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75 results about "Aging property" patented technology

High-performance PC / PP modified material

PendingCN120158065APolymer scienceUv absorber
The invention discloses a high-performance PC / PP modified material which is prepared from the following components in parts by weight: 40-70 parts of PC, 5-15 parts of siloxane PC, 20-40 parts of PP, 3-8 parts of a toughening agent, 2-6 parts of a compatilizer, 0.3-1 part of an antioxidant and 0.5-2 parts of an ultraviolet light absorber. Melt blending is performed at 230-280 DEG C through a twin-screw extrusion process, so that the problem of poor compatibility of PC and PP is solved. The notched impact strength of the obtained material at-40 DEG C reaches 80-120 J / m, the tensile strength retention rate after damp-heat aging is larger than 90%, and the material has excellent mechanical properties, low temperature resistance and aging resistance and is suitable for automobile parts and outdoor electronic equipment shells.
Owner:GANSU YINGUANG JUYIN CHEM IND CO LTD

High-cohesiveness anti-aging tile adhesive and preparation method thereof

ActiveCN120289136AEpoxyPolymer science
The invention relates to the technical field of building materials, in particular to high-cohesiveness anti-aging tile glue and a preparation method thereof. The high-cohesiveness anti-aging ceramic tile adhesive is prepared from the following components in parts by weight: 10 to 50 parts of epoxy functional siloxane resin, 40 to 60 parts of cement, 5 to 20 parts of hardening agent, 5 to 10 parts of thickening agent, 1 to 5 parts of antioxidant and 20 to 30 parts of filler, the structural formula of the epoxy functional siloxane resin is as follows: # imgabs0 #. The ceramic tile adhesive has excellent cohesiveness and ageing resistance.
Owner:LECCO HLDG (GUANGDONG) GRP CO LTD

Anti-aging cable for photovoltaic power generation

The invention discloses an anti-aging cable for photovoltaic power generation and a preparation method thereof, and relates to the technical field of cables. The anti-aging cable for photovoltaic power generation prepared by the invention comprises a conductor and a protective layer, the protective layer comprises modified polyethylene, modified silicon dioxide and phenylamino-terminated silicone oil, and the modified polyethylene is obtained by grafting polyethylene with N, N-dimethyl-3-buteneamine and then reacting with 3-(tert-butyl)-5-(chloromethyl)-2-hydroxybenzaldehyde; the modified silicon dioxide is obtained by grafting pretreated silicon dioxide with stilbene phosphine oxide and then carrying out formylation; and finally, uniformly mixing and extruding the modified polyethylene, the modified silicon dioxide and the phenylamino-terminated silicon oil to obtain the protective layer. The anti-aging cable for photovoltaic power generation prepared by the invention has good flame retardance, mechanical property and anti-aging property.
Owner:GUANG DONG LI GUANG DIAN QI SHI YE YOU XIAN GONG SI

Epoxy insulating material aging characteristic joint evaluation characterization method

The invention belongs to the technical field of epoxy material aging evaluation methods, particularly relates to a joint evaluation characterization method for aging characteristics of an epoxy insulating material, and aims to solve the problems that in the prior art, a method for simultaneously carrying out comprehensive evaluation on aging of epoxy resin on thermal, electromagnetic and mechanical property changes is lacked, and most of existing methods adopt simple threshold comparison. And the accuracy and objectivity of an evaluation result are limited. The characterization method comprises the following steps: providing an epoxy insulating material sample; comprehensive aging treatment of electrical aging, thermal aging and mechanical aging is applied to the epoxy insulating material sample so as to obtain epoxy insulating material samples aged at different time lengths; respectively measuring a thermal performance parameter, an electromagnetic performance parameter and a mechanical performance parameter corresponding to each aging time length; and inputting the obtained performance parameters into the neural network model, and outputting the aging grade and the aging factor of the epoxy insulating material so as to complete the joint evaluation of the aging characteristics of the epoxy insulating material.
Owner:YUNNAN POWER GRID CO LTD +1

Skin-touch coating for glass substrate and preparation method of skin-touch coating

PendingCN120192688ACoatingsPolymer scienceMeth-
The invention provides a skin-touch coating for a glass substrate and a preparation method of the skin-touch coating. The skin-touch coating is prepared from the following components in parts by weight: 30 to 50 parts of modified acrylic resin, 2 to 5 parts of trimethylolpropane triacrylate, 0.2 to 1 part of flatting agent, 0.2 to 1 part of defoaming agent, 0.5 to 1.5 parts of curing agent, 5 to 10 parts of adhesive agent and 10 to 30 parts of deionized water. The prepared skin-touch coating can improve the adhesive force, pencil hardness and ultraviolet aging resistance of a glass substrate, and the skin-friendly smooth surface also brings better skin-touch experience to a user.
Owner:CHUZHOU JINQIAO TEXAS NEW MATERIALS CO LTD

Polyethylene flame-retardant master batch and production process thereof

PendingCN121554844APolymer scienceHigh density
The invention relates to the technical field of high polymer materials, in particular to a polyethylene flame-retardant master batch and a production process thereof. The polyethylene flame-retardant master batch is prepared from the following raw materials in parts by weight: 50 to 60 parts of polyethylene, 10 to 20 parts of hydroxymethyl phosphinic acid, 15 to 20 parts of HDPE-g-MAH, 0.8 to 1.5 parts of an initiator, 1 to 2 parts of an antioxidant and 3 to 6 parts of functional particles. The polyethylene is selected from high-density polyethylene, and the melt index of the polyethylene is 7-20g / 10min under the conditions of 190 DEG C and 2.16 kg; the polyethylene flame-retardant master batch produced by the invention not only can effectively enhance the flame retardant property of a polyethylene product, but also can effectively improve the anti-aging property of the polyethylene product; and the service life of the polyethylene product is prolonged to a certain extent while the quality of the polyethylene product is ensured.
Owner:ANHUI XINGBEIDA NEW MATERIAL TECH CO LTD

Butyl self-adhesive TPO (Thermoplastic Polyolefin) polymer waterproof coiled material

The utility model discloses a butyl self-adhesive TPO (thermoplastic polyolefin) polymer waterproof coiled material, which comprises a TPO polymer layer, the TPO polymer layer is divided into three layers, namely an upper TPO layer, a middle TPO layer and a lower TPO layer, a first isolating layer is arranged between the upper TPO layer and the middle TPO layer, a second isolating layer is arranged between the middle TPO layer and the lower TPO layer, and the TPO polymer layer is arranged between the upper TPO layer and the lower TPO layer. Isolating membranes are arranged in the first isolating layer and the second isolating layer, composite butyl raw rubber is adhered to the surfaces of the isolating membranes, an upper waterproof layer is arranged at the top of the upper TPO layer, and a lower waterproof layer is arranged at the bottom of the lower TPO layer. According to the utility model, the waterproof performance and the aging resistance of the butyl coiled material can be improved.
Owner:HEFEI ZHONGTONG WATERPROOF ENG CO LTD

Phosphonic acid for enhancing performance of thermal interface materials

The present disclosure relates to phosphonic acids for enhancing the performance of thermal interface materials. Specifically, the present invention relates to the use of phosphonic acid for enhancing the performance of thermal interface materials (generalized, composites), for example by improving rheological properties, improving aging properties, improving shelf life, improving stickiness / adhesion, and / or reducing diffusion of materials (if any) migrating therefrom (e.g., reduced diffusion of oil exudate, etc. The present disclosure also relates to methods of enhancing the performance of composites for managing thermal and / or electromagnetic interference (EMI) using phosphonic acid. The composites may include thermal management and / or electromagnetic interference (EMI) mitigation materials, such as thermal interface materials (TIMs), EMI absorber materials, thermally conductive EMI absorber materials, electrically conductive materials, combinations thereof, etc.
Owner:LAIRD TECHNOLOGIES INC

A fireproof and aging-resistant high-reflection aluminum-plastic composite film, its preparation method, and its application in improving the power generation efficiency of the back side of a photovoltaic cell

The present invention relates to a fireproof and aging-resistant highly reflective aluminum-plastic composite film, a preparation method thereof, and an application in improving the power generation efficiency of the back side of a photovoltaic cell, belonging to the technical field of photovoltaic materials. The fireproof and aging-resistant highly reflective aluminum-plastic composite film of the present invention comprises a transparent protective layer, a vacuum aluminized polypropylene film, and a polyethylene substrate that are sequentially laminated. It has fireproof and aging-resistant properties, and at the same time has good tensile strength, elongation rate, and light reflection performance. When the highly reflective aluminum-plastic composite film of the present invention is laid on the ground of a photovoltaic power plant, it can reflect the sunlight irradiated on the ground to the back side of the photovoltaic module through the gaps between the modules, enabling the back side of the double-sided double-glass photovoltaic module to generate electricity, with the power generation efficiency increased by 20% - 30%. Moreover, the composite film simultaneously plays the roles of weed prevention, dust prevention, and erosion prevention, solving the problems of weeds, dust, and soil erosion on the ground of the photovoltaic power plant.
Owner:SHANDONG TIANREN NEW MATERIALS CO LTD

Uvioresistant reinforced toughened pps material and process for its preparation

This invention relates to the field of polymer materials technology, specifically to a UV-resistant reinforced and toughened PPS material and its preparation method. The invention involves mixing PPS, a toughening agent, a reinforcing agent, a silane coupling agent, an anti-aging composite material, an anti-aging material, and additives to obtain a mixture. This mixture is then melt-extruded, water-cooled, air-cooled, and pelletized to obtain a finished PPS material. The finished product prepared by this invention possesses excellent anti-aging properties and mechanical properties, thus having broad application prospects in the field of polymer materials technology.
Owner:NINGBO LANGSHENG NEW MATERIAL TECH CO LTD

High-performance composite material with anti-aging property and injection molding process thereof

ActiveCN120040865BPolymer sciencePhosphate
The present application relates to the technical field of high polymer, in particular to a kind of anti-aging high-performance composite material and its injection molding process.The acidized spirocyclic phosphate is prepared by adding phosphorus oxychloride, pentaerythritol and formic acid.A kind of composite flame retardant is prepared by mixing reaction of acidized spirocyclic phosphate, phosphorus heteroheptacyclo-acrylamide double bond derivative, phosphorus heteroheptacyclo-allyloxy double bond derivative and phosphorus hetero-link-benzenediol diallyl double bond derivative.Then, high-performance composite material is obtained by adding polypropylene, acrylonitrile-butadiene-styrene copolymer, compatibilizer, inorganic filler, antioxidant, anti-aging agent, composite flame retardant and lubricant, and by melt extrusion and granulation.The high-performance composite material is injection molded to obtain finished product.The finished product prepared by the present application has good flame retardancy, anti-aging property and mechanical property, so it has wide application prospect in the technical field of high polymer.
Owner:CHANGZHOU HANYANG POLYMER MATERIAL TECH CO LTD

High-tenacity anti-aging pe blown film and preparation method thereof

PendingCN122404763APolymer scienceCrazing
The present application relates to the technical field of PE blown film, and particularly relates to a high-toughness anti-aging PE blown film and a preparation method thereof.The present application takes PE resin as a base material, and is compounded with a repair capsule, a modified carbon nanotube agent and a hexagonal boron nitride additive agent.Through synergistic effect of the three layers of functional components, the problems of poor interface compatibility, agglomeration, decreased toughness and barrier property, weak self-repairing and anti-aging performance, poor water resistance stability and the like of the traditional PE blown film after adding inorganic flame retardant are solved.The repair capsule gives the film the self-repairing ability for cracks and scratches, and the modified carbon nanotube agent and the hexagonal boron nitride additive agent are coordinated to synchronously improve the toughness, flame retardancy, barrier property, anti-aging property and water resistance stability of the film, and the comprehensive performance of the product is balanced, and the product is suitable for packaging, building materials, electronic protection and other scenes with high requirements for toughness and weather resistance.
Owner:QINGDAO YONGCHANG PLASTIC&METAL CO LTD

High-adhesion anti-aging ceramic tile adhesive and preparation method thereof

ActiveCN120289136BEpoxyAdhesive
The application relates to the technical field of building materials, in particular to high-adhesion anti-aging ceramic tile glue and a preparation method thereof. The high-adhesion anti-aging ceramic tile glue comprises the following components in parts by weight: 10-50 parts of epoxy-functionalized siloxane resin, 40-60 parts of cement, 5-20 parts of hardening agent, 5-10 parts of thickening agent, 1-5 parts of antioxidant and 20-30 parts of filler; the structural formula of the epoxy-functionalized siloxane resin is shown in the description. The ceramic tile glue has excellent adhesion and anti-aging property.
Owner:LECCO HLDG (GUANGDONG) GRP CO LTD

Anti-aging corrosion-resistant cable

The utility model discloses an anti-aging corrosion-resistant cable which comprises an outer rubber layer, an inner rubber layer is arranged inside the outer rubber layer, a positioning block is fixedly connected inside the inner rubber layer, and the center line of the inner rubber layer and the center line of the outer rubber layer are on the same vertical plane. According to the anti-aging corrosion-resistant cable, the anti-aging coating and the corrosion-resistant coating are arranged, the outer rubber layer of the cable is uniformly coated with the anti-aging coating, and the anti-aging coating has a good anti-aging effect, so that after the cable is laid, the anti-aging coating can effectively prevent the outer layer of the cable from being rapidly aged; according to the cable, the anti-aging coating is coated outside the cable, the anti-corrosion coating is coated outside the anti-aging coating, the anti-corrosion coating can effectively protect the anti-aging coating and prevent the anti-aging coating from being damaged to affect the anti-aging effect, meanwhile, the anti-corrosion coating can enhance the anti-corrosion effect of the cable, and the problem that the anti-aging effect is poor is solved.
Owner:NINGBO ZHIHENG CABLE CO LTD

High-temperature pavement crack sealant and its preparation method

The present invention provides a high-temperature pavement joint sealant and a preparation method thereof, which relates to the technical field of pavement maintenance. The components include a premix, a polymer modifier, a tackifier, a stabilizer, and a filler; the filler contains a finely separated recycled material. The high-temperature pavement joint sealant of the present invention has the characteristics of high temperature and high resilience by adding rubber-modified asphalt, improves the low-temperature performance by adding a polymer modifier, ensures the viscosity and durability by adding a tackifier, and ensures the stability and anti-aging property by adding a stabilizer. Each material plays a synergistic role to balance the comprehensive performance of the joint sealant, making the joint sealant have good high-temperature stability performance, while balancing the low-temperature performance and elastic recovery performance, being more environmentally adaptable, and having a lower high-temperature viscosity. The performance of the joint sealant is balanced, the construction is convenient, and the cost is low. The present invention realizes the simple and efficient recycling of the finely separated recycled material by adding the finely separated recycled material, and solves the problem of low recycling rate of the finely separated recycled material.
Owner:浙江顺畅高等级公路养护有限公司 +1

Method for evaluating aging characteristics of oil impregnated paper based on microscopic parameters

The invention provides a method for evaluating the aging characteristic of oil-impregnated paper based on microscopic parameters, which comprises the following steps of: constructing an oil-impregnated paper model of insulating paper and insulating oil, and performing molecular dynamics simulation on the oil-impregnated paper model to obtain physical parameters related to the aging life of the oil-impregnated paper, such as a self-diffusion coefficient, isobaric heat capacity, the number of hydrogen bonds, the service life of the hydrogen bonds and the like from the oil-impregnated paper model; the aging performance of the oil-impregnated paper is evaluated through physical parameters of the materials, the accuracy is high, manpower and time are saved, and theoretical guidance is provided for accurately, efficiently and conveniently evaluating the aging performance of the oil-impregnated paper delayed by different insulating oils.
Owner:CHINA UNIV OF MINING & TECH

Anti-aging insulating paint and preparation method thereof

The invention relates to the technical field of coatings, in particular to an anti-aging insulating coating and a preparation method thereof.The insulating coating is prepared from, by weight, 15-25 parts of hydroxyl-terminated polysiloxane, 2-5 parts of diluent, 0.5-3 parts of cross-linking agent, 30-35 parts of filler, 0.01-0.03 part of catalyst and 42-47 parts of solvent. The insulating paint prepared by the invention has the advantages of higher mechanical strength, favorable aging resistance and favorable insulating property.
Owner:河北汉东电力设备有限公司

Low-anisotropy hot-dip aluminum-silicon 180 MPa grade phosphorus-containing high-strength steel and preparation method thereof

According to the low-anisotropy hot-dip aluminum-silicon 180 MPa grade phosphorus-containing high-strength steel and the preparation method thereof, a hot-dip aluminum-silicon automobile outer plate is prepared through low-cost component design and ingenious combination of heat treatment and an aluminum-silicon plating process, the yield strength of a steel plate of the hot-dip aluminum-silicon automobile outer plate ranges from 180 MPa to 220 MPa, the tensile strength is larger than or equal to 320 MPa, the percentage elongation after fracture is larger than or equal to 43%, the plastic strain ratio r value is larger than or equal to 2.2, and the hot-dip aluminum-silicon automobile outer plate is suitable for being used as a steel plate. According to the high-strength steel and the manufacturing method thereof, the isotropic special-shaped index delta r value is smaller than or equal to 0.2, the work hardening index n value is larger than or equal to 0.23, the structure of the manufactured high-strength steel comprises ferrite, a Ti (N, C) precipitated phase, an NbC precipitated phase and a Cu-rich phase, and the automobile outer plate has excellent forming performance, high surface quality, no timeliness and small anisotropy value.
Owner:ANGANG STEEL CO LTD

Preparation process of montmorillonite and resin composite material with high barrier property

PendingCN121427146AFiberGas cylinder
The invention discloses a preparation process of a montmorillonite and resin composite material with high barrier property, and relates to the technical field of composite materials. According to the process, four cores of directional modification of montmorillonite, precise construction of a one-dimensional-two-dimensional reinforced composite system, regulation and control of a resin matrix interface and RTM forming process collaboration are integrated, and efficient nanoscale dispersion of montmorillonite in resin and ordered orientation arrangement in the axial direction of fibers are achieved through a modifier molecular structure design and a multi-field coupling dispersion technology; meanwhile, through the precise proportion of the interface compatilizer and the gradient curing process design, the technical bottlenecks that in a traditional composite material, montmorillonite is agglomerated, the interface bonding is weak, and the barrier property and the mechanical property are difficult to consider at the same time are solved. The material has excellent high and low temperature stability and anti-aging performance, and can meet the harsh use requirements of light-weight structural members such as automobile body covering parts and gas cylinder covers. The process is environmentally friendly and efficient, the cost is controllable, and synergistic improvement of high barrier, high toughness and light weight is achieved.
Owner:GUIZHOU HUAYUN AUTOMOBILE DECORATING PART MFG CO LTD

Water-based paint for leather surface waterproofing

The invention relates to a water-based paint for leather surface waterproofing, and belongs to the technical field of coatings. The water-based paint is prepared from the following components: 70 to 85 percent of polyethersulfone modified polyurethane-acrylate composite resin dispersion, 3 to 7 percent of a cross-linking agent, 5 to 15 percent of an anti-sticking agent, 5 to 15 percent of a cosolvent, 8 to 12 percent of a nano reinforcing material and 1 to 2 percent of amino-terminated hyperbranched polyamide. Wherein the core resin dispersion is prepared by chemically grafting sulfonated polyethersulfone to a polyurethane-acrylate skeleton. Through the unique resin chemical modification and nano-composite technology, the obtained coating has excellent waterproofness, high adhesive force, good mechanical strength and aging resistance, is especially suitable for high-requirement leather surface treatment of automotive interiors, furniture and the like, and meets the environment-friendly requirement at the same time.
Owner:HUASHI(FUJIAN) SCI & TECH CO LTD

Ultra-light release film as well as preparation method and application thereof

The invention provides an ultralight release film as well as a preparation method and application thereof. The ultra-light release film comprises a micro-convex PET (Polyethylene Terephthalate) base film and a release layer formed by coating a release agent on the PET base film layer, the release agent is prepared from the following raw materials in parts by weight: 60 to 100 parts of organosiloxane resin A, 10 to 50 parts of organosiloxane resin B, 0.05 to 0.2 part of an inhibitor, 0.55 to 1.45 parts of a crosslinking agent containing silicon-hydrogen bonds, 0.2 to 0.5 part of an adhesion additive, 1.55 to 3.45 parts of a platinum complex catalyst and 300 to 1200 parts of an organic solvent. The anti-aging coating has the advantages of excellent anti-aging property, excellent residual adhesion rate and no powder falling risk.
Owner:SICHUAN YUXI ELECTRONICS TECH CO LTD

Ageing-resistant light soft flame-retardant medium-voltage cable

The utility model discloses an aging-resistant light soft flame-retardant medium-voltage cable, which comprises a cable core, the cable core comprises a wire core and a filling layer, a mica belting layer is arranged outside the cable core, an inner protection layer is arranged outside the mica belting layer, a tinned copper wire braid layer is arranged outside the inner protection layer, and the tinned copper wire braid layer is arranged outside the tinned copper wire braid layer. The composite flame-retardant layer is arranged outside the tinned copper wire braid layer, the outer sheath is arranged outside the composite flame-retardant layer, the outer wall of the outer sheath is coated with the anti-aging coating, the filling layer and the protective layer in the medium-voltage cable are made of light materials, the weight of the medium-voltage cable can be greatly reduced, the outer sheath is made of polyurethane, and therefore the medium-voltage cable is not prone to falling off due to the fact that the composite flame-retardant layer is arranged outside the tinned copper wire braid layer. The cable has high tear resistance, keeps excellent bending resistance and can be used in a repeated bending environment, and the aging-resistant coating is coated outside the outer sheath, so that the aging resistance of the cable is improved, and the cable has good weather resistance and aging resistance and can resist environmental factors such as ultraviolet rays, oxygen and moisture to a certain extent.
Owner:JIANGSU YUANFANG CABLE FACTORY

Long-life anti-aging acrylic pressure-sensitive adhesive protective film and preparation method thereof

The invention relates to the technical field of adhesive materials, and discloses a long-life anti-aging acrylic pressure-sensitive adhesive protective film and a preparation method thereof, the long-life anti-aging acrylic pressure-sensitive adhesive protective film comprises the following raw materials by weight: 50-70 parts of a modified acrylic emulsion, 5-8 parts of a nanometer material, 0.1-0.3 part of a surface treating agent, 1-3 parts of a photoinitiator, 0.5-1 part of an antioxidant, and 0.2-0.5 part of a cross-linking agent. The acrylic pressure-sensitive adhesive protective film has good ultraviolet resistance and aging resistance, by adding a surface-treated nano material, the tolerance to a high-temperature environment is improved, the service life is effectively prolonged, meanwhile, the aging resistance in the high-temperature environment can be effectively improved, and the working performance is excellent and stable.
Owner:TAIXING LIANCHUANG INSULATION MATERIAL CO LTD

High-wear-resistance silicon PU composite layer, preparation method thereof and application of high-wear-resistance silicon PU composite layer in preparation of ball field surface layer

The invention discloses a high-wear-resistance silicon PU (polyurethane) composite layer, a preparation method thereof and application of the high-wear-resistance silicon PU composite layer in a ball field surface layer, and particularly belongs to the technical field of organic silicon modified polyurethane. The composite layer adopts a three-layer structural design and comprises a closed priming coat, an elastic wear-resistant layer and a functional finishing coat from bottom to top; according to the elastic wear-resistant layer, modified Si3N4 / graphene composite powder, hydroxyl-terminated polybutadiene and siloxane in a component A are mixed with a component B of an isocyanate prepolymer according to the mass ratio of 1: 1.1-1.2, and the wear resistance and rebound resilience are remarkably improved; nano-zirconia dispersion liquid is introduced into the functional finishing coat to cooperate with a specific polyurethane system, so that the ageing resistance and the surface hardness are enhanced; according to the closed bottom coating, epoxy silane oligomer is used as a main body to reinforce the adhesive force of a base surface, and the composite layer has excellent wear resistance, mechanical property, aging resistance and rebound resilience.
Owner:GUANGDONG XINHAOYUAN TECH CO LTD

Preparation method of anti-aging high-density polyethylene composite material for pipelines

InactiveCN120518940AElastomerPolyolefin
The invention relates to the technical field of polyethylene, and discloses a preparation method of an anti-aging high-density polyethylene composite material for pipelines, which comprises the following steps: uniformly mixing polyethylene, POE (Polyolefin Elastomer), styrene, a functionalized hindered amine light stabilizer, functionalized silver-loaded zinc oxide whiskers and the like, and grafting a functionalized auxiliary agent into a matrix material under the initiation of an initiator, thereby obtaining the anti-aging high-density polyethylene composite material for pipelines. The anti-aging high-density polyethylene composite material for the pipeline is prepared by the following steps of: adding an inorganic whisker material, reducing the precipitation effect of the inorganic whisker material, improving the compatibility of the whisker and a matrix material, and uniformly dispersing the whisker in the matrix material. The polyethylene composite material prepared by the invention has excellent long-acting antibacterial property, mechanical property and anti-aging property, and can be used for preparing the anti-aging high-density polyethylene composite material for the pipeline. Wide application prospects are realized in the field of pipes.
Owner:ANHUI OUPO PIPE TECH CO LTD

High-performance automobile sound insulation and noise reduction damping fin and preparation method thereof

The invention discloses a high-performance automobile sound insulation and noise reduction damping fin and a preparation method of the high-performance automobile sound insulation and noise reduction damping fin, and belongs to the technical field of damping fins. 100 to 150 parts of barium sulfate; 30 to 50 parts of polyisobutene; 5 to 20 parts of silicon dioxide; 0.1 to 1 part of carbon black; 1-5 parts of an anti-aging agent; and 150 to 200 parts of iron powder. The preparation method comprises the following steps: weighing the raw materials, mixing and pretreating; performing mixing; extruding into a sheet shape; calendaring to adjust the thickness and the flatness; and cooling and curing. After the formula is optimized, the cost is reduced, the mixing and processing processes of the raw materials are possibly smoother, and the loss and waste in the production process are reduced; the product has excellent vibration and noise reduction performance, good heat resistance, cold resistance and aging resistance, performance limitation can be reduced, and the service life of the damping fin is prolonged.
Owner:AIHUA (ZHEJIANG) NEW MATERIAL CO LTD

Phosphonic acids for enhanced performance of thermal interface materials

To provide a composite material used for managing thermal characteristics of a device or a system and having improved performance.SOLUTION: The present disclosure relates to the use of phosphonic acids to enhance the performance of thermal interface materials (broadly, composite materials), for example, by improving rheological properties, improving aging characteristics, improving shelf life, improving tack / adhesion, and / or reducing the diffusion of materials that migrate therefrom, if any, such as reducing oil bleed diffusion. The present disclosure also relates to methods of using phosphonic acids to improve the performance of composite materials useful for thermal and / or electromagnetic interference (EMI) management. The composite material can include a thermal management and / or electromagnetic interference (EMI) mitigation material, such as a thermal interface material (TIM), an EMI absorber material, a thermally conductive EMI absorber material, an electrically conductive material, combinations thereof, and the like.SELECTED DRAWING: None
Owner:LAIRD TECHNOLOGIES INC

Method for reducing timeliness of hot-dip galvanized plate for U-shaped shell of washing machine

The invention discloses a method for reducing timeliness of a hot-dip galvanized sheet for a U-shaped shell of a washing machine, which is characterized by comprising the following steps: (1) smelting-continuous casting production process flow; (2) a hot rolling production process flow: casting blank heating, rough rolling, finish rolling and coiling; the coiling temperature is 670 to 710 DEG C; (3) pickling and cold rolling process flow; and (4) continuous annealing process flow. According to the method for reducing the timeliness of the hot-dip galvanized sheet for the U-shaped shell of the washing machine, the coiling temperature in the hot rolling process is regulated and controlled, the solid solution content of interstitial atoms is controlled, and therefore the ageing resistance of aluminum killed steel DX51D + Z, DX52D + Z and other hot-dip galvanized sheets is improved.
Owner:BAOTOU IRON & STEEL (GROUP) CO LTD

Low-anisotropy 220MPa-grade hot-dip aluminum-silicon phosphorus-containing high-strength steel for automobile and preparation method thereof

According to the low-anisotropy 220MPa-grade hot-dip aluminum-silicon phosphorus-containing high-strength steel for the automobile and the preparation method of the low-anisotropy 220MPa-grade hot-dip aluminum-silicon phosphorus-containing high-strength steel, the hot-dip aluminum-silicon high-strength steel for the automobile covering part is prepared through low-cost component design and ingenious combination of heat treatment and the hot-dip aluminum-silicon technology, the yield strength of the high-strength steel ranges from 220MPa to 260MPa, the tensile strength is larger than or equal to 360MPa, the percentage elongation after fracture is larger than or equal to 41%, and the elongation after fracture is larger than or equal to 41%. The plastic strain ratio r value is larger than or equal to 2.1, the anisotropic special-shaped index delta r value is smaller than or equal to 0.3, and the work hardening index n value is larger than or equal to 0.21; and within 6 months after the steel plate is manufactured, the increment of the yield strength is smaller than or equal to 8 MPa, the reduction of the percentage elongation after fracture is smaller than or equal to 1%, the structure comprises ferrite, a TiN precipitated phase, a VC precipitated phase and a Cu-rich phase, and the steel for the high-strength automobile covering part has excellent forming performance, high surface quality, no timeliness and a small anisotropy value.
Owner:ANGANG STEEL CO LTD

Phosphonic Acid For Enhancing Performance Of Thermal Interface Materials

The present disclosure relates to the use of phosphonic acid to enhance performance of thermal interface materials (broadly, composites), e.g., by improving rheological properties, improving aging properties, improving shelf life, improving tack / adhesion, and / or reducing the spreading of material(s), if any, migrating therefrom (e.g., reduced oil bleed spreading, etc.). The present disclosure also relates to methods of using phosphonic acids for enhancing performance of composites useful for management of heat and / or electromagnetic interference (EMI). The composite may comprise thermal management and / or electromagnetic interference (EMI) mitigation materials, such as thermal interface materials (TIMs), EMI absorber materials, thermally-conductive EMI absorber materials, electrically-conductive materials, combinations thereof, etc.
Owner:LAIRD TECHNOLOGIES INC