147 results about "Binary acid" patented technology

The invention provides an ultraviolet-cured low-refractive-index UV resin and a preparation method thereof, and the preparation method comprises the following steps: A) mixing epoxy resin, fluorine-modified binary acid, a first catalyst, an antioxidant and a polymerization inhibitor, and carrying out a reaction to obtain a first product; b) mixing the first product, modified acrylate and a coupling agent, and reacting to obtain a second product; and C) mixing the second product with a modified acrylate monomer to obtain the UV-cured low-refractive-index UV resin. The perfluoropolyether and the silicon-containing hydroxyl acrylate are modified, so that the problems of poor compatibility, non-transparent paint film and the like caused by directly grafting the perfluoropolyether and the silicon-containing hydroxyl acrylate into a structural system are greatly improved, and the perfluoropolyether and the silicon-containing hydroxyl acrylate have obvious advantages in the application direction with requirements on the transparency of the paint film. The stability of the resin can be improved, so that the resin is not prone to gelling during production, and the problems of layering and the like are not prone to occurring during use.

The invention belongs to the technical field of polymer materials, and particularly relates to a polyaromatic-carbonic acid-aliphatic copolyester production method which comprises the following steps: mixing aromatic dibasic acid and aliphatic dihydric alcohol, feeding into a first esterification kettle, and adding an esterification catalyst for esterification reaction to obtain an esterification product; uniformly mixing aliphatic dihydric alcohol, feeding the mixture into a second esterification kettle, adding diester carbonate and a transesterification catalyst into the second esterification kettle, reacting to obtain a transesterification product, and feeding the transesterification product into a demonomerisation kettle to obtain a demonomerisation product; mixing the esterification product and the demonomerisation product with a polycondensation catalyst and a stabilizer, shearing and homogenizing, feeding into a pre-polycondensation kettle for reaction to obtain a pre-polycondensation product, feeding the pre-polycondensation product into a final polycondensation kettle for reaction to obtain a copolymer, and performing water-cooling granulation to obtain a copolyester product. According to the production method provided by the invention, the final polycondensation time can be shortened, and the weight-average molecular weight and the mechanical strength of the prepared copolyester are improved.

The invention discloses a degradable bio-based polyurethane wood protective coating. The coating comprises the following components: 40-60 parts of modified bio-based polyester polyol, 10-20 parts of a cross-linking agent, 3-8 parts of an antibacterial agent, 1-3 parts of a weather-resistant agent, 2-5 parts of a hydrolysis stabilizer, 20-30 parts of a solvent, 1-3 parts of a coupling agent, 0.5-1.5 parts of a leveling agent and 0.5-1.5 parts of a defoaming agent. The preparation method of the degradable bio-based polyurethane wood protective coating comprises the following steps: firstly, esterifying binary acid, dihydric alcohol and renewable biomass resources to prepare bio-based polyester polyol, then modifying the bio-based polyester polyol by using a hydrophobic modifier, finally mixing and dispersing the bio-based polyester polyol with other auxiliaries uniformly, and curing to obtain the degradable bio-based polyurethane wood protective coating. The coating has a static water contact angle of 113 degrees at most after being coated, the QUV aging life reaches 480 h, the antibacterial rate reaches 90% at most, the 90-day compost degradation weight loss rate reaches 60% at most, and the coating is environmentally friendly, low in VOC emission and suitable for efficient and durable protection of wood. The invention also provides an application of the degradable bio-based polyurethane wood protective coating.

The invention provides a preparation method of modified epoxy acrylate resin, which comprises the following steps: (1) mixing epoxy-terminated polyisoprene liquid rubber, unsaturated binary acid and a catalyst A for reaction A, and then adding polyol and a catalyst B for reaction B to obtain a modifier; and (2) mixing epoxy resin, unsaturated monocarboxylic acid, a catalyst A and a polymerization inhibitor for reaction C, then adding the modifier and the cross-linking agent in the step (1), and uniformly mixing to obtain the modified epoxy acrylate resin. The synthetic process is simple, the reaction endpoint is clear, the resin toughness is improved, the resin curing shrinkage rate is reduced, and the wettability with glass fibers is improved.

This invention mainly provides a mechanochromic polyester polyol, its preparation method, and its uses. The mechanochromic polyester polyol is prepared by esterification and polycondensation reactions of raw materials comprising 100 moles of a diacid / anhydride, 110-400 moles of a polyol, and 5-30 moles of a trihydroxyrhodamine derivative. The polyester polyol prepared by this invention contains mechanosensitive groups, aromatic rings, and a bialicyclic structure. The resulting polyurethane material exhibits excellent mechanochromic properties and high wear resistance.

The invention provides a modified polyamide resin and a preparation method thereof, the modified polyamide resin comprises a structural unit derived from binary acid and diamine, and an end-capping structure derived from an oxetane compound of formula (I): (I) wherein R1 is C1-C6 alkyl, R2 is C1-C12 hydroxyalkyl or C2-C6 alkyl interrupted by an ether bond; wherein the molar ratio of the diamine to the binary acid is 1: (1-1.01); the mass of the oxetane compound is 1-3% of the mass of the modified polyamide resin; the number-average molecular weight of the modified polyamide resin is 25000 to 35000.

The application discloses a kind of high-temperature-resistant nylon copolymer and preparation method thereof, belong to high-temperature-resistant nylon field.The preparation method provided by the application includes the following steps: binary acid, binary amine, antioxidant, end-capping agent and catalyst are added into polymerization kettle to carry out salt making reaction, obtain salt solution;The salt solution is cooled, filtered, dried, and high-temperature-resistant nylon salt is obtained;High-temperature-resistant nylon salt is added into double-stage double-screw extruder, pre-polymerization is carried out in the first-stage double-screw extruder, and tackifying reaction is carried out in the second-stage double-screw extruder, and the finally extruded material is high-temperature-resistant nylon copolymer.The application carries out pre-polymerization and tackifying reaction by introducing double-stage double-screw extruder, based on the good blending and shearing effect of double screw, can promote the progress of pre-polymerization and tackifying reaction, can effectively reduce production energy consumption, and production efficiency is high, process condition is easy to control, and product stability is good.

The invention discloses bio-based unsaturated polyester resin for a high-thermal-conductivity powder coating, a preparation method of the bio-based unsaturated polyester resin, a powder coating composition and a high-thermal-conductivity coating. The bio-based unsaturated polyester resin for the high-thermal-conductivity powder coating is characterized by comprising the following components: A) unsaturated binary acid / anhydride; b) saturated binary acid / anhydride; c) a diol comprising from 30 to 70 mol% of isosorbide, from 20 to 50 mol% of bio-based 1, 3-propanediol and / or 1, 4-butanediol, and from 0 to 20 mol% of an auxiliary diol selected from one or more of ethylene glycol, neopentyl glycol, hydrogenated bisphenol A; d) an esterification catalyst; and a polymerization inhibitor. According to the bio-based unsaturated polyester resin for the high-thermal-conductivity powder coating, through unconventional bio-based monomers and a special molecular structure design, on the premise of ensuring proper Tg and processability, consideration of high bio-based content and high thermal conductivity is realized.

The invention discloses a hot-melt polyester with high washing resistance, which is prepared from the following raw materials: a binary acid composition, a dihydric alcohol composition, an antioxidant and a catalyst, and the molar ratio of the binary acid composition to the dihydric alcohol composition is 1: (1.8-2.2). According to the invention, the hydrophobicity and structural stability of polyester can be obviously improved, so that the reflective layer is not easy to peel off in the washing process, and good bonding strength and retroreflection coefficient are maintained after washing. The retroreflection coefficient is 180-300 cd.lx <-1 >. M <-2 > and the bonding strength is 1.2-1.8 MPa after the reflective material is washed for 50 times by an ISO 15797-part4 method, so that the reflective material meets the requirements of keeping high washing resistance and high brightness from a common mark to a high-end protective reflective material, and has a wide application prospect.

This invention discloses a method and system for the continuous production of long-chain polyamides. The method includes: (1) feeding a diacid and a diamine into a prepolymerization reactor for a prepolymerization reaction, wherein the prepolymerization reactor is a horizontal screw reactor; (2) evaporating and dehydrating the product of the prepolymerization reaction; and (3) the output from step (2) entering a final polymerization reactor for continuous final polycondensation. The long-chain polyamides prepared by this method and system have a narrow molecular weight distribution, low viscosity, and stable performance. In particular, compared with batch methods, the process has a high degree of automation and high production efficiency.

The invention discloses a biodegradable anti-aging agent as well as a preparation method and application thereof, and belongs to the field of biodegradable high polymer materials. Dibasic acid, dihydric alcohol and an acid compound containing a hindered phenol structure or an ester derivative of the acid compound are used as raw materials, esterification and condensation polymerization are performed, and then esterification or ester exchange reaction is performed to prepare the macromolecular anti-aging agent, so that high dispersity and migration resistance are realized; the anti-aging agent and the biodegradable resin are mixed and directly subjected to blow molding, film forming, extrusion casting and other melt forming, the hot working process is simplified, and the loss of material mechanics and aging resistance is reduced; the phenolic hydroxyl group can capture free radicals, so that the aging resistance of the biodegradable material is remarkably improved, and the service life of the material is prolonged. The prepared anti-aging biodegradable material can be applied to thin film products, and is particularly suitable for high-performance degradable mulching films and environment-friendly packaging materials.

The application provides a polyester fiber composite hot melt batting, a preparation method thereof and a quilt. The preparation method comprises the following steps: S1. mixing diacid, dihydric alcohol and antimony trioxide, and performing esterification reaction in a protective gas atmosphere, dehydration, adding trimethyl phosphate, and performing polycondensation reaction; the diacid comprises terephthalic acid, isophthalic acid and adipic acid, and the dihydric alcohol comprises diethylene glycol and ethylene glycol; the melt is extruded, cooled, and cut into pieces; the modified polyester piece is vacuum dried and then melt-spun and stretched; S2. the modified polyester fiber is made into a fiber web together with polyester fiber and cotton fiber; S3. three layers of the fiber web are stacked and hot-pressed, and the molten modified polyester fiber bonds the three layers of the fiber web together to form a batting. The batting is safe and environmentally friendly, and the problem of environmental pollution caused by the use of adhesive in the preparation process of the synthetic batting in the prior art is avoided.

The invention discloses a modified PGA degradable material and a preparation method thereof, and belongs to the technical field of polyglycolic acid (PGA) preparation. The preparation method comprises the following steps: carrying out an esterification reaction on a mixed solution containing raw materials, an auxiliary agent and a catalyst until the mixed solution is clear and transparent, and then carrying out a condensation polymerization reaction to obtain the modified PGA degradable material, the raw material is glycollic acid and / or glycollate; the auxiliary agent is a polybasic acid auxiliary agent and / or a polyhydric alcohol auxiliary agent. Through use of the binary acid and dihydric alcohol combined auxiliary agent, the effects of reducing the melting point of the PGA and widening the processing window of the PGA are achieved, so that the PGA is smoother in the processing and forming process.

The present invention relates to a process for preparing a polyester carbonate on the basis of cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one further aliphatic dihydroxy compound, to a polyester carbonate and to a molding compound and a molded product containing the polyester carbonate. The polyester carbonates according to the invention are characterized by good mechanical properties and molecular weights.

The invention relates to a multiphase synergistic high-strength and high-elasticity polyester elastomer as well as a preparation method and application thereof, and belongs to the technical field of high polymer material synthesis. The preparation method comprises the following steps: weighing dibasic acid I, dihydric alcohol and hydroxyl-terminated polyether, carrying out esterification reaction on the carboxyl-terminated polyether and the hydroxyl-terminated polyether to form an ester, and carrying out transesterification reaction on the hydroxyl-terminated polyether of the ester to prepare a polyester oligomer; adding caprolactam, carrying out a ring-opening reaction to generate aminocaproic acid, and carrying out an esterification reaction on aminocaproic acid and part of the polyester oligomer to form an amino-terminated and hydroxyl-terminated multi-component oligomer; adding binary acid II and a solvent, and carrying out salt forming reaction on the terminal carboxyl group and the terminal amino group at low temperature; and carrying out condensation polymerization in three forms, namely ammonium salt dehydration to form amido bonds, dehydration of terminal carboxyl groups and terminal hydroxyl groups to form ester bonds, and dihydric alcohol removal between the terminal hydroxyl groups to form ester bonds, so as to prepare the multi-block polyester elastomer. According to the invention, the interaction of hydrogen bonds is enhanced, and the tensile strength, tensile modulus and elastic recovery capability of the elastomer are improved.

The application provides a kind of bio-based polyamide polyester and its preparation method and application.The bio-based polyamide polyester is synthesized by using diacid containing amide bond, hydrophobic side chain and biological carbon atom, wherein the hydrophobic side chain reduces the crystallinity of the polyamide polyester and improves its optical transparency; the amide bond gives it excellent temperature resistance, wear resistance and mechanical properties, and the ester bond gives it good impact resistance, higher modulus and strength. The bio-based polyamide polyester provided by the application has the advantages of both engineering plastic polyamide and general plastic polyester, and is a new type of bio-based polymer material, which has potential application value in packaging materials or solar panels and other fields.

This invention relates to the field of polyesters, and discloses a copolyester, its preparation method, and its application. The copolyester contains structural unit A as shown in formula (I), structural unit B as shown in formula (II), and structural unit C as shown in formula (III). The preparation method includes: (1) under esterification reaction conditions, mixing a modified monomer having the structure shown in formula (I), a diacid monomer having the structure shown in formula (II), a diol monomer having the structure shown in formula (III), and a catalyst to carry out a first-stage reaction to obtain a prepolymer; (2) under polycondensation reaction conditions, carrying out a second-stage reaction on the prepolymer. This copolyester has good mechanical properties while improving its flame retardant properties, and can also improve the damping effect. Formula (I); Formula (II); Formula (III).

The invention provides a heat-resistant poly (aromatic ester-ether)-based biodegradable material polyester and a preparation method thereof. The method comprises the following steps: by taking an allyl monomer containing an aromatic ester structure and a vinyl ether dihydric alcohol monomer containing an ether structure as main monomers, adding an N-substituted maleimide monomer and a thiol molecular weight regulator, synthesizing a heat-resistant poly (aromatic ester-ether) dihydric alcohol precursor through emulsion polymerization, and further, preparing the heat-resistant poly (aromatic ester-ether) dihydric alcohol through a one-step method. And carrying out esterification and polycondensation on the aromatic ester, aliphatic dibasic acid, a polyfunctional cross-linking agent and a stabilizer under the action of a catalyst to prepare the heat-resistant poly (aromatic ester-ether)-based biodegradable material polyester. According to the method, the generation of a by-product tetrahydrofuran (THF) is fundamentally avoided, meanwhile, the material is endowed with excellent biodegradability and heat resistance, and an effective scheme is provided for solving the problem of white pollution caused by difficult degradation and recovery after plastic products are discarded.

The application discloses a kind of bio-based dimer amine type polyamides and the preparation method of flexible sensor thereof, the preparation of the polyamide includes: under inert gas protection, bio-based dimer amine is added with binary acid according to mole ratio in reaction container, precondensation is carried out by controlling reaction temperature and stirring rate, and pre-polymer is generated;Melt condensation is carried out under vacuum condition, and high molecular weight bio-based dimer amine type polyamide is obtained.The polyamide is physically blended with conductive filler, and flexible sensor can be prepared.The application accurately controls molecular weight by regulating degree of polymerization, and the sensing performance is optimized by combining blending process, and the obtained sensor has excellent flexibility and high sensitivity;Its preparation process does not need complex equipment, and process is safe and simple, and raw material is derived from renewable vegetable oil, meets green chemistry concept;The polyamide product is endowed with outstanding resilience due to long branched chain dimer amine structure, and has significant application potential in the field of wearable health monitoring, human-computer interaction and other flexible sensing.

The invention discloses a heat-resistant bio-based degradable polyester material and a preparation method of the heat-resistant bio-based degradable polyester material, and belongs to the field of bio-based high polymer materials. Two brand-new bio-based modified compounds are introduced, wherein one compound is diol with a bicyclic structure prepared by reacting bio-based vanillin with epichlorohydrin and carrying out hydroboration-oxidation, and the other compound is binary acid with an imidazole ring generated by hydrogenating bio-based itaconic acid and condensing the hydrogenated bio-based itaconic acid with ethylenediamine. The preparation method comprises the following steps: melting and mixing 1, 4-butanediol, adipic acid and two modified compounds, adding a catalyst and a nucleating agent, carrying out condensation polymerization under a high-temperature vacuum condition, and drying to obtain the polyester material. According to the material, the heat resistance is synergistically improved through the rigidity of a double-ring structure and the polarity of an imidazole ring, and the material is clear in bio-based source, can be completely biodegraded and is suitable for the fields of high-temperature packaging, degradable meal boxes and the like.

The invention provides a preparation method and application of a flame-retardant-plasticizing-self-repairing polyester plasticizer for polyvinyl chloride, and belongs to the technical field of polymer functional materials and polyvinyl chloride modification. According to the method, binary acid and dihydric alcohol are used as basic raw materials, a polyester main chain is constructed through esterification and polycondensation under the action of a catalyst, and a phosphorus-nitrogen flame-retardant structural unit and a reversible disulfide bond structure are cooperatively constructed in polyester molecules by introducing a binary acid monomer containing a DOPO-hydrazide structure and 4, 4 '-diaminodiphenyl disulfide. The molecular structure of the obtained polyester plasticizer simultaneously has a flexible aliphatic chain segment, an internal flame-retardant group and a dynamic reversible covalent bond, and has good plasticizing performance, flame-retardant performance and structure reconstruction capability. When the plasticizer is blended with polyvinyl chloride resin for use, the flexibility and processability of the material can be maintained, the flame-retardant safety of the material can be improved, rearrangement and self-repairing of a microstructure can be realized under a heating condition, and the plasticizer is suitable for the field of polyvinyl chloride materials with comprehensive requirements on flame retardance, flexibility and service stability.

The invention relates to bio-based polyester polyol as well as a preparation method and application thereof. The bio-based polyester polyol is obtained by polymerizing vegetable oil, bio-based dibasic acid and bio-based dihydric alcohol in a weight ratio of 1: (0.27-0.35): (0.13-0.22). Compared with common polyester polyol, when the bio-based polyester polyol provided by the invention is used for preparing a bio-based two-component polyurethane adhesive, the adhesive has better acid and alkali resistance; the sealing structure adopting the adhesive still has good sealing property after being soaked in a solution with the pH value of 1 or 13 for 28 days.

The present application relates to a kind of reversible pressure-induced color change thermoplastic polyurethane elastomer and its preparation method.The reversible pressure-induced color change thermoplastic polyurethane elastomer includes, by weight parts, dihydric alcohol of tetraphenyl ethene group 50-80, diisocyanate 10-30, catalyst 0.005-0.02 and chain extender 1-10;The dihydric alcohol containing tetraphenyl ethene group is synthesized by polymerization reaction from aliphatic diacid and dihydric alcohol raw materials.The present application uses special macromolecular dihydric alcohol containing tetraphenyl ethene group as raw material to prepare pressure-induced color change thermoplastic polyurethane elastomer, after material processing and shaping, molecule free activity is limited, when material is extruded and deformed by external force, the rotation of benzene ring in tetraphenyl ethene molecule which can freely rotate is limited, the non-radiative transition mainly by rotation is reduced, molecule luminescence is enhanced, so that the material has the performance of pressure-induced color change.

The invention relates to a reversible piezochromic thermoplastic polyurethane elastomer and a preparation method thereof. The reversible piezochromic thermoplastic polyurethane elastomer is prepared from the following raw materials in parts by weight: 50 to 80 parts of dihydric alcohol with tetraphenyl ethylene groups, 10 to 30 parts of diisocyanate, 0.005 to 0.02 part of a catalyst and 1 to 10 parts of a chain extender, the dihydric alcohol containing the tetraphenyl ethylene group is synthesized by carrying out polymerization reaction on aliphatic dibasic acid and dihydric alcohol raw materials. The piezochromic thermoplastic polyurethane elastomer is prepared by taking special macromolecular dihydric alcohol containing tetraphenyl ethylene groups as a raw material, the free movement of molecules is limited after the material is processed and molded, and the rotation of benzene rings which can rotate freely in tetraphenyl ethylene molecules is limited when the material is extruded and deformed by external force, so that the compressive strength of the material is improved. And non-radiative transition mainly based on rotation is reduced, and molecular luminescence is enhanced, so that the material has piezochromism performance.

This invention provides a highly crystalline furan-based polyester, its preparation method, and its applications. The highly crystalline furan-based polyester is prepared in the presence of a crystallization improver; the crystallization improver is at least one of cyclic monohydroxy acetal compounds. The preparation method includes reacting components, including furan dicarboxylic acid or its derivatives, and diols, in the presence of the crystallization improver to prepare the highly crystalline furan-based polyester. By introducing a crystallization improver into the reaction system for generating furan-based polyester, this invention significantly inhibits the etherification side reaction, reduces the content of etherification byproducts in the furan-based polyester product, and results in better color value and transparency, significantly improving the crystallinity of the furan-based polyester.

The invention provides a moisture absorption and sweat releasing antistatic finishing agent and a preparation method thereof. The antistatic finishing agent is prepared from the following raw materials: 80 to 100 parts of dibasic acid ester, 80 to 100 parts of dihydric alcohol, 24 to 30 parts of lactam monomer, 40 to 50 parts of polyethylene glycol, 0.5 to 1 part of catalyst, 8 to 15 parts of polyether-siloxane-ionic liquid terpolymer, 3 to 6 parts of graphene-zinc oxide-sodium bentonite composite powder, 3 to 8 parts of functional filler, 1 to 3 parts of dispersing aid, 0.1 to 0.3 part of defoaming agent, 0.2 to 0.5 part of antioxidant and 2 to 5 parts of coalescing agent. The moisture-absorbing and sweat-releasing antistatic finishing agent can endow the fabric with excellent moisture-absorbing and sweat-releasing properties, lasting antistatic property and washability, has an antibacterial effect, can improve the hand feeling and air permeability of the fabric, and is good in self stability.

The invention relates to the cross technical field of polymer synthesis and plastic recycling. More specifically, the invention relates to a method for preparing polyesteramide through one-pot alcoholysis of PA6. The method comprises the following steps: uniformly mixing a PA6 raw material, dihydric alcohol and a catalyst, and carrying out alcoholysis reaction to obtain an alcoholysis product with the molecular weight of 1t; the preparation method comprises the following steps: adding a small molecule or oligomer intermediate with the molecular weight of 5000 g / mol, then supplementing a polymerizable monomer, and carrying out melt polycondensation to obtain polyesteramide PEA; wherein the polymerizable monomer is dibasic acid required for preparing polyesteramide or anhydride or ester corresponding to the dibasic acid. According to the method, direct synthesis from waste PA6 to high-performance degradable polyesteramide (PEA) can be efficiently realized, any complicated separation and purification steps are not needed in the whole process, the catalyst can also be used in the alcoholysis reaction and the repolymerization process at the same time, secondary addition is not needed, the steps are simpler and more convenient, the production cost is greatly reduced, and the production efficiency is greatly improved.

The application belongs to the technical field of polymer material preparation and recycling, and relates to a PA6 that can be hydrolyzed and recycled multiple times, a preparation method and a closed-loop recycling method. The structural formula of the PA6 that can be hydrolyzed and recycled multiple times is as follows: wherein n and m are positive integers, -OC-R1-CO- is a binary acid segment, and -O-R2-O- is a binary alcohol segment. The preparation method is to perform an ester exchange reaction on PA6 oligomer esterification to obtain the PA6 that can be hydrolyzed and recycled multiple times. The closed-loop recycling method is to perform an ester bond hydrolysis reaction on the PA6 that can be hydrolyzed and recycled multiple times, cool and collect the precipitate to obtain recycled double-carboxyl PA6 oligomer, and then sequentially perform esterification and ester exchange reactions on the recycled double-carboxyl PA6 oligomer to obtain regenerated PA6 that can be hydrolyzed and recycled multiple times. The application constructs an efficient closed-loop hydrolysis recycling path of "PA6 double-carboxyl PA6 oligomer PA6", and the method is simple, low in cost and easy to be applied in large-scale industrial production.

The invention provides a low-temperature foaming thermoplastic polyester elastomer material as well as a preparation method and application thereof. The thermoplastic polyester elastomer material is prepared from the following raw materials: a binary acid component A, a binary acid component B, a dihydric alcohol component C, a dihydric alcohol component D, a branching agent component E and a nucleating agent component F, the dibasic acid component A is terephthalic acid, and the dibasic acid component B is isophthalic acid or phthalic acid or 2, 5 furandicarboxylic acid or 2, 6-naphthalic acid; the dihydric alcohol component C is 1, 4-butanediol; and the dihydric alcohol component D is polytetrahydrofuran. The low-temperature foaming thermoplastic polyester elastomer material is prepared by adopting an in-situ multi-element modification mode, the crystallization temperature peak of the low-temperature foaming thermoplastic polyester elastomer material is lower than 80 DEG C, the supercritical foaming temperature is lower than 130 DEG C, the foaming ratio is more than 10 times, the sample morphology is uniform and consistent, and no obvious cell fracture phenomenon exists.