216results about How to "With green" patented technology

The invention discloses a method for synthesizing a PdPt/graphene nano electrical catalyst in one step by a microwave process, which comprises: dispersing graphene oxide in aqueous solution of quaternary ammonium salt surfactant through ultrasonic waves, adding solution of a soluble Pd II salt or PtII salt, fully and uniformly mixing, regulating the pH value of mixed solution, adding a reducer, uniformly mixing, reacting under radiation of microwaves to reduce palladium and platinum metal ions and graphene oxide, and cooling, washing and drying the reactants to obtain the PdPt/graphene nano electrical catalyst. The method has the characteristics of energy conservation, environmental protection, quickness, simple process and the like. The obtained PdPt/graphene nano electrical catalyst hasa high electric catalysis performance for the electrochemical oxidization of methanol.

The invention belongs to the technical field of high polymer materials, and relates to modified plastics and a preparation method thereof. The modified plastics comprises, by weight, 100 parts of component manufactured plastics and 1-100 parts of humic acid materials. Compared with the prior art, the modified plastics and the preparation method thereof have the advantages that humic acid is wide in source and low in cost, the plastics modified with the humic acid materials, and thus cost can be reduced; the humic acid has the advantages of being green, environment friendly and the like, and parts of the performances, such as bending performance and heat-resistant performance, of the plastics are improved.

The invention relates to a cyanate resin for hot-melt prepregs and a preparation method thereof, belonging to the technical field of hot-melt prepregs. The cyanate resin is composed of 60-95 parts of modified cyanate resin and 5-40 parts of toughener. The cyanate resin for hot-melt prepregs has the advantages of simple technique and no solvent volatilization, and is suitable for industrial production. A hot-melt process can be adopted to prepare the prepreg. The prepreg has favorable manufacturability and long storage period. The prepared cyanate resin fiber composite material has the advantages of higher comprehensive mechanical properties, favorable heat resistance and favorable radiation resistance, can widely satisfy the requirements for high-performance aerospace structure materials, and has favorable application prospects.

The invention discloses preparation and an application of a plasma gold/zinc oxide composite nanosheet array device. The preparation of the composite nanosheet array device is that gold nanoparticles are deposited on a zinc oxide nanorod array with an in-situ photodeposition method, and the morphology of the zinc oxide array is gradually converted into a nanosheet structure from a nanorod structure. The synthesized plasma gold/zinc oxide composite nanosheet array device is adopted for efficient photocatalytic reduction of carbon dioxide, illumination is carried out for 3 hours, and the yields of methane and ethane reach up to 95%. The preparation method of the device is simple, experimental conditions are easy to control, and the device is low in energy consumption, low in raw material price, suitable for large-batch production, very friendly to environment, high in carbon dioxide reduction rate under sunlight illumination, good in photocatalytic activity and stability and expectedly applied to actual production of solar fuel.

The invention relates to a method for preparing hot rolling strip steel capable of preventing edge crack of extremely thin rolled strip steel. The method comprises the following steps of: (1) smelting, namely desulfurizing molten iron, smelting by using a converter, blowing argon at an argon station, and performing continuous casting to form slabs; (2) performing hot rolling, namely heating the slabs to 1,210 to 1260 DEG C, wherein the temperature difference of the same slab is less than or equal to 30 DEG C; performing rough rolling, and finish rolling, wherein the side pressure delta B when the slab with the width B is subjected to rough rolling is controlled according to the following formula: delta B ranges from 35*B/1,250*(B-1,050)/(1,250-1,050)+35*B/1,050*(1,250-B)/(1,250-1,050) to 50; and finally reeling to obtain the hot rolling strip steel. The method is simple and practical, is stable in use and high in uniformity, reduces the alloy cost and shortens the production cycle; and the steel plate heat commercial (SPHC) hot rolling strip steel prepared by the method has the obvious effect of preventing the edge crack of extremely thin cold-rolled sheet.

The invention discloses application of torreya essential oil in a mosquito repellent. The torreya essential oil is extracted from aril of torreya. The mosquito repellent prepared from the torreya essential oil has the characteristics of good mosquito repelling effect and environmental protection.

The invention discloses a method for dyeing fabrics with persimmons, which comprises a cooked dyeing method that comprises the following steps: fresh persimmons are cut up and placed into a boiler, water is added, the fresh persimmons are boiled so as to produce dyeing liquid, the dyeing liquid is filtered, boiled and further filtered, and the obtained twice dyeing liquids are mixed for use; a fabric to be dyed is placed into a dye vat for dyeing, and taken out from the dye vat then placed into a mordant vat for mordanting, the fabric to be dyed after mordanting is taken out from the mordant vat and further placed into the dye vat for redyeing, the fabric to be dyed that finishes the dyeing is taken out from the dye vat and water cleaned, and the dyeing process is finished after softening and drying; the method for dyeing fabrics with persimmons further comprises an ingrain method that comprises the following steps: juice of the fresh persimmons is squeezed, the fabric to be dyed is placed into a dye vat with persimmon juice for dyeing, taken out from the dye vat with persimmon juice, dehydrated, laid open and dried in the sunshine; the dried fabric to be dyed is taken back, water cleaned and redyed, and the dyeing process is finished after water cleaning and drying. The two methods of the persimmon dyeing technique can realize the dyeing with colors in multiple hues, and have the advantages of environment protecting and energy saving, etc.

The invention discloses a method of using lotus to dye natural fibers. The method comprises the following steps that: dried or fresh lotus leaves, lotus seedpods and lotus seed shells are washed, cut up and put into a pot to decoct contained pigment; decocted dyeing solutions are mixed for dye bath; a natural fiber after refining treatment is put into a dyeing vat for dyeing; the dyed object after dyeing is taken out from the dyeing vat and put into a mordanting vat for mordanting; the dyed object after mordanting is taken out from the mordanting vat and then put into the dyeing vat again for redyeing; after dyeing is finished, the dyed object is taken out from the dyeing vat, washed and dried, and then the dyeing process is completed. A lotus dyeing technique can use one species of lotus to dye a natural fiber into a plurality of colors, thereby utilizing one material efficiently. The lotus dyeing technique is a full-ecologic dyeing technique, which has the advantages of saving energy, protecting environment, contributing to health, etc.

The invention relates to a graphene anti-bacterial compound solution and a preparation method thereof. The graphene anti-bacterial compound solution is prepared from the following components in percentage by weight: 5 to 20 percent of an anionic surfactant, 3 to 15 percent of a non-ionic surfactant, 5 to 10 percent of an anti-redeposition component, 1 to 10 percent of a thickening agent, 1 to 15 percent of an emulsifying agent, 0.1 to 1 percent of graphene powder, 0.1 to 0.7 percent of pigment, 0.1 to 0.5 percent of perfume and the balance of water. According to the graphene anti-bacterial compound solution disclosed by the invention, graphene is grafted with a surfactant through a nano-microcapsule technology, so that functional graphene is embedded in the surfactant, and cell structures of bacteria and mites are destroyed by a nano knife formed by utilizing graphene nano-microcapsules. In the graphene anti-bacterial compound solution disclosed by the invention, the graphene and the surfactant have a synergistic effect, and anti-bacterial and anti-mite functions are realized; compared with an anti-bacterial agent and an anti-mite agent existing in the market, the graphene antibacterial compound solution has the advantages that the graphene antibacterial compound solution is green, environmentally friendly and nontoxic.

The invention discloses a plant protein peptide powder, which is a green, safe and healthy plant protein peptide powder, preferably protein powder derived from natural plants such as soybean protein isolate, pea protein, soybean peptide, wheat oligopeptide, and Peptide powder is the main raw material, which is more suitable for long-term use of existing sub-healthy people and middle-aged and elderly people. The preparation method of the plant protein peptide powder is also disclosed, the preparation is simple and the plant protein peptide powder can be mass-produced. The production process of the invention is simple, only needs to be sieved and mixed for packaging, has low production cost, high economic benefit, high product stability, is not easy to agglomerate, and is suitable for large-scale production.

The invention relates to the technical field of materials for construction industry, in particular to composite silicate heat preservation mortar. The invention adopts the following technical scheme that the mortar comprises the following raw materials in weight ratio: 45-65 percent of composite portland cement, 34-54 percent of glazed hollow bead, 0.5-2 percent of dispersible rubber powder, 0.1-0.6 percent of hydroxypropyl methyl cellulose, 0.5-1.2 percent of fiber and 0.1-0.4 percent of organic silicon waterproof powder. When in construction carried out by adopting the mortar produced by the technical scheme, an on-site construction mode can be adopted, and water is directly added to the mortar for stirring and then the mortar can be used. The stirred material can be directly constructed to a dry wall body; the construction performance is superior and the construction process is simple; and the construction efficiency can be greatly improved and the construction cost of a construction is reduced.

The invention discloses a polyester DTY (draw texturing yarn) oil agent and a preparation method of the polyester DTY oil agent. The polyester DTY oil agent comprises the following compounded raw materials in percentage by weight: 75-95 percent of a smoothing agent, 3-15 percent of an emulsifying agent and 2-15 percent of an additive, wherein the sum of all components is 100 percent. The preparation method of the polyester DTY oil agent comprises the following process steps: according to the weight percentage of all raw material components of the polyester DTY oil agent, extracting the accurately metered smoothing agent into a reaction kettle, performing reaction at the temperature of 30-70 DEG C, and uniformly stirring the smoothing agent; then extracting the emulsifying agent and the additive into the reaction kettle, stirring the emulsifying agent and the additive for 3-8h, and performing cooling, filtering, discharging and packaging to obtain the polyester DTY oil agent.

The invention relates to non-woven techniques, and discloses a bamboo pulp dispersible spunlace material and a production method thereof. The bamboo pulp dispersible spunlace material is prepared from, in weight percentage, 10-80% of bamboo pulp, 0-60% of wood pulp and 10-60% of man-made cellulose fibers by the aid of a wet-laying spunlace entanglement process, and the gram weight of the bamboo pulp dispersible spunlace material is 40-80g/m<2>. The production method includes the steps: 1) performing repulping and millstone grinding to obtain pulp mixed liquid; 2) adding the man-made cellulose fibers to prepare fiber mixed pulp; 3) forming an inclined net, and performing pre-spunlacing and secondary dehydration; 4) performing spunlacing, pumping and drying. The bamboo pulp dispersible spunlace material is prepared from selected special materials by the aid of a special wet spunlace non-woven process and can solve the problem of reduction of dispersion property caused by the action of wet tissue essence in the post-processing process, raw materials are easily obtained, and production cost is low.

The invention discloses a mercury removal method based on active carbon online activation and a mercury removal device based on activated carbon online activation. Low temperature plasma treatment is carried out on active carbon and high-activity gas, so that the high-activity gas is changed into high-activity atomic or ionic state by plasma and is loaded on the active carbon, an active site is formed on the active carbon, and further online activation of the active carbon is realized; and then the online activated active carbon is fed into a flue, so as to adsorb and remove mercury in flue gas in the flue, and further mercury removal treatment of the flue gas is realized. According to the mercury removal method and device, a method for online activating the active carbon by virtue plasma is utilized for obtaining modified active carbon, mercury removal efficiency of the active carbon is improved, and the advantages of short consumed time and convenience in treatment are realized.

The invention discloses a method of using gardenia to dye natural fibers. The method comprises the following steps that: gardenia fruit is pulverized, put into a pot to decoct a dyeing solution for 30 minutes and filtered, which is repeated for three times, and dyeing solutions are mixed for dye bath; a natural fiber dyed object after dyeability treatment is put into a dyeing vat for dyeing, and then is taken out from the dyeing vat and put into a mordanting vat for mordanting; the mordanting treatment is carried out at normal temperature; the dyed object after mordanting is taken out from the mordanting vat and put into the dyeing vat again for redyeing; after dyeing is finished, the dyed object is taken out from the dyeing vat, washed and dried, and then the dyeing process is completed. A gardenia dyeing technique can use one species of gardenia to dye a natural fiber into a plurality of colors, thereby utilizing one material efficiently. The gardenia dyeing technique is a full-ecologic dyeing technique, which has the advantages of saving energy, protecting environment, contributing to health, etc.

The invention discloses an ultraviolet-visible illumination fruit and vegetable fresh-keeping device and application of the ultraviolet-visible illumination fruit. The ultraviolet-visible illumination fruit and vegetable fresh-keeping device comprises an illumination control system and an illumination internal environment, wherein the illumination control system is arranged on a control platform outside a box body, the illumination control system comprises a control keyboard, a high-precision dimming measuring and control instrument, an illuminance measuring and control instrument, a relative humidity measuring and control instrument and a temperature measuring and control instrument; and the illumination internal environment comprises an ultraviolet light source, an LED (Light Emitting Diode)(red, yellow, blue and green) and other monochromatic sources, and a matched sensor. According to the ultraviolet-visible illumination fruit and vegetable fresh-keeping device, by using an ultraviolet sterilization function and a specific visible light physiological accommodation function, rotting and ageing processes of fruits and vegetables are controlled from two aspects including pathology and physiology, microorganisms carried in the surfaces of the fruits and the vegetables are killed, and the quality and functional ingredients of the fruits and the vegetables are kept, and thus an ideal refreshing effect is achieved.

The invention belongs to preparation and applications of enzyme preparations, and particularly relates to a preparation method and applications of glucose oxidase preparations. Penicillium notatum ACCC30443 is inoculated to a fermentation tank of a carbon source, nitrogen source, inorganic salts and trace elements containing fermentation medium, through aerated fermentation, a fermented liquid is prepared, and then, the fermented liquid is subjected to solid-liquid separation, so that a glucose oxidase preparation is prepared. According to the invention, a problem that new pollutions and chemical residues easily exist in the prior art is solved; and the preparation method and applications of a glucose oxidase preparation disclosed by the invention have the advantages that a preparation process is simple, strains and raw materials are safe, and prepared glucose oxidase preparations are easy to use, rapid in aflatoxin B1 degradation speed, and high in degradation rate, and the like.

The application relates to a biological metal corrosion inhibitor and an application thereof. The biological metal corrosion inhibitor contains Vibrio neocaledonicus sp which is capable of growing on the surface of a metal to form a biological film with a metal corrosion inhibition effect, thus the corrosion resistance of the metal in a water-phase system is greatly improved. The traditional contaminative protection technologies such as electroplating and chemical plating can be replaced to realize green protection of metal structures, and meanwhile, the maintenance cost can also be greatly lowered.

The invention discloses a special device for cleaning oil on a pavement. The special device comprises an automobile chassis, wherein the lower part of the front end of the automobile chassis is connected with an oil pretreatment device; a deep cleaning device is arranged below the middle part of the automobile chassis; a liquid storage device is arranged above the middle part of the automobile chassis; the deep cleaning device is communicated with the liquid storage device; the lower end of the tail part of the automobile chassis is connected with an oil cleaning collection device; the oil cleaning collection device is communicated with an oil recovery device; and the oil recovery device is positioned above the tail part of the automobile chassis. The special device for cleaning oil on the pavement has the functions of pre-treating oil stains, cleaning, washing and recovery, is high in automation degree, and integration degree, can completely replace manual operation, and has the characteristic of high convenience, rapidness, high safety, efficiency and the like. Any chemical agent is not used in the whole process, the generated wastewater and waste oil are completely recovered, and the special device has the prominent characteristic of environment friendliness.

The invention discloses a carbon-nitrogen catalyst for photosynthesizing hydrogen peroxide and a preparation method thereof. The preparation method comprises the following steps of: roasting organic matter powder containing carbon and nitrogen in air or inert atmosphere to obtain C3N4 solid powder; then grinding the C3N4 to mix with sugar liquid, and carrying out carbonation reaction in a hydrothermal reactor to obtain C3N4 modified by amorphous carbon; and then roasting in the inert atmosphere to obtain the carbon-nitrogen catalyst (CxNy). The adopted materials are rich in source, is non-toxic, has the characteristics of being environmentally friendly and sustainable and being low in cost, and is suitable for large-scale production. The carbon-nitrogen catalyst is used for producing H2O2 by using water, oxygen and a little amount of alcohol and utilizing sunlight as an energy donor, the whole process does not use any toxic reagent and toxic solvent, has no emission of wastes and waste water, is mild in reaction condition and is environmentally friendly and free of pollution.

The invention provides millet jelly and a production method thereof, the millet jelly comprises 3.0%-15% of millet particles on the basis of the total weight of the millet jelly. The millet jelly production method by using the invention comprises the following steps: preparing the other raw materials except the millet particles in the millet jelly formula into basic feed liquid; mixing the basic feed liquid with the millet particles, and then carrying out sterilization and encapsulation to obtain the product. By the reasonable formula and the proper process, the millet jelly and the production method of the invention can realize good stability of the product within the shelf life.