69results about How to "The preparation process is environmentally friendly and pollution-free" patented technology

The invention relates to a method for synthesizing nitrogen-doped graphene hydrogel in one step and using nitrogen-doped graphene hydrogel for electrically adsorbing heavy metal ions in water. The method comprises the following steps of preparing nitrogen-doped graphene hydrogel and nitrogen-doped graphene hydrogel paper electrodes, and adsorbing and desorbing the heavy metal ions in the water by regulating and controlling voltage on the electrodes. The nitrogen-doped graphene hydrogel has the advantages that the preparing method of the nitrogen-doped graphene hydrogel is simple and easy to implement, the preparation process is environmentally friendly and free from pollution, the electrodes modified by the hydrogel are high in efficiency and speed of adsorbing the heavy metal ions in the water, and easy to operate, and the recycling performance of the hydrogel is greatly improved compared with that of materials in the past.

The invention relates to preparation of a chitosan-carbon quantum dot composite film modified electrode and an application of the chitosan-carbon quantum dot composite film modified electrode to electrochemical identification of a tryptophan enantiomer. A method for identifying the tryptophan enantiomer comprises the following steps: preparing carbon quantum dots, preparing the chitosan-carbon quantum dot composite film modified electrode, and identifying the tryptophan enantiomer with an electrochemical method. The preparation and the application have the benefits that a preparation method of the chitosan-carbon quantum dot composite film modified electrode is simple, convenient and feasible, a preparation process is environment-friendly and pollution-free, and the identification efficiency of the composite film modified electrode to the tryptophan enantiomer is greatly improved in comparison with that of a chitosan modified electrode to the tryptophan enantiomer.

The invention relates to one-step synthesis of nitrogen-sulfur co-doped graphene airgel and its electro-adsorption removal of various heavy metal ions, comprising the following steps: preparing nitrogen-sulfur co-doped graphene airgel, preparing nitrogen-sulfur co-doped Graphene airgel paper electrode, under the three-electrode system, conducts electrosorption of various heavy metal ions through the paper electrode. The beneficial effects of the present invention are: the preparation method of nitrogen-sulfur co-doped graphene airgel is simple and easy, the preparation process is environmentally friendly and pollution-free, and the electrode modified with these materials has high adsorption efficiency, fast speed and easy operation for heavy metal ions in water , and compared the electrosorption effects of various heavy metal ions.

The invention discloses a ZnSe quantum dot and xanthan gum nanocomposite, an electrode for detecting Cd<2+> and / or Cu<2+> and a method for detecting the Cd<2+> and / or Cu<2+>, and belongs to the technical field of electrochemical analysis detection. The ZnSe quantum dot and xanthan gum nanocomposite is prepared from a xanthan gum solution and ZnSe quantum dots (ZnSe QDs) under the action of ultrasonic dispersion. A preparation method of an electrode modified by the ZnSe quantum dot and xanthan gum nanocomposite comprises: dispensing a solution of the ZnSe quantum dot and xanthan gum nanocomposite to the surface of an MWCNT / GC electrode; carrying out drying to prepare the electrode. The ZnSe quantum dot and xanthan gum nanocomposite, the electrode and the method which are disclosed by the invention have the beneficial effects that: the ZnSe quantum dot and xanthan gum nanocomposite is simple in preparation method and has no pollution, and the prepared composite modified electrode can implement simultaneous and respective detection on cadmium and copper ions; a chemical sensor using the electrode has the advantages of high stability, good reproducibility, high interference resistance, low detection limit and the like.

The invention discloses a preparation method and an application of a FeS2 / g-C3N4 heterojunction material. The preparation method comprises steps as follows: melamine is added to a tubular furnace andcalcined, and g-C3N4 is prepared; besides, FeSO4.7H2O, Na2S2O3.5H2O, powdered sulfur and deionized water are added to a reaction kettle and subjected to a hydrothermal reaction, FeS2 is prepared, theproduct is repeatedly washed with dilute sulfuric acid, carbon disulfide and deionized water, finally, g-C3N4 and FeS2 in a certain ratio are dissolved in a methanol solution, the mixed solution is subjected to ultrasonic bath, water-bath heating is performed to volatilize methanol, an obtained product is calcined in a muffle furnace, and the FeS2 / g-C3N4 heterojunction material can be prepared. The preparation method has a simple process and is pollution-free, low in manufacturing cost and environmentally friendly, and a prepared composite catalyst has a good treatment effect.

The invention discloses a trimming and shaping die for combined type automobile parts. The trimming and shaping die comprises the following raw materials in percentage by weight: 1.8%-3.2% of Al, 1%-2% of Zn, 1.2%-1.8% of Zr, 2.8%-5.5% of Ni, 0.3%-0.8% of Mn, 3%-6.8% of Sn, 0.2%-0.35% of P, 2.2%-3% of Si, 0.1%-0.3% of rare earth, 2.8%-3.5% of an additive and the balance of Cu. The trimming and shaping die for combined type automobile parts provided by the invention has the benefits as follows: both the rigidity and strength are high, the wear resistance and fatigue resistance are good, and the toughness is high; besides, the formula is reasonable, the combination property of the obtained trimming and shaping die is effectively ensured by strictly controlling the raw material ratio, the production cost is controlled, the preparation method is simple, the service life of the obtained trimming and shaping die is long, the trimming and shaping die is used for the processing of combined type automobile parts, the precision is high, the passing rate of finished products is high, and the trimming and shaping die is worth to be popularized.

The invention relates to chitosan-modified glassy carbon electrode-based selective recognition of a tryptophan enantiomer containing zinc ion, comprising the following steps: preparation of alkali-treated chitosan (CS)-modified glassy carbon electrode (GCE) (CS / GCE) and selective recognition of a metal ion-containing tryptophan enantiomer (Zn(II)-L / D-Trp). The invention has beneficial effects as follows: the chitosan-modified electrode is simple and feasible to prepare and the preparation process is environmentally friendly and pollution-free; and the modified electrode has high recognition efficiency of tryptophan enantiomer, has short recognition time and is simple to operate.

The invention discloses an anti-corrosive high-temperature-resisting macromolecular electric force compounded grease composition and a synthetic method thereof. The electric force compounded grease composition is prepared from, by weight, 30-40 parts of lubrication base oil, 5-10 parts of nanometer silica powder, 2-8 parts of bentonite, 5-12 parts of polyacrylic acid, 8-17 parts of calcium sulfurized alkyl phenate, 4-12 parts of tetrabutylammonium bromide, 10-17 parts of high-alcohol sesquialter acid ester, 3-8 parts of antioxygen, 5-12 parts of conductive agent, 3-10 parts of anticorrosive, 5-12 parts of antistatic agent, and 3-12 parts of flame retarding agent. The composition is simple in preparation technique and environment-friendly in preparation process; the prepared electric force compounded grease can enhance the conductivity, corrosion resistance and anti-static function of the electric cable; therefore, the electric force compounded grease composition is very suitable for using under a hostile environment.

The invention discloses an environment-friendly self-curing epoxy resin adhesive and a preparation method thereof. The adhesive is prepared from the following components in parts by weight: 30 to 50 parts of fluororubber, 10 to 20 parts of modified epoxide resin, 10 to 20 parts of perchloro-ethylene resin, 5 to 15 parts of polyvinyl alcohol, 4 to 12 parts of methylcellulose, 8 to 14 parts of percarbamide, 4 to 12 parts of potassium hydroxide, 5 to 10 parts of epoxy chloropropane, 4 to 12 parts of methacrylic acid, 8 to 20 parts of dianthus chinensis extracting solution and 4 to 10 parts of turpentine. The preparation method disclosed by the invention is simple; the preparation process is environment-friendly and pollution-free; the prepared adhesive has the advantages of oil resistance, good corrosion resistance, high adhesion as well as no toxicity and no irritating odor.

The invention discloses a molding curing agent. The raw materials of the molding curing agent comprise the ingredients of, by weight, 10-20 parts of phenolic resin, 8-18 parts of polyvinyl butyral, 4-12 parts of polyvinyl alcohol, 5-10 parts of water soluble silicone oil, 3-8 parts of triethanolamine, 10-20 parts of polyacrylamide, 2-8 parts of cocoanut oil amine, 5-15 parts of paraffin oil, 4-12parts of carboxymethylcellulose, 4-10 parts of acrylic resin powder, 3-9 parts of titanium dioxide, 6-12 parts of molybdenum disulfide and 20-30 parts of deionized water. The invention further discloses application of the prepared molding curing agent in 3D printing coated sand molding. By means of the prepared molding curing agent, the bonding strength of coated sand can be improved, the heat resistance, aging resistance and other weather abilities of the coated sand are improved, and the service life of the coated sand is prolonged.

The invention discloses a thermal insulation wall material and a manufacturing process thereof. The thermal insulation wall material is prepared from, by weight, 200-250 parts of inorganic raw materials, 3.8-21.4 parts of polystyrene particles and 63-250 parts of water. A mixture of the raw material compositions is pressurized and heated in a mold, and demolding is conducted. The thermal insulation wall material product is high in compressive strength, fireproof and good in thermal insulation performance.

The invention discloses a high-efficiency and environment-friendly flame retardant and a preparation process thereof. The flame retardant components include 10-20 parts of oxalic acid, 5-15 parts of decabromodiphenylethane, and 3-10 parts of triphenyl phosphate in parts by weight. 2-8 parts of magnesium oxide, 3-10 parts of antimony trioxide, 5-10 parts of diatomaceous earth, 10-20 parts of expanded graphite, 3-8 parts of silane coupling agent, 2-8 parts of ultrafine zinc borate , 5-15 parts of carbonizing agent, 2-10 parts of penetrating agent, 3-10 parts of tartaric acid, the preparation process of the present invention is simple, the preparation process is environmentally friendly and pollution-free, and the prepared flame retardant has good flame retardant effect, and will not release toxic, harmful materials.

The invention discloses high-strength wear-resistant fiber reinforced plastic. The high-strength wear-resistant fiber reinforced plastic is prepared from, by weight, 15-25 parts of polypropylene, 10-20 parts of epoxy resin, 10-30 parts of nano ceramic particles, 2-8 parts of a silane coupling agent, 5-10 parts of cyclohexanone, 2-6 parts of zirconium oxide and 15-25 parts of a wear-resistant agent. Technical simplicity, environmental friendliness and freeness of pollution in a preparation process are realized, fiber reinforced plastic prepared according to the method is high in wear resistance and has advantages of corrosion resistance and high temperature resistance, and service lives of fiber reinforced plastic cables can be prolonged.

The present invention discloses a red bean flavor honey powder for maintaining beauty and keeping young and a preparation method thereof. The honey powder comprises the raw materials of honey, red beans, tremella powder, walnut kernel, kelp powder, Chinese olive, mango, coconut oil, purple potato, peach gum, apple powder, tomato powder, Cornus officinalis, American ginseng and bird's nest powder. The present invention has the beneficial effects that the preparation is environmentally friendly; red beans not only taste sweet, but also have the effects of invigorating spleen, stopping diarrhea, tonifying, preserving health, and maintaining beauty; the added nourishing ingredients of tremella powder, walnut kernel and tomato powder have efficacies of whitening, moisturizing the skin, maintaining beauty and keeping young.

The invention relates to a method for removing hard calcium ions in water through an S element modified graphene electrode. The method comprises the following steps: preparing sulfur-doping graphene aerogel, preparing a sulfur-doping graphene aerogel paper electrode, and adsorbing different calcium ions through the paper electrode under a three-electrode system. The method for removing the hard calcium ions in the water through the S element modified graphene electrode has the beneficial effects: the preparation method of the sulfur-doping graphene aerogel is simple, convenient and feasible, the preparation process is environmentally-friendly without pollution, the electrode modified by those materials has high adsorption efficiency and speed to the calcium ions in the water and has simple and convenient adsorption operations, and a hardness problem of the water can be effectively reduced.

The present invention discloses a composite emulsifier and a preparation method thereof, wherein the emulsifier comprises, by weight, 10-30 parts of allyl alcohol polyether, 8-15 parts of ethylene glycol, 2-8 parts of alkylolamide, 3-10 parts of isopropanol, 5-15 parts of n-decanol, 7-17 parts of sodium dodecylbenzene sulfonate, 8-18 parts of sodium bicarbonate, 4-10 parts of polyethylene glycol, and 2-8 parts of a co-solvent. According to the present invention, the preparation process is simple, the preparation is environmentally friendly and non-pollution, and the prepared emulsifier can promote gasoline or diesel to combust, and has remarkable energy saving and environmental protection effect.

The invention discloses a curling-resisting heat sublimation transfer printing film. The curling-resisting heat sublimation transfer printing film comprises a base film, the front face of the base film is coated with a first coating, the rear face of the base film is coated with a second coating, and the first coating comprises, by weight, 2 parts to 10 parts of starch, 10 parts to 20 parts of cellulose, 2 parts to 8 parts of polyvinyl alcohol, 4 parts to 12 parts of glycerinum, 8 parts to 15 parts of silicon dioxide, 8 parts to 16 parts of barium sulfate, 7 parts to 20 parts of aluminum oxide, 8 parts to 18 parts of titanium dioxide, 10 parts to 25 parts of calcium carbonate and 4 parts to 15 parts of polyvinyl chloride resin; the second coating comprises, by weight, 10 parts to 20 parts of starch, 10 parts to 18 parts of titanium dioxide, 4 parts to 10 parts of bentonite powder and 1 part to 4 parts of nano-silver ion powder. The preparing technology is novel, the preparing process is environment-friendly and free of pollution, the prepared transfer printing film is high in curling-resisting performance, and the transferring efficiency can be improved.

The invention discloses a reproducible building insulation material and a preparation method thereof. The insulation material comprises the following components in parts by weight: 10-20 parts of bentonite, 5-10 parts of powdered steatile, 10-18 parts of expanded perlite, 3-10 parts of centrifugal glass fiber, 2-8 parts of hydroxymethyl propyl cellulose, 6-12 parts of magnesium oxide, 6-16 parts of expanded vermiculite, 3-10 parts of constructional negative ion powder, 2-10 parts of kaolin, 10-20 parts of a silane coupling agent, 5-15 parts of active silica micropowder, and 12-25 parts of an acrylic acid-vinylidene chloride emulsion. The preparation method is simple, the preparation process has the advantages of environmental protection and no pollution, the produced insulation material has good environmental protection performance, has certain insulation effect, has excellent anti-compression, impact-resistant capability and long usage life.

The invention relates to a preparation method of a 4-tertiary butyl calix(4)arene modified electrode applied to an electrochemical method to recognize an amino acid enantiomer. The preparation methodcomprises the following steps of preparing a 4-tertiary butyl calix(4)arene modified electrode and recognizing the amino acid enantiomer through the electrochemical method. The preparation method disclosed by the invention has the beneficial effects that the 4-tertiary butyl calix(4)arene modified electrode preparation method is simple, convenient, easy and practical, a preparation process achieves environmental friendliness and has no pollution, and furthermore, the modified electrode can recognize the amino acid enantiomer in high efficiency.

The invention discloses an electrochemical sensor capable of simultaneously detecting glucose and uric acid, and belongs to the technical field of detection. Through pretreatment of the sensor electrode, the surface of the sensor electrode is rich in-OH groups, and the cleaning and activating capability of the electrode is improved. In the modification material of the sensor electrode, the gold nanoparticles have large specific surface area and excellent conductivity and catalytic ability, the catalytic ability to glucose or uric acid is enhanced, the gradient polyacrylamide gel realizes enrichment and separation of the to-be-detected substance glucose or uric acid, quantitative detection of a single component can be realized, and the specific surface area of the to-be-detected substance glucose or uric acid is increased. The sensor test paper can be used for simultaneously detecting two components, solves the technical problem that commercial sensor test paper cannot be used universally, provides more thoughts for medical diagnosis methods, and has a very wide application prospect.

The invention provides rose and lemon honey cake, which is prepared from the following ingredients in parts by weight: 200 to 230 parts of glutinous rice flour, 60 to 70 parts of pineapple powder, 25 to 35 parts of yolk powder, 35 to 40 parts of almonds, 45 to 50 parts of peanuts, 35 to 45 parts of lemon, 25 to 30 parts of dark plums, 60 to 70 parts of yoghourt, 8 to 10 parts of black tea, 10 to 13 parts of rose, 8 to 10 parts of mint, 5 to 7 parts of sepium, 4 to 6 parts of bletilla striata, 4 to 5 parts of radices pseudoginseng, 3 to 5 parts of fructus evodiae, 2 to 3 parts of lycopus lucidus and the like. The rose and lemon honey cake provided by the invention has the advantages that the preparing process achieves environment-friendly and pollution-free effects; the rose and lemon honey cake is processed by adopting natural food materials; fruits such as the lemon and the dark plums are added, so a good oxidation-resistant effect and a good radiation-resistant effect are achieved; through the addition of extracts of the rose, the mint, the sepium, the bletilla striata, the radices pseudoginseng and the like, certain effects of astringency, hemostasis and radiation resistance are achieved; and the rose and lemon honey cake is particularly suitable for people working and studying under the radiation effect for a long time to eat.

The invention discloses an environment-friendly thermal-sublimation coating material. The environment-friendly thermal-sublimation coating material comprises the following components in parts by weight: 20-40 parts of carboxymethylcellulose, 5-15 parts of starch, 10-18 parts of polyacrylamide, 10-20 parts of polysaccharides and polysaccharide derivatives, 15-25 parts of polycitric acid and polyethylene glycol-citric acid copolymer, 8-15 parts of silicon dioxide, 5-10 parts of barium sulphate, 5-10 parts of alumina, 4-12 parts of titanium dioxide, 5-12 parts of kaolin, 8-17 parts of calcium carbonate, 3-10 parts of bentonite powder and 1-4 parts of nano-silver ion powder. The environment-friendly thermal-sublimation coating material disclosed by the invention is simple in production process, and environment-friendly and pollution-free in preparation process; and the prepared coating material enables the various indexes of finished paper to meet the requirements of high-fidelity sublimation transfer printing, is bright in colour, excellent in colour fixation and high in transfer rate, and ensures the high definition and reality of the original colour pattern.

The invention discloses a catalyst composition for waste rubber thermocracking. The catalyst composition comprises, by weight, 5-25parts of aluminum binder, 10-35 parts of zirconia, 15-55 parts of natural mineral, 10-30 parts of clay, 5-20 parts of tridecyl trimethyl ammonium bromide, 8-20 parts of citric acid and 10-30 parts of anhydrous alcohol. The catalyst composition is simple in preparation process, environment-friendly and pollution-free in preparation process and high in stability and can effectively improving waste rubber thermocracking efficiency while improving yield and quality of oil products obtained by thermocracking.

The invention discloses a special treatment agent for domestic sewage and a preparation method of the special treatment agent. The special treatment agent is prepared from the following components in parts by weight: 10 to 20 parts of lime, 20 to 50 parts of carbon adsorbent, 10 to 20 parts of liquid water glass, 15 to 30 parts of polyacrylamide, 10 to 30 parts of bentonite, 13 to 20 parts of peracetic acid, 10 to 20 parts of chromium trioxide, 7 to 15 parts of polyhexamethylene biguanidine, 4 to 10 parts of microcrystalline cellulose, 10 to 20 parts of nano calcium carbonate, 7 to 20 parts of dithiocarbamic acid and 5 to 15 parts of amino compound. The preparation method is simple, the preparation process is environment-friendly and pollution-free, and the prepared treatment agent can filter impurities in the sewage such as heavy metal and microorganisms, can also sterilize and disinfect the filtered water, and is good in environmental protection effect.

The invention relates to a method for removing ferric ion in water by using N element modified graphene electrode. which comprises the following steps: preparing a nitrogen doped graphene aerogel, preparing a nitrogen doped graphene aerogel electrode, and adsorbing and desorbing iron ions on in water by regulation of the voltage on the electrodes. The invention has the following beneficial effects: the preparation method of the nitrogen doped graphene aerogel is simple; the preparation process has no environmental pollution; the electrode modified by the material has high adsorption efficiency, high speed and simple operation on iron ions in water; and the recycling performance of material has increased dramatically compared with the material in the prior art.

The invention discloses an environment-friendly type paint additive and a preparation technology of the environment-friendly type paint additive. The additive is prepared from the following components in parts by weight: 10 to 20 parts of polysiloxane, 4 to 12 parts of hydroxyethyl cellulose, 4 to 12 parts of epoxy resin, 3 to 8 parts of nano-grade silicon micro-powder, 5 to 15 parts of nano zinc oxide, 3 to 8 parts of nano aluminum oxide, 10 to 20 parts of sodium alginate, 2 to 8 parts of barium sulfate, 2 to 8 parts of calcium carbonate, 5 to 12 parts of fatty alcohol polyoxyethylene ether and 1 to 4 parts of glass fiber. The preparation technology disclosed by the invention is simple and a preparation process is environmentally friendly and has no pollution; the prepared paint additive can be used for reducing dangers, caused by paint, to environment and human bodies.

The invention discloses an adhesive for dye-sublimation transfer printing, and a synthesis process thereof. The adhesive comprises the following components in parts by weight: 40-60 parts of bisphenol-A epoxy resin, 10-20 parts of polyurethane resin, 3-8 parts of flexibilizer, 3-8 parts of sodium acrylate, 3-10 parts of glycerol, 5-12 parts of ethylene-vinlacetate copolymer, 5-12 parts of oil-absorbing filler, 3-8 parts of organic bentonite, 4-10 parts of kaolin, 2-8 parts of antioxidant, 5-15 parts of ethylene glycol and 1-4 parts of nano-silicon dioxide. The preparation method disclosed by the invention is simple, and environment-friendly and pollution-free in preparation process; and the prepared adhesive is high in adhesion force, and excellent in high-temperature resistance and scratch resistance.

The invention relates to a method for removing manganese ions in water by using an N-S element synergetic modified graphene electrode. The method comprises the following steps: preparing N-S co-doped graphene aerogel, preparing an N-S co-doped graphene aerogel paper electrode, and carrying out electro-adsorption on the multiple manganese ions by means of the paper electrode under a three-electrode system. The method has the beneficial effects that the preparation method of the N-S co-doped graphene aerogel is simple, convenient and easy to implement, and the preparation process is environmentally friendly and free from pollution; the electrode modified by the materials is high in absorption efficiency and rapid in absorption speed for the manganese ions in the water, is simple and convenient to operate, and is capable of effectively removing the manganese ions in the water.