43results about How to "Does not change physical and chemical properties" patented technology

The invention discloses a multi-plant composition and an extract thereof as well as a preparation method and application of a microcapsule. The multi-plant composition comprises the following six natural plants folium ginkgo, mother chrysanthemum, honeysuckle, liquorice, dandelion and oat as natural plant active components at the mass ratio of (0.5-1) to (0.5-1) to (0.5-1) to (1-3) to (2-4) to (4-6); composite plant composition powder is prepared from the six natural plant extracts through a series of separation and purification processes; and in addition, the composition microcapsule is obtained from the composite plant composition powder by a liposome embedding technology. The obtained composite plant composition microcapsule is good in stability, does not change the physical and chemical properties of cosmetics when applied to the cosmetics, is stable in color, has the effects of resisting allergy, relieving the skin, resisting inflammation, resisting irritation and relieving itching, is obvious and lasting in efficiency and has slow-release property.

The invention relates to a filter element, in particular to a filter element for filtration and a manufacturing method thereof. In the preparation process of the filter element, various raw materials are weighed according to percentage by weight in a formula, adding materials according to specified steps and then mixing and stirring evenly, extruding or punching for shaping in a preset mould, drying the water in the model at a certain temperature for sizing, namely forming the porous filter element with specified shape. The filter element of the invention utilizes various non-toxic and harmless raw materials with absorption characteristics, is formed by bonding water-borne adhesive, has the characteristics that the usage of a filter material in unit volume is large, the adsorption efficiency is high, the finished filter element after adsorption and saturation can regenerate under the condition of high temperature while the original physicochemical property of the filter element is not changed, the surface of the filter element after being jammed by absorbing and stopping sundries can be polished by sand paper and reused, and the like; in addition, the cost for manufacturing the water-borne adhesive is low and the raw materials are safe and environmental friendly.

The invention discloses a sterilizing toilet cleaning block which is prepared from raw materials comprising macromolecule adhesive, bactericide, dye, a surface active agent and cleaning auxiliary agent. The bactericide adopts nonoxidative bactericide. The sterilizing toilet cleaning block consists of nonoxidative bactericide and dye; and the dye can not discolor or fade when in use, and the sterilizing toilet cleaning block has higher sterilizing effect.

The invention discloses a preparation method of a marked plant and a preparation method of marked biochar. The preparation method of the marked plant comprises the following steps: preparing a box body; placing a plant in the box body, wherein the plant has photosynthesis capability; preparing a marking gas in the box body, wherein the marking gas is an isotope-marked carbon dioxide gas; and standing the plant for a preset time to make the plant absorb the marking gas in order to form the marked plant. The carbon element in the plant is marked in the growth process of the plant, the concentration of <13>CO2 in the box body can be controlled by controlling the concentration of Na213CO3, <13>CO2 is prepared through a chemical technology, and the utilization rate of <13>C is increased.

The invention belongs to the field of macromolecules, and particularly relates to polymer-based micron / nano functional composite spherical powder and a preparing method thereof. According to the method, polymer-based micron / nano functional composite ultrafine powder compact in combination and uniform in scattering is obtained through solid-phase shearing grinding, and the powder grain size rangesfrom 30 microns to 200 microns; the above functional composite powder is evenly scattered in a scattering agent to be heated to the temperature above the heating deformation temperature of the functional composite powder for spheroidization treatment; and then heated suspension liquid is cooled, filtered, washed, dried and screened, and the functional composite spherical powder is obtained. The method is simple in operation, economical and environment-friendly, and large-scale preparing of the polymer-based micron / nano functional composite spherical powder can be achieved. The beneficial effects that the degree of sphericity is high, size distribution is narrow, the inner structure is uniform, and mobility and stacking density are high are achieved. The functional composite powder preparedthrough the method can meet the selective laser sintering requirement and can also be applied to the fields of the biomedical engineering, super capacitors, coatings, cosmetics and the like.

The invention discloses a method for reducing effective cadmium content of soil. The method provided by the invention is characterized in that a passivator of meerschaum powder of 60 meshes is applied to farmland polluted by cadmium; a utilization amount equation of the passivator of the meerschaum powder of 60 meshes is determined according to effective cadmium content of soil; and a utilizationmethod of the passivator of the meerschaum powder comprises 1, removing crop straws of the farmland or crushing the crop straws, 2, uniformly scattering the passivator of the meerschaum powder of 60 meshes on the surface of soil of the farmland by an artificial method or a mechanical method, 3, mechanically turning the soil at least twice for uniform mixing, wherein a soil turning depth is in a range of 15 to 20 centimeters, and in application, it is guaranteed that wind power is below a level of 2 to 3 or the meerschaum powder do not be blown away, and 4, sowing crops and then carrying out irrigation 2 to 3 times under the condition that a normal demand amount of agricultural production water is satisfied, wherein quality of the agricultural production water for the irrigation satisfies a farmland irrigation water quality standard and an irrigation method is aopted. The method for reducing effective cadmium content of soil has the advantages of wide application scope, low cost, simple operation, no influence on agricultural production and environmental benefits, can be utilized for effective treatment on farmland which has a large area of a cadmium-polluted part, can reduce the content of cadmium which can be absorbed by crops, and can prevent penetration of effective cadmium of the soil into agricultural products.