52results about How to "Available for mass production" patented technology

The invention discloses a doped graphene and a preparation method thereof. The doped graphene is prepared by adopting a chemical vapor deposition method, which comprises the steps as follows: a substrate with catalyst is put into a reaction kettle without oxygen, with the temperature of the substrate being 500 DEG C to 1200 DEG C; then material with carbon element and doped elements is piped intothe reaction kettle, and the doped graphene is obtained; wherein, the catalyst is metal or metallic compound. The doped graphene prepared by the invention has good quality, and the preparation methodis simple and feasible and can be conveniently operated and used for large-scale production.

System and method of detecting an onset of tread rubber separation of a pneumatic tire on a vehicle, in which a permanent first periodic vibration is produced, in at least one of each axle and each wheel, that is proportional to a wheel rotational speed as a speed output signal. The speed output signal is fed to a signal processing device, wherein in the onset of tread rubber separation, there is provided the superimposition on a first vibration or the speed output signal, at least one separately defined periodic vibration characteristic of the onset of tread rubber separation and proportional to the wheel rotational speed. The superimposition of the first periodic vibration with the at least one separately defined periodic vibration characteristic of the onset of tread rubber separation is detected in the signal processing device and a warning signal is produced.

The invention discloses a method for preparing a three-dimensional porous graphene material by solution. The method comprises the following steps of: immersing a three-dimensional porous template into a graphene oxide solution, and then depositing the graphene oxide on the template to realize three-dimensional assembling of the graphene oxide on the template, and then preparing the three-dimensional porous graphene material containing the template by reduction; removing the template from the three-dimensional porous graphene material containing the template, and then washing to obtain the three-dimensional porous graphene material. The aperture of the three-dimensional porous graphene material can be regulated and controlled by using the templates with different apertures the material prepared by the invention has the advantages of low density, high specific surface area, high heat conductivity, high-temperature resistance, and corrosion resistance; the preparation method is economical and simple and suitable for large-scale production. And the prepared material is applicable to aspects such as catalytic carriers, preparation of flexible conductors, and stretchable electronics.

The invention relates to the technical field of microcapsules and particularly relates to microcapsule granules and a preparation method thereof. The microcapsule granule is prepared from a wall material and a core material, wherein the wall material is prepared from a first wall material and a second wall material; the first wall material and the second wall material are independently selected from a polyanionic electrolyte, a polycationic electrolyte and a polymer amphoteric electrolyte; the first wall material and the second wall material are different kinds of polyelectrolytes; the mass ratio of the first wall material to the second wall material is 10:(1-10); the microcapsule granules include nonspherical microcapsule granules with grooves in the surfaces. According to the microcapsule granules and the preparation method thereof provided by the invention, two different kinds of polyelectrolytes are mixed according to a specific ratio to obtain the wall material; the prepared microcapsule granules include 70%-85% of nonspherical microcapsule granules with grooves in the surfaces.