7results about How to "Guaranteed content" patented technology

The invention belongs to the technical field of fruit and vegetable juice processing, and provides a preparation technology of concentrated clear asparagus juice. According to the process, high retention rate and efficient clarification of functional components of asparagus are realized through the steps of gradient heat treatment, composite enzymolysis, two-stage centrifugal separation, enzyme deactivation-ultrafiltration coupling, low-temperature concentration and the like. Particularly, a complex enzyme preparation in a specific ratio is combined with a 50kDa ultrafiltration membrane, so that the membrane pollution index is reduced by 60% while the clarification effect is ensured. The rutin retention rate of the concentrated clear asparagus juice produced by the process reaches 82.7%, and the turbidity is 1t; the method has remarkable technical advantages and economic benefits.

This invention discloses a 6-series energy-absorbing aluminum alloy and its manufacturing method. The aluminum alloy, by mass percentage, comprises: Mg: 0.50–1.20%, Si: 0.40–1.00%, Mn: 0.15–0.95%, Cr: 0–0.25%, Fe: 0.15–0.45%, Ti: 0.015–0.30%, and Cu: 0.10–0.70%; wherein the Mg / Si mass ratio is ≥0.85 / 1, and the total content of Mn+Cr+Fe is ≤1.2%; it also includes an AlTi5C0.25 grain refiner and impurities with a content not exceeding 0.15%, with the balance being Al. This invention optimizes and precisely designs the content of the main alloying elements in the alloy, and introduces TiC nanoparticles using the AlTi5C0.25 grain refiner, enabling the aluminum alloy profile to possess both high strength and excellent crushability.

The application discloses a high-enthalpy flexible phase change material and a preparation method and application thereof, and relates to the technical field of high polymer composite materials.The preparation method comprises the following steps: taking maleic anhydride as a grafting agent, and polyolefin thermoplastic elastomer as a grafting object to prepare a grafting modified thermoplastic elastomer; adding a crosslinking agent and a phase change material into the grafting modified thermoplastic elastomer, and melt blending to obtain the high-enthalpy flexible phase change material.The preparation method has the following advantages: more excellent flexibility, the three-dimensional crosslinking network is constructed through the introduction of anhydride-ester dynamic bond, and the organic solid-liquid phase change material is reinforced and toughened; high energy storage density; the introduction of the crosslinking network enables the polymer support structure to better coat the phase change material, and the content of the phase change material is ensured, that is, the high energy storage density is provided.

The application relates to the technical field of heat-conducting composite materials, and discloses a heat-conducting flexible composite phase change material as well as a preparation method and application thereof. The method comprises the following steps: modifying a thermoplastic elastomer by grafting maleic anhydride as a grafting agent; modifying a heat-conducting filler by surface hydroxylation with a strong base as a surface modifier; melt blending the grafted thermoplastic elastomer with a phase change material, and adding the surface-modified heat-conducting filler to crosslink, so as to obtain the heat-conducting flexible composite phase change material. By regulating and controlling the micro-interface structure of the filler-matrix, the interface interaction between the filler and the matrix is enhanced, the heat-conducting-support integrated structure is constructed, the interaction between the filler and the matrix is improved, the dispersion of the filler in the matrix is improved, the interface phonon scattering is reduced, the heat-conducting flexible composite phase change material has good heat-conducting performance, and meanwhile, the heat-conducting flexible composite phase change material also has strong mechanical performance and high energy storage density.

The invention relates to lycopene water dispersible powder and a preparation method thereof, and belongs to the technical field of food additives. The method comprises the following steps: esterifying octadecyl alcohol and food-grade phosphoric acid, and reacting with edible gelatin to prepare modified edible gelatin; then lycopene dry powder is dispersed in ethyl acetate, a compound emulsifier, modified edible gelatin and 1, 3-propylene glycol are added, and preliminary embedding is achieved through high-speed shearing and ultrasonic nanocrystallization treatment; and step-by-step vacuum drying, secondary embedding with an excipient, freezing, crushing and screening are carried out, such that the water dispersible powder with a particle size of 0.1-0.2 mm is prepared. Through the hydrophobic binding and charge repulsion effects of the modified gelatin and the synergistic process of ultrasonic nanocrystallization and double embedding, the technical problems that traditional lycopene is poor in water dispersibility, prone to layering, high in solvent residue and insufficient in stability are solved. The prepared product is suitable for healthy food systems such as water-based food, beverage and the like, and has the advantages of convenience in storage and transportation and high bioavailability.

The application discloses a preparation method and application of aluminum ash-based long-term strength growth type high-aluminum cement. The method utilizes citric acid and tartaric acid to modify aluminum ash, consumes active aluminum, dissolves heavy metal ions, removes soluble salt and AlN, and realizes harmless treatment of the aluminum ash. Then, the pretreated aluminum ash is mixed with steel slag, lime powder and other materials in proportion, calcined at a high temperature of 1350-1450 DEG C for 1 hour, and then subjected to an extremely cold modification process to promote the metastable hydration product to transform into a stable state to generate water garnet and tobermorite gel. The activity of the solid waste is improved through a planetary ball mill mechanical activation. The high-aluminum cement with long-term strength growth characteristics is prepared. The application also provides application of the high-aluminum cement in jet reinforcement and provides a slurry of the high-aluminum cement for preparing jet-reinforced mine surrounding rock. The application not only solves the environmental problems of industrial solid wastes such as aluminum ash, but also realizes resource utilization of the solid wastes.

This utility model discloses an SCR denitrification flue equipped with nitrogen oxide and oxygen concentration detection devices. The flue includes an SCR denitrification flue where exhaust gas enters from the top inlet and flows along the flue to exit from the bottom outlet. A first denitrification spray gun system is located at the top of the flue, and a first nitrogen oxide and oxygen detection device is located at the bottom bend. A second denitrification spray gun system is located in the upward flow section of the flue, and a second nitrogen oxide and oxygen detection device is also located at the bottom outlet. As can be seen from the above structure, this SCR denitrification flue with nitrogen oxide and oxygen concentration detection devices allows the first and second denitrification spray gun systems to adjust the ammonia injection rate based on feedback from the first and second detection devices, ensuring that the nitrogen oxide content in the exhaust gas meets emission requirements and also enabling more precise ammonia usage.