723 results about "Phenylene" patented technology

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.

The invention relates to the technical field of aromatic polyamide high polymers, in particular to a modified poly-p-phenylene terephthamide fiber with high elongation at break and a preparation method of the modified poly-p-phenylene terephthamide fiber. According to the invention, a small amount of 3, 4-difluorobenzene is introduced According to the preparation method, the third monomer containing 4, 4 '-diaminodiphenyl ether and the fourth monomer containing a diaminophenoxy functional group are added, and the molar ratio of the third monomer and the fourth monomer in the total amount of the diamine monomer is controlled, so that the rigid molecular chain structure of the conventional para-aramid fiber is destroyed to a certain extent, the breaking strength of the fiber is maintained, the elongation at break of the polymer fiber is enhanced, and the service life of the polymer fiber is prolonged. The prepared modified poly-p-phenylene terephthamide can still adopt a dry-jet wet spinning process, the cost of a new production line of a factory is saved, the fiber with stable elongation at break index is obtained by optimizing process conditions and parameters, and the elongation at break of the prepared fiber is 3.6% or above.

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.

Disclosed is an organic EL element material represented by the following general formula (1):wherein, in the general formula (1), any one of X1 to X3 is a nitrogen atom, and others are methine groups; L1 is a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, or substituted or unsubstituted anthrylene group; L2 is single bond, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, or a substituted or unsubstituted anthrylene group, in which when these groups are substituted, the substituent is an alkyl group or an alkoxy group; A is a phenyl group or a pyridyl group; and n is 0 or 1. An organic EL element excellent in luminance efficiency and durability life is provided.

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.

The invention relates to the technical field of Joule heating, in particular to a high-thermal-conductivity composite film and a preparation method and application thereof. The preparation method provided by the invention comprises the following steps: blending hydroxyl modified poly (p-phenylene benzobisoxazole) fibers and polyether-ether-ketone fibers to obtain PBO-OH / PEEK fiber cloth; the preparation method comprises the following steps: mixing a soluble polyether-ether-ketone solution, NH2-MWCNTs and GnPs, and carrying out ultrasonic treatment to obtain a spraying solution; and spraying the spraying liquid on the upper surface and the lower surface of the PBO-OH / PEEK fiber cloth in an electrostatic spraying manner, and performing hot pressing to obtain the high-thermal-conductivity composite film. The high-thermal-conductivity composite film prepared by the preparation method has excellent mechanical properties, and also has excellent in-plane thermal conductivity, electrical conductivity and electromagnetic shielding effect.

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.

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.

A method of manufacturing a gC3N4-grafte hybrid covalent organic framework is provided. The method includes synthesizing 1,3,5-triformyl phloroglucinol (Tp), p-phenylene diamine (ppd), and gC3N4 to form Tp-ppd-gC3N4-x covalent organic frameworks (COFs), where x represents a weight % (wt %) of gC3N4 with respect to a total weight of aldehyde and amine.

The purpose of the present invention to provide: a novel phosphorus compound; a method for synthesizing the compound; a flame retardant containing the compound; and a resin composition containing the compound and a resin component. The purpose of the present invention is to additionally provide: a prepreg using the resin composition; a resin-equipped metal foil; a thermosetting resin film; a metal-clad laminated board; a printed wiring board; and an adhesive. The present invention relates to a phosphorus compound represented by chemical formula (I), a synthesis method, and a use thereof. (In the formula, the R1's are the same or different and represent a hydrogen atom, a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group; R2 represents a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group, and when there are a plurality of R2's, the R2's may be the same or different; Y1 represents a phenylene group optionally substituted with a C1 to C10 alkyl group, a naphthylene group, or a group indicated by formula (A); and the n's are the same or different and represent an integer of 0-3.) (In the formula, the R3's are the same or different and represent a hydrogen atom, a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group; and Y2 represents a single bond, a C1 to C15 alkylene group optionally substituted with a phenyl group, a C5 to C15 cycloalkylene group, a C5 to C15 cycloalkylidene group optionally substituted with a C1 to c10 alkyl group, a phenylene group, an adamantane-1,3-ylene group, an adamantane-2-ylidene group, an oxygen atom, a sulfur atom, a sulfinyl group, a sulfonyl group, or a fluorene-9-ylidene group.)

The invention relates to a phenyleneboronic hybrid silicon resin aerogel and a preparation method thereof, and belongs to the technical field of aerogel preparation, and the specific scheme comprises the following steps: step 1, adding alkoxy silane, organic phenylboronic acid, an organic solvent and deionized water into a reaction container, heating for hydrolysis-condensation, and after the reaction is finished, carrying out oil-water separation to obtain a phenyleneboronic hybrid silicon resin aerogel; carrying out reduced pressure distillation on the oily substance to remove small molecular organic matters and deionized water to obtain a phenylene boron-containing silicon resin prepolymer; step 2, dissolving the phenyleneborosilicate resin prepolymer in an organic solvent, adding a catalyst, pouring the mixture into a mold, and performing cross-linking curing to obtain phenyleneborosilicate resin gel; and step 3, heating and drying the phenyleneborosilicate resin gel at normal pressure, and after drying is finished, heating and aging to obtain the phenyleneborosilicate resin aerogel. The phenylene boron hybrid silicon resin aerogel disclosed by the invention can be used as a novel light, ablation-resistant, anti-oxidation and high-performance ablation heat-proof and heat-insulating composite material, and new application of the hybrid silicon resin in the fields of aerospace and the like is expanded.

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.

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.

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.

The utility model relates to a system for preparing high-purity inositol using corn slurry, the system comprising a precipitation tank, a first plate-frame filter, a fitin dissolving tank, an enzymolysis tank, a neutralization tank, a second plate-frame filter, a nanofiltration system, a first evaporator, a decolorizing tank, an ion exchange column, a second evaporator, a first crystallization kettle, a first centrifuge, a crude product dissolving tank, a second crystallization kettle, a second centrifuge, a hot air drying tank and a cold air fluidized bed connected sequentially by pipelines, a feed inlet of corn supernatant and a feed inlet of lime milk suspension are respectively arranged on the precipitation tank, a feed inlet of dilute hydrochloric acid solution is arranged on the fitin dissolving tank, and the material coming out of the discharge end of the cold air fluidized bed is the required inositol crystal product. The utility model can quickly obtain enzymolysis raw material liquid phytic acid, and compared with calcium phytate suspension, the homogeneity of the liquid phytic acid enzymolysis process system is improved, the enzymolysis conversion rate is increased to more than 98%, and the purity of the inositol crystal product is increased to more than 99.5%.

The invention belongs to the technical field of crystalline materials, and particularly relates to a cadmium complex crystal material as well as a preparation method and fluorescent recognition application thereof. According to the invention, Cd < 2 + > is selected as a central metal ion, a flexible polycarboxylic acid ligand 4, 4 '-((5-carboxyl-1, 3-phenylene) bis (oxy)) dibenzoic acid is selected, and two cadmium complexes Cd-1 and Cd-2 with novel structures are synthesized. The prepared Cd-1 and Cd-2 can rapidly detect Fe < 3 + > and Tb < 3 + >, and can be used as a novel fluorescent recognition sensor. The material can be used in the fields of environmental protection, quality inspection and the like, and has important significance in protecting the environment, improving food quality safety and the like.

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).

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.

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.

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.

The invention belongs to the technical field of crystalline materials, and particularly relates to a chromium phosphonate metal organic framework material as well as a solvent-free preparation method and application thereof. The chemical formula is [Cr (H2BPD) 1.5]. The preparation method comprises the following steps: mixing an organic ligand p-phenylene diphosphonic acid and chromium chloride hexahydrate, grinding, carrying out a heating reaction, after the reaction is completed, spontaneously cooling to room temperature, repeatedly washing with ethanol until a supernatant is in a colorless and transparent state, and carrying out vacuum drying to obtain the light green chromium phosphonate metal organic framework material. The chromium phosphonate metal organic framework material can be applied to proton conduction.

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.

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.

Provided are: a carbon dioxide absorbent containing an amine compound (A) represented by general formula (1); a method for recovering carbon dioxide using the carbon dioxide absorbent; and an apparatus for separating and recovering carbon dioxide.　Formula (1): H2N-(CH2)m-X-(CH2)n-NHR1 (In formula (1), X is a phenylene group or a cyclohexylene group, and R1 is a 2-12 C hydrocarbon group which may have a hydroxy group, and m and n are each independently a number from 1 to 6.)

Disclosed herein is a capped poly(phenylene ether) having an activated ester end group and a structure as further defined herein. The capped poly(phenylene ether) can be particularly useful in curable compositions, thermoset compositions, and articles formed therefrom.

Provided are a polyamideimide resin, a polyamideimide resin film, and a method for manufacturing the same, the polyamideimide resin being characterized in that the polyamideimide resin is obtained by polymerizing a first monomer, a second monomer, and a third monomer, the first monomer being tetracarboxylic dianhydride, the second monomer being tetracarboxylic dianhydride, and the third monomer being tetracarboxylic dianhydride. The second monomer is diamine represented by the following chemical formula (i), and the third monomer is a dicarboxylic acid derivative, NH2-R-NH2. Chemical formula (i) wherein R is phenylene having more than one substituted or unsubstituted benzene ring structure, and when R is phenylene having more than two benzene ring structures, R is a phenyl group having more than one substituted or unsubstituted benzene ring structure, and when R is a phenyl group having more than one substituted or unsubstituted benzene ring structure, R is a phenyl group having more than one substituted or unsubstituted benzene ring structure, R is a phenyl group having more than one substituted or unsubstituted benzene ring structure. The more than two benzene ring structures are connected by a single bond,-O-,-S-,-C (= O)-or-CH (OH)-, and the substitution means that phenylene is substituted by-CCl3,-CBr3 or-CF3.

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.

The present invention provides a novel tetrazole compound, a method for synthesizing the same, and a coupling agent. A tetrazole compound according to the present invention is represented by chemical formula (I). In chemical formula (I), R1 and R2 are the same or different and represent a hydrogen atom or a group represented by -(CH2)m-Si(OR)3−p(OH)p, where R represents a methyl group or an ethyl group, m represents an integer of 1-18, and p represents an integer of 0-3. X represents a phenylene group, -NH-, or -(CH2)n-, and n represents an integer of 0-12. However, R1 and R2 are not simultaneously hydrogen atoms.

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.)

The invention discloses a two-dimensional imidazolyl material for CO2 reduction and a preparation method thereof, the molecular formula of the single crystal structure of the two-dimensional imidazolyl material is [Fe (pbi) (SCN) 2], and pbi is 1, 1-(1, 4-phenylene) bis (1H-imidazole). The two-dimensional imidazolyl material disclosed by the invention is of a two-dimensional network structure which is formed by continuously extending a ligand consisting of imidazolyl and a benzene ring and metal iron atoms under the coordination action. A photocatalytic reaction system constructed by using the two-dimensional imidazolyl material disclosed by the invention as a catalyst, RuPS as a photosensitizer and BIH as a sacrificial agent can reduce carbon dioxide into carbon monoxide under irradiation of a 400nm xenon lamp, has relatively high CO yield and selectivity, and has wide application potential in the field of photocatalysis.