4results about How to "Improve release ability" patented technology

The invention relates to the field of fertilizers, in particular to a preparation method of a compound fertilizer with water and fertilizer retention and salt and alkali resistance functions, which comprises the following steps: step 1, preparing aminated starch; step 2, preparing N-acryloyl glycyl chloride; step 3, preparing a starch / acryloyl glycinamide compound; step 4, weighing the starch / acryloyl glycinamide compound, adding the compound into deionized water, then adding acrylic acid and acrylamide, and carrying out copolymerization to obtain coating layer feed liquid; and step 5, spraying the coating layer feed liquid on the surfaces of the fertilizer particle cores in a spraying manner to obtain the compound fertilizer. According to the compound fertilizer prepared by the invention, a coated compound fertilizer is prepared by taking a fertilizer particle inner core as an inner core and taking a material prepared from modified starch as a coating layer. The compound fertilizer prepared by the invention has relatively strong water and fertilizer retention and slow release properties, and can play a relatively strong salt and alkali resistance function.

The invention relates to the technical field of blood products, in particular to a modified plasma matrix and a preparation method and application thereof. According to the preparation method, the calcium phosphate modifier is combined with the plasma matrix, so that the mechanical strength of the plasma matrix can be effectively enhanced, and the degradation time of the plasma matrix can be prolonged; and meanwhile, the defect of weak osteogenic inductivity of a calcium phosphate biological material is overcome by utilizing good biocompatibility and strong growth factor release capability of the plasma matrix. In addition, the plasma matrix is concentrated by using a freeze-drying technology, so that a fibrin network in the plasma matrix is formed more compactly, the mechanical strength of a plasma matrix product is further improved, and the degradation time is prolonged; and a calcium phosphate modifier and plasma matrix mixture is prepared into a product which is easy to store and use by a freeze-drying technology, so that the product can meet wider clinical application scenes, and a better treatment effect is obtained.

This invention belongs to the field of cosmetic technology and provides a polymer nanomicelle, its preparation method, and its application. The polymer nanomicelle of this invention is prepared from an amphiphilic block copolymer and an active ingredient; the structure of the block copolymer is shown in the following formula; the number-average molecular weight of the PEG is 2000-4000; and the number-average molecular weight of the PCL is 1800-13000. This polymer nanomicelle encapsulates a high content of active ingredient, and its active physicochemical properties and sustained-release properties are significantly improved after encapsulation; when combined with the active ingredient, it exhibits better in vitro antioxidant activity and whitening activity, and is widely used in cosmetic active ingredient encapsulation technology.

The invention discloses a rocket wind correction rolling evaluation method suitable for a GTO long-window task, and the method comprises the steps: firstly carrying out the quasi-real-time wind correction trajectory design and evaluation for each decision point of a launching day, and then carrying out the release judgment. If the current release condition is met, the launch process can be directly entered; if the current release condition is not met, judging whether the transmission is allowed to be delayed for a certain time length t or not, and if the transmission is not allowed to be delayed, suggesting that the transmission is stopped; and if the delay time t emission is allowed, entering a delay time t emission process at the moment, and then entering a next decision point, and so on. According to the method, the existing quasi-real-time wind correction trajectory design technology can be better applied to such tasks, the adaptability of the rocket to complex weather conditions in the launching day can be improved to the greatest extent, and the release probability and the flight safety of the rocket are improved.