96 results about "Phase morphology" patented technology

The present invention comprises a novel process for the preparation of carbon based structured materials with controlled topology, morphology and functionality. The nanostructured materials are prepared by controlled carbonization, or pyrolysis, of precursors comprising phase separated copolymers. The precursor materials are selected to phase separate and self organize in bulk, in solution, in the presence of phase selective solvents, at surfaces, interfaces or during fabrication, into articles, fibers or films exhibiting well-defined, self-organized morphology or precursors of well-defined, self-organized, bi- or tri-phasic morphology. Compositional control over the (co)polymers provides control over the structure of the phase separated precursor whose organization therein dictates the nanostructure of the material obtained after carbonization or pyrolysis, wherein each dimension of the formed structure can be predetermined. When the precursor morphology is selected to comprise cylindrical domains this procedure additionally allows for the direct formation of two dimensional nanowire grids or arrays of oriented nanostructures on surfaces. When these nanowire grids or arrays are perpendicularly oriented to the surface applications include field emitters, high surface area electrodes, electronic devices such as diodes and transistors, tools for AMF tips and elements of molecular electronics. When the first nanostructured morphology is selected to form cylinders parallel to the surface then nanowire arrays are formed after pyrolysis. When the composition of the first nanostructured morphology is selected to comprise a continuous precursor matrix then a continuous carbon based nanostructured material is formed. The internal structure of the carbon based material can be selected to comprise perpendicular pores or an interconnected array of pores. The carbon based structures can additionally find application in photovoltaics, supercapacitors, batteries, fuel cells, computer memory, carbon electrodes, carbon foams, actuators and hydrogen storage.

This invention discloses conductive busbars and sealants for electrooptic devices including electrochromic mirrors and windows. The conductive busbars are formed from materials comprising nanoparticles, and the sealants comprise of additives that promote a two phase morphology and use of adhesion promotion additives with crosslinkers. Methods to deposit busbars and then to connect these busbars to electrical connectors are also disclosed.

The present invention is a method for producing a nonwoven fabric from a water modifiable polyolefin-containing film. In order to produce the fabric where polyethylene is the minority constituent, a polymer blend is formed with the polyethylene as the dispersed phase and polyethylene oxide as the continuous phase. In another embodiment wherein the polyethylene is the majority constituent and the polyethylene oxide is the minority constituent of the film, a reactive blend created during processing exhibits an inverse phase morphology so that the polyethylene oxide becomes the continuous phase and the polyethylene becomes the dispersed phase. In either embodiment, the film is then treated with an aqueous solvent to remove the polyethylene oxide to produce the nonwoven, porous fabric. The resulting nonwoven, porous fabric has a silk-like hand and shine ideal for disposable personal hygiene articles, and is flushable through waste water disposal systems.

An aluminum silicon die cast alloy having a very low iron content and relatively high strontium content that prevents soldering to dies into die casting process. The alloys of the present invention also have a modified eutectic silicon and modified iron morphology, when iron is present, resulting in low microporosity and high impact properties. The alloy comprises 6-22% by weight silicon, 0.05 to 0.20% by weight strontium and the balance aluminum. Preferably, the alloy of the present invention contains in weight percent: 6-20% silicon, 0.05-0.10% strontium, 0.40% maximum iron and most preferably 0.20% maximum iron, 4.5% maximum copper, 0.50% maximum manganese, 0.60% maximum magnesium, 3.0% maximum zinc, balance aluminum. On cooling from the solution temperature, the strontium serves to modify the eutectic silicon structure as well as create an iron phase morphology change if iron is present, facilitating feeding through the aluminum interdendritic matrix. This, in turn, creates a finished die cast product with extremely low levels of microporosity defects. The strontium content also appears to create a non-wetting monolayer of strontium atoms on the surface of a molten casting, preventing die soldering, even at very low iron contents. The alloy may be used to cast any type of object and is particularly suited for casting outboard marine propellers, driveshaft housings, gear case housings, Gimbel rings and engine blocks.

This invention discloses conductive busbars and sealants for electrooptic devices including electrochromic mirrors and windows. The conductive busbars are formed from materials comprising nanoparticles, and the sealants comprise of additives that promote a two phase morphology and use of adhesion promotion additives with crosslinkers. Methods to deposit busbars and then to connect these busbars to electrical connectors are also disclosed.

A nonwoven, porous fabric produced from a water modifiable polyolefin-containing film. In a preferred embodiment, the nonwoven fabric includes groups of elongated polyolefin fibers substantially oriented along a longitudinal axis. The fibers have branches extending from themselves and are bonded therebetween. Elongated channels extend generally parallel to the longitudinal axis on the surface of the fabric and within the fabric. A substantial portion of the channels are interconnected to other channels. To produce the fabric, a polymer blend is formed with the polyethylene as the minority constituent and the dispersed phase, and with polyethylene oxide as the continuous phase. In another embodiment wherein the polyethylene is the majority constituent and the polyethylene oxide is the minority constituent, a reactive blend is prepared during processing so that the blend exhibits an inverse phase morphology, the polyethylene oxide becoming the continuous phase and the polyethylene becoming the dispersed phase. In either embodiment, the blend is extruded into a film, which is then treated with an aqueous solvent to remove the polyethylene oxide to produce the nonwoven, porous fabric. The resulting nonwoven, porous fabric has a silk-like hand and shine ideal for disposable personal hygiene articles, and is flushable through waste water disposal systems.

A hypoeutectic aluminum silicon casting alloy having a refined primary silicon particle size and a modified iron morphology. The alloy includes 10 to 11.5% by weight silicon, 0.10 to 0.70% by weight magnesium and also contains 0.05 to 0.07% by weight strontium. On cooling from the solution temperature, the strontium serves to modify the silicon eutectic structure as well as create an iron phase morphology change. Such changes facilitate feeding through the aluminum interdendritic matrix. This, in turn, creates a finished die cast product with extremely low levels of microporosity defects. The alloy may be used to cast engine blocks for marine outboard and stern drive motors. Furthermore, when the magnesium levels are adjusted to approximately 0.10 to 0.20% by weight magnesium, propellers having a highly advantageous ductility may be obtained.

A class of nickel based alloys having a fine grain structure resistant to stress corrosion cracking, and methods of alloy design to produce further alloys within the class are presented. The alloys act as suitable welding materials in similar applications to that of Alloy 622. The fine-grained structure of these novel alloys may also be advantageous for other reasons as well such as wear, impact, abrasion, corrosion, etc. These alloys have similar phases to Alloy 622 in that they are composed primarily of austenitic nickel, however the phase morphology is a much finer grained structure opposed to the long dendritic grains common to Alloy 622 when it is subject to cooling rates from a liquid state inherent to the welding process.

The present invention provides a multi-block copolymer with polyoxyethylene unit in side chain and a polymer electrolyte containing the multi-block copolymer. Since the multi-block copolymer has a number of block of larger than 3, it can completely avoid crystallization and is easier to has phase separation morphology, especially co-continuous phase morphology, and thus has better performance. For the polymer electrolyte, co-continuous phase morphology can be achieved in a wide range of segment A content. The polymer electrolyte of the present invention is thus greatly improved in ionic conductivity and mechanical properties.

A class of nickel based alloys having a fine grain structure resistant to stress corrosion cracking, and methods of alloy design to produce further alloys within the class are presented. The alloys act as suitable welding materials in similar applications to that of Alloy 622. The fine-grained structure of these novel alloys may also be advantageous for other reasons as well such as wear, impact, abrasion, corrosion, etc. These alloys have similar phases to Alloy 622 in that they are composed primarily of austenitic nickel, however the phase morphology is a much finer grained structure opposed to the long dendritic grains common to Alloy 622 when it is subject to cooling rates from a liquid state inherent to the welding process.

The invention provides an austenite stainless steel erosion agent and a preparation method and application thereof. Ethyl alcohol serves as a solvent of the erosion agent. The solvent comprises, by per liter, 60-120 ml / L of concentrated nitric acid, 150-300 ml / L of concentrated hydrochloric acid and 100-200 g / L of ferric chloride. According to the austenite stainless steel erosion agent provided by the invention, the erosion agent is a novel erosion agent obtained through repeated exploration in the experimental process, the adverse effects of the high volatility and corrosivity of aqua regia on a human body are avoided, the situation that dotted spots are produced due to uneven corrosion through a hydrochloric acid FeCl3 water solution and the other erosion agents, and the erosion process is easy to control; in addition, a polishing effect is achieved to a certain extent, tiny scratches on the surface of an austenite alloy sample can be removed, and austenite grain boundaries and the precipitated phase morphology can be clearly and completely shown; moreover, compared with other common erosion agents, the austenite stainless steel erosion agent is stable in component, capable of being stored for a long time under an airtight condition and high in using convenience.

A golf ball comprising a cover composed of a PPDI-based thermoplastic polyurethane material. The phase morphology of the PPDI-based thermoplastic polyurethane material coupled with high levels of hard segment domain cohesion imparts excellent low temperature flexibility, rubber like elasticity, and mechanical properties to the final elastomer.

A polymeric system is disclosed wherein at least one minor polymeric component is dispersed into a major polymeric component such that the minor polymeric component is dispersed with less than micro-scale dispersed-phase morphologies.

The invention discloses a method for preparing a high-barrier polypropylene material through phase morphology and interface crystallization regulation. The method is characterized in that a micro-nanolaminating co-extrusion device is utilized for in-situ micro-fibrillation of a high-barrier polymer containing an alpha nucleating agent in polypropylene; phase morphology regulation is organically combined with interface crystallization regulation, and a multi-layer microstructure of oriented microfibers and interlocking alpha transverse crystals is built in the polypropylene; the gas barrier property of the polypropylene is improved by using the multi-layer microstructure. According to the method, the interface structure of the high-barrier polymer and the polypropylene is optimized in an interface crystallization way under the condition without a compatilizer, and the problem is solved that in a common preparation technology, interactions between the interfaces of the high-barrier polymer and the polypropylene are weak, so that further improvement of the gas barrier property is restricted. The devices involved in the method are easy to operate, dies are easy to process, the manufacturing cost is low, continuous production is achieved, the production efficiency is high, and the method has good industrial application prospects.

The invention discloses a synchronous laser heat treatment method for laser additive manufacturing a nickel-based high-temperature alloy. According to the method, morphology size and distribution of Laves phase can be effectively regulated and controlled, the Laves phase is converted into a discrete granular shape from a deposited continuous long strip, and the volume fraction of the Laves phase is obviously reduced along with extension of the laser heat treatment time. According to the laser heat treatment method, synchronous heat treatment in a deposition forming process can be realized, local area Laves phase morphology and distribution can be regulated and controlled under the condition that the tissue performance of a laser repair base material area is not influenced, the granular Laves phase which are fined and dispersion distributed is obtained, so that the overall mechanical property of parts is improved, and effective utilization can be obtained in the repair and remanufacturing of the high-temperature alloy structural member; and in addition, the method can also be applied to the fields of high-temperature alloy material preparation, high-temperature alloy structural member rapid manufacturing and the like.

The invention discloses a polyhydroxyalkanoate composite material and a preparation method thereof. The polyhydroxyalkanoate composite material is composed of the following raw materials in parts by weight: 90-120 parts of polyhydroxyalkanoate, 10-80 parts of starch, 1-25 parts of alcohol plasticizer, 20-100 parts of ester copolymer, 0.1-5 parts of anhydride and 0.01-2 parts of radical initiator. The polyhydroxyalkanoate composite material obtained by the preparation method provided by the invention is capable of remarkably improving the elasticity and strength of the PHA composite material and thinning the phase morphology of the PHA composite material. The composite material has the advantages of small starch particle size, good material elasticity, low cost biodegradability and the like; and the preparation method of the composite material is simple and easy to realize industrialization.

The invention discloses a high temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material and a preparation method thereof. The high temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material comprises: by weight, 30 to 55% of polyphenylene sulfide, 30 to 60% of glass fibers, 0 to 10% of one or more compatibilizers, 0 to 10% of one or more polyolefins, 0 to 20% of one or more high-performance engineering plastics, 1 to 2% of one or more nucleating agents and 0.5 to 1% of auxiliary agents. The preparation method is characterized in that through an interface reaction, phase morphology control is realized and through nucleation induction, a crystallization rate is improved so that good interface compatibility and structure reinforcement are realized. The high temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material has the advantages of low density, high strength, good toughness, high temperature resistance and good formability and is suitable for fields of automobile parts, household appliances and chemical engineering having high temperature resistance, corrosion resistance, torsion and compression resistance, low creep deformation and low cost requirements.

The invention discloses a high damping Mg-Sn-Ce alloy containing trace rare-earth and a preparation process thereof. The magnesium alloy is mainly composed of three elements Mg, Sn and Ce, and comprises the following alloying element components distributed in the alloy in percentage by weight: 0.5%-3.5% of Sn, 0.40%-0.49% of Ce, and the balance of magnesium and inevitable impurities. According to the high damping Mg-Sn-Ce alloy, the contents of Sn and Ce are designed through reasonable components, and an appropriate smelting process is adopted to prepare a regular parallel second-phase structure which is conductive to the damping performance of the alloy. The alloy components and the smelting process are controlled in a production process, such that second-phase morphology and distribution in the alloy can be controlled and the damping performance (SDC=41%) of the alloy can be effectively improved; and a density of the alloy is lower than 2g / cm<3>. The process of the present invention is simple, high in portability, low in cost and easy to operate, and can be widely applied to national defense and civilian use industries to achieve the effects of light weight, and vibration and noise reduction.

The invention discloses a wear-resistant aluminum alloy. The ware-resistant aluminum alloy comprises, by weight percentage, 10-12% of Si, 8-12% of Mg, 0.8-1.6% of Fe, 0.3-0.7% of Mn, 0.3-0.7% of Cr, 0.05-0.1% of Sr and the balance aluminum. The invention further discloses a preparation method of the wear-resistant aluminum alloy. According to the wear-resistant aluminum alloy and the preparation method of the wear-resistant aluminum alloy, Mn-Cr element complex modification is adopted, in combination with a vibrating cast technology, the Fe phase is changed into the granular shape from the long needle shape, the Fe phase morphology in the alloy is optimized, the hardness value is increased remarkably, the bearing capacity in the wear process can be improved, the wear resistance can be improved remarkably, and the tensile strength is improved remarkably.

The invention discloses a high oxygen barrier polyethylene / nylon 6 nanocomposite material and a preparation method thereof. A lamellar dispersion phase form is obtained through regulating the viscosity of a matrix phase and the properties of a phase interface in order to improve the barrier performance of the material and a product. The preparation method is unaffected by a product molding process, has the advantages of strong universality, wide application range, simple process and easy operation, and is very suitable for industrial production. The preparation method is simple and easy, and the material has the advantages of wide sources, low cost and good use effect.

The invention discloses a method for preparing a polymer blending material. The method for preparing the polymer blending material is characterized by comprising the following steps: mixing and granulating two polymers according to certain proportion, conveying grain materials by an extruder in a bidirectional stretching, mixing and forming integrated device, plasticizing, fusing, mixing the two polymers uniformly when the fusing body is subjected to bidirectional stretching effect of a mixer, and reducing the size of a phase field to reach the capacity increasing effect, thereby obtaining the blending material with excellent performance. The method for preparing the polymer blending material, which is provided by the invention, solves the problems that the traditional blending means cannot optimize the phase morphology and the technology is complex; moreover, the method is simple to operate, can be used for producing continuously, is convenient to operate and control, is stable in quality, is high production efficiency, and has wide industrialization and market prospects.

The invention provides a preparation method of a gas barrier material. The preparation method comprises following steps: a matrix resin, a high barrier performance resin, and a peroxide are subjectedto blending, and an obtained mixture is subjected to moulding so as to obtain the gas barrier material. According to the preparation method, thermoplastic polyurethane and high barrier performance resin are combined, and the phase morphology of the high barrier performance resin in the matrix resin is adjusted to prepare gas barrier membranes or gas barrier sheets excellent in gas barrier performance. The preparation method is simple, is convenient for large scale production, is suitable for preparation of any thermoplastic polyurethane based gas barrier materials, and can be widely used in preparation of skin materials in aviation spaceflight field such as skin materials on ships and floating equipment.

Disclosed are polymerizable mixtures comprising a functionalized ionic gemini surfactant and a thiol-ene crosslinking agent. The polymerizable mixtures that further comprise a polar solvent may be used to form the surfactant into a triply periodic multiply continuous lyotropic phase in the presence of the crosslinking agent. Upon crosslinking, the lyotropic phase morphology is substantially retained.

A superabsorbent composition comprising a superabsorbent material and an elastomer. The superabsorbent composition has a two-phase morphology resulting in one of the superabsorbent material and elastomer being dispersed as aggregates in the other continuous material. The superabsorbent composition has a low glass transition temperature. The low glass transition temperature gives the superabsorbent composition many beneficial properties. This invention also discloses novel superabsorbent particles, fibers, films, and microporous films. Also disclosed in this invention are personal care articles comprising such particles, fibers, films and microporous films.

The invention relates to a comfortable fire resistant fiber and a preparation method thereof. The preparation method comprises the steps of blending a cellulose or acrylonitrile copolymer and an inherent flame retardant macromolecule according to the proportion, dissolving in a solvent to prepare a spinning solution, adopting a high-power spray head for stretching through controlling the viscosity ratio of a blend material, and obtaining the blend fiber with a fiber surface layer rich with inherent flame retardant macromolecules. The limit oxygen index of the blend fiber is 27 to 32 percent, the fire self-extinguish time is less than or equal to 5s, the equilibrium moisture regain is 8 to 15 percent, the breaking strength is 2.6 to 5.5cN / dtex, and the content of the inherent flame retardant macromolecule in the blend fiber is 5 to 18 weight percent. According to the comfortable fire resistant fiber and the preparation method thereof provided by the invention, a two-phase type in the blend fiber can be effectively adjusted, a flame retardant property of the blend fiber is improved, the content of the inherent flame retardant fiber is reduced, and the preparation method has the characteristics of simple process and low cost, and has an important significance on developing the eco-friendly comfortable fire resistant fiber with low cost.

The invention relates to a copolymer compatilizer. Copolymer comprises 50-80wt% of alkenyl monomer of with solubility parameter between 16.5-23(MPa)1 / 2, 0.1-10wt% of functional monomer and 10-40wt% offunctionalized liquid polybutadiene. Structure of the copolymer compatilizer is shown as follows, wherein R1 refers to -H or -COOH, R2 refers to -H or -CH3, X refers to -OH, -COOH or -NH2, and repeating unit number n is an integer between 10 and 200. The invention further provides a preparation method and application of the copolymer compatilizer. Compared with the prior art, the trielement copolymer has the advantages that the copolymer can be stably distributed on two-phase interfaces of polyester or polyamide and ABS, can improve phase morphology and improve mechanical performance of alloy, especially impact performance.

The invention discloses an organic / inorganic hybrid nanometer porous anti-reflection coating layer; the organic / inorganic hybrid nanometer porous anti-reflection coating layer, with the thickness of 42.5-162.8nm, porosity of 23.2%-56.9% and aperture of 5-10nm, is gained through a sol-gel process by taking poly-(methyl methacrylate-b- methacryloxypropyltriethoxysilane) as precursor or through the sol-gel process by taking the mixture of the poly-(methyl methacrylate-b-methacryloxypropyltriethoxysilane) and tetraethyl orthosilicate; the invention takes the micro-phase morphology of the block copolymer after the micro-phase separation as a template so as to prepare the organic / inorganic hybrid nanometer porous anti-reflection coating layer; the aperture size is easy to be controlled; furthermore, the distribution of the aperture is uniform, and the basic framework of the anti-reflection layer has Si-O-Si structure; the organic / inorganic hybrid nanometer porous anti-reflection coating layer has excellent mechanical performance, creasing resistance and friction resistance, is rich in Si-OH functional group and can effectively solve the adhesion problem caused by anti-reflection coating layers and various substrates prepared by the prior art.

The invention discloses a predeformation auxiliary heat treatment and rolling method of high-volume-fraction second-phase magnesium alloy. The predeformation auxiliary heat treatment and rolling method of the high-volume-fraction second-phase magnesium alloy comprises the steps that a magnesium alloy blank is cast and rolled at the temperature of 200-350 DEG C and is maintained at the temperatureof 5-45 minutes, then predeformation rolling is conducted by 1-3 passes, and the rolling reduction of each pass is 3-25%; after predeformation, the magnesium alloy is heated to the temperature of 200-430 DEG C under the protection of inert gas and is maintained at the temperature for 30-300 minutes; the plate blank is rolled by 7 passes and maintained at the temperature of 300-400 DEG C for 5-30 minutes in each pass; the sheet is heated to the temperature of 200-375 DEG C under the protection of inert gas, and annealing heat treatment is conducted for 10-200 minutes, so that a magnesium alloyboard with evenly and dispersely-distributed second phases and fine grain tissue is obtained. By adoption of the predeformation auxiliary heat treatment and rolling method of the high-volume-fractionsecond-phase magnesium alloy, the large-size chain-shaped second-phase morphology of the magnesium alloy is improved, the problem that sufficient solid solution of large segregation phases still cannot be achieved at a high temperature for a long time is solved, and the problems of edge cracks, middle breakage and difficult rolling formation in the rolling process are also solved; and the board tissue is fine and uniform, the second-phase morphology is regular, and high tenacity is achieved in the indoor-temperature drawing process.