43results about How to "Good thermosetting" patented technology

The invention relates to the field of additive technologies and can be used for manufacturing components and structures made of composite materials. A device comprises an extruder having inlet channels, a heater, a camera, a temperature sensor, a nozzle for material discharge, mechanisms for feeding material and composite fibre in the form of thread, a thread-cutting mechanism, a table and a three-dimensional displacement mechanism. A method comprises manufacturing composite fibre, feeding same and thermoplastic material into the extruder, and heating up the extruder, wherein the thermoplasticmaterial is combined with the composite fibre. The composite material is then extruded onto the surface of the table, where the composite fibre cools and hardens, and the melt of thermoplastic material solidifies, bonding the composite fibres to one another and forming the article. In addition, in the process of forming the article, the composite fibre is cut and the extruder moves on to the nextsection of the trajectory thereof.

The invention provides ecological decorative paper and a production method thereof. The ecological decorative paper is prepared from the following raw materials in parts by weight: 15-20 parts of softwood pulp fiber, 15-20 parts of hardwood pulp fiber, 10-20 parts of polyester fiber, and 40-50 parts of modified thermoset resin. The ecological decorative paper is produced through steps of size degradation, beating, molding, drying, gluing, drying in a baking oven, sheeting and packaging by a fourdrinier machine. The product possesses the following advantages: 1, the product is good in eveness, stable in quality and stable in thickness, does not contain formaldehyde, melamine and other harmful substances, and is healthy and friendly to environment; 2, the product possesses good thermosetting performance, and therefore the product and a single plate and a decoration layer can be directly subjected to hot pressing for preparing a decoration sheet material, operations of sanding, glue preparation, glue blending, glue coating and the like of a single plate and a surface plate are saved, and production time, raw material cost and labor cost are saved. The product is a truly environment-friendly health product. The method of using the ecological paper for replacing the surface layer of a lumber core board is initially created in household sheet material industry, and the excellent performances of the product surly will bring revolutionary change for household sheet material industry.

The invention relates to a variable-stiffness self-repairing material containing a metal-mercapto coordination bond, which is composed of a mercapto-terminated small molecule compound, a mercapto-terminated liquid polysulfide resin, a crosslinking agent, a zinc salt, other metal salts, an alkaline regulator and a solvent composition. The material structure contains a large number of metal-mercapto coordination bonds. The good thermodynamic stability of the coordination bonds ensures that the material has greater rigidity and mechanical strength; Repair performance; the high temperature sensitivity of the coordination bond ensures the variable stiffness of the material under a wide temperature range; the insensitivity of the coordination bond to water ensures the environmental stability of the material; at the same time, the material has a transparent It has the characteristics of high performance and adjustable refractive index. The variable-stiffness self-healing material containing metal-mercapto coordination bonds of the present invention can be applied to the fields of sealants, self-healing coatings, temperature-sensitive variable-stiffness self-repairing engineering materials, additive manufacturing, composite materials, optically transparent adhesives and the like.

The invention discloses an amorphous nanocrystalline composite magnetic powder core and a preparation method thereof, and the amorphous nanocrystalline composite magnetic powder core is prepared fromFe-based amorphous nanocrystalline magnetic powder and nano-grade glass powder / micron-grade glass powder through spark plasma sintering. The amorphous nanocrystalline composite magnetic powder core has high permeability, high density, low magnetic loss and low coercivity, so the amorphous nanocrystalline composite magnetic powder core has excellent soft magnetic and mechanical properties, and canbe widely used for manufacturing high-power switching power supplies, high-power inductors and high-efficiency energy-saving motors and other equipment.