56 results about "Polyester matrix" patented technology

The invention relates to the technical field of high polymer material preparation, and discloses a bamboo fiber graft modified full-biodegradable composite membrane material preparation process which comprises the following steps: firstly, performing hot mixing and cooling on dried bamboo fiber powder, anhydrous citric acid, choline chloride, activated zinc oxide and pentaerythritol to prepare a bamboo fiber modified premix; then mixing the biodegradable polyester resin with the premix; adding the mixture into an extruder, injecting epoxidized soybean oil into a barrel through a liquid metering device, and performing melt extrusion granulation under a vacuum exhaust condition; and finally carrying out blow molding to form the film. Through in-situ reaction extrusion of multi-component synergism, surface grafting of bamboo fibers, chain extension of a polyester matrix and interface chemical bonding of the bamboo fibers and the polyester matrix are achieved, interface compatibility is effectively improved, degradation of the material in the processing process is inhibited, and the mechanical property and thermal stability of the composite film material are remarkably improved; the process is efficient and environment-friendly, and the cost is controllable.

The invention discloses a carbon fiber polyester composite felt and a preparation method thereof, and relates to the technical field of high polymer materials, and the preparation method comprises the following steps: (1) carbon fiber directional activation; (2) in-situ grafting of sheath-core monofilaments; (3) dual-network synchronous lapping; and (4) node in-situ thermal consolidation. According to the preparation method disclosed by the invention, a carbon fiber polyester composite felt preparation system without an additional binder is constructed by sequentially implementing four steps of processes of carbon fiber directional activation, skin-core monofilament in-situ grafting, dual-network synchronous lapping and node in-situ thermal consolidation, and molecular-level synergistic combination of carbon fibers and polyester components is realized. The interface bonding strength and structural integrity of the composite felt can be remarkably improved, and meanwhile, the mechanical bearing stability of the composite felt is improved, so that the problems that in the prior art, carbon fibers and a polyester matrix are poor in interface compatibility, layering and falling are prone to occurring, and the service life is short can be solved. And the problems that the mechanical property of the composite felt is reduced, the preparation process is complicated and the environmental protection property is insufficient due to the need of adding an external binder are solved.

This invention provides a glass-microsphere hybrid heat-insulating polyester chip, its preparation method, and its application. The glass-microsphere hybrid heat-insulating polyester chip is obtained by melt extrusion granulation after blending polyester chips with hollow glass microspheres. The surface coating layer of the hollow glass microspheres comprises the following raw materials in weight percentages: 30-50% fluorinated resin prepolymer, 2-8% crosslinking agent, 0.5-2% initiator, and the balance solvent. This invention introduces fluorinated resin into the coating layer on the surface of the hollow glass microspheres. Due to the excellent compatibility between the fluorosilicone or fluorocarbon segments in the fluorinated resin and the polyester matrix, and the introduction of the crosslinking agent to form a three-dimensional network structure, the interfacial bonding force between the coating layer and the polyester matrix is ​​enhanced, preventing microsphere detachment during spinning, and imparting hydrophobicity to the hollow glass microspheres, resulting in self-cleaning properties after spinning.

The present application relates to a kind of antistatic humidity regulating polyester composite fabric and its preparation method.The fabric includes polyester matrix layer, humidity regulating layer, conductive mesh layer and discrete adhesive layer from inside to outside.The humidity regulating layer is polyvinyl alcohol and polyurethane interpenetrating network porous membrane, the thickness is 15-40 μm, and its calcium chloride mass fraction and pore size increase along the film thickness direction, with good humidity regulating performance;The conductive mesh layer is woven by core-sheath type conductive filament, which enhances the antistatic performance of the fabric;Discrete adhesive layer is point-like heat-light curing acrylate adhesive, which ensures stable bonding between layers and maintains good moisture permeability.The preparation method includes freeze-thaw cycle preparation of humidity regulating layer, corona treatment of conductive mesh layer and light curing process of discrete adhesive layer.The composite fabric has excellent humidity regulating effect, antistatic performance and good wearing comfort.

The application discloses a preparation method of an environment-friendly outdoor non-gloss powder coating, relates to the technical field of powder coating, and comprises the steps of HAA microcapsule preparation, raw material premixing, melt extrusion, tabletting, crushing and micro-powder grading. First, a HAA microcapsule is prepared from a hydroxyalkyl amide curing agent, epoxidized soybean oil acrylate, silane coupling agent KH570 and the like; then, after premixing the HAA microcapsule with a polyester matrix, a matt resin, functional fillers and functional additives, the mixture is subjected to melt extrusion, crushing and grading to obtain a finished product. The coating prepared by the method has low 60-degree gloss, high corrosion resistance, excellent adhesion and good weather resistance, and is suitable for outdoor scenes.

The invention relates to the technical field of layered composite fabrics, in particular to an antibacterial wear-resistant multi-layer composite fabric and a preparation process thereof. The invention relates to a preparation process of an antibacterial wear-resistant multilayer composite fabric. The preparation process comprises the following steps: preparing surface modified nano silicon dioxide; preparing an antistatic additive; preparing an outer-layer fabric; preparing an inner layer fabric; and preparing the multi-layer composite fabric. The preparation method comprises the following steps: aminating the surface of nano silicon dioxide by using a silane coupling agent, and grafting 4, 4 '-dihydroxy diphenyl sulfone and hexachlorocyclotriphosphazene to the surface of the aminated nano silicon dioxide by using triethylamine as an acid-binding agent, so that the nano silicon dioxide can be promoted to be uniformly dispersed in a polyester matrix; according to the present invention, the modified nano-silica is added into the polyester fiber, such that the compatibility of the nano-silica and the polyester matrix is improved, the combination is firm, the nano-silica does not easily fall off during repeated friction so as to effectively improve the wear resistance of the outer layer fabric, and the modified nano-silica is dispersed in the polyester fiber so as to effectively improve the flame retardant property of the outer layer fabric.

The present application belongs to the technical field of degradable polymer composite materials, and particularly relates to a heat-resistant degradable composite material and a preparation method thereof. In the method, epoxy silane grafted zirconium titanium phytate layered microsheets, lactic acid modified silicon boron calcium phosphate whiskers and light calcium carbonate are premixed with ethylene bis-stearamide and monoglyceride, and then mixed with polybutylene succinate, polylactic acid, polybutylene terephthalate adipate, an epoxy chain extender and an antioxidant, and then subjected to double-screw melt blending, cooling and granulation, drying, molding and heat treatment to obtain the heat-resistant degradable composite material. Through the synergistic effect of the epoxy silane grafted zirconium titanium phytate layered microsheets, the lactic acid modified silicon boron calcium phosphate whiskers and the degradable polyester matrix, the heat resistance, dimensional stability, mechanical strength and processing stability of the material are improved.

The invention belongs to the field of polyester materials, and particularly discloses a polyester material as well as a preparation method and application thereof. The polyester material disclosed by the invention is prepared from the following components in parts by weight: 49 to 81 parts of polyester, 14 to 36 parts of starch, 0.9 to 5.5 parts of compatilizer, 4.5 to 16 parts of main plasticizer and 0.04 to 0.55 part of auxiliary plasticizer, the compatilizer comprises a GMA copolymer compatilizer, and the auxiliary plasticizer comprises a water-soluble organic acid. According to the polyester material disclosed by the invention, the water-soluble organic acid auxiliary plasticizer in the polyester material promotes the main auxiliary agent to plasticize the starch, and meanwhile, the water-soluble organic acid auxiliary plasticizer cooperates with the GMA copolymer compatilizer to modify the interfacial compatibility of the starch and polyester matrix resin, so that the mechanical property and the appearance plasticizing degree of the polyester material can be improved; therefore, the method is more suitable for being applied to preparation of degradable film materials.

The application belongs to the field of polyester base cloth materials, and provides a high tensile strength polyester base cloth and a preparation method thereof, and constructs a modified polyester which can maintain excellent mechanical properties under high stress conditions. First, polyethylene glycol monomethyl ether is used to react with maleic anhydride to introduce flexible polyether chain segments and unsaturated double bond structures, and then free radical grafting of acrylic acid and ring-opening reaction of epichlorohydrin are used to introduce functional groups, so that the flexible chain segments have reactivity with polyester chains and other components, thereby enhancing the intermolecular compatibility and binding force in subsequent polymerization. In the preparation process of the polyester matrix, modified liquid crystal polyester and modified poly-p-phenylene benzobisoxazole are added to improve the tensile strength of the material through the rigid molecular chain structure thereof, and meanwhile, the flexible chain segments of the modified polyethylene glycol monomethyl ether and polytetrahydrofuran ether glycol effectively disperse internal stress, further improving the overall mechanical properties and structural stability of the material.

The invention relates to the technical field of polymer composition modification, and discloses a high-compatibility PBAT bamboo powder composite master batch preparation method, which comprises: mixing sulfonated PBAT, a PBAT-g-GMA graft, activated bamboo powder and an auxiliary agent to obtain a mixed dry material; the viscosity difference between the graft and the matrix is utilized in the melting section of double-screw extrusion, so that the graft melt permeates and fills tracheid micropores in the bamboo powder; in the reaction mixing section, epoxy groups in the graft are chemically bonded with sulfonic acid groups and hydroxyl groups to form an interface anchoring structure, in-situ chain extension and esterification reaction of the components in micropores are utilized, micro-nano molecular anchor points of a cross-phase boundary are constructed, the compatibility of biomass fibers and a polyester matrix under the high filling amount is effectively improved, and the compatibility of the biomass fibers and the polyester matrix is improved. The self-agglomeration trend of the filler is inhibited, and the mechanical property and service stability of the composite material are improved.

The invention relates to the technical field of polyester preparation, in particular to an intelligent gradient preparation method based on functional polyester fibers, which comprises the following steps: taking a renewable non-bio-based nitrogen-containing raw material as a substrate, introducing into a chemical catalytic reaction kettle protected by inert gas to carry out continuous catalytic cracking reaction, purifying a cracking solution by an ultrafiltration membrane, and drying to obtain the functional polyester fibers. Carrying out an amination reaction with an amination reagent under a microwave-assisted condition to prepare a non-bio-based amine modifier; high-quality preparation of the functional polyester fiber is realized through preparation of a non-bio-based nitrogen-containing modifier, polymerization modification of a polyester matrix, intelligent gradient spinning, nitrogen-containing functionalization treatment and collaborative innovation of a post-treatment process. The method has the beneficial effects that the nitrogen-containing modifier is prepared from renewable non-bio-based nitrogen-containing raw materials, so that the raw materials are green and sustainable; through esterification-polycondensation two-stage melt copolymerization of the double-screw reaction kettle, uniform dispersion of functional components in a matrix is ensured.

This invention belongs to the field of functional textile materials and provides a cooling and antibacterial polyester fabric and its preparation method. The invention employs a melt-blended spinning design of a thermally conductive antibacterial core-shell masterbatch and a polyester matrix. The masterbatch uses a zinc oxide submicron rod-shaped inorganic core as its core, coated with a silane coupling layer and a quaternized copolyester shell. During fiber drafting, the one-dimensional zinc oxide rods are aligned axially, significantly improving the longitudinal thermal conductivity of the fiber and enhancing the instantaneous cooling sensation upon contact. Simultaneously, the quaternized copolyester shell exhibits good compatibility with the polyester matrix, constructing a dense, wash-resistant, and antibacterial network. This achieves synergistic optimization of high-strength, fine-denier spinnability with high-filler thermal conductivity, durable antibacterial properties after 50 machine washes with a soft and comfortable feel, and high functionalization efficiency with low migration safety. It resolves the technical contradictions in existing polyester fabrics regarding thermal conductivity and cooling sensation versus antibacterial durability, functionality versus safety, and processability versus comfort, and has broad application value in areas such as intimate apparel and bedding.

The application discloses a kind of drip-proof flame-retardant films and its manufacturing method, belong to flame-retardant material technical field.Mainly include:Including flame-retardant polyester matrix, the flame-retardant polyester matrix is made by conventional polyester chip and phosphorus flame-retardant masterbatch HY-F4830 according to mass ratio 85:15 co-modification;In the single side or both sides of the flame-retardant polyester matrix Embeddedly combined with the non-combustible fiber preprocessed by coupling agent, the non-combustible fiber length is greater than or equal to 3mm, diameter is 0.1-10µm, and the addition amount is 1-100cm / cm 2 ;The drip-proof flame-retardant film can be processed and formed by unidirectional stretching or biaxial stretching;Through the synergistic effect of the casting preparation process of on-line embedding non-combustible fiber in melt state and the surface pretreatment of coupling agent, the industry pain points of easy clogging filter and invalidation of drip-proof effect in traditional blending method are solved, and the production stability and functional reliability of the drip-proof flame-retardant film are significantly improved.

The invention discloses a conductive polyester composite filament and a preparation method thereof, and particularly relates to the technical field of fiber material preparation, polyester is used as a matrix, a nanoscale composite conductive agent is added into the matrix, the composite conductive agent is composed of conductive carbon black and carbon nanotubes, and the conductive carbon black and the carbon nanotubes are arranged in the matrix. The addition amount of the composite conductive agent is 3%-10% of the total mass of the composite filament, and the composite conductive agent is uniformly dispersed in the terylene matrix in a nanometer scale to form a continuous conductive path. According to the invention, nanoscale conductive carbon black and carbon nanotubes are compounded to construct a point-line combined stable three-dimensional conductive network, excellent conductivity is realized under a relatively low additive amount, damage of high filling to mechanical properties of fibers is effectively avoided, and a core process of pre-dispersion combined with double-screw high-shear blending or in-situ polymerization is adopted, so that the preparation method has the advantages of simple process, low cost and high performance. The problem of uniform dispersion of the nano conductive agent is solved, and a formed conductive path is firm in structure and durable and stable in performance.

The invention relates to the technical field of polyester modified materials, in particular to a flame-retardant reinforced polyester modified material and a preparation method thereof, and the flame-retardant reinforced polyester modified material is prepared from the following raw materials in parts by weight: 50-65 parts of polyester matrix; 20-30 parts of a reinforcing material; 8-15 parts of a flame-retardant modified material; 3-6 parts of a functional additive; 1-2.5 parts of a performance regulator; and 2-5 parts of an auxiliary material. According to the flame-retardant reinforced polyester modified material, through multi-component synergistic modification and step-by-step processing technology innovation, precise balance of flame retardance, mechanical properties and processability is achieved, an efficient flame-retardant system is formed through compounding of the inorganic flame retardant and the charring agent, meanwhile, toxic gas release is avoided, and the flame-retardant reinforced polyester modified material is environmentally friendly. After surface modification, the reinforcing material is tightly combined with a polyester matrix interface, the tensile strength is improved by 40% or above, the impact strength is improved, the conflict of flame retardance and reinforcing performance of a traditional material is solved, the step-by-step mixing and homogenizing process ensures that all the components are uniformly dispersed, and the processing fluidity is remarkably improved.

The invention relates to the technical field of high polymer materials, and discloses a polyester release master batch as well as a preparation method and application thereof. According to the release master batch, polyester resin is used as a matrix, specific modified organic silicon resin is introduced, and the organic silicon resin is prepared from polydimethylsiloxane containing silicon-hydrogen bonds, multiple hydrogen bond unit monomers containing unsaturated double bonds and fluorine-containing chain segment monomers through a hydrogen-silicon addition reaction. Multiple hydrogen bond groups and fluorine-containing alkyl chain segments are introduced to the same molecular chain at the same time, so that the resin is endowed with temperature responsiveness, excellent dispersity in a polyester matrix and ultralow surface energy after film formation. The polyester release master batch is prepared by adopting a melt blending extrusion process, and then the polyester release master batch and the polyester resin are blended and stretched to prepare the release film, so that the release film has stable and adjustable release force and excellent fingerprint resistance and pollution resistance, keeps good transparency and dimensional stability, and is suitable for the fields of electronic packaging, optical protection films, die cutting materials and the like.

The invention relates to the technical field of polyester fibers, in particular to a high-strength light-weight polyester fiber material for curtains and a preparation method of the high-strength light-weight polyester fiber material. The high-strength light-weight polyester fiber material comprises the following raw materials in parts by weight: 80-90 parts of a polyester matrix, 5-10 parts of a reinforcing agent, 0.1-0.5 part of an additive, 0.3-0.7 part of a UV-531 ultraviolet light absorber, 0.8-1.5 parts of an antioxidant, 0.8-1.2 parts of a composite lubricant and 0.2-0.6 part of a nucleating agent. According to the invention, a benzene ring structure of phenyl phosphoric acid and a benzene ring in a PET chain segment have similar chemical structures, relatively strong intermolecular interaction can be generated, a phosphate group of phenyl phosphoric acid and silicon hydroxyl are subjected to dehydration condensation to form a P-O-Si covalent bond, and the whole reinforcing system is anchored on a PET molecular chain through a chemical bond; the multi-chemical bonding network extending from the surface of the nanotube to the PET matrix ensures efficient stress transfer, and fundamentally avoids interface debonding, so that the fiber has high-strength mechanical properties.

The invention discloses an ultrathin heat-resistant polyester film and a preparation method thereof, raw materials comprise a polyester matrix, an antioxidant, a lubricant and the like, the polyester matrix is formed by compounding PET, PEN, polyester liquid crystals and hydroxyl-terminated hyperbranched polyester, and a nanofiller is an aluminum oxide, zirconium oxide and boron nitride compounded system and is matched with calix [4] pyrrole, polyhedral oligomeric silsesquioxane and other components. The preparation method comprises the steps of mixing, twin-screw extrusion and filtration, die head extrusion and cooling, two-way stretching, corona treatment and rolling, and extrusion, stretching and shaping process parameters are controlled. The thickness of the thin film is 5-8 microns, the thin film has excellent tensile strength, low thermal shrinkage rate and high-low temperature cycle resistance, the synergistic effect of the components is remarkable, and the thin film is suitable for high-end ultrathin heat-resistant scenes.

The present application relates to the technical field of optical diffusion plate preparation, and particularly relates to a composite optical diffusion plate and a preparation method thereof. The optical diffusion plate comprises, from top to bottom, an upper layer A, a functional layer B, a core layer C, a functional layer D and a lower layer E. Through multi-layer composite design, the low warping performance and light diffusion performance of the plate are significantly improved. Different types and proportions of polyester matrix, functional filler, chain extender, antioxidant, ultraviolet absorber and the like are used in each layer to achieve high light transmittance, high light diffusion and excellent dimensional stability. The optical diffusion plate prepared by the present application adopts a multi-step premixing, double-screw co-extrusion and segmented annealing cooling process, which can effectively release residual stress and further inhibit warping deformation. The scheme has a reasonable structure and scientific formula, and the product has excellent mechanical properties, weather resistance and processing adaptability, and is suitable for the manufacture of optical diffusion plates in high-end lighting, display and other fields.

The invention relates to the technical field of high polymer materials, and particularly discloses a degradable composite mulching film material as well as a preparation method and application thereof. Comprising the following raw material components in parts by mass: degradable polyester matrix resin, composite plant fibers, thermoplastic starch, a composite polysaccharide material, an inorganic mineral filler, a cross-linking agent and a plasticizer, wherein the degradable polyester matrix resin is prepared from poly (adipic acid) / butylene terephthalate copolyester, polylactic acid and polypropylene carbonate; the composite plant fibers comprise corn straw fibers, bagasse fibers and microcrystalline cellulose; the compound polysaccharide material comprises chitosan, sodium alginate and carboxymethyl cellulose sodium. The composite mulching film material which is excellent in mechanical property, good in interfacial compatibility and capable of balancing the trial period and the degradation period is successfully prepared by utilizing the synergistic effect of all the raw material components, and the defects that an existing mulching film material is poor in mechanical property and interfacial compatibility, and the use period and the degradation period are difficult to consider at the same time are effectively overcome.

The invention discloses a bacteriostatic and warm-keeping fabric fiber and a preparation method thereof, belongs to the technical field of fabric fiber processing, and is used for solving the technical problem that the mechanical strength, bacteriostatic performance and warm-keeping performance of fabric fibers in the prior art need to be further improved. Terephthalic acid, ethylene glycol, PEG-400, 3, 5-bis (2-hydroxyethoxycarbonyl) sodium benzenesulfonate and a catalyst are mixed and stirred, gel-based particles containing quaternary ammonium salt, silicon-titanium coupled and activated epoxy graphene and azodicarbonamide are introduced into a composite polyester matrix, a large number of closed and semi-closed air cavities are constructed in hollow fibers, and the hollow fibers are uniformly dispersed in the hollow fibers. The mechanical property and the antibacterial property of the fabric fiber material are effectively improved, and the heat retention property and the far infrared emission property of the fabric fiber are also improved, so that the fabric has excellent heat storage feedback capability and wearing comfort.

The invention provides a flame-retardant high-color-fastness jacquard full-paving blanket production line and a production process, the flame-retardant high-color-fastness jacquard full-paving blanket production line comprises a spinning device, a jacquard device and a compounding device, the spinning device comprises a crystallization drying mechanism, a spiral extrusion mechanism, a spinning forming mechanism and a deformation cooling mechanism; the spiral extrusion mechanism comprises a feeding cavity, a first compression cavity, a second compression cavity, a static mixing cavity, a first metering cavity, a dynamic mixing cavity and a second metering cavity which are sequentially arranged in the material flowing direction. The spiral extrusion mechanism is of a multi-cavity structure, materials are mixed at different temperatures through subareas, and therefore the problem that high-proportion and multi-component functional additives in a polyester matrix are difficult to evenly disperse and stably spin is solved.

The invention relates to the technical field of traction ropes, in particular to a production method of a strong yarn traction rope, which comprises the following steps: S1, raw material preparation, S2, filler preparation, S3, raw material pretreatment, S4, blending treatment, S5, twisting treatment, S6, stranding treatment, and S7, curing and weaving treatment. According to the invention, the filler takes polyhedral oligomeric silsesquioxane as a rigid skeleton, the cage structure of the polyhedral oligomeric silsesquioxane provides dimensional stability, the epoxy-terminated hyperbranched polyester is firmly combined with a polyester matrix through active functional groups of the epoxy-terminated hyperbranched polyester, and the carbon nanohorns and the boron nitride nanosheets are used as nanoscale reinforcements, so that the interface contact area is effectively increased; under the synergistic effect of bridging of p-hydroxybenzoic acid and addition materials, the components are firmly combined with a polyethylene glycol terephthalate matrix in a multi-layer mode, stress can be effectively transmitted and dispersed through strong interface combination, and early material damage caused by interface weakness and stress concentration is eliminated.

The invention relates to the technical field of high polymer materials, and discloses a low-melting-point polyglycolic acid plant cellulose composite material and a preparation method thereof. The composite material is prepared from the following raw materials: polyglycolic acid, poly (adipic acid) / butylene terephthalate, polylactic acid, polypropylene carbonate, modified plant cellulose ultrafine powder, an epoxy chain extender and a peroxide cross-linking agent. The preparation method comprises the following steps: carrying out supercritical carbon dioxide pretreatment on a primary mixture of the raw materials, and then carrying out low-temperature reactive melt blending granulation on the pretreated materials. Through the synergistic effect of multi-polyester alloying and supercritical fluid pretreatment, the processing temperature of the composite material is reduced; meanwhile, the plant cellulose modified by multiple steps of plasma activation, esterification and silane grafting is adopted, so that the interface bonding between the plant cellulose and a polyester matrix is improved; the method solves the problems of difficult processing of polyglycolic acid and poor compatibility with plant fibers, and the obtained composite material has high strength and wide processing window.

This invention discloses a method for preparing melt-modified bamboo powder grafted with lactide and a bio-based biodegradable bamboo-plastic composite material, belonging to the field of biomass filler modification technology. This invention uses bamboo powder as a biomass filler and lactide as a grafting monomer for in-situ graft modification. Lactide is ring-opened and grafted onto the surface of the bamboo powder to construct a compatible interface layer. The grafted modified bamboo powder is melt-blended with biodegradable polyester matrices such as PLA and PBAT, and modifiers such as ECGE, ESO-ECD, and Poly(NC514) to prepare a bio-based biodegradable bamboo-plastic composite material. This invention overcomes the limitations of traditional liquid-phase modification systems, significantly improving the interfacial bonding strength and mechanical properties between the modified bamboo powder and the polyester matrix. Ultimately, the prepared composite material possesses advantages such as complete biodegradability, low cost, and excellent mechanical properties, making it highly valuable for application.

The invention relates to the technical field of degradable plastic compositions, and discloses a modified polyester degradable plastic composition for hot stamping forming and a preparation method thereof, the modified polyester degradable plastic composition comprises hydroxyl-terminated hyperbranched polyester, organic modified montmorillonite, an antioxidant and a polyester matrix composed of polylactic acid and poly (butylene succinate), the interface adsorption effect of terminal hydroxyl of terminal hydroxyl hyperbranched polyester and edge active silicon hydroxyl of organic modified montmorillonite is utilized, and a thermal response dispersion phase structure is constructed in a polyester matrix; when hot stamping is heated, hydroxyl-terminated hyperbranched polyester is separated from a montmorillonite sheet layer and migrates and enriches towards the surface, a molecular slippage layer is formed on a hot stamping interface, the physical contradiction between hot-state adhesion and cold-state fracture is solved in a coordinated mode, a controlled release mechanism of interface components is utilized, precise cutting of the hot stamping interface is achieved on the premise that the impact toughness of the material is maintained, and the hot stamping performance is improved. Burrs on the edge of the pattern are inhibited, and the resolution of the hot stamping pattern is improved.

The application discloses a modified polyester fiber, a preparation method thereof and a polyester modifier, wherein during preparation, a plant-based extract with at least antibacterial efficacy is dispersed in a non-polar organic solvent to form a mixed solution, and then is applied to sodium-based montmorillonite and dried to obtain modified antibacterial powder; bamboo charcoal and graphene are mixed to form a mixed material; the modified antibacterial powder, the mixed material and polyester powder are mixed and melt-extruded to form the polyester modifier; and the polyester modifier and a polyester matrix raw material are subjected to a spinning process to form the modified polyester fiber; the modified polyester fiber adopts plant-based antibacterial and light-absorbing and heat-generating functions, improves the common problem that plant-based materials are not resistant to high temperature, breaks through the functional limitation of traditional polyester fibers, provides a green upgrading system solution for the textile industry, and can be used for recycling of regenerated polyester, and has remarkable economic benefits and environmental protection values.

The invention discloses a bottle-brush-shaped polymer for toughening rigid biodegradable polyester as well as a toughening composition, a preparation method and application of the bottle-brush-shaped polymer. The bottle brush polymer has a polylipoic acid main chain and a flexible polyester side chain grafted on the polylipoic acid main chain, a rigid polyester side chain can be optionally grafted, and when the rigid polyester side chain is grafted, the flexible side chain must exist at the same time. The bottle-brush-shaped polymer can be uniformly dispersed in a polyester matrix through the volume exclusion effect of dense side chains and a brush-shaped distribution structure, so that energy dissipation is realized, and the elongation at break and the impact toughness are remarkably improved; when a rigid polyester chain segment which is the same as a matrix is introduced into a side chain, the interfacial compatibility can be further improved, and the balance of rigidity and toughness is realized. The bottle-brush-shaped polymer is prepared through ring opening polymerization of bio-based micromolecular lipoic acid, the preparation steps are simple, and the bottle-brush-shaped polymer is biodegradable and suitable for the fields of disposable products, packaging materials, medical degradable instruments and the like.

The invention relates to the technical field of composite modification of polymer waste, and discloses a preparation method of a compatibilization modified geotextile blanket based on waste polyester and rubber, which comprises the following steps: using a reactive interface shuttle plasticizer as a temporary plasticizer in a melt blending low-temperature stage to construct a processing window for waste polyester; in the high-temperature stage, the plasticizer reacts with the waste rubber to achieve interfacial compatibilization and self-locking to eliminate the plasticizing effect of the waste rubber, and the reaction event is further used as a chemical signal to trigger an interfacial co-reaction in-situ cross-linking agent to cross-link at an interface and construct a stress dissipation network. The processing temperature window and the final use performance of the material are separated, so that the problem of blending of the two materials, namely the waste polyester and the waste rubber which have conflicting thermal performance, is solved, and the final product has excellent interface bonding strength and recovers the due thermal stability and toughness of a polyester matrix at the same time.