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21results about How to "Does not affect mechanical properties" patented technology
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Supercritical thermoplastic elastomer foamed sheet and preparation method thereof
The invention relates to the technical field of high polymer material processing, in particular to a supercritical thermoplastic elastomer foaming sheet and a preparation method thereof, and is characterized in that the supercritical thermoplastic elastomer foaming sheet is prepared from the following raw materials in parts by weight: 90-100 parts of thermoplastic polyurethane (TPU) and / or thermoplastic polyester elastomer (TPEE) and / or block polyether amide elastomer (PEBAX), 0.1-1 part of chain extender, 0.1-3 parts of nucleating agent and 0.1-0.5 part of antioxidant, 0.1 to 3.5 parts of an antistatic agent; by optimizing the material formula and the cooling and mold opening technology, the technical problems existing in the production process of the thermoplastic elastomer foamed sheet in the prior art are solved, and a high-performance and multifunctional novel material solution is provided for multiple fields of automobiles, sports equipment, medical equipment and the like.
Owner:DONGGUAN HAIBOSI NEW MATERIAL TECH CO LTD
Straw-based biodegradable composite material as well as preparation method and application thereof
InactiveCN119119700AImprove mechanical propertiesImprove antibacterial propertiesPlatesPolymer scienceGlycerol
The invention belongs to the technical field of biodegradable food packaging materials, and particularly relates to a straw-based biodegradable composite material as well as a preparation method and application thereof. The straw-based biodegradable composite material is prepared from the following components in parts by weight: 10 to 20 parts of straw fiber, 65 to 80 parts of modified polylactic acid, 2 to 5 parts of bacteriostatic agent, 0.5 to 1.5 parts of glycerol and 1 to 3 parts of sodium alginate. The bacteriostatic agent is prepared through a series of chemical reactions and has a novel structure. The straw-based biodegradable composite material prepared by the invention is green and environment-friendly tableware which has excellent antibacterial activity, high mechanical strength and good water resistance and is biodegradable.
Owner:WENZHOU XINBANG ENVIRONMENTAL PROTECTION TECH CO LTD
Machining method for high-precision metal circuit on surface of composite material
PendingCN119110500ALaser-activatable propertiesPlatingInsulating substrate metal adhesion improvementPrinted circuit secondary treatmentMetal coatingLaser processing
The invention relates to the technical field of circuit manufacturing, in particular to a method for processing a high-precision metal circuit on the surface of a composite material, which comprises the following steps of: paving an adhesive film with a light-induced activation effect on the surface of a composite material workpiece; carrying out curing treatment on the composite material workpiece on which the adhesive film paving is completed; carrying out laser induced activation on the surface of the cured composite material workpiece by adopting laser processing; and carrying out surface metal coating on the laser-induced and activated composite material workpiece to prepare the high-precision metal circuit on the surface of the composite material. The processing method of the high-precision metal circuit on the surface of the composite material aims to solve the problem that the conductivity and precision of the metal circuit processed on the surface of the composite material through laser direct writing are low.
Owner:AVIC BEIJING AERONAUTICAL MFG TECH RES INST
A non-magnetic tungsten-nickel-iron alloy and its preparation method and application
The present invention provides a non-magnetic tungsten-nickel-iron alloy and a preparation method and application thereof, belonging to the technical field of powder metallurgy. The present invention mixes tungsten powder, nickel powder, iron powder, cobalt powder and manganese powder, and then performs pressing and molding, and finally sequentially performs sintering and vacuum heat treatment to obtain a non-magnetic tungsten-nickel-iron alloy. The present invention controls the Ni / Fe value in the tungsten-nickel-iron alloy to obtain a non-magnetic tungsten-nickel-iron alloy without affecting the overall performance of the alloy, and then obtains a non-magnetic tungsten-nickel-iron alloy with excellent mechanical properties through pressing and molding, sintering and vacuum heat treatment. The results of the embodiment show that the tungsten-nickel-iron alloy prepared by the present invention is non-magnetic, and has a tensile strength of ≥900MPa, a yield strength of ≥670MPa, an elongation of ≥15%, and an impact toughness of ≥100J / cm 2 .
Owner:XIAN HUASHAN METAL PROD CO LTD
A bridge pot bearing and control system based on system transformation
ActiveCN116122137Bclose contactrich design methodClimate change adaptationBridge structural detailsFixed bearingControl system
This invention discloses a bridge pot bearing and control system based on system conversion. A first bearing body and a second bearing body are stacked from top to bottom. The first bearing body has a first mounting plate, and an adjustment component is installed below the first mounting plate. The second bearing body has a second mounting plate, and a test component is installed on the second mounting plate. The test component connects with the adjustment component. While performing pressure testing, the test component, in conjunction with the adjustment component, enables the conversion between three states: fixed pot bearing, unidirectional movable pot bearing, and bidirectional movable pot bearing. This invention monitors the stress on the bearing in real time, calculates the bridge shear force based on the reaction force, and derives the bridge shear force amplification factor under dynamic loads, thus improving bridge design methods and making bridge design safer and more reliable. It can realize the functions of a fixed bearing, a unidirectional movable bearing, or a bidirectional movable bearing, and achieve mutual conversion between bearing types.
Owner:CHANGAN UNIV
A plating process for forming a titanium coating on PEEK material
This invention relates to a coating process for forming a titanium coating on PEEK material, comprising: S1, modifying the PEEK material by electron beam enhanced plasma cleaning, and bombarding the PEEK material surface with argon ions; S2, bombarding the PEEK material surface treated in S1 with metal ions, wherein charged metal ions generated by an ionization source are accelerated and bombarded on the PEEK material surface by a high negative bias voltage; S3, depositing a titanium coating on the PEEK material surface treated in S2, using titanium as the target material. This process can obtain a metal film layer with strong adhesion, dense coating, and biocompatibility on medical PEEK material. The deposited coating can maintain the low elastic modulus matching characteristics of the PEEK material surface and the porous structure of 3D printed PEEK. The deposition temperature is controlled below 100℃, which does not affect the mechanical properties of the material.
Owner:DABO MEDICAL TECH CO LTD
Pentaerythritol phosphate dihydric alcohol as well as preparation method and application thereof
PendingCN119490530AreactiveDoes not affect mechanical propertiesGroup 5/15 element organic compoundsPhosphorous acidPolyester
The invention discloses phosphorous acid pentaerythritol ester dihydric alcohol as well as a preparation method and application thereof. The phosphorous acid pentaerythritol ester diol has a structure as shown in a formula (I): # imgabs0 #, in the formula (I), R1 is a C2-C18 straight chain alkyl group, a branched chain alkyl group, a cyclic alkyl group or an aryl group, or HO-R1-OH is polyether diol or polyester diol with the molecular weight of 200-1000g / mol. The flame retardant is introduced into polyurethane resin as a modifier, so that the resin material is endowed with excellent light aging resistance, hydrolysis resistance and flame retardance. In addition, the preparation process is simple, the equipment investment is low, the solid catalyst can be repeatedly used, and the production cost and the environmental burden are greatly reduced.
Owner:南京聚发新材料有限公司
Honeycomb processing method for automatic fiber placement
The invention discloses a honeycomb processing method for automatic fiber placement. The method comprises the following steps: S1, paving a circle of first structural adhesive film (4) on the edge of the outer surface of a honeycomb (3); s2, paving a circle of expansion adhesive film (2) on the whole corner cutting area of the honeycomb (3); s3, paving a second structural adhesive film (1) on the whole inner surface of the honeycomb (3); and S4, carrying out vacuum preforming on the honeycomb (3) paved with the adhesive film. The method has the advantages of being simple, high in universality and convenient to implement. The method has the advantages of being simple, high in universality and convenient to implement.
Owner:HARBIN
Carbon material flow battery electrode material and preparation method and application thereof
PendingCN119108570ADoes not affect mechanical propertiesImprove surface activityCell electrodesRegenerative fuel cellsElectrolytic agentElectrical battery
The invention provides a carbon material flow battery electrode material as well as a preparation method and application thereof, and relates to the technical field of battery electrodes. A carbon material is used as a basic raw material, and laser surface dot matrix modification is performed on the carbon material after pretreatment processes such as ultrasonic cleaning, acid treatment, drying, roasting and the like, so that the flow battery electrode material is obtained. According to the preparation method disclosed by the invention, on the premise of ensuring good mechanical properties of the carbon material, the electrode activity, the single battery performance and the hydrophilic infiltration performance of the carbon material are remarkably improved, the reaction active sites of the carbon material are increased, and the accessibility and the reaction activity of an electrolyte are improved, so that the comprehensive performance of a flow battery prepared by taking the carbon material as the electrode material is improved.
Owner:SHENZHEN GENERAL HYDROGEN ENERGY TECH CORP LTD
A long-acting antibacterial hydrogel containing polyguanidine polymer and preparation method thereof
ActiveCN118812877Bsuitable humiditypromote repairAerosol deliveryOintment deliveryPolymer sciencePerylene derivatives
The present invention discloses a long-acting antibacterial hydrogel containing a polyguanidine polymer and a preparation method, and belongs to the field of hydrogels. The present invention first performs aldehyde modification on hyaluronic acid (HA) to obtain aldehyded hyaluronic acid (OHA); then the aldehyded hyaluronic acid (OHA) and the amino group of a chitosan derivative / polyguanidine polymer undergo a Schiff base chemical cross-linking reaction to obtain a long-acting antibacterial hydrogel. The long-acting antibacterial hydrogel prepared by the present invention has good controllability and durability of release, does not affect its mechanical properties, and has a wide range of applications.
Owner:HONGZHI BIOTECHNOLOGY (ZHEJIANG) CO LTD
Preparation method of anti-yellowing butadiene rubber
PendingCN119552287AIncreased durabilityDoes not affect mechanical propertiesRubber materialPolymer science
The invention discloses a preparation method of anti-yellowing butadiene rubber. The anti-yellowing butadiene rubber is prepared from the following raw materials in parts by weight: 100 parts of butadiene of which the mass fraction is greater than or equal to 99.0%, 100 parts of normal hexane, 5-20 parts of a reaction catalyst, 3-10 parts of an antioxidant, 10-20 parts of an anti-sticking agent and 5-15 parts of an anti-yellowing aid. Butadiene is used as a main raw material, butadiene rubber is prepared through a multi-kettle coordination anionic solution polymerization process, an antioxidant is added for polymerization to obtain a butadiene rubber solution, the butadiene rubber solution is coagulated to obtain a butadiene rubber solution, and an anti-sticking agent and an anti-yellowing auxiliary agent are added for a coagulation reaction. And dehydrating, drying and extruding the water-carrying colloidal particles to obtain the yellowing-resistant butadiene rubber finished product. The preparation method disclosed by the invention is simple to operate and has good economical efficiency. According to the prepared butadiene rubber, the yellow index of the material is reduced from 21.0 to 10.0 or below, and the oxidation induction time is prolonged from 7.9 min to 20.0 min or above.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1
A lignin flame retardant and its preparation method and flame retardant composite material
The present invention belongs to the technical field of flame retardant materials, and relates to a lignin flame retardant, a preparation method thereof, and a flame retardant composite material. The present invention discloses a method for preparing a lignin flame retardant, and the preparation method comprises: S1, dissolving lignin, urea, and a phosphorus source in water to prepare a mixed solution, heating and stirring the solution, drying, and performing secondary heating and curing, and grafting a phosphoric acid group on the surface of the lignin to obtain phosphorylated lignin; S2, mixing the phosphorylated lignin, the phosphorus source, and the nitrogen source in S1, heating and stirring the solution, and performing secondary heating and curing to obtain a lignin flame retardant containing an ammonium polyphosphate structure; the lignin flame retardant includes an ammonium polyphosphate structure, and the amount of phosphoric acid group grafted is 45-55wt%. The present invention also discloses a flame retardant composite material, which contains 1-8wt% of a lignin flame retardant.
Owner:NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
Gradient-structure hard alloy ball tooth suitable for dry rock breaking and preparation method
PendingCN122007423AImprove mechanical propertiesImprove toughnessAdditive manufacturing apparatusConstructionsHard metalAlloy
The invention provides a hard alloy ball tooth of a gradient structure suitable for dry rock breaking and a preparation method, the hard alloy ball tooth is of an N-layer gradient structure, and raw materials of the gradient structure comprise WC powder, Co powder and graphene powder; in the N-layer gradient structure, the volume fraction of the WC powder and the volume fraction of the graphene powder are equal or increased layer by layer from the inner layer to the outer layer, and the volume fraction of the Co powder is equal or decreased layer by layer from the inner layer to the outer layer; in the outermost layer of the N-layer gradient structure, the volume fraction of the WC powder and the volume fraction of the graphene powder are both larger than the volume fraction of the Co powder; and the thickness of each layer in the N layers of gradient structures is greater than or equal to 0.1 mm. According to the hard alloy ball tooth, the mechanical property of the hard alloy ball tooth is improved, the hard alloy ball tooth has high hardness and high toughness, the hard alloy ball tooth is endowed with more excellent heat dissipation performance, the rock breaking efficiency is improved to a great extent, and the service life of a product is prolonged to a great extent.
Owner:XIAN RES INST OF CHINA COAL TECH & ENG GRP CORP
Propylene / alpha-olefin copolymer as well as preparation method and application thereof
PendingCN121758661ADoes not affect mechanical propertiesLow sealing temperaturePolymer sciencePolyolefin
The invention discloses a propylene / alpha-olefin copolymer as well as a preparation method and application thereof. The weight-average molecular weight of the propylene / alpha-olefin copolymer is 100,000 to 300,000, and the melting temperature Tm of the propylene / alpha-olefin copolymer is 80 to 120 DEG C; the propylene / alpha-olefin copolymer is subjected to a rheological test by using a parallel plate rheometer in an oscillation shear mode, and an obtained fitting formula is as follows: Lg (eta *) = k * Lg omega + b. When the propylene / alpha-olefin copolymer material provided by the invention is used for a polyolefin cast film, the sealing temperature can be effectively reduced, the heat sealability is enhanced, and meanwhile, the mechanical properties of the material are not influenced.
Owner:WANHUA CHEM GRP CO LTD
Polyurethane foam plastic and preparation method and application thereof
ActiveCN116444976BDoes not affect mechanical propertiesImprove flame retardant performanceFire proofingPolymer scienceCarbamate
The present invention belongs to the technical field of polymer organic materials, and specifically relates to a polyurethane foam plastic and its preparation method and application. The present invention provides a polyurethane foam plastic, comprising the following raw materials in parts by weight: 100 parts of polyurethane; 5-15 parts of composite flame retardant; 10-25 parts of foaming agent; 2-5 parts of lubricant; 0.1-1 parts of curing agent; 1-5 parts of binder; 0.5-1 parts of nanofiller; the composite flame retardant is phosphorus pentoxide, propylene oxide, cyclic oligomeric phosphazene and nitrogen-containing polyether. The present invention greatly improves the flame retardant properties of the foam plastic by adding a composite flame retardant without affecting the mechanical properties of the polyurethane foam plastic. In addition, the inventors found that phosphorus pentoxide, propylene oxide, cyclic oligomeric phosphazene and nitrogen-containing polyether have a synergistic effect in improving the flame retardant properties of the foam plastic.
Owner:BMP ASIA IND (SHENZHEN) CO LTD
Photovoltaic glass clarifying agent and application
PendingCN119100584AHigh light transmittanceDoes not affect mechanical propertiesGlass rolling apparatusFERRIC IRONClarifying agent
The invention relates to a photovoltaic glass clarifying agent and application, and belongs to the technical field of preparation of photovoltaic glass. The invention relates to a photovoltaic glass clarifying agent, which is composed of As2O3, Sb2O3 and SnO2, and the mass ratio of As2O3 to Sb2O3 to SnO2 is (0.2-0.5): (0.4-0.8): 1. According to the photovoltaic glass clarifying agent provided by the invention, through the synergistic effect of As2O3, Sb2O3 and SnO2, the photovoltaic glass clarifying agent has excellent clarifying and oxidizing capacities, and ferrous iron can be effectively converted into ferric iron, so that the influence of impurity iron on the transmittance of photovoltaic glass is reduced.
Owner:TUNGHSU TECH GRP CO LTD
Artificial blood vessel for gradient modification of endothelialization-promoting active factors and preparation method and application of artificial blood vessel
PendingCN119139545AHigh concentration of active factorrapid endothelializationTissue regenerationProsthesisThrombusCell migration
The invention relates to the technical field of biomedical materials, in particular to an artificial blood vessel for gradient modification of endothelialization promoting active factors and a preparation method and application of the artificial blood vessel. The artificial blood vessel subjected to electrostatic spinning is subjected to ammonolysis and uniform heparin coupling, then the artificial blood vessel is subjected to gradient modification in the mode that the artificial blood vessel rotates at a constant speed in the horizontal state and an active factor solution is infused in the middle, and then the artificial blood vessel with the middle active factor being high in concentration and the two ends being low in concentration is obtained. Near endothelial cells can be guided to migrate from two ends to the middle, so that rapid endothelialization of the artificial blood vessel is realized. The invention discloses an artificial blood vessel for gradient modification of endothelialization promoting active factors, inhibition of acute thrombus, promotion of endothelial cell migration and rapid endothelialization so as to improve the patency rate, the endothelialization rate and the regeneration capacity of the artificial blood vessel.
Owner:LINGBO BIOTECHNOLOGY (HANGZHOU) CO LTD
Bottom die supporting structure between structural sections
ActiveCN224092389Upromote rapid formationSimple structural designBreakwatersClimate change adaptationClassical mechanicsStringer
Owner:THE SECOND ENG COMPANY OF CCCC FOURTH HARBOR ENG
A conductive composite material prepared using a high shear field polymer incompatible system, its preparation method, and its applications.
ActiveCN117209890BImprove conductivityImprove utilization efficiencyMicro devicesElectronic communication
The application provides a conductive composite material prepared by using a high shear field polymer incompatible system and a preparation method and application thereof, and belongs to the field of advanced material technology.The polymer-based conductive composite material is prepared by micro-injection molding processing and is prepared from a conductive filler and an incompatible resin system.The composite material can realize a substantial improvement in the conductive performance by adding a small amount of the conductive filler, can be used as an electronic material, and will not affect the mechanical performance and processing performance of the composite material.Meanwhile, the micro-injection molding processing technology can obtain a conductive functional micro device with higher precision and smaller size, and meets more use requirements.The polymer-based conductive composite material can be widely used in the fields of micro devices, micro-electro-mechanical systems, electronic communication, automobiles, aerospace, etc., and has a wide application prospect.
Owner:SICHUAN UNIV
Antistatic polyethylene open master batch and preparation method thereof
The invention relates to the technical field of material processing, in particular to an antistatic polyethylene open master batch and a preparation method thereof. The antistatic polyethylene opening master batch comprises the following components in parts by weight: 40-60 parts of polyethylene matrix resin, 4.8-6.5 parts of a plant oil-based amide opening agent, 15-25 parts of a functional antistatic agent and 0.5-1.5 parts of other auxiliaries. The preparation method of the functional antistatic agent comprises the following steps: premixing the ethylene-1-octylene copolymer, the itaconic acid and the initiator, extruding through a double-screw extruder to obtain POE-g-ITA, premixing the POE-g-ITA and the polyethylene glycol monostearate again, and extruding through the double-screw extruder to obtain the functional antistatic agent. The prepared antistatic polyethylene opening master batch is used for preparing a polyethylene film, and has stable and good opening property and antistatic property under the condition of ensuring the mechanical property and good appearance.
Owner:JIANGXI SHUNLI NEW MATERIAL CO LTD
A tooling for changing shaft pins
This utility model relates to a tooling for replacing axle pins, including a tooling base, a traveling mechanism, a lifting mechanism, a telescopic mechanism, a counterweight mechanism, a jack support, and a clamp. The lifting mechanism drives the furniture to rise and fall, the telescopic mechanism drives the furniture to move left and right, the jack support can adjust the angle of the jack, and the counterweight mechanism consists of a counterweight box welded to the tail of the telescopic mechanism. A counterweight block smaller than the size of the counterweight box is placed inside the counterweight box. This technical solution is used to replace the current method of using gas cutting to remove axle pins and using a sledgehammer to install axle pins in the replacement of axle pins in mechanical equipment.
Owner:SDIC ZHONGMEI TONGMEI JINGTANG PORT CO LTD