Ti alloy valence bond, and therefore, on the one hand, electrical effective connections between silver nanowires can be enhanced, and the functions of a binder are realized, and the uniformity of the electric conduction of the transparent conductive thin film can be increased, and on the other hand, the optical transmittance of the TiOx layer is excellent, the transmittance of the thin film will not be decreased significantly; and the TiOx layer can protect the silver nanowire transparent conductive film thin from being oxidized, so that the stability of the thin film can be improved.
Owner:SHAANXI COAL & CHEM TECH INST

Lithium battery current collector and preparation method thereof

The invention discloses a lithium battery current collector and a preparation method thereof. The lithium battery current collector comprises a metal foil and a chelating agent layer which is coated on at least one surface of the metal foil; the specific preparation method of the novel current collector comprises the following steps of dispersing the chelating agent in a solvent to prepare a chelating agent dispersion liquid, and then coating the dispersion liquid on at least one surface of the metal foil, and carrying out heat treatment to prepare the novel lithium battery current collector;the chelating agent has a carboxyl group, an amino group and other functional groups, and can interact with a carboxyl group or a hydroxyl functional group on the surface of a binder and the surface of an active substance, and meanwhile, a relatively strong complexting effect is achieved between the chelating agent and the foil material metal surface (residual metal ions), so that the effect of the binder is achieved; a small amount of chelating agent is coated on the surface of the metal foil, so that the bonding force between the electrode slurry and the current collector foil can be greatlyimproved, and the cycle life and the rate performance of the battery can be prolonged and improved under the condition that the energy density of the battery is kept unchanged.
Owner:SHAANXI COAL & CHEM TECH INST

Basic magnesium sulfate whisker in-situ synthesized magnesium-aluminum spinel reinforced magnesium oxide based foamed ceramic filter and preparation method thereof

The invention discloses a basic magnesium sulfate whisker in-situ synthesized magnesium-aluminum spinel reinforced magnesium oxide based foamed ceramic filter that can realize sintering at lower temperature and has excellent chemical stability and thermal shock resistance and a preparation method thereof. The preparation method comprises the steps of: (1) by mass percentage, blending 15%-25% of nano-aluminum sol, 0.8%-1.5% of a rheological agent, and the balance magnesium oxide ceramic powder containing basic magnesium sulfate whisker, adding anhydrous ethanol, performing ball-milling and uniform mixing to obtain a ceramic slurry with a solid content of 60%-70%; (2) immersing a polyurethane foam plastic template into the ceramic slurry, extruding the polyurethane foam plastic template by aroller press to remove redundant hung slurry for making a green body, then removing an ethanol solvent in a 40DEG C-50DEG C ventilation room, and drying the green body; and (3) putting the dried green body into a sintering furnace, performing heating to 1350DEG C-1550DEG C for high temperature sintering, and conducting furnace cooling to room temperature, thus obtaining the magnesium oxide basedfoamed ceramic filter.
Owner:FENGYANG L S NET FORMING CO LTD +1

Thermoplastic polyurethane elastomer and preparation method thereof

The invention discloses a thermoplastic polyurethane elastomer and a preparation method thereof. The thermoplastic polyurethane elastomer is prepared from the following components in parts by weight:22 to 45 parts of diisocyanate, 45 to 63 parts of polyester polyol, 5 to 12 parts of chain extender, 2 to 5 parts of anti-aging agent, 20 to 28 parts of EPDM (ethylene-propylene-diene monomer), 10 to17 parts of elastic modifying group, 2 to 4 parts of white carbon black, 1 to 6 parts of vinyl silicone oil, and 3 to 5 parts of crosslinking agent, wherein the number-average molecular weight of theEPDM is 150000 to 200000, and the Mooney viscosity ML+4 is 48 at the temperature of 125 DEG C. The preparation method comprises the following steps of mixing and stirring the components for 1 to 2h; uniformly mixing the pre-stirred mixture, ash antimony powder and vulcanized nickel power mixture, and anti-cracking fiber group, adding into a double-screw extruder for extruding, and granulating, soas to obtain the thermoplastic elastomer. The thermoplastic polyurethane elastomer has the advantages that the anti-abrasion property, tensile strength and anti-tearing property are excellent; the thermoplastic polyurethane elastomer is suitable for meeting different working environment requirements; the effective resistance to scratch and damage of the product is improved, and the service life ofthe product is prolonged.
Owner:SHANGHAI JIANQIAO PLASTIC CO LTD

Zirconium dioxide short fiber and basic magnesium sulfate whisker composite enhanced magnesia-based crucible and preparation method thereof

The invention discloses a preparation method of a zirconium dioxide short fiber and basic magnesium sulfate whisker composite enhanced magnesia-based crucible which can be sintered at the low temperature and has excellent chemical stability and thermal shock resistance. The method comprises steps as follows: (1) 15%-25% of nano aluminum sol, 0.8%-1.5% of a rheological agent and the balance of fused magnesia ceramic powder containing nano lanthanum oxide, zirconium dioxide short fiber and basic magnesium sulfate whisker are prepared in percentage by mass, deionized water is added, the mixture is subjected to ball milling and mixed uniformly, then, vacuum exhausting is performed, and ceramic slurry with the solid content of 70%-80% is prepared; (2) a crucible biscuit is prepared; (3) the dried biscuit is put in a sintering furnace to be sintered at the high temperature and then cooled with the furnace, and a magnesia-based crucible blank is obtained; (4) the magnesia-based crucible blankis subjected to vacuum impregnation treatment in aluminum sol, then, surface polishing treatment is performed, high-temperature secondary sintering is performed after drying, a product is cooled withthe furnace to the room temperature, and the magnesia-based crucible is obtained.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Preparation method of high-strength protective fabric with quantitative tension

The invention discloses a preparation method of a high-strength protective fabric with quantitative tension. The preparation method comprises the following steps of 1, taking bamboo pulp fiber and flax fiber, putting the bamboo pulp fiber and the flax fiber into a 10 g/L sodium periodate solution, and oxidizing for 1 h in a dark place at 40 DEG C to obtain oxidized bamboo fiber, wherein the mass ratio of the bamboo pulp fiber to the flax fiber to the sodium periodate solution is 1: 1: 4; and 2, putting the oxidized bamboo pulp and flax fiber into a 0.1 mol/L lycerol solution to be soaked for 30 min, then washing the soaked oxidized bamboo pulp and flax fiber with 100 g of deionized water for 3-5 times, and drying to obtain the oxidized bamboo pulp and flax fiber. According to the preparation method, the bamboo pulp fiber has a long fiber mesoporous structure, has many pores, has strong air permeability, hygroscopicity and wear resistance, can rapidly absorb sweat steam discharged by ahuman body and discharge the sweat steam to the outside, adjusts the microclimate between clothes and the human body and improves the comfort; and in addition, the flax fiber is added, the advantage that flax cloth is high fiber strength and not prone to being worn is used for improving the mechanical property of the textile fabric, and meanwhile, the higher tensile property is also ensured.
Owner:FUJIAN CHANGLE CITY CHANGYUAN TEXTILE
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