9results about How to "Good miscibility" patented technology

This invention relates to a modified asphalt and its preparation method, comprising: (1) mixing styrene tar with a pretreatment solvent, allowing it to stand and separate into upper and lower liquid layers; (2) removing the pretreatment solvent from the upper and lower liquid layers respectively to obtain liquid phase Y1 and liquid phase Y2; (3) mixing waste rubber powder with liquid phase Y1 and reacting them, followed by solid-liquid separation to obtain solid phase G1, while simultaneously recovering the separated liquid phase Y3; (4) mixing solid phase G1 with liquid phase Y2 to obtain mixture G2; and (5) adding mixture G2 to the base asphalt to obtain modified asphalt. This invention pretreatment of hazardous waste styrene tar before its use as an additive improves the mixing effect of waste rubber powder and base asphalt, ensures product quality, realizes the resource utilization of styrene tar, and reduces production costs.

The application discloses an antistatic agent, a pressure-sensitive adhesive and application thereof, and belongs to the technical field of protective films. The antistatic agent is prepared by copolymerization of the following monomers in parts by weight: 15-25 parts of a quaternary ammonium salt monomer, 20-30 parts of a first acrylate soft monomer, 3-8 parts of a first acrylate hard monomer and 1-5 parts of a hydroxyl-containing monomer. The antistatic agent is a quaternary ammonium salt acrylate copolymer prepared by copolymerization of the quaternary ammonium salt monomer, the acrylate soft monomer, the acrylate hard monomer and the hydroxyl-containing monomer. The copolymer has both a quaternary ammonium salt conductive group and an acrylate group. The acrylate group can deeply participate in photopolymerization, so that the quaternary ammonium salt group with a conductive function is firmly anchored on the adhesive copolymer molecular chain through a covalent bond, thereby effectively solving the migration and precipitation problems of the antistatic component and realizing long-acting antistatic performance.

The present application relates to the field of organic solar cells, and provides a kind of full asymmetric small molecule donor SMD-Asy and its preparation method and application.The SMD-Asy is connected by Stille coupling from asymmetrically substituted conjugated BDTT core and acceptor unit, and the side chain and main chain structure are all asymmetrically distributed.The preparation of the small molecule donor includes: constructing thiophene and benzo dithiophene diketone BDTT intermediate, introducing long-chain alkoxy side chain under phase transfer catalysis condition, obtaining tin precursor by low-temperature lithiation, and then coupling with halogenated acceptor unit to obtain target molecule.Due to the simultaneous asymmetric design of main chain-side chain, SMD-Asy can regulate the phase separation scale and chain conformation of blended film as the third component in PM6:Y6 system, thereby improving the hole / electron transport balance and mechanical ductility, so that the device can ensure high photovoltaic performance while improving the cracking strain rate.The small molecule donor of the present application is suitable for flexible and stretchable organic solar devices.

The present application relates to the technical field of epoxy resin adhesive, in particular to a long applicable period dual-curing interpenetrating network type one-component epoxy resin adhesive, a preparation method and application, the adhesive is composed of 100 parts of E-51 epoxy resin, 15-35 parts of modified imidazole curing agent, 10-40 parts of active diluent, 0.2-2.0 parts of free radical polymerization initiator by weight fraction; The modified imidazole curing agent has the functions of latency and toughening. The one-component epoxy adhesive of the present application has a long room temperature storage period, which can reach 570-632 hours; only heating is needed to simultaneously realize free radical polymerization curing and thermal curing, forming an interpenetrating network type resin material with high strength and high toughness; there is no strict requirement for raw materials and packaging substrates, overcoming many defects existing in traditional dual-curing epoxy adhesives.

This invention relates to the field of conductive pastes, specifically a low-temperature conductive paste suitable for 3D printing, its preparation method, and its applications. The low-temperature conductive paste comprises silver nanoparticles, a diluent, and a binder; wherein the surface of the silver nanoparticles is coated with ligands; the diluent is an organic alcohol; and the binder is an alcohol-soluble resin. This invention aims to overcome the problems of easy agglomeration of silver nanoparticles and poor dispersibility during long-term storage in existing conductive pastes, leading to easy clogging of the 3D printing nozzle, poor conductivity after sintering, and poor adhesion. The low-temperature conductive paste prepared by this invention not only has good dispersibility and stability but also exhibits good density and conductivity after sintering, enabling high-precision direct-write 3D printing of 10 μm and below.

This invention provides a method for regenerating honeycomb activated carbon, comprising: (1) chemical cleaning: ultrasonic cleaning using a composite cleaning solution containing organic acid and low molecular weight polyethylene glycol; (2) structural repair: immersing the cleaned activated carbon in a repair solution containing carbon precursor and high molecular weight polyethylene glycol; (3) microwave regeneration: microwave heating under non-oxidizing gas protection, followed by cooling to obtain regenerated honeycomb activated carbon. This invention improves cleaning efficiency by using low molecular weight polyethylene glycol to assist the cleaning solution in entering hydrophobic micropores; and selectively retaining high molecular weight polyethylene glycol in microcracks and mesopores through a compounding process with the carbon precursor, resulting in in-situ deposition to fill microcracks and repair structural defects after carbonization. This invention features low regeneration temperature, minimal damage to the honeycomb structure, and a regeneration recovery rate of over 90% for specific surface area and over 88% for axial compressive strength, significantly extending the cycle life of the honeycomb activated carbon.

This invention discloses a super-viscous, high-permeability reducing thin-layer tack coat oil, its preparation method, and its application, relating to the field of road engineering technology. The tack coat oil is made from the following raw materials in parts by weight: 60 parts of oil slurry asphalt composition, 5-8 parts of modifier, 30-35 parts of regenerator, 2-5 parts of surfactant, and 0.6-1.2 parts of compatibilizer. The tack coat oil of this invention not only has high initial and forming strength and permeability, but also improves construction efficiency, eliminating the need for pre-spraying and waiting for emulsion breaking. It also has a regeneration and restoration effect on old pavements, activating the activity of oxidized asphalt and repairing bonding failures. Furthermore, this tack coat oil has strong adaptability to the construction environment, making it less likely for subsequent paving machinery tires to lift it, and eliminating the need for a dedicated paver.

This invention belongs to the field of polyether polyol synthesis technology, specifically relating to a bio-based autocatalytic low-temperature stable polyether polyol, its preparation method, and its applications. The polyether polyol comprises the following raw material components in parts by weight: 30-50 parts of a bio-based composite initiator, 40-60 parts of an epoxide monomer, 2-5 parts of an autocatalytic modifier, 1-3 parts of a low-temperature stabilizer, and 0.5-1 parts of an antioxidant. The bio-based content of the polyether polyol of this invention can reach 45-65%, resulting in a low carbon footprint, low odor level, and low irritation. It exhibits no stratification or turbidity after being placed at -20°C for 72 hours, and demonstrates excellent low-temperature fluidity, requiring no additional low-temperature additives. The accompanying preparation method employs a segmented dropwise one-step autocatalytic polymerization process, with mild reaction conditions, eliminating the need for neutralization and washing steps, resulting in a short process flow, low production cost, and minimal waste emissions. It can be widely used in the preparation of low-temperature defoamers, low-temperature polyurethane insulation foams, and polyurethane materials for automotive interiors.

This invention belongs to the technical field of flame-retardant polyether polyols and their preparation, specifically relating to a method for preparing a highly flame-retardant phosphazene-based polyether polyol. The method involves a nucleophilic substitution reaction between hexachlorocyclotriphosphazene and water in the presence of an acid-binding agent, generating a polyhydroxyl-containing phosphazene derivative as an initiator. Using this initiator as the core, other small-molecule polyols are combined, and propylene oxide undergoes ring-opening polymerization under the action of a catalyst to form a polyether polyol with a "phosphazene ring-polyether chain" structure. Due to the presence of the phosphazene ring in the molecule, this product possesses both excellent flame-retardant properties and good reactivity, and can be directly used to synthesize flame-retardant rigid polyurethane foams, elastomers, and other materials, solving the problem of requiring additional flame retardants in traditional polyether polyols. This invention features highly controllable processes, readily available raw materials, and a product with excellent comprehensive performance, making it highly valuable for industrial applications.