94 results about "Chemical state" patented technology

The invention discloses a method for modification, dyeing and multifunctional composite finishing of aramid fiber, and belongs to the technical field of textile chemical industry. Through surface physical and chemical modification for the aramid fiber, the method improves the physical and chemical states of the aramid fiber surface and is favorable for the dyeing and after finishing of the aramid fiber. The specific process flow comprises the following steps of cleaning before the dyeing of the aramid fiber, pretreatment of the aramid fiber, dyeing of the aramid fiber, and multifunctional composite finishing of the aramid fiber. Not only the dyeing property of the aramid fiber treated by the method is remarkably improved, but also the dyeing fastness is good, the aramid fiber has good moisture permeability particularly, and simultaneously the aramid fiber is endued with good anti-ultraviolet ageing function. Moreover, the aramid fiber is subjected to composite finishing by adopting a nano composite sol, and the method has wide applicability, simple process, relatively low treatment cost, and low requirements on the applied technology and equipment.

An oxidizable metal silicide or metal aluminide is used as one of the outer layers of an optical coating to provide a corrosion and scratch resistant barrier. This layer is initially deposited in an unoxidized or partially oxidized state. In this chemical state it provides corrosion protection to the layers underneath. The metal compound or intermetallic layer has hardness properties greater than most metals and therefore provides significant scratch protection.

Compact, low-power-consuming systems and methods for exposing samples to high-energy radiation, for example, for exposing samples to x-rays for implementing x-ray absorption near edge analysis (XANES). The systems and methods include a low-power-consuming radiation source, such as an x-ray tube; one or more tunable crystal optics for directing and varying the energy of the radiation onto a sample under analysis; and a radiation detecting device, such as an x-ray detector, for detecting radiation emitted by the sample. The one or more tunable crystal optics may be doubly-curved crystal optics. The components of the system may be arranged in a collinear fashion. The disclosed systems and methods are particularly applicable to XANES analysis, for example, XANES analysis of the chemical state of chromium or another transition metal in biological processes.

The invention discloses a method for preparing a silicon-nitride ceramic substrate through silicon-powder tape casting, and belongs to the technical field of insulation substrates. The method includes the steps that silicon powder and an inorganic burning-assisting additive serve as raw materials, castor oil serves as a dispersing agent, and polyvinyl butyral serves as a binding agent; according to the chemical state and the particle size of the surface of the silicon powder, a plasticizer capable of allowing the silicon powder to be subjected to tape casting is added, and a large-area green blank which is adjustable in thickness, smooth in surface and free of crack and pore is prepared; the green blank is subjected to rubber discharging to be sintered at the high temperature, and the silicon-nitride ceramic substrate with the heat conductivity larger than 50 W.m<-1>.K<-1>, the bending strength larger than 600 MPa and the fracture toughness larger than 8 MPa.m<1/2>is prepared.

The invention relates to a honeycomb core end surface gridding sizing process method based on adhesive film thermal fracture. The honeycomb core end surface gridding sizing process method comprises the following steps of: tensioning the end surface of a honeycomb core by designing a special tool; instantly heating the upper surface of the adhesive film which is flat adhered to the end surface of the honeycomb core by adopting a linear type heating device and a heat air blowing device so that the upper surface of the adhesive film is heated to be softened and inwards recessed into a honeycomb core grid under the action of gravity; reversely exerting high-pressure heat air on the adhesive film along the axial direction of the honeycomb core grid so that the adhesive film is expanded, fractured, shrunk and uniformly collected on the end surface of the seamed edge of the honeycomb core grid, and thus the direct transformation of an adhesive from an adhesive film state to a honeycomb gridding state is realized. The honeycomb core end surface gridding sizing process disclosed by the invention realizes the large-area, one-time, uniform and gridding sizing of the end surface of the honeycomb core by carrying out synchronous and horizontal heating/blowing scanning on the honeycomb core/adhesive film and sufficiently utilizing the advantage of uniformity of the surface density of the structural adhesive film and meets the requirements for small chemical state change and uniform physical distribution state of the large-area honeycomb core gridding sizing on the adhesive.

The invention provides a preparation method of a nitrogen doped carbon based quantum dot. According to the method, a cheap carbon source and nitrogen source are directly mixed, and then the mixture is carbonized by microwaves to prepare nitrogen doped carbon based quantum dots. In the prepared nitrogen doped carbon base quantum dot, nitrogen exists on the surface and skeleton structure of carbon based quantum dot in four chemical states: amino group, pyridine, pyrrole, and nitrogen-containing four-membered ring; furthermore, nitrogen chemical state relative contents and optical characteristics are adjustable; the prepared nitrogen doped carbon based quantum dot has the advantages of high fluorescence radiation efficiency and good catalytic effect, and the performance of the quantum dot can be further improved through modification, and the modified quantum dot can be applied to the fields such as catalysis, and the like. Moreover, in the preparation process, the nitrogen source and carbon source are directly mixed and carbonized, no wave absorbing material is needed, and the whole preparation process is simple and quick. The obtained carbon based quantum dot is insoluble in water, so the separation and purification of carbon based quantum dot can be completed in a short time, the yield is high, and the preparation method has an important meaning for production, application, and promotion of carbon based quantum dot.

[Task] The invention enables uniformly etching a surface of a sample with an improved repeatability, and etching at a low cost without requiring any large-scale equipment.

[Means for Solving the Problem] In an electron spectroscopy analytical apparatus (1) for executing an analysis of a composition, a chemical state and the like of a surface of a sample (4) or in a depth direction thereof by irradiating an X-ray to the sample (4) from a high-energy particle irradiating unit (6) within a vacuum chamber (2) under a vacuum atmosphere, and detecting a kinetic energy of electrons emitted from the sample (4) by an electric energy analyzer (7) on the basis of a photoelectric effect, the surface of the sample (4) is ion-etched by irradiating a fullerene ion beam to the surface of the sample (4) from an ion gun (8) before irradiating the high-energy particle to the sample (4).

The invention provides a perovskite cell based on a novel composite electronic transmission layer and a preparation method thereof and relates to the perovskite solar energy cell field. The perovskite cell comprises a substrate material, a transparent electrode, an electronic transmission layer, a perovskite light absorption layer, a cavity transmission layer and a counter electrode, wherein the novel composite electronic transmission layer can realize more reasonable energy level matching with the perovskite light absorption layer through the composite metal oxide composed of metal elements having different electronegativities by changing proportions of the metal elements having the different electronegativities and adjusting chemical states of the elements and electronic structures and energy level distribution of the electronic transmission layer, and photoelectron efficiency of separated collected perovskite is improved. The perovskite cell is advantaged in that the preparation process is simple and effective, the effect is obvious, efficiency of the prepared perovskite cell is improved to 18.26% from 15.10%, and the perovskite cell has application prospects.

The invention discloses a method for modifying hydrophility of plasmons at the surface of fluorine and silicon hard corneal contact lens, which mainly comprises the following steps: processing the surface of the contact lens with low-temperature plasmons, thus improving hydrophility of the contact lens; the hydrophilic modification at the surface of the contact lens is conducive to reducing deposition of protein and lipid at the surface of the contact lens, improving wearing comfort and lengthening wearing time of the contact lens.The adopted gas is non-reactive inert gases such as O2, Ar and N2 and the like; plasma frequency is 40kHz, power is 50-150W, processing time is 30-150s.The change of the chemical state of silicon at the surface of the hard corneal contact lens is the main reason behind improvement of hydrophility.The method for modifying the surface of the hard corneal contact lens features simple process and equipment, no need of other chemical reagents, energy conversation and environmental protection, thus enjoying good application prospect and scientific significance.

The invention provides a liquid metal computer. The computer comprises a logic device which achieves the computer frame structure in a combined mode, and the logic device is a flexible device and mainly comprises liquid metal, flexible thin films and control components; the computer mainly uses the electroconductivity difference of the liquid metal in different physical or chemical states as the states of 0 and 1 of a logic operation, then logic units are constructed through combinations of multiple liquid metal components, and the programming calculation function of the computer is finally achieved; regulating methods of liquid metal conductive states comprise a solid-liquid phase change method, a current regulating oxide film method and a magnetic field environment controlling method. The invention further provides computer construction schemes, wherein the first scheme is that multiple liquid metal components are used for forming basic logic elements; the second scheme is that new circuit construction modes are combined with conventional electronic elements, and the liquid metal is used as connection switches of the electronic elements; the third scheme is that multiple basic elements are combined to construct an analogue computer.

The invention generally relates to a system used for monitoring a chemical state in the semiconductor industry and an application method of the system, more precisely, the invention aims to provide a chemical monitoring warning system and a method for monitoring chemical application amount or stock amount using the same; prewarning upper and lower limit thresholds and a dynamic stock amount prewarning threshold of chemical dynamic application amount are set according to history data, thereby realizing in-time effective prewarning of abnormal application amount and stock amount. The system andthe method provided by the invention have significant meaning on that the chemical management efficiency of high technology manufacturing such as semiconductor manufacture, liquid crystal panel manufacture, solar manufacture and the like are improved, chemical supply risk is reduced, and product line safe and normal production is ensured.

The present invention discloses one kind of amendment for regulating the structure and physical and chemical state of saline-alkali soil and its preparation process. The amendment consists of polymaleic acid 0.1-20 weigh portions, citric acid 0.5-35 weigh portions, sodium dodecyl benzene sulfonate 1.0-15 weigh portions, ammonium sulfate 1.0-8 weigh portions, and trace elements 0.1-8 weigh portions mainly. It can regulate the structure and physical and chemical state of saline-alkali soil effectively, eliminate the toxic action of salt and alkali to crop fast and make plant grow normally in saline-alkali soil.

There is provided a method for producing a field effect semiconductor device, e.g., a field effect transistor 6 using carbon nanotubes in a channel layer 5, wherein the method includes the step of subjecting the carbon nanotubes to plasma treatment to change a physical or chemical state of the carbon nanotubes. Thus, there can be provided a method which is advantageous in that the method easily produces a field effect semiconductor device which has a current path, e.g., a channel layer, having carbon nanotubes uniformly dispersed therein, and which is prevented from suffering deterioration of the device characteristics due to the formation of bundles of carbon nanotubes.

The present invention provides self-contained systems, apparatus and methods for determining a chemical state, the system includes a stationary cartridge for performing the assay therein, the cartridge adapted to house at least one reagent adapted to react with a sample; and at least one reporter functionality adapted to report a reaction of the at least one reagent with the sample to report a result of the assay, a mechanical controller including a first urging means adapted to apply a force externally onto the cartridge to release the at least one reagent; and at least one second urging means adapted to apply a removable force to induce fluidic movement in a first direction in the cartridge and upon removal of the force causing fluidic movement in an opposite direction to the first direction, an optical reader adapted to detect the reaction and a processor adapted to receive data from the optical reader and to process the data to determine said chemical state.

The present invention provides self-contained systems for performing an assay for determining a chemical state, the system including a stationary cartridge for performing the assay therein, at least one reagent adapted to react with a sample; and at least one reporter functionality adapted to report a reaction of the at least one reagent with said sample to report a result of the assay, wherein the at least one reagent, the sample and the at least one reporter functionality are contained within the cartridge.

The invention discloses a knittable resistance sensor used for a composite and a processing method thereof. The resistance sensor is composed of a glass fiber bundle and a CNT coating, wherein the CNT coating and the glass fiber bundle are combined together by adopting a dip coating process to form the knittable resistance sensor. The processing method comprises the following three steps: combining the CNT coating and the glass fiber bundle, knitting CNT coating fibers and fiber knitted cloth, and moulding the composite based on the fiber knitted cloth. The sensor can provide a precise and quantitative sensing signal for monitoring various physical and chemical states, comprising resin flow direction, resin front end position, gelation time as well as curing degree and curing rate at any moment, in a composite manufacturing stage; large-area coverage and monitoring on the composite can be realized by knitting multiple sensors in fabric; and the sensor also can provide monitoring on various strains and failure modes in a service stage of the composite.

A solution-based method for attaching metal contacts to molecular films is described. The metal contacts are attached to functional groups on individual molecules in the molecular film. The chemical state of the functional group is controlled to induce electroless metal deposition preferentially at the functional group site. The functionalized molecules may also be patterned on a surface to give spatial control over the location of the metal contacts in a more complex structure. Spatial control is limited only by the ability to pattern the molecular film. To demonstrate the feasibility of this concept, self-assembled monolayers of model, molecular-electronic compounds have been prepared on gold surfaces, and these surfaces were subsequently exposed to electroless deposition plating baths. These samples exhibited selective metal contact attachment, even on patterned surfaces.

The invention discloses a method for modification, moisture transfer, perspiration and finishing of aromatic polyamide fabric, and belongs to the technical field of textile chemical industry. Through physical and chemical modification on the aromatic polyamide fabric, the method improves the physical and the chemical states on the surface of fiber, and facilitates the moisture transfer, the perspiration and the finishing of the aromatic polyamide fabric. The process flow comprises the steps as follows: a, washing and oil removing of the aromatic polyamide fabric; b, pretreatment of the aromatic polyamide fabric; and c, moisture transfer, perspiration and finishing of the aromatic polyamide fabric. The aromatic polyamide fabric treated by the method has good moisture transfer, perspiration, humidity and heat cosiness, and simultaneously has the properties of heat resistance, flame retardancy, lightness and high strength. The method has the advantages that the process is simple, the cost is low, the aromatic polyamide fabric with moisture transfer and perspiration properties can be widely applied to special departments of aviation, space flight, war industry, communications and the like, and can also meet the demands of costume outfit of personnel engaged in fire control, life saving and the like.

The invention provides a production process of an organic fertilizer special for paddy rice and belongs to production processes of organic fertilizers. The organic fertilizer is prepared by mixing rice straws, water hyacinths, shells and animal faces, fermenting the mixture by using biological bacteria at first, then treating by adding earthworms, and finally adding neem tree branches and blumea balsamifera to perform fermentation. According to the production process provided by the invention, the rice straws are adopted as the main raw material for the organic fertilizer special for the paddy rice, and are subjected to a series of treatments by using the biological bacteria and the earthworms to ensure that the elements in the rice straws are converted into chemical state elements which can be easily absorbed by plants, and meanwhile, the elements and content thereof in the rice straws are similar to the elements and demands thereof required by the growth of the paddy rice, so that the organic fertilizer can meet the requirements for the growth of the paddy rice; and meanwhile, the produced organic fertilizer special for the paddy rice has an effect of inhibiting diseases and pests, the organic matter particles digested by the earthworms are tiny, and the surface areas of the organic matter particles are improved by more than 100 times than those before digestion, so that more opportunities for soil to be in contact with the air can be provided, the problem of land hardening is fundamentally solved, and continuous paddy rice planting can be performed.

The invention provides electronic cigarette oil with the function of clearing the nasal cavity and a preparing method thereof. The electronic cigarette oil with the function of clearing the nasal cavity is prepared from, by weight, 40-90 parts of traditional Chinese medicine propylene glycol extracts and 10-50 parts of glycerol, wherein the traditional Chinese medicine propylene glycol extracts is prepared from centipeda minima, Rhizoma Ligustici, herba schizonepetae, piper longum and piper cubeba. The lectronic cigarette oil with the function of clearing the nasal cavity contains the traditional Chinese medicine extracts, has the functions of treating nasal obstruction resulted from cold and rhinitis and clearing the nasal cavity, and contains no tobacco component, meanwhile, the problem that the physical and chemical state of the cigarette oil is unstable after natural extracts are added can be solved. The preparing method is easy to operate and the electronic cigarette oil has high practical value.

A printing form (10) having a surface (12) of pure silicon or of a silicon ceramic, which bears a pattern composed of hydrophilic and hydrophobic regions, the hydrophilic regions having a first chemical state and the hydrophobic regions having a second chemical state that differs from the first chemical state, in hydrophobic regions, the surface (12) having silicon atoms, to which at least one organic terminal group is attached in each instance. The organic terminal group may be, in particular, an unsubstituted or halogenated aryl terminal group or alkyl terminal group and be attached via an Si—C, Si—O—C or Si—O—Si—C bond. Also a method for modifying the wetting properties of the printing form, the surface (12) being brought into a first chemical state having a first wetting property, and a portion of all regions of the surface (12) being brought into a second chemical state having a second wetting property by modifying the chemical terminal groups of the surface (12).