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1002results about How to "Achieve synthesis" patented technology

Synthesis method and application method of low-medium temperature thermal expansion microspheres

ActiveCN103665419AReduce the position differenceLow densityNitrile polymer adhesivesCoatingsAcrylic acidAlkene
The present invention discloses a synthesis method of low-medium temperature thermal expansion microspheres. The synthesis method comprises: adding a foaming agent to a water system dispersion medium containing a dispersion stabilizer, carrying out suspension polymerization on a monomer mixture adopting an acetonitrile monomer and an olefin monomer as main materials to prepare a shell of a thermoplastic copolymer with a low glass transition temperature, and encapsulating the foaming agent into the shell to obtain the surface-functionalized thermally-foamable expansion microspheres, wherein the initial particle size of the expansion microspheres is 6-11 mum, the initial foaming temperature is low than 110 DEG C, and the concentrated foaming temperature is 110-135 DEG C. According to the present invention, the low-medium temperature thermal expansion microspheres can be adopted as the filler or the foaming agent so as to be well combined with the base resin; and after being heated, the coated acrylic resin polymer shell is softened, the liquid state alkane compound in the internal becomes the gas so as to expand, and the volume is expanded to 30-40 times the original volume so as to effectively achieve effects of filling, part difference reduction and density reduction, such that the lightweight on the leather and the synthetic leather is particularly and easily achieved, and good effects are provided for leather filling and mending.
Owner:SHANGHAI GOLD LION CHEM CO LTD

Internet of things type home appliance system with cloud service function and method for controlling internet of things type home appliance system

The invention discloses an internet of things type home appliance system with a cloud service function and a method for controlling the internet of things type home appliance system. The internet of things type home appliance system with the cloud service function comprises home appliance products and a remote cloud service center, each home appliance product comprises an antenna, a radio frequency protocol stack and a master controller in sequential electrical connection, each radio frequency protocol stack consists of a radio frequency transceiving unit and a protocol stack controller sequentially, and at least one home appliance product further comprises a network interface and a human-computer interaction interface electrically connected with the corresponding master controller. The home appliance products are connected with the remote cloud service center through a public network. Each protocol stack controller comprises an encryption and decryption unit, an ad hoc network protocol and an equipment type base. Each home appliance product further comprises a networking record base connected with the corresponding master controller. The internet of things type home appliance system with the cloud service function has the advantages of simple and reasonable structure, flexibility in operation, capability of realizing synergetic and coordinated control and wide application range.
Owner:MIDEA GRP CO LTD

Method for preparing white carbon black cogeneration nanometer calcium carbonate by integrally utilizing micro silicon powder

The invention relates to a method for preparing white carbon black cogeneration nanometer calcium carbonate by integrally utilizing micro silicon powder, which belongs to the technical field of integrative utilization of silicon iron alloy industrial waste resources and industrial kiln gas carbon dioxide. The method comprises the following process steps that: micro silicon powder is dissolved by sodium hydroxide hot alkali for preparing water glass; lime is prepared through lime stone calcination, and carbon dioxide raw material gas is released; precipitated silica is prepared through water glass carbonization; carbonization filter liquid is subject to sodium carbonate causticization for preparing sodium hydroxide solution to coproduce nanometer calcium carbonate; and the sodium hydroxide solution is circulated to a hot alkali dissolving and boiling kettle for dissolving micro silicon powder to prepare water glass. The method has the advantages that the process circulation of integrally utilizing the micro silicon powder for preparing the white carbon black cogeneration nanometer calcium carbonate is realized, and a new method is provided for goals of changing metallurgy chemical industrial waste materials into resources and utilizing the waste materials at high value.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI +2

Method for replacing background, method for synthesizing virtual scene, as well as relevant system and equipment

The embodiment of the invention discloses a method for replacing a background, method for synthesizing a virtual scene, as well as a relevant system and equipment. The method for replacing the background in a video conference place comprises the following steps of: acquiring a background color determined according to a preset rule; and sending a switching command carrying the determined background color, controlling background equipment to switch according to the determined background color, and taking the switched background color as the background color of the video conference place. The method for synthesizing the virtual scene in a video conference comprises the following steps of: acquiring a switched background color, wherein the switched background color is acquired by in such a way that after acquiring the background color determined by a preset rule, background control equipment control background equipment to switch according to the determined background color through sending a switching command carrying the determined background color; and synthesizing the virtual scene based on the acquired background color. The technical scheme of the embodiment of the invention can realize the changing of the background colors of the video conference.
Owner:HUAWEI DEVICE CO LTD

Experimental device for simulating generation and exploition of benthonic combustible ice and application method thereof

The invention discloses an experimental device for simulating the generation and the exploition of benthonic combustible ice and an application method thereof. The experimental device comprises a stainless steel cylinder body, a middle penetration plate, a bottom rubber airbag, a top sealing device and an external frame, wherein the cylinder body is divided into three parts by the middle penetration plate of the whole device, i.e., a simulated seawater layer, a sedimentation layer (hydrate layer) and a free air layer from top to bottom; three windows are respectively designed in the front surface and the rear surface of the cylinder body, thereby being convenient for observation of phenomena during the generation and the decomposition of hydrates; the top sealing device works in a combined mechanical sealing mode, so that the sealing effect of the device can be guaranteed; the pore ratio of a combustible ice storage layer can be controlled according to experimental designs; and a magnetizer-induced heating temperature controller is wrapped around the combustible ice storage layer, so that the temperature can be accurately controlled so as to realize the heating of the storage layer. According to the experimental device, the conventional hydrate synthesis and decomposition experiment can be carried out; meanwhile, the large-scale simulation of the benthonic hydrates can be realized; and particularly, the phenomena in synthesis and exploition processes can be recorded by a high-speed CCD (Charge Coupled Device) camera during the generation and the exploition of seepage-type hydrates, so that the simulation visualization is realized.
Owner:SHANDONG UNIV OF SCI & TECH

Method for synthesizing nonspherical polymer microparticles

The invention provides a method for synthesizing nonspherical hydrogel microparticles. In a first stage, oil-in-water droplets are formed by adopting a T-channel structure; and in a second stage, oil / water / oil double emulsion is formed by adopting a flow focusing structure. Under the irradiation of ultraviolet light, the intermediate phase of the double emulsion is polymerized to form the hydrogel microparticles, and polymerization reaction on an interface of an external phase and the intermediate phase is suppressed, so that hydrogel cannot wrap internal-phase oil cores, and the hydrogel microparticles taking the internal-phase oil cores as templates are formed. The method has the advantages that: the volume velocity ratio of the internal phase to the intermediate phase is controlled to form a series of hydrogel microparticles with similar shapes; the number of internal cores of single double emulsion is controlled to form hydrogel microparticles with different shapes such as meniscal shapes and polypod shapes; additives in a monomer solution are controlled to form hydrogel microparticles with special functions such as fluorescence and magnetism; and compared with microparticles formed by a photoetching method, the microparticles formed by the method have three-dimensional shape structures.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Preparation method of non-ionic waterborne polyurethane-polyacrylate composite emulsion for leather finishing

The invention relates to a preparation method of non-ionic waterborne polyurethane-polyacrylate composite emulsion for leather finishing. The preparation method comprises the following steps: after low polymer dihydric alcohol, diisocyanate and a hydrophilia chain extender are stirred for reaction, cooling to indoor temperature and adding an acrylate monomer and a certain amount of a solvent for reducing viscosity; adding water for emulsification under the high-speed dispersion; then adding a micromolecule polyamine chain extender to conduct chain extension in water to obtain an acrylate monomer-polyurethane waterborne dispersing emulsion; then introducing nitrogen, heating, dropwise adding a water solution containing an initiator to trigger seeding emulsion polymerization, and continuously keeping warm to obtain the composite emulsion. The composite emulsion prepared by the invention has the advantages of low viscosity, good permeability, emulsion stability, freeze-thaw resistance, hydrolytic resistance, and excellent electrolyte resistance and acid-base resistance property, can be used for compounding with anion resin and further with cationic resin, has an excellent knurling setting property, and is particularly suitable for being used as a leather finishing agent.
Owner:SICHUAN DOWELL SCI & TECH INC

Audio synthesis method and device, and storage medium

The present invention discloses an audio synthesis method and device, and a storage medium, belonging to the multimedia technology field. The method comprises: acquiring a target original audio file corresponding to an accompaniment audio file according to song information corresponding to the accompaniment audio file to be synthesized; if a first duration difference between an accompaniment audioduration of the accompaniment audio file and an original audio duration of the target original audio file is smaller than or equal to a preset threshold, determining an accompaniment original alignment position through a short-time energy algorithm, and if the first duration difference between the accompaniment audio duration of the accompaniment audio file and the original audio duration of thetarget original audio file is larger than the preset threshold, determining an accompaniment original alignment position through the short-time energy algorithm; and based on the accompaniment original alignment position, combining the accompaniment audio file and the target original audio file into a complete audio file according to an assigned audio file format. Therefore, the audio synthesis method and device, and the storage medium can realize audio synthesis and do not need manual operation so as to improve audio synthesis efficiency.
Owner:TENCENT MUSIC ENTERTAINMENT TECH SHENZHEN CO LTD

Integrated test system and integrated test method for fiber-optic network

InactiveCN105591693AAchieve synthesisRealize unified control and centralized monitoringElectromagnetic transmissionFiberCombined test
The invention provides an integrated test system for a fiber-optic network. The system comprises a light source generator used for being connected with a first end interface of a to-be-measured optical fiber and sending a test light source, wherein the wave length of the test light source is selectable; an optical power meter used for being connected with the second end interface of the to-be-measured optical fiber, receiving the test light source and conducting the test on the relative power/absolute power to obtain the test result on the optical power of the to-be-measured optical fiber, wherein the wave length of the test light source is 1310 nm or 1550 nm during the testing process of the optical power meter; a light loss computing device used for calculating the difference value of the optical power as the test result on the light loss of the to-be-measured optical fiber based on the test result of the optical power meter on the test light source; a test control device used for controlling the operation of the system and receiving all the above test results to form a test report; and a centralized control computer used for receiving the test report updated by the above test control device. Based on the above integrated test system and the above integrated test method, the integrated test can be realized. Meanwhile, the system and the method can be applied in different test scenarios to generate a unified rest report for remote transmission. In this way, the remote centralized monitoring is realized.
Owner:INNO INSTR (CHINA) INC

Sandwiched Zr-MOFs (Metal-organic Frameworks)/graphene composite photocatalyst as well as preparation method and application thereof

The invention provides a sandwiched Zr-MOFs (Metal-organic Frameworks) / graphene composite photocatalyst as well as a preparation method and an application of the photocatalyst. The composite photocatalyst is a material with a sandwich-like structure, formed by a zirconium-containing metal-organic framework compound Zr-BDC-NH2 and graphene through compounding, wherein the graphene is 0.5-5.0% in mass fraction, the modified oxidized graphene is used as a graphene precursor, and a non-covalent self-assembly in-situ solvent thermal method is adopted for preparation; compared with the Zr-MOFs which is not loaded with graphene, the sandwiched Zr-MOFs / graphene composite photocatalyst has the photocatalytic performance improved remarkably, and can transform aromatic alcohol organic matters into the corresponding aromatic aldehyde substances in a high-selectivity manner under the excitation of visible light with 420-800 nanometers, the selectivity is 100% and the primary conversion rate can reach 70%. The non-covalent self-assembly in-situ solvent thermal method is simple and is easy to operate, and the prepared sandwiched Zr-MOFs / graphene composite photocatalyst has excellent capability of selectively oxidizing aromatic alcohol substances under a photocatalytic condition, and has important promotion significance on clean and high-efficiency industrial production of fine chemicals.
Owner:FUZHOU UNIV
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