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135results about How to "Excellent self-healing function" patented technology

Water-soluble plant growth nutrient solution and preparation method

The invention relates to a water-soluble plant growth nutrient solution and a preparation method. In the plant growth nutrient solution, the content of small molecular weight water-soluble chitosan accounts for 8-120g/L, the sum of the content of nitrogen, phosphorus and potassium is larger than or equal to 60g/L, the sum of the content of medium trace elements accounts for 3-30g/L, the content of organic matter accounts for 30-200g/L, the content of plant growth regulator accounts for 0.01-5g/L, and the content of spread penetrating agents is larger than or equal to 0.2g/L; the small molecular weight water-soluble chitosan is obtained through the preparation steps that chitosan is firstly subjected to alkalization of strong base, then subjected to carboxyl chemical modification, degraded through strong oxidant after carboxyl chemical modification and finally neutralized through acid. The water-soluble plant growth nutrient solution integrates the effects of nutritional complement, growth promotion, antibiosis, virus resistance, stress tolerance and the like and has multiple functions and effects of improving soil, preventing hardening, increasing ground temperature, resisting to disease, being tolerant to stress, resisting to continuous cropping, supplementing nutrition rapidly, raising the yield and improving fruit quality and the like.
Owner:诺贝丰(陕西)农业有限公司

Room temperature intrinsic self-repairing elastomer material with super ductility and preparation method of room temperature intrinsic self-repairing elastomer material

The invention discloses a room temperature intrinsic self-repairing material with super ductility and a preparation method of the room temperature intrinsic self-repairing elastomer material, and belongs to the field of polymer materials. The material is prepared from 1-(3-aminopropyl)imidazole, toluene diisocyanate-terminated polypropylene glycol and triamino-terminated polypropylene glycol by mixing for polycondensation at certain temperature and adding zinc ion salt for crosslinking. The preparation method of the material comprises the following steps: dissolving 1-(3-aminopropyl)imidazole,toluene diisocyanate-terminated polypropylene glycol and triamino-terminated polypropylene glycol in chloroform, then adding a certain amount of zinc ion salt to the solution, performing drying at room temperature for a period of time, and continuing drying at 60 DEG C to obtain the room temperature intrinsic self-repairing material with super ductility. The material can not only realize the repair process at room temperature, but also be stretched to 90 times of the original length. More importantly, compared with the prior art, the preparation process is simple, preparation efficiency is high, and the material is suitable for industrial mass production.
Owner:NANJING UNIV OF SCI & TECH

Preparation method of waterborne flame-retardant self-repairing polyurethane based on modified graphene

The invention discloses a preparation method of waterborne flame-retardant self-repairing polyurethane based on modified graphene. The method comprises the following steps: firstly, ultrasonically crushing amino cyclotriphosphazene and isocyanate silane covalently modified graphene oxide, then reacting with macromolecular diol, a hydrophilic chain extender and diisocyanate, terminating with diselenide diol, neutralizing, emulsifying, and adding waterborne self-repairing polyurethane containing diselenide bonds so as to obtain the waterborne flame-retardant self-repairing polyurethane emulsion. According to the invention, by reducing the size of graphene oxide and modifying a waterborne polyurethane chain, the water dispersion stability and the dispersion uniformity and compatibility of the graphene oxide in the membrane are improved, so that the mechanical strength of the membrane is improved; due to nitrogen phosphorus silicon modification, the flame retardant property is further improved; the material is endowed with a good room-temperature illumination self-repairing function through double selenium bonds; and the method provided by the invention is environment-friendly, and the prepared material has high mechanical property and excellent flame-retardant self-repairing function, and can be applied to various fields of leather finishing, fabric finishing and the like.
Owner:SICHUAN UNIV

Preparation method and application of medical magnesium-based metal coating with stress-corrosion-resisting and self-repairing functions

ActiveCN109675120AInhibition of stress corrosion tendencyGood biocompatibilitySurgeryCoatingsCorrosion resistantBiocompatibility Testing
The invention discloses a preparation method and application of a medical magnesium-based metal coating with stress-corrosion-resisting and self-repairing functions. The method comprises the followingsteps: taking medical magnesium-based metal as a matrix; firstly, pre-treating to remove machining residues and surface attached matters; then putting into a sodium hydroxide solution and carrying out hydroxylation treatment; then coating the surface of the matrix with a corrosion inhibitor; and carrying out heat treatment and curing to form the coating with the stress-corrosion-resisting and self-repairing functions, wherein the corrosion inhibitor is prepared from three components including a silane coupling agent, phytic acid and graphene oxide. A preparation technology of the coating involved in the invention is simple in method and easy to operate; the obtained coating has good bonding strength and good biocompatibility and has a self-repairing capability in a physiological environment; the corrosion-resisting performance of a magnesium alloy can be improved and the stress corrosion sensitivity can be inhibited; and therefore, the prepared magnesium-based metal with the protection coating as a medical implantable device material can be applied in the clinical aspect.
Owner:JINAN UNIVERSITY

Autonomous intelligent radio frequency control network

The invention discloses an autonomous intelligent RF control network system, which comprises nodes and a host computer. Each node comprises a receiving-transmitting control part, a singlechip circuit part and an upper-computer processing software part; the receiving-transmitting control part comprises a routing list setting module and a receiving-transmitting RF communication module; the singlechip circuit part comprises a system state indicating module, a memory chip, a singlechip control module and a power supply module; and the upper-computer processing software part comprises a device address list analysis module, the receiving-transmitting RF communication module, the singlechip control module and an information processing module. The whole system control adopts the singlechip technology, has a carrier wave monitoring output CD, and can avoid the space wireless communication collision; an address matching output AR is provided, so that the point-to-multipoint wireless communication design can be realized easily; and a data receiving ready DR is provided, thereby facilitating the energy-saving design and satisfying low power consumption designing requirement. Integral communication protocol and CRC efficacy are installed internally, so that all wireless transceiving transmission can be completed. Compared with the prior art, the autonomous intelligent RF control network system has the characteristics of strong anti-interference performance, no false action, low power consumption and farther intelligent routing and communication distance, and is unacted on barriers because an RF signal system controlled by a singlechip is adopted. The system is applied to dangerous industrial control sites such as a mine and the like, is widely used in the fields such as automatic building control, intelligent vehicle traffic and the like, and has higher economic benefits and social benefits.
Owner:金展

Passive optical fiber starring network with self-healing function

The invention discloses a passive optical fiber starring network with a self-healing function. The passive optical fiber starring network comprises a starring network serving as the upper layer network and an annular network serving as the lower network, and further comprises a central node provided with a light source. An incident light signal sent by the light source is divided into N paths of optical signals through a 2*N coupler arranged on the central node, the N paths of optical signals are sent to N 1*2 couplers connected with the 2*N coupler, and therefore the starring network is formed. All branches of all the 1*2 couplers are connected in an adjacent mode and provided with FBG sensors, and therefore the annular network is formed. In each FBG sensor of the annular network, when an optical fiber of one branch is broken, the upstream optical signals on the other branches can still be transmitted to the FBG sensor, sensing signal emission exists all the time, all the FBG sensors on the annular network are kept in the normal working state, and therefore the self-healing function is achieved. According to the passive optical fiber starring network, self-healing of the sensor network can be achieved in the severe electromagnetic interference environment, and the passive optical fiber starring network has wide social benefits and economic benefits.
Owner:TIANJIN UNIV

Ecological spur dike for improving aquatic organism habitats of medium and small rivers

ActiveCN110284461AReduce the level of nutrients such as nitrogen and phosphorusReduce organic contentBreakwatersQuaysWater qualityOrganic content
The invention relates to an ecological spur dike for improving aquatic organism habitats of medium and small rivers. Functions of improving the water environmental quality, building the organism habitats and restoring an ecological system can be effectively achieved. According to the technical scheme, an upper layer dike body, a medium layer dike body and a lower layer dike body are built by gabion boxes, and the periphery of the lower layer dike body is reinforced by wooden piles. Botany cultivating grooves are formed in the upper surfaces of the three layers of dike bodies, an ecological blanket is arranged in the botany cultivating groove of the upper layer dike body, emergent aquatic plants are planted on the ecological blanket, submerged plants B suitable for a shallow water environment are planted in the botany cultivating groove of the medium layer dike body, and submerged plants A suitable for a deepwater environment are planted in the botany cultivating groove of the lower layer dike body. According to the ecological spur dike for improving the aquatic organism habitats of the medium and small rivers, nitrogen and phosphorus nutritive salt level in a water body can be obviously reduced, organic content in the water is reduced, so that the water quality purifying effect is improved, the water body landscape is improved, the water body ecological restoration capacity is greatly improved, and innovation the ecological spur dike is achieved.
Owner:ZHENGZHOU UNIV

Metallic matrix surface composite coating and preparation method thereof

The invention discloses a metallic matrix surface composite coating and a preparation method thereof. The composite coating comprises a TiC layer, a mixed layer and an Al2O3 layer, wherein the TiC layer is combined with the matrix surface, and the mixed layer and the Al2O3 layer are successively arranged on the TiC layer; the thickness of each layer is 20-50 mu m, and the total thickness of the coating is less than or equal to 150 mu m; the mixed layer is composed of Al2O3 and TiC, TiC accounts for 20-50 wt%, and the matrix is metal material of which the chromium hardness is less than 40. Nanometer TiC, Al2O3 and the mixed powder of nanometer TiC and Al2O3 are respectively sprayed and pelleted to respectively screen powder of which the particle diameter is less than 120 mu m; TiC powder is utilized to spray one layer of TiC on the matrix surface; then, mixed powder is utilized to spray the mixed layer on the TiC layer; Al2O3 powder is utilized to spray the Al2O3 layer on the mixed layer; finally, the sprayed sample is put into an oxidation electric furnace and is heated and processed for more than one hour at above 500 DEG C; and air is continuously introduced in the heating and processing process. The composite coating provided by the invention has good heat insulation and penetration prevention performance, has favorable self-healing function and shows excellent compactness after repeated thermal shock.
Owner:HUAZHONG UNIV OF SCI & TECH

Supermolecule material and self repairing hydrogel

The invention belongs to the technical field of supermolecule chemistry, and especially relates to a supermolecule material, which comprises a first construction unit, a second construction unit, anda third construction unit. The first construction unit comprises a structure represented by a formula one. The second construction unit comprises a structure represented by a formula two. The third construction unit comprises a structure represented by a formula three/four. The first construction unit, the second construction unit, and the third construction unit carry out self assembly to form the supermolecule material based on host-guest (adamantane-cyclodextrin). The invention also provides a hydrogel, which is prepared by mixing the first construction unit, the second construction unit, the third construction unit and water. The (adamantane-cyclodextrin) hosts-guests of the first construction unit, the second construction unit, and the third construction unit are dissolved and mixed to carry out self assembly, and finally the mixture is heated to a temperature of 35 to 50 DEG C to form the hydrogel. The problem that the structure of conventional hydrogel is disordered and nonadjustable is solved, and macroscopic large cracks can be self-repaired without artificial pasting.
Owner:佛山国防科技工业技术成果产业化应用推广中心
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