1856results about How to "Easy to store and transport" patented technology

The invention relates to the field of aluminum alloy surface treatment, in particular relates to an environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid and an application thereof in an environmentally-friendly corrosion-resistant chromium-free chemical conversion film with aluminum alloy coating adhesion for ships, and solves the problems of incapability of meeting the requirements on corrosion resistance and coating adhesion in the current environmentally-friendly chemical conversion treating process. The prepared chemical conversion film has excellent corrosion resistance and coating adhesion, is convenient in construction and can be used for substituting for a traditional chromium-containing chemical conversion and phosphate treatment process. The environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid mainly comprises the components of silane, corrosion inhibition components and a solvent. The chromium-free chemical conversion film construction modes comprise dipping, roller painting and spraying, and the curing modes comprise natural curing and heating curing. The environmentally-friendly corrosion-resistant chromium-free chemical conversion film in the invention has excellent corrosion resistance and coating adhesion, can be used for substituting for a traditional chromium-containing chemical conversion and phosphate treatment process, and is applicable to aluminum alloys for ships such as 5xxx and 6xxx series aluminum alloys.

The invention discloses a kind of the hydrogenation catalyst outside the equipment pretreating method.The method step as follows: (1) oxidation state hydrogenation catalyst outside gas phase prevulcanization:joins the Oxidation state hydrogenation catalyst in to the curing reactor, passes over the sulfur carburetion into the curing reactor to carry on the curing response; (2)the curing condition catalyst gas phase deactivation processing: joins the cured catalyst prepared in the step (1) to the deactivate reactor, uses the obtuse carburetion which contains the oxygen to deactivate the curing condition catalyst.The invention responses condition is temperate, could not produce flies the warm phenomenon, the curing is even, broke through the traditional catalysis and the curing method, reduces the catalyst carbon deposition quantity, enhances the adding sulfur rate, causes the activeness and the stability of the catalyst be remarkable enhanced, could stablely exist in the air, it is advantageous for the transportation and the preserve, greatly reduces the industry hydrogenation cost.

The invention provides a nano artificial dura mater with a plurality of functional layers, which comprises a structure with at least two layers; the layer facing the brain is a hydrophobic anti-adhesion electrospun layer; and the layer back to the brain is a hydrophilic nano cytoskeletal layer. The invention also provides a method for preparing the nano artificial dura mater, which comprises the following steps: preparing an electrospun solution of a hydrophobic polymer; preparing an electrospun solution of a hydrophilic polymer; preparing the prepared electrospun solution of the hydrophobic polymer into the hydrophobic anti-adhesion electrospun layer through static spinning; and preparing the hydrophilic nano cytoskeletal layer on the anti-adhesion electrospun layer from the prepared electrospun solution of the hydrophilic polymer through static spinning, receiving a membrane structure, and obtaining the nano artificial dura mater. The mechanical features of the nano artificial dura mater can meet the requirements on tensile strength and flexibility of adaptation diseases; and the nano artificial dura mater can be freely cut as required, and has wide application prospect.

The invention provides a medical anti-sticking membrane and a preparation method thereof. The anti-sticking membrane comprises a nanometer frame and hydrosol attached thereon. The hydrosol is internally packed with one or several kinds of styptic medicament or / and anti-sticking medicament. The invention also provides a preparation method of the anti-sticking membrane, comprising the following steps of: preparing electro-spinning solution, styptic medicament and / or anti-sticking medicament-containing hydrosol solution and crosslinker solution; receiving static spinning with the crosslinker solution to obtain the nanometer frame; printing the styptic medicament and / or anti-sticking medicament-containing hydrosol solution onto the nanometer frame by an ink-jet printer, and solidifying the hydrosol solution to obtain the anti-sticking membrane. The anti-sticking membrane has good capability and biological compatibility, and nontoxicity as well as nonirritant, can be completely degraded and absorbed, is compounded with controllably released styptic medicament or / and anti-sticking medicament, has controllable degrading time and speed, and conquers defects of the prior art.

The invention provides a nanometer bionic wound-surface cover and a preparation method thereof. The nanometer bionic wound-surface cover comprises a nanometer bionic bracket and hydrosol attached to the bracket, wherein the hydrosol covers one or a plurality of cytokines. The preparation method for the nanometer bionic wound-surface cover provided by the invention comprises the steps of preparingan electrostatic-spinning solution, a cytokine-containing hydrosol solution and a crosslinker solution, preparing the nanometer bionic bracket by use of electrostatic spinning, using an ink-jet printer to print the cytokine-containing hydrosol solution onto the nanometer bionic bracket, and the like, wherein electrostatic spinning and printing can be repeated so as to form the wound-surface covers different in thickness. The preparation method adopts an in-situ autologous stem-cell engineering technique and adopts stem-cell chemotactic factors to attract autologous stem cells to directionally migrate, enter a wound surface and be differentiated according to designed requirements, thereby avoiding inconvenience caused by using viable cells, achieving rehabilitation effects the same with orbetter than that of using the viable cells and having broad application prospects.

The invention discloses a plant protection unmanned aerial vehicle, which comprises a body, wherein the body comprises a power frame, a lower frame, quick release spray heads, pipelines and a water pump; the water pump is mounted at the lower frame; the lower frame is connected to the bottom of the power frame; the power frame comprises a first mounting rack and a plurality of arms arranged in the circumferential direction of the first mounting rack; one end of each arm is fixedly arranged on the first mounting rack; the other end of each arm is equipped with a first motor and rotor wings driven by the first motor to rotate; the quick release spray heads are fixedly arranged on the arms in a detachable manner and located below the rotor wings in a one-to-one correspondence manner; the water pump is communicated with the quick release spray heads by a multi-way joint and through the pipelines. The plant protection unmanned aerial vehicle is small in volume, high in work efficiency and long in endurance.

The invention provides artificial articular cartilage based on autologous cells and a preparation method thereof. The artificial articular cartilage comprises a nano bionic support and hydrosol adhered to the nano bionic support, wherein one or more cytokines are coated into the hydrosol. The invention also provides the method for preparing the artificial articular cartilage, which comprises the following steps: preparing an electrostatic spinning solution, a cytokine-containing hydrosol solution and a crosslinking agent solution; using the crosslinking agent solution to receive electrostatic spinning so as to prepare the nano bionic support; and using an ink jet printer to print the cytokine-containing hydrosol solution on the nano bionic support, and curing the hydrosol to obtain the artificial articular cartilage. The three-dimensional support adopted by the invention has ideal degradation speed and is degraded after the regeneration of an articular cartilage layer, can meet the requirement of actual clinical application, can be completely degraded, and has good abrasion resistance and lubricity so as to be capable of replacing the cartilage before the regeneration of the articular cartilage layer.

The electronic industrial glass cleaning agent composition belongs to the field of electronic industrial cleaning technology. The cleaning agent consists of sodium metasilicate, sodium hydroxide, sodium carbonate, sodium bicarbonate, Pluronic polyol, CMC, fluoric surfactant, complexing agent, defoaming agent and deionized water. It is used to clean substrate glass and coated conducting glass. During the cleaning, the cleaning agent in 1-5 % is compounded with deionized water in 95-99 % to compound the cleaning liquid for showering or ultrasonic cleaning to eliminate pollutant on glass fastcompletely. It is used to replace strong acid and strong alkali cleaning agent and has no damage to glass surface and no corrosion to ITO film. The cleaning agent has no bad smell, no toxicity and no corrosion, and is safe, reliable, environment friendly and low in cost.

The invention belongs to the technical field of surface protective materials, and discloses an ultraviolet-cured stripping protective material and a preparation method and application thereof. The stripping protective material comprises the following components in parts by weight: 50-90% of polyurethane modified acrylic ester, 5-35% of acrylics reactive diluent, 1-8% of photoinitiator, 1-15% of filler, and 0-10% of additive. According to the ultraviolet-cured stripping protective material, the ultraviolet light is used for triggering a chained polymerization, the time for curing is short, generally 1-5 seconds, and the production efficiency is high; not any organic gas is released, so that the preparation method is more environment-friendly; the use and operation process is simple and convenient, the surface of the material is not affected due to overheating curing, mist is generated after stripping; the integral protective material can be better stripped, is not sticky, has no mist, and is applicable to protecting surfaces of ITO (indium tin oxide) glass, ITO membranes and PET (polyethylene terephthalate) membranes.

The invention relates to a biomass pyrolysis device and a process thereof. The device comprises a charging system, a spiral pyrolysis reactor and a product collection system, wherein a rotating shaft which is communicated with a variable-frequency motor and provided with a spiral propeller is arranged in center holes on two end covers of a cylinder body of the reactor; the side wall of the cylinder body is provided with a biomass feed pipe and a pyrolysis product outlet pipe; the outlet pipe is vertically extended into a coke collection tank; and the coke collection tank are communicated with a condenser, a bio-oil collection tank and a tail gas discharge pipe in turn through an air outlet pipe on the side wall. The process comprises the following technological processes: firstly, starting an external heating system to ensure that the temperature in a reactor is between 500 and 550 DEG C; secondly, putting biomass granular raw materials into the reactor through an inlet pipe, simultaneously starting the variable-frequency motor, and determining the rotating speed n of the variable-frequency motor according to the set residence time t, and the axial length L and the screw pitch l of the spiral propeller; and finally, starting the pyrolysis product collection system. The biomass pyrolysis device can accurately control the pyrolysis time and control the pyrolysis temperature in a partitioning mode so that the obtained bio-oil components are controllable and are easy to extract chemical products.

The invention relates to an oral drug composite of beta-cyclodextrin edaravone inclusion, comprising the compositions in parts by weight: 1 part of edaravone and 6-100 parts of cyclodextrin. Based on the optimization scheme, the mass ratio of the edaravone and the cyclodextrin is 1:6-50, wherein the mass ratio of beta-cyclodextrin to the cyclodextrin is 1:6-20, and the mass ratio of mixed cyclodextrin containing the beta-cyclodextrin is 1:8-50. A preparation method comprises the following steps of mixing the beta-cyclodextrin or the mixed cyclodextrin containing the beta-cyclodextrin with 1-5 times mass of water, adding the edaravone with the selected mass ratio or adding a solution prepared from the edaravone and 10 times soluble organic solvent, grinding or stirring, vaporizing and eliminating water at the temperature no higher than 60 DEG C, and decompression drying to obtain a white powdery inclusion complex. A contrast test is carried out on the invention and edaravone injection on sale, the absolute bioavailability of an inclusion complex preparation thereof can reach above 55 percent; and compared with a common edaravone suspension preparation (attached drawing 6), the relative bioavailability of the invention reaches up to about 1000 percent.

The invention discloses a cyclopropene complexes capsule and a preparation method thereof, and the method causes 1- metayl cyclopropene / cyclodextrin (1-MCP / CD) complexes powder to be convenient for preservation, transportation and use. The method is characterized in that complexes and supplementary materials which are accurately weighed are encapsulated in the capsule, the serialized capsules with different 1-MCP complexes weight percentages can be produced according to 1-MCP complexes effective component content and actual needs. When in use, the capsule only needs to be directly put into water, acid or alkali solution. The capsule prepared by the method of the invention has simple processing technique, low cost and convenient use, is easy to preserve and transport, and provides a reliable method for the new antistaling agent of 1- metayl cyclopropene to enter common families.

The invention discloses a cleaning agent for molybdenum aluminum molybdenum coated glass, which comprises the following components by weight: 3-8% of anionic surfactants, 10-30% of nonionic surfactants, 0.2-3% of corrosion inhibitors, 10-30.25% of cosolvents, 5-15% of organic solvent, 0.2-0.5% of chelants and 37.35-64.1% of deionized water. The cleaning agent for the molybdenum aluminum molybdenum coated glass is strong in dirt-removing capacity, wide in environmental suitability, good in stability, low in foam, easy to rinse, good in wettability, free of damage to glass surface, elements such as phosphorus and silicium, peculiar smell, toxicity, corrosivity and pollution to environment, safe, reliable, incombustible, low in cost, convenient to transport and store and low in cleaning cost. In addition, the cleaning agent for the molybdenum aluminum molybdenum coated glass does not explode.

The invention discloses a system device and a method for recycling sulfur dioxide from fume to prepare sulfur. The device comprises three units of an absorption and pyrolysis unit, a reduction unit and a krauss unit, wherein the absorption and pyrolysis unit mainly consists of a cooling tower, an absorbing tower, a purifier, a circulation pump, a regeneration pyrolysis tank and a rich and lean liquid heat exchanger; the reduction unit mainly consists of a mixed gas generation system, a reduction reactor and a sulfur condenser; the krauss unit mainly consists of a krauss reactor and a sulfur condenser. The method comprises the steps that the absorption and pyrolysis unit absorbs and pyrolyzes the fume so as to obtain a pure sulfur dioxide gas, and the reduction unit converts the sulfur dioxide into elementary sulfur through catalysis reaction, wherein the conversion per pass is not less than 95%, and the total conversion is greater than 99.5%. The sulfur dioxide content that the fume is completely discharged is not greater than 50 milligrams per normal cubic meter. The sulfur dioxide is converted into national best grade sulfur products which are stable in property and convenient to store and transport, with high efficiency and low cost, the desulfuration operation cost is lower than the value of a recycled product, and the products can be widely applied to chemistry and thermal power industry.

The invention discloses a preparation method of a dry nano-fiber facial mask. The preparation method comprises the following steps: preparing a polyvinyl alcohol water solution, a chitosan water solution, a sodium hyaluronate water solution and a nutrient solution; mixing the water solutions to form a spinning solution, carrying out multi-needle electrostatic spinning, and finally forming a layerof nano-fiber film on a facial mask non-woven fabric base material serving as a receiving screen, so as to obtain a composite fiber film; drying at 70-80 DEG C for 2-5 minutes; and carrying out slitting, formation, sealed packaging and sterilization, so as to obtain the dry nano-fiber facial mask. According to the preparation method, effective components in facial mask liquid are mixed into a polyvinyl alcohol spinning base solution, the nano-fibers are prepared by virtue of an electrostatic spinning technique and fixed on a facial mask non-woven fabric, the facial mask is taken out in use, aproper amount of purified water is sprayed to the front surface of the facial mask to adequately wet the facial mask, and then the facial mask can be applied to the face of a user. The water content is extremely low before use, and natural chitosan type antibacterial components are added, so that the guarantee period is prolonged, and the facial mask is convenient to transport and store.

A graphical user interface interception. Its characteristics is that the use of the graphical user interface of the target window attribute information, as well as graphics window of the target window to redraw the necessary mapping function name and the corresponding action graphics data generation that The graphical user interface of the target window graphics composite graphics data; window described in graphic attribute information contained window size and window attribute; action described in graphics data mapping function parameters logo, for the completion of the mapping function of the corresponding graphics operation data. The invention through the window into the mapping function library mapping function interceptors, and through the window to intercept and record the movements generated graphics graphical user interface includes vector and vector or bitmap data of graphics data. In accordance with the invention generating graphical user interface graphics information and data in small, easy storage and transmission, and is faster.

The invention relates to a preparation method of whipped cream powder. The method comprises the following steps that (1) vegetable fat and an emulsifying agent are mixed uniformly to form mixed liquid 5; white granulated sugar, sodium caseinate, whey protein and milk powder are mixed with water to form mixed liquid 1; the mixed liquid 1 is mixed with glucose syrup to form mixed liquid 3; a water retention stabilizer and a thickener are mixed with the water to form mixed liquid 2; the mixed liquid 2 is mixed with the mixed liquid 3 to form mixed liquid 4; the mixed liquid 5 is mixed with the mixed liquid 4 to form oil-water mixed pulp; the oil-water mixed pulp is stirred, sheared and emulsified to form uniform light-milk yellow pulp; (2) the pulps obtained in Step (1) are homogenized to form homogenized pulp; and (3) the homogenized pulp is pasteurized and subjected to spray drying; an anticaking agent is added to powder obtained through the spray drying, and mixed uniformly to form the whipped cream powder. The whipped cream powder can serve as a principal raw material of preparation of decorative cakes, mousse cakes and puffs.

The invention discloses a nerve conduit and a preparation method thereof. The nerve conduit consists of an inner layer, an outer layer and at least one minitype cavity for storing a bioactive factor solution, wherein the inner layer is of a hydrophilic cell scaffold layer, and the outer layer is of a hydrophobic nerve conduit scaffold layer. The nerve conduit can further comprise a transition layer between the inner layer and the outer layer. The preparation method of the nerve conduit comprises the steps of preparing the inner layer by adopting an electrostatic spinning method, then adding the material for preparing the cavity, then preparing the outer layer, and taking out or dissolving the material for preparing the cavity, thus obtaining the nerve conduit. The nerve conduit has the minitype cavity, so that bioactive factors can be loaded by a manner of injection, soaking and the like as required before operation, thus not only leading the production quality to be easily controlled, but also being capable of greatly improving the survival rate of the bioactive factors, more efficiently promoting the regeneration of nerves, and enhancing the restoration effect of nerves.

The invention discloses a natural solid cleaning agent for cleaning stains on hard surfaces of objects, which is prepared from the following raw material in percentage by weight: 6 to 50 percent of kaolin, 4 to 36 percent of zeolite, 7 to 45 percent of calcite powder, 3 to 40 percent of pumice powder, 4 to 55 percent of feldspar powder, 2 to 17 percent of kieselguhr, 3 to 22 percent of montmorillonite powder, 4 to 40 percent of talcpowder, 1 to 15 percent of saponin, 3 to 18 percent of white carbon black and 0 to 40 percent of water. The natural solid cleaning agent has desirable cleaning effect on various stains, such as oil stains, sweat stains, tea stains, juice stains, milk stains, blood stains, ink stains, ash stains and dust stains on hard surfaces of metal, ceramic, wood, glass, fiber plates and stone plates. The raw materials are natural powder and plant extracts. The cleaning agent has high biodegradability and is safe, environmentally-friendly, pollution-free and convenient to use.

The invention provides a nano artificial dura mater capable of being used as a medicine sustained-release system, having the structure which comprises at least two layers, i.e. a hydrophobic anti-blocking electro-spun layer which faces the cerebrum, and a hydrophilic nano cytoskeleton layer which backs on to the cerebrum; and cell factors and / or medicines are arranged in any layer of the artificial dura mater by way of blended spinning. The invention also provides a method for preparing the nano biomimic artificial dura mater. Compared with an artificial mater prepared by the single utilization of the electro-spinning technology, the artificial mater to which the medicines and the cell factors are added by blending technology can effectively prevent infection and faster promote the regeneration process of the artificial mater. The invention also provides a novel medicine loading and releasing mode for treating cerebral diseases, the loaded medicines can be directly and efficiently transferred into the cranial cavity along with the implantation of the dura mate and can be released according to requirements, and therefore the invention realizes favorable treatment effect and has broad application prospect.

The invention relates to a preparation method of a water-soluble polymer dispersion. The water-soluble monomer is dispersed in a solution polymerization system containing a dispersant, an initiator and a metal ion scavenger to perform polymerization and obtain the water-soluble polymer dispersion, wherein the dispersant is a composite dispersant system and contains at least one kind of water-insoluble inorganic macroparticles and at least one water-soluble polymer dispersant. The invention utilizes the composite dispersant system in which the water-insoluble inorganic macroparticles are matched with the polymer dispersant to form dispersion coating mechanism so as to reduce the concentration of high molecular polymer in continuous phase and ensure that the rolling friction and rigid impact are mainly adopted between the polymer molecule chain and the macroparticles. Therefore, the viscosity of the dispersion is effectively reduced while the molecular weight of polyacrylamide polymer in the dispersion is not reduced, and the water-soluble polymer dispersion with high concentration, good solubility, uniform dispersion, high efficiency and full water-solubility can be prepared.

The invention discloses a sinorhizobium meliloti strain capable of being applied to fermentation to generate vitamin B12, wherein the preservation number of the sinorhizobium meliloti strain is CGMCC No.9638. The invention also discloses a production and preparation method of vitamin 12 by the sinorhizobium meliloti strain in a fermentation manner. The method comprises a fermentation culture condition of the strain and an extraction method of the vitamin 12 in fermentation liquor; the method comprises the following steps: inoculating the strain on a solid culture medium into a triangular flask as a seed solution; inoculating the seed solution into a fermentation culture medium at 30 DEG C with 10% of inoculation amount; fermenting and cultivating at 200rpm for 200 hours, and then collecting the fermentation liquor; and adding a transforming agent to transform the fermentation liquor into cyano cobalt amine. The vitamin 12 is widely applied to the industries such as feeds, additives, medicines and cosmetics as a special factor in an adjusting organism growth process; and the requirement of the vitamin 12 rises year by year. The strain fermentation process is easy to control, so that the strain fermentation process is not affected by the factors such as seasons; the requirements on raw materials are simple; and fermentation production is developed into a main production mode.

The invention relates to sound-absorbing devices, assemblies and systems and corresponding methods for altering the reverberation time of a room, specifically although not necessarily exclusively at low frequencies. A sound-absorbing device according to the invention comprises basically a body containing one or more cavities (4), where at least a portion of the outer surface of the body is in contact with said sound field S and where said body is inflatable / extendable and collapsible / compressible during the supply of a gas to or the removal of the gas from said at least one cavity (4), respectively, whereby the absorption coefficient (a) and / or the resonance frequency of said body can be varied, thus determining the absorption coefficient and / or the frequency region in which maximum absorption will take place.

The invention relates to an application of exosome secreted by human umbilical cord mesenchymal stem cells to treating skin injury and in particular relates to a medicinal action of vesica structure exosome which is secreted by human umbilical cord mesenchymal stem cells and has the diameter of about 100nm in the promotion of skin injury repair, belonging to the technical field of skin injury treatment. The exosome disclosed by the invention comes from the human umbilical cord mesenchymal stem cells. The test proves that the disclosed exosome serving as an important component secreted by the human umbilical cord mesenchymal stem cells has an obvious medicinal action in promoting repair in the aspects of skin injuries including burns and scalds and injury removal, and has the advantage of convenience in storage and transportation. Therefore, the exosome from the umbilical cord mesenchymal stem cells provides possibility for non-cell skin injury by taking the mesenchymal stem cells as the basis.

The invention discloses a herba portulacae extract and a preparation method thereof. The preparation method comprises the following steps of: 1, carrying out extraction and enzymolysis on fresh herba portulacae and / or dried herba portulacae with water and hydrolysis enzyme; 2, carrying out ethanol extraction on a feed solution obtained in the step 1, carrying out solid and liquid separation to obtain an extraction solution A and filter residue; 3, carrying out ethanol extraction on the filter residue obtained in the step 2, carrying out solid and liquid separation to obtain an extraction solution B and filter residue; 4, extracting the filter residue obtained the step 3 by using water, carrying out solid and liquid separation to obtain an extraction solution C; and 5, mixing the extraction solutions A, B and C obtained the step 2, 3 and 4, removing ethanol, concentrating, standing, and filtering to obtain filtrate to obtain the herba portulacae extract. The invention also discloses the herba portulacae extract solution and the preparation method thereof. A herba portulacae extract or extract solution can be used as an anti-stimulation and antianaphylaxis function component to be applied to cosmetics. The preparation method disclosed by the invention can be used for preparing the herba portulacae extract with higher effective component content, with high yield.

The invention relates to sound-absorbing devices, assemblies and systems and corresponding methods for altering the reverberation time of a room, specifically although not necessarily exclusively at low frequencies. A sound-absorbing device according to the invention comprises basically a body containing one or more cavities (4), where at least a portion of the outer surface of the body is in contact with said sound field S and where said body is inflatable / extendable and collapsible / compressible during the supply of a gas to or the removal of the gas from said at least one cavity (4), respectively, whereby the absorption coefficient (a) and / or the resonance frequency of said body can be varied, thus determining the absorption coefficient and / or the frequency region in which maximum absorption will take place.

A bone tissue regeneration guiding membrane. The invention employs an antigen-extracted mammal tissue membrane, which has a double layer structure of a compact layer and a loosening layer. The compact layer is formed by tightly arranged collagen fibers, and an external side of the compact layer is composited with a collagen coating containing active polypeptides; the loosening layer is formed by interlaced collagen fibers and is composited with ossification active factors. The prepared guiding membrane can prevent soft tissue from evolving and promote new bone formation, has good biological compatibility, hydrophilism and bone induction capability, and can be completely degraded in body without generation of harmful substances. Besides, the guiding membrane has an effect of isolating cell evolving, a characteristic of slow degradation and a longer retaining time in body than a current guiding membrane prepared from natural high-molecular polymer, and can provide enough time and space for new bone growth. The method of the invention is simple, and raw materials have wide sources and low prices, so that the method is suitable for large-scale industrial production and beneficial to lowering medical costs and mitigating patient burdens.

The invention discloses modified triethanolamine, a preparation method thereof and various grinding aids produced by using the modified triethanolamine. The modified triethanolamine is a cross mixed ester product produced through the chemical reaction of triethanolamine, inorganic mixed acid and catalyzer at a temperature. Grinding aid intensifier in powdered form, aqueous liquid form and nonaqueous liquid form is prepared by effectively compounding the product with other components. The triethanolamine is converted into the cross mixed ester having large molecular weight, thus reducing the cost by about 30 percent; the modified triethanolamine is applicable for powder grinding process at high temperature. The cement grinding aid intensifier prepared by compounding triethanolamine with other materials has better grinding aid effect compared with such conventional grinding aids which are used separately as triethanolamine and so on, improves the early strength of cement and reduces the consumption of wrought material; the materials used are cheap, and are stored and transported easily. The multiform products (powdered and in liquid state) are widely applicable in the cement industry.

A medical support pillow comprising of a pair of oppositely positioned sidewalls, a bottom portion having a bottom surface, and an upper portion. The support pillow includes a head support and neck support, which are dimensioned to automatically align the airways to facilitate CPR when head and neck are positioned thereupon. The upper portion has two opposing inclined surfaces. The first inclined surface for receiving and supporting the individual's neck, the second oppositely positioned inclined surface for supporting the individual's head. In a further embodiment, the medical support pillow has a circular indentation, which curves inwardly on the upper portion which hold and support and individual's neck to prevent substantial movement of the individual's head. In a further embodiment, the medical support pillow includes a hollowed out section on both right and left side of base creating handles making the medical support pillow easy to carry and transport.

The invention discloses a thermoplastic polyimide adhesive film as well as a preparation method and application thereof. A structural formula of a polymer for manufacturing the adhesive film is as shown in a formula I in the specification. The preparation method comprises the following steps of: (1) uniformly mixing aromatic diamine, aromatic tetracid dianhydride and a blocking agent in an organic solvent to obtain a homogeneous solution, then adding methylbenzene and isoquinoline to be mixed uniformly, heating to 170-190 DEG C and reacting for 10-24 hours to evaporate the methylbenzene, stopping heating after heating a reaction system to above 200 DEG C, precipitating after cooling to 80-120 DEG C; and (2) dissolving the obtained polymer in an organic solvent to obtain a glue solution of polyimide, coating the glue solution of polyimide on a baseplate, and drying to obtain the polyimide adhesive film. The adhesive film has excellent room-temperature and high-temperature splicing performance when being used for splicing metal materials, resin composite materials and the like.