5results about How to "Does not affect insulation properties" patented technology

This invention provides a pH-responsive, high-temperature resistant hybrid intelligent drug-release microcapsule, its preparation method, and its application in electrical insulation materials, relating to the field of electrical insulation materials. The preparation method of the microcapsules of this invention includes the following steps: weighing chitosan and adding it to an aqueous acetic acid solution, stirring to obtain an acidic chitosan solution; adding an isothiazolinone antibacterial agent solution dropwise to the acidic chitosan solution, performing high-speed shearing and ultrasonic dispersion to obtain a nano / submicron emulsion; adding tetraethyl orthosilicate dropwise to the emulsion, stirring, adjusting the pH value to form a hybrid gel shell; dispersing the hybrid gel shell in anhydrous ethanol; adding a silane coupling agent; adding a zinc salt solution, stirring to obtain a microcapsule slurry; adding the microcapsule slurry to a growth solution, and reacting to obtain the target microcapsules. The microcapsules of this invention have a core-shell-skin three-layer structure and, when used in outdoor electrical insulation materials, can achieve intelligent response and long-term inhibition of algae, mold, and microbial attachment and growth.

The application provides a high-performance insulation blanket, which comprises a surface layer, an EVA adhesive layer and a surface layer arranged in sequence, and the surface layer and the EVA adhesive layer are calendered and bonded; the preparation raw materials of the surface layer comprise, in parts by weight, 45-55 parts of ethylene-vinyl acetate copolymer, 10-20 parts of natural rubber, 8-18 parts of PA6 short fiber, 7-10 parts of dopamine modified mica powder, 6-10 parts of MAH-g-EVA, 10-15 parts of flame retardant, 0.2-0.4 parts of antioxidant, 0.8-1.2 parts of lubricant and 2-4 parts of colorant. In the surface layer formula system, the natural rubber, the PA6 short fiber and the dopamine modified mica powder synergistically act, so that the tear resistance and the puncture resistance of the material are greatly improved, and meanwhile, the material has excellent comprehensive performances such as high-temperature resistance, insulation, flame retardation and aging resistance, and is suitable for high-demand insulation protection fields.

The present application relates to the field of electronic equipment maintenance, in particular to a cleaning agent for precise electronic equipment with precise control of evaporation rate and a preparation method thereof, which is a high adaptability cleaning agent with controllable evaporation rate for cleaning precise electronic equipment. The cleaning agent is prepared by mixing two components in a certain proportion, which can accurately adjust the proportion of the two components according to the temperature of the construction environment and the pollution situation of the equipment on site. It can not only effectively remove various polar and non-polar pollutants on the surface of the circuit board, but also realize precise control of the evaporation rate, so as to complete the effective removal of all pollutants in the optimal "contact-dissolution-peeling-evaporation" kinetic window, thereby ensuring the safe and stable operation of the electronic equipment.

The invention discloses an LED packaging colloid presenting a non-luminous color and a preparation method thereof, and belongs to the technical field of semiconductor device packaging. The packaging colloid is composed of a colloid base material and inorganic color paste uniformly dispersed in the colloid base material. The specific preparation method comprises the steps of material preparation, premixing, vacuum stirring and defoaming, dispensing, curing and the like, and inorganic color paste is uniformly mixed and cured in colloid. According to the LED device applying the colloid, the packaging colloid can present a stable preset color when the colloid is not powered on, light emitted after the colloid is powered on penetrates through the colloid, and the light emitting color is in visual coordination with the natural color of the colloid. According to the invention, the integration of the coloring effect and the packaging body is realized, the problems that the external coloring is easy to fall off and discolor and the lighting effect is influenced are solved, and the advantages of firm coloring, strong weather resistance, good process compatibility, environmental protection, reliability and the like are realized.