35results about How to "Suitable for quantitative production" patented technology

The invention discloses a nano precious metal load polymer vesica and a preparing method thereof. The method includes the steps that firstly, phenolic resin prepolymer is prepared to serve as a reaction precursor, a P4VP-PF-PSt composite vesica is further prepared through a hydrothermal method in combination with functional monomer styrene and 4-vinylpyridine, then the surface of the vesica is evenly loaded with precious metal nano particles by adding a salt solution and a reduction agent of the precious metal, and a nano hybrid material is obtained. The preparing method is simple, environmentally friendly, suitable for industrialized production and capable of being used for preparing vesicae of different particle sizes and different thin film thicknesses by adjusting the reaction temperature, the reaction time, solvents and surfactant.

The invention discloses a temperature sensing demodulation device and a demodulation method based on a microwave photonic filter. The microwave photonic filter comprises a multi-wavelength fiber laser and a dispersion fiber, which are used to form laser light and couple and output the laser light; The inductive demodulation device includes an electro-optical modulator, a microwave signal source, a photodetector, an electric power meter and a temperature demodulator; the electro-optical modulator is used to modulate the coupled laser to output a modulated optical signal; the dispersive fiber is used to sample the modulated optical signal when Delay to output the time-delayed optical signal; the photodetector is used to recover the time-delayed optical signal to obtain the electrical signal; the electric power meter is used to measure the power of the electrical signal; the temperature demodulator is used to scan the frequency of the microwave signal, and the The maximum power of the electrical signal obtains the corresponding microwave signal frequency, and obtains the temperature change information induced by the optical fiber sensor; thus, the optical fiber temperature sensing and demodulation can be realized through a simple structure, and at the same time, the required cost is reduced.

The invention discloses a pair of non-sticky bipolar electrocoagulation forceps which comprises a left forceps rod, a right forceps rod, and forceps tips fixed at the heads of the forceps rods; a lead groove is formed in the inner side of each forceps rod; a lead wire is arranged in each lead groove; the lead wires are hollow copper pipe; one end of each lead wire is fixedly connected one forceps tip, and the other end is connected with a lead used for being connected with the host of an electrocoagulator; the non-sticky bipolar electrocoagulation forceps are further provided with a dripping pipe connector connected with medical water delivery equipment. The lead wires of the forceps not only can be used for electric conduction but also can serve as a dripping pipe, the structure is simple, and the cost is lower; meanwhile, each forceps adopts a whole piece of silver alloy, the forceps rods are made of modified engineering plastic, so that the characteristics of high electric conductivity and high thermal conductivity can be achieved, rapid heat dissipation can be ensured during electrocoagulation, and terminal burn to the perienchyma can not be caused easily during electrocoagulation; the forceps rods cover all conductive parts completely, so that a better insulation effect can be achieved, and the whole coagulation forceps are attractive and light.

The invention discloses a method for preparing a reduced oxidized graphite / nano nickel composite wave-absorbing material by using gamma ray and relates to a method for preparing the reduced oxidized graphite / nano nickel composite wave-absorbing material, for solving such technical problems of the conventional method for preparing the reduced oxidized graphite / nano nickel composite wave-absorbing material as high preparation cost, complicated preparation process and high reaction temperature. The preparation method comprises the following steps: 1, preparing graphite oxide, 2, preparing a mixture solution, 3, reacting under the radiation of gamma ray to obtain a product, and 4, filtering, separating, washing and drying the product so as to obtain the reduced oxidized graphite / nano nickel composite wave-absorbing material. The reaction in the method is performed at normal temperature and normal pressure, and the method is gentle in reaction condition, low in preparation cost, simple in application method and particularly applicable to large-scale production of the material. The method is applied to the field of preparation of the reduced oxidized graphite / nano nickel composite wave-absorbing material.

The invention relates to a hydrogen-sensitive composite silica gel material and a preparation method thereof. The hydrogen-sensitive composite silica gel material includes a composite silica gel matrix and hydrogen-sensitive active components, and changes color when encountering hydrogen gas. The hydrogen-sensitive composite silica gel material provided by the present invention can rapidly change color within 60 seconds when exposed to hydrogen at room temperature, providing a convenient, fast and sensitive hydrogen detection method for people to intuitively judge the presence of hydrogen with the naked eye.