35results about How to "Meet the needs of green environmental protection" patented technology

The invention discloses a composition for preparing organic silicon elastomer, which contains polymer A and compound B, wherein the polymer A is silicones polymer containing at least two carboxyl groups, the compound B contains at least two aziridine rings, and the mol ratio of the carboxyl groups of the polymer A to the aziridine rings of the compound B is 1:0.2-10. The invention further discloses a method for preparing organic silicon elastomers by using the composition, and an organic silicon elastomer and application thereof.

The invention discloses a local loading forming-based optimization method for a preformed blank of a rib plate part. Isothermal local loading forming is realized by controlling material flow and macroscopic defects of a transitional region. The preformed blank subjected to optimization design can effectively improve the uniformity of the material flow, reduce transverse material flow of a cross rib in the transitional region, and improve the filling capability of a rib type cavity. In engineering application, the usage performance of members is improved, the production cost is reduced, and a foundation is laid for forming and integrated manufacturing of large complex members made of titanium alloy.

The invention discloses an air purifier. The air purifier is characterized by being prepared from the following materials in percentage by mass: 0.2-0.3 percent of cactus extract, 0.5-0.8 percent of lemon extract, 0.1-0.3 percent of aloe extract, 0.4-0.7 percent of mint extract, 0.2-0.6 percent of wormwood extract, 0.3-1 percent of sodium carboxymethylcellulose, 0.1-0.5 percent of surfactant and de-ionized water. The air purifier is nontoxic and harmless, and can purify air and remove peculiar smell.

The invention relates to a parquet bamboo floor block formed by excess stock and a manufacturing method thereof, belonging to the technical field of decoration project of buildings. The bamboo floor block comprises a bamboo floor parquet and a frame; wherein, the bamboo floor parquet is embedded into the frame; the bamboo floor parquet consists of at least two cell blocks; each cell block is formed by laminating multilayer of bamboo-strand veneers; the bamboo texture directions of the adjacent two cell blocks are vertical; the frame is also formed by laminating multilayer of bamboo-strand veneers; the bamboo-strand veneers are formed by bamboo floor excess stock. The manufacturing method comprises the following steps: material preparing, cutting, polishing, laminating and forming by splicing. The method provided by the invention can reprocess and reuse the bamboo floor excess stock which originally serves as waste in the process of home decoration, and the whole manufacturing process is simple. At the same time, the newly prepared parquet bamboo floor block features skid and abrasion resistance and fine effect of parquet which can not be found in the current bamboo floor block.

The invention provides a process for manufacturing health-care moxa. The process has steps of drying fresh folium artemisiae argyi in shade, crashing and processing dried folium artemisiae argyi into moxa so as to further develop and utilize the wild folium artemisiae argyi, widely apply folium artemisiae argyi to fields of life articles, disease prevention and health care, medicine and the health, and the like, and lead the moxa to better server for human health. The process for manufacturing health-care moxa has an extremely wide application prospect.

The invention provides a bacteriostatic and degradable food packaging film and a preparation method thereof. The bacteriostatic and degradable food packaging film is prepared from the following raw materials in parts by weight: 50-80 parts of crop straw, 10-20 parts of succinic glycoside, 10-20 parts of polybutylene succinate, 12-22 parts of polylactic acid, 8-16 parts of polyvinyl alcohol, 6-12 parts of sepiolite, 5-10 parts of zinc oxide, 8-15 parts of silicon dioxide, 4-8 parts of gamma-aminopropyltriethoxysilane, 3-8 parts of a dispersing agent, 8-16 parts of tea polyphenol, 10-16 parts ofchitosan, 9-15 parts of sodium benzoate, 15-30 parts of N methylmorpholine-N-oxide NMMO/water, 4-9 parts of dodecyl trimethyl ammonium chloride, 2-7 parts of 1-ethyl-3-methylimidazolium tetrafluoroborate, 8-14 parts of isopropanol and 10-20 parts of water. The bacteriostatic and degradable food packaging film has excellent antibacterial performance, mechanical properties, moisture and gas permeability and degradability and has a broad application prospect in the field of food packaging.

The invention provides a waterborne polyurethane emulsion as well as a preparation method and application thereof. The waterborne polyurethane emulsion is prepared from the following raw materials: abio-based emulsifier, diisocyanate, a first chain extender, a second chain extender, a salt-forming agent, a viscosity reducer and deionized water. The bio-based emulsifier is used as a preparation raw material for the first time, and the bio-based emulsifier not only contains hydroxyl capable of reacting with isocyanate radicals, but also contains carboxyl capable of generating salt forming reaction, therefore, requirements of a traditional waterborne polyurethane emulsion preparation process on catalysts and organic solvents are avoided, and consumption of hydrophilic chain extenders can bereduced, besides, the bio-based emulsifier is used as a soft segment in polyurethane molecular chains, and the molecular structure of the bio-based emulsifier contains carboxyl, so that the particle size of the waterborne polyurethane emulsion is reduced, and the dispersity and stability of particles are improved. The preparation method is simple and easy to operate, no solvent or catalyst is usedin the whole preparation process, and the preparation method is more environmentally friendly.

The invention provides a phototropic controller for a solar panel. The phototropic controller is used for controlling the phototropic direction of the solar panel, and comprises a ray receiver, a vertical control circuit and a horizontal control circuit. The cross section of the upper part of a shading plate takes the shape of +; the cross section of the lower part of the shading plate is Y-shaped; when sunlight shines onto photosensitive sensors at different positions, the photosensitive sensors control the vertical control circuit or the horizontal control circuit according to received sunlight signals, so as to control a second control motor or a first control motor, and adjust the direction of the solar panel to ensure that the solar panel receives sunlight with a maximum angle and absorbs solar energy to the maximum extent all the while.

The invention belongs to the field of cement, and particularly relates to a retarding clinker and a preparation method thereof. The retarding clinker comprises the following raw materials in percentage by mass: 81.0-93.0% of limestone, 3.0-15% of clay, 1.0-5.0% of non-ferrous metal ash residues, and 1.5-3.5% of fluorite tailings, wherein the content of calcium fluoride in the fluorite tailings is15-30%. By adding a certain amount of fluorite tailings, the initial setting time and the final setting time of the clinker are prolonged, and the production of the delayed coagulation clinker is realized, so the requirements of special engineering on the performance of retarding cement can be met; in addition, the mechanical property of the clinker is still maintained, so concrete quality can beensured while the requirements on cement retarding characteristics are met; and meanwhile, the fluorite tailings are effectively utilized, the utilization way of the fluorite tailings is broadened, stacking and external emission of waste production enterprises are reduced, and the demands of environmental protection are met.

The invention relates to the field of side slope protection, in particular to a deep roadcut green protective structure, a roadcut protective system and construction methods of the deep roadcut greenprotective structure and the roadcut protective system. The deep roadcut green protective structure comprises a lateral ditch platform; a first side slope is disposed on the outer side of the lateralditch platform; an anchor rod assembly is disposed on the first side slope; a side slope platform is disposed at the top of the first side slope; first anchored piles are disposed in a base body belowthe side slope platform; and a plurality of ornamental plants are disposed on the first side slope. By means of the deep roadcut green protective structure, the first side slope is disposed on the outer side of the lateral ditch platform, the stability of a roadcut side slope is guaranteed through the first anchored piles and the anchor rod assembly, the visual field of a driver and a passenger is widened, the green landscape effect is good, the demand of environmental protection is better met, and the protection cost is lower.

The invention belongs to the technical field of building materials, and relates to a production process for a formaldehyde-free multi-layer solid-wood composite floor. The production process for the formaldehyde-free multi-layer solid-wood composite floor comprises the working procedures of gluing and veneering, cold-pressing, hot-pressing or curing, cutting, priming paint coating, forming, finishing paint coating, and packaging and finished product obtaining, wherein in the working procedure of gluing and veneering, the surface of a criss-cross multi-layer plate base material is coated with awater-based styrene-butadiene rubber emulsion, a single-side gluing amount is 100-200 g/m <2>, and a layer of hard broad-leaved wood veneer/wood skin with a thickness of 0.6-1.2 mm is pasted after gluing. According to the invention, by adjusting and optimizing the technological parameters, the formaldehyde-free multi-layer solid-wood composite floor with the physical and mechanical properties meeting the requirements of various indexes is prepared. The production process is simple, easy to operate and low in cost, and the characteristics of being aldehyde-free, green and environment-friendlyare met; and the stability, water resistance, impregnation peeling performance and other performance of the prepared formaldehyde-free multi-layer solid-wood composite floor reach the standard, the formaldehyde release amount is lower than 0.03 mg/m <3>, the standard requirements of 'aldehyde-free artificial plates and products thereof' are met, and other harmful organic volatile matters are avoided, so that the requirements of being green and environment-friendly are met.

The invention belongs to the technical field of floor decoration materials, and particularly relates to a flax composite floor. The flax composite floor comprises a flax straw dust composite layer, acalcium carbonate composite layer and a hessian layer which are sequentially bonded; the flax straw dust composite layer comprises flax straw dust, waterborne polyurethane, linseed oil and rosin; thecalcium carbonate composite layer comprises calcium carbonate, the waterborne polyurethane, the linseed oil and the rosin. The flax composite floor has the advantages that component materials in the floor does not volatilize pollutants, the purposes of green and environmental friendliness are really achieved, composite material structures are allowed to be optimized by three layers of composite structures to be conformed to actual using demands, the content of all raw materials is optimized, so that the composite floor has higher breaking strength and lower surface permeability, therefore a provided product does not volatilize pollutants, and green and environmental friendliness of the flax composite floor are achieved.

The invention discloses an image positioning method based on data modal missing and Embedded Net, which is composed of two stages of off-line modeling and on-line positioning, and comprises the following steps: S1, collecting training images, preprocessing the training images, carrying out category division, and taking the training images as a training data set; S2, extracting features of the training images and fusing with the features; performing offline classification learning to obtain a feature extraction network, a feature fusion network and a position classification model of optimal parameters; S3, collecting a target image, and performing image preprocessing on the target image; and S4, performing feature extraction and feature fusion on each target image, and then obtaining a position estimation value of the target. The multi-image measurement technology and the machine learning technology are combined, target positioning for the indoor complex environment is achieved, follow-up positioning work is conducted through the images collected by the camera, the problem of signal attenuation is solved, and the implementation cost of the scheme is reduced.

The invention belongs to the technical field of cellulose solutions, and discloses a polybasic ionic liquid and a preparation method and application thereof, the ionic liquid has one of the following general formulas: C + A2-C + and C + A3-C +-C +, in the general formulas, C + is a super alkali cation, and A2-and A3-in the general formulas are binary and ternary organic acid anions. The ionic liquid disclosed by the invention is simple to prepare and low in cost, and is prepared only by reacting organic super alkali with binary and ternary organic acids under a solvent-free condition, and subsequent separation and purification are not needed. According to the invention, polybasic organic acid is introduced into the super-alkaline ionic liquid to prepare the polybasic super-alkaline ionic liquid. The multi-element ionic liquid has a multi-cation and multi-anion structure, can provide more hydrogen bond binding sites and is beneficial to dissolution of cellulose, and the cellulose membrane material can be obtained after the dissolved cellulose is solidified and regenerated by water.

The invention discloses a method for prolonging the fragrance retention time of essence, which comprises the following steps: proportionally mixing a water-soluble polymer and essence, granulating themixture by a dry granulator, and performing screening to obtain modified essence. According to the method for prolonging the fragrance retention time of the essence, the modified essence is obtainedafter the water-soluble polymer and the essence are mixed in proportion, subjected to dry granulation and sieved, the fragrance retention time of the essence can be prolonged, the water-soluble polymer material is dissolved after encountering water, the essence is released, the method is convenient to use, and the effect of the essence is not affected.

The invention discloses a water-based polyurethane dispersion, a preparation method of the water-based polyurethane dispersion and a self-crosslinking type water-based polyurethane waterproof coating. The self-crosslinking type water-based polyurethane waterproof coating comprises the water-based polyurethane dispersion, the waterborne polyurethane dispersoid is prepared by the following steps: reacting components A) polyisocyanate, B) polyether polyol and/or polyether monohydric alcohol, C) micromolecular dihydric alcohol, D) dyhydroxy carboxylic acid, E) o-carbonyl phenylboronic acid ester compound and F) amino compound to generate a polymer precursor, and then reacting the polymer precursor with G) hydrazide compound to generate an aldehyde/ketone-hydrazine cross-linked polyurethane polymer. And water is introduced to form a waterborne polyurethane dispersion. The self-crosslinking type waterborne polyurethane waterproof coating disclosed by the invention has excellent mechanical properties, low water absorption and heat/acid/alkali resistance, is an environment-friendly polymer waterproof coating, and can be used for waterproofing of outer walls, toilets, kitchens, basements and the like.

The invention discloses a preparation method of medium-chain and long-chain fatty acid edible oil, and relates to the field of edible oil and fat. The preparation method of the medium-chain and long-chain fatty acid edible oil comprises the following steps: step 1, early-stage preparation: vacuumizing and heating a reaction tank so as to remove water; step 2, raw material mixing: uniformly mixing medium-chain fatty acid with glycerol and vegetable fat in a reaction tank to obtain a fat mixture; step 3, esterification reaction: carrying out esterification reaction on the grease mixture in vacuum and at a certain temperature by taking lipase as a catalyst; step 4, refining processing: after the esterification reaction is completed, refining a crude product obtained from a reaction product to obtain a finished product of the medium-chain and long-chain fatty acid edible oil; the main characteristic component of the finished product medium-and-long-chain fatty acid edible oil prepared in the step 4 is medium-and-long-chain fatty glyceride. The preparation method provided by the invention has the characteristics of high reaction efficiency, low raw material price, low energy consumption and the like.