92 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 belongs to the technical field of flame retardance, and particularly discloses a production process of a polyester efficient flame retardant and application of the polyester efficient flame retardant to a thermal insulation material. Comprising the following steps: (1) dispersing montmorillonite in deionized water, adding PEG-400, octadecyl trimethyl ammonium chloride and aluminum metaphosphate, stirring at the temperature of 50-60 DEG C, and drying to obtain pretreated montmorillonite; (2) uniformly mixing composite glass fibers, magnesium hydroxide and silicon dioxide, dispersing the mixture into an ethanol solution, adding the pretreated montmorillonite in the step (1), and performing ultrasonic treatment, filtration and drying to obtain a mixture; and (3) spraying an epoxy resin solution on the surface of the mixture obtained in the step (2), and grinding to obtain the high-efficiency polyester flame retardant. According to the flame-retardant polyester material disclosed by the invention, various components are synergistically matched, a compact carbon layer is formed during combustion, heat is prevented from being transferred to a polyester matrix, a flame-retardant effect is achieved, and the inorganic components, the epoxy resin coating and the like can change the mechanical properties of the polyester material.

The invention discloses a preparation method of a long-acting antistatic polymer master batch for skin-core spinning polyester, and relates to the technical field of high polymer material preparation. The hard segment comprises the following components: 100 parts of aromatic polyester, the aromatic polyester is generated through a reaction of 100 parts of an aromatic monomer and 80-120 parts of aliphatic dihydric alcohol, the aromatic monomer is dimethyl terephthalate, and the aliphatic dihydric alcohol is 1, 4-butanediol. Through cooperation of the hard segment structure, the soft segment structure, the polyaniline, the protonic acid, the ionic liquid, the fluorine-containing polymer and the sulfonate, the problems that the antistatic performance of the polyester master batch depends on environment humidity, the subsequent process is easy to lose efficacy, and the compatibility with a polyester matrix is poor are solved; the master batch can maintain a stable antistatic effect in a low-temperature and low-humidity environment, the performance of the master batch is not attenuated after subsequent procedures such as elasticizing and printing and dyeing, meanwhile, short filaments and broken filaments are avoided in the spinning process, and the continuity of polyester fiber production and the quality of finished products are improved.

The invention relates to the technical field of chemical fibers, in particular to a low-melting-point polyester FDY (fully drawn yarn) preparation process which comprises the following steps: preparing raw materials, selecting polyester chips and a low-molecular-weight polyester copolymer, mixing the polyester chips and the low-molecular-weight polyester copolymer according to a ratio, melting and blending the polyester chips and the low-molecular-weight polyester copolymer with the additive amount of 5-8wt% and the intrinsic viscosity of 0.65-0.70 dL / g, and performing extrusion molding to obtain the low-melting-point polyester FDY. And putting the mixed raw materials into a screw extruder, and carrying out melt blending and spinning treatment at 250-260 DEG C. According to the low-melting-point polyester FDY and the preparation method thereof disclosed by the invention, a component regulation end is arranged, so that a synergistic effect mechanism of a polyester matrix and a low-melting-point copolymer is accurately matched in a preparation process of the low-melting-point polyester FDY, and the uniformity of melt components is ensured; meanwhile, the copolymerization structure design directivity acts on molecular chain regularity regulation and control, thermal stability fluctuation in the spinning process is inhibited in real time, it is guaranteed that the continuous forming capacity of fibers is maintained under the high-speed spinning condition, and the stability of a production line is improved.

According to the device and the method for determining the content of the foreign substances in the polyester material, provided by the invention, alcoholysis reaction and filtering separation functions are integrated in the same device, so that the integration of a test process is realized. The device adopts a structure capable of being inversely arranged, and can be used as a reaction container when being inversely arranged, so that full alcoholysis of a polyester matrix is realized under high-temperature and high-pressure conditions; and the filtering efficiency can be improved through the internal and external pressure difference. The loss and pollution of foreign substances caused by sample transfer in a traditional method are avoided, and the test accuracy is improved from the source. In the aspect of the method, a hot ethanol circulating washing mechanism is introduced, so that residual depolymerization products are effectively dissolved and removed at a proper temperature, and pure retention of foreign substances is ensured. The whole determination process is completed in the same device, the operation steps are simplified, the analysis time is shortened, and the device has the comprehensive advantages of high test precision, wide applicability and the like.

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 invention relates to a composite waterproof high-adaptability asphalt-based waterproof coiled material and a preparation method, the coiled material is composed of a self-adhesive glue material and a structural film / base, the self-adhesive glue material is a modified asphalt glue material, and the self-adhesive glue material is composed of 100 parts of national standard asphalt, 10-40 parts of composite modified rubber, 5-15 parts of naphthenic oil and 5-10 parts of tackifying resin. 30 to 45 parts of talcum powder, 0.5 to 1.5 parts of an antioxidant and 0.5 to 1.5 parts of a heat stabilizer. The composite modified rubber is prepared from the following components in parts by weight: 20-25 parts of styrene butadiene rubber, 8-20 parts of SBS rubber, 20-40 parts of naphthenic oil, 5-10 parts of a liquid tackifier, 0.5-1.2 parts of a separant and 5-10 parts of filler. The asphalt-based waterproof coiled material is formed by compounding the self-adhesive material, a macromolecular structure film and a polyester matrix, the waterproof coiled material can achieve a good composite bonding effect with a macromolecular coiled material, and it can be guaranteed that the two materials are well combined when used in a composite mode.

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 application relates to the technical field of sponge production, and discloses a production process of high-density elastic environment-friendly sponge. The application realizes gradient foaming under laminar flow control by designing pH-sensitive three-layer core-shell laccase microcapsules with a particle size of 3-4 microns and an enzyme activity of 180-220 U / g, combining a bio-based polyester matrix with a water and liquid CO2 composite foaming system; the process core comprises the following steps: enzyme triggering solidification, microcapsule rupture triggered by pressure relief at 55-65 DEG C, crosslinking completed by three-stage gradient heating at 75-85 DEG C; a double-gradient structure with a surface layer bubble hole density of 150-190 cells / cm3 and a core layer bubble hole density of 75-95 cells / cm3 is formed; finally, the density is 90-110 kg / m3, the compression permanent deformation is less than or equal to 5%, VOCs is less than or equal to 0.02 mu g / m3, and the biodegradation rate is greater than 90%; the process solves the problems of poor durability and insufficient environmental protection of traditional sponges.

The application discloses a kind of high-dispersed zinc oxide nanocomposite polyester chips and preparation method thereof.The application is aimed at improving the dispersing ability and compatibility of ZnO nanoparticles in polyester matrix by suitable and effective surface modification, achieving good dispersion of antibacterial components in polyester matrix during in-situ coating process, and maintaining good spinning and antibacterial performance.ZnO nanoparticles after surface modification are dispersed again in D 90 The modified polyester chips have a size of 100-500 nm and an intrinsic viscosity of about 0.6-1.5 dL / g.The ZnO nanocomposite polyester chips can be used for the preparation of polyester fibers, which have improved antibacterial performance while maintaining good mechanical properties and color phase, ultimately improving product quality and reducing cost.In addition, the prepared polyester fibers have excellent antibacterial effect on escherichia coli and staphylococcus aureus.

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 discloses a preparation method of a water-based polyester insulating coating for an aluminum shell battery cell of a new energy automobile, a pre-polymerization-polymerization two-step method is adopted to synthesize a water-based polyester matrix, and the addition weight ratio of sodium 5-sulfoisophthalic acid to neopentyl glycol is controlled, so that the reaction conditions can be better controlled, and the stability of the water-based polyester insulating coating is improved. The dispersity, the stability, the water resistance, the heat resistance and other mechanical properties of the coating are improved compared with those of a paint coating obtained through one-step synthesis.

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.

The invention discloses an outdoor anti-aging wear-resistant fabric and a preparation method thereof.The preparation method comprises the following steps that firstly, polyester and modified nanoparticles are mixed, dried and then granulated, and high-concentration enhanced master batches are obtained; step 2, uniformly mixing polyester, high-concentration reinforced master batch and a compound additive, drying, carrying out melt spinning, bundling, oiling, stretching at a high speed, winding and forming to obtain polyester multifilaments; and step 3, weaving the polyester multifilaments as warp yarns and weft yarns into a gray fabric, and then carrying out a dyeing and finishing process on the gray fabric to obtain the outdoor anti-aging and wear-resistant fabric. According to the outdoor anti-aging and wear-resistant fabric provided by the invention, the modified nanoparticles prepared by a specific method are introduced into a polyester matrix, and an optimized spinning and weaving process is combined, so that the technical bottlenecks that the mechanical property and the weather resistance of a traditional fabric are difficult to consider at the same time, functional aids are easy to migrate and lose efficacy, and nano materials are difficult to disperse are effectively solved.

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 invention discloses a twelve-hole far infrared heating fiber and a preparation method thereof, and relates to the technical field of textile fabrics. The preparation method comprises the following steps: firstly, carrying out plasma ball milling on nano tourmaline and titanium powder together, then grafting 2, 5-dihydroxy terephthalic acid to the surfaces of particles to prepare modified nano tourmaline, and preparing the modified polyester master batch from the modified nano tourmaline, so that the modification of the nano tourmaline enhances the compatibility of the nano tourmaline and a polyester matrix, and far infrared rays can be released through molecular vibration; meanwhile, the modified nano tourmaline can also be used as a heterogeneous nucleating agent, so that the crystallization rate and crystallinity of the polyester are improved, and the mechanical property of the fiber is improved; the twelve-hole far-infrared heating fiber is obtained by coating the multi-benzene-ring film on the surface of the fiber after high-energy electron beam irradiation, and the multi-benzene-ring structure of the surface film layer obviously reduces the surface energy of the material, protects the internal fiber structure and tourmaline, and prolongs the service life of the twelve-hole far-infrared heating fiber. The twelve-hole far infrared heating fiber prepared by the invention has a warm-keeping effect.

The invention discloses an anti-ultraviolet polyester fabric and a preparation process, and belongs to the technical field of polyester fabrics. Comprising the following raw materials in parts by weight: 81-97 parts of polyethylene terephthalate slices, 2-4 parts of a toughening agent, 3-7 parts of an anti-ultraviolet agent and 1-3 parts of an antioxidant. The novel triazine anti-ultraviolet agent is synthesized, due to the unique molecular structure of the novel triazine anti-ultraviolet agent, the ultraviolet property and the antibacterial property of the polyester fabric are remarkably improved, migration is not prone to occurring, and the lasting performance of the fabric can be kept; the anti-ultraviolet agent is added before spinning in a blending manner and is firmly combined with the polyester substrate, so that the problem that the anti-ultraviolet agent is easy to fall off in a traditional surface finishing method is solved, the washing fastness is good, and the service life is long; in conclusion, the invention provides the polyester fabric with lasting anti-ultraviolet performance, antibacterial function and high stability and the preparation method of the polyester fabric, and the polyester fabric has a good application prospect in the technical field of polyester fabrics.