Abstract: A preparation method of a crop straw-based seawater desalinator and a product thereof, and the preparation process is as follows: (1) crushing crop straws, and screening the crushed crop straws through a mesh sieve to obtain straw powder; (2) calcining the straw powder at a high temperature under nitrogen protection to obtain biochar, and then putting the biochar into a ball mill for ball milling to obtain ball-milled biochar; (3) adding the straw powder into a sodium hydroxide solution for reaction, and centrifuging a reactant to obtain a viscous product; and (4) stirring the viscous product uniformly with the ball-milled biochar to obtain a mixture, pouring the mixture into a mold, and freezing and drying the mixture to obtain a seawater desalinator. The evaporator features high evaporation rate and the photothermal conversion efficiency, and the ion concentration of the water body after evaporation is greatly reduced.

Abstract: A preparation method of a crop straw-based seawater desalinator and a product thereof, and the preparation process is as follows: (1) crushing crop straws, and screening the crushed crop straws through a mesh sieve to obtain straw powder; (2) calcining the straw powder at a high temperature under nitrogen protection to obtain biochar, and then putting the biochar into a ball mill for ball milling to obtain ball-milled biochar; (3) adding the straw powder into a sodium hydroxide solution for reaction, and centrifuging a reactant to obtain a viscous product; and (4) stirring the viscous product uniformly with the ball-milled biochar to obtain a mixture, pouring the mixture into a mold, and freezing and drying the mixture to obtain a seawater desalinator. The evaporator features high evaporation rate and the photothermal conversion efficiency, and the ion concentration of the water body after evaporation is greatly reduced.

Abstract: A photo-curing three-dimensional printing preview method, comprising: obtaining the relationship of the conversion rate of a photosensitive resin system versus time under different curing conditions by measuring the relationship between the absorbance of the photosensitive resin system under different curing conditions and the time; fitting on experimental curves on the basis of a photo-curing kinetic equation by an iterative solution method, and obtaining a photo-curing kinetic constant of the photosensitive resin system; solving a photo-curing reaction kinetic differential equation set by using a fixed-step Euler method, and obtaining the relationship curves of the spatial distribution of each component content of the photosensitive resin system versus time; and conducting simulation printing, in conjunction with the relationship curves obtaining a space distribution of each component content in each layer of structure in a three-dimensional printing product after printing is completed, and completing a pho