2008results about How to "Materials are readily available" patented technology

The invention discloses postoperation anti-adhesion hydrogel and a preparing method thereof. The hydrogel is prepared from sodium alginate powder, chitosan powder, acrylamide monomers, N,N'-methylene bisacrylamide, calcium sulfate, ammonium persulfate and N,N,N',N'-tetramethylethylenediamine. The preparing method of the high-strength high-tenacity chitosan and sodium alginate compound hydrogel is easy to operate, parameters are controllable, the materials are easy to obtain, and the solvent is nontoxic or low in toxicity and safe to treat and use; the method integrates advantages of the two natural biological materials, and the requirement for postoperation adhesion prevention of patients and the requirement for nursing care and treatment of medical workers can be met well. The hydrogel is soft, can be attached to the skin easily, has good flexibility and can effectively prevent wound surface adhesion and be degraded and absorbed, secondary trauma is avoided, and the hydrogel is expected to become a novel postoperation anti-adhesion material.

The invention discloses a temperature-sensitive color-changing paint dyeing technology of textile fabrics. The process flow is as follows: selection and composition of the temperature-sensitive color-changing paint; preparation of temperature-sensitive color-changing dye microcapsules; preparation and dyeing of a temperature-sensitive color-changing pigment printing paste, dehydration, and baking to obtain a temperature-sensitive color-changing fabric. The textile fabric is a fabric which is prepared by pretreatment of cotton, Tencel fiber, modal fiber, chemical fibre blended cotton (lanca, polyester cotton and nylon cotton), silk, wool and the like. Through combined actions of ambient temperature, temperature inside clothes and body temperature, the color of the temperature-sensitive color-changing textile obtained by the application of the dyeing technology changes when the surface temperature of the textile achieves or exceeds color-changing temperature; and when the temperature drops below the color-changing temperature, the textile turns to the original color. With the change of the temperature, the textile fabric shows unexpected color and pattern, and the pattern will change based on movement of the body. The color-changing fabric can be widely applied in T-shirt, trousers, swimsuit, casual gym suit, working clothes, children's clothing, curtain, toy and the like.

The invention discloses a method for culturing rare edible fungi including tricholoma lobayense heim and clitocybe maxima by using vine shoot dust. The method comprises the following steps of: A, preparation of a fermentation culture solution; B, preparation of liquid spawn; C, preparation of granular spawn; D, preparation of a culture medium: selecting 68-72 percent of vine shoot dust, 8-12 percent of cotton seed hull, 8-12 percent of broken dry broad-leaved tree fallen leaves, 8 percent of bran, 1 percent of sucrose and 1 percent of calcined lime in a weight ratio, stirring in a material-water ratio of 1:1.4, bagging, performing conventional sealing, and sterilizing for later use; E, inoculating culture; and F, harvesting. The vine shoot is treated and developed into a raw material for culturing the rare edible fungi including the tricholoma lobayense heim and the clitocybe maxima, a natural culture medium is provided for the fungi culture industry, the biotransformation utilization of the vine shoot is realized, and the culture costs of the tricholoma lobayense heim and the clitocybe maxima are reduced.

The invention relates to an air purifying agent which comprises the following raw materials by mass: kieselguhr powder, zeolite powder, medical stone powder, tourmaline powder, activated carbon power, sepiolite powder and titanium dioxide powder. The air purifying agent is prepared by the steps of (1) mixing the kieselguhr powder, the zeolite powder, the medical stone powder, the tourmaline powder, the activated carbon power, the sepiolite powder and the titanium dioxide powder; (2) granulating a mixture obtained in the step (1); and (3) drying the granulated mixture obtained in the step (2). The air purifying agent disclosed by the invention is large in specific surface area and uniform, has a good effect for adsorbing and decomposing harmful substances in air and is an ideal selected material suitable for environment purification in closed spaces such as a room and an automobile and for various air purifiers.

The invention discloses cat litter utilizing clumping wood flour and waste residues. The cat litter comprises raw material constituents by percentage. The raw material constituents comprises 45-55% of pine wood flour, 10-15% of coal cinder, 8-12% of blast furnace slag, 5-10% of super absorbent resin and 5-15% of starch. The cat litter uses the waste residues with high water absorbing quality to substitute a part of wood flour to greatly reduce the phenomenon that wood flour cat litter absorbs water and is prone to being rotten. Furthermore, the materials are easy to obtain and low in cost. A new way is provided for utilization of coal cinder, blast furnace slag and dry soybean curd residue, discharging of the waste residues is reduced, and good ecological benefits and economical benefits can be achieved.

The invention discloses a capillary needle. The capillary needle comprises a tube body, the two ends of the tube body are respectively provided with an inlet and an outlet for electro-spray, a part of the tube body is bent to form a sampling end, and the sampling end is provided with a sampling port communicating with a cavity in the tube body. The invention also discloses an electro-spray ionization mass spectrometry analytical apparatus applying the capillary needle. The invention also simultaneously discloses a method applying the electro-spray ionization mass spectrometry analytical apparatus for analytical detection. The analytical apparatus is high in integration, compact in structure, easy to control, small in size and low in cost; the sample consumption is greatly reduced, and the experiment cost is decreased; an integrated sample introduction method is employed, and an sample introduction end does not have to be repeatedly placed in a sample and blank solution, such that cross contamination is reduced, and more importantly, the analytical flux is substantially improved; and through combination with an automatic sample changing system, different samples can be automatically introduced, and therefore, the capillary needle, the apparatus and the method are quite suitable for such fields as high-flux screening, unicell analysis, mass spectrum imaging analysis and the like.

The invention relates to a solar cell back panel film and a preparation method thereof. The solar cell back panel film is characterized in that the two sides of a polyester base layer are composited with wear-resistant layers by coating adhesive bonding layers; the wear-resistant layers are fluorine-containing films prepared by mixing fluorine plastic with polymer fillers, inorganic fillers and functional auxiliaries, then extruding and granulating the mixture and then carrying out casting or film blowing; the fluorine plastic is an ethylene-chlorotrifluoroethylene copolymer or polyvinylidene fluoride and accounts for 50-80wt% of the wear-resistant layers; the polymer fillers are polyacrylic ester polymers and account for 10-30wt% of the wear-resistant layers; the inorganic fillers are oxides containing titanium, aluminium, tin and silicon and account for 10-20wt% of the wear-resistant layers; and the functional auxiliaries account for 0-2wt% of the wear-resistant layers. The solar cell back panel film has the following beneficial effects that good adhesiveness is ensured between the wear-resistant layers and packaging materials; and the back panel film has tight structure, less production processes and low cost.

The invention provides umbilical cord mesenchymal stem cell injection as well as a preparation method and application thereof. The umbilical cord mesenchymal stem cell injection comprises mesenchymal stem cells and a frozen stock solution, wherein the frozen stock solution comprises the following components: a balanced electrolyte solution with the volume percentage of 25-70 percent, hydroxyethyl starch 130/0.4 with the mass/volume percentage (g/ml) of 1-10 percent, triphosadenine disodium magnesium chloride with the volume percentage of 5-20 percent, clinical-grade DMSO with the volume percentage of 5-20% and 20% human albumin with the volume percentage of 1-50 percent. The prepared umbilical cord mesenchymal stem cell injection is free of animal serum, safe, high in cell viability after cryopreservation resuscitation, can be used for treating inflammatory bowel disease, has a good effect and has no toxic or side effects.

The invention provides a method for trapping and collecting wild hermetia illucens by utilizing chrysomyia megacephala maggot cultivation residues. Specifically, bran and spray-dried animal blood cells are utilized to breed chrysomyia megacephala maggots firstly, then the chrysomyia megacephala maggot cultivation residues are utilized to trap and collect the wild hermetia illucens. According to the method, the suitable period for trapping and collecting the wild hermetia illucens ranges from April to October at the air temperature from 23 DEG C to 35 DEG C on clear and rainless days. The method is quite obvious in the effects of trapping and collecting the hermetia illucens, especially the lysine richly contained in the spray-dried animal blood cells is easily broken into cadaverine and other substances with strong stimulating smell under the action of the chrysomyia megacephala maggots and natural microorganism, the cadaverine and other substances with strong stimulating smell have an extremely strong effect of inducing adult hermetia illucens to lay eggs, and after the eggs of the wild hermetia illucens are hatched and grow under normal temperature, a great quantity of hermetia illucen larva resources can be obtained in a short time. The method is simple, convenient to operate, effective and capable of greatly saving manpower and time for obtaining the wild hermetia illucen larva resources.

The invention discloses a graphene dye sensitized solar cell and a production method thereof. The solar cell comprises a light anode comprising transparent upper base material and graphene conducting layer, a porous nano semiconductor film and a dye sensitizer, oxidation reduction electrolyte solution, a counter electrode comprising a lower base and graphene conducting layer and a composite catalytic layer as well as a film shell. The production method comprises the steps of preparing the light anode, preparing the counter electrode, encapsulating and injecting the electrolyte solution. In the invention, graphene with an available raw material, low cost, good conductive performance, extremely high flexibility and good ductibility is adopted as the conducting layer, the flexible transparent material is adopted as a substrate, and platinum metal particles are embedded on the graphene conducting layer of the counter electrode by adopting adsorption instead of magnetron sputtering to form the composite catalytic layer. Thus, the invention has the characteristics that the raw material is available, the production cost is low, the production process is simple and reliable, the flexible solar cell can be produced and applied to the flexible field, and the application range is effectively expanded.

The invention relates to a pulp repair method of ancient book, painting and calligraphy, which comprises: 1, according to the material of repaired book, painting and calligraphy, selecting pulp material, and adding the raw paper of selected pulp material into mixer, adding water and suspending agent, to mix and break uniformly; the mass ratios between raw paper, suspending agent, and water are: raw paper in 5-20; suspending agent in 5-15; and water in 500-1000, while the mixing time is 30-90s, then getting out the pulp; 2, spreading the book, painting and calligraphy on the repair support that made from paper shade; filling prepared pulp into repair pen to repair them that dropping pulp into the damaged part to use the combine force generated when the pulp becomes paper, the interlace force of fiber, and the adhesive function of suspending agent to complete said process; 3, removing repaired book, painting and calligraphy from the repair support, to be laid on the water-adsorption paper, to be dried.

The invention relates to an alarm escape indication system and method, particularly to an intelligent automatic fire alarm escape indication system and method thereof. The system is composed of intelligent terminal equipment, an intelligent smoke detector, an intelligent heat detector, manual alarm equipment, an intelligent fire automatic alarm escape controller, and a remote firefighting monitoring center. According to the method, the intelligent smoke detector and the intelligent heat detector detect that the smoke concentration or temperature reaches an alarm value, an alarm signal is sent out and transmit fire information to the intelligent fire automatic alarm escape controller; the controller calculates escape and self-rescue guide information; the information is displayed and broadcasted to the intelligent terminal equipment by an Wi-Fi unit and is also transmitted to the remote firefighting monitoring center simultaneously; and the remote firefighting monitoring center organizes multiple units instantly to rush to the spot so as to carry out rescue or evacuation. According to the invention, the intelligent degree is high; functions of infinite long-distance fire-proof alarm, linked rescue, intelligent escape and evacuation, network service, and wireless internet access service are realized; the system is simple; the cost is low; the operation is convenient; and the system and method can be popularized and used conveniently.

The invention provides a multifunctional ordered medicine release medical coating film for acute trauma and a preparation method thereof. The multifunctional ordered medicine release medical coating film for acute trauma is characterized by comprising fiber formed through coaxial static spinning; the fiber comprises a bleeding stopping and pain relieving layer and an anti-bacterial healing promotion layer arranged in the bleeding stopping and pain relieving layer; the bleeding stopping and pain relieving layer comprises one or several kinds of materials from high molecular polymers, bleeding stopping factors dispersed into the high molecular polymers and pain relieving medicine; the anti-bacterial healing promotion layer comprises high molecular polymers, antibacterial medicine dispersed in the natural high molecular polymers, and mesoporous SiO2 particles loaded with bioactive factors. The preparation method is simple; the materials can be easily obtained; the treatment and the use are safe; the prepared multifunctional ordered medicine release medical coating film can be matched with different stages of the wound healing; the medicine or active substances required for wound healing can be timely and orderly released.

The invention discloses a quasi ecological planting method of dendrobium officinale. The method comprises the following steps of: (1) drilling small holes at a part between two bamboo joints of a live bamboo; (2) taking the fillings such as mosses or sawdusts as a culture medium and filling the culture medium in the cavity of the bamboo through the small holes; (3) planting the seedling of the dendrobium officinale on the culture medium in the cavity of the bamboo through the small holes opened in the step (1); (4) applying a leaf fertilizer once per month; (5) performing a first harvesting, wherein the time from planting to harvesting is 18 months, leaving seedlings more than 3 cm high on the bamboo while harvesting; (6) performing harvesting once in each year for five years; and then planting the new seedlings. The materials used in the quasi ecological planting method of dendrobium officinale are easy to obtain, the yield in each mu of farmland can reach 200-300 kg per year; thus the quasi ecological planting method of dendrobium officinale is suitable for planting dendrobium officinale in tropical and subtropical regions.

The invention relates to antistaling agents for fresh kiwi fruit slices, fresh-keeping products and a fresh-keeping method, wherein the antistaling agents comprise a cleaning agent and a color-protection agent; the fresh-keeping products contain a cleaning agent, a color-protection agent, N2 and polyethylene fresh-keeping bags; and the fresh-keeping method, which comprises steps of selection of kiwi fruits, fresh slice cut pretreatment, cleaning treatment, color-protection treatment and N2-charging fresh-keeping treatment, maintains the nutrient composition and freshness of the peeled fresh kiwi fruit slices within a certain amount of time.

The invention relates to a novel solar battery backboard. The novel solar battery backboard comprises a weather resistant layer, a bonding layer and an insulation layer bonded in sequence, wherein the weather resistant layer consists of the following components by weight: 40-80 parts of fluorine-containing polymer, 5-30 parts of acrylic acid polymer, 5-20 parts of inorganic filler and 5-15 parts of maleic anhydride grafted ethylene-vinyl acetate copolymer; and the insulation layer consists of the following components by weight: 70-90 parts of polyethylene glycol terephthalate, 1-20 parts of polytetrafluoroethylene micro-powder and 5-20 parts of uvioresistant additive. The novel solar battery backboard is novel in structure, easily available in material and low in cost; and the interlayer bonding strength is enhanced, the weather resistance is improved and the service life of a solar assembly is prolonged.