16469 results about "Polyester" patented technology

To provide a polyester container having high environmental load reduction properties.SOLUTION: A polyester container is composed of polyester. In a differential molecular weight distribution obtained by measuring the polyester container by a gel permeation chromatograph, when each peak is subjected to waveform separation, the proportion of a peak area of a component having a peak top present in a range of 2500 or more and 6400 or less in molecular weight, is 6.00×10-4 or less relative to a total component peak area.SELECTED DRAWING: Figure 1

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further amount of a first organic compound in a volume section V2. At least one impurity is present in the volume section V2, and the volume section V2 has a first zone and a further zone. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced in the volume section V3 to obtain a first intermediate mixture. The first intermediate mixture comprisesa first intermediate product; andthe further organic compound.A relative ratio of a particle count per area of the at least one impurity in the first zone to a particle count per area of the at least one impurity in the further zone is equal to or greater than 10.

The invention provides a graphene antibacterial polyester yarn production control platform based on intelligent algorithm optimization, and relates to the technical field of automation control, and the graphene antibacterial polyester yarn production control platform comprises the steps that a quality control analysis module obtains a production operation parameter set of graphene antibacterial polyester yarns for quality control analysis, and sets product performance indexes; the optimization model building module is used for building an objective function and root and building a multi-objective optimization model; the process optimization module performs process optimization by using a multi-objective optimization model to obtain production optimization parameters; the operation change analysis module performs operation control monitoring based on the production optimization parameters and draws a production parameter change trend chart; the product quality prediction module performs product quality prediction through reinforcement learning; the control strategy making module makes a production control strategy based on the product quality prediction data set. The technical problems of product quality fluctuation and cost control difficulty caused by lack of real-time accurate adjustment means for production parameters in the prior art are solved, and the production cost is reduced while the product quality is improved.

The invention discloses a textile fabric polyester fiber detection method based on spectral imaging and curve fitting, and relates to the technical field of hyperspectral imaging analysis, and the method comprises the steps: carrying out the characteristic decomposition and principal component analysis of a reflectivity function after baseline correction, and obtaining a characteristic curve; extracting feature information of the hyperspectral image, and fusing the feature information of the hyperspectral image with the feature curve to generate a multi-dimensional feature vector; and constructing a hyperspectral fiber content detection model, inputting the multi-dimensional feature vector and the feature parameter vector into the hyperspectral fiber content detection model, and generating the polyester fiber content. Not only are the problems of background noise and drift interference solved, but also the multi-dimensional characteristics of the hyperspectral data are fully mined. The content of the polyester fibers in the waste textile fabrics can be efficiently detected on line. Finally, according to the method, the detection precision and reliability are remarkably improved, and an efficient, environment-friendly and accurate technical means is provided for resource utilization of the waste textile fabrics.

The invention provides a flame-retardant heat-insulating fabric for fire-fighting clothes and a preparation process thereof, and belongs to the technical field of fire-fighting fabrics. The preparation process comprises the following steps: preparing coated modified ammonium polyphosphate; modified expanded perlite; preparing a flame-retardant outer-layer fabric; preparing a heat insulation core layer fabric; preparing an antibacterial inner layer fabric; and bonding. The flame-retardant heat-insulating fabric for the fire-fighting clothes comprises a flame-retardant outer-layer fabric, a heat-insulating core-layer fabric and an antibacterial inner-layer fabric, ammonium polyphosphate is dispersed in deionized water, polyethyleneimine is added under the acidic condition, amino on the polyethyleneimine and ammonia ions of the ammonium polyphosphate are subjected to an ion exchange reaction, and the flame-retardant heat-insulating fabric for the fire-fighting clothes is obtained. According to the flame-retardant outer-layer fabric, ammonium polyphosphate is preliminarily coated, then a hydroxyethylidene diphosphonic acid solution is added for a salt forming reaction, coated modified ammonium polyphosphate with a core-shell structure is prepared, the coated modified ammonium polyphosphate and polyester powder are mixed and granulated, then the flame-retardant outer-layer fabric is prepared, and the flame-retardant property of the flame-retardant outer-layer fabric can be effectively improved.

The invention discloses a quality tracing method and platform for polyester fiber production, and relates to the technical field of polyester fiber production, and the method comprises the steps: carrying out the sensor deployment and production sensing monitoring of N fiber production nodes, and obtaining the production sensing data flow of N nodes; performing mapping storage on the N node production sensing data streams based on N production node equipment blocks to obtain N node production data storage blocks; performing correlation analysis on the polyester fiber quality detection database, and constructing a polyester fiber quality anomaly detection forest; and performing polyester fiber production quality tracing based on the N node production data storage blocks and the polyester fiber quality anomaly detection forest. The technical effects that intelligent quality traceability and targeted quality anomaly detection of multi-polyester fiber production are achieved, the traceability integrity of production quality data is ensured, and then the quality traceability accuracy and traceability efficiency are improved are achieved.

The invention relates to an antistatic PET (Polyethylene Terephthalate) base film for preparing a polaroid release film and a preparation method thereof, the release film base film is prepared by taking an optical-grade PET slice as a main body, adding modified PET with a specific structure and a modified SiO2 filler, and carrying out co-extrusion casting, a unique three-section stretching process and coating with a coating liquid. According to the invention, material modification and process improvement are carried out, specifically, an optical-grade PET slice is taken as a main body material, modified PET and a modified SiO2 filler with a specific structure are added, a film is prepared through co-extrusion casting and a unique three-section stretching process, and then the surface of the film is coated with a layer of antistatic coating liquid, so that the antistatic film is obtained. The finally prepared base film has low alignment angle, low transverse hot shrinkage rate and high surface adhesion, keeps the characteristics of high light transmittance and low haze of an optical-grade polyester film, endows the film with certain antistatic property, and is particularly suitable for being used as a release film of a high-end polaroid.

The invention relates to the technical field of regeneration of waste polyester, in particular to a polyester micro-plastic recycling and impurity removing method and equipment. According to the method, the irradiation technology is adopted for treating the polyester micro-plastic, the polyvinyl chloride is removed by combining electron beam irradiation with the specific gravity method, the radiation dosage and time are accurately controlled, the polyvinyl chloride in the polyester micro-plastic can be effectively removed, the color of the polyester micro-plastic is not affected, and the treated polyester micro-plastic can meet the spinning requirement. The equipment is used for realizing the impurity removal method and comprises irradiation treatment equipment, a separation tank, a cleaning tank, a dehydrator and a drying tower. The equipment is simple in structure and convenient to operate, the radiation dosage and time can be accurately controlled in the impurity removal process, the surface temperature of the polyester micro-plastic is effectively controlled, and production and popularization are easy.

The invention relates to the field of textile materials, and particularly discloses a graphene enhanced polyester yarn and a preparation method thereof.The preparation method comprises the following steps that silicon dioxide aerogel serves as a porous carrier to be loaded with graphene, and a graphene-porous carrier composite material is prepared; the graphene-porous carrier composite material is subjected to modification treatment through vinyl trimethoxy silane and 3-amino propyl triethoxy silane, and then a modified graphene composite material is prepared; reacting the modified graphene composite material, a styrene monomer, an acrylate monomer and an initiator to prepare modified graphene; mixing the prepared modified graphene with polyester chips, and then carrying out melt spinning to prepare graphene enhanced polyester yarns; the invention further discloses the graphene enhanced polyester yarn prepared by adopting the preparation method. The preparation method has the characteristics that the dispersion of the graphene in the polyester is improved, and the direct interface compatibility of the graphene and the polyester fiber is improved, so that the mechanical property of the polyester yarn is improved.

The invention provides a polyester fabric production whole process monitoring management method and system. The method belongs to the technical field of production process monitoring. The method comprises the following steps: deploying various types of sensors at each key node of a polyester fabric production line; various physical parameters and environment information related to polyester fabric production are collected in real time; meanwhile, an operation state monitoring system of the production equipment is integrated to obtain equipment data; carrying out deep fusion processing on multi-source heterogeneous data obtained from the polyester fabric production holographic sensing architecture; constructing a data association model; comprehensively evaluating the production situation based on the model in combination with the technological process and the quality standard of polyester fabric production; generating a production situation assessment report through production situation assessment; the whole-process data tracing system provides a traceable basis for quality disputes, raw material problems and the like, enhances the capability of controlling supply chain risks, meets the requirements of downstream customers on product traceability, and improves the brand credibility.

The invention discloses an intelligent identification and sorting method for waste textiles, and belongs to the technical field of textile recovery. An intelligent identification and sorting method for waste textiles comprises the steps of scanning recycled waste textiles by using a hyperspectral camera, obtaining hyperspectral image data of the waste textiles, preprocessing the obtained hyperspectral image data to improve data quality, constructing a material identification model, inputting dimension-reduced hyperspectral features into the model, and identifying the waste textiles according to the dimension-reduced hyperspectral features. Through training and learning spectral feature differences of different materials, the materials of the waste textiles are accurately identified; recording the surface condition of the waste spinning through a monitoring device, and analyzing the influence of the surface condition on spectrum identification; according to the material recognition result and the surface recognition result, sorting equipment is controlled to carry out sorting operation on polyester textiles in the waste textiles; a sorting result is fed back to a control system, the sorting accuracy rate is recorded, and the performance of the recognition model and the sorting equipment is evaluated and optimized.

The invention discloses a cold-resistant and damp-heat-resistant PETG / PP alloy floor base material and a preparation method thereof, and a floor and a preparation method thereof. The floor base material comprises the following raw materials in parts by mass: 5-20 parts of PETG resin, 2-8 parts of PP resin, 1-5 parts of a compatilizer, 3-10 parts of a flexibilizer, 20-70 parts of calcium carbonate, 3-10 parts of a modified inorganic fibrous filler, 0.2-2 parts of a chain extender, 1-3 parts of a lubricant, 0.5-2 parts of an antioxidant and 0.5-3 parts of an anti-hydrolysis agent. According to the cold-resistant and damp-heat-resistant PETG / PP alloy floor base material and the preparation method thereof as well as the floor and the preparation method thereof, the dimensional stability, cold resistance and damp-heat resistance of a polyester environment-friendly floor material can be improved.

The invention relates to the technical field of fibers, and discloses an ultrahigh-moisture-absorption anti-static polyester fiber and a preparation method thereof. The preparation method comprises the following steps: carrying out nucleophilic substitution reaction on 1, 2-benzisothiazolin-3-one and methacryloyl chloride to obtain modified benzisothiazolinone; the preparation method comprises the following steps: carrying out nucleophilic substitution reaction on phosphonitrilic chloride trimer and allylamine, and then carrying out nucleophilic substitution reaction on the phosphonitrilic chloride trimer and melamine again to obtain modified cyclophosphazene; the preparation method comprises the following steps: mixing gamma-methacryloxypropyltrimethoxysilane with aluminum zinc oxide for reaction, and mixing the obtained modified aluminum zinc oxide with modified benzisothiazolinone and modified cyclophosphazene for copolymerization in the presence of an initiator to obtain a flame-retardant antibacterial additive; mixing the flame-retardant antibacterial additive, calcium carbonate and polyethylene glycol terephthalate, performing melt spinning, and performing acid treatment to obtain modified polyester fibers; dipping the modified polyester fiber in a finishing liquid containing modified chitosan to obtain the ultrahigh-moisture-absorption anti-static polyester fiber.

The invention belongs to the technical field of flame-retardant macromolecules, and particularly relates to intrinsic heat-conducting flame-retardant recycled epoxy resin and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out a reaction on diethanol amine and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) to obtain an intermediate A; and (2) carrying out condensation polymerization on the intermediate A and phenylphosphonic acid to prepare the phosphate-terminated polyester flame retardant (PEF). And (3) carrying out epoxidation on 4, 4 '-biphenol to prepare the liquid crystal epoxy precursor LEP. And (4) mixing PEF, LEP and 3, 3 '-dithiodipropionic acid, and heating and curing to prepare the epoxy resin. The prepared epoxy resin has intrinsic heat conduction, flame retardance and efficient recoverability, and is a high polymer material with great potential.

The invention relates to the technical field of high-performance polyester, in particular to a high-strength low-shrinkage polyester fiber and a preparation method thereof. The defects that existing polyester fibers are poor in strength and shrinkage resistance are overcome. The preparation method comprises the following steps: mixing the modified resin, the modified nano silicon dioxide, the composite antioxidant, the composite nucleating agent and the composite lubricant, and carrying out melt spinning. Wherein the modified resin is prepared from the following raw materials: dimethyl terephthalate, isophthalic acid, ethylene glycol and isosorbide; the modified nano silicon dioxide comprises nano silicon dioxide, KH570 and silver nitrate; the composite antioxidant comprises an antioxidant 1010, an antioxidant 168 and an antioxidant 1222; the composite nucleating agent comprises sodium benzoate and nano montmorillonite; the composite lubricant is prepared from ethylene bis stearamide and pentaerythritol stearate. The prepared polyester fiber is high in strength, high in shrinkage resistance and suitable for manufacturing of outdoor equipment.

The invention belongs to the technical field of textiles, and particularly discloses an antibacterial cool-feeling polyester fiber containing plant extracts, a textile and a preparation method of the antibacterial cool-feeling polyester fiber. The antibacterial cool-feeling polyester fiber containing the plant extract comprises polyester and composite functional cellulose aerogel, the composite functional cellulose aerogel comprises cellulose aerogel, aluminum nitride and the plant extract, the aluminum nitride and the plant extract are loaded on the cellulose aerogel, and the plant extract comprises polygonum cuspidatum extract. The polyester fiber has a good antibacterial cool feeling characteristic and can be widely applied to the fields of household articles, clothes and the like.

The invention discloses a high-barrier polycrystalline silicon packaging film and a preparation method thereof, and relates to the technical field of packaging materials. The high-barrier polycrystalline silicon packaging film consists of a polyester film carrier and functional slurry, the functional slurry is prepared from the following raw materials in parts by weight: 15 to 25 parts of ethylene-vinyl alcohol copolymer, 10 to 18 parts of polyvinylidene chloride, 5 to 10 parts of modified nano montmorillonite, 8 to 15 parts of modified polylactic acid, 3 to 6 parts of tributyl citrate, 1 to 3 parts of antioxidant 1010, 1 to 3 parts of ultraviolet light absorber UV-531, 0.5 to 1.5 parts of nucleating agent NA-11, 1 to 2 parts of silane coupling agent KH-550 and 3 to 7 parts of modified silicon dioxide aerogel; 2 to 5 parts of vinyl trimethoxy silane, 1 to 3 parts of nano silver and 20 to 30 parts of deionized water. The high-barrier polycrystalline silicon packaging film has excellent barrier performance, and can effectively block oxygen, water vapor and the like. The polycrystalline silicon packaging film is good in mechanical performance, not prone to damage, antibacterial, antioxidant and anti-ultraviolet, the quality guarantee period of polycrystalline silicon can be prolonged, the product quality can be guaranteed, and the polycrystalline silicon packaging film has great application value in the field of polycrystalline silicon packaging.

The invention discloses an INS film with excellent comprehensive performance, which comprises a surface protection layer, an upper base material layer, a printing ink layer, a bonding glue layer and a lower base material layer which are sequentially superposed from top to bottom, the surface protection layer is prepared from the following raw materials in parts by weight: 75-135 parts of polyester polyol resin, 30-60 parts of hydroxy acrylic resin, 2-25 parts of an isocyanate curing agent, 2-17 parts of a closed curing agent, 2-25 parts of a chain extender, 0.5-8 parts of a catalyst, 0.5-2 parts of an antioxidant and 0.5-3 parts of an ultraviolet light absorber. According to the surface protection layer of the INS film, the high-temperature condition of a high-temperature plastic uptake procedure of the INS film in preparation of INS parts is well utilized, so that the closed curing agent is effectively excited to perform secondary cross-linking curing reaction. The INS film is good in surface chemical reagent resistance, has the characteristics of high heat stretch rate, high hardness and scratch resistance, has excellent ultraviolet irradiation yellowing resistance, and is particularly suitable for the field of in-mold decoration.

The invention relates to the technical field of non-woven fabrics, in particular to a production process of a functional fiber woven non-woven fabric body, the non-woven fabric body comprises a non-woven fabric base body, middle layers are arranged on the upper portion and the lower portion of the non-woven fabric base body, and outer layer bodies are arranged on the outer sides of the middle layers; the middle layer is compounded with the upper part and the lower part of the non-woven fabric base body through polyurethane glue, and the dosage of the polyurethane glue is 20g / m < 2 >; the non-woven fabric body is formed by mutually matching a non-woven fabric base body, a middle layer and an outer layer body, the non-woven fabric base body is formed by weaving first modified spandex fibers and polyester fibers, the middle layer is formed by interweaving second modified polyester fibers and hemp fibers, and the outer layer body is formed by spraying an outer layer agent. The product is excellent in wear resistance, stain resistance, heat preservation and breaking strength, remarkable in comprehensive coordination effect and excellent in washing resistance and ultraviolet stability resistance.

The invention provides a method for recovering a BHET monomer from a waste polyester textile alcoholysis solution, and is characterized in that the recovery method comprises the following steps: (1) filtering: mixing the waste polyester textile alcoholysis solution with water under a stirring condition, and filtering at 55-70 DEG C; and (2) cooling crystallization: under a stirring condition, carrying out primary cooling on the filtrate obtained by filtering in the step (1) from 55-70 DEG C to 45-55 DEG C, then adding a BHET seed crystal, then carrying out secondary cooling to 5-15 DEG C, and maintaining the temperature for 20-60 min to obtain the BHET monomer. The mixed solution cooling crystallization method is developed on the basis of complexity of components of the waste polyester textile fabric, the problems that in the conventional production process, a BHET crystal product is low in quality, prone to scaling, difficult to filter and dry and the like are solved, and the obtained BHET product is large in particle size, narrow in particle size distribution, high in purity, good in fluidity and high in stability.

The invention discloses an aniline pyridine amino-aluminum catalyst and a preparation method and application thereof, belonging to the technical field of polyester catalysts. The invention can directly utilize an aniline pyridine amino ligand to react with an aluminum source, and directly drain the solvent after the reaction to obtain a corresponding catalyst. The invention also utilizes the synthesized catalyst to catalyze monomers such as cyclic esters and lactones to prepare biodegradable aliphatic polyesters, and the monomer conversion rate is greater than 96%. Compared with the currently commercialized stannous isooctanoate catalyst, the aniline pyridine amino-aluminum catalyst provided by the invention has higher catalytic activity and lower biological toxicity, and has certain application prospects.

The invention discloses feruloyl esterase fermentation preparation and application of feruloyl esterase in polyester plastic degradation, and belongs to the field of environmental science. According to the method, feruloyl esterase FAE4 derived from Anerocephalum thermophilum is prepared through fermentation, and is compounded with polyester degrading enzymes which are different in source and are used for degrading polyester plastic oligomers, so that a compound reaction system which remarkably improves the degradation efficiency of poly (butylene adipate-co-terephthalate) or poly (butylene adipate-co-terephthalate) (PBAT) and the content proportion of a final product is obtained; good industrial prospects are realized.

The invention relates to the technical field of polyester production control, in particular to an intelligent control method and system for a PET short fiber traction-cutting production line based on a PLC, a storage medium and a program. According to the method, a dual-network architecture in which a high-speed bus and an information bus cooperate is constructed, ARX tension prediction, a Kalman observer, resonance notch, energy efficiency constraint model predictive control (e-MPC) and two-degree-of-freedom speed feed-forward compensation are fused, and high-precision tension control and resonance suppression of the traction-cut-off linkage system are achieved. The method supports redundancy switching and self-calibration of the tension sensor, has millisecond-level response and + / -1.5% steady-state fluctuation control capability, remarkably improves control stability and energy-saving level, and is suitable for intelligent upgrading of a high-performance PET short fiber continuous production line.

The invention provides a polyester-based composite functional master batch as well as a preparation method and application thereof. The polyester-based composite functional master batch is prepared from the following components in parts by weight: 54 to 100 parts of polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, 4 to 27 parts of a lubricating agent, 0.5 to 2 parts of a compatilizer, 0.5 to 10 parts of a light diffusion agent, 1 to 8 parts of a dispersing agent and 4 to 10 parts of tackifying resin. The polyester-based composite functional master batch provided by the invention is added in the process of processing and forming a polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester-based light diffusion plate, so that the flowability and the demolding property can be improved, and the prepared product has excellent light transmittance and haze at the same time.

To provide a cation-dyeable polyester fiber structure, a production method of the same, and a uniform for medical use.SOLUTION: A cation-dyeable polyester fiber structure includes a cationic dye, a quinoline compound, and an ultraviolet absorber, where 0.03 mass% or more and 0.80 mass% or less of the quinoline compound is included to a mass of the cation-dyeable polyester fiber structure, a color difference ΔE between before and after irradiating the cation-dyeable polyester fiber structure with ultraviolet carbon arc lamplight is 2.0 or lower, and an antibacterial activity value A50 after 50 times of high temperature acceleration washing is larger than a standard cloth growth value F in an antibacterial evaluation method described in an SEK mark textile product certification standard.SELECTED DRAWING: None

Provided in the present invention is a polyester polymer containing a cyclic imide structure. A cyclic imide side group or side chain is introduced into a polyester polymer by means of a diacid monomer or a diol monomer, thereby overcoming the defects of the polyester polymer being hard and brittle, improving the comprehensive mechanical properties of toughness, etc., thereof, and improving the heat resistance of the polyester polymer.

The invention relates to the technical field of papermaking, in particular to a papermaking filler wrapping agent and a preparation method and application thereof. The papermaking filler wrapping agent comprises a cationic polyester polyacrylamide emulsion and a high molecular weight water-soluble polymer. The papermaking filler wrapping agent has the advantages that the papermaking filler wrapping agent is insensitive to shearing action, the retention rate of filler such as calcium carbonate is high, the paper strength is not reduced, and produced paper products are good in batch stability.

The invention relates to a high-antistatic crude oil type polyester FDY spinning oil agent and a preparation method thereof, a composition of sodium lauryl polyoxyethylene ether sulfate and potassium lauryl phosphate is used as a main antistatic agent, an antistatic smoothing agent with sulfonated chitosan and PEG800 as key components is adopted, the antistatic smoothing agent and the main antistatic agent have a synergistic effect, and the antistatic property of the spinning oil agent is improved. The overall antistatic property of the oiling agent is enhanced. The preparation method comprises the following steps: pre-balancing the materials at 40-50 DEG C before charging; then, sequentially adding an antistatic smoothing agent, a penetrating agent, a bundling agent, a main antistatic agent and an anti-coking agent, and adding materials while stirring; and finally, controlling the temperature of the reaction kettle to be 40-50 DEG C and the stirring speed to be 500-700r / min, and reacting for 0.5-1.5 hours. The crude oil type polyester FDY oiling agent is excellent in antistatic property, and polyester FDY spinning can be carried out in a crude oil direct oiling mode at the ultrahigh spinning speed of 4000 m / min.

The invention belongs to the field of dielectric materials and dielectric energy storage, and particularly relates to a fluorene polyester and polyaryletherurea blended dielectric energy storage polymer film and a preparation method thereof. The preparation method specifically comprises the following steps: adding fluorene polyester and polyaryletherurea into a solvent, fully dissolving to obtain a mixed solution, uniformly coating a substrate with the mixed solution, and then drying; and carrying out vacuum annealing on the dried film, and then carrying out curing treatment to strip the film from the substrate to obtain the fluorene polyester and polyaryletherurea blended dielectric energy storage polymer film, thereby improving the charge-discharge efficiency and high discharge energy density of the polymer under high temperature and high field, and solving the problems of high electric leakage loss and low cost of the existing polymer film. And the charging and discharging efficiency is low.

The invention provides a polyester polyol production method, a polyester polyol production device and application, according to the polyester polyol production method, single-stage gas-liquid separation in the prior art is improved, and at least two-stage series gas-liquid separation is carried out in the esterification reaction process, so that the total production time is shortened, the production efficiency is improved, and the production cost is reduced. By-products such as polyether can be effectively removed, and the product quality stability of the polyester polyol can be effectively improved.