39results about How to "Play a role in moisture conservation" patented technology

The invention discloses a manufacturing method of a funnel type soil moisture preservation floor tile. The manufacturing method comprises the following steps: (1) such materials with good water sucking performance as diatomaceous earth are adopted to burn the floor tile; (2) such modes as brushing, spraying and printing are adopted to coat waterproof paint on part area of the lower surface of the floor tile, or clay or glaze with proper concentration is dip and coated on part area of the lower surface of the floor tile; and such modes as brushing, spraying and printing are adopted to coat the waterproof paint on all area of the vertical surface of the floor tile, or the clay or glaze with proper concentration is dip and coated on all area of the vertical surface of the floor tile; and (3) the coating layer of the floor tile is cured according to construction requirements of the paint. The manufacturing method is simple; the manufactured floor tile can be used for all outdoor pavements, in particular city sidewalks, and aims to change a water stop state in traditional hard pavements to lead natural rainfalls into underground soil as many as possible and to stop evaporation of underground water as much as possible to achieve the soil moisture preservation effect.

The invention discloses a special weeding film for fruit trees and a preparation process of the special weeding film. The special weeding film is prepared from the following components in percentage by mass: 65-80% of linear low-density polyethylene, 4-10% of low-density polyethylene, 6-10% of anti-aging masterbatch and 10-15% of light-blocking black masterbatch, wherein the anti-aging masterbatch is formed by reasonably matching, mixing and granulating according to demands. According to the preparation process disclosed by the invention, a conventional ground film blowing unit is adopted, PLC terminal software is adopted for inputting signals, particles which are well matched and mixed are put into a feed inlet of an extruder by a mechanical hand, and screw conveying, homogenization, compression, filtration, molding, traction, air ring cooling, coiling and packaging are performed; and the compression ratio of a mold head is controlled at 4.0-4.5 in molding, and the blow-up ratio of the film is controlled at 3.0-3.5. Compared with general molding requirements, the mechanical strength of the film is improved in comparison with that of the ordinary weeding ground film. According to the preparation process disclosed by the invention, the problems that a small amount of additives is added in the traditional process and the mixing with main raw materials is non-uniform to cause that the product quality is affected are solved, the stability of the product quality is ensured, the frequency of adding the materials is reduced, the time is saved and the product performances are further improved.

This invention discloses active soil and flocculant, absorbent complex material nitrogen fertilizer fixation method. Sagging bar soil, active chitosan, polyacrylamide and nitrogen fertilizer are used as certain ratio to prepare one kind of new style slow release, low cost and high efficiency solid nitrogen fertilizer. Nitrogen ion is absorbed and fixed through above materials synergistic reaction to prevent fertilizer active ingredient dissipating. Fixation time and crop growing fertilizer phase is same, they are fully absorbed by crops and fertilizer draining or volatilizing is reduced. At the same time, because nitrogen element is efficiently prevented from entering water body, water body nutrition controlling and agricultural ecology environment protection is reached. Traditional fertilizer is placed, and fertilizer using dosage can be reduced, so it has great value for controlling water body nutrition source pollution and protecting ecology environment.