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34results about How to "Not easily soluble in" patented technology

Ferroelectric material dehydrate potassium metagermanate tetraborate, preparation method and application thereof

The invention relates to a frroelectric material dehydrate potassium metagermanate tetraborate, a preparation method and application thereof. The dehydrate potassium metagermanate tetraborate has a chemical formula of K2GeB4O9.2H2O; and the chemical formula belongs a monoclinic system with a space group of Cc, single cell parameters: a is equal to 6.793 (1), b is equal to 12, 0699 (3), c is equal to 11.895 (3)*, alpha and gamma are equal to 90 degrees, beta is equal to 91.156 (4) degrees, V is equal to 975.1(4)*<3>, and Z is equal to 4. The dehydrate potassium metagermanate tetraborate is prepared by a water (agent) hot method. The dehydrate potassium metagermanate tetraborate has frroelectric property and second-order non-linear optical properties, and power SHG coefficient of the dehydrate potassium metagermanate tetraborate is two times of KDP, which corresponds to LBO. The dehydrate potassium metagermanate tetraborate can be used for manufacturing secondary harmonic generators, upper-lower frequency converters, optical parametric oscillators, coders for storing and restoring information, transmitting light information, displaying images and performing holography, and frroelectric light valve arrays for storing the holography.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI

Fenton-containing sludge catalyst for water treatment, and preparation method and application method thereof

The invention discloses a Fenton-containing sludge catalyst for water treatment, and a preparation method and an application method thereof, and belongs to the technical field of water treatment. Thecatalyst comprises a carrier and an active component, the carrier is prepared from clay, micalex, sepiolite, kaolin and quartzite as raw materials, the active component is prepared from Fenton sludgeas a precursor, the Fenton sludge is sludge dried at low temperature, the content of the iron element in the sludge is 60-70%, and the content of organic matters in the sludge is 10-15%; and silicatemineral carriers such as clay, micalex, sepiolite, kaolin and quartzite play a good skeleton supporting role, it is guaranteed that the catalyst has high strength, the substances are not likely to bedissolved in water, and the service life of the catalyst in water is guaranteed. The Fenton sludge contains the catalyst active component, and pores are generated in the roasting process of the catalyst, so that the porosity of the catalyst is ensured, and the contact probability of components in catalyst particles and ozone is increased; and the strength of the prepared catalyst is greater than 400 N, and the service life of the catalyst is prolonged by 2-3 years.
Owner:光大水务(深圳)有限公司 +2

Modified polyphenol amine material as well as preparation method and application thereof

The invention relates to the technical field of functional polymer materials, in particular to a modified polyphenol amine material and a preparation method and application thereof.The preparation method comprises the following steps that an amine source and a phenol source react to generate polyphenol amine; adding low molecular weight polystyrene-maleic anhydride into the polyphenol amine to carry out imidization reaction; adding a phenol source into an imidization reaction product, carrying out Michael addition reaction with free amido, and then adding an amine source to extend a molecular chain, so as to obtain a product; and washing, separating and freeze-drying the product by using an alkaline aqueous solution to obtain the product. The amine source is diamine or polyamine; the phenol source is diphenol or polyphenol. The preparation method is convenient to operate, controllable in process, mild in condition and convenient to popularize and use, and the prepared polyphenol amine composite adsorption material containing the styrene-maleimide group solves the problems that a common polyphenol amine adsorption material is poor in water solubility resistance and acid and alkali resistance, can be applied to treatment of various kinds of wastewater and has wide application prospects.
Owner:QILU UNIV OF TECH

A sulfide-silicon nitride suspended waveguide capable of forward Brillouin scattering and its preparation method

The invention belongs to the technical field of semiconductor devices, and particularly relates to a sulfide-silicon nitride suspended waveguide design capable of realizing forward Brillouin scattering and a preparation method thereof. The sulfide-silicon nitride suspended waveguide sequentially comprises a silicon substrate, a silicon oxide layer, a silicon nitride thin film layer and a sulfide thin film layer from bottom to top, wherein the silicon oxide layer below the waveguide is partially corroded to form a suspended structure. The invention provides a sulfide-silicon nitride suspended waveguide structure capable of realizing forward Brillouin scattering. The introduction of the silicon nitride structure plays a role in supporting the chalcogenide film; defects of vulcanizate softening, hanging difficulty can be overcome, meanwhile, silicon nitride is compared with sulfide, the refractive index is small, the difference of acoustic sound velocity properties is large, simultaneouslimitation of a light field and a transverse sound field is facilitated, the forward Brillouin gain coefficient obtained through simulation is 1415 m <-1 > W <-1 >, and it is proved that the structurecan be used for achieving the possibility of forward stimulated Brillouin scattering, optical machinery and other applications.
Owner:SUN YAT SEN UNIV
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