3results about How to "Fix interface issues" patented technology

The invention relates to a method for improving the mechanical property of epoxy resin based on metamaterial skeleton support, the mechanical property of the epoxy resin is improved by designing a honeycomb metamaterial skeleton, and the specific steps are as follows: S1, designing a skeleton structure: selecting a honeycomb shape of the honeycomb metamaterial skeleton, and regulating and controlling the geometric dimension and wall thickness parameters of the honeycomb shape; and S2, preparing metamaterial skeleton composite resin: printing and curing dual-curing epoxy resin by adopting a photocuring 3D printing technology to obtain a honeycomb metamaterial skeleton as a support, pouring thermocuring epoxy resin into gaps of the honeycomb metamaterial skeleton, and performing vacuum drying after curing to obtain the metamaterial skeleton composite resin. A photo-curing 3D printing metamaterial framework is adopted as a support, thermosetting epoxy resin is poured in gaps of the framework, and the metamaterial framework realizes directional optimization of a stress transfer path of the material by accurately regulating and controlling unit cell shapes, geometric dimensions, wall thickness parameters and the like, so that the mechanical property of the epoxy composite material is improved.

This invention discloses a binder, its preparation method, and its application. The binder comprises the following raw materials: a compound containing soft segments, a compound containing hard segments, and a chain extender. The compound containing soft segments includes polyether polyols and polyester polyols, wherein the polyether polyols are end-capped with amino or hydroxyl groups, and the polyester polyols are end-capped with amino or hydroxyl groups. The compound containing hard segments is a diisocyanate, and the chain extender is a chain extender containing phenolic groups. This binder helps solve the interface problem of the positive electrode during battery operation and is expected to improve the cycle life and stability of the battery.

The invention relates to the technical field of heat-conducting materials, and particularly discloses single-component curable 18W heat-conducting gel and a preparation method thereof. The single-component curable 18W heat-conducting gel is prepared from the following raw materials in parts by weight: 93 to 97 parts of vinyl silicone oil, 3 to 7 parts of hydrogen-containing silicone oil, 3950 to 4050 parts of hydroxyl silicone oil modified aluminum nitride and 0.1 to 0.3 part of a catalyst. The preparation method of the single-component curable 18W heat-conducting gel comprises the following steps: kneading vinyl silicone oil, hydrogen-containing silicone oil, hydroxyl silicone oil modified aluminum nitride and other raw materials at 90 DEG C for 30 minutes, and then adding a catalyst to obtain the heat-conducting gel. The gel extrusion rate is high, and glue dispensing is facilitated.