83 results about "Macromolecule complex" patented technology

The invention discloses a high-strength flexible graphene composite heat conduction film and a preparation method thereof. The film is formed by physically cross-linking macroscopic multi-layer folded graphene with micro-scale folds, wherein slice layers can slip, so that the film has extremely high flexibility. The graphene slice layers are perfect in structure, and slice-layer crystalline areas of the graphene slice layers are extremely great and have less defects, so that the graphene slice layers are compact in structure after being pressed under high pressure, and have extremely high conductivity and heat conduction. Meanwhile, in the presence of polymer based composites, the graphene slice layers can be cross-linked, so that the strength of the graphene film is strengthened. The high-strength flexible graphene composite heat conduction film has strength which can be up to 100-300MP, can be resistant to repeated bending by more than 1000 times, has elongation at break of 6-16%, has electric conductivity of 6000-8600S / cm, has thermal conductivity of 1400-1800W / mk, and can be widely used for high-strength designable heat-conduction and conductive apparatuses.

The invention provides a chip for an SPR bioreactor in the field of optical sensors as well as a preparation method and application of the chip. The chip is composed of a glass substrate, a graphene or graphene oxide / polymer compound film and a gold film generated in an evaporation manner in order from bottom to top, wherein the polymer compound is polyacrylic acid or a polyacrylate. According to the preparation method, a layer of graphene / polymer compound film material is added between the glass substrate and the gold film, and the detection sensitivity of the SPR sensor is enhanced by virtue of the surface plasma resonance effect, which is better than that of the gold film, of the graphene; the SPR sensor manufactured by use of the method is high in sensitivity, simple and convenient in preparation method, and widely applicable to the fields such as biology, medicine, chemistry and environments.

The invention discloses a method for preparing a microorganism-loaded sandwiched micro-nano fiber composite membrane capable of adsorbing heavy metals on the basis of alternate use of electrostatic spinning and electrostatic spraying. The method comprises the steps that a polymer composite is dissolved into an organic solvent, and magnetic stirring is conducted to obtain a mixed solution; a micro-nano fiber membrane is prepared through an electrostatic spinning technology; microorganisms are dispersed into deionized water, and the solution is stirred to be uniform and electrostatically sprayed on the surface of the micro-nano fiber membrane; a sample is put into a vacuum drying oven to be dried till the solvent is completely volatilized, and a double layer is obtained; the microorganism-loaded sandwiched micro-nano fiber composite membranes with the different needed odd and even layer numbers can be obtained through repeated operation. What is more novel is that the material can achieve repeated desorption and reutilization and is significant in adsorption effect; in addition, the method is low in raw material cost, good in biocompatibility, mild in reaction condition, wide in applicability and the like and is expected to be applied to large-scale industrial production.

The invention relates to a method for preparing modified loess with high adsorption performance. The method comprises the following steps of: (1) after stirring loess, distilled water and acrylic acid uniformly under room temperature, dropwise adding a NaOH solution with neutralization being 40-90% for neutralization to obtain a neutralization solution; (2) then adding hydroxyethyl methacrylate to the neutralization solution and stirring the materials uniformly to obtain mixed liquor; and (3) adding a crosslinking agent glycidyl methacrylate to the mixed liquor, heating the materials to 40-90 DEG C after introducing inert gases, finally adding an initiator ammonium persulfate, stirring the materials for 20-120 minutes when raising the temperature to 50-95 DEG C, thus generating a composite, and washing and drying the composite to a constant weight, thus obtaining the loess-based polymer composite adsorbent. The method has the following advantages that the natural loess is used as the raw material and is modified by acrylic acid and hydroxyethyl methacrylate to obtain the loess-based polymer composite adsorbent; and the loess-based polymer composite adsorbent is applied to treatment of wastewater containing heavy metal ions and dyes and has the characteristics of strong absorbability and large adsorption capacity.

The invention provides a high polymer compound chelated with heavy metal elements, which is characterized in that the compound comprising a functional group that can provide lone pair electrons is loaded on a high polymer vector and the heavy metal elements are chelated on the compound. The invention also provides a preparation method of the high polymer compound and application thereof to removing pesticide residues. The invention has the advantages that: the high polymer compound has easily-obtained raw materials, lower cost as well as simple preparation method and use method, can simultaneously remove a plurality of pesticide residues efficiently, rapidly and conveniently and reach national standards related to pesticide residues; and the invention has no defects in a biodegradation method, a physical removing method and a chemical degradation method, and the like which are used commonly and is a good method which can be popularized and has industrial potential.

The invention discloses a preparation method of a graphene and macromolecule composite material. The preparation method comprises the following steps: firstly dispersing a graphene derivative in a solvent, mixing a solid particulate matter to form a mixture, drying the mixture, performing heating treatment on the mixture through a microwave heating zone at a set speed in a set atmosphere to convert the graphene derivative in the mixture into grapheme, subsequently cooling to obtain a mixture of the grapheme and the solid particulate matter, and then compounding the mixture and macromolecules through methods of melting, bonding, forming and the like to obtain a grapheme-macromolecule compound. The preparation method disclosed by the invention solves the problems of difficult graphene dispersion and poor graphene derivative performance, can be used for conveniently and quickly producing the graphene and macromolecule composite material in batch and is expected to make a contribution to further development and application of the graphene and macromolecule material.

The invention discloses a soilless rubbish capping material and an application thereof. The soilless rubbish capping material comprises the following components in parts by weight: 0.1-50 parts of cement, 0.1-10 parts of fibre and 0.1-50 parts of macromolecule binding agent. The application thereof comprises the following steps: mixing the soilless rubbish capping material and water in proportion of 1:0.26-0.032 and stirring uniformly, and evenly spraying the mixed slurry on a rubbish site to form a closed capping surface. The invention has the advantages that: an environmental macromolecule composite is used for replacing covering soil to solve the problem of soil shortage; operation time and labour for covering soil are reduced; total capacity of the rubbish site is increased by about 30% with obvious economic benefit; dust pollution to atmosphere occurred in the landfill process in the rubbish site is obviously restrained; pathogenic bacteria infection caused by foraging birds is effectively controlled; growth and breeding of pathogenic bacteria are effectively controlled; and an anti-flaming material is used for effectively preventing rubbish sites from explosions and fires.

The present invention is outer wall heat insulating polymer adhesive as one kind of polymer product and belongs to the field of fine chemical technology. The adhesive of the present invention has main components including polyacrylate resin, epoxy resin and composition polymer, additives including plasticizer, roughener, diluent, active agent, antifreeze agent, emulsifier, flame retardant, thickener and waterproof agent, and water. The adhesive has the advantages of both available polyacrylate resin adhesive and epoxy resin adhesive. In addition, it has excellent antiseepage, antifreeze, fireproof and other performance, and can meet the requirement in heat insulation in cold area.

The invention discloses a silicon nanometer wire-conductive polymer PEDOT (polyethylenedioxythiophene) compound as well as a preparation method and an application thereof. The preparation method comprises the following steps: 1) using an HF (Hydrogen Fluoride) solution to treat the surface of a silicon nanometer wire array structure which is acquired by using a metal nanometer particle catalyzing auxiliary etching method, thereby acquiring a treated silicon nanometer wire array structure; and 2) using a cyclic voltammetry to enable a polymer monomer EDOT (ethylenedioxythiophene) to have electrochemical polymerization on the surface of the treated silicon nanometer wire array structure, thereby acquiring a silicon nanometer wire-conductive polymer compound. The preparation method has a mild reaction condition, is easily operated and can be used for efficiently controlling the thickness of functional polymers on the silicon nanometer wire surface, the band structure and the conductivity. The preparation method is an effective method for constructing a compound structure of the silicon nanometer wire-conductive polymer functional compound. The application of the acquired compound structure in the field of photocatalytic hydrogen production is researched and a result shows that the compound structure has high catalytic property.

The invention discloses a method for preparing tungsten diselenide nano sheets, comprising the following steps of: evenly mixing tungsten powder and selenium powder in a certain mol ratio; heating and reacting the mixture under protection of argon, and cooling to obtain the tungsten diselenide nano sheets. The tungsten diselenide nano sheet is of an inorganic nano sheet laminated structure; the tungsten diselenide nano sheet has excellent dispersion performance and friction performance in base oil and polymer compounds; the tungsten diselenide nano sheet is simple in preparing method, safe, environment friendly, high in production rate, low in cost and suitable for large-scale industrial production.

The invention belongs to the field of rare earth-macromolecule complex luminescent materials, and particularly relates to a bonding type polymer-rare earth ternary complex luminescent material and a preparation method thereof. The bonding type polymer-rare earth ternary complex luminescent material is prepared by coordinating rare earth ions with polymer of bonded naphthoic acid ligand serving as a macromolecule ligand and any one of naphthoic acid, phenanthroline, and 2,2'-diphridyl serving as a micromolecule ligand. Not only is the method easily realized, but also the performances of the material prepared can be greatly improved, the problems in the prior art that the rare earth complex are uneven to disperse, poor in performances of polymer matrix and the like can be solved, and the bonding type polymer-rare earth ternary complex luminescent material and the preparation method thereof can develop a new way for preparing novel rare earth-macromolecule complex luminescent materials.

The invention provides a method for preparing an electroconductive polymer compound. The method comprises the steps that aniline, an optional phytic acid, a water-soluble polymer of which the side chain comprises one or more of hydroxyl, carboxyl and sulfo group, a free radical polymerization initiator and a solvent are mixed, and a polymerization reaction is performed. The invention also provides a method for preparing the electroconductive polymer compound for strain and / or pressure sensing. The electroconductive polymer compound prepared by the method has favorable self-healing nature, mechanical property and electrical property. Besides, when used for a strain sensor or a pressure sensor, an electroconductive polymer compound membrane prepared by the method has excellent sensing sensitivity and actual monitoring and sensing capabilities before and after self-healing.

The present invention relates to one kind of high molecular composite material, and is especially one kind of shock resisting conductive polyphenyl ether composition and its preparation process. The polyphenyl ether composition consists of polyphenyl ether resin 60-76 wt%, carbon black 17-25 wt%, shock modifier 3-20 wt% and phosphate 1-10 wt%. It is prepared through high speed pre-mixing and dispersing and once extruding. The polyphenyl ether composition has high mechanical performance, easy forming and other advantages, and is suitable for use as package of electronic devices.

The invention discloses a preparation method for mesoporous carbon with a high nitrogen-doped content. With the method, through the synergistic effect of an organic small molecule with a high nitrogen content, phenolic resin and a surfactant, a mesoporous polymer composite is formed, and further through carbonization of the mesoporous polymer composite in a high-temperature nitrogen gas atmosphere, the mesoporous carbon with the high nitrogen-doped content is obtained. The nitrogen-doped mesoporous carbon provided by the invention has high content of nitrogen (13 wt%); the material has specific electric capacity of 262 F g<1> (1M of H2SO4) when current density is 0.2 Ag<1>, and can be used as a material of an electric double layer capacitor.

The invention discloses a use of polymer composition in removing heavy metal ions of fruit and vegetable juice. The polymer composition is a compound comprising functional groups capable of providing lone pair electrons in the structure loaded on a polymer carrier; the compound and the heavy metal ions can be formed into coordination bonds, thereby being capable of efficiently, quickly and conveniently removing heavy metal ions of fruit and vegetable juice. The method is simple and easy to use and quick in effect without the defects of the methods normally used such as adsorptive process method, ion-exchange processing method and chelating resin method, and has very strong specificity for absorbing various heavy metal irons but basically not absorbing the active ingredients in fruit and vegetable juice; the content of the heavy metal irons in fruit and vegetable juice after treatment in the method is obviously reduced; the method can reach Sanitation Standard of Fruit and Vegetable Juice Beverage (GB19297-2003), and protects the environment and has industrialized prospect.

The invention relates to the field of high-molecular material processing and particularly relates to a flame-retardant full-degradation high-molecular compound and a preparation method. The flame-retardant full-degradation high-molecular compound and the preparation method have the advantages that polylactic acid is enhanced and modified by utilizing vegetable fiber, and a halogen-free flame retardant is added to improve the flame-retardant performance, so that the flame-retardant full-degradation high-molecular compound with good performance is obtained.

The invention relates to the material field and provides a polymer composite with plasticity. The polymer composite with plasticity and with plasticine characteristic is synthesized through evaporation-induced self-assembly of a solvent by mixing a mixed surfactant and an organic polymer. The polymer composite is further roasted and the surfactant is removed to obtain an ordered mesoporous polymer of multi-level structure, and the ordered mesoporous polymer is carbonized at high temperature to obtain an ordered mesoporous carbon material of multi-level structure. Being plastic, the shape of the polymer composite is not damaged before and after roasting, the mesoporous polymers and carbon materials of different shapes can be obtained after carrying out post-forming on the polymer composite, and the macro shapes of the mesoporous polymers and carbon materials are not damaged. The obtained carbon materials have the characteristics of open multi-level pore channel structures, high specific surface, large pore volume, uniform mesopore diameter and the like.

The invention belongs to the field of thermosetting polymer materials, and in particular relates to a thermosetting polymer compound, a poly-half-amide supermolecular film and a preparation method thereof. The preparation method comprises the following steps: (1), preparing a paraformaldehyde and nonprotic / water mixed solvent into a suspension, depolymerising, and cooling to room temperature to obtain a formaldehyde reaction solution; (2), dissolving aromatic diamine and / or aromatic triamine in a nonprotic solvent to obtain an aromatic amine reaction solution; and (3), uniformly mixing formaldehyde with the aromatic amine reaction solution, pre-polymerizing, further spreading a film on a horizontal glass plate, and drying and solidifying so as to obtain the film. The film is adjustable in thickness, colourless and transparent; the light transmittance is greater than 90%; the Young modulus, the tensile strength, the breakage elongation and the tensile failure energy of the film can respectively achieve 3-6 GPa, 70-100 MPa, 2-5% and 0.7-2.5 MJ / m<3>; aromatic amine serving as the main raw material in the film can be recycled; and the recovery rate can be above 95%.

The invention discloses an elastic resistance strain piece and a preparation method thereof. The elastic resistance strain piece is high in consistence of tensile properties and stress variations, good in adsorption property, capable of reducing drifting and errors while the rebound resilience of the strain piece self is reduced, relatively small in temperature influence and relatively high in stability. The elastic resistance strain piece comprises a non-conductive macromolecule layer and a conductive macromolecule layer, wherein the non-conductive macromolecule layer is made of a first elastic macromolecule composite material; the conductive macromolecule layer is made of a second elastic macromolecule composite material; the second elastic macromolecule composite material is made of thefirst elastic macromolecule composite material and conductive packing; the first elastic macromolecule composite material is a macromolecule composite material which can form a stable surface after being cured; and the conductive macromolecule layer is cured on the surface of the non-conductive macromolecule layer.

A low cost, viable and modular method to prepare new, highly selective "catalytic membranes" and their use in various types of reactors is described. The membranes are versatile and reusable with negligible catalyst leaching, particularly in the asymmetric hydrogenation of substituted a, ss-unsaturated acids or esters. The membranes comprise a hybrid inorganic / polymeric support material (i) and a molecular catalyst (ii) immobilized onto them, wherein: - (i) consists of a hybrid inorganic / polymeric compound in which inorganic compounds and organic polymers are chemically combined; - the inorganic compound is at least one selected from silicic, tungstic, molybdic and stannic acid compounds; - the organic polymers have hydroxy groups, preferably being polyvinylalcohol (PVA); - (ii) is a preformed metal catalyst, which contains at least one transition metal selected from Ru, Rh, Pd, Ir, Ni, Pt, Au and at least one chiral ligand selected from phosphino, amino and / or amino-phosphino species, preferably DIOP, BINAP Monophos or TMBTP.

The invention discloses a fullerene-macromolecule composite and a preparation method thereof. The preparation method includes the steps of firstly, dissolving macromolecular materials in water and stirring uniformly to obtain a clear solution; then, adding fullerene into the clear solution and subjecting the mixture to ball milling in a low-temperature ball mill; finally, centrifuging ball milling liquid to obtain supernatant liquid, namely the fullerene-macromolecule composite. By the preparation method, solid-liquid composition substitutes for solid-phase composition, so that the problem of loss during transfer of pure-solid materials is solved thoroughly, and preparation cost is further saved.

The invention belongs to the field of thermosetting polymer materials, and particularly relates to a thermosetting polymer compound, a thin film and a preparation method thereof. The preparation method comprises the following steps: 1) preparing an amino graphene aqueous solution; 2) preparing paraformaldehyde and aprotic / water mixed solvent into suspension, depolymerizing, and cooling to the room temperature to obtain formaldehyde reaction liquid; 3) dissolving aromatic diamine and / or aromatic triamine in an aprotic solvent to obtain arylamine reaction liquid; 4) uniformly mixing the formaldehyde reaction liquid and the arylamine reaction liquid with the amino graphene aqueous solution, pre-polymerizing, horizontally paving a film, and curing at a high temperature to prepare the thin film. The thickness of the thin film is adjustable, the mechanical properties of the thin film are excellent, and the Young modulus, the tensile strength, the elongation at break and the tensile failure can respectively reach 3-6 GPa, 90-140 MPa, 3-6% and 2.0-3.0 MJ / m<3>. The main raw materials, namely arylamine and functional graphene of the composite thin film can be recycled, and the recovery rate is higher than 90%.

A thermosoftening surgical bandage containing zinc oxide is prepared from fabric through dissolving the thermoplastic high-molecular composition containing zinc oxide in organic solvent, and coating it on said fabric as substrate.

The invention discloses a ki67 and p16<INK4a> detection kit based on glucan signal amplification. The kit comprises a ki-67 glucan poly-AP labeled antibody, a p16<INK4a> glucan poly-HRP labeled antibody, a DAB color developing solution and an AP color developing solution. According to the kit disclosed by the invention, an enzyme-labeled poly-primary antibody is used for immunodetection; specificconditions for preparing a glucan polyantibody are disclosed; and meanwhile, glucan molecules serve as a supporting framework, the glucan polyantibody is formed by a composite antibody and signal markers, the large number of signal markers are carried so that signal intensity is greatly improved, a use concentration of the antibody is reduced, and non-specific signal interference is avoided. Meanwhile, a macromolecular compound and enzyme are combined at multiple sites so that stable support is provided for natural three-dimensional conformation of the enzyme, stability of the enzyme and the antibody is greatly maintained, and efficient bonding between macromolecules is realized. According to the kit, a use amount of the antibodies is greatly reduced, an operation process and an operationtime are shortened, and the kit has higher color development efficiency and detection sensitivity.

The invention provides a method for regulating components of extracting solution of paper-making-process reconstituted tobacco leaves, and belongs to the technical field of papermaking method remanufactured tobacco leaves. According to the method for remanufacturing the papermaking method tobacco leaf extract solution, chitosan and Arabic gum are utilized to react with sodium carboxymethylcellulose to generate macromolecule complex of a grid-like structure, charged groups on the surface of the complex can selectively lower contents of macromolecular substances in the extract solution of carbohydrate, salt and alkali, starch, protein, amino acid, cellulose, lignin, pectin substances and the like, chemical components of the product are effectively regulated, the advantages that chemical indexes of the papermaking method remanufactured tobacco leaves are controllable are given play to, and actual application value of the remanufactured tobacco leaves is increased.

The present invention relates to shear flow device 100 comprising cell 110, wherein the cell is static and comprises stationary plates 110a and 110b, and movable slide 130. The device of the present invention can be used in methods of orienting molecules for LD measurement and in methods for creating an oriented macromolecule or macromolecule complex.

The invention discloses combined equipment for preparing a polymer compound by a grinding method. The combined equipment comprises a fine crushing subassembly device I provided with a normal-temperature millstone type elastomer fine crusher, or the combination of the fine crushing subassembly device I and one or more than one of the following known assembly devices which are also taken as subassembly devices: a cleaning assembly device II for washing, floating, dehydrating and drying waste plastics, a coarse crushing assembly device III for crushing an elastomer until the particle size is 5 to 30 meshes, a thermal cracking assembly device IV for waste rubber and plastic, and a separation assembly device V with a high-voltage electrostatic field separator. By the combined equipment, the defect that by the conventional hot melt extrusion method, waste plastics and thermoplastic elastomers are inevitably scorched and fume to be degraded when heated for a long time is overcome; and by the scheme, the problem that infusible large particle impurities easily block a net when regenerated miscellaneous waste plastics are hot-extruded to form products is also solved because the infusible large particle impurities in the material are ground.

The invention discloses combined equipment for preparing a polymer compound by a grinding method. The combined equipment comprises a fine crushing subassembly device I provided with a normal-temperature millstone type elastomer fine crusher, or the combination of the fine crushing subassembly device I and one or more than one of the following known assembly devices which are also taken as subassembly devices: a cleaning assembly device II for washing, floating, dehydrating and drying waste plastics, a coarse crushing assembly device III for crushing an elastomer until the particle size is 5 to 30 meshes, a thermal cracking assembly device IV for waste rubber and plastic, and a separation assembly device V with a high-voltage electrostatic field separator. By the combined equipment, the defect that by the conventional hot melt extrusion method, waste plastics and thermoplastic elastomers are inevitably scorched and fume to be degraded when heated for a long time is overcome; and by the scheme, the problem that infusible large particle impurities easily block a net when regenerated miscellaneous waste plastics are hot-extruded to form products is also solved because the infusible large particle impurities in the material are ground.

The invention relates to the technical field of processing of magnesium hydroxide flame retardants and discloses surface modified magnesium hydroxide as well as a preparation method and application thereof. The method comprises the following steps: firstly, carrying out first contact on a modifier I and magnesium hydroxide; secondly, carrying out second contact on a modifier II and a product obtained in the first step, wherein the modifier I is castor oil and the modifier II is phosphate or organic hypophosphorous acid metal salt. The method adopts the castor oil and phosphate compounds for double coating, and has the advantages of simple process, easiness in operation, high controllability and simple equipment; the method has no pollution in the whole process, and conforms to the requirements on energy conservation and environmental protection; in addition, the surface modified magnesium hydroxide prepared by the method has the advantages that the compatibility and thermal stability of the surface modified magnesium hydroxide and high polymer materials are improved; mechanical properties, processing fluidity and the like of high polymer complexes can be significantly improved.

The invention relates to a pretreatment technology for a yarn before dyeing. The pretreatment technology comprises the following steps of (1) taking the yarn, adding a chelating dispersant, a refining agent, alkali, a graft modifier and water, stirring and mixing, wherein the graft modifier is a quaternary ammonium salt polymer complex and the dosage is 2-5% of weight of the yarn; (2) adding a bleaching agent, raising the temperature to 70-90 DEG C and carrying out heat preservation for 30-60min; and (3) cleaning. According to the pretreatment technology for the yarn before dyeing, by adopting the specific graft modifier and combining a specific pretreatment technology, of dyeing and bleaching pretreatment can be synchronously carried out on the yarn under a relatively low temperature condition, the dyeing rate and the glossiness of the yarn are improved, and the pretreatment technology is good in color fastness, low in energy consumption, friendly to environment and low in cost.