Hyperbranched polymer-SiO2 modified epoxy resin insulating material and preparation method thereof

A technology of hyperbranched polymer and epoxy resin, which is applied in the direction of epoxy resin coating, epoxy resin glue, adhesive type, etc., and can solve the problem of poor mechanical properties and insufficient electrical insulation of modified epoxy resin insulating materials To avoid agglomeration and agglomeration, improve hydrophobic performance, and enhance insulation performance
CN110776806AInactive Publication Date: 2020-02-11王利玲

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
王利玲
Publication Date
2020-02-11
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to the technical field of epoxy resin adhesives, and discloses a hyperbranched polymer-SiO2 modified epoxy resin insulating material and a preparation method thereof. The hyperbranched polymer-SiO2 modified epoxy resin insulating material is prepared from the following formula materials: hyperbranched polymer, nanosilicon dioxide, a silane coupling agent, a catalyst, dodecylsuccinic anhydride and epoxy resin. A three-dimensional net-like spherical structure of the hyperbranched polymer has a high degree of molecular branching, so that nano-SiO2 is uniformly dispersed on the huge specific surface of the hyperbranched polymer, nano-SiO2 agglomeration is reduced, nano-SiO2 reduces the effective charge and charge accumulation in a coating interface area, the diffusion rate of a carrier is reduced, the formation of conductive paths is suppressed, the breakdown characteristics of epoxy resin coatings are improved, the hyperbranched polymer has excellent elastic expansion structure and good structural stability, the crosslinking density of the epoxy resin is increased, the mobility of a molecular segment of the epoxy resin is suppressed, and the impact cross sectioncaused by the stress expansion of the resin is reduced.
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Description

technical field

[0001] The invention relates to the technical field of epoxy resin adhesives, in particular to a hyperbranched polymer-SiO 2 Modified epoxy resin insulating material and its preparation method. Background technique

[0002] Adhesive bonding refers to the technology of connecting the surfaces of homogeneous or heterogeneous objects with adhesives. It has the characteristics of continuous stress distribution and light weight. Adhesive bonding is suitable for the connection of materials of different materials, different thicknesses and complex components. There are many classification methods of adhesives. Generally, adhesives are composed of bonding substances, curing agents, toughening agents, diluents, modifiers, etc., mainly polyacrylates, polyamides and other thermoplastic adhesives, urea-formaldehyde resins, epoxy resins, etc. Thermosetting adhesives such as resins, synthetic rubber adhesives such as neoprene rubber and polyurethane rubber, rubber resin a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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