128 results about "Silsesquioxane" patented technology

This invention discloses a PETG co-extruded composite sheet and its preparation method. The method involves adding extruder and APET masterbatch to an extruder, then layering and combining the extruder melt and APET masterbatch melt to form a composite melt with an upper and lower layer of extruder and a middle layer of APET masterbatch. This is then shaped by roller pressing to obtain the PETG co-extruded composite sheet. During the blending process of modified polyester and modified filler, the epoxy group structure in the modified polyester molecule can react with the secondary amine in the modified filler, resulting in mild cross-linking and increasing the strength of the polyester material. The modified polyester molecular chain contains polysiloxane segments, and also has polysiloxane segments branched onto its side links. When impacted, the flexible polysiloxane segments absorb and dissipate a large amount of energy through violent movement, rotation, and entanglement. Furthermore, the nano-reinforcing points formed by the cage-like silsesquioxane structure within the molecule contribute to the excellent scratch resistance of the prepared composite sheet.

This application belongs to the technical field of grouting materials for tunnel engineering, specifically relating to a grouting material suitable for tunnel rock strata reinforcement and its preparation method. It includes component A and component B; by weight, component A comprises: 75-85 parts of a first base material, 10-20 parts of a coupling agent, and 2-5 parts of a catalyst; component B comprises: 70-80 parts of a second base material and 15-25 parts of a modifying accelerator; wherein, the first base material is a water glass solution, and the physicochemical properties of the water glass solution meet the following conditions: modulus > 2.5, Baume degree < 40°Bé; the second base material is composed of isocyanate compounds and glycidyl etheroxypropyl cage-like polysilsesquioxane in a weight ratio of 100:(11-23); the modifying accelerator includes polyvinylpyrrolidone and dicarboxylic acid alkyl ester compounds. The two base materials synergistically cure at low temperature to form a highly cross-linked organic-inorganic composite network, thereby significantly improving the compressive strength of the solidified body.

The application belongs to the technical field of sand consolidation agent preparation, and particularly relates to a sand consolidation agent and a preparation method thereof. The sand consolidation agent is composed of component A and component B. The component A is composed of the following raw materials: a diphenyl phenolic epoxy resin, hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene, modified nano calcium zirconate, cage octakis(aminophenyl)silsesquioxane, n-butyl glycidyl ether, KH-550 silane coupling agent, polyether amine, fumed silica and defoaming agent. The component B is composed of the following raw materials: polyborosilazane and 2-ethyl-4-methyl imidazole. The cage octakis(aminophenyl)silsesquioxane in the raw material of the sand consolidation agent strengthens the network structure stability through chemical bonding, the hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene realizes thermal stabilization through chemical bonding and physical dispersion, and the modified nano calcium zirconate provides physical support. The three components synergistically improve the heat resistance of the system.

This application relates to a process for preparing a filled wax-free adsorption pad, which is obtained by the following method: Step 1) PE foam material is foamed to form a porous structure of several foam skins; a modified PE board has several slots; Step 2) Adhesive is applied to the surface of the foam skins, and then the adhesive side of the foam skins is attached to the slots of the modified PE board, with the foam skins and slots corresponding one-to-one, and fixed to obtain a filled wax-free adsorption pad; both the PE foam material and the modified PE board contain an acid-resistant blend modifier; the acid-resistant blend modifier is composed of nano-lithium-based inorganic bentonite, polystyrene-poly(heptaisobutyl cage-type polysilsesquioxane alkylpropyl-methacrylate), maleic anhydride graft, and aromatic polyamide hyperbranched polymer. The filled wax-free adsorption pad obtained by the above technical solution ensures basic performance, further improves acid resistance, reduces wear, breakage, swelling, etc., and improves service life.

Provided are: a polyimide resin composition from which a polyimide film excellent in terms of transparency, light resistance and adhesion to a substrate can be obtained; and a polyimide film excellent in terms of transparency, light resistance and adhesion to a substrate.　A polyimide resin composition contains: a polyimide resin (I) including a repeating unit represented by formula (1); at least one compound (S) selected from the group consisting of a silsesquioxane compound (S1) and a phenylalkoxysilane (S2); and an organic solvent, wherein the content of the compound (S) relative to 100 parts by mass of the polyimide resin (I) is 1-45 parts by mass. (X represents a C4-39 tetravalent aliphatic group or aromatic group; Y represents a C4-39 divalent aromatic group; and Y includes at least one selected from the group consisting of a divalent group represented by formula (2) and a divalent group represented by formula (3). Z is a C1-8 aliphatic group, and n is 0-2.)

The present invention relates to a composition for hard coating and a coating film thereof, the composition comprising: a first silsesquioxane oligomer including at least one first reactive functional group; and a second silsesquioxane oligomer including at least one second reactive functional group, wherein the first reactive functional group is a substituted or unsubstituted epoxy group, and the second reactive functional group is selected from a substituted or unsubstituted amine group, a substituted or unsubstituted thiol group, a substituted or unsubstituted epoxy group, a substituted or unsubstituted (meth)acrylate group, and a substituted or unsubstituted alkenyl group of 2 to 20 carbon atoms.

The present application relates to the technical field of surface modification materials, and particularly relates to a perfluoroalkyl silane coupling agent for material surface modification and a preparation method thereof. The coupling agent comprises synergistically modified perfluoroalkyl triethoxysilane, an organic small-molecule functional regulator, an acid catalyst, a surfactant, a stabilizer, ethanol and deionized water. The synergistically modified perfluoroalkyl triethoxysilane is prepared by synergistic modification of perfluoroalkyl triethoxysilane, monohydroxyl column [5] arene, octakis(glycidyl ether propyl) silsesquioxane, N-(2-aminoethyl)-3-aminopropyl trimethoxysilane and 2,6-pyridine dimethyl formaldehyde through host-guest inclusion, epoxy-amine ring-opening reaction and Schiff base condensation reaction, and the organic small-molecule functional regulator is 9,10-dihydroxyanthracene. The preparation method is simple and suitable for surface modification of various substrates such as glass, metal, ceramic and polymer materials.

To provide an anti-reflective film having superior scratch resistance compared to conventional films, and an active energy ray curable composition for obtaining the anti-reflective film that exhibits excellent temporal stability. [Solution] An anti-reflective film having a laminated structure in which a light-transmitting substrate, a high refractive index layer (α), and a low refractive index layer (β) are arranged in this order, wherein the high refractive index layer (α) is a cured product of an active energy ray curable composition, and the active energy ray curable composition comprises a compound (A) having three or more (meth)acryloyl groups, a compound (B) having a silsesquioxane skeleton, metal oxide particles (C) with a refractive index of 1.70 to 2.72, and a photopolymerization initiator (D). (However, compound (A) excludes compound (B).)

The application discloses a high-temperature-resistant polyvinyl chloride adhesive tape and a preparation method thereof, and belongs to the technical field of polymer materials and adhesive products. The high-temperature-resistant polyvinyl chloride adhesive tape comprises the following raw materials in parts by weight: synergistically modified polyvinyl chloride, diphenyl phosphine oxide, chlorinated polyethylene, diisononyl phthalate, antimony trioxide, calcium stearate, zinc stearate, an antioxidant and a leveling agent; the synergistically modified polyvinyl chloride is obtained by introducing catechol structures on the surface of polyvinyl chloride through dopamine self-polymerization deposition, forming a dynamic borate ester structure with 3-aminobenzoic acid, and constructing a Si-O-Si network structure through hydrolytic condensation reaction of octa(3-aminopropyl)silsesquioxane and N-(beta-aminoethyl)-gamma-aminopropyl triethoxysilane. The dopamine-borate ester-silicone synergistic network structure is constructed, and the diphenyl phosphine oxide is introduced for function regulation, so that the heat resistance, mechanical properties and dimensional stability of the polyvinyl chloride adhesive tape are significantly improved.

This invention discloses a wear-resistant leather fabric and its preparation method. The method involves sequentially subjecting animal raw hides to degreasing, washing, a first low-temperature plasma treatment, retanning, a second low-temperature plasma treatment, fatliquoring, dyeing, and color fixing. The retanning agent used in the retanning process is a mixture of ricinoleic acid-modified polyurethane, polyhedral oligomeric silsesquioxane, fibrous soybean protein, and zirconium oxide composite graphene oxide. The leather fabric obtained by this invention exhibits excellent wear resistance, extends the service life of the leather fabric, maintains good softness, and provides superior comfort.

This invention discloses a high- and low-temperature resistant and anti-aging building wire and its preparation method, relating to the field of wire and cable technology. The high- and low-temperature resistant and anti-aging building wire of this invention comprises: a wire core; and a modified polyvinyl chloride (PVC) insulation layer covering the wire core; wherein the modified PVC insulation layer comprises at least the following raw materials in parts by weight: 80-100 parts of PVC; 10-20 parts of hydrogenated nitrile rubber; 5-15 parts of PVC-g-polyacrylic acid graft copolymer; 10-25 parts of vinyltriethoxysilane coupling agent modified boron nitride / magnesium hydroxide composite flame retardant; 3-8 parts of linoleic acid modified polyhedral oligomeric silsesquioxane; 4-8 parts of heat stabilizer; 3-6 parts of plasticizer; 1.5-3.5 parts of lubricant; 0.5-2 parts of antioxidant; and 0.3-1.5 parts of ultraviolet absorber. The building wire prepared by this invention has wide temperature range adaptability, aging resistance, and flame-retardant and smoke-suppressing properties.

This invention belongs to the field of micro / nano fabrication and optical testing technology, specifically relating to a high-resolution test card for dielectric materials in the EUV and soft X-ray bands. The test card includes a substrate and a Siemens star test pattern formed thereon. The test card uses silsesquioxane (HSQ) as the structural material and is fabricated using electron beam lithography. The structural height can reach 500 nm with a minimum linewidth of 10 nm. This invention utilizes the dual absorption and strong phase modulation capabilities of HSQ in the EUV / soft X-ray bands, making it suitable for both absorption contrast and phase contrast imaging modes in system resolution calibration and performance evaluation. This test card offers advantages such as standardized patterns, high resolution, adjustable contrast, and good fabrication consistency, providing crucial metrological support for the performance testing of high-end EUV / soft X-ray optical imaging and lithography systems.

The application discloses a preparation method of a fluorine-free modified MXene-based super-hydrophobic photothermal coating. The method first prepares multilayer MXene powder through an in-situ etching method, then disperses the multilayer MXene powder and modifies the surface of the multilayer MXene powder by using fluorine-free cage-shaped polysilsesquioxane to obtain fluorine-free cage-shaped polysilsesquioxane MXene super-hydrophobic photothermal material, and finally prepares the fluorine-free modified MXene-based super-hydrophobic photothermal coating through spraying. The fluorine-free modified MXene-based super-hydrophobic photothermal coating prepared by the method has excellent super-hydrophobic performance and exhibits photothermal conversion performance that is higher than that of an original MXene-based coating and a fluorine-modified MXene-based super-hydrophobic photothermal coating, and the preparation method is simple and avoids pollution caused by fluorine-containing modifiers. Furthermore, the fluorine-free modified MXene-based super-hydrophobic photothermal coating can not only prevent ice by using a super-hydrophobic surface but also actively remove ice by using photothermal conversion characteristics, and has excellent ice prevention and ice removal performance.

The application relates to the technical field of cables, and discloses a high-strength aluminum alloy medium-voltage power cable. The high-strength aluminum alloy medium-voltage power cable comprises, from inside to outside, an aluminum alloy conductor and an insulation layer; the insulation layer is a cross-linked polyethylene nano-composite insulation material, and the raw material components of the cross-linked polyethylene nano-composite insulation material comprise, in terms of weight fractions, 100 parts of a base resin, 3-8 parts of core-shell-star compounded inorganic nano-filler, 0.5-1 part of an antioxidant and 1.5-2.5 parts of a cross-linking agent; the core-shell-star compounded inorganic nano-filler is silica-coated nano-aluminum nitride grafted with polyhedral oligomeric silsesquioxane, and is denoted as AlN@SiO2-POSS. In the application, the inorganic nano-composite filler is used to improve the thermal conductivity of the cable insulation layer, and meanwhile, the dielectric strength, mechanical tensile property and heat aging resistance of the cable are improved.

This invention relates to the field of resin technology, specifically to an epoxy resin composition for copper-clad laminates and its preparation method. The epoxy resin composition comprises, by weight, 500-700 parts of bisphenol A type epoxy resin, 50-70 parts of phenyl glycidyl ether, 30-50 parts of dodecyl glycidyl ether, 20-40 parts of dicyandiamide, 3-7 parts of 2-ethyl-4-methylimidazole, 800-1000 parts of modified spherical silica filler, and a solvent. The key lies in the partial end-capping of the silica surface, followed by the sequential construction of a bimodal siloxane brush layer, a reactive layer with epoxy functional groups, and a fluorinated brush layer. Then, an epoxy ring-opening anchoring aminopropyl isobutyl polysilsesquioxane cage and an aminopropyl-terminated polydimethylsiloxane are used, followed by final end-capping. This composition effectively solves the problems of poor filler dispersibility and high interfacial polarity under high filler conditions, significantly reduces dielectric loss, and improves electrical performance stability and lamination density under humid and hot environments.

The application relates to a deburring method for a micro-aperture cross-hole of a semiconductor equipment precision component. The method comprises the following steps: deburring liquid: uniformly mixing cage polysilsesquioxane-octakis-epoxy nano silicon dioxide dispersion, phenylboronic acid, octakis octyl cage polysilsesquioxane, an activated dispersant and a first solvent to obtain a first mixed liquid; dissolving an organic acid in a second solvent to obtain a second mixed liquid, adding the second mixed liquid into the first mixed liquid, adjusting the PH value to 3-5 to obtain an environment-friendly deburring liquid; capillary removal: removing the burrs inside the hole of the semiconductor equipment precision component by using the heated deburring liquid, and then performing flushing to obtain the precision component with the removed burrs and the recycled deburring liquid. The above scheme realizes the triple effects of "grinding-dissolving-protection", improves the burr removal effect of the micro-aperture cross-hole of the semiconductor equipment precision component, and can maintain good removal effect for long-term repeated use and heating.

The present invention provides a curable composition which can suppress thermal deterioration of a tetraazaporphyrin compound, and realize a lens excellent in visual confirmation, anti-glare effect, and contrast enhancement effect. The curable composition of the present disclosure contains: a silsesquioxane having an epoxy cyclohexyl group; and a tetraazaporphyrin compound having an absorption peak in a wavelength region of 570 to 605 nm, the content of the tetraazaporphyrin compound being 1000 to 10000 parts by weight per million parts by weight of the silsesquioxane.

The present application relates to the technical field of chromatographic packing, in particular to a kind of phosphine ligand modified silica gel chromatographic packing and preparation method thereof, the present application first designs and synthesizes the porous silsesquioxane microspheres containing diphenyl phosphine ligand as functional unit, and the modified bridged silane containing phenyl ether structure as alkali-resistant reinforcing unit, then by sol-gel method, the above unit is copolymerized with tetraethyl orthosilicate, constructs organic-inorganic hybrid silica gel skeleton, finally, the pore structure of packing is optimized by two-step hole expansion process;The method makes phosphine ligand firmly embedded in the interior of silica gel skeleton in the form of covalent bond, and the modified bridged silane containing phenyl ether structure provides hydrophobic protection and space stabilization effect as part of the skeleton, so as to realize the long-term stability of packing in strong alkaline environment and high capacity, high selectivity adsorption of metal ions.

The invention relates to the technical field of fluororubber processing, in particular to a fluororubber sealing element resistant to electrolyte corrosion and a preparation method of the fluororubber sealing element. The fluororubber is prepared from the following raw materials in parts by weight: 100 parts of fluororubber, 10-15 parts of polytetrafluoroethylene micro powder, 4-8 parts of an acid acceptor, 5-7 parts of magnesium-aluminum hydrotalcite, 3-5 parts of polyhedral oligomeric silsesquioxane, 35-40 parts of inorganic filler, 30-35 parts of carbon black, 8-10 parts of an active agent, 2-5 parts of a peroxide vulcanizing agent and 2-5 parts of a cross-linking agent. The fluororubber is composed of low-fluorine-content binary fluororubber and a polyvinylidene fluoride-hexafluoropropylene copolymer, through the synergistic effect of all the components, the volume swelling rate of the sealing element is controlled to be 8% or below under the condition that the sealing element is soaked in an electrolyte at the temperature of 85 DEG C, and the compression set is reduced to be within 15%; and after accelerated aging for 1000 hours, excellent elastic recovery capability and interface sealing pressure are still maintained. The sealing element has the wide temperature range adaptability of-20 DEG C to 200 DEG C and good mechanical strength, and the problem of size instability caused by swelling and softening of traditional fluororubber is effectively solved.

This invention discloses a flame-retardant high-shield cable material and its preparation method, relating to the field of cable material technology. The cable material, by weight, comprises a matrix resin, silicone oil-modified aminated multi-walled carbon nanotubes, a composite flame-retardant system, a composite shielding system, a coupling agent, a lubricant, an antioxidant, a flame-retardant and smoke-suppressing synergist, and octavinyl cage-like polysilsesquioxane, among other raw materials. The matrix resin is a compound of ethylene-octene copolymer, POE-g-MAH, and polyborosilazane. The composite flame-retardant system and the composite shielding system synergistically enhance each other's effects. The preparation method involves mixing the raw materials, then melt-blending, granulating, and drying them using a twin-screw extruder to obtain the finished product. This cable material possesses both high flame-retardant and high shielding properties, solving the problem of single cable materials being unable to simultaneously achieve both flame-retardant and shielding performance. It is suitable for various cable applications with high requirements for shielding and flame retardancy, and has strong practicality.

The present invention relates to electrophotographic members and electrophotographic image forming apparatuses. An electrophotographic member includes a base layer and a surface layer on the base layer. The surface layer includes a binder resin and electronically conductive particles. The binder resin includes a polymer having an organosiloxane polymer moiety. The organosiloxane polymer moiety has a silsesquioxane structure. An infrared absorption spectrum obtained by measuring a surface of the surface layer using infrared spectroscopy satisfies a specific formula.

The application discloses a high-voltage large-current zinc oxide varistor disc and a preparation method and application thereof, and belongs to the technical field of overvoltage protection devices. 3 The zinc oxide varistor disc is composed of the following raw materials in percentage by weight: 95.0-97.5% of ZnO, 0.5-1.2% of Bi2O 3 0.8-1.5% of Sb2O 3 0.2-0.5% of Co2O 2 0.3-0.6% of MnO 3 0.1-0.3% of Cr2O 3 0.01-0.05% of Al2O 3 0.1-0.4% of SiO2 and 0.05-0.2% of a rare earth dopant RE2O The non-working surface of the zinc oxide varistor disc is sprayed with modified epoxy resin insulating paint, and the modified epoxy resin insulating paint is prepared by mixing tetrahydroxy octaphenyl double-layer cage-type silsesquioxane solution, epoxy resin, fillers and a curing agent. The zinc oxide varistor disc has a residual voltage ratio of less than or equal to 1.8, a voltage nonlinearity coefficient alpha of more than or equal to 50, and a performance attenuation rate of less than or equal to 5% after 1000 hours of aging at 150 DEG C under a 250kA 8 / 20 mu s impulse current, is excellent in electrical performance and weather resistance, and can meet the overvoltage protection requirements of extra-high-voltage and large-capacity power systems.

The present application relates to the technical field of fiber preparation, in particular to a spectrum self-adaptive radiation refrigeration fiber and a preparation method and application thereof, and the preparation raw materials thereof include radiation refrigeration master batch 20-50 parts and fiber-forming polymer master batch 50-80 parts by weight. The preparation raw materials of the radiation refrigeration master batch include radiation refrigeration composite powder 5-20 parts, near-infrared control particles 5-10 parts and fiber-forming polymer 75-80 parts by weight; the preparation raw materials of the radiation refrigeration composite powder include rare earth aluminates, inorganic powder and fatty acid modifier. The near-infrared control particles take modified tungsten-doped vanadium dioxide as a core layer and take PMMA polymer containing methyl acryloyl oxypropyl cage-shaped poly siesquioxane as a shell layer. By introducing the self-prepared radiation refrigeration master batch, the problem that the existing radiation refrigeration fiber cannot be adjusted in temperature and cannot meet the melt spinning process is effectively solved, and the actual application demand is better met.

The application discloses a kind of high transparent rare earth nanoparticles / cage polysilsesquioxane composite photoresist and its preparation method and application, the photoresist includes the composite matrix consisting of cage polysilsesquioxane, multifunctional acrylate and photoinitiator, and the rare earth nanoparticles modified by bifunctional ligand.The bifunctional ligand anchors nanoparticles by first functional group, and forms chemical bonding with matrix by second functional group, realizes the atomic level uniform dispersion of nanoparticle.The photoresist has very high optical transparency, high-efficiency up-conversion luminescence performance and very high ultraviolet photosensitivity.Its preparation process is simple, without high-temperature expensive equipment, can be adapted to a variety of photo-curing technology realizes the integration precision forming of complex three-dimensional structure luminescence device, has wide application prospect in integrated photonics device field.

This invention provides a high-wear-resistant and anti-reflective coating material for optical devices and its preparation method. The method involves preparing a cage-like polysilsesquioxane hybrid silica composite sol; mixing this sol with resin and other materials to obtain a coating; applying it as a single layer to a substrate; and then subjecting it to UV pre-curing and programmed temperature heat treatment. Utilizing the low surface energy of the cage-like polysilsesquioxane, it spontaneously migrates and accumulates on the coating surface, forming a dense, wear-resistant layer. Simultaneously, the migrating cage-like polysilsesquioxane leaves nanopores in the original silica region, forming a porous structure, thereby reducing the bulk refractive index of the coating and achieving anti-reflection. This invention, through a one-step coating and simple post-processing, simultaneously constructs an integrated gradient structure with a high-hardness, wear-resistant surface and efficient internal anti-reflection within a single coating, suitable for temperature- and process-sensitive optical devices such as resin lenses and displays.

The application discloses a kind of metal ion loaded antibacterial silica gel and its preparation method, belong to organic polymer technical field.The method is prepared by first preparing silver-loaded functional unit integrating perfluoropolyether (PFPE), organic antibacterial agent and nano silver cluster, covalently anchoring in single active site POSS vertex to obtain active antibacterial POSS nano cluster.Finally, it is mixed with silicone oil system using the low surface energy of PFPE to drive the migration of antibacterial components to the surface layer and in-situ vulcanization.The application realizes molecular self-reinforcement using the quasi-inorganic skeleton of POSS nanocage, completely replaces traditional inorganic powder filler, so that the silica gel has high strength and high toughness;Through the synergistic effect and gradient distribution of organic / inorganic dual antibacterial components, the efficiency and long-term effectiveness of antibacterial performance are realized, and the anti-yellowing and stability of the material are significantly enhanced.

The invention discloses a high-performance optical component bonding material based on a UV pressure-sensitive adhesive as well as a preparation method and application of the high-performance optical component bonding material. The bonding material is prepared from the following raw materials in parts by weight through UV photocuring: 50 to 85 parts of acrylate mixed monomers, 10 to 40 parts of polyurethane acrylate oligomer, 0.5 to 8 parts of cage type silsesquioxane functional monomers, 0.5 to 5 parts of photoinitiators and 0.1 to 3 parts of cross-linking agents. Wherein the acrylate mixed monomer comprises a soft monomer, a hard monomer and a functional monomer in a specific proportion; according to the scheme, the POSS functional monomer and the polyurethane acrylate oligomer are introduced into a single UV curing system and cooperate with the acrylate monomer, so that a cured adhesive layer has high light transmittance, high bonding strength, excellent stress buffering capacity and efficient gas / water vapor discharge channels at the same time; the adhesive is particularly suitable for reliable bonding of precise optical assemblies such as curved-surface touch screens and optical lenses in a severe environment, and overcomes the defects of traditional bonding materials in the aspects of heat and humidity resistance, stress resistance and multi-base-material universality.

The present invention provides a hard coat layer-forming composition from which it is possible to form a hard coat layer that exhibits excellent adhesiveness. A hard coat layer-forming composition according to the present invention comprises: at least one selected from the group consisting of hydrolyzable silicon compounds, hydrolysates thereof, and hydrolysis condensates thereof; a silsesquioxane compound having an oxetanyl group; a cationic polymerization initiator; and two or more hydroxybenzophenone compounds having different numbers of hydroxy groups.