2 results about "Micro tensile" patented technology

The application relates to the technical field of heat dissipation materials, and discloses a precision die cutting and detection method for a heat dissipation material, which comprises the following steps: S1, digital modeling of material microstructure and mechanical properties: sampling the incoming material batch, observing the multilayer stacking structure of the material batch by using a scanning electron microscope, measuring the approximate value of the interlayer binding energy, and obtaining the elastic modulus, yield strength and brittle-ductile transition critical thickness in different directions by using a nanoindenter and a micro tensile testing machine; the four core strategies of material digitization, process self-adaptation, process active control and detection intelligentization are used in the application scheme, so that the precision die cutting of graphite sheets is changed from needing the processing experience of workers to a predictable and optimized precision manufacturing engineering driven by a system, and the application scheme is particularly suitable for the fields of 5G equipment, ultra-thin consumer electronics, high-reliability power devices and the like which have extremely high requirements for heat dissipation components.

This invention discloses a method for preparing and applying an anti-adhesion composite film, comprising: firstly, rolling a primer onto a heat-sealing substrate and drying and curing it, and then applying a topcoat onto the primer layer; the key is that, before the primer and / or topcoat are fully cured, the composite structure is micro-stretched by 0.5%–3%, thereby forming fine textures with a width of 20–200 nm and a depth of 5–50 nm in situ on the coating surface. This improves the anti-adhesion performance of the composite film and effectively solves the problem of residue of highly viscous contents inside packaging.