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3177results about How to "Good stability" patented technology

Capping layer for extreme low dielectric constant films

Specific embodiments of the invention provide a silicon-carbide-type or silicon oxycarbide (also often called carbon-doped-oxide [CDO] or organosilicate glass) capping material and method for depositing this capping material on ELK films which are used as a dielectric material in integrated circuits. The ELK film may include any ELK film including but not limited to inorganic, organic and hybrid dielectric materials and their respective porous versions. The silicon-carbide-type material may be an amorphous silicon carbide type material such as the commercially available BLOk™ material, or a carbon-doped oxide material such as the commercially available Black Diamond™ both of which are developed by Applied Materials of Santa Clara, Calif. The amorphous silicon carbide (a-SiC) material is deposited using a plasma process in a non-oxidizing environment and the CDO-type material is deposited using an oxygen-starved plasma process. The non-oxidative or oxygen-starved plasma processes do not significantly degrade the underlying film's chemical and electrical properties. The CDO material offers the advantageous property of having a lower dielectric constant value of less than 3.5 as opposed to the a-SiC material which has a dielectric constant of approximately 4.5. The CDO material besides, having a lower dielectric constant also has a superior adhesion characteristics to the underlying ELK material. However, experiments have indicated that despite its higher dielectric constant, the a-SiC-type material (e.g. BLOk™) may be used to generate capped ELK films with similar or even reduced dielectric constants relative to lower k capped films, and may provide composite (i.e. ELK+cap) structures exhibiting superior k stability.

Nano Anticancer Micelles of Vinca Alkaloids Entrapped in Polyethylene Glycolylated Phospholipids

The present invention provides a nano-micellar preparation containing vinca alkaloids antitumor agent for intravenous injection, which cincludes a therapeutically effective amount of vinca alkaloids antitumor agent (vinblastine, vincristine, vindesine and vinorelbine), a phosphatide derivatized with polyethylene glycol, together with pharmaceutically acceptable adjuvants. The preparation is prepared by encapsulating the medicament with a nano-micelle to obtain the nano-micellar preparation containing vinca alkaloids antitumor agent for injection. The vinca alkaloids antitumor agent and the phosphatide derivatized with polyethylene glycol form a nano-micelle with a highly uniform particle size. In the micelle, the hydrophobic core of encapsulated medicament is surrounded by polyethylene glycol molecules to form a hydrophilic protective layer, so that the medicament is prevented from contacting with the enzymes and other protein molecules in blood and being recognized and phagocytozed by reticuloendothelial system in body, and the circulation time in vivo of the micelle is prolonged.

Graphene conductive slurry as well as preparation method and application method of graphene conductive slurry

The invention belongs to the technical field of graphene materials. Graphene conductive slurry is prepared from the following raw materials in parts by weight: 0.5 to 15.0 weight percent of oligegraphene, 0.1 to 0.5 weight percent of a dispersant, 80 to 99.4 weight percent of a diluent and 10 to 40 weight percent of organic resin. According to the graphene conductive slurry disclosed by the invention, by screening the dispersant in the early stage, the graphene can be more easily dispersed in the diluent during a mixing process of graphene powder and the diluent, and an obtained dispersion solution is good in stability; by adding the selected dispersant and using a technology adopted by the invention, stripping of the graphene in the diluent can be promoted; in the graphene conductive slurry, a part of solvent is replaced with a part of resin, so that the solid content of the graphene conductive slurry is increased, the stability of the graphene conductive slurry is increased, re-overlaying of the graphene is prevented, and very good compatibility is also provided for application in the late. The graphene conductive slurry which is good in performance and high in stability can be prepared, the cost is low, the technology is feasible, and the graphene conductive slurry is suitable for industrial production.

Screw-driven lifting platform

A screw-driven lifting platform, includes a lifting portion and a transmitting portion, which is characterized in comprising a base, a left-and-right screw thread rod, a left and a right group (two group in total) of X-shaped connecting rods and a horizontal lifting platform, wherein two groups (a left group and a right group) of the X-shaped connecting rods are respectively provided on left and right end portions between the base and the horizontal lifting platform, fixed ends of the X-shaped connecting rod are respectively hinged on the base and the horizontal lifting platform, movable ends of the X-shaped connecting rod are connected with the left-and-right screw thread rod, when the left-and-right screw thread rod rotates, the movable ends of the left and right groups of the X-shaped connecting rod are driven to move, so as to realize lifting and lowering the horizontal lifting platform.

Alumina supporter and preparation method thereof

The invention provides an aluminum oxide carrier and a preparation method thereof. The aluminum oxide carrier takes a mixture prepared by mixing pseudo-boehmite powder prepared by the carbonization method and pseudo-boehmite powder prepared by the aluminum sulfate method according to a weight proportion of 1:0.1 to 5 as a precursor and a complex acid as a peptizing agent; substances such as zirconium, titanium, silicon, alkali metals, alkaline-earth metals, rare-earth metals, carbon black, and the like, are added during kneading process; then the aluminum oxide carrier is obtained after forming, drying and roasting. The physical properties of the carrier are as follows: pore volume is 0.4 to 1.2ml / g; specific surface area is 180 to 370m<2> / g; pores with the diameter being more than 100nm accounts for more than 90 percent of total pore volume; the amount of B acid is 0.1 to 0.3mmol / g; the amount of L acid is 0.2 to 0.5mmol / g. The carrier is especially applicable to the preparation of 1, 4-butanediol catalysts in the two-stage hydrogenation catalytic synthesis of 1, 4-butynediol.

Thermal insulation and water proof integrated system of roof covering and construction method thereof

ActiveCN101311456AGood matching and bonding performanceGood stabilityBuild-up roofsThermal insulationIntegrated systems
The invention provides an integral system integrated with roof heat preservation and water resistance and a construction method thereof. The construction method is as follows: cleaning the substrate, and having slope-making or leveling treatment for needed roof; preparing polymer cement waterproof mortar scraped on the roof substrate as a first waterproof layer with the thickness of 2 to 5 mm; preparing rubber powder poly-phenyl granule cement mortar scraped on the first waterproof layer as an insulating layer with the thickness of 20 to 50 mm; preparing polymer cement waterproof mortar scraped on the insulating layer as a second waterproof layer with the thickness of 2 to 5 mm; preparing polymer cement anti-crack mortar scraped on the second waterproof layer, paving alkali-proof glass fiber gridding cloth, and then scraping the polymer cement anti-crack mortar once as a protective layer, and the thickness of each polymer cement anti-crack mortar is 1 to 2 mm. The roof substrate, the polymer cement waterproof mortar and the polymer cement anti-crack mortar are taken as cement base materials, and materials of cement, sand, and the like are also contained in rubber powder poly-phenyl granule insulating mortar, so the base material, the waterproof layer, the insulating layer and the protective layer have fine matching and bonding performances and perfect system stability.

Preparation method of styrene-acrylate copolymer emulsion used in antirust paint

InactiveCN102199240AGood stabilityEmulsion particle size is smallAnti-corrosive paintsFunctional monomerIon
The invention relates to a novel method for preparing a styrene-acrylate copolymer emulsion used in antirust primer paint. The method comprises steps that: (1) phosphate ester functional monomers are subject to a polymerization reaction; two hydroxyl groups of each phosphate ester group are subject to a chelation reaction on the metal surface, such that a dense phosphate ester (salt) protective film is formed on the metal surface, and water molecules and other salt ions are prevented from contacting the metal; the introduced phosphate ester group assists in improving the adhesion of painted coatings on metal surfaces, and in improving the antirust capacity of the painted coatings; (2) diacetone acrylamide (DAAM) and adipic dihydrazide (ADH) form a cross-linking system of the antirust emulsion; hydrazine groups in hydrazino-(NH2-NH2) and ketone groups in the DAAM (C=O) are subject to a dehydration condensation reaction, wherein the ketone groups are copolymerized on the copolymer; through outer cross-linking, a emulsion film with a three-dimensional reticular structure is obtained; (3) an emulsifying system is formed by combining a reactive anion emulsifier and a non-ion emulsifier, such that problems of emulsion deposition and gelling are solved. With the method provided by the invention, an aqueous emulsion with a high solid content is prepared, and water resistance and weathering resistance of the antirust paint is improved.

Digital inkjet thermal transfer printing water-based ink for textiles and preparation method of ink

The invention discloses digital inkjet thermal transfer printing water-based ink for textiles and preparation method of the ink. The ink comprises the following raw materials in mass ratio: 5-15 parts of disperse dye, 5-10 parts of a dispersing agent, 0.1-0.5 part of a wetting agent, 5-25 parts of a cosolvent, 0.02-0.05 part of a preservative, 0.1-0.3 part of an antifoaming agent and 50-70 parts of deionized water. The digital inkjet thermal transfer printing water-based ink is prepared by using a method of effectively dispersing the disperse dye via a dispersing system and carrying out combined dispersion via a mechanical sand grinder and an ultrahigh-pressure homogenizer, and is suitable for the thermal transfer printing of textiles and the thermal transfer printing of plate materials such as aluminum plates coated with polyester; and the prepared water-based ink has the advantages of small particle size, uniformity in distribution, good stability, no nozzle blocking, rapidness in drying, bright color, clear patterns, high transfer rate, low cost and the like.

Aerated products with reduced creaming

A flowable aerated composition is provided which comprises hydrophobin and a yield stress agent, the composition having a continuous phase viscosity, measured at a shear rate of 10 s−1, of from 0.01 to 2000 Pa s, and a continuous phase apparent yield stress of at least 4 Pa.

High-speed rotation testing machine and method for testing high-speed rotation strength performance of rotor

InactiveCN103604587ALarge single bearing capacityGood stabilityMachine part testingTest objectDrive motor
The invention discloses a high-speed rotation testing machine and a method for testing the high-speed rotation strength performance of a rotor. The high-speed rotation testing machine comprises a test cavity, a rotor system which is accommodated in the test cavity and used for testing the test rotor, a driving system that drives the rotor system and a rotating speed control system that controls the rotating speed of the rotor system, wherein the driving system includes a driving motor and a speeder which is connected with the driving motor and drives the rotor system to rotate at a high speed, the rotor system includes a test rotor fixed part, a main shaft connected with the test rotor fixed part and driven to rotate by the speeder, and a damper which is sleeved outside the main shaft and supports the main shaft, the test cavity is equipped with a vacuumizing opening, a plurality of layers of containing rings is arranged in the test cavity and surround the rotor system, and the containing rings are connected through spacing blocks arranged at tail ends of the containing rings. The high-speed rotation testing machine uses a high-speed rotating rotor as a test object, the rotor is speeded up through the speeder system, the working condition of the rotor in high-speed rotation is simulated, and the performance requirement of high speed centrifugal load effect resistance of the rotor is tested.

Method for performing induced synthesis on MOFs (metal-organic frameworks) membrane by implanting homologous metal oxide particles into surface of macroporous carrier by virtue of swabbing process

The invention provides a method for performing induced synthesis on a stable MOFs (metal-organic frameworks) membrane by implanting homologous metal oxide particles into the surface of a macroporous carrier by virtue of a simple swabbing process, belonging to the field of new materials, and relating to a method for preparing the corresponding stable MOFs membrane by swabbing homologous metal oxide powder, introducing a growth crystal seed and a fixed connecting point for synthesizing the MOFs membrane on the surface of the macroporous carrier, and then performing induced growth. The method is characterized by comprising the following steps: introducing the homologous metal oxide powder into the surface of a macroporous plate-type or tubular carrier in advance by using the simple swabbing process, and then performing solvothermal growth to prepare continuous and dense MOFs membranes. The method provided by the invention has the effects and advantages that a universal method for preparing the MOFs membrane by using the macroporous carrier is provided, and the method is simple to operate in a preparation process, is high in repeatability and good in membrane stability, is suitable for amplified large-scale application, and has important industrial application values.

Preparation method of biocompatible aqueous phase quantum point

The invention discloses a method for preparing a biocompatible aqueous quantum dot. The method comprises the following steps: a high-quality quantum dot and a nucleocapsid structure thereof are prepared; a surface modification technology is combined; the nucleocapsid structure is utilized to improve the stability of the quantum dot; through mutual action of intermolecular force, an organic molecular chain on the surface of the quantum dot is changed; an organic molecule of a long chain on the surface of an oil-phase quantum dot is changed into a small molecule which contains sulfhydryl and carboxyl or amidocyanogen and has biocompatibility and is water-soluble or a derivative of a large biological molecule; and finally, the biocompatible aqueous quantum dot which can be directly dissolved in phosphate buffer and the like is obtained. The method has the advantages: the preparation and surface modification method of the quantum dot are simple and easy to control the quality, the dimension and the surface property of the quantum dot; the obtained aqueous quantum dot has the advantages of higher fluorescent efficiency, even distribution of particle diameter, strong stability and the like; and the aqueous quantum dot prepared by the method can be used for biological detection, medical diagnosis, energy transferring and the like.

Water-soluble (Ultra Violet) curing ink and preparation method thereof

The invention relates to a water-soluble (Ultra Violet) curing ink and a preparation method thereof, and belongs to the technical field of environmental protection ink. The water-soluble UV curing ink comprises the following components by mass percent: 60 to 85% of silica sol modified water-soluble urethane acrylate prepolymer, 1 to 10% of photoinitiator, 5 to 15% of pigment, 5 to 20% of solvent and 0 to 1% of assistant. The water-soluble UV curing ink is environment-friendly, nontoxic, fast in curing rate, high in stability, excellent in ageing resistance and solvent resistance, outstanding in adhesive force and wear resistance and suitable for a plurality of printing modes, meets the production requirement, and can be widely applied to the surfaces of printing materials such as paper materials, wood materials, plastics, metals and glass.
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