48results about How to "Use non-toxic" patented technology

The present invention discloses process of synthesizing expanded granular profile control agent with oil production mud, and the synthesized profile control agent is used in the deep profile control of macroporous oil reservoir. The expanded granular profile control agent is prepared with ternary polymer system of acrylic acid, acrylamide and cross-linking agent and through adding oil production mud, oxidant and reductant in certain weight proportion to produce adiabatic free radical polymerization forming colloid block and subsequent palletizing, stoving and crushing to required granularity. The said process changes the oil production mud into useful resource and the prepared expanded granular profile control agent has the features of heat resistance, salt tolerance, high expanding performance, long stable period, etc.

The invention provides an energy-saving environmentally-friendly phase change energy storage material which is prepared by the following steps of: adding capric acid and lauric acid to a sealed mixer to prepare a ternary composite phase change material; internally mixing ethylene-propylene diene copolymer and the ternary composite phase change material; discharging the material after internal mixing into an extruder, and extruding to obtain sheets; carrying out irradiation cross-linking on the extruded sheets; and crushing the cross-linked thermosetting polymer sheets by an ultralow-temperature crusher to obtain the energy-saving environmentally-friendly phase change energy storage material. The obtained material has a better coating effect than microcapsules, is low in production cost and easy in process control, can be prepared into a filling power material, and can be added to multiple materials. The product has phase change temperature about 23 DEG C, can be cycled for a long term, is nontoxic in use and is harmless to a human body. The material can be added to a polymer-based composite material, and can be prepared into phase change automobile internal decoration materials, automobile mattress, heat storage temperature-adjusting floors, building phase change wall interlayers, inner wall phase change heat-insulating materials, phase change wallpaper, bedclothes, phase change coatings and the like.

The invention discloses Chinese herbal medicine fumigants and particularly discloses a Chinese herbal medicine fumigant for controlling postharvest diseases of garlic stems. The Chinese herbal medicine fumigant is characterized by comprising the following steps of: a Chinese herbal medicine, a fuel, a combustion improver and auxiliaries, wherein the Chinese herbal medicine comprises one or more of Chinese magnoliavine fruit, divaricate saposhnikovia root, rhubarb, wrinkled gianthyssop herb, manchurian wildginger, lightyellow sophora root, flos caryophyllata, siberian cocklour fruit, liquoric root, tatarian aster root, cassia bark, biond magnolia flower and golden thread, wherein the Chinese herbal medicine accounts for 5-50%, the fuel accounts for 0-40%, the combustion improver accounts for 5-50% and the auxiliaries account for 5-84%. The fumigant has the advantages of being simple to use, immediate in burning after ignition, fast in smoke generation, wide in smoke spreading, good in fresh-keeping effect, free from dead angles, non-toxic in use, safe and free from residues.

The invention relates to a preservation method of blueberry fruits, which is carried out according to the following steps of: (1) picking and removing rotten fruits; (2) placing blueberry fruits into aseptic polished round-grained rice water, soaking for 5 to 15min, and carrying out air-drying and refrigeration; (3) then placing the blueberry fruits into a preservative, soaking for 40 to 150s, and air-drying; (4) packaging the blueberry fruits with a packaging box with lime powder and activated carbon, and carrying out refrigeration storage. The preservation method of the blueberry fruits, which is disclosed by the invention, is safe and non-toxic to use, obviously prolongs preservation time of the blueberry fruits, reduces rot, shrinking and softening of the blueberry fruits, ensures crispness, taste and quality of blueberries, and has a wide market application prospect.

The invention provides a water-retaining agent for shrimps. The water-retaining agent is prepared from the following raw materials in weight parts: 30 to 50 parts of modified starch, 20 to 30 parts of an anti-oxidant, 5 to 10 parts of a food acidity regulator, 2 to 4 parts of mannitol, 1 to 2 parts of lactitol and 2 to 4 parts of aminoacetic acid. The water-retaining agent provided in the invention enables water retention, weight gain, antioxidation, color protection during bleaching, texture improvement and color stabilization for shrimp products to be realized and is safe, nontoxic and harmless when used.

The invention relates to an aquatic product preservative, and the aquatic product preservative is prepared by mixing the following raw materials in parts by weight: 30-40 parts of modified starch, 30-40 parts of a food acidity regulator, 10-20 parts of mannitol, 5-8 parts of trehalose, 10-15 parts of sodium alginate, 1-3 parts of lactitol and 2-4 parts of glycine; according to the aquatic product preservative, cooked food can be fully combined with water molecules to form a chelate protective film on the surface of the cooked food, so that moisture of the an aquatic product can be effectively prevented from losing in processing, refrigerating and cooking processes, and the purposes of preservation and weight increment can be achieved.

The invention discloses a contact lens care solution. The contact lens care solution comprises ectoin or an eye science acceptable ectoin derivative, a surfactant, an antibacterial agent, a humectant,a buffer agent, an osmotic pressure regulator and a chelating agent. The invention further provides a preparation method of the contact lens care solution. According to the contact lens care solutionprovided by the invention, the moisturizing and lubricating performance of contact lenses can be improved, the wearing comfort is improved, a repairing effect is achieved, and the phenomena of redness, swelling, inflammation and the like caused by long-term wearing of the contact lenses can be eliminated.

The invention provides a cleaning agent for a water-based electronic industrial flux, as well as a preparation method and a using method thereof. The cleaning agent is prepared from a high-boiling-point ethanol-ether solvent, N-methyl-2-pyrrolidone, a nonionic surfactant, ethanol, water, a polyether polysiloxane nano-defoaming agent, water-soluble nano-silicon dioxide and ethanol amine. The preparation method comprises the following concrete steps: adding the high-boiling-point ethanol-ether solvent, N-methyl-2-pyrrolidone, and ethanol into a reaction kettle; heating and uniformly stirring; sequentially adding the nonionic surfactant and water, and stirring at a high speed; and finally adding the polyether polysiloxane nano-defoaming agent, water-soluble nano-silicon dioxide and ethanol amine, uniformly dispersing, cooling to room temperature, and standing to obtain the cleaning agent for water-based electronic industrial flux. The using method comprises the following steps: acting the diluted cleaning agent for a water-based electronic industrial flux to the surface of a part requiring washing at normal temperature, performing circulating effect in forward and backward directions, and performing pure water flushing and air drying to obtain a clean part.

The invention discloses a safe water retention agent for aquatic products. The safe water retention agent is prepared from, by weight, 30-40 parts of protease, 10-15 parts of tea polyphenols, 3-5 parts of glycine, 2-6 parts of trehalose, 5-8 parts of chitosan, 2-4 parts of food acidity regulator, 5-10 parts of heartleaf houttuynia herb, and 12-18 parts of lemon peel. The safe water retention agent for the aquatic products has the advantages that the food acidity regulator can adjust the pH value, the usage is safe, nontoxic and harmless, the safe water retention agent is mainly used in the water products for retaining water and freshness and preventing spoilage, heartleaf houttuynia herb is added, the stability of the aquatic products is improved, the interior water binding capacity of food is maintained, meat is tenderized, and the shape, flavor, mouthfeel, color and luster of the food are improved.

The invention provides an air purifying filter net having formaldehyde-removing and antimicrobial functions. The filter net comprises a paper honeycomb carrier on which a chemical reagent is arranged, wherein the chemical regent is prepared from the following components in parts by mass: 12 parts of absolute ethyl alcohol, 70 parts of TiO2, 12 parts of wood carbon powder and 6 parts of photocatalyst powder. A preparation method of the chemical reagent comprises the following steps: putting the 12 parts of absolute ethyl alcohol into a container first; then adding the 70 parts of TiO2, the 12 parts of wood carbon powder and the 6 parts of photocatalyst powder inside the container, and uniformly stirring, wherein the specification of the wood carbon powder is 200 meshes and the specification of the photocatalyst is 20nm. The invention further provides a preparation method of the filter net. The air purifying filter net has the formaldehyde-removing and antimicrobial capabilities, and is non-toxic in use, high in safety, good in stability, fast to take effect, low in maintenance cost and low in energy consumption. After testing, the filter net provided by the invention can adsorb 94.7 percent of formaldehyde and achieve an antimicrobial effect of 99.85 percent.

The invention discloses a production method of a waterproof and freezing-tolerant white emulsion. The production method comprises the following steps: mixing dibutyl phthalate with octyl alcohol, and stirring till the dibutyl phthalate and the octyl alcohol are dissolved for later use; adding water into a reaction kettle with a jacket, heating to 60 to 80 DEG C, adding polyvinyl alcohol during stirring, heating to 90 DEG C, and preserving the heat till the polyvinyl alcohol is completely dissolved; injecting cold water into the jacket of the reaction kettle to cool the liquid in the kettle to 66 to 69 DEG C, and adding vinyl acetate during stirring; adding the octyl alcohol solution of the dibutyl phthalate into the reaction kettle, then adding ammonium persulfate, performing uniform stirring, mixing the components at 66 to 69 DEG C for 1 to 2 hours, so as to obtain white viscous vinyl acetate white emulsion, and packaging the white emulsion with a glass bottle or a plastic bottle. According to the production method of the waterproof and freezing-tolerant white emulsion, the production process of common white emulsion is improved; by adding of a modifier, the modified white emulsion which is not gelatinized at low temperature is obtained; when compared with the common white emulsion, the modified white emulsion has the advantage that the water resistance, the heat resistance and the freezing tolerance are all obviously improved.

The invention relates to an emulsifiable paste for removing acnes, belonging to the chemical industry field of products for daily use. The emulsifiable paste comprises glycerin, stearin, glycerol, metronidazole, deionized water, white oil, vitamin E and a little preservative. The emulsifiable paste for removing acnes can cure and repair skin infection caused by a plurality of strains, such as fungus infection and propionibacterium acnes, etc; simultaneously, the emulsifiable paste can desalt and remove acnes and acne scars leaving for a long time. After using the emulsifiable paste, the acnes are not easy to reappear; the emulsifiable paste has no side effect, is safe to use, non-toxic and does not hurt the skin; simultaneously, the paste can improve skin and has nourishing and smoothing effects.

The invention discloses a method for extracting and separating high-purity phlorizin from Cynomorium songaricum. The method comprises the following steps: (1) smashing dry Cynomorium songaricum for later use; (2) adding water, and filtering to obtain filtrate after extraction; (3) treating the obtained filtrate with a D101 macroporous adsorption resin exchange resin, eluting with an eluting liquid, collecting and concentrating the eluant; (4) repeatedly extracting the concentrated eluant, and then, concentrating supernatant extract liquor, thus obtaining a crude phlorizin product; (5) dissolving the crude phlorizin product with ethyl acetate, adding weakly acidic activated carbon, filtering while hot, cooling and crystallizing to obtain crude phlorizin crystals; (6) adding ethyl acetate into the crude phlorizin crystals, concentrating and cooling the crystals to obtain the phlorizin product. According to the method, requirements on environment condition are not high in the whole separation process, separation time is relatively short, and purity is very high. Separation materials are easy to obtain and cheap, and operation process of separation is simple and easy to control; the ethyl acetate is used for crystallization and recrystallization, so that purification efficiency is high; the reagents used are non-toxic.

The invention provides a reagent for digesting nucleic acid pollution, and a preparation method and application of the reagent. The reagent for digesting nucleic acid pollution comprises a solution Aand a solution B, wherein the solution A is a hydrogen peroxide solution with a mass content of 0.2-0.4%, the solution B is a mixed solution of metal ions and a buffer agent, the concentration of themetal ions in the mixed solution is 0.5-1.5 mM, the concentration of the buffer agent is 3-5 mM, and the pH value of the mixed solution is 7.0-8.0. The reagent provided by the invention can flexibly treat various nucleic acid pollutants in reagents, buffer solutions and equipment in laboratories, and has the advantages of short treatment time, good nucleic acid pollution elimination effect, no toxicity in use and wide application range.

The invention provides a bellyband for treating infantile diarrhea. The bellyband comprises the following traditional Chinese medicines in parts by weight according to a preferable ratio: 40g of pomegranate bark, 110g of rhizoma atractylodis, 85g of mangnolia officinalis, 55g of dried tangerine or orange peel, 60g of honey-fried licorice root and 40g of cinnamon. The preparation method comprises the following steps: manually rubbing the traditional Chinese medicines, stirring the medicines into powder, packing the powder by using cotton yarn, and filling the packed powder into a bellyband, wherein the traditional Chinese medicine cotton yarn is removed or replaced when the bellyband is cleaned each time. The traditional Chinese medicine bellyband has the advantages of reasonable components, fast effectiveness, good curative effect, stable medical effect, convenience in infantile use, no toxic or side effect and low recurrence rate.

The invention discloses a lithium ion battery. The lithium ion battery comprises a metal outer shell, an insulated inner shell, a positive electrode plate and a negative electrode plate, wherein the insulated inner shell is arranged in the metal outer shell; the insulated inner shell is connected with the metal outer shell by glue; a polyvinylidene fluoride diaphragm is arranged on the outer side of the positive electrode plate; the positive electrode plate, the polyvinylidene fluoride diaphragm and the negative electrode plate are connected by glue in sequence from inside to outside; an insulated tape is arranged on the outer side of the negative electrode plate; the insulated tape is connected with the positive electrode plate, the polyvinylidene fluoride diaphragm and the negative electrode plate by glue; the insulated inner shell is provided with an electrolyte solution; the electrolyte solution is a propylene carbonate electrolyte solution; a solution injection hole and tabs are arranged on the metal outer shell; and the solution injection hole is communicated with the insulated inner shell. The lithium ion battery is good in heat dissipation effect, long in service life, stable and reliable in structure and convenient to maintain.

The invention discloses a method for removing melanin in a tissue, and the method comprises the following steps: slicing a tissue specimen to be processed, then placing the tissue specimen in a solution containing trichloroisocyanuric acid as an effective component, decoloring for 20-30min, washing with water to complete removal of the melanin in the tissue. The method finds for the first time that during the preparation of pathological tissue sections, the melanin deposited in the tissue specimen can be quickly removed by use of a low concentration of solution containing the trichloroisocyanuric acid, removal conditions are mild, and the removal of the melanin can be carried out at normal temperature without heating of increase of remover concentration.

The invention discloses a 2,3,4,5,2',3',4',5'-octaaryl spiro silole four-anion compound with a structure represented by a formula (I), wherein Ar is C6-C10 aryl or substituted aryl, preferably one selected from phenyl, 2,6-dimethyl phenyl and 2,6-diisopropyl phenyl. According to the present invention, with the application of the compound as a reducing agent in diquinone, bis(triphenylphosphine)palladium dichloride, methyl iodide and an oxygen system, the compound shows efficient reducing performance, and the reducing agent is good in thermal stability, solubility and chemical stability; the preparation method has characteristics of simpleness and high yield; and the product has characteristics of safe use, no toxicity, no odor and environmental protection, and has wide application prospectin homogeneous reducing agents. The invention further discloses a preparation method and applications of the aryl spiro silole four-anion compound.

The invention discloses preparation of environment-friendly and moderate hand lotion. The environment-friendly and moderate hand lotion is prepared from the following ingredients in parts by weight: 14-18 parts of alkyl glycoside, 1-3 parts of NaCl, 1-2 parts of glycerine, 1-2 parts of plant extract I, 1-2 parts of plant extract II, 0.3-0.5 part of flavoring essence and the balance of water. Compared with the prior art, the preparation has the following advantages that the formula is simple; the hand lotion is non-toxic and harmless and is free of irritation to skin; the hand lotion has a good washing effect on hand dirt and has the effects of preserving moisture, replenishing water, inhibiting bacteria, and the like; the hand lotion is readily biodegrade and environmentally friendly.