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174 results about "Polybutylene" patented technology

Polybutylene (polybutene-1, poly(1-butene), PB-1) is a polyolefin or saturated polymer with the chemical formula (C₄H₈)ₙ. It should not be confused with polybutene, a low molecular weight oligomer. Polybutylene is produced by polymerisation of 1-butene using supported Ziegler–Natta catalysts. PB-1 is a high molecular weight, linear, isotactic, and semi-crystalline polymer. PB-1 combines typical characteristics of conventional polyolefins with certain properties of technical polymers.

Silane crosslinked low-smoke halogen-free flame-retardant oil-resistant polyolefin cable material and preparation method thereof

The invention discloses a silane-crosslinked low-smoke halogen-free flame-retardant oil-resistant polyolefin cable material and a preparation method thereof. The method comprises the following steps: preparing a bio-based polyesteramide toughening phase which is pre-polymerized by castor oil-based polyamide and poly (butylene adipate-co-terephthalate) and is terminated by itaconic anhydride; the preparation method comprises the following steps: self-assembling phytic acid and melamine to wrap ammonium polyphosphate, so as to prepare supramolecular flame-retardant gel powder; the method comprises the following steps: grafting aramid pulp fibers by using a phosphorus-containing silane coupling agent to prepare a reactive liquid crystal reinforced phase; the preparation method comprises the following steps: blending and banburying the components with a hydrogenated styrene-isoprene-styrene block copolymer, an antioxidant and a peroxide cross-linking agent, carrying out dynamic vulcanization and interface bonding, and carrying out extrusion and electron beam irradiation to finally crosslink. An interpenetrating-topology network structure is formed in the prepared cable material, the crosslinking degree is larger than or equal to 82%, and the cable material is rapid in crosslinking, excellent in oil resistance, low in smoke and free of toxicity and is particularly suitable for super high-rise building hanging cables, deep sea exploration cables and new energy automobile liquid cooling cables.
Owner:JIANGSU CARRETT TECH CO LTD

Degradable antibacterial plastic packaging bag and preparation method thereof

The application belongs to the technical field of plastics, and particularly relates to a degradable antibacterial plastic packaging bag and a preparation method thereof. The degradable antibacterial plastic packaging bag comprises the following raw materials in parts by weight: polycaprolactone 70-90 parts; polybutylene adipate terephthalate 20-40 parts; Cr and Cu co-modified ZIF-8 5-20 parts; and cerium oxide tannic acid material 2-6 parts. The Cr and Cu co-modified ZIF-8 synergistically improves the antibacterial performance of the packaging bag, and the addition of the cerium oxide tannic acid material further improves the antibacterial performance of the packaging bag. Moreover, the degradable antibacterial plastic packaging bag prepared by the application has excellent mechanical properties.
Owner:GUANGZHOU SENJIAN NEW MATERIAL TECHNOLOGY CO LTD

Jacquard vamp material based on bio-based degradable polylactic acid (PLA) and preparation method thereof

The invention discloses a jacquard vamp material based on bio-based degradable polylactic acid (PLA) and a preparation method thereof, and relates to the technical field of shoe materials. The jacquard vamp material is of a three-layer jacquard structure formed by integrally weaving PLA composite filaments through a jacquard warp knitting machine. The PLA composite filament is prepared from the following raw materials in parts by weight: 80-95 parts of polylactic acid (PLA) slices, 5-15 parts of poly (butylene adipate / terephthalate) (PBAT), 3-8 parts of a flexibilizer, 1-3 parts of a compatilizer, 0.5-2 parts of an anti-hydrolysis agent and 0.5-1.5 parts of a lubricant. According to the invention, the bio-based PLA is used as a main raw material and is matched with degradable auxiliaries such as PBAT, so that the whole vamp material can be completely biodegraded under a composting condition, the problem of environmental pollution of a traditional vamp is fundamentally solved, and meanwhile, through blending modification of PBAT and the flexibilizer, the flexibility and impact resistance of the PLA material are remarkably improved, and the vamp material has good application prospects. The requirements of the vamp material on softness, wear resistance and durability can be met.
Owner:福建富昆实业有限公司

Tear-resistant high-barrier biodegradable mulching film and preparation method thereof

The invention relates to the technical field of biodegradable high polymer materials, in particular to a tear-resistant high-barrier biodegradable mulching film and a preparation method thereof, and the tear-resistant high-barrier biodegradable mulching film is prepared from the following raw materials in parts by weight: 60-90 parts of poly (butylene adipate-co-terephthalate); 10 to 40 parts of poly (propylene carbonate); 0.5-5 parts of a plasticizer; 0.05 to 0.3 part of a cross-linking agent; 0.1 to 10 parts of talcum powder; 0.1 to 2 parts of a lubricant; 0.1-1 part of an anti-blocking agent; 0.1 to 1 part of an antioxidant; 0.1 to 1 part of an anti-ultraviolet agent; 0.1-1 part of a light stabilizer; 0.1 to 1 part of an anti-hydrolysis agent; 0.1-1 part of a nucleating agent; the plasticizer is poly (1, 2-propylene glycol adipate); and the cross-linking agent is 1, 4-bis (tert-butylperoxy) diisopropyl benzene. The film has good mechanical properties and water vapor transmission amount, can be completely biodegraded, and has good aging resistance.
Owner:CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES

Automobile interior composite material with antistatic and sound-absorbing functions and preparation method thereof

PendingCN121975172APolyesterFiber
The invention relates to the technical field of polyester degradable plastics, and particularly discloses an automotive trim composite material with antistatic and sound-absorbing functions and a preparation method thereof. The composite material comprises a composite material body and a sound absorbing material compounded on the surface of the composite material body, comprising the following components in parts by weight: 50-70 parts of a compound resin matrix of polylactic acid and poly (adipic acid-butylene terephthalate), 20-35 parts of multifunctional reinforced fibers, 5-10 parts of a structural conductive antistatic agent and 0.05-0.21 part of a microbial degradation triggering agent. The preparation method comprises the steps of fiber pretreatment and modification, conductive master batch preparation, raw material drying, mixing molding, sound-absorbing material compounding and the like. According to the invention, synergism of long-acting antistatic property, high sound absorption, controllable degradation and excellent mechanical property is realized, migration of an antistatic agent is avoided, the sound absorption coefficient is high, degradation is controllable, the process is simple, industrialization is feasible, and the composite material is suitable for automotive interior parts.
Owner:GUANGZHOU JINZHIDA AUTO PARTS CO LTD

High-performance implantable biomedical products based on polylactic acid and their preparation methods

This invention provides a high-performance implantable biomedical product based on polylactic acid (PLA) and its preparation method. The preparation method, by weight, involves first melt-blending 10-20 parts of polybutylene adipate succinate (PSA) with 1-2 parts of hydroxyapatite to obtain a PBSA / HA mixture; then mixing 78-89 parts of PLA with PBSA / HA and extruding the mixture via a twin-screw extruder to obtain PLA / PBSA / HA granules; finally, using a micro-injection molding process to prepare the high-performance implantable biomedical product. This method induces a strong shear field through micro-injection molding, enabling in-situ fiber formation of the PBSA dispersed phase within the PLA matrix. Simultaneously, the addition of a specific amount of hydroxyapatite significantly enhances the product's toughness, resulting in a product with excellent biocompatibility and osteoinductive activity.
Owner:SICHUAN UNIV

Polybutylene adipate terephthalate resin and biodegradable film comprising same

PCT designated stageWO2026079742A1Polymer sciencePolybutylene
The present invention relates to a polybutylene adipate terephthalate resin having a controlled biodegradation rate and excellent coatability and an article comprising same.
Owner:LG CHEM LTD

Birefringent polymer having bimodal molecular weight

An optically anisotropic polymer thin film includes a crystallizable polymer and an additive configured to interact with the polymer (e.g., via π-π interactions) to facilitate chain alignment and, in some examples, create a higher crystalline content within the polymer thin film. The polymer thin film may be characterized by a bimodal molecular weight distribution where the molecular weight of the additive may be less than approximately 50% of the molecular weight of the crystallizable polymer. Example crystallizable polymers include polyethylene naphthalate, polyethylene terephthalate, polybutylene naphthalate, polybutylene terephthalate, as well as derivatives thereof. Example additives, which may occupy up to approximately 10 wt. % of the polymer thin film, include aromatic ester oligomers, aromatic amide oligomers, and polycyclic aromatic hydrocarbons, for example. The optically anisotropic polymer thin film may be characterized by a refractive index greater than approximately 1.7 and an in-plane birefringence greater than approximately 0.2.
Owner:META PLATFORMS TECHNOLOGIES LLC

Biodegradable polyester composition with controllable degradation time and regeneration method thereof

The invention discloses a biodegradable polyester composition with controllable degradation time and a preparation method of the biodegradable polyester composition, and relates to the technical field of biodegradable materials. 20-40 parts by weight of carboxyl-terminated polylactic acid; 0.5 to 3.0 parts by weight of a bifunctional chain extender containing an acetal bond; 5 to 15 parts by weight of a polyethylene glycol-b-polycaprolactone block copolymer; 1-5 parts by weight of modified cellulose nanocrystals; and 0.1-0.5 part by weight of metal organic framework loaded lipase. By reasonably matching the components and optimizing the preparation process, the degradation time of the biodegradable polyester composition can be accurately controlled, and the degradation induction period and the complete degradation time can be adjusted as required. The compatibility of the components is good, the mechanical property and the processing stability of the material can be effectively improved, and the problem of inactivation or uneven dispersion of the components in the processing process is avoided.
Owner:SICHUAN HUANJU BIOTECHNOLOGY CO LTD

Aromatic carbodiimides, process for their production and use

The present invention relates to novel carbodiimides, to a process for their production, and to the use of the novel carbodiimides in ester-based polyols, in polyethylene terephthalate (PET), in polybutylene terephthalate (PBT), in polytrimethylene terephthalate (PTT), in copolyesters, in thermoplastic polyester elastomers (TPE E), in ethylene vinyl acetate (EVA), in polylactic acid (PLA) and / or in PLA derivatives, in polybutylene adipate terephthalate (PBAT), in polybutylene succinate (PBS), in polyhydroxyalkanoates (PHA), in blends, in triglycerides, in thermoplastic polyurethanes, in polyurethane elastomers, in PU adhesives, in PU casting resins, for PU coatings or in PU foams as stabilizers.
Owner:LANXESS DEUTSCHLAND GMBH

Synthesis method of water-based polyurethane color fixing agent for nylon dyed by acid dye

PendingCN121949742AIncrease dye uptake percentageHigh K/S valueDyeing processColour fastnessPolymer science
The invention discloses a synthetic method of a water-based polyurethane color fixing agent for nylon dyed by an acid dye, aiming at the property of nylon dyed by the acid dye, poly (butylene adipate-1000) and polyethylene glycol-1000 are mixed to prepare cationic water-based polyurethane, so that the dyeing percentage is increased, and the treated nylon has higher K / S value and color fastness; meanwhile, N, N-dimethyl-N, N-bis (2-ethoxyl) ammonium chloride is selected as a cationic chain extender of the waterborne polyurethane, compared with a traditional cationic chain extender, a neutralization procedure necessary for a traditional route is omitted, the risks of neutralization amount deviation, local acid excess and the like are avoided, and the production process is simplified.
Owner:NANTONG UNIV

Preparation method of high-barrier degradable material

PendingCN122255695APolymer sciencePtru catalyst
This invention discloses a method for preparing a high-barrier biodegradable material, comprising the following steps: A) Raw material pretreatment: Drying solid raw materials separately in a vacuum drying oven at 60-80℃ for 6-12 hours until the moisture content is below 0.05%; B) Melt blending: Mixing the dried raw materials with the remaining raw materials in a specific ratio until homogeneous. This invention significantly improves the barrier properties of the material through the synergistic effect of benzyl glycidyl ether, transesterification modified monomers, 1,4-succinic acid, nano-montmorillonite, and epoxy-modified graphene oxide. A balanced mechanical property is achieved through the rational ratio of polylactic acid and polybutylene adipate-terephthalate, as well as the effects of catalysts, chain extenders, and compatibilizers. The material achieves a degradation rate of 85.2% within 90 days, exhibiting good biodegradability and meeting environmental protection requirements. Through an optimized melt blending process, the material possesses good processing performance and can be molded using conventional plastic processing equipment, facilitating industrial production.
Owner:DONGGUAN GUANYI NEW MATERIAL TECH CO LTD

Antibacterial film material and method for preparing the same

The application discloses an antibacterial film material in the field of film materials and a preparation method thereof, and comprises the following components in parts by weight: polylactic acid-based polymer 80-90 parts, polybutylene adipate terephthalate (PBAT) 10-20 parts, antibacterial toughening agent 3-5 parts, initiator 0.05-0.1 part and antioxidant 0.2-0.3 part. Through polymer design and crosslinking, the material improves the toughness and tensile capacity, is suitable for film application, the addition of PBAT further enhances the flexibility, the compactness of the polylactic acid-based polymer increases the barrier capacity to gas and liquid, the introduction of the antibacterial toughening agent enables the film to have antibacterial effect, prolongs the service life of the material and has important value in food hygiene application.
Owner:GUANGDONG YURUN NEW MATERIALS CO LTD

Low-viscosity waterborne polyurethane adhesive and application thereof

The invention relates to the technical field of waterborne polyurethane, in particular to a low-viscosity waterborne polyurethane adhesive and application thereof. Comprising a component A and a component B. The component A comprises active molecules, an end-capping reagent and a chain extender, the active molecules comprise a first active molecule, a second active molecule, a third active molecule, a fourth active molecule and a fifth active molecule, the first active molecule is prepared from hydroxyl-terminated rubber, isocyanate and dimer acid polyester polyol, and the second active molecule is prepared from hydroxyl-terminated rubber, isocyanate and dimer acid polyester polyol. The second active molecule comprises a polyoxypropylene polyoxyethylene block copolymer, the third active molecule comprises modified polyether polyol, the fourth active molecule comprises polybutylene adipate, the fifth active molecule comprises dimethylolpropionic acid, and the weight ratio of the second active molecule to the fourth active molecule is 1: (2-5). And the component B comprises a curing agent. The curing agent has excellent thermal shock resistance and high-temperature aging resistance, and is suitable for various curing agents.
Owner:SHANGHAI HONGLEI NEW MATERIALS TECHNOLOGY CO LTD

Resin composition and molded article obtained by molding therefrom

PendingJP2026069907APolymer sciencePolybutylene
The present invention provides a resin composition that exhibits excellent conductivity, carbon black shedding prevention, and abrasion resistance, and that can maintain a high molecular weight after solidification extrusion molding, as well as a molded article formed therefrom. [Solution] A resin composition characterized by containing (A) 3 to 15 parts by weight of (B) conductive carbon black (component B) having a DBP oil absorption of 200 to 400 ml / 100 g, (C) aromatic carbodiimide compound (component C) and (D) 0.005 to 1 part by weight of phosphonic acid ester (component D) having an acid value of 0.01 to 0.30 mgKOH / g, per 100 parts by weight of polybutylene naphthalate resin (component A).
Owner:TEIJIN LTD

Preparation method and application of bio-based waterborne polyurethane polymer dye

The invention discloses a preparation method and application of a bio-based waterborne polyurethane polymer dye, and the preparation method comprises the following steps: mixing isophorone diisocyanate, polybutylene glycol, castor oil and dibutyltin dilaurate, adding N, N-dimethylformamide, and heating for prepolymerization reaction to obtain a polyurethane prepolymer; a 2, 2-dimethylolpropionic acid solution is added for a chain extension reaction, and polyurethane subjected to chain extension is obtained; adding an aloe-emodin solution for reaction; and finally adding triethylamine for neutralization, removing the solvent, and adding water for emulsification treatment to obtain the bio-based waterborne polyurethane polymer dye. The polymer dye coated fabric prepared by the method shows remarkable color change in different pH environments, and is short in color change response time and excellent in cycle durability. In addition, the polymer dye coated fabric shows good ultraviolet resistance, hydrophobicity and high fastness to washing.
Owner:YANCHENG INST OF TECH

High-transparency ultralow-haze PBAT-based flexible film as well as preparation method and application thereof

The invention relates to the technical field of biodegradable materials, in particular to a high-transparency ultralow-haze PBAT-based flexible film and a preparation method and application thereof, and the high-transparency ultralow-haze PBAT-based flexible film is composed of poly (butylene adipate-co-butylene terephthalate), poly (butylene succinate-co-butylene terephthalate), an antioxidant, an anti-hydrolysis agent, an anti-blocking agent and a dispersing agent in parts by weight. The polyethylene terephthalate-butylene adipate is used as a main component, the polyethylene terephthalate-butylene adipate can be added as required, and a small amount of other assistants are added to guarantee the performance of the film. According to the invention, PBAT and PBST are blended to improve the optical performance of the film, casting cooling inhibits the formation of a large crystal region, and the transparency is synergistically increased; the problems of low transparency and high haze of the PBAT-based film are solved, the use requirement of the packaging field on the film material is met, and the application of the PBAT material is further widened.
Owner:NINGBO INOVI NEW MATERIALS CO LTD

A polyurethane lubricant, its preparation and use

PendingCN122326306APolymer sciencePolybutylene
The application belongs to the technical field of lubricants, and provides a polyurethane lubricant, a preparation method and application thereof.The polyurethane lubricant provided by the application comprises the following components in percentage by weight: 8-20% of a polyurethane thickening agent, 80-90% of base oil, 1.5-3.5% of an antioxidant, 0.5-2.0% of extreme pressure anti-wear agent, and 0.1-1.5% of lubricant; the polyurethane thickening agent is formed by polycondensation reaction of 4,4'-dicyclohexyl methane diisocyanate (HMDI), polybutylene adipate (PBA) and hydroquinone di(2-hydroxyethyl) ether (HQEE). The polyurethane lubricant provided by the application has excellent high-temperature stability, wide temperature range performance, and extremely high load-carrying and wear resistance.
Owner:SHANGHAI HD CHEM CO LTD

Microporous litchi preservative film and preparation method thereof

The invention belongs to the field of food fresh-keeping packaging, and discloses a microporous litchi fresh-keeping film and a preparation method thereof, the microporous litchi fresh-keeping film is formed by compounding an inner layer, a middle layer and an outer layer; the inner layer is a blend of 60-70 parts of polylactic acid, 25-35 parts of chitosan and 3-5 parts of a rosemary extract, and the rosemary extract is powder obtained after ethanol reflux extraction and freeze drying; the middle layer is a blend of 4-6 parts of nano titanium dioxide, 2-4 parts of microencapsulated sodium bicarbonate, 5-8 parts of montmorillonite and 100 parts of poly (butylene succinate), the core material is sodium bicarbonate, and the mass ratio of the core material to the capsule material is 3: 1; the outer layer is a blend of 100 parts of polybutylene adipate-terephthalate and 5-8 parts of beewax, and the thickness ratio of the inner layer to the middle layer to the outer layer is 3: 2: 3; the invention aims to provide the microporous litchi preservative film and the preparation method thereof so as to solve the problems that the litchi preservative film in the prior art is poor in hydrophobicity, insufficient in gas regulation capability, incapable of effectively inhibiting peel discoloration and the like.
Owner:JIANGYIN CITY DEHUI HEAT SHRINKABLE PACKING MATERIAL

Foamed polymer compositions including a nanostructured fluoropolymer

A foamed polymer composition includes a matrix polymer component, and from 0.01 wt % to 2 wt %, based on the weight of the polymer composition, of a nanostructured fluoropolymer, a nanostructured fluoropolymer encapsulated by an encapsulating polymer, or a combination thereof. The matrix polymer component includes polybutylene terephthalate (PBT), polyetherimide (PEI), polyethylene terephthalate (PET), polycarbonate (PC), poly(p-phenylene oxide) (PPO), polystyrene (PS), polyphenylene sulfide (PPS), polypropylene (PP), polyamide (PA), polytrimethylene terephthalate (PTT), polyethylene naphthalate (PEN), polybutylene naphthalate (PBN), copolymers thereof, or a combination thereof. Methods for forming foamed polymer compositions, including core-back molding methods and extrusion foaming methods, are also described.
Owner:SHPP GLOBAL TECH BV

Compostable cold pack comprising an absorbant substrate loaded with water

PCT designated stageWO2026117636A1Flexible coversWrappersCellulosePolymer science
Compostable cold packs have a compostable film sealingly enclosing a fill material. The fill material includes a compostable or biodegradable sponge contributing 1% to 10% weight solids to the fill material, at least 90% by weight water, and a biocide, with the sponge in an expanded state as a result of absorption of the water and biocide. The compostable film comprises (1) a cellulose based film that includes a sealant film comprised of either a) polybutylene adipate terephthalate (PBAT), b) polybutylene succinate (PBS), c) un-oriented polylactic acid (PLA), d) biaxially oriented PLA (BOPLA), or (e) a cellulose wood pulp and starch blend; (2) a BOPLA based film that includes an inner sealant film comprised of either a) polybutylene adipate terephthalate (PBAT), b) polybutylene succinate (PBS), or c) un¬ oriented polylactic acid (PLA); or (3) a single film of heat sealable BOPLA. Methods of making the cold packs are also disclosed.
Owner:MICROTEK HOLDINGS INC

Degradable food packaging bag and preparation process thereof

ActiveCN121224270BAddress degradabilitySolve the mechanical propertiesFlexible coversWrappersPolymer sciencePolybutylene
The application relates to the technical field of food packaging, in particular to a degradable food packaging bag and a preparation process thereof. The packaging bag comprises two base films and a functional adhesive layer which is compounded between the two base films. The base film is made of raw materials including the following components in parts by mass: polybutylene adipate terephthalate 50-70 parts; polylactic acid 20-35 parts; corn starch 10-25 parts; and a compatilizer 2-6 parts. The functional adhesive layer is made of raw materials including the following components in parts by mass: water-based polyurethane emulsion 100 parts; hydrophobic silicon dioxide particles 3-15 parts; chitosan derivative modified micron zinc oxide 5-20 parts; and a plasticizer 1-5 parts. The application provides a method which considers the degradation, antibacterial property and mechanical property, and has the effects of being safer and more reliable.
Owner:ZHEJIANG SUPER STAR PACKAGING MATERIAL CO LTD

A resin composition and a biodegradable resin molded product comprising the same

PendingUS20260125553A1MethacrylatePolymer science
A resin composition that includes a polybutylene adipate terephthalate; a polylactic acid; and an acrylate-based copolymer, where the acrylate-based copolymer includes i) a first repeating unit derived from an alkyl (meth)acrylate-based monomer, ii) a second repeating unit derived from an epoxy (meth)acrylate-based monomer, and iii) a third repeating unit derived from an alkylene glycol (meth)acrylate-based monomer; and a biodegradable resin molded product including the resin composition. The resin composition exhibits excellent mechanical properties while maintaining the inherent biodegradability of polybutylene adipate terephthalate or polylactic acid.
Owner:LG CHEM LTD

Preparation method of bifunctional modified calcium carbonate with capacity and reinforcement

ActiveCN118063938BBenzoic acidPolybutylene
The application discloses a preparation method of a bifunctional modified calcium carbonate with capacity and enhancement effects, and belongs to the technical field of biodegradable materials. Firstly, 4-aminomethyl benzoic acid solution is prepared and sprayed on the surface of pretreated calcium carbonate, and high-speed heating and mixing are conducted to obtain pretreated calcium carbonate. Secondly, folic acid is reacted in a solvent to obtain an active ester solution; the active ester solution is slowly added and dropped in a high-speed mixer while stirring to conduct a reaction, and modified calcium carbonate is obtained after drying. Finally, polybutylene adipate terephthalate and the modified calcium carbonate are subjected to high-speed mixing to obtain polybutylene adipate terephthalate / folic acid-4-aminomethyl benzoic acid-calcium carbonate mixture; the mixture is melt-extruded by using a double-screw extruder to obtain bifunctional modified calcium carbonate, the tensile strength of which is increased to 30.36 Mpa, and the elongation at break is increased to 698%; the contact angle of the prepared folic acid-4-aminomethyl benzoic acid-calcium carbonate is increased to 137.5 degrees, and the activation rate is increased to 99.10%.
Owner:EAST CHINA ENGINEERING SCIENCE AND TECHNOLOGY CO LTD

Cross-linking preparation process of polybutylene-1 and polyethylene blend

The invention discloses a cross-linking preparation process of a polybutylene-1 and polyethylene blend, which is applied to the field of high polymer materials, an optimal formula is selected through small-batch tentative production, then the polybutylene-1 and polyethylene blend is prepared in batches according to the formula, and in the batch preparation process, the cross-linking preparation process is simple, the production cost is low, and the production efficiency is high. A production control system used for optimizing process parameters is introduced, and pre-optimization of the process parameters is achieved through a prediction model before production; during production, real-time accurate regulation and control of the gel content are realized by utilizing online spectrum monitoring and closed-loop feedback, and timely intervention is performed before quality deviation occurs by virtue of a trend early warning function of a process database; after production, the production data of each batch of products recorded by the process database can be returned to the prediction model for continuously optimizing the prediction model, so that the prediction is more and more accurate, the performance parameters of each batch of products are kept highly uniform, and the defective rate is reduced.
Owner:JIANGSU BAOLITAI NEW MATERIAL TECH CO LTD

High-barrier long-acting antibacterial composite environment-friendly packaging material and preparation method thereof

The invention relates to the technical field of packaging materials, and discloses a high-barrier long-acting antibacterial composite environment-friendly packaging material and a preparation method thereof, and the high-barrier long-acting antibacterial composite environment-friendly packaging material is formed by compounding an inner-layer film, a middle-layer film and a surface-layer film. The inner-layer film is prepared from low-density polyethylene, metallocene linear low-density polyethylene and the like; the middle-layer film is a reactive compatibilization layer and comprises an ethylene-vinyl alcohol copolymer, polybutylene terephthalate adipate and a styrene glycidyl methacrylate copolymer, and compatibility and toughness are improved through an in-situ reaction; a surface film is a functional layer, phytic acid and bifunctional modified montmorillonite are utilized to construct a hybrid network, and the sedum sarmentosum extract and the chitosan quaternary ammonium salt are anchored. By adopting a step-by-step film preparation and hot-pressing compounding process, the obtained material has the characteristics of high barrier, high strength and long-acting bacteriostasis, and the glue-free compounding process is environment-friendly and safe.
Owner:HUIZHOU LIANXING COLOR PRINTING & PACKAGING CO LTD

PFM-nanocellulose-hydroxyapatite synergistically reinforced biodegradable materials and applications

PendingCN122255687AImprove mechanical propertiesAddressing resiliencePolymer scienceLiquid medium
The application relates to the technical field of biodegradable toy materials, and discloses a PFM-nanocellulose-hydroxyapatite synergistically reinforced biodegradable material and application, which is prepared from components such as polylactic acid, polybutylene adipate terephthalate, polypropylene carbonate, polybutylene succinate, hydrophobic pore-keeping modified plant fiber micro powder, antibacterial microcapsules, nanocellulose paste and grafting compatibilizer. In the preparation process, quaternary resin is premixed and melted, nanocellulose paste is injected laterally, and a high-vacuum in-situ devolatilization process is combined, so that liquid medium is removed in real time and in-situ dispersion of nanocellulose is realized. According to the scheme, a physical interwoven space reinforcing structure is constructed in the matrix, the toughness and the mechanical modulus of the material are synergistically improved, long-acting bacteriostasis is realized by relying on controlled release of the microcapsules, the problems of reinforcing phase agglomeration and short bacteriostasis time are solved, and the application is suitable for production of high-performance long-acting antibacterial biodegradable toys.
Owner:SHOUKANG MEDICAL SCI & TECH (SHANDONG) CO LTD

A compound modified masterbatch for improving the heat-sealing strength of PLA tea bags and its preparation method

This invention discloses a compound modified masterbatch for improving the heat-sealing strength of PLA tea bags and its preparation method, belonging to the field of polymer materials technology. By weight, it comprises the following components: 35-50 parts polylactic acid carrier; 18-28 parts toughening agent; 3-8 parts composite nucleating agent; 1-4 parts crystallization promoter; 2-5 parts interface compatibilizer; and 0.5-2 parts antioxidant. The toughening agent is a blend of polybutylene adipate-terephthalate and polybutylene succinate in a mass ratio of (1.5-2.5):1. The composite nucleating agent is composed of an organophosphate nucleating agent and an acylhydrazine compound in a mass ratio of 1:(0.8-1.5). This invention systematically improves the heat-sealing strength of PLA tea bags from three dimensions—toughening, nucleation, and promotion—from the perspectives of interfacial adhesion, crystal structure, and molecular motion, overcoming the limitations of single modification methods.
Owner:LIANYUNGANG VERKE FIBER MATERIAL TECHNOLOGY CO LTD

Laminated biodegradable film for packaging pharmaceutical compositions

Biodegradable films and pouches ("sachets") suitable for packaging pharmaceutical formulations, e.g., vaccines. The biodegradable films and sachets contain a top layer of cellophane, an adhesive layer, and a seal layer. These layers facilitate maintenance of active ingredient viability. The top layer includes cellophane for barrier protection, while the seal layer incorporates food-grade polybutylene derivatives. The films can be made into pouches by joining a front and a back composite material at a peripheral edge to form an internal compartment that encloses the pharmaceutical formulations. The biodegradable films are compostable in soil and safe for animal consumption. The biodegradable pouches are useful for vaccinating wildlife population, such as racoons.
Owner:BOEHRINGER INGELHEIM VETMEDICA GMBH +3

Preparation method and application of bamboo powder filled reinforced degradable plastic

PendingCN122325942APolymer sciencePolybutylene
This invention belongs to the field of biodegradable plastic preparation technology, specifically relating to a method for preparing and applying bamboo powder-filled reinforced biodegradable plastics. Cellulose in bamboo powder is extracted using a eutectic solvent and then compounded with polylactic acid (PLA) and polybutylene adipate / terephthalate (PBAT) to prepare high-performance biodegradable plastics. Bamboo powder, as a natural and renewable resource, has broad application potential, but its use in plastics faces problems of poor dispersibility and compatibility. This invention treats bamboo powder with a eutectic solvent, breaking the hydrogen and chemical bonds between lignin, hemicellulose, and cellulose, thus improving the extraction efficiency and purity of the bamboo powder. The extracted bamboo powder cellulose, compounded with PLA and PBAT, significantly improves the mechanical and degradation properties of the plastic. This composite material exhibits excellent performance in tensile strength and impact resistance, can achieve full degradation, and can reduce the long-term environmental impact of plastic waste. This paper utilizes bamboo powder, PLA, and PBAT to prepare biodegradable plastics, which has the advantages of wide availability of raw materials, low cost, and easy film formation, providing a green and environmentally friendly material and innovative process for the development of biodegradable plastics.
Owner:TIANJIN POLYTECHNIC UNIV