87 results about "Vinyl pyridine" patented technology

The invention discloses a glue solution for a copper-clad plate and a preparation method of the glue solution, and relates to the technical field of copper-clad plates. According to the prepared glue solution for the copper-clad plate, the composite epoxy resin, the curing agent, the accelerant, the solvent, the flexibilizer and the inorganic filler, the composite epoxy resin comprises bisphenol A epoxy resin, epoxy phenyl polysiloxane, itaconic acid polyaryletherketone and hydroxyl-terminated fluorine-containing vinyl polysiloxane, so that the interface bonding force with the copper plate is enhanced; the dielectric constant and the dielectric loss are effectively reduced, the peel strength and the toughness of the material are also remarkably improved, and the toughening agent is modified polyether sulfone microspheres; the modified polyethersulfone microspheres are prepared by coating polyethersulfone microspheres with hexamethylenediamine tetrapropionamide diamine, the hexamethylenediamine tetrapropionamide diamine is prepared by carrying out acylation condensation reaction on hexamethylenediamine tetramethyl propionate and ethylenediamine, and the polyethersulfone microspheres are prepared by carrying out electrostatic spinning on a spinning solution of polyethersulfone and vinylpyridine, so that the peel strength of the glue solution is remarkably improved.

The invention provides a high-molecular adsorption material with high selectivity on platinum group metals as well as a preparation method and application of the high-molecular adsorption material, and belongs to the technical field of material science. Comprising the following steps: (1) preparing a methanol solution containing platinum group metal ions, and adding a functional monomer mixture and modified graphene oxide to form a pre-assembled compound; (2) adding a cross-linking agent and an initiator, removing oxygen, and polymerizing to obtain a polymer; and (3) grinding the polymer, eluting metal ions, washing to be neutral, and drying. The high-molecular adsorption material provided by the invention takes modified graphene oxide as a support body, template molecules and specific functional monomers (4-vinylpyridine and 2-mercaptobenzimidazole) are combined to form a pre-assembled compound, then a cross-linking agent and an initiator are added, recognition sites are fixed through cross-linking polymerization, and finally, the high-molecular adsorption material is obtained after the template molecules are eluted. The adsorbent is high in adsorption rate, capable of specifically adsorbing platinum group metal, good in stability and reproducibility and capable of being repeatedly used.

The invention relates to the technical field of polymer photoelectric materials, in particular to a preparation method of a supramolecular gel electrolyte. The method comprises the following steps: esterifying tetraphenylethylene alcohol and methacryloyl chloride to form tetraphenylethylene methacrylate, and performing staged linear heating polymerization on the tetraphenylethylene methacrylate, 3-(methacrylamido) propyl dimethyl 3-thiopropyl ammonium oxide inner salt, acrylic acid, tetraphenylethylene methacrylate and 4-vinylpyridine under the action of ammonium persulfate to obtain a tetraphenylethylene copolymer. And finally, soaking in a lithium chloride aqueous solution to obtain the supramolecular hydrogel electrolyte. The hydrogel obtained by the invention has high mechanical strength and high ionic conductivity, and is suitable for energy storage devices such as flexible supercapacitors and the like.

The invention relates to the technical field of tobacco smoke analysis, and discloses a gas sensor for detecting the content of 3-vinylpyridine in real time and a preparation method of the gas sensor. In order to realize accurate detection of tobacco smoke in the environment, 3-vinylpyridine in environmental gas is taken as a detection object, a SnO2 nanofiber material is further taken as a gas sensitive element, the detection sensitivity of the 3-vinylpyridine is remarkably improved, the SnO2 nanofiber material is arranged on the heating substrate, and the gas sensitive element is arranged on the heating substrate. The gas sensor generates a resistance change signal which linearly changes along with the change of the content of 3-vinylpyridine, so that the environmental tracing of the tobacco smoke is realized. Therefore, the invention provides the gas sensor with high sensitivity and high accuracy for tobacco smoke environment tracing.

The invention provides a spiro butane indolone derivative as well as a preparation method and application thereof, and belongs to the technical field of organic chemical synthesis. The series cyclization coupling reaction of the N-iodo aryl dicyclobutyl amide compound and the vinyl pyridine compound is realized by utilizing a photocatalytic system, and the method is used for constructing the spiro butane indolone derivative containing the pyridine structure. The spirobutane indolone derivative synthesized by the invention has an inhibition effect on H1975 human lung adenocarcinoma cells; the preparation method provided by the invention is mild in condition and simple and convenient to operate, has economical steps, provides a convenient synthesis way for the complex bioactive molecules, and has a good application prospect.

The invention provides high-temperature-resistant textured paper and a preparation process thereof, and belongs to the technical field of textured paper. The preparation process comprises the following steps: preparing the raw paper; preparing a gum dipping solution; and impregnating the raw paper. The preparation method comprises the following steps: by taking p-vinylbenzoic acid and 2-vinylpyridine as functional monomers, mixing the p-vinylbenzoic acid and 2-vinylpyridine with styrene, butadiene and tert-dodecanethiol, adding the mixture into an emulsifier solution, emulsifying to prepare a pre-emulsion, then carrying out copolymerization under the initiation of potassium persulfate to prepare modified styrene-butadiene latex, and introducing carboxyl to form a strong hydrogen bond, so as to obtain the modified styrene-butadiene latex. According to the modified styrene-butadiene latex, the action force between molecular chains is remarkably enhanced, polar nitrogen atoms of pyridine rings and polar groups in adjacent molecular chains can form dipole interaction, the binding force between molecules is enhanced, and then the thermal stability of the styrene-butadiene latex is improved. The high temperature resistance of the prepared masking paper can be effectively improved.

The application belongs to the field of organic synthesis, and particularly relates to a synthesis method of 2-(3,3-dimethylbutyl)pyridine. 2-vinylpyridine, brominated tertiary butane, a mixed solution of dimethyl ether and isopropyl ether as a reaction system solvent, nickel iodide as a nickel salt, bipyridine as a ligand, dicyclohexylmethylamine as a base in the system, 2,6-dimethyl-3,5-diethyl-1,4-dihydropyridine as a reducing agent, a photocatalyst 2,4,5,6-tetrakis(9 ‑ Carbazole) - m-phenylenedinitrile, under the condition of room temperature and nitrogen atmosphere, a reduction cross-coupling reaction is used to synthesize 2-(3,3-dimethylbutyl)pyridine. The application uses inexpensive nickel metal as a catalyst, constructs a cross-coupling reaction of carbon-carbon bond, and has the advantages of mild reaction condition, high economy and the like.

The application belongs to the technical field of oil exploitation, and particularly relates to a temporary plugging agent for fracturing acidification and a preparation method thereof. The preparation method is as follows: in a reactor, itaconic acid, p-styrene sulfonic acid, 2-allyloxy methyl-2-hydroxymethyl propane-1,3-diol, vinyl pyridine, pentaerythritol diacrylate, buffer salt and deionized water are sequentially added, stirring is conducted, the pH value is adjusted, and all raw materials are completely dissolved; an initiator is added from a high-position dropping tank, the reaction is automatically heated, the reaction is kept, a reducing agent is added, the reaction is terminated, the pH value is adjusted, and a temporary plugging agent solution is obtained; the temporary plugging agent solution is dried and granulated to obtain the product temporary plugging agent. The preparation method has the characteristics of simple synthesis process and no by-products; the temporary plugging agent has the advantages of large water absorption, large plugging strength, high breakthrough pressure, self-degradation and designable degradation time.

The application provides a dithiol modified copolymer and a preparation method and application thereof, and particularly relates to the technical field of lithium batteries. In the dithiol modified copolymer, the copolymer is a branched diene-vinyl pyridine copolymer, which is mainly obtained by copolymerization of branched diene and vinyl pyridine. The dithiol modified copolymer provided by the application has a main chain composed of flexible branched diene units, which endows the copolymer with a good elastic skeleton structure; vinyl pyridine is introduced as a functional monomer, so that a pyridine group is formed on the side chain of the copolymer; a dithiol compound introduces a thiol group (-SH) to the copolymer, and finally, the dithiol modified copolymer has a flexible main chain structure, and the side chain simultaneously contains a pyridine group and a thiol group, and has good elasticity and functional characteristics.

The invention belongs to the technical field of biosensors, and provides molecularly imprinted hydrogel for sarcosine detection, a micro-strain conduction sensor and a preparation method of the micro-strain conduction sensor. The hydrogel is prepared by the following steps: carrying out photo-initiation polymerization on a gel pre-polymerization solution containing a 4-vinylpyridine monomer, a 2-acrylamide-2-methylpropanesulfonic acid monomer, an acrylamide monomer, sarcosine template molecules, a cross-linking agent and a photoinitiator, and washing to remove the sarcosine template molecules. The micro strain conduction sensor is composed of a hydrogel layer and a resistance strain gauge, and the hydrogel layer is chemically bonded to one side of the resistance strain gauge and completely covers sensitive grid wires of the resistance strain gauge. The hydrogel disclosed by the invention has excellent specific recognition capability on sarcosine, and high-sensitivity and high-selectivity detection of sarcosine in a complex matrix sample can be realized through the micro strain conduction sensor disclosed by the invention.

The invention relates to the technical field of block copolymer materials, in particular to a preparation method of a polystyrene-vinylpyridine block copolymer composite membrane. The preparation method comprises the following steps: firstly, preparing a polyvinyl pyridine macromolecular chain transfer agent, then preparing a polystyrene-polyvinyl pyridine block copolymer, dissolving the synthesized polystyrene-polyvinyl pyridine block copolymer, spin-coating the surface of a microfiltration membrane with the dissolved polystyrene-polyvinyl pyridine block copolymer, and adjusting membrane-forming and pore-forming parameters, so that the block copolymer forms a continuous and uniform membrane layer on the surface of a base membrane; meanwhile, the interface is tightly combined with the base membrane. According to the method, high monomer conversion rate and narrow molecular weight distribution are achieved under the synergistic effect of the chain transfer agent and the free radical initiator, the polymerization activity is maintained by supplementing the initiator in different stages, and the polymerization efficiency is effectively improved.

The present application relates to the technical field of membrane separation, in particular to a PVDF ultrafiltration membrane, a preparation method and application thereof, wherein the PVDF is in-situ modified by copolymerization of vinylpyridine, hydroxy acrylate and vinylidene fluoride, so as to improve the hydrophilicity, heat resistance and flexibility of the PVDF; the dispersibility of titanium oxide and the compatibility with the modified PVDF are improved by multi-component modification of the titanium oxide; and then the modified PVDF, the modified titanium oxide and a pore-forming agent are used as raw materials to prepare the ultrafiltration membrane, so that the prepared PVDF ultrafiltration membrane has a high water treatment flux, and the mechanical property, anti-fouling property and stability of the PVDF ultrafiltration membrane are improved; the prepared PVDF ultrafiltration membrane has a good water treatment effect and a good application prospect.

The application provides a kind of polyamide acid salt, negative photosensitive polyimide and its preparation method and electronic product, it is related to microelectronic technology field.The structure general formula of polyamide acid salt is: the preparation method of polyamide acid salt includes: under the protection atmosphere, diamine monomer and dianhydride monomer are carried out first reaction to obtain polyamide acid solution, then join photosensitive vinylpyridine compound, and carry out second reaction to obtain the polyamide acid salt.The polyamide acid salt provided in the application is the core raw material for obtaining low dielectric, alkali developable negative photosensitive polyimide, and the obtained negative photosensitive polyimide has good thermal stability, mechanical property, lower dielectric constant and can be developed in alkaline solution.

Nanocomposites comprising nanoparticles, small molecules, and block copolymer (BCP)-based supramolecules are provided. The nanoparticles, small molecules, and BCP-based supramolecules self-assemble into a plurality of nanosheets that form a multilayer nanocomposite. The nanoparticles, small molecules, and BCP-based supramolecules can be Zr02, 3-pentadecylphenol (PDP), polystyrene-b-poly(4-vinylpyridine) block copolymer (PDP) 1, respectively. b A method of producing a nanocomposite by contacting nanoparticles, small molecules, and BCP-based supramolecules with a solvent and drying to remove the solvent to allow self-assembly is also provided. The nanocomposites provided herein can be used as a barrier material against volatile organic compounds, water, oxygen, or electrons, and can be used as a coating on various substrates and as a packaging material, or as an optical material.

The invention provides a dithiol modified copolymer as well as a preparation method and application thereof, and particularly relates to the technical field of lithium batteries. In the dithiol modified copolymer, the copolymer is a branched chain diene-vinylpyridine copolymer, and is mainly obtained by copolymerizing branched chain diene and vinylpyridine. According to the dithiol modified copolymer provided by the invention, a main chain is composed of flexible branched chain diene units, so that the copolymer is endowed with a good elastic skeleton structure; vinylpyridine is introduced as a functional monomer, so that a pyridine group is formed on a side chain of the copolymer; the dithiol compound introduces a thiol group (-SH) into the copolymer, the finally obtained dithiol modified copolymer has a flexible main chain structure, a side chain contains a pyridine group and the thiol group at the same time, and the dithiol modified copolymer has good elasticity and functionalization characteristics.

The present disclosure provides, as a film structure useful for a probe of a biosensor, a film structure comprising a detection layer including an analyte-responsive enzyme; and a protection film formed on the detection layer, in which the protection film includes a copolymer mixture including poly(styrene-ran-4-vinylpyridine-ran-propyleneglycol methacrylate); and poly(4-vinylpyridine)-block-poly(C1-15 alkyl methacrylate), or poly(4-vinylpyridine-ran-2-hydroxyethyl methacrylate).

The invention provides a high-temperature-resistant suspending agent as well as a preparation method and application thereof. The high-temperature-resistant suspending agent is prepared from raw material components including modified hectorite, olefin sulfonate and alkenyl polycyclic monomers through a polymerization reaction, the modified hectorite is hectorite modified by a silane coupling agent; the alkenyl polycyclic monomer is one or more of 1-vinyl-2-pyrrolidone, 5-vinyl-2-pyrrolidone and 4-vinylpyridine, and the alkenyl polycyclic monomer is one or more of 1-vinyl-2-pyrrolidone, 5-vinyl-2-pyrrolidone and 4-vinylpyridine; the olefin sulfonate is one or more of sodium 2-acrylamido-2-methylpropanesulfonate, sodium vinyl sulfonate, sodium p-styrenesulfonate and sodium allysulfonate. The high-temperature-resistant suspending agent disclosed by the invention can be well dispersed in a water phase, is not easy to aggregate under high-temperature and high-salt conditions, is applied to the high-temperature-resistant water-based drilling fluid, can effectively enhance the suspension property of solid-phase particles in the drilling fluid, and ensures that the drilling fluid has good stability.

This invention relates to the field of organosilicon resin preparation technology, specifically to a method for synthesizing a high-performance moisture-curing organosilicon resin and its application. The preparation steps of the organosilicon resin are as follows: Step 1, adding an epoxy monomer and 2-vinylpyridine to a solvent, then adding an initiator to obtain a mixture; Step 2, adding the organosilicon monomer to the solvent, adding a composite catalyst, and stirring to react, obtaining an organosilicon prepolymer; Step 3, at room temperature, adding a modified filler to the mixture, stirring to react under inert gas protection, then adding the organosilicon prepolymer, copolymerizing, and distilling under reduced pressure to obtain the organosilicon resin. The prepared organosilicon resin exhibits excellent mechanical properties, high tensile strength, large elongation at break, excellent tear strength, water impermeability, good bonding strength, and high curing efficiency, with short surface drying and hard drying times. It possesses both mechanical strength and flexibility, as well as reliable waterproofing and adhesion.

The utility model relates to the technical field of rectification equipment, and discloses a 2-vinylpyridine rectification device, which comprises a rectification tower main body and a feed pipe fixedly connected inside the rectification tower main body, the output end of the feed pipe is fixedly connected with a fixed pipe, and the outer surface of the fixed pipe is fixedly connected with a spray head. By means of the annular disc capable of sliding in the inner cavity, when materials do not need to be sprayed out, due to the strong pressure in the sealing groove, the annular disc can be driven by the sealing disc and the fixing rod to slide downwards, the inserting rod is inserted into the spraying hole, and in the intermittent period of equipment operation, the annular disc is driven by the strong pressure in the sealing groove to slide downwards; the plunger is inserted into the spray hole, polymer particles, insoluble impurities and crystals which are possibly blocked in the spray hole can be effectively removed, and the cleaning mode can be used for timely cleaning before spraying each time, so that uneven feeding caused by blockage is avoided, and good gas-liquid contact and high-efficiency rectification operation are maintained.

The application discloses a 2,4-dinitrophenol / Pb (II) double-template imprinted polymer adsorbent and a preparation method thereof. The double-template imprinted monolithic adsorbent is prepared by using in-situ polymerization technology, 2,4-dinitrophenol and Pb (II) are used as imprinting templates, 4-vinylpyridine and dimethylaminopropyl acrylamide are used as functional monomers. The functional monomers and the templates are effectively combined through hydrogen bond action and coordination action, and then a porogen and a crosslinking agent are added to react to form a polymer. The double templates are eluted, and a three-dimensional cavity structure with specific recognition function is left. The specific binding sites and shapes on the cavity are used to realize selective extraction of NP S and Pb (II). Meanwhile, the prepared double-template imprinted adsorbent has the advantages of simple operation, good permeability, low cost and wide application range, and therefore the double-template imprinted polymer monolithic adsorbent prepared by the application has good practical application value.

The invention provides a synthesis method of a 4-mercaptoethyl pyridine compound, which is characterized in that 4-vinylpyridine and potassium sulfide are used as raw materials, and a target product 4-mercaptoethyl pyridine is obtained under an acidic condition. The reaction method has the advantages of cheap and easily available initial raw materials, high yield, simplicity and very high industrial application value.

This invention relates to the field of energy storage materials technology, specifically disclosing a graft-modified polyethylene dielectric material, its preparation method, and its applications. The material is prepared by chemically grafting 1-(3-thiopropyl)-2-vinylpyridine betaine (SPV) into the polyethylene backbone. The pyridine rings in the SPV side groups, through their conjugated electron effect, introduce localized energy level structures into the nonpolar polyethylene matrix, forming distributed deep-trap charge-capturing regions. This significantly suppresses the migration and collisional ionization of charge carriers under high electric fields, effectively improving the material's breakdown field strength and high-field service stability. Simultaneously, the grafting modification method does not disrupt the regular arrangement of the polyethylene backbone, thus maintaining the inherent low dielectric loss, good flexibility, and processing performance of polyethylene. It is particularly suitable for the preparation of high-energy-density film capacitors and has broad application prospects in electrical equipment operating under extreme conditions such as new energy vehicles, aerospace, and smart grids.

A cross-linked polystyrene-vinylpyridine copolymer, its preparation, and application in metal-catalyzed organic reactions. The copolymer is synthesized in a one-step process using styrene and 4-vinylpyridine as monomers, divinylbenzene as a cross-linking agent, potassium persulfate (K2S2O8) as an initiator, and water as a solvent. The copolymer is inexpensive and easy to prepare, and can quickly and effectively adsorb noble metal ions from complex solutions as a solid-phase adsorbent. Furthermore, the adsorbent can be desorbed by a solvent, and the noble metal-loaded adsorbent can also be directly used in organic catalytic reactions, achieving secondary utilization of the noble metal.

This invention discloses a hydrogel-modified membrane and its preparation method. The preparation method of the hydrogel-modified membrane is as follows: under light-protected inert atmosphere, tert-butylaminoethyl methacrylate, vinylpyridine, and a photoinitiator are added to water and mixed to obtain a premixed solution. The premixed solution is then irradiated with low-intensity ultraviolet light to obtain a grafting modification solution. A polypropylene microporous membrane is then immersed in the grafting modification solution and irradiated with high-intensity ultraviolet light before the membrane is removed. The modified polypropylene microporous membrane is then washed with an organic solvent and water to obtain the hydrogel-modified membrane. This invention effectively solves the problem of easy degradation of tert-butylaminoethyl methacrylate in water after ultraviolet irradiation by utilizing a prepolymerization reaction, making tert-butylaminoethyl methacrylate applicable to the preparation of hydrophilic gel layers. The modified polypropylene microporous membrane prepared by this invention has high water flux and a small water contact angle, significantly improving the hydrophilicity of the polypropylene microporous membrane and expanding the application range of polypropylene membrane materials in aquatic environments.

The invention belongs to the technical field of soil remediation, and particularly relates to a preparation method of a biochar composite material and a soil remediation method. Comprising the following steps: preparing a charcoal specific adsorption material; preparing an earthworm mucus adhesive; and compounding and granulating the biochar microorganisms. According to the preparation method, phenanthrene is taken as a template molecule, 4-vinylpyridine is taken as a functional monomer, charcoal is taken as a loading material, and the charcoal specific adsorption material capable of specifically recognizing the polycyclic aromatic hydrocarbon pollutants is prepared through a pi-pi stacking effect between phenanthrene and 4-vinylpyridine; the biochar composite material is prepared by taking a biochar specific adsorption material as a loading material of a composite microbial agent, and can specifically adsorb polycyclic aromatic hydrocarbon pollutants in soil, so that microorganisms in the composite microbial agent can continuously degrade the polycyclic aromatic hydrocarbon pollutants such as phenanthrene and pyrene in a large range, and the polluted soil is effectively repaired.

The application belongs to the technical field of paint preparation, and provides polyester resin powder paint with high salt mist corrosion resistance and a preparation method thereof.The powder paint is composed of a carboxyl functional polyester resin, a hydroxyalkylamide curing agent and / or trisglycidyl isocyanurate to form a film forming system, and is matched with titanium dioxide, inorganic fillers, acrylate leveling agent, benzoin and wax powder;quaternary ammonium poly-p-vinyl pyridine microgel is introduced into the paint, and double-particle-size microcapsules are added;the microcapsule core layer contains hydroxyl-terminated polydimethylsiloxane, mercaptobenzothiazole corrosion inhibitor components, polycarbodiimide and phthalate plasticizer, the shell layer is a polyurea inner shell and a polydopamine outer shell and contains a disulfide bond structure, an epoxy silane hydrolysis and condensation layer is arranged on the outer layer and loads the microgel.

The utility model discloses a 2 -vinyl pyridine production is with batching device relates to 2 -vinyl pyridine production technical field, the utility model discloses a reaction kettle main part, the side and the bottom of reaction kettle main part are fixed with feed inlet and discharge gate respectively, the top of reaction kettle main part is provided with the central rotation hole. The utility model discloses through starting control motor, can drive hollow rotating shaft and stirring vane to and fro rotation, and the material in the reaction kettle main part is back and forth staggered stirring, and simultaneously, also can drive lengthened rotating shaft and spiral blade together rotation, the raw material in the reaction kettle bottom or discharge gate place is continuously conveyed upward, thereby can let material will be in the reaction kettle more complex and comprehensive stirring, fully breaks the flow dead zone that can exist in the reaction kettle, greatly enhanced the mixing effect of material, makes material can fully intermingled mixing, effectively improved the reaction rate and conversion rate of material, provides powerful guarantee for efficient production 2 -vinyl pyridine.

The present application belongs to the field of oilfield production aids, and relates to a preparation method of an in-situ phase change gel profile control oil displacement agent. The present application particularly relates to a method for preparing an in-situ phase change gel profile control oil displacement agent from allyl urea, vinyl pyridine, acryloyloxyethyl trimethyl ammonium chloride, 2-acrylamide-2-methylpropanesulfonic acid, 2-acrylamido tetradecyl sulfonic acid and acrylamide. The present application prepares a quaternary copolymer from allyl urea, 2-acrylamido tetradecyl sulfonic acid, 2-acrylamide-2-methylpropanesulfonic acid and acrylamide according to a molar ratio of 1:1:5:25 by free radical initiated aqueous solution polymerization; prepares a ternary copolymer from 4-vinyl pyridine, acryloyloxyethyl trimethyl ammonium chloride and acrylamide according to a ratio of 1:5:25 by free radical initiated aqueous solution polymerization; and then mixes the prepared two polymer solid powders according to a ratio of 1:1 to prepare a variable phase gel profile control oil displacement agent. The profile control oil displacement agent has strong profile control water shutoff and oil displacement capacity, and the preparation process is reliable.

The present invention discloses a preparation method of a poly (4-vinylpyridine) grafted carbon nanotube / sea urchin gold nanonecklace structure and its SERS application, which is a simple and effective method for preparing a necklace-like nanostructure, wherein sea urchin gold is uniformly and stably connected in series on polymer-grafted carbon nanotubes through template-assisted nanocrystal growth. First, the surface of the carbon nanotube is covalently functionalized by surface-initiated atom transfer radical polymerization. Then, sea urchin gold (SUGNPs) nanostructures are grown using the polymer-grafted carbon nanotubes as a template. This special structure can prevent the aggregation of SUGNPs and ensure the long-term stability of the obtained necklace-like SUG-CNT shish-kebab nanocomposite material. The reliability and sensitivity of the necklace-like SUG-CNT shish-kebab nanocomposite material as a SERS substrate are verified by Raman detection of malachite green.