3 results about "Aluminum oxide hydroxide" patented technology

A one-component powder coating composition is provided comprising a curable resin and one or more curing additives for curing the curable resin, wherein the powder coating composition comprises: one powder coating component comprising the curable resin and the one or more curing additives; and 1.0 to 20 wt % of a dry-blended inorganic particulate additive consisting of inorganic components i), ii), and iii), wherein component i) is non-coated aluminium oxide or non-coated silica, component ii) is aluminium hydroxide and / or aluminum oxyhydroxide, and component iii) is silica, and wherein the powder coating component has a particle size distribution with a Dv90 of at most 50 μm and a Dv50 of at most 30 μm.

The application discloses a preparation method of sintered artificial marble, and comprises the following steps: (1) preparation of fillers; (2) preparation of glaze; (3) preparation of artificial marble blank; (4) coating of glaze; (5) sintering, cooling, polishing and modification of the artificial marble blank with surface glaze obtained in the step (4), so as to obtain the sintered artificial marble. The preparation method of the sintered artificial marble can enhance the glaze surface of the artificial marble by using the water bath heating synthesized sodium fluoride nano-silicon dioxide and hydroxyl aluminum oxide modified graphene oxide composite material, and can significantly improve the compactness and scratch resistance of the surface of the artificial marble; the nano-silicon dioxide can well compensate the holes on the surface of the glaze of the artificial marble; the fibrous hydroxyl aluminum oxide and the layered graphene oxide are in synergistic effect, and after sintering, the hydroxyl aluminum oxide and the graphene oxide are tightly connected to form a network structure in the glaze, so that the compactness and hardness of the glaze are improved, and the friction resistance and scratch resistance of the surface of the artificial marble are enhanced.

This invention relates to a method for calculating the crystallinity of aluminosilicate adjuvants based on XRD peak shape weighting analysis, belonging to the field of materials analysis technology. The method includes: loading raw XRD data and defining the analysis range; performing baseline correction using the asymmetric least squares method; finding peaks based on standard peak positions and determining the full width at half maximum (FWHM) based on the actual peak centers using Gaussian fitting; calculating the contribution weight of each diffraction peak to crystallinity based on the FWHM using a weighting function, where a smaller FWHM indicates a higher weight; calculating the weighted area of ​​each peak and the total integral area of ​​the corrected spectrum; and finally calculating the percentage of crystallinity based on the ratio of the weighted total area to the total area. This invention, by introducing peak shape weighting analysis, quantifies the impact of diffraction peak broadening on crystallinity assessment, significantly improving the reliability of aluminosilicate adjuvant crystallinity calculation and providing a solution suitable for high-throughput calculation of aluminosilicate crystallinity.