36results about How to "Good water guiding effect" patented technology

The invention discloses a half-hole spunlace non-woven cloth. The half-hole spunlace non-woven cloth comprises a spunlace cloth area (1), wherein a plurality of half-holes (2) are formed in the spunlace cloth area (1), and the half-holes (2) are arranged in the spunlace cloth area (1) in rows and a distance between any two adjacent rows is equal; moreover, a distance between any two adjacent half-holes (2) in the same row is equal; and a distance between any two adjacent half-holes (2) in the same column is equal. The invention further provides a preparation method of the half-hole spunlace non-woven cloth. According to the half-hole spunlace non-woven cloth, one side is in the shape of continuous and smooth flat grains, and the other side is in the state of a plane with concave holes; andthe flat grain side is capable of providing a smooth and comfortable use side, and the concave hole side is capable of providing high solution absorption performance and composite performance for theproduct.

The invention discloses a material on a tunnel drainage layer, which is characterized by comprising the raw materials with the following parts by weight: 100 parts of rubber particles, 20-50 parts of mineral wool fibres and 50-80 parts of VAE emulsion. The material adopts water conductivity of inorganic fibers, elasticity of waste vulcanized rubbers and cohesiveness of the VAE emulsion, and on the basis of better drainage property, has the leveling function to fill and level up upper concave pits and has the elastic function to be adaptive to deformation of the upper structure, changes the construction technology, can carry out direct injection, improves the construction efficiency and reduces the labor intensity of workers.

The invention provides a pH controlled release microcapsule type macromolecular saline-alkaline soil modifier and a preparation method thereof. The pH controlled release microcapsule type macromolecular saline-alkaline soil modifier is made by the following raw materials in parts by weight: 300 parts of organic polymer, 50-100 parts of an active divalent cation material, 0.05-5 parts of a catalyst, 300-2000 parts of an organic solvent, 0.05-4 parts of a surfactant, 0.05-2 parts of a cross-linking agent, 10-250 parts of a pH sensitive material and 100-1000 parts of water. According to the pH controlled release microcapsule type macromolecular saline-alkaline soil modifier, the release rate of active cations can be controlled according to the change of the pH value of the soil, so that the long-acting property of replacing sodium ions in the colloidal particles of the saline-alkaline soil can be achieved; meanwhile, a polymer material polymerizes small-particle-size aggregates to form stable large-particle-size aggregates, so that the porosity of the soil is increased, and the problems of high salinity of the saline-alkaline soil, poor soil structure and the like are solved. The saline-alkaline soil modifier provided by the invention has the advantages of strong desalting capacity, excellent soil particle polymerization property, long action effect, good environmental benefit andwide application prospect.

The invention discloses a foamed cement backfilling structure of a caisson type toilet. The foamed cement backfilling structure comprises a reinforced concrete floor slab at the bottom layer, a foamed cement concrete layer and a ceramic tile finish layer, wherein the foamed cement concrete layer is located on the surface of the reinforced concrete floor slab, and the ceramic tile finish layer is arranged on the surface of the foamed cement concrete layer; a toilet stool is arranged on the surface of the ceramic tile finish layer; and an outlet is formed in the bottom of the toilet stool, and the outlet is connected with a main downcomer through a primary drain-pipe arranged in the foamed cement concrete layer in a through connection mode. The foamed cement backfilling structure is characterized in that the foamed cement concrete layer is inclined towards one side, and a groove A is formed in the bottom end of the bevel of the foamed cement concrete layer; and a plurality of grooves B are formed in the foamed cement concrete layer in the inclined direction; the groove A and each groove B intersect with each other; and a drain hole is formed in the bottom of the groove A, and the drain hole connected with the main downcomer through a secondary drain-pipe arranged in the foamed cement concrete layer in a through connection mode. In addition, the invention further provides a backfilling method of the foamed cement backfilling structure of the caisson type toilet. According to the foamed cement backfilling structure of the caisson type toilet, the structure is simple, the water draining effect is good, the foamed cement backfilling structure is beneficial to avoiding water accumulating of the toilet, and then water leakage is further avoided, and furthermore, on-site backfilling can be achieved.