52results about How to "The preparation process is easy to operate" patented technology

The invention discloses a preparation method of a metal-base ceramic composite filter membrane. The method includes steps: firstly, uniformly coating powder on the surface of a porous matrix, and obtaining a porous metal membrane layer by means of sintering; secondly, soaking the porous metal membrane layer into electrolyte to be anodized and obtaining a transition layer; thirdly, adding oxide powder into dispersing agent to obtain coating liquid; fourthly, coating the coating liquid onto the transition layer and sintering the transition layer after the transition layer is dried; and fifthly,repeating the fourth step for a product after being sintered until a porous ceramic filtering membrane with the thickness ranging from 2mum to 80mum is obtained, and obtaining the metal-base ceramic composite filtering membrane. The problem that bonding is not firm enough when metal and ceramic are compounded is resolved, the effective transition layer is formed on the metal matrix, so that a ceramic layer is firmly bonded with the metal matrix, processability of the prepared composite filter membrane is good, and the composite filter membrane can be used for preparing filtering devices in various shapes, simultaneously, has excellent chemical attack resistance, is high in pressure resistance and stable in repeatability, and can be used as a key component for micro-nano filtering and separating.

The invention relates to a making method of a graphene oxide-containing antibiosis and mildew prevention wallpaper, and the antibiosis and mildew prevention wallpaper obtained through the method. The method is characterized in that an antibiosis and mildew prevention agent prepared in the invention is uniformly distributed on a base paper through a sprinkling technology to obtain the antibiosis and mildew prevention wallpaper. Synergism of nanometer graphene oxide, Purpleflower Crotalarla Herb extract and nanometer cerium oxide makes the antibiosis, mildew prevention and peculiar smell removal effects of the wallpaper are substantially improved, the mildew prevention grade is 0 grade, the antibiosis rate to Staphylococcus aureus and Escherichia coli reaches up to 99.9%, and the antibiosis rate to moulds is 100%. The wallpaper does not contain formaldehyde or other toxic substances, so the formaldehyde adsorption effect can reach 98%, improvement of household environment is facilitated, physical and mental pleasant feeling is brought for users, and the use values and the economic benefit of the wallpaper are improved.

The invention relates to a method for ultrasound-assisted fiber surface expanding of nonwoven cloth and loading with nano zinc oxide. The method includes the steps: 1) mixing evenly a cellulose nanocrystal suspension and a zinc salt solution, putting the mixed solution into an ultrasonic generator, and heating in water bath; 2) putting the nonwoven cloth into the mixed solution, carrying out ultrasonic heating for 0.1-3 h at the temperature of 40-100 DEG C, after the reaction is finished, taking out the nonwoven cloth, putting the nonwoven cloth into an alkali liquid, impregnating, then taking out the nonwoven cloth, and drying; and 3) adding ammonia water into a zinc salt solution until the pH of the solution is 10-12, to obtain a zinc ammonia solution; and putting the dried nonwoven cloth into the zinc ammonia solution, carrying out hot and cold alternating impregnation for 1-100 cycles, taking out the nonwoven cloth, and drying to obtain the product. Nano zinc oxide with different topological structures are evenly loaded on the surface of the nonwoven fabric fibers, easy agglomeration, difficult recovery and difficult preparation of pure nano zinc oxide particles are effectively avoided, the whole preparation process has no pollution to the environment, and the method is suitable for industrial scale production.

The invention discloses a preparation method of one-dimensional silicon nanowires with different linear densities. The method includes following steps of, a, preprocessing a silicon chip; b, preparing a one-dimensional silicon nanowire array by means of a metal catalysis etching method; and c, performing postprocessing, wherein the metal catalysis etching method includes two steps of, step one, depositing silver nanoparticles: impregnating the preprocessed silicon chip in an HF-AgNO3 mixed aqueous solution for 20-40 seconds, the concentration of HF is 0.1-0.2 mol / L, and the concentration of AgNO3 is 0.008-0.012 mol / L; and step two, performing metal assisted etching: immersing the silicon chip obtained from the step one into an HF-H2O2 mixed etching solution, and performing etching for 20-40 minutes under a room temperature. According to the preparation method of the one-dimensional silicon nanowires with the different linear densities, the photoelectric properties of the prepared one-dimensional silicon nanowire array are obviously improved in ultraviolet diffuse reflection, photocurrent characteristics and photocatalysis reaction, technological parameters can be adjusted to control shapes and densities of the silicon nanowires, and the preparation method is simple, low in cost and pollution-free.

The invention discloses a method for preparing the sol-gel of Ag(Nb, Ta)O3 (silver tanto-niobate) nano-powder on the basis of the presence of potassium carbonate as a co-solvent. The method comprises the following steps: (1) preparing the citric acid solution of niobium; (2) preparing the citric acid solution of tantalum; (3) preparing the citric acid solution of silver; and (4) preparing the silver tanto-niobate (Ag(Nb, Ta)O3) sol and obtaining the nano-powder. The invention overcomes the defects of the preparing process caused by the existing presence of highly corrosive hydrofluoric acid and the Ag(Nb, Ta)O3 (silver tanto-niobate) ceramic nano-powder with the average particle diameter being 20 to 50 nm can be prepared.

The invention relates to a preparation method of a double-effect oxygen electrode catalyst, in particular to the preparation method of a regenerable fueling battery oxygen electrode catalyst taking Pt as a basis. The method comprises the following steps: directly mixing a certain amount of H2IrCI6 and H2 PtCl6 into an organic solvent; adjusting the proportion of the H2IrCI6 and the H2 PtCl6; dripping the mixture onto a conductive matrix; and preparing an IrO2 Pt efficient catalyst through the thermal decomposition method, thereby not only the oxygen-evolution catalytic activity of the catalyst can be greatly improved, the electric potential can be reduced, and the availability of the catalyst is improved, but also the preparation process is simple, and no impurity enters; the prepared product can also be used for cathodic and anodic catalysts for other fuel batteries and other fields such as gas reforming, organic matter schizolysis, pollutant treatment, seawater electrolysis, and the like.

The invention relates to a preparation method and an application of morelberry effective fractions. The preparation method comprises the following steps of: extracting morelberry; performing chromatography purification techniques through polyamide, macroporous resins, ion exchange resins and the like to obtain a total steroid effective fraction, a general flavone effective fraction and a total organic acid effective fraction; and combining and uniformly mixing one or two or three of three effective fraction extracts to obtain the morelberry effective fractions. A morelberry effective fraction extract disclosed by the invention can be combined with pharmaceutically-acceptable carriers or other proper excipients, is prepared into an oral administration dosage form or a non-oral administration injection or other dosage forms according to the conventional method, and can be applied to preparation of a medicament for preventing and treating diabetes mellitus.

The invention relates to a preparation method of nano ink based on cellulose nanosphere as dispersant and for silk broadcloth printing. The nano ink is characterized by comprising 5-30% of active dyes, 0.5-3% of a surface active agent, 0.3-5% of a dispersant, 1-10% of a moisturizing agent, 0.01-2% of a bactericide, 0.001-2% of a pH buffer and deionized water. The invention uses cellulose nanospheres as the dispersant, so that charged groups on the surface and dye molecules form electrostatic interactions to prepare the highly dispersed nano ink. The preparation process is simple and easy to operate, has no pollution to the environment, and is applicable to industrial production; the prepared ink has the advantages of small controllable size, good storage stability, adjustable viscosity and conductivity, printing fluency, complete chromatogram and bright color.

The invention discloses an imidazoline group-containing benzotriazole derivative, and a synthesis process and application thereof. The synthesis process comprises the following steps: taking benzotriazole as a raw material, and reacting with sodium monochloroacetate / ethyl chloroacetate / ethyl bromoacetate (wherein the reacting yield of the sodium monochloroacetate is highest) to form benzotriazole acetic acid, and performing dehydration and cyclization reaction with diethylenetriamine / triethylenetetramine / tetraethylenepentamine to generate the benzotriazole imidazoline derivative. The reaction conditions are easy to control; and the yield is high. The benzotriazole imidazoline derivative has a good corrosion inhibiting effect on YG8 hard alloy and Q235 low-carbon steel in an acidic water environment.

Lactic acid obtained by a method for producing lactic acid, the method comprising: (A) a step of continuous fermentation wherein a fermentation culture medium of a microorganism having an ability of lactic acid fermentation is filtered through a porous membrane having an average pore size of not less than 0.01 µm and less than 1 µm with a transmembrane pressure difference within the range of 0.1 to 20 kPa, and the permeate is collected, while retaining the non-permeated liquid in or returning the non-permeated liquid to the culture, and adding a fermentation feedstock to the culture; (B) a step of filtering the permeate obtained in Step (A) through a nanofiltration membrane; and (C) a step of distilling the permeate obtained in Step (B) under a pressure of not less than 1 Pa and not more than atmospheric pressure, at 25°C to 200°C to recover lactic acid; comprises only small amounts of impurities, and a polylactic acid obtained using the lactic acid as a raw material has excellent thermal stability, mechanical strength and hue.

The invention relates to an SPF / DB preparation method of a titanium alloy hollow rib structure. The method comprises the following steps that an upper core plate and a lower core plate are cut out, the upper core plate and the lower core plate are made of titanium alloy hollow plates with lattice type solid nodes, each connecting rib strip is of a strip-shaped groove structure, solid nodes are formed at the crossed positions of the connecting ribs, the upper core plate and the lower core plate are oppositely buckled to form the middle core plate, and the strip-shaped groove structures can forma hollow rib structure; two side plates of the titanium alloy hollow structure are machined, and a reinforcing block is machined; and a low-carbon steel ladle sleeve with a block-shaped groove on theinner side surface is machined, a middle core plate which is formed by buckling the upper core plate and the lower core plate, the two side panels and peripheral low-carbon steel ladle sleeves are sequentially stacked and packaged from inside to outside, reinforcing blocks are additionally arranged between the joint of the two side plates and the low-carbon steel ladle sleeves, diffusion connection and superplastic forming are performed to obtain the hollow rib lattice structure, and finally the low-carbon steel ladle sleeves and the reinforcing blocks are removed.

The invention relates to panchromatic fluorescent powder for a white LED (light emitting diode) and a preparation method of the panchromatic fluorescent powder. The preparation method comprises the steps of weighing a certain amount of Tb4O7 to prepare a Tb<3+> solution, recording as a solution A, weighing and adding Sr(NO3)2, Mg(NO3)2-6H2O, H3BO3 and carbamide into the solution A, fully stirring to allow Sr(NO3)2, Mg(NO3)2-6H2O, H3BO3 and carbamide to be dissolved, obtaining a solution B, adding Si(OC2H5)4 into absolute ethyl alcohol to obtain a solution C, adding the solution C into the solution B to form beige sol, naturally cooling to the room temperature after the cooled sol is burnt, obtaining precursor powder, placing the precursor powder into a muffle furnace with a reducing atmosphere, keeping warm for 2-10h, and obtaining the fluorescent powder after cooling. The prepared fluorescent powder is only doped with an active ion, and excited by the active ion to emit white light; the synthesis cost is lower; a preparation technology is simple to operate; crystals grow well; and the dispersity is good.

The invention relates to a preparation method and application of an Aleuritopteris argentea Fee extract. The preparation method includes: extracting Aleuritopteris argentea Fee, then performing high-speed counter-current chromatography, macroporous adsorption resin and other chromatography purification to obtain an Aleuritopteris argentea Fee extract B and an Aleuritopteris argentea Fee extract C, mixing the Aleuritopteris argentea Fee extract B with the Aleuritopteris argentea Fee extract C in certain proportion, thus obtaining the Aleuritopteris argentea Fee extract, which can be combined with a pharmaceutically acceptable carrier or other suitable excipients so as to be prepared into oral medication dosage forms according to conventional methods. The Aleuritopteris argentea Fee extract can be used for preparing drugs for preventing and treating diabetes.

The invention discloses a graphene wear-resistant coating, and belongs to the technical field of new material coatings. The graphene wear-resistant coating is prepared from the following components in percentage by mass: 80 to 70 percent of first component and 20 to 30 percent of second component, wherein the first component is prepared from the following raw materials in percentage by mass: 20 to 35 percent of modified epoxy resin, 0.5 to 5 percent of aid, 0.5 to 4 percent of graphene, 2 to 2.5 percent of adhesive agent, 5 to 8 percent of pigment, 15 to 17 percent of filler, 7 to 9 percent of covering polymer and 20 to 25 percent of solvent; the second component is prepared from 20 to 30 percent of curing agent. By adopting the graphene wear-resistant coating provided by the invention, the friction coefficient and wear rate of the coating are lowered effectively; on the other hand, the graphene has high heat resistance and heat conductivity, so that heat generated in a friction process is dissipated well, and chemical degradation caused by local overheat on the surface of the coating is prevented.

The invention discloses a preparation method of a CdS / Cd2Ge2O6 hetrojunction photocatalyst in response to visible light and belongs to the technical field of environmental pollution control. The preparation method is characterized in that Cd2Ge2O6 and Cd(AC)2.2H2O are prepared by a solvent-thermal method under the condition of a mixed solvent of deionized water and anhydrous alcohol; and then the CdS / Cd2Ge2O6 hetrojunction photocatalyst in response to the visible light is prepared by adopting an ion exchange method and is used for visible light catalytic degradation of methylene blue as a dye pollutant and bisphenol A as an endocrine disruptor. The preparation method has the advantages of simpleness in operation, stable performance, high degradation efficiency, no generation of other pollutants in the preparation process and the like and has very high practical value and an application prospect.

The invention provides a screw-in type pipeline connector. The screw-in type pipeline connector comprises a pressure-bearing joint used for connecting two pipelines and two screw-in type squeezing rings symmetrically arranged on the two sides of the inner surface of the pressure-bearing joint. The pressure-bearing joint is of a tubular symmetrical structure with a middle transition line as the baseline. Circumferential sealing rings and annularly-distributed axial anchoring teeth are arranged on the pressure-bearing joint and are respectively located on the two sides of a middle transition section. Rectangular threads are symmetrically arranged at the two ends of the inner oblique surface of a squeezing groove of the pressure-bearing joint. Rectangular threads matched with the rectangularthreads on the inner oblique surface of the pressure-bearing joint are arranged on the outer surfaces of the screw-in type squeezing rings. The screw-in type pipeline connector is simple in structureand capable of realizing connection of submarine pipelines and broken pipelines rapidly and reliably.

The invention relates to the field of Chinese herbal preparations and particularly relates to a rhizoma alismatis dropping pill and a preparation method thereof. The technical scheme is as follows: the invention provides the preparation method of the rhizoma alismatis dropping pill, and the method comprises the following steps of: 1, smashing a rhizoma alismatis raw material, extracting the raw material by using ethanol, absorbing the raw material by using macroporous adsorption resin, eluting the raw material by using ethanol, carrying out vacuum concentration until the raw material becomes an extract to obtain a rhizoma alismatis extract, and mixing the rhizoma alismatis extract with a matrix to form a mixture A, wherein the matrix is polyethylene glycol 4000 or polyethylene glycol 6000 or a mixture of the polyethylene glycol 4000 and the polyethylene glycol 6000, and the weight ratio of the rhizoma alismatis raw material to the matrix is 1:4; and 2, heating the mixture A in the step 1 to obtain rhizoma alismatis extract and matrix contained meltwater, uniformly mixing the meltwater, and placing the meltwater on a pill dropping machine for preparing the dropping pill. The prepared rhizoma alismatis dropping pill has the beneficial effects of rapid curative effect, high bioavailability, convenience and simplicity in operation of the preparation process, easiness for controlling the process condition and stable quality.

The invention discloses a spherical graphene / FePO4 composite and a preparing method thereof. The preparing method includes the following steps of (1) preparing an aqueous solution of ferric salt and a phosphorous compound; 2, adding the aqueous solution and an alkaline solution into a reactor kettle in a parallel-flow mode, keeping the pH being 2-4 and the temperature being 20-90 DEG C, and obtaining primary-growth graphene / FePO4.2H2O; 3, concentrating and dispersing the prepared primary-growth graphene / FePO4.2H2O into the reaction kettle, repeating operation in the step 2, and obtaining a secondary-growth spherical graphene / FePO4.2H2O composite through suction filtration, washing and drying; 4, sintering the prepared secondary-growth graphene / FePO4.2H2O composite under inert gas to obtain the spherical graphene / FePO4 composite. According to the spherical graphene / FePO4 composite and the preparing method, graphene is directly introduced into preparing of FePO4, and particles of the prepared spherical graphene / FePO4 composite are regular in shape, even in granularity and high in tap density. The whole preparing technology is rapid and convenient to operate, and the spherical graphene / FePO4 composite and the preparing method are of great application significance in preparing of a graphene / lithium iron phosphate composite.

The invention relates to waterborne weather-resisting anticorrosive coating and a preparation method thereof and relates to the field of waterborne anticorrosive coating. The coating is prepared by uniformly mixing and stirring a resin component and an isocyanato curing agent component, wherein the resin component contains fluorocarbon resin, and the ratio of the hydroxyl mol number of the fluorocarbon resin to the isocyanato mol number of the isocyanato curing agent component is 1 to (1.02 to 1.05); the resin component also contains graphene powder which accounts for 0.1 to 5.0 percent of thetotal weight of the coating; the coating can be used for effectively improving the water resistance, acid resistance, alkali resistance, temperature and heat resistance, salt mist resistance and weather resistance of a whole body, so that the safe, green, environment-friendly and pollution-free utilization requirements on the coating in the market can be effectively met.

The invention provides a quaternary ammonium salt compound disinfectant and a preparation method thereof, which belong to the technical field of disinfectants. A compound synergistic principle is adopted, benzalkonium chloride and polyhexamethylene biguanide which belong to the same cationic surfactant are compounded into a compound disinfectant, strong electropositivity is generated by ionizationin an aqueous solution, bacteria and viruses with negative charges can be adsorbed, and coconut oil fatty acid diethanolamide and glycerol are cooperatively used, positive charges ionized by benzalkonium chloride and polyhexamethylene biguanide are promoted to penetrate through cell walls, so that bacteria and viruses can be killed, and great danger to the safety of people and influence on the environment are avoided. The quaternary ammonium salt compound disinfectant provided by the invention has the advantages of easily available raw materials, easily operated preparation process, low production cost, no corrosion to human and object surfaces, no odor, no toxicity, environmental protection and convenient use, and is an ideal disinfectant.

The invention discloses a mechanical maintenance tool box, which belongs to the field of mechanical maintenance tools, and includes a box body, a box cover, a first-level inner layer, a second-level inner layer, a tool groove, rollers, a first connecting rod, a second connecting rod, a third connecting rod, fixed column, handle; one end of the first connecting rod is fixed on the fixed column on the side elevation of the first-level inner layer, and the other end is connected with the side elevation of the box through the fixed column, and the second connecting rod The upper end of the rod is connected with the second-level inner layer, the middle part is connected with the first-level inner layer, the bottom is connected with the box body, the upper end of the third connecting rod is connected with the second-level inner layer, the middle part is connected with the first-level inner layer, and the bottom is connected with the box body. The cover is connected, the first-level inner layer and the second-level inner layer are equipped with tool grooves, the rollers are set at the bottom of the box, and the handle is set on the upper end of the box. The invention is novel and unique, increasing the internal capacity , more maintenance tools can be placed, which is convenient for the overall movement of the toolbox, and the staff saves time and effort when using it.

The invention relates to a fatty acid derivative containing an imidazoline group and a synthesis process and the application of the fatty acid derivative. The fatty acid derivative is synthesized by taking 6-aminocaproic acid as a raw material, reacting with diethylenetriamine / triethylene tetramine / tetraethylenepentamine, and using xylene as an azeotropic agent, wherein the synthesis product mainly comprises diethylenetriamine imidazoline / triethylene tetramine imidazoline / tetraethylenepentamine imidazoline. The operation is simple, the yield is high, and the reaction condition is easy to control. The fatty acid imidazoline derivative of the product can be used to prepare a water-based lubricant, a corrosion inhibitor and the like.

The invention discloses a preparation method of quinine hydrochloride. The method of the invention comprises the following steps: transforming quinine sulfate to quinine, then dispersing the quinine into a dispersing agent, adding hydrochloric acid or introducing hydrogen chloride gas to react, and the quinine hydrochloride is obtained through the method of crystallization. Only the common acids and bases, and the common solvents with low toxicity and low price are used in the method of the invention, and the chemical reagents with high toxicity are not used. The method has high yield which is same as or close to the theoretical yield, and the yield can reach 110 to 115% measured in terms of the quinine. Further, the method is environmentally friendly. The whole preparation process of theinvention has simple and convenient operation and low cost, and is beneficial to the production amplification.

The invention discloses a traditional Chinese medicine composition for treating nephritis, and belongs to the technical field of medicines. The medicine composition is prepared from the following components: corn silk, cherokee rose fruit, herba houttuyniae, spreading hedyotis herb, lily, Chinese wolfberry, Chinese-date, peach kernel, eucommia, lalang grass rhizome, shizandra berry, white mulberry root-bark, black soybean, and liquorice. The traditional Chinese medicine composition has an excellent curative effect on treating or preventing the acute nephritis, and the medicine side effect is low, so that the traditional Chinese medicine composition has a remarkable clinical promotional value.

The invention discloses an additive solution for a cooling system as well as a preparation method and a use method of the additive solution. The additive solution comprises the following components inpercentage by mass: 30-65% of an alcohol solvent, 1-5% of a composite additive and 30-69% of deionized water, the preparation method comprises the following steps: respectively adding the alcohol solvent and the deionized water in percentage by mass, uniformly stirring, adding the composite additive, and uniformly mixing; the use method comprises the following steps: detecting the pH value of thecooling liquid, judging whether the cooling liquid is invalid or not, detecting whether the cooling water tank is damaged and leaks or not, opening the water tank cover in the cooling state of the engine, adding the additive liquid to a specified liquid level scale, finally starting the engine to heat the vehicle, and continuing to supplement the additive liquid if the liquid level is reduced. The cooling system additive solution provided by the invention is good in corrosion inhibition effect and storage stability, not only can prolong the service life of the original vehicle cooling liquidand save social resources and maintenance cost, but also can effectively enhance the anti-corrosion, anti-freezing, anti-boiling and anti-scaling properties and the like of the original vehicle cooling liquid.

The invention discloses a novel efficient sterilization mask and a preparation method thereof. The novel efficient sterilization mask comprises an outer protective layer, a middle filter layer and aninner skin-friendly layer, and a radix isatidis traditional Chinese medicine powder layer is arranged on the outer surface of the middle filter layer. The outer protective layer is a non-woven fabriclayer, the middle filter layer is a melt-blown part layer, and the inner skin-friendly layer is a non-woven fabric layer. The preparation method of the novel efficient sterilization mask comprises thefollowing steps: 1) preparing single traditional Chinese medicines; 2) uniformly coating the traditional Chinese medicine powder on the outer layer of the middle filter layer; and 3) sewing mask. Theradix isatidis immersion liquid can kill or inhibit various bacteria and viruses such as bacillus subtilis, octococcus, paratyphoid bacillus, (shigella, Freund) bacillus, enteritis bacillus, meningococcus A, leptospira, influenza virus and the like in vitro, and has a broad-spectrum microorganism killing effect. The radix isatidis also has the effect of enhancing the immunity of a human body andimproving the disease resistance of the human body.

The invention relates to a preparation method for catalyst for removing NOx, and belongs to the technical field of catalyst preparation. The preparation method comprises the following steps of: firstly, preparing a metal salt solution, then, enabling a carrier to stand in the salt solution to be dipped, taking out the carrier to be processed and dried, coating the carrier with molecular sieve material slurry which realizes a synergistic effect with the metal salt, drying and ageing the coated carrier, and finally, drying and roasting the carrier to obtain NOx catalyst. When the preparation method disclosed by the invention is adopted to prepare the catalyst for removing NOx, the preparation technology of the preparation method is simple and easy in operation, resources are saved, and the content of active ingredients can be more easily controlled.

The invention discloses an environment-friendly rustproof powder coating. The environment-friendly rustproof powder coating is prepared from, by weight, 55-105 parts of GMA type acrylic resin, 45-110 parts of epoxy resin, 18-68 parts of absolute ethyl alcohol, 28-58 parts of linseed oil, 200-400 parts of methylbenzene solutions, 5-10 parts of titanium dioxide, 3-10 parts of degassing agents, 2-8 parts of flexibilizer and 1-15 parts of flatting agents. The environment-friendly rustproof powder coating in the technical scheme is high in purity and large in adhesive force, both the powder coating and the coating production process are free of three-waste pollution, and therefore the environment-friendly effect is good; the powder coating can be recovered and coated for the second time and is resistant to acid, alkali and abrasion and waterproof, and a rustproof film is smooth, long in service life and good in rustproof capacity.

The invention discloses a high-efficiency adsorbent based on Lechang Michelia leaves and a preparation method thereof. The adsorbent is a product obtained by simple alkali washing, water washing, and alkali modification using Lechang Michelia leaves as raw materials. The adsorbent of the invention has excellent adsorption effect on various cationic dyes such as methylene blue, rhodamine B, malachite green and crystal violet, and has a high adsorption rate, and can be used for the adsorption of organic dye pollutants in sewage. Compared with the prior art, the adsorbent of the present invention uses agricultural and forestry wastes as raw materials, obtains products through simple and feasible treatment methods, realizes the goal of treating waste with waste, and has the advantages of environmental protection, low energy consumption, and high efficiency. Suitable for industrial production.

The invention discloses a polyvinyl chloride injection molding pipe, which is composed of the following components in parts by weight: PVC resin 30-70 parts; active light calcium 10-15 parts; iodine tincture 4-5 parts; lithopone 2-4 parts; sorbitol 0.4-0.6 parts ; Stearic acid 5-12; Triphenyl phosphate 3-5; Cyclohexanone 1-5; Industrial paraffin 5-10; Wood fiber 10-20. The present invention replaces the traditional plastic-based injection molding material with a new type of wood injection molding material that is recyclable, environmentally friendly, and has no harm to the human body. Leftovers, etc.), can greatly reduce the use of plastics and change the singleness of injection molding materials. At the same time, the products made have strong stability, no shrinkage and deformation, and can be recycled repeatedly.