65results about How to "Stable network structure" patented technology

The invention relates to the technical field of concrete preparation, in particular to fiber-reinforced building solid waste recycled aggregate concrete and a preparation method thereof.The preparation method comprises the following preparation steps that S1, recycled coarse aggregate, slag, fly ash and river sand are mixed and stirred according to the proportion, and a cement mixture is obtained; s2, calcining the cement mixture for 2-3 hours to obtain cement clinker; s3, cement clinker, modified fibers, modified graphene oxide and tetrasodium iminodisuccinate are mixed according to the proportion and then poured into a stirrer to be stirred for 5-6 min; and S4, adding water into the stirrer according to the proportion, continuously stirring for 6-10 minutes, and taking out to obtain the fiber-reinforced building solid waste recycled aggregate concrete. According to the invention, the polystyrene fiber and the concrete are connected more tightly by using the modified fiber, and the polystyrene fiber can be subjected to multiple reactions with components in the concrete in an alkaline environment of the concrete to form a stable network structure, so that mechanical indexes such as crack resistance and breaking strength of the concrete are improved.

The invention discloses a flame-retardant semi-solid gel electrolyte and a preparation method thereof, and the flame-retardant semi-solid gel electrolyte comprises the following raw materials in parts by weight: 100-120 parts of PVDF resin, 25-30 parts of PPC resin, 5-10 parts of modified hollow ceramic fiber, 3-5 parts of modified nano aluminum hydroxide, 15-20 parts of an organic solvent, and 4-6 parts of a conductive agent. The modified hollow ceramic fiber is a Li0. 5La0. 5TiO3 hollow ceramic fiber subjected to surface grafting modification by 3-aminopropyltrimethoxysilane, the modified nano aluminum hydroxide is an antioxidant flame retardant grafted modified nano aluminum hydroxide, and the antioxidant flame retardant is a triazine derivative containing a hindered phenol structure and a DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) structure. According to the flame-retardant semi-solid gel electrolyte disclosed by the invention, the gel strength of the flame-retardant semi-solid gel electrolyte is improved, meanwhile, the ionic conductivity of the flame-retardant semi-solid gel electrolyte is improved, and the flame-retardant property and the thermal stability of the flame-retardant semi-solid gel electrolyte are improved by adding the modified nano aluminum hydroxide.

The present invention relates to the technical field of power cable manufacturing, and discloses a low-smoke halogen-free flame-retardant polyolefin sheathed power cable. The power cable outer sheath composite material comprises the following raw materials: metallocene linear low-density polyethylene, ethylene-vinyl acetate copolymer, high-density polyethylene, flame-retardant additives, high-temperature resistant components, antioxidants, cross-linking agents, and lubricants; by improving the flame retardant and high-temperature resistant properties of the polyethylene material, the prepared power cable has excellent mechanical properties, toughness, flame retardant properties, and high-temperature resistant properties, can work continuously and stably in a high-temperature environment, reduce the occurrence of fire accidents, and effectively prevent the spread of fire even in the event of a fire, and does not generate toxic hydrogen halide gas and thick smoke during combustion.

The invention relates to the technical field of rubber, and discloses low-temperature-resistant rare earth butadiene rubber and a preparation method thereof. Phosphorus-containing quaternary ammonium salt modified polyurethane, polyethoxylene ether modified phenolic resin, rare earth butadiene rubber and sulfur are added into an internal mixer to be mixed and then vulcanized, and the low-temperature-resistant rare earth butadiene rubber is obtained. In the phosphorus-containing quaternary ammonium salt modified polyurethane, silicon-oxygen bonds enable the rubber to maintain stability at low temperature, so that the low-temperature-resistant effect of the rubber is improved; polyurethane and a rubber molecular chain form an interpenetrating polymer network, so that the mechanical property of the rubber is improved; due to the soft segment chain of polyurethane, the rubber has better toughness at low temperature, and the low temperature resistance of the rubber is improved; an ether bond in polyoxyethylene ether has flexibility and stability, so that the rubber is not easy to crystallize or cure at low temperature; phosphorus, silicon and sulfur elements are used together to generate a synergistic flame-retardant effect, so that the flame retardance of the rubber is improved; the phenolic resin plays a reinforcing role in the rubber, so that the mechanical property of the rubber is improved.

The invention relates to an electrode adhesive as well as a preparation method and application thereof. The electrode adhesive comprises a water-soluble high-molecular polymer and an amino-containing polymer, the water-soluble high-molecular polymer is obtained by sequentially carrying out polymerization reaction and alcoholysis reaction on monomers; the monomers comprise a type I monomer, a type II monomer and a type III monomer; the monomer I comprises vinyl acetate and / or vinyl propionate; the monomer II comprises methacrylate containing short-chain alkane and / or acrylate containing short-chain alkane; and the III type monomer contains cyano groups. The electrode adhesive provided by the invention has good adhesive property, flexibility and temperature stability, is resistant to electrolyte swelling, and is suitable for an electrode material of a lithium ion battery.

The invention belongs to the technical field of perovskite solar cell interface modification, and particularly provides a perovskite passivation material, a passivation unit and a perovskite cell. The perovskite passivation material provided by the invention comprises a vinyl thiophene compound. According to the invention, the perovskite layer is passivated and modified through the vinyl thiophene compound, and the passivation layer has a good passivation effect and effectively passivates defects in the perovskite layer; and high stability is achieved, the long-term effectiveness of the passivation layer is guaranteed, and the passivation effect can be stably kept for a long time. The passivation layer can greatly improve the photoelectric conversion efficiency of the device, and provides powerful support for the development of the fields of perovskite solar cells and the like.

The invention provides modified porous ecological concrete. The modified porous ecological concrete is prepared from the following components: 180 to 220 parts of coarse aggregate, 45 to 55 parts of sulphoaluminate cement, 5 to 10 parts of modified diatomite, 4 to 8 parts of modified porous ceramsite, 5 to 10 parts of modified fiber, 2 to 4 parts of water reducing agent, 1 to 3 parts of retarder and 20 to 40 parts of water. The modified porous ecological concrete with high strength and low alkalinity is obtained by taking coarse aggregate and sulphoaluminate cement as main bodies and adding modified diatomite, modified porous ceramsite, modified fiber components and the like, and when the modified porous ecological concrete is applied to slope protection engineering, the mechanical strength of the concrete and the growth effect of planted grass are good.

The invention relates to a water-based photoresist stripping liquid for a display panel as well as a preparation method and application of the water-based photoresist stripping liquid. The water-based photoresist stripping liquid for the display panel comprises the following components in parts by weight, 0.1 to 0.5 part of a composite functional agent; 15 to 25 parts of organic amine; 10-20 parts of a polar solvent; 1-5 parts of a metal resist; and 30-50 parts of ultrapure water. An electron-rich water-soluble compound in the composite functional agent and an oxidation group of graphene oxide react through static electricity or hydrogen bonds to form a stable network structure, so that molecules are connected more tightly in a solution, the overall stability of the aqueous photoresist stripping liquid is better maintained, and the stripping efficiency of the aqueous photoresist stripping liquid is improved. The effects of reducing the volatilization of other components in the water-based photoresist stripping liquid and reducing the operation risk in the manufacturing process are achieved, and the service life of the water-based stripping liquid is prolonged.

The invention relates to a waterproof anti-cracking composite coiled material and a preparation method and application thereof. The composite coiled material comprises a paper base layer and a waterproof coating coated on the surface of the paper base layer, and the waterproof coating is formed by curing a waterproof finishing agent. The waterproof finishing agent comprises the following raw materials in parts by mass: 60-75 parts of epoxy resin, 2-5 parts of a hardening agent, 5-20 parts of rubber particles, 8-15 parts of modified bacterial cellulose, 20-30 parts of polylactic acid, 10-20 parts of polyethylene glycol and 5-10 parts of a silane coupling agent. The composite coiled material can serve as a decorative material to be attached to the surface of furniture, and due to the good flexibility, crack resistance and tensile effect, the technical problems that when traditional furniture decorative paper is attached, corners are prone to being bent and broken, and the waterproof performance is poor are solved.

The invention belongs to the technical field of modified xanthan gum, and provides high-temperature-resistant xanthan gum and a preparation method thereof. The xanthan gum is subjected to chemical crosslinking and graft polymer joint modification, so that covalent bond combination among molecules can be enhanced, the rigidity of a molecular chain is increased, the structural integrity of the material is improved, and the high-temperature resistance of the xanthan gum is remarkably improved; by introducing the inorganic nano-material modified by polar groups and chemical vapor deposition, the heat resistance of the xanthan gum is improved, and the structural stability of the xanthan gum at high temperature is also improved. In addition, due to the addition of the high-temperature-resistant polymer, especially the polymer subjected to ultraviolet irradiation and amino modification, the high-temperature resistance of the material is further enhanced. The heat resistance of the xanthan gum is effectively improved, so that the xanthan gum shows excellent performance stability in a high-temperature environment, and more industrial application requirements are met.

The present invention relates to a package substrate solder resist dry film and a preparation method thereof, wherein the package substrate solder resist dry film comprises the following components by mass: 10-20 parts of acrylic resin, 1-10 parts of active monomer, 5-15 parts of modified polyacrylate, 10-20 parts of epoxy resin, 5-15 parts of filler, 1-10 parts of auxiliary agent, and 20-60 parts of solvent; wherein the modified polyacrylate is obtained by reacting polysaccharide, acrylic anhydride, and phenyl acrylate. The present invention adopts modified polyacrylate to compound with epoxy resin, acrylic resin, filler and other components, thereby improving the strength, adhesion and stability of the dry film, being able to be stably used for a long time under various conditions, providing a protection function for the circuit, and having good application prospects.

The invention discloses special steel sand for a 3D printing metal casting mold and a preparation method of the special steel sand, belongs to the technical field of steel sand processing, and aims to solve the technical problems of poor dimensional stability of a sand mold at a high temperature and poor collapsibility of the sand mold added with the steel sand due to thermal expansion coefficient difference between the steel sand and standard sand in the prior art. The method comprises the following steps that steel grit, absolute ethyl alcohol and KH-560 are added into a reaction kettle to be stirred, the temperature of the reaction kettle is increased to 50-55 DEG C, and a sodium hydroxide solution is added into the reaction kettle. After the element composition and particle size distribution of the steel grit are optimized and the steel grit is subjected to surface modification, the modified steel grit is enhanced by using a mixed modification solution, and the strength of the steel grit is improved; and special steel sand is prepared and mixed with standard sand for 3D sand mold printing, so that the normal-temperature compressive strength and dimensional stability of the sand mold are effectively enhanced, and the collapsibility of the sand mold is also improved.

This application relates to an 8B cold-rolled precision steel strip and its manufacturing method, comprising a steel strip body and a high-strength coating. The high-strength coating is formed by applying a high-strength coating material to the surface of the steel strip body. The high-strength coating material comprises the following components in parts by weight: 85-105 parts resin matrix, 13-17 parts graphene dispersion system, 6-8 parts nano boron nitride, 0.5-1.5 parts leveling agent, 0.8-1.2 parts dispersant, and 4-6 parts coupling agent. This application has the effect of improving the overall hardness and corrosion resistance of the steel strip.

The invention relates to the technical field of high polymer materials, and discloses a pressure-sensitive adhesive protective film and a preparation method thereof. According to the pressure-sensitive adhesive protective film disclosed by the invention, high-density polyethylene is taken as a main matrix, and various functional aids are added, so that the comprehensive performance of a polyethylene film is improved; wherein the maleic anhydride grafted low-density polyethylene improves the compatibility among the raw materials of the components of the matrix; hyperbranched polyimide is added, so that the heat resistance and the mechanical strength of the adhesive are improved; the reinforcing filler is added, so that the ultraviolet resistance and transparency of the matrix are improved. Therefore, the polyethylene film provided by the invention has a wider application prospect when being used as a protective film of the pressure-sensitive adhesive.

The application relates to the field of food preparation, in particular to konjac meat processing technology, comprising the following steps: konjac is cleaned and ground, then the ground konjac paddle is poured into an ethanol-citric acid solution and soaked for 3-5h, during the soaking process, microwave treatment is carried out, then centrifugation, washing, drying obtains pre-treated konjac flour; water is added to the pre-treated konjac flour, and complex enzyme is added for enzymolysis after mixing, and enzymolysis konjac is obtained; soy protein powder, gluten powder, fermented starch, mulberry leaf powder, flavoring agent are added to the enzymolysis konjac, stirring and mixing are uniform, and a mixture is obtained; the mixture is heated, and continuously stirred to molding during heating to obtain a semi-finished vegetarian meat; the semi-finished vegetarian meat is cut into strips, and konjac meat is obtained after frying. The present invention is in the processing process of konjac meat, effectively improves the prebiotic effect of konjac glucomannan in the intestinal tract, and improves the health value of konjac meat.

The invention belongs to the field of health-care food preparation, and particularly relates to a composite gel health-care food for reducing blood fat and blood pressure and a preparation method of the composite gel health-care food. The composite gel health-care food is composed of a capsule shell and a content, the content is prepared into Pickering emulsion, the content comprises solid particles, a plant mixture and a water-soluble compound, the solid particles are specifically a soybean protein-porphyra yezoensis polysaccharide-astaxanthin compound and can replace a traditional surface activating agent to play an emulsifying role, and the plant mixture can serve as a plant mixture and a water-soluble compound. The plant mixture is obtained by mixing the sea buckthorn seed oil and the plant extract, and the plant extract is obtained by extracting hawthorn, kudzuvine root, gynostemma pentaphylla, pepper and white hyacinth bean by adopting a deep eutectic solvent in combination with distillation, so that the health level of blood fat and blood pressure can be maintained; the water-soluble complex contributes to emulsion stabilization of the contents. The composite gel health-care food prepared by the preparation method disclosed by the invention is relatively high in safety and has relatively good health-care effects of maintaining blood fat and blood pressure at a healthy level.

The invention provides a plant fiber-nano titanium carbide composite modified asphalt mixture and a preparation method thereof, and aims to solve the technical problem of reducing high and low temperature diseases and water damage of an asphalt pavement while ensuring the pavement performance of the asphalt mixture. The composite modified asphalt is prepared from the following raw materials in parts by weight: 100 parts of mineral aggregate, 3 to 7 parts of asphalt, 0.02 to 0.08 part of cotton straw fiber, 0.09 to 0.21 part of coconut fiber, 0.03 to 0.07 part of nano titanium carbide, 0.013 to 0.032 part of modifier and 0.12 to 0.28 part of stabilizer. The composite modified asphalt mixture is excellent in performance, simple in preparation process and non-toxic and harmless in raw materials, can improve the high-temperature stability, low-temperature crack resistance and water stability of the asphalt pavement, and has great significance in prolonging the service life of the asphalt pavement; the composite modified asphalt mixture belongs to environment-friendly, non-toxic and non-corrosive composite asphalt, has the advantages of wide raw material source, no pollution in the production process, low price and low cost, and has good economic and social benefits.

The invention provides a windproof and warm-keeping polyester fabric. The windproof and warm-keeping polyester fabric sequentially comprises a warm-keeping fabric layer, a breathable fabric layer and a windproof layer from inside to outside, the warm-keeping fabric layer is formed by weaving wool, cotton and linen fibers and polyester fibers in a spinning mode, and the breathable fabric layer is formed by weaving cotton fibers, polyester fibers, bamboo charcoal fibers and nylon in a spinning mode. According to the windproof and warm-keeping polyester fabric and the preparation process thereof, by adopting a multi-layer structural design and a high-performance fiber application technical means, the defects in the prior art can be overcome, the windproof and warm-keeping performance of the fabric is improved, and the requirements of consumers for high-quality textiles are met.

The invention provides an epoxy resin curing agent and a preparation method thereof, and belongs to the technical field of curing agents, the preparation method comprises the following steps: S1, adding nonyl phenol and polybasic primary amine into a three-necked flask with a stirring device and a dropping funnel, stirring, and heating to 50-65 DEG C to obtain a dissolved solution; s2, a formaldehyde solution with the mass concentration of 37% is added into the dissolved solution obtained in the S1, the reaction temperature is 80-95 DEG C, the reaction time is 2-3 h, and first reaction liquid is obtained; s3, amino cardanol is added into the first reaction liquid obtained in the S2, the reaction temperature is reduced by 10-15 DEG C on the basis of the reaction temperature in the S2, the reaction time is 1-2 h, and second reaction liquid is obtained; and S4, cooling the reaction liquid II obtained in S3 to 20-30 DEG C, adding a modifier containing active groups, and reacting for 0.5 h to obtain the epoxy resin curing agent. According to the invention, hydrophobic groups are introduced into the prepared epoxy resin curing agent, and excellent curing capability is still maintained under a low-temperature condition.

The invention discloses durable regenerated rubber asphalt and a preparation method thereof, and relates to the technical field of rubber asphalt preparation. The diatomite is coated with chlorinated palm oil methyl ester through surface tension and capillary action, so that the diatomite is hydrophobic, the cold resistance is improved, meanwhile, the heat conductivity coefficient of the diatomite is low, and the flame retardant effect is achieved; then the modified powder is combined with phosphoenolpyruvic acid to prepare modified powder, phosphorus element is introduced, and phosphorus oxyacid, phosphate ester and other substances are generated through decomposition during combustion, so that the flame-retardant effect is achieved; vinyltrihydroxysilane and asphalt are combined to prepare modified asphalt, a stable net structure is formed, heat resistance is improved, meanwhile, a long Si-O bond is introduced, low-temperature molecular agglomeration is reduced, and low-temperature resistance is improved; finally, unsaturated double bonds in the modified asphalt, the activated powder and the rubber powder are subjected to addition reaction and combined, a cross-linked structure is formed, and the heat-resistant, cold-resistant and flame-retardant effects are achieved.

The present invention discloses a method for preparing a light matrix fertilizer for cultivating indocalamus container seedlings. The matrix fertilizer raw materials are calculated by weight and include: 10-15 parts of peat soil, 10-15 parts of forest surface soil, 40-50 parts of fermented bamboo residues, 10-20 parts of mushroom stick waste, 5-10 parts of manure, 5-10 parts of coal slag powder, 10-15 parts of expanded perlite particles, and 5-10 parts of cross-linked microcrystalline cellulose super absorbent resin. The light matrix fertilizer raw materials of the present invention are simple to prepare and low in cost. The indocalamus ramet container seedlings cultivated by using the matrix have high survival rate and new bamboo germination rate, strong new whip germination ability, and vigorous plant growth. At the same time, the seedling culture matrix has the characteristics of loose texture, light weight, good water retention and excellent anti-collapse performance, which is convenient for seedling transportation and mountain planting.

The invention belongs to the technical field of concrete admixtures, and particularly relates to a composite slurry-raising and water-retaining agent synthesized based on a six-carbon monomer and a preparation method thereof. The composite slurry-raising and water-retaining agent is prepared by fully mixing one or more of the six-carbon monomer, acrylamide and diacetone acrylamide with polyacrylamide and a crosslinking agent to form component A; one or more of acrylic acid, hydroxyethyl acrylate and hydroxypropyl acrylate with methyl acrylate and / or methacrylate and a reducing agent to form component B; in a stirring state, graft-modified fine sand, a catalyst, a chain transfer agent and an oxidant are added to component A, and then component B and an alkali solution are dripped therein, and after the dripping is completed and the reaction is continued for a period of time, one or more of sulfonated tannin, sulfonated tannin, glycerol and lauryl alcohol are added therein, and then water is added to dilute and disperse the mixture to form a water-retaining agent.

The invention relates to the technical field of sealing materials, in particular to a high-stability epoxy sealing material and a preparation method thereof. The epoxy sealing material comprises the following raw materials in parts by weight: 80-100 parts of epoxy resin, 5-30 parts of filler and 35-52 parts of curing agent. Wherein the epoxy resin is at least one of glycidyl amine type epoxy resin, alicyclic epoxy resin, bisphenol A type epoxy resin or fatty acid type epoxy resin. The invention aims to improve the thermal properties and electrical properties of the epoxy sealing material from the aspects of filler design and modification and material curing process optimization, so that the epoxy sealing material obtained by selecting and modifying the epoxy resin and matching the filler with the curing agent has good temperature resistance and dielectric properties, and can be applied to the field of sealing materials. And the device can be applied to machining under different working conditions and is wide in application range.

The invention relates to the technical field of bacteriostatic agents, in particular to a plant extract with a bacteriostatic effect and a preparation method thereof. The preparation method comprises the following steps: S1, mixing roxburgh rose roots, burdock, fructus forsythiae fruits, liquorice, cinnamon and papaya leaves, and crushing into mixed powder; s2, preparing an extraction auxiliary agent from carboxymethyl cellulose, lactoferrin and Tween-20; s3, adding the mixed powder into water, dipping, extracting and filtering to obtain a water extract and filter residues; s4, adding the filter residues into 95% ethanol, then adding an extraction aid, and extracting at 50-60 DEG C for 1-2 hours to obtain an alcohol extract; and S5, uniformly mixing the water extract and the alcohol extract, carrying out vacuum concentration, adding modified cyclodextrin, uniformly mixing, and carrying out spray drying to obtain the plant extract with the antibacterial effect. The plant extract is prepared by combining various plant components and the modified cyclodextrin, so that the antibacterial effect of the plant extract is remarkably improved, and the antibacterial durability of the plant extract is greatly prolonged.

The invention relates to the technical field of plastic preparation methods, in particular to modified plastic and a preparation method and application thereof.The modified plastic is prepared by adding polydopamine-coated modified carbon fibers and silane coupling agent modified nano-silica into a polyacrylate emulsion and then blending the polyacrylate emulsion with polycarbonate. The mechanical property, the thermal stability, the weather resistance and the corrosion resistance of the modified plastic can be improved; as the carbon fibers have the properties of high strength and high modulus, the interface bonding force between the carbon fibers and a polymer matrix is enhanced after coating modification of the polydopamine, and the excellent mechanical properties of the carbon fibers can be effectively transferred into the polymer matrix, so that the overall mechanical properties, such as tensile strength, bending strength and modulus, of the modified plastic are improved; the modified carbon fiber and the modified silicon dioxide are firstly dispersed in the polyacrylate emulsion, and then the polyacrylate emulsion is blended with the polycarbonate, so that the prepared modified plastic has excellent overall thermal stability.

The invention discloses basalt fiber composite modified asphalt based on Xinjiang asphalt and a preparation method, and belongs to the field of road building materials, and the basalt fiber composite modified asphalt is prepared from the following components in parts by mass: 100 parts of Xinjiang asphalt, 4 parts of SBS modifier, 4 parts of chopped basalt fiber, 6 parts of aryl filling oil, 2 parts of compatilizer and 0.5 part of stabilizer. The preparation method specifically comprises the following steps: step 1, preparing materials; step 2, asphalt blending; step 3, preparing modified asphalt; and 4, developing the modified asphalt. The Xinjiang asphalt subjected to compound modification has the obvious advantages of excellent high-temperature and low-temperature performance, convenience in construction and the like.

The invention relates to insect oil bio-based water-based paint and a preparation method thereof. The insect oil bio-based water-based paint is prepared from components in parts by mass as follows: 80-150 parts of high-performance renewable insect oil resin, 100-300 parts of modified bentonite, 20-50 parts of polyvinyl alcohol, 5-20 parts of titanium dioxide, 10-30 parts of a curing agent, 1-20 parts of an auxiliary and a solvent, wherein the modified bentonite is obtained by reacting polyethylene glycol, acrylic acid, hermetia illucens insect grease and bentonite. According to the invention, the compatibility among various components is effectively improved, a cross-linked structure can be formed among the components to generate a synergistic effect, the stability of the coating is improved, the strength of the product is improved, the coating has the effects of bacteriostasis, environmental protection and the like, the problems existing in the prior art are solved, and the coating has a good application prospect.

This application provides a tubing thread sealant for shallow coalbed methane wells, its preparation method, and its application, belonging to the field of oilfield development. The tubing thread sealant comprises: component A, component B, and component C; wherein, by weight, component A includes the following chemical components: 41-61 parts of polymer matrix, 15-23 parts of 5-methylthio-7-fluoro-1H-indene, and 23-37 parts of excipients; component B includes the following chemical components by weight: 80-90 parts of epoxy curing agent and 10-25 parts of epoxy curing accelerator; and component C is an additive. In component A, a polymer matrix is ​​used as the matrix. By introducing molecularly designed active substances containing fluorine and sulfur elements, such as 5-methylthio-7-fluoro-1H-indene, the material combines the weather resistance and toughness of rubber while maintaining stable performance at high temperatures, making it less prone to deformation or failure.

The vehicle-mounted sound equipment cover cap forming mold with the demolding protection function comprises an upper mold core and a lower mold core, the upper mold core is provided with a mold core set used for forming a net-shaped structure on a vehicle-mounted sound equipment cover cap, the mold core set comprises a movable insert mechanism, and when the upper mold core and the lower mold core are separated, the movable insert mechanism is arranged on the mold core set. And the movable insert mechanism is kept in contact with the lower mold core and then synchronously moves with the upper mold core until the movable insert mechanism is separated from the lower mold core. According to the vehicle-mounted sound equipment cover cap forming mold with the demolding protection function, in the demolding process, after the upper mold core and the lower mold core are separated, the movable insert mechanism is kept in contact with the lower mold core for a period of time, the net-shaped structure is stabilized, and pull-apart is avoided.

The invention discloses an intercalated coal gangue based surface molecularly imprinted adsorption material and a preparation method thereof. The preparation method comprises the following steps: firstly, by taking intercalated coal gangue as a carrier, phenol as a template molecule, methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linking agent and azodiisobutyronitrile as an initiator, preparing an intercalated coal gangue based surface molecularly imprinted adsorption material; and carrying out surface molecular imprinting reaction on the surface of the intercalated coal gangue to form a polymer layer. And the template molecules and the functional monomer assembly are fixed together by the layer. And eluting to remove phenol template molecules to finally obtain the intercalated coal gangue-based surface molecularly imprinted adsorption material with a specific adsorption aperture structure. The coal gangue is used as a raw material, treated and then mixed with an intercalator solution with a certain concentration to prepare the coal gangue intercalator. The intercalation process comprises direct intercalation of dimethyl sulfoxide, two-time intercalation of dimethyl sulfoxide and methanol and macromolecule intercalation of cetyltrimethylammonium bromide, the intercalation process and the imprinting effect are optimized, and the phenol adsorption performance and specific adsorption of phenol are improved.