36 results about "Acid gel" patented technology

The present invention relates to a kind of hyaluronic acid gel and its preparation method, it is to deproteinize the hyaluronic acid, then select the glycidyl ether accounting for 1-10% of the weight of the hyaluronic acid in acidic or alkaline environment at 15 Under the condition of -35°C, react at constant temperature for 2-24 hours to prepare hyaluronic acid gel. Because the present invention adds pre-treatment to the hyaluronic acid raw material, the prepared gel is colorless and transparent, and prevents the growth of some harmful bacteria, so it can be stored for a long time: and the range of water absorption rate of the product prepared by the present invention is the best: Simultaneously, the reaction condition of the present invention is mild, effectively prevents chain scission and degradation of the hyaluronic acid raw material, and improves product quality.

The invention discloses a clean viscous acid for acid fracturing of a carbonate reservoir, which is applied to the technical fields of acidification and acid fracturing of petroleum carbonate reservoirs. The clean viscous acid consists of the following components in percentage by weight: 3-7 percent of hexadecyl trimethyl ammonium bromide, 0.3-0.7 percent of sodium salicylate, 15-28 percent of hydrochloric acid, 0.125-0.25 percent of citric acid or 0.05-0.1 percent of CX-301 or 0.3-0.5 percent of TW-1 serving as an iron ion stabilizing agent, 0.2-0.25 percent of a diimidazoline quaternary ammonium salt and the balance of water. The clean viscous acid has high retardative property, the retarding rate can reach 42-56 percent, the fresh acid viscosity is 25-40 mPa.S, and the acid liquor viscosity rises during acid fracturing of the carbonate reservoir. When the hydrogen ion concentration falls till the pH is more than or equal to 2, the acid liquor viscosity rises for forming viscoelastic gel, the permeation resistance of an acid liquor in a high permeation layer is increased, and the length of an acid etching crack is prolonged. Reacted residual acid gel can undergo gel breaking automatically, is free from residues, is easy for discharging, and has small damage to stratums.

The invention discloses a preparation method of a fruity acid gel, and especially relates to a production method of a protein emulsion gel. The method consists of: a first step: dispersing casein in distilled water according to a solid-liquid ratio of 0.2-0.4:10, performing hydration for 1-2h, and adding a 0.8% sodium hydroxide solution to conduct regulation so as to obtain a protein dispersion solution; a second step: adding transglutaminase into the protein dispersion solution in terms of 0.8-1g of transglutaminase to per kilogram of protein, with the protein content of casein being 90%, thus obtaining a novel casein dispersion solution; a third step: mixing the casein dispersion solution with watery cream or vegetable oil in a volume of 1:0.10-0.20, and then performing pre-homogenization treatment to obtain a protein crude emulsion; a fourth step: employing a homogenizer to conduct high-pressure homogenization treatment on the protein crude emulsion once to obtain a protein emulsion; a fifth step: juicing fruits, conducting filtering, and then adding the filtrate into the casein emulsion in a volume ratio of 0.1-1:1; and a sixth step: adding glucolactone powder into the casein emulsion, conducting uniform mixing, and then performing standing for 1-3h, thus obtaining a casein emulsion gel product.

The invention discloses a hyaluronic acid gel composition for hydrolight injection, which contains 1) disulfide bond cross-linked hyaluronic acid, and the content of hyaluronic acid in the gel is not more than 10 mg / mL; and 2) Non-cross-linked hyaluronic acid. The hyaluronic acid gel composition of the present invention has a unique advantage when used in hydro-optic injection, it is easy to inject through the ultra-fine needle of a hydro-optical needle, and can achieve good uniform distribution in the subcutaneous superficial layer without bulging; it works Quick and long-lasting moisturizing effect, can effectively improve skin texture.

The invention relates to the technical field of veterinary drug preparation, particularly to an insecticide for fishing, and a preparation method thereof, wherein the insecticide contains a main drug component and an auxiliary drug component. The preparation method mainly comprises: preparation of glycyrrhetinic acid succinate, preparation of a lignin-based glycyrrhetinic acid gel, preparation of a main drug component, and preparation of an auxiliary drug component. According to the present invention, the microwave-assisted prepared lignin-based glycyrrhetinic acid gel is used to adsorb furfural, and can slowly release the adsorption on the furfural, and the auxiliary drug component can improve ecological balance, such that the toxic-side effect can be reduced and the influence on the ecological balance of the breeding pool water quality can be reduced during the insect disinfestation of the furfural, and the problems that the toxic-side effects of the insecticides in the traditional aquaculture are high, the fish production can be affected, the ecological balance of the water body is damaged, and the like can be solved.

The invention relates to a preparation method of sodium hyaluronate gel. The method comprises that a central control unit adjusts the rotational speed of a motor to control the particle size of the pasty gel, and the central control unit controls the rotation angle of a valve to control the volume of the first dialysate. The duration of dialysis, the central control unit receives the detection data of the pH detector and the osmotic pressure detection device in real time, the central control unit controls and receives the data of the first air bubble detection device to adjust the suction speed of the vacuum pump, and the central control unit receives the data of the second air bubble detection device Adjust the speed of the centrifuge, and the central control unit is connected with the bacteria detection sensor; the central control unit can be adjusted according to the actual detection data parameters during the preparation process, so that the preparation process of sodium hyaluronate gel is efficient, and the calculation is based on the second bubble strength. If the strength of the output sodium hyaluronate gel does not match the target strength of the sodium hyaluronate gel, it can be adjusted in real time, thereby changing the strength of the output sodium hyaluronate gel.

The invention relates to a preparation method of a hyaluronic acid / bacterial cellulose composite hydrogel, which comprises taking out the bacterial cellulose membrane after bacterial fermentation, crushing the bacterial cellulose membrane, and homogenizing under high pressure to obtain the bacterial cellulose suspension , dissolving hyaluronic acid therein, adjusting the pH value to be acidic, and continuously stirring to obtain an acidic gel, then washing the gel until it is neutral, and drying it in vacuum to obtain a hyaluronic acid bacterial cellulose composite dry gel. The gel prepared by this method has a three-dimensional network structure, and the material has good light transmittance. It can be seen from Figure 2 that the dried gel retains the good light transmittance and high water content of the hyaluronic acid / bacterial cellulose composite hydrogel after rehydration , it can be seen from Figure 3 that its morphology is a typical gel feature, and the average pore size is tens of microns. It can be seen from Figure 4 that at a shear rate of 0.1-100Hz, this material behaves as an elastic body, which proves that it is here The scope has good elastic properties.