6results 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.

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 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.

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.