112results about How to "Won't dissolve" patented technology

The invention discloses extraction equipment for rose essential oil and rose hydrosol which mainly includes a distillation still, a steam conduit, a condenser and an oil-water separator, wherein, the distillation still is connected with the oil-water separator by the steam conduit and the condenser; the lower end of the interior of the distillation still is provided with a steam heating coil; and the upper part of the steam heating coil is provided with a transverse plate sieve which can be opened freely. An adsorption plant is arranged between the top of the distillation still and the steam conduit and internally filled with active ceramic rings serving as an absorbent. The extraction equipment of the invention has the advantages of simple operation, convenient use and high production efficiency, and can greatly enhance the quality of the rose essential oil and the rose hydrosol.

The invention discloses a high pressure heat insulation gas storage pumping compressed air energy storage system. Air in a water-gas common-cabin passes a supercharger and then directly enters a gas storage vertical shaft, and pressure of gas in the water-gas common-cabin passes is kept stable and unchanged. Potential energy and heat of compressed air are stored at the same time because of the thermal storage effect of the gas storage vertical shaft. At the stage of energy releasing, output electric energy of the system comprises the following two parts: for one part, high pressure air with certain temperature in the vertical shaft enters a turbine to do work through expansion; for the other part, water in the water-gas common-cabin pushes the turbine to generate electric energy, and the energy density and operating efficiency of the system are improved. As a heat insulating layer is arranged outside the gas storage vertical shaft, the air is high in temperature and flows through the turbine and is expanded, then the temperature is reduced, the fact that the temperature in the water-gas common-cabin is low is guaranteed, and damage to the turbine caused by temperature rise of wateris avoided. The system stores high pressure air through the gas storage vertical shaft, greatly reduces the investment cost of a high pressure container, shortens the payback time, and improves the operating economy.

The invention provides a UV curable antifogging paint composition and a preparation method thereof. The paint composition comprises the following components: hydrophilic light cured resin, hydrophobic light cured resin, a hydrophilic light cured monomer, a photoinitiator, a solvent and an assistant. According to the invention, through use of the hyperbranched light cured resin with excellent hydrophility and the polymerizable surfactant, and cooperation with the high functionality hydrophobic light cured resin, a hydrophilicity and hydrophobicity partially cross-linked net structure can be formed after photocuring. Specifically, the hydrophilic part has excellent hydrophilic properties, so that water droplets can be easily spread on the coating to form a water film without fogging, and the hydrophobic part plays an anchorage point role in the coating, and the crosslinking density is increased, thus ensuring that the coating cannot be dissolved due to swelling in the circumstance of a large amount of water.

The invention provides a biodegradable collection bag, in particular provides a flushing-type biodegradable collection bag which has certain water resistance and can be rapidly softened or smashed by a larger current rush. The flushing-type biodegradable collection bag is made from a film which is made from processing materials comprising polyvinyl alcohol resin, a packing material, a natural polymer material, a plasticizer and the like. The flushing-type biodegradable collection bag organically combines the water resistance and the flushability of the film, and meets the flushability and biological degradability while having certain water resistance. The biodegradable collection bag can not be dissolved and broken while being used for collecting dunghill with certain moisture such as feces of patients, puke and feces of pets, and can be rapidly softened and smashed to be flushed into a sewage pipe after being put into a toilet to contact with a large amount of water, and finally the biodegradable collection bag can be completely biodegraded in a septic tank.

The present invention discloses polishing liquid for grinding and polishing microcrystal glass. The polishing liquid consists of silica sol 30-90 vol%, organic amine alkali 1-10 vol%, activator 0.5-5 vol%, KOH solution 0.5-5 vol%, and deionized water for the rest. Under CMP and high pH condition, silica as the main component of microcrystal glass is converted fast into stable silicate. The present invention has composite alkali to form high pH value, homogeneous and easy-to-clean silica sol as abrasive, organic alkali and activator to make the silica sol kernel form stable film without dissolving at pH value over 12.5. The present invention has no scoring, high polishing rate, high flowability, no precipitate and easy cleaning.

The invention provides a method of dicing a semiconductor wafer and a dicing tape for semiconductor processing. The method of dicing semiconductor wafer comprises the steps of: (a) adhering a supporting member via an adhesive onto the circuit surface side of the semiconductor wafer; (b) thinning the back surface of the wafer opposite to the circuit surface side; (c) adhering a dicing tape provided with at least an ultraviolet-curable adhesive layer onto the back surface of the wafer opposite to the circuit surface side; (d) peeling the wafer from the adhesive layer and the supporting member; (e) using an organic solvent to clean the adhesive residues on the semiconductor wafer; and (f) dicing the semiconductor wafer into several chips, wherein the adhesive layer on the region of the dicing tape that is not adhered onto the semiconductor wafer is already cured by the ultraviolet irradiation prior to the above step (e).

The invention relates to the technical field of preparation of materials, and particularly discloses a preparation method of a water-soluble vanishing model core, the water-soluble vanishing model core and application. The preparation method of the water-soluble vanishing model core comprises the following steps of S1, mixing gypsum, magnesium sulfate, water and ceramic powder according to a ratio, and uniformly stirring, so as to obtain a mixed slurry; S2, pouring the mixed slurry into a die containing an embedded part, curing, fetching out, and drying, so as to obtain the water-soluble vanishing model core. The prepared water-soluble vanishing model core can be directly applied to a gel casting technology to prepare a blank body or other water-based gel forming methods to prepare the blank body.

The invention discloses a hindered amine compound and a preparation method of the hindered amine compound. The structural formula of the hindered amine compound is shown as formula (I). The preparation method comprises the steps of: carrying out reaction of the compound shown as formula (II) with a protective reagent in a protective atmosphere to obtain an amino protective intermediate; and further carrying out reaction with an end alkene compound shown as formula (III), and de-protecting to obtain the hindered amine compound shown as the formula (I). Compared with the prior art GW-994, amino on GW-994 piperidine rings is protected by protective groups, and the end alkene groups are guided by nucleophilic reaction. As the hindered amine compound serves as an optical stabilizer of a high-molecular polymer, the hindered amine compound is not easy to dissolve and separate as the end alkene groups containing unsaturated bonds can be grafted to a high-molecular chain through a radiotechnology to form a carbon-carbon bond, so that the optical stability is enhanced.

The invention relates to a preparation method of a calcined magnesium-aluminum hydrotalcite film. The method concretely comprises the following steps: sequentially dissolving aluminum nitrate nonahydrate and magnesium nitrate hexahydrate in a certain amount of deionized water at room temperature; adding a certain amount of ammonia water after above two substances are completely dissolved in orderto obtain a precipitate, and carrying out centrifugal washing on the obtained precipitate with deionized water until the pH value is about 7.5; uniformly dispersing the precipitate in deionized waterunder a magnetic stirring condition; sequentially adding citric acid and a film-forming aid PVA solution, continuously performing stirring at room temperature to obtain a magnesium-aluminum mixed sol,uniformly applying the sol to a polytetrafluoroethylene sheet, carrying out tape casting, and drying the sheet coated with the sol to form a film in order to obtain a magnesium-aluminum hydrotalcitefilm; and calcining the film in a muffle furnace for 4 h to obtain the calcined magnesium-aluminum hydrotalcite film for adsorbing a Cr (VI) solution having a pH value of 3-5 and a concentration of 50mg/L. The method has the advantages of simple preparation process, mild conditions and good adsorption performance on heavy metal ions Cr (VI).

The invention provides a porous polymer membrane prepared from a polyvinyl acetal polymer treated by using polyurethane and a preparation method of the porous polymer membrane. Communicated holes are uniformly distributed in the porous polymer membrane, the porous polymer membrane has better electrolyte adsorption capacity and high electrolyte uptake rate up to over 300%, the gelation of the system is realized through adsorbing swelled electrolyte, and the porous polymer membrane and a gel system can stably exist for a long term. The conductivity of a gel polymer electrolyte approaches to the average value 1.0*10<-3>S/cm of the conductivity of a liquid electrolyte, the electrochemical stability window is 2.0-5.0V, the mechanical performance and the electrode compatibility are remarkably improved, the porous polymer membrane can be applied as the gel polymer electrolyte, and the safety of a battery is improved. Meanwhile, diaphragms in a liquid electrolyte system or other battery systems do not need to be used as supports.

A preparation method of a water solubility resisting PVA nanofiber composite fabric comprises the following steps that firstly, plasma pretreatment is carried out on base cloth; secondly, a PVA solution I with the PVA molecular weight being 95,000 and the mass percent being 10% is prepared, a PVA solution II with the PVA molecular weight being 20,000-30,000 and the mass percent being 25% is prepared, the PVA solution I and the PVA solution II are mixed according to the mass ratio of (2:8)-(5:5), and a PVA spinning solution is obtained; thirdly, PVA nanofiber prepared through the PVA spinning solution deposits on the base cloth processed in the first step, and a composite fabric is formed; fourthly, after the composite fabric is soaked in a glutaraldehyde solution, washing and air dying are carried out, and the composite fabric is processed through a vacuum oven. By means of the technical scheme, the production process is free of environment pollution, the production efficiency and the yield of the composite fabric are high, and the composite fabric is stable in structure and performance and high in water solubility resistance.

The invention provides an ultraviolet light curing antifog coating composition. The composition is prepared from, by weight, 40-80 parts of hydrophilic light-cured resin, 15-45 parts of hydrophobic light-cured resin, 5-15 parts of hydrophilic light curing monomers, 1-5 parts of photoinitiator and 0.01-0.05 part of an auxiliary, the composition further comprises a solvent, and the weight of the solvent is 2-4 times of the total weight of the other components. After the ultraviolet light antifog coating is cured by ultraviolet light, the water resisting performance of a coating film is improved, lasting antifog performance is achieved, and the coating film is high in hardness, good in scrubbing resistance and very suitable for fields such as automotive lamps, windshields, bathroom mirrors, optical lens materials which have antifog requirements.

A fluid ejector includes a substrate having an exterior surface and an interior surface. A non-wetting coating can cover at least a portion of the exterior surface and can be substantially absent from the flow path. A non-wetting coating can be formed of a molecular aggregation. A precursor of a non-wetting coating may flow into a chamber at a higher temperature higher than the substrate. A non-wetting coating can be over a seed layer. An outer portion of the seed layer can have a higher concentration of water molecules or a greater density than an inner portion. The outer portion can be deposited at a ratio of partial pressure water to partial pressure matrix precursor that is higher than the ratio for the inner portion. An oxygen plasma can be applied to a seed layer on the exterior surface, and the non-wetting coating can be applied on the seed layer.

The invention discloses a water purifying agent. The water purifying agent is prepared from, by weight, 30-50 parts of Chinese herbal medicine residues, 15-30 parts of activated carbon, 15-20 parts of diatomite, 5-10 parts of bentonite, 5-10 parts of sodium silicate, 15-20 parts of aluminum sulfate, 5-10 parts of white Portland cement and 3-5 parts of gypsum. The water purifying agent has the advantages of being excellent in floculation effect, high in speed, environmentally friendly, free of toxicity, low in cost, wide in application range and the like, the effects of decoloration, deodorization, removal of ammonia nitrogen(NH4-N) and COD in water and the like are significant, the water purifying agent can be used for various water treatment engineering, aquaculture industries and water dispenser filter cores and can meet related requirements of daily life water purification and life and production of people.

The invention discloses a method for producing a low-oxygen molybdenum-niobium alloy target material. The method comprises the following steps that 1, molybdenum powder is put into a vacuum sinteringfurnace for heat treatment; 2, niobium metal powder and alkali metal halide MX are uniformly mixed to obtain mixed powder; 3, the molybdenum powder obtained in the step 1 and the mixed powder obtainedin the step 2 are put into a V-shaped mixer for mixing, and cold isostatic pressing molding is carried out after a rubber sleeve is put into the mixture; and 4, an ingot is put into a vacuum-hydrogendual-purpose sintering furnace for heat treatment. Compared with the prior art, the method has the advantages of being low in oxygen removal cost and good in effect, and the obtained molybdenum-niobium alloy target material is low in impurity and oxygen content and excellent in performance.

The invention discloses a method for synthesizing crosslinking succinyl xanthic acid chitosan and application thereof to the aspect of heavy metal ion adsorption. According to the method, a target product is obtained through the succinylation reaction, the xanthation reaction and the crosslinking reaction. The crosslinking succinyl xanthic acid chitosan obtained according to the synthesizing method has a performance of being insoluble to acid. The synthesizing method is simple and easy to operate, and the aftertreatment of the product is simple. The invention further discloses application of the crosslinking succinyl xanthic acid chitosan serving as a heavy metal ion adsorbing agent. The crosslinking succinyl xanthic acid chitosan can efficiently adsorb various metal ions in water solution, such as Pb2+, Ni2+, Cd2+ and Co2+.

The invention relates to a UV-CTP plate imaging coating layer resistant to UV ink. The UV-CTP plate imaging coating layer is characterized by comprising consituents based on percent by mass: 10-60% of solvent resistant resin, 2-12% of solubilizer, 3-25% of dissolution promotion resin, 10-65% of film forming resin, 0-1% of dissolution resistant resin, 6-30% of ester matter of alkylphenol-formaldehyde resin and 2-heavy nitrogen-1-naphthoquinone-4-sulfonyl chloride, 0-30% of ester matter of pyrogallol-acetone resin and 2-heavy nitrogen-1-naphthoquinone-5-sulfonyl chloride, 0-20% of alcohol-resistant dissolution inhibitor and 0.85-2% of dye. With the adoption of the abovementioned technical scheme, the UV-CTP plate imaging coating layer resistant to the UV ink is provided by the invention, is high in UV ink resistance, cannot be dissolved, and has a long printing lifetime.

The invention discloses an aldehyde-free fireproof adhesive for plywood and a preparation method of the aldehyde-free fireproof adhesive, and belongs to the technical field of preparation of adhesives. The aldehyde-free fireproof adhesive for the plywood comprises 50-60 parts of water glass, 5-8 parts of nanocellulose, 15-20 parts of polyacrylamide, 20-30 parts of a crosslinking agent, 4-6 parts of an initiator, 8-10 parts of a thickening agent, 10-15 parts of a filler and 70-80 parts of deionized water. According to the aldehyde-free fireproof adhesive for the plywood, the viscosity of the adhesive can be greatly improved by viscosity brought by the modification effect of the water glass and other biological materials, meanwhile, formaldehyde brought by a 'three-aldehyde' wood adhesive isavoided, therefore, the zero-formaldehyde characteristic of the adhesive is realized, and an effect of environmental protection can be achieved. Moreover, due to combination of inorganic silicon andorganic silicon, the fire resistance and water resistance of the adhesive are greatly improved.

The invention aims to provide a continuous friction-resistant ultraviolet curing antifogging coating composition and a preparation method of the continuous friction-resistant ultraviolet-curing antifogging coating composition. A super-hydrophilic coating obtained after photocuring of the coating has excellent continuous antifogging performance and excellent abrasion resistance, so that some defects of antifogging coatings on the market are overcome, the coating still has excellent antifogging performance after being soaked in water for use (such as swimming goggles) for a long time, the continuous antifogging time can reach 1-2 years, and the super-hydrophilic coating is very suitable for being applied to the fields with anti-fog requirements, such as swimming goggles, car lamps, windshields, bathroom mirrors, optical lens materials and the like.

The invention discloses a hydrophobic double-coating microcapsule and a preparation method thereof. The hydrophobic double-coating microcapsule comprises a water-soluble microcapsule core and an enteric-soluble hydrophobic layer coating on the outer surface of the water-soluble microcapsule core. The weight ratio of the water-soluble microcapsule core and the hydrophobic layer is 1:0.05-0.1. The beneficial effect of the hydrophobic double-coating microcapsule is that the hydrophobic double-coating microcapsule is capable of effectively embedding active ingredients of a core material, and preventing the core material from being migrated and oxidized, thereby improving the stability of the microcapsule, and the hydrophobic double-coating microcapsule has the good dissolution rate in an enteric solubility environment, and is beneficial for the biological absorption.