2results about How to "Improve crosslink strength" patented technology

The present application belongs to the technical field of lithium resource extraction. The present application provides a gel-state lithium ion adsorbent and a preparation method and a delithiation method thereof. The preparation method comprises mixing lithium ion sieve material, alginate, galloyl glucose compound and calcium chloride to gel, and then drying to obtain dry gel, thereby obtaining the gel-state lithium ion adsorbent. The preparation method uses alginate and galloyl glucose compound to mix and crosslink, thereby improving the crosslinking strength and the compression resistance of the gel, and making the pore size distribution of the gel more uniform and dense, which is beneficial to improving the lithium extraction capacity. The obtained dry gel has a larger particle size than the powder, and has better hydrophilicity, which can increase the flowability during lithium extraction and reduce the loss, thereby improving the cycle efficiency.

The present application relates to the technical field of paint, in particular to an alkali-resistant waterproof exterior wall paint and a preparation method thereof. In order to further improve the water resistance and alkali resistance of the stone-like paint, the stone-like paint is improved, a texture protective paint is added to the structure of the traditional stone-like paint, and colored sand is added to the components, so that a concave-convex texture can be provided for the surface of the stone-like paint after the stone-like paint is finally formed. In addition, boron nitride nanosheets are added to the texture protective paint and modified, and fluorine and silicon elements are introduced into the boron nitride nanosheets, so as to improve the chemical corrosion resistance of the resin, prevent the infiltration and invasion of external corrosive media, and effectively improve the acid and alkali resistance of the resin paint.