33results about How to "Improve permeability" patented technology

The invention discloses a novel drainage board structure based on a quick-mounting lateral drainage body on a traditional drainage board. The key point of the technical scheme of the novel drainage board structure is that the novel drainage board structure comprises a drainage board and lateral drainage bodies, wherein the inner side of each geotechnical cloth is provided with a small keel; the geotechnical cloths with the small keels are arranged on two opposite sides of the drainage board; each keel is bendable and consists of a fixing part and an extension part, wherein the fixing part andthe extension part are in integral forming and are arranged in an L shape, the junction of the fixing part and the extension part has elasticity, the elasticity guarantees that the extension part drives the geotechnical cloth to keep a horizontal distribution state, and the elasticity guarantees that the extension part can be opened to be under a lateral state; and a fastening device is arranged between each fixing part and the drainage board. The extension parts laterally outwards extend and distribute along with the geotechnical cloths, the lateral drainage bodies are artificially installedon intervals at different depths of the water drainage board and can penetrate through a smearing area or a low-permeation layer on the periphery of the water drainage board, and therefore, a vacuum drainage and solidification effect can be improved to a high degree.

The invention discloses a PVC synthetic leather surface treating agent which is prepared from a component A and a component B. The component A comprises 75-90% of a solvent, 5-20% of a vinyl chloride-vinyl acetate copolymer, and 0.1-3% of an auxiliary agent, wherein the auxiliary agent is a modified silicon auxiliary agent; the component B comprises 2-8% of polymethylacrylic acid, or comprises 0.1-3% of a dispersant and 3-8% of a matting agent. Accordingly, the invention also discloses a preparation method of the PVC synthetic leather surface treating agent, PVC synthetic leather prepared by applying the surface treating agent and a preparation method of the PVC synthetic leather. By adopting the surface treating agent, when a leather is subjected to surface treatment, one-plate treatment (i.e. one-time starching) is only required, then the surface treating agent can evenly permeate into a glue layer of the leather, even though a leather has deeper patterns, and the surface treating agent also can quickly permeate to the pattern bottom and evenly surfacely coats the leather surface, so that the leather surface after surface treatment is starched evenly and beautifully.

The invention relates to a method for improving the specific surface area and adsorption performance of opoka. According to the method, natural or roasted opoka, an alkali source, MgCl2 and glycerol serving as raw materials are uniformly mixed and subjected to aerobic autoclave treatment, zeolite facies generated on the opoka shell surface can be used for enhancing the adsorbability, and the microporous structure of the opoka surface is more complicated and diversified, so that the specific surface area of the opoka is remarkably increased in the process, and the adsorption performance is further promoted. The method can greatly increase the application effect and value of opoka in the fields of adsorbents, filter aids and the like.

The invention discloses a manufacturing method of a horn vibrating reed applying desizing raw cloth. The manufacturing method comprises the steps of pretreatment, sizing, desizing, impregnation, drying, hot-press forming, cutting, modification and the like. Therefore, the permeability of the resin or the functional additive to the raw cloth can be improved; and after modification, the elastic restoring force and the fatigue resistance of the horn vibrating reed can be improved, so that the deformation resistance of the horn vibrating reed is improved, and the effect of the functional additivecan be uniformly achieved on the prepared horn vibrating reed. Furthermore, the desizing device can effectively prevent the raw cloth from violently shrinking after desizing, so that the size of the obtained desizing raw cloth is equivalent to that of the sizing raw cloth, and the difference between the total area of the trumpet vibrating piece which can be manufactured by the desizing raw cloth and the total area of the trumpet vibrating piece which can be manufactured by the sizing raw cloth does not exist.

The invention belongs to the technical field of medicines, and particularly relates to a hydrogel antipyretic patch and a preparation process thereof. The hydrogel antipyretic patch provided by the invention is made by using NP-700 as a hydrophilic polymer and then being supplemented with a gel polymer, a gel rate control agent, a preservative, a moisturizer, a pH (potential of Hydrogen) control agent, a thickener and a cooling compound; the hydrogel antipyretic patch is safe in component and quick in antipyretic speed, has no pungent smell, has a light aroma, and is high in use comfort degree; nerol added into the hydrogel antipyretic patch can be closely combined with a high-molecular skeleton due to a unique molecular structure, and is used for dispersing the adsorptive power, to a water molecule, of a high molecule; at a certain temperature, the permeability of hydrogel is ameliorated; the vaporized water molecule can be quickly diffused; the effect of quickly lowering a temperature is achieved; in addition; the fresh smell of the nerol can be also used for promoting the use feeling of the antipyretic patch; the process for preparing the hydrogel antipyretic patch, which is provided by the invention, is simple; the cost is low; the making procedure is nontoxic and pollution-free.