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578 results about "Phenylene" patented technology

The phenylene group (C₆H₄) is based on a di-substituted benzene ring (arylene). For example, poly(p-phenylene) is a polymer built up from para-phenylene repeating units.

Multi-layer composite structure, preparation method, battery cover and electronic equipment

The invention provides a multi-layer composite structure, a preparation method, a battery cover and electronic equipment, the multi-layer composite structure is formed by a plurality of stacked fiber layers, each fiber layer is formed by dipping a fiber sheet in a pre-polymerized glue solution and then curing the fiber sheet, the fiber sheet in at least one fiber layer adopts poly (p-phenylene benzobisoxazole) fiber, and the fiber sheet in the at least one fiber layer is made of a poly (p-phenylene benzobisoxazole) fiber. The PBO fiber is prepared from the PBO fiber. Therefore, the multi-layer composite structure has higher strength and modulus, energy is absorbed and dispersed when the multi-layer composite structure is impacted, the reliability of the multi-layer composite structure is not influenced when the multi-layer composite structure is impacted on the basis of thinning and weight reduction, and the battery cover formed by the multi-layer composite structure has better anti-puncture performance.
Owner:HONOR DEVICE CO LTD

Core material for vacuum insulation panel, vacuum insulation panel and preparation method and application of vacuum insulation panel

The invention provides a core material for a vacuum insulation panel, the vacuum insulation panel and a preparation method and application of the vacuum insulation panel. The core material for the vacuum insulation panel comprises aramid fibers and a binding material, and the aramid fibers comprise at least one of poly (m-phenylene isophthalamide) fibers, poly (p-phenylene terephthalamide) fibers and heterocyclic aramid fibers; the length of the aramid fiber ranges from 1 mm to 10 mm. The vacuum insulation panel comprises a core material for the vacuum insulation panel and a barrier film material, and the barrier film material wraps the core material for the vacuum insulation panel. In the process of preparing the vacuum insulated panel and the process of cutting and producing the core material for the vacuum insulated panel, dust and fine fibers are not generated, and environmental pollution and health risks are avoided.
Owner:HEFEI HUALING CO LTD +2

Assembled mxene nanomaterial coating by solute-assisted assembly and method of using the same

An article, a method of making the same, and a method of using the same are provided. Such an article includes at least one coated layer, which includes a substrate and a coating disposed on the substrate. The coating includes a layered nanomaterial and a solute embedded and distributed in the layered nanomaterial. The solute comprises at least one salt soluble in a solvent. The substrate comprises a polymer, for example, a high-performance polymer such as polyether ether ketone and poly(para-phenylene terephthalamide). The article is used for thermal management applications, for example, as protective garment.
Owner:DREXEL UNIV +1

Dopamine sensor working electrode based on MOF material and preparation method thereof

The invention discloses a dopamine sensor working electrode based on an MOF material and a preparation method thereof, and belongs to the technical field of electrochemical sensing. The working electrode is composed of a pure MOF Cu-HHTP modified glassy carbon electrode and a Nafion film covering the surface of the glassy carbon electrode, and the preparation method of the working electrode comprises the following steps: synthesizing Cu-HHTP (Cu < 2 + > and a hexahydroxy triphenyl ligand are coordinated to form a two-dimensional honeycomb layer) through a solvothermal method, dispensing Cu-HHTP dispersion liquid on the surface of the glassy carbon electrode, and then covering the glassy carbon electrode with the Nafion film to form the combined electrode. The dopamine sensor prepared by the preparation method disclosed by the invention has high sensitivity, high anti-interference capability and long-term stability. The preparation process is simple, complex conductive additives are not needed, and the method is suitable for rapid and accurate detection of dopamine in complex biological samples.
Owner:HENAN UNIV OF SCI & TECH

Insulating material with corrosion resistance and production process thereof

PendingCN120484443AElastomerPolymer science
The invention discloses an insulating material with corrosion resistance and a production process thereof, and relates to the technical field of insulating materials. The invention discloses an insulating material with corrosion resistance. The invention discloses a flame-retardant coating which is prepared from the following raw materials in parts by weight: 60 to 80 parts of bisphenol A epoxy resin, 20 to 30 parts of polyether-ether-ketone, 10 to 15 parts of nano aluminum nitride, 5 to 10 parts of boron fiber, 4 to 8 parts of molybdenum disulfide, 3 to 6 parts of poly (p-phenylene benzobisoxazole), 2 to 5 parts of vinyl trimethoxy silane, 20 to 30 parts of dimethyl sulfoxide, 8 to 12 parts of melamine cyanurate, 6 to 10 parts of magnesium aluminum hydroxide, 1 to 3 parts of Chimassorb 944 and 10 to 20 parts of modified polyvinyl alcohol. The coating is prepared from the following components in parts by weight: 20-30 parts of modified cellulose, 8-15 parts of modified cellulose, 3-7 parts of nano-zirconia, 5-10 parts of polysiloxane elastomer and 7-12 parts of fluorine-containing acrylate copolymer. The raw materials of the insulating material have a synergistic effect, and the prepared insulating material not only has conventional electrical insulation, but also has excellent heat resistance, corrosion resistance and the like, integrates hardness, flexibility, flame retardance and self-repairing performance, greatly expands the application range of the insulating material, and provides powerful support for industry development.
Owner:NANTONG TELWA HIGH INSULATION MATERIAL CO LTD

High-light-transmittance label protection film and preparation method thereof

The invention relates to the technical field of protective films, in particular to a high-light-transmittance label protective film and a preparation method thereof.A multi-layer protective film formed by compounding a release film layer, an adhesive layer, a PET film and a protective layer is constructed; composite vinyl ester resin constructed by taking epoxy resin and acrylic acid as raw materials is subjected to toughening modification, and then a linear reactive diluent is compounded to construct a high-toughness protective layer which is resistant to high temperature and aging and can be photo-cured; long-chain alkane modified nano silicon dioxide is introduced into the protective coating, nano silicon dioxide is aminated by 3-aminopropyltriethoxysilane, and then 17-carbon monoisocyanate prepared by taking acetone, stearic acid, triphenylphosphine, sodium azide and N-chlorosuccinimide as raw materials is grafted to form the long-chain alkane modified nano silicon dioxide. Vinyl butadiene styrene rubber, composite vinyl ester resin, tackifying resin, a softening agent and a photoinitiator are mixed to prepare the adhesive layer.
Owner:NINGBO LAILIBAO NEW MATERIALS CO LTD

Preparation method of high-conductivity single-walled carbon nanotube fiber

The invention belongs to the technical field of preparation of single-walled carbon nanotube fibers, and particularly relates to a preparation method of high-conductivity single-walled carbon nanotube fibers, which comprises the following steps: preparing a single-walled carbon nanotube crude product by a chemical vapor deposition method, pickling and purifying, and oxidizing and purifying at high temperature to obtain a single-walled carbon nanotube; the preparation method comprises the following steps: adding a single-walled carbon nanotube into a poly [2, 5-dihydroxy-1, 4-phenylene pyridine diimidazole] aqueous solution, dispersing, and collecting supernatant liquid to obtain a single-walled carbon nanotube purified liquid; adding chlorosulfonic acid into the single-walled carbon nanotube purified solution in an argon atmosphere to obtain a single-walled carbon nanotube spinning solution; and injecting the single-walled carbon nanotube spinning solution into a coagulating bath in an argon atmosphere to prepare the single-walled carbon nanotube fiber. According to the invention, the poly [2, 5-dihydroxy-1, 4-phenylenediimidazole] is adopted to selectively disperse the metallic single-walled carbon nanotubes, and the gold single-walled carbon nanotubes in the single-walled carbon nanotube fibers are high in purity, so that the conductivity can be improved.
Owner:SHANDONG CARBON XUN NEW MATERIALS CO LTD

High-temperature-resistant, heat-insulating and flame-retardant poly-p-phenylene terephthamide nanofiber composite aerogel as well as preparation method and application thereof

The invention discloses a high-temperature-resistant, heat-insulating and flame-retardant poly (p-phenylene terephthamide) nanofiber composite aerogel as well as a preparation method and application thereof. The composite aerogel is prepared by slowly releasing proton to induce gel through a two-step sol-gel method. Firstly, carboxyl on a PAA molecular chain is introduced to interact with deprotonated amido in an ANF molecular chain, so that a part of a hydrogen bond system is recovered, ANF pre-gel is achieved, then Ti2CCl2 is dispersed into the ANF pre-gel system, the gelation process is further completed through protonic acid, and the ANF / Ti2CCl2 / ANF composite material is obtained. The composite aerogel is obtained through an improved directional freeze-drying technology and a solvent replacement method. The prepared composite aerogel combines the high thermal stability of Ti2CCl2 and the excellent mechanical property of ANF, has excellent flame retardance, high temperature resistance and heat shielding effectiveness, has wide application prospects in the fields of electronic heat dissipation, building energy efficiency, solar energy utilization and the like, and can meet the ever-increasing requirements for efficient thermal regulation and thermal protection.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Cucurbituril-based supramolecular organic framework material as well as preparation method and application thereof

The invention relates to the technical field of nuclear waste treatment, in particular to a cucurbituril-based supramolecular organic framework material as well as a preparation method and application thereof. A construction unit of the supramolecular organic framework material is constructed by taking cucurbit [8] uril (CB8) as a subject and terephthalyl viologen ligand 1, 1 ''-(1, 4-phenylene) bis ([4, 4 '-bipyridyl]-1-onium) salt (PBV. 2X) as an object through the bonding effect of the subject and the object; in the molecular structure of the supramolecular organic framework material, the construction units are staggered and stacked in parallel in the space, and NO3 <-> is located at the gap of the adjacent CB8. The supramolecular organic framework material disclosed by the invention has high structural stability and cationic framework characteristics, and a rigid framework and a pyridine conjugated system of CB8 endow the material with excellent chemical / irradiation stability, so that the material shows ultrahigh removal rate on ReO4 <-> / TcO4 <-> in extreme environments (strong acid, strong alkali and high irradiation).
Owner:INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI

Fluorinated COF enhanced PVDF-HFP composite gel polymer electrolyte and preparation method and application thereof

The invention discloses a fluorinated COF enhanced PVDF-HFP composite gel polymer electrolyte. The fluorinated COF enhanced PVDF-HFP composite gel polymer electrolyte is prepared from the following raw materials: polyvinylidene fluoride-co-hexafluoropropylene, a fluorinated covalent organic framework containing an ether oxygen bond and a carbon-carbon unsaturated double bond, bis (trifluoromethylsulfonyl) imide anion ionic liquid and fluorine-containing imide lithium salt, the fluorinated covalent organic framework containing the ether-oxygen bond and the carbon-carbon unsaturated double bond is prepared by carrying out condensation reaction on a perfluorophenylene-containing module and the ether-oxygen bond-containing aromatic module. According to the electrolyte, PVDF-HFP is used as a polymer matrix, bis (trifluoromethylsulfonyl) imidogen ionic liquid is used as a functional phase and a plasticizer, imide lithium salt is used as a lithium ion source, fluorinated COF containing ether oxygen bonds and olefinic bonds is introduced, and the electrolyte has high ionic conductivity, high lithium ion transference number, excellent mechanical property and interface stability; the method is especially suitable for a high-safety lithium metal battery system.
Owner:SHANGHAI JIAOTONG UNIV

Preparation method of modified master batch degradable material and application of modified master batch degradable material in packaging meal box

The invention relates to the technical field of high polymer materials, and discloses a preparation method of a modified master batch degradable material and application of the modified master batch degradable material in a packaging lunch box, and the modified master batch degradable material comprises the following components by mass: 75.0-93.8 parts of poly (butylene succinate); 5.0 to 20.0 parts of aliphatic series-aromatic copolyester; 1.0 to 4.0 parts of 1, 1 '-methylenebis-4, 1-phenylene-bismaleimide, and 1.0 to 4.0 parts of 1, 1'-methylenebis-4, 1-phenylene-bismaleimide; 0.5 to 2.0 parts of talcum powder; the method comprises the following steps: mixing dried poly (butylene succinate), aliphatic-aromatic copolyester, bismaleimide and talcum powder, performing reactive extrusion and melt mixing through a twin-screw extruder, and then cooling, pelletizing and drying the extrudate. Through specific components and a reactive extrusion process, a dynamic cross-linked network is formed by utilizing a Diels-Alder reaction, and the modified master batch degradable material of which the comprehensive mechanical property and the heat resistance are remarkably improved is prepared.
Owner:SHENZHEN SAIZHUO PLASTIC IND CO LTD

UV light-cured adhesive, preparation method thereof and application of UV light-cured adhesive in electronic field

The invention discloses a UV photocuring adhesive, a preparation method thereof and an application of the UV photocuring adhesive in the electronic field, and relates to the field of adhesives. The preparation method comprises the following steps: when the UV photocuring adhesive is prepared, carrying out a reaction on dihydroxyl modified 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, p-phenylene diisocyanate, polyethylene glycol and 2-ethyl-4-methylimidazole, so as to obtain imidazole-terminated isocyanate, and carrying out a reaction on the imidazole-terminated isocyanate and the 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, so as to obtain the UV photocuring adhesive. The modified lignin, butanediamine and N, N '-methylene bisacrylamide are subjected to a reaction, and a double-bond reactant is prepared; the preparation method comprises the following steps: reacting epoxy-terminated siloxane with octamethylcyclotetrasiloxane, tetramethyltetravinyl cyclotetrasiloxane and tetramethylammonium hydroxide to obtain modified siloxane, and finally, uniformly mixing imidazole-terminated isocyanate, a double-bond reactant, modified polysiloxane and benzoin butyl ether to obtain the polyurethane adhesive. The UV light-cured adhesive prepared by the invention has good adhesive property, anti-aging property and flame retardant property.
Owner:ZHEJIANG DAXIA OPTICAL TECHNOLOGY CO LTD

Poly (p-phenylene benzobisoxazole) nanofiber composite hydrogel photo-thermal evaporator as well as preparation method and application of poly (p-phenylene benzobisoxazole) nanofiber composite hydrogel photo-thermal evaporator

The invention discloses a poly (p-phenylene benzobisoxazole) nanofiber composite hydrogel photo-thermal evaporator and a preparation method and application thereof.The photo-thermal evaporator is composed of a photo-thermal conversion assembly and a heat insulation supporting assembly, and the photo-thermal conversion assembly is made of PBO nanofiber composite hydrogel; the bottom of the photo-thermal conversion assembly is embedded in the heat insulation supporting assembly. The interface water evaporation-oriented PBO nanofiber composite hydrogel is prepared by a simple sol-gel method, and the preparation process is simple. The PBO nanofibers and the polyvinyl alcohol are tightly combined to form an ultra-strong structure evaporator, the wettability of the material is improved due to the addition of the PVA, and the abundant three-dimensional network and porous structure provide guarantee for water transmission. The photo-thermal evaporator can serve as a main assembly of a solar interface water evaporation device, can obtain energy from the environment, has excellent interface water evaporation performance and meanwhile has good mechanical performance and tolerance.
Owner:HARBIN INST OF TECH +1

Sulfur-containing all-solid-state polymer electrolyte membrane, preparation method and lithium metal battery

The invention discloses a sulfur-containing all-solid-state polymer electrolyte membrane, a preparation method and a lithium metal battery, and belongs to the technical field of polymer electrolytes.The method comprises the steps that 1, 4-phenylene-diacrylate and dimethyl tetrasulfide are evenly mixed and cooled to the room temperature after a reverse vulcanization reaction, and a polymer solid is obtained; the preparation method comprises the following steps: dissolving a polymer solid in dimethyl sulfoxide, adding bis (trifluoromethanesulfonyl) lithium imide, uniformly stirring and mixing, casting in a PTFE (Polytetrafluoroethylene) mold, uniformly spreading, and carrying out vacuum drying to obtain the sulfur-containing all-solid-state polymer electrolyte membrane. The ion transmission function of a liquid electrolyte is replaced by the solid ion conduction property, and the physical isolation function of a diaphragm is replaced by a compact and firm physical structure, so that the Li < + > diffusion energy barrier is reduced, the electrochemical window is widened, the interface impedance is reduced, and the interface compatibility between the positive and negative electrode materials and the solid electrolyte is improved; the lithium metal battery assembled by the electrolyte has excellent electrochemical performance and cycle performance.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

A carbon fiber reinforced acid and alkali resistant PPS material and its preparation method

ActiveCN119570081BGlass fiberCarbon fibers
The present invention provides a kind of carbon fiber reinforced acid and alkali resistant PPS material, the carbon fiber reinforced acid and alkali resistant PPS material includes the following components by mass fraction: 40 80 parts of PPS, 5 10 parts of modified carbon fibers, 1 5 parts of modified glass fibers, 1 5 parts of coupling agents, 1 5 parts of antioxidants, 1 10 parts of lubricants. The modified carbon fibers of the present invention have phenylene sulfide structure and star-shaped structure, have good compatibility with other components, can form more regular, tight three-dimensional network structure with other components, strengthen the stability of product, realize the lifting of the multiple performances such as mechanical property, acid and alkali resistance. Meanwhile, the present invention, by introducing phenylene sulfide structure and benzyl alcohol structure in modified glass fibers, effectively improves interfacial compatibility and bonding strength, enhances the compatibility with other components, makes the combination between components tighter, thus further enhancing the dispersibility and stability of system, improves the performance of PPS material.
Owner:GUANGDONG YONGXINHUA NEW MATERIAL CO LTD

Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element

The present invention provides: a liquid crystal alignment film which has good liquid crystal alignment properties, while having excellent pretilt angle developability; a liquid crystal display element which is provided with this liquid crystal alignment film; and a liquid crystal aligning agent which enables the achievement of this liquid crystal alignment film. The present invention provides a liquid crystal aligning agent which contains: as a component (A), a compound that has a thermally crosslinkable group and a photo-alignment group represented by formula (pa-1), wherein the thermally crosslinkable group is capable of forming a covalent bond by being reacted with a carboxy group; and as a component (B), a polyamic acid and a solvent. (In formula (pa-1), A represents a phenylene group or the like; R1 represents —COO— or —OCO—; R2 represents a cyclohexane-1,4-diyl group; R3 represents a cyclohexane-1,4-diyl group; R4 represents a linear or branched alkyl group having 1 to 40 carbon atoms, and some or all of the hydrogen atoms in this alkyl group may be substituted by fluorine atoms; D represents an oxygen atom, a sulfur atom or —NRd-; a represents an integer of 0 to 3; and * denotes a bonding position.)
Owner:NISSAN CHEM CORP

Battery diaphragm, preparation method thereof and secondary battery

The invention discloses a battery diaphragm, a preparation method thereof and a secondary battery, and belongs to the technical field of batteries. The battery diaphragm comprises a base membrane and a heat-resistant layer stacked on the surface of at least one side of the base membrane, the heat-resistant fibers in the heat-resistant layer are selected from polyimide fibers, polyethylene glycol terephthalate fibers, polyamide-imide fibers, polyether-ether-ketone fibers, cellulose nanofibers, poly-p-phenylene terephthamide fibers, poly-m-phenylene isophthamide fibers, polyphenylene sulfide fibers and polyacrylonitrile fibers, and the heat-resistant fibers in the heat-resistant layer are selected from polyimide fibers, polyethylene glycol terephthalate fibers, polyamide-imide fibers, polyether-ether-ketone fibers, cellulose nanofibers, poly-p-phenylene terephthamide fibers, poly-m-phenylene isophthamide fibers, polyphenylene sulfide fibers and polyacrylonitrile fibers. The fiber is at least one of polyvinyl alcohol fiber and poly (p-phenylene benzobisoxazole) fiber; the thickness H1 of the heat-resistant layer and the thickness H2 of the base film satisfy 0.02 < = H2 / H1 < = 10; the porosity (X) of the base film and the porosity (Y) of the heat-resistant layer satisfy 20% < = X + Y < = 90% and 20% < = X < = 60%. The battery diaphragm can be baked at the temperature of 100 DEG C or above, and has relatively high puncture strength.
Owner:EVE POWER CO LTD

Epoxy curing agent and preparation method thereof, and preparation method of visbreaking uncovering protective film

The invention relates to an epoxy hardener and a preparation method thereof and a preparation method of a visbreaking uncovering protective film, and the preparation method of the epoxy hardener comprises the following steps: adding 2, 2 '-(1, 3-phenylene)-dioxazoline and a phenolic hydroxyl group or carboxyl group-containing bifunctional monomer into a first solvent, stirring at normal temperature to obtain a first solution, heating to a first temperature, and stirring at normal temperature to obtain a second solution; the first temperature is 155 DEG C to 165 DEG C, and refluxing for 3.5 hours to 4.5 hours; adding a terminated monomer containing carboxyl or phenolic hydroxyl into a reaction system of the first solution, and continuing to carry out reflux reaction for 2.5-3.5 hours at the first temperature; and after the reaction is finished, purifying and drying to obtain the epoxy curing agent. The epoxy curing agent disclosed by the invention has compatibility with low-polarity glue and has a relatively high curing degree in a high-temperature environment; the viscosity-reducing uncovering protective film has the advantages that the viscosity is reduced at high temperature, and the uncovering design efficiency of different types of PCBs is improved.
Owner:ZHUHAI E-SUN MATERIALS TECH CO LTD

Thermoplastic composition, method of making the same, and article comprising the same

A thermoplastic composition includes specific amounts of a poly (phenylene ether), an impact modifier (including a hydrogenated block copolymer of an alkenyl arene and a conjugated diene), an organophosphate flame retardant, a flame retardant synergist (including phosphazene), and optionally, tricalcium phosphate. The thermoplastic composition can be used to make various articles, particularly suitable for thin wall applications.
Owner:SHPP GLOBAL TECH BV

Improvements in the extrusion of polymeric materials

An extrusion product, such as a film, pipe, or cable / wire sheath, includes a first layer and a second layer. The first layer includes a polymeric material (A) having repeating units of the formula: -0-Ph-0-Ph-CO-Ph I and repeating units of the formula: -0-Ph-Ph-0-Ph-CO-Ph II, where Ph represents a phenylene moiety. The second layer may be a polyaryletherketone (PAEK), such as polyetheretherketone (PEEK). The first layer is intended to reduce the formation of deposits on the die of an extrusion device during extrusion of the product. A method for producing a product including the first layer and the second layer, as well as the use of the polymeric material (A) to reduce the formation of deposits on the die of an extrusion device during extrusion of a second polymeric material, are also described.
Owner:VICTREX MFG LTD

Resin composition and products thereof

Disclosed is a resin composition, including 100 parts by weight of maleimide resin and 0.3 parts by weight to 10.0 parts by weight of organophosphine compound having a structure shown in Formula (1), wherein —R— includes a substituted or unsubstituted phenylene group, biphenylene group, or naphthylene group. Also disclosed are a use of the resin composition in preparing a product, and at least a portion of the product made from the resin composition. The product includes a prepreg, a resin film, a laminate, a printed circuit board, or a cured insulator.
Owner:ELITE ELECTRONIC MATERIAL(ZHONGSHAN)CO LTD

Organic electrochemical transistor based on spirobifluorene polymer and preparation method and application thereof

The invention belongs to the technical field of biosensing of organic electrochemical transistors, and particularly relates to an organic electrochemical transistor based on a spirobifluorene polymer as well as a preparation method and application of the organic electrochemical transistor. An active layer of the organic electrochemical transistor is composed of poly [benzo [2, 1, 3] thiadiazole-4, 7-diyl-[5-[3, 6-bis (octyloxy)-9, 9 '-spirobis [9H-fluorene]-2-yl]-1, 3-phenylene]], an ionic gel layer is prepared by mixing PVDF-HFP, EMIM TFSI and Li TFSI, and a gate electrode is modified with MnO2 nanoparticles and poly [benzo [2, 1, 3] thiadiazole-4, 7-diyl-[5-[3, 6-bis (octyloxy)-9, 9'-spirobis [9H-fluorene]-2-yl]-1, 3-phenylene]-1, 3] thiadiazole-4, 7-diyl-[5 and 2, 3-phenylene]]. The organic electrochemical transistor can be used for detection of hydrogen peroxide, is high in detection sensitivity, good in selectivity and wide in application range, and provides a new solution for detection of hydrogen peroxide.
Owner:SHANGHAI UNIV OF ENG SCI

Two-dimensional copper nanosheet / graphene / aramid fiber composite film material and preparation method and application thereof

The invention discloses a two-dimensional copper nanosheet / graphene / aramid fiber composite film material and a preparation method and application thereof, and the method comprises the following steps: (1) adding copper nanosheets and graphene into a mixed solution of poly-p-phenylene terephthamide, potassium hydroxide and dimethyl sulfoxide, and uniformly dispersing to obtain a mixed solution; forming a copper nanosheet / graphene / aramid fiber composite solution; and (2) filtering and drying the copper nanosheet / graphene / aramid fiber composite solution to obtain the two-dimensional copper nanosheet / graphene / aramid fiber composite film material. The preparation method is simple and easy to implement, the cost can be effectively controlled, and the prepared two-dimensional copper nanosheet / graphene / aramid fiber composite film material has efficient electromagnetic shielding performance.
Owner:HEFEI UNIV OF TECH

Perovskite solar cell, preparation method thereof and photovoltaic module

The invention relates to the technical field of solar cells, in particular to a perovskite solar cell and a preparation method thereof, and a photovoltaic module wherein the perovskite solar cell comprises a substrate structure, and a hole transport layer, a perovskite absorption layer and an electron transport layer which are sequentially stacked on one side of the substrate structure from near to far; the hole transport layer comprises a first material and a second material, and the first material is a phosphonic acid compound containing carbazolyl; and the second material comprises at least one of (4-(pyrene-1-yl) phenyl) phosphonic acid, (4-(6-fluoro-9H-thieno [2, 3,: 4, 5] thieno [3, 2-b] indole-9-yl) butyl) phosphonic acid, (4-(5H-benzo [4, 5] thieno [3, 2-c] indole-9-yl) butyl) phosphonic acid and ((9H-carbazole-3, 6-diyl) bis (4, 1-phenylene)) bisphosphonic acid. According to the technical scheme, the contact uniformity between the hole transport layer and the substrate structure and between the hole transport layer and the perovskite absorption layer in the perovskite solar cell is improved, and the overall electrochemical performance of the perovskite solar cell is effectively improved.
Owner:JINKO SOLAR (HAINING) CO LTS

Modification method of poly (p-phenylene benzobisoxazole) fiber

The invention relates to the technical field of preparation of high-performance fibers, in particular to a modification method of poly (p-phenylene benzobisoxazole) fibers, which comprises the following steps: cutting the poly (p-phenylene benzobisoxazole) fibers, washing, immersing into a mixed solution of ethanol and acetone, washing with ethanol, and drying; adding into a polyvinyl alcohol aqueous solution, adding ferric salt or ferrous salt, uniformly immersing, adding persulfate, heating in a water bath, cooling, and taking out the cross-linked fiber; and putting into deionized water for ultrasonic washing, and drying to obtain the PVA / PBO fiber. The modification method of the poly (p-phenylene benzobisoxazole) fiber, which adopts the steps, is simple and efficient to operate, does not need complex equipment, is suitable for industrial production, and can remarkably improve the surface hydrophilicity on the premise of not damaging the body performance of the PBO fiber.
Owner:ZHEJIANG SCI-TECH UNIV

Resist composition and method for producing resist pattern

To provide a resist composition capable of producing a resist pattern having good line edge roughness.SOLUTION: The resist composition contains a compound represented by formula (I), a resin having an acid-labile group, and an acid generator. [In the formula, R2 represents * -X1-Ph - L1 - OH. Ph represents a substituted or unsubstituted phenylene; R3 represents a halogen atom, a hydroxy group, a haloalkyl group or an alkyl group, and - CH2 - included in the alkyl group may be replaced by - O - or - CO -. m2 is an integer of 1 to 4, m3 is an integer of 0 to 3, provided that 1 ≤ m2 + m3 ≤ 4, and one or more of L1, R1, R2, and R3 have a halogen atom. ] SELECTED DRAWING: None
Owner:SUMITOMO CHEM CO LTD

Paving material composition and structure

A paving material composition containing: an epoxy resin; an epoxy resin curing agent containing a reaction composition (A) containing a reaction product of styrene and a polyamine compound represented by the following formula (1); and an aggregate.wherein X is a phenylene group.
Owner:MITSUBISHI GAS CHEM CO INC

Nitrogen-containing organic compound, perovskite solar cell and preparation method therefor, and electric device

PendingCN122444784AElectrical batteryAcyl group
The application relates to a nitrogen-containing organic compound, a perovskite solar cell and a preparation method thereof and an electric device. The structure of the nitrogen-containing organic compound is shown in the figure; the structure of Ar is shown in the figure; the structure of L1 is shown in the figure; the N atom in formula (III) is connected with L2; L2 is selected from one of C2-C8 alkylene, phenylene, naphthylene and biphenylene; L3-L4 are independently selected from one of a bond, a single bond, O, S and -C(R7)2-; R1 is selected from one of phosphonic acid, carboxylic acid and cyanophosphonic acid; R2 is selected from one of phenyl, substituted phenyl, pyridyl, anilino and benzoyl; R7 is selected from one of hydrogen and C1-C4 alkyl; m, n and p are independently selected from integers of 0-3, and q is selected from integers of 0-4. The anchoring ability, carrier transport ability and defect passivation ability of the nitrogen-containing organic compound are high, and the stability under the action of light and heat is high.
Owner:TRINA SOLAR CO LTD

Tire base rubber composition for off-road tire

The invention relates to the technical field of rubber, in particular to an off-road tire base rubber composition. Based on 100 parts by weight of natural rubber components, the natural rubber composition further comprises the following components in parts by weight: 20-40 parts of carbon black, 5-15 parts of silicon dioxide hydrate, 5-20 parts of nano zinc oxide, 1-3 parts of stearic acid, 1-3 parts of p-phenylenediamine, 1-3 parts of a ketoamine anti-aging agent, 1-3 parts of bis (triethoxysilyl) propyl tetrasulfide, 1-5 parts of carbon nanotubes CNT, 1-4 parts of N, N '-m-phenylene bismaleimide, 0.5-2 parts of sulfur and 0.5-2 parts of a sulfenamide accelerant. The modulus of the rubber material is improved by adding the CNT, so that the consumption of carbon black is reduced, and heat generation is reduced; by adding nano zinc oxide and carbon nanotubes, the heat conductivity of the rubber material is improved; and by adding the N, N '-m-phenylene bismaleimide, the heat resistance of the rubber material is improved.
Owner:TRIANGLE TIRE

Adhesive composition for laminated optical film, and laminated optical film

Provided is an adhesive composition for laminated optical films, which is used for bonding at least two optical films, and which contains a curable component, metal oxide particles, and a compound represented by general formula (1) (wherein X represents a reactive group; (In the formula, Y represents an alkylene group having 1-12 carbon atoms and optionally having a branched chain, or a phenylene group optionally having a substituent, and R1 and R2 each independently represent a hydrogen atom, an aliphatic hydrocarbon group optionally having a substituent, an aryl group, or a heterocyclic group).
Owner:NITTO DENKO CORP