129 results about "Microwave effect" patented technology

The invention discloses a microwave excitation coal-bed gas desorption and seepage experimental device, and belongs to coal-bed gas desorption and seepage experimental devices. The microwave excitation coal-bed gas desorption and seepage experimental device comprises a tri-axial pressure device and a microwave generating device. The tri-axial pressure device comprises an upper gland, a lower gland, a barrel, a piston, a barrier, an upper pressure head and a lower pressure head, the microwave generating device comprises a microwave antenna, a waveguide tube, a resonant cavity, a magnetron and a controller, the upper gland and the lower gland are respectively arranged on the upper portion and the lower portion of the barrel, the piston is arranged inside the lower gland, the barrier is fixed onto the inner side wall of the lower gland, the lower pressure head is arranged inside the lower gland, and the microwave antenna is arranged on the inner side wall of the barrel; the upper pressure head is arranged in the barrel, and the waveguide tube, the resonant cavity, the magnetron and the controller are arranged on the outside of the barrel. The microwave excitation coal-bed gas desorption and seepage experimental device has the advantages that desorption and seepage functional tests can be carried out on coal, desorption and seepage laws of the coal under a microwave effect can be acquired, and reliable data can be provided for reasonably draining and comprehensively utilizing coal-bed gas resources.

The invention discloses a method for preparing hydrophobic nano-white carbon black by virtue of a sol-gel method. According to the method, rice hull ash and bentonite are taken as the raw materials, the rice hull ash is subjected to acid pickling and impurity removal, the bentonite is subjected to acid pickling under a microwave effect and reacts with sodium hydroxide in a microwave reaction manner so as to generate a water glass liquid, the water glass liquid is taken as a silicon source, ammonia water is taken as a catalyst, and the prepared white carbon black is small in particle size, large in specific surface area and high in purity and has excellent physical and chemical properties; vinyl silane is taken as a modifying agent, hydrophobic group vinyl is successfully grafted to the surface of the white carbon black by virtue of the sol-gel method, so that the hydrophobicity of the white carbon black is improved, the interaction effect between the white carbon black and silicone rubber is enhanced, and the white carbon black can be widely applied to the fields of low, middle and high-end rubber products, special-use coatings, silicone rubber products and the like and can be particularly applied to the field of insulating silicone rubber products.