11results about How to "Good toughening effect" patented technology

This invention discloses a strongly bonded surface glaze layer for stain-resistant ceramic tiles, its preparation method, and its application, relating to the field of ceramic tile manufacturing technology. The surface glaze layer comprises a microcrystalline glaze composite layer and a stain-resistant surface layer. The microcrystalline glaze composite layer contains a core-shell structured aluminum zirconium phosphate, and the stain-resistant surface layer contains a core-shell structured calcium-activated silica gel. The two layers are sintered to form Ca-Zr-P-O chemical bonds. This achieves strong interfacial bonding and, through the construction of a dense nanocomposite structure for synergistic stain resistance, results in excellent and long-lasting stain-resistant performance, significantly improving the stain resistance and service life of the ceramic tile. It solves the problem of stain-resistant layers easily detaching and failing during long-term use in existing ceramic tile technologies.

The application provides a polymethyl methacrylate product and a preparation method thereof. The preparation method of the polymethyl methacrylate product comprises the following steps: S1. mixing a resin matrix, a toughening agent, an antioxidant and a light stabilizer to obtain a mixture; the resin matrix comprises a polymethyl methacrylate resin; the toughening agent comprises a core-shell structure toughening agent and a polyester-based toughening agent; the core-shell structure toughening agent comprises a core and a shell layer; the core comprises polybutyl acrylate, and the shell layer comprises polymethyl methacrylate; S2. melt blending, extruding and granulating the mixture, and drying, injection molding, cooling and annealing. In the application, the core-shell structure toughening agent and the polyester-based toughening agent can synergistically improve the toughening effect.

This invention provides a three-dimensional network nanowire soft interface on the surface of alumina fibers and its preparation method, belonging to the technical field of alumina fiber-reinforced ceramic composite materials. In this invention, alumina fibers are pretreated, fixed with a clamp, and placed in a chemical vapor deposition (CVD) furnace. The furnace is evacuated and heated. After heating, the temperature is maintained while trichloromethylsilane, hydrogen, and argon are introduced for CVD. After deposition, the mixture is cooled to room temperature to obtain alumina fibers with a three-dimensional network nanowire soft interface. The presence of nanowires significantly increases the interfacial surface area between the fiber and the matrix. When an external load is applied to an oxide ceramic matrix composite material prepared from this fiber, the shear stress on the nanowire surface, widely distributed at the fiber-matrix interface, can increase the energy dissipated during composite material failure, thereby further improving the toughening effect.

The application discloses a preparation method of high-strength and high-toughness polypropylene composite material, and 20-30 parts of toughening resin, 5-10 parts of crosslinking agent, 3-5 parts of dicumyl peroxide and 100-120 parts of polypropylene 20000 are weighed, and then are added into a single-screw extruder to be extruded and granulated under the conditions that the rotating speed is 95-105 rpm and the temperature is 190-200 DEG C, so that the high-strength and high-toughness polypropylene composite material is prepared. The crosslinking agent and the polypropylene form a net structure which is crosslinked with each other by free radical reaction initiated by the dicumyl peroxide in the mixing process. When the high-strength and high-toughness polypropylene composite material is subjected to external force, the toughening resin and the crosslinking agent become stress concentration points, and deformation occurs under the actions of stretching, compression and the like, a large number of crazes and shear bands are generated to consume energy, so that the toughening effect is improved.

The invention discloses a high-elasticity PVC film and a preparation method thereof, and relates to the technical field of PVC films. The invention relates to a high-elasticity PVC (polyvinyl chloride) film, which comprises PVC resin powder, a calcium-zinc stabilizer, a bio-based branched plasticizer, POE (polyolefin elastomer) coated calcium carbonate, CPE (chlorinated polyethylene) and other processing aids, the epoxidized soybean oil-based polyol is specifically prepared from epoxidized soybean oil and methanol through a ring-opening reaction. Through the technical scheme of the invention, the PVC film which not only has excellent flexibility and high elasticity, but also has good mechanical strength and tear resistance can be prepared.

The application relates to the technical field of plastic packaging film, and particularly discloses a recyclable PE wrapping film and a preparation method thereof. The recyclable PE wrapping film comprises the following raw materials: PE recyclable material, ethylene-propylene-diene rubber, active phenolic resin, metal halide, metallocene POE, HDPE resin, tackifying masterbatch, and the balance of LLDPE resin; the preparation method is as follows: the LLDPE resin is mixed with the PE recyclable material and the ethylene-propylene-diene rubber, hot melting, the active phenolic resin and the metal halide are added from the side feeding, hot melting, and a melt is prepared; the melt is cast and cooled to prepare a cast sheet, the cast sheet is drawn and stretched, and then subjected to corona treatment, curling and slitting. The recyclable PE wrapping film does not add opening agents, slip agents and anti-fog agents, ensures that the product is easy to recycle, the recyclable material has high purity, a high content of PE recyclable material is added, and the recyclable PE wrapping film still has relatively high tensile strength, puncture resistance and transparency.

The present application relates to the field of preparation of bio-based multi-level pore carbon material and environmental governance, in particular to a kind of bio-based three-dimensional multi-level pore carbon material and its preparation method and application.The preparation method of bio-based three-dimensional multi-level pore carbon material of the present application includes the following steps: biomass raw material and phenol, composite acid catalyst are mixed and reacted 1, to obtain bio-based liquefied material;Bio-based liquefied material is mixed with composite base catalyst and polyformaldehyde, and then reacted 2, to obtain bio-based liquefied resin;Bio-based liquefied resin is mixed with surfactant, foaming agent, metal-based DES and curing agent, and then foamed, to obtain carbonization precursor;The carbonization precursor is subjected to carbonization treatment, and then ultrasonic water washing is carried out, to obtain bio-based three-dimensional multi-level pore carbon material.The bio-based three-dimensional multi-level pore carbon material prepared by the method of the present application has uniform structure, contains micron-nanometer multi-level pore structure, and has high adsorption performance.

The invention discloses a polyethylene short fiber reinforced concrete outdoor hollow decorative plate and a preparation method thereof, and relates to the field of fabricated buildings. According to the decorative plate, Portland cement is used as a base material and matched with raw materials such as polymer-coated pre-water-absorbing ceramsite and polyethylene short fibers; during preparation, the acrylate polymer emulsion modified ceramsite is prepared through a core-shell step-by-step pre-emulsification technology, then the polyethylene short fibers are added into a concrete system in batches to be evenly stirred, and the polyethylene short fiber reinforced concrete outdoor hollow decorative plate is prepared through cast-in-place forming and curing. The problems that a traditional outer wall decorating plate is prone to cracking, large in dead weight, poor in heat preservation and insufficient in durability are solved, the compression resistance, crack resistance and bending strength of the decorating plate are improved, the water absorption rate is reduced, the light weight and heat preservation and heat insulation effects are considered, and the requirement for green building development is met.

The application discloses a kind of polypropylene resin with excellent low-temperature toughness and a preparation method thereof.The toughness loss of the polypropylene resin at-20 DEG C compared with that at 20 DEG C is less than 10%, and the toughness loss at-30 DEG C compared with that at 20 DEG C is less than 20%.In the process of preparing the polypropylene resin, at least a step of ethylene-propylene copolymerization by periodically changing the concentration ratio of ethylene monomer and propylene monomer in the reaction environment is included.The polypropylene resin obtained by the application has excellent impact performance and can maintain high toughness in low-temperature use environment, and has potential as a thermoplastic elastomer.

The application discloses a kind of high transparent photochromic polyester film and preparation method thereof, the film is composed of photochromic polyester layer, the photochromic polyester layer contains in-situ polymerized, surface-modified inorganic photochromic nanoparticles, the haze of the film is ≤3%, color change occurs within 5 seconds under sunlight irradiation.The high transparent photochromic polyester film provided by the application has high transparency, fast color change, excellent stability and green environmental protection, etc., can meet the stringent requirements of intelligent window film, high-end anti-counterfeiting, optical devices and other fields, and has extremely high application value and market prospect.

This invention relates to the field of cable technology and discloses a 220KV submarine cable resistant to deep-water pressure and its manufacturing method. The submarine cable is composed of a conductor, an insulation layer, a water-blocking tape, a sheath layer, a waterproof polypropylene tape inner lining layer, an armor layer, and a waterproof polypropylene tape outer sheath layer. This invention involves mixing polypropylene, polypropylene-modified silicone oil, and a lubricant, followed by extrusion, casting, stretching and orientation, and slitting. The resulting waterproof polypropylene tape exhibits good tensile strength, while significantly improving elongation at break and flexibility. The polypropylene-modified silicone oil contains strongly hydrophobic perfluoroalkyl chains and polysiloxane structures, which improves the water contact angle and surface hydrophobicity of the polypropylene tape, enhancing its waterproof performance. As the inner lining and outer sheath layer of the cable, it is beneficial for improving the cable's waterproof and water-resistant performance, and has good practical applications in submarine cables and other fields.