423results about How to "Good gel" patented technology

The present invention is directed to a packaged, shelf-stable, gelled natural fruit pulp, in which the natural pectins of the fruit pulp have been substantially demethoxylated by the action of a pectinmethylesterase enzyme under ultra-high pressure (UHP) conditions. Also provided is a method of preparation of the packaged, ambient-stable, natural fruit product.

The invention discloses red mud particle soil repairing adhesives and a preparation method and application thereof. The red mud particle soil repairing adhesives are prepared through a series of steps of water adding, mixing, ball forming, room-temperature drying and solidifying by using red mud as the raw material, mixing gypsum into the red mud and using binding material Portland cement and powdered coal in a compound mode to achieve the synergistic interaction result and remarkably improve the red mud gelling property. Red mud powder is granulated and prepared at a room temperature, the obtained red mud particle soil repairing adhesives have certain mechanical strength and quite good heavy metal stabile solidifying performance, soil or mud polluted by heavy metal can be effectively treated, and meanwhile OH radical ions can be slowly released; the pH of soil is kept between 6.7 and 8.1 after soil is repaired through the repairing adhesives, the problems that when soil is repaired through red mud powder, the pH of soil rises too fast and plant growth is not facilitated can be effectively solved, and high application value and environment benefits are achieved.

The invention discloses a lead-zinc smelting slag based geopolymer gelling material and a preparation method thereof and belongs to the technical field of geopolymer. The material is composed of, by mass, 65-72 wt.% of lead-zinc smelting slag, 5-10 wt.% of coal ash, 8-15 wt.% of composite alkali activator, 3-6 wt.% of sulfate activator, 1-3 wt.% of aluminate activator and 10-14 wt.5 of deionized water. The preparation method includes: respectively drying and grinding lead-zinc smelting slag and coal ash, and mixing well with a sulfate activator and an aluminate activator before joint grinding to obtain a ball-milled mixture; adding a composite alkali activator solution into the ball-milled mixture, stirring well, forming, and maintaining to obtain the material. The preparation method is simple, low in energy consumption and free of pollution in the preparation process, and geopolymer has good gelling performance, mechanical performance, corrosion resistance, wear resistance and dry shrinkage resistance.

The invention discloses a red mud granular material and an application thereof. A red mud particle soil repairing agent takes red mud powder, gypsum, cement and fly ash as main materials, phosphate is doped as an activation material, thereby, gelling capability of red the mud powder and capability for fixing heavy metal ions in a stable mode can be increased, a series of processes of mixing by adding water, balling, and drying solidification at normal temperature can be carried out, so that the spherical particle soil repairing agent can be obtained by composite moulding of the red mud raw ore powder material. The method realizes preparation of the red mud powder with granulation at normal temperature, the obtained red mud particle soil repairing agent has certain mechanical strength and good heavy metal stable solidification performance, the heavy metal-polluted soil or sludge can be effectively processed, OH radical ions can be slowly released simultaneously, a pH value of the soil after restoration by the repairing agent is basically stabilized below 7.5, problems of fast increase of the pH value of the soil and poor growth condition for plants during a soil restoration process by the red mud powder can be effectively overcome, and the method has high application value and environment benefit.

The invention provides a fabric post-finishing agent based on a modified silk fibroin solution and a preparation method of the fabric post-finishing agent. The preparation method comprises the following specific operational steps: (1) removing impurities from waste silk, putting the impurity-free waste silk in a sodium bicarbonate solution for boiling and degumming, taking out and wringing out the degummed waste silk, washing with clean water till the greasy feel is eliminated, putting the primarily treated waste silk in the sodium bicarbonate solution again for boiling and degumming, taking out and wringing out the degummed waste silk again, washing again with clean water till the greasy feel is eliminated, putting the secondarily treated waste silk in an oven for drying, so as to obtain degummed silk; (2) putting the degummed silk in a lithium bromide solution for standing and dissolution, taking out the treated silk, and performing cooling, dialysis and concentration to obtain a silk fibroin solution; and (3) adding glycerin and gelatin into the silk fibroin solution, uniformly stirring to form a membrane solution, adjusting the pH value of the membrane solution and then adding glutaraldehyde and chitosan, uniformly stirring, and finally mixing the treated membrane solution with a solvent containing additives, so as to obtain the fabric post-finishing agent. The fabric post-finishing agent obtained according to the preparation method covers the fabric surface in the form of a composite membrane; and the preparation method is beneficial to improvements in the membrane forming property, the ductility and the like of a silk fibroin finishing agent.

The invention discloses a preparation method of a gangue base mine cemented filling material, and belongs to the field of mine filling materials. Cementing activity hidden in gangue is stimulated in a compound stimulation way, cement is partially replaced with the cementing activity to serve as a cementing material for cemented filling mining, and then the material is mixed with fine particle size gangue to be prepared into the mine cemented filling material. The process for preparing the mine cemented filling material is simple, large proportion dosage of gangue powder and cement is realized, the filling material has excellent mechanical property and stable conveying property, no segregation or no bleeding exists, the application of gangue in mine filling is broadened, the mine filling cost is reduced, the material conveying property is improved, at the same time, the purpose of effective use of gangue is realized, and mine filling is promoted to develop forward.

The invention discloses a premix auxiliary and a preparation method thereof. The premix auxiliary comprises the following components in parts by weight: 10-20 parts of hydroxypropyl starch, 5-10 parts of starch, 0.5-2 parts of arabic gum, 0.5-5 parts of carrageenan, 0.5-2 parts of guar gum, 0.5-5 parts of xanthan gum and 0-5 parts of colorant. After a proper amount of water or glycerinum is added into the premix auxiliary to form a solution, and the viscosity is regulated to a proper range by production equipment according to practice to prepare capsules, so that the production procedures are greatly reduced, the requirement on process parameters is simple, the production time is greatly shortened, and the product quality is stable. Furthermore, the premix auxiliary disclosed by the invention does not contain a gelatin component, and the prepared capsule is a plant capsule with higher safety and better stability and is suitable for wide applicable crowd.

The invention relates to a novel preparation method for agranular crosslinking sodium hyaluronate. Crosslinking reaction is performed in the low-concentration linear molecule state, and accordingly excess exposure of enzymatic-hydrolysis sites caused by crushing or extrusion of mechanical external forces of crosslinking sodium hyaluronate in traditional processes can be avoided. Redundant crosslinker can be eliminated effectively by white-powdered crosslinking sodium hyaluronate particles obtained by physical precipitation by using organic solvent, and accordingly accurate distribution of different concentrations of products can be guaranteed. The crosslinking sodium hyaluronate has the characteristics of high-temperature resistance, enzymatic-hydrolysis resistance and agranulation, and excellent injectability can be improved evidently. Kinetic viscosity of the agranular crosslinking sodium hyaluronate is reduced by 3-10% after sterilizing at 121 DEG C for 30 minutes, enzymatic hydrolysis is performed to 1000 U of sodium hyaluronate for 48 hours, and releasing amount of uronic acid is smaller than 40%.

The invention discloses flame-retardant cable filler and a preparation method of the flame-retardant cable filler. The flame-retardant cable filler is prepared by the following main raw materials according to a certain mixing proportion: polyvinyl chloride resin, polyvinyl resin, EVA (ethylene), polyamide resin, silane coupling agents, roasted zeolite powders, diatomite, titanate, zinc stearate, attapulgite, straw ashes, carbon black, azodicarbonamide, an age resister 1010 and a fire retardant. The fame-retardant cable filler has a stable chemical structure, can not be decomposed by microorganism easily, is good in gel property and high in swelling capability, and the electrical property of the cable is improved, the service life of the cable is prolonged, and the resources are saved.