131 results about "Polybutylene succinate" patented technology

The invention discloses an anti-shrinkage light, soft and elastic sole foaming material and a preparation method thereof, and belongs to the technical field of footwear products. The light, soft and elastic sole foaming material is formed by chemically foaming an EVA (Ethylene Vinyl Acetate) composite raw material, the EVA composite raw material is prepared from 50 to 70 parts of EVA, 20 to 40 parts of olefin thermoplastic elastomer, 10 to 20 parts of styrene elastomer, 1.5 to 3 parts of maleic anhydride grafted ethylene-octylene copolymer compatilizer, 0.4 to 0.8 part of peroxide cross-linking agent, 3 to 4 parts of foaming agent, 1 to 1.5 parts of zinc oxide, 1 to 1.5 parts of polyethylene wax substance and 0.5 to 1.5 parts of poly (butylene succinate). 0.3 to 1 part of polyamide 12 microspheres and 2 to 3 parts of nano montmorillonite. The foaming material can resist shrinkage when being used as a shoe sole part, and has good rebound performance and the like, so that the high-quality requirement of sneakers, the mass production stability and the like are met.

The invention relates to the technical field of high polymer materials, in particular to a degradable PHA tableware material and a preparation method thereof. The degradable PHA tableware material overcomes the problem that the degradable PHA tableware material is poor in mechanical property and antibacterial property. The preparation method comprises the following steps: drying polyhydroxyalkanoate, poly (butylene succinate), acetylated lignin, nano-zinc oxide, chitosan oligosaccharide and hexagonal boron nitride, carrying out melt extrusion on the dried materials, maleic anhydride grafted PHA, acetyl tributyl citrate and cinnamyl aldehyde in a double-screw extruder, carrying out injection molding, and carrying out plasma treatment activation. Polyurethane antibacterial slurry containing silver-loaded zeolite is sprayed, the tableware material with the body-surface synergistic enhancement function is finally obtained, and the impact strength, rigidity and antibacterial rate of the material are improved.

The present application relates to the technical field of degradable packaging. Particularly disclosed are a degradable food container and a preparation method therefor. The degradable food container comprises a paper food container base body and a degradable coating applied on the paper food container base body, wherein the degradable coating is prepared from the following raw materials in parts by weight: 40-50 parts of polylactic acid; 10-15 parts of polybutylene succinate; 15-20 parts of polyglycolic acid; 10-20 parts of cassava starch; 5-8 parts of an external additive; 1.2-1.8 parts of montmorillonite; 0.2-0.8 parts of boron nitride nanotubes; and 1.5-2.5 parts of modified hemp fibers. The preparation method therefor comprises: heating polylactic acid, polybutylene succinate and polyglycolic acid to a molten state, then adding cassava starch and an external additive thereto, finally adding montmorillonite, boron nitride nanotubes and modified hemp fibers thereto, performing extrusion granulation, melting and then coating same on the surface of the paper food container base body, cooling same, and then cutting and forming same into a container to obtain the degradable food container. The degradable food container of the present application can exhibit excellent temperature change resistance when being subjected to temperature change caused by an external environment.

The application discloses a kind of landscape flowerpot production polyester degradable plastics and preparation method thereof, belong to degradable plastics production technical field, first, landscape flowerpot production polyester degradable plastics includes following mass parts raw materials: polylactic acid 50~70 parts, polybutylene succinate 20~35 parts, modified polyhydroxy fatty acid ester 10~15 parts, rare earth strontium aluminate coated cerium oxide core-shell powder 0.8~1.2 parts, antioxidant 0.3~0.8 parts, lubricant 0.5~1.0 parts.The application is improved by modification PHA (promote interface compatibilization and low temperature toughness) and core-shell powder (enhance anti-ultraviolet and degradation control), combined with PLA / PBS basic system, comprehensively solve the core defects of landscape flowerpot material. Example data confirms that its low-temperature impact strength is increased by more than 50%, yellowing rate is reduced by more than 80%, rigidity remains stable, degradation rate is controllable, has outstanding environmental protection and market value.

This disclosure provides formulations and processes that reduce the injection molding cycle times for poly(hydroxyalkanoate) blends which may contain a succinate polymer such as poly(butylene succinate), a filler such as lignocellulosic biomass and other additives. Blending of PHA with the second polymer may increase biodegradability and compostability.

The present invention relates to a wad (30) that is at least partially biodegradable for shot or bullet cartridges (10), made of a single piece of plastic. Said wad (30) comprises one or more polymers, including one or more polybutylene succinate polymers, and calcium carbonate. The mass fraction of said polymer(s) in said wad (30) is greater than or equal to 70%, the mass fraction of calcium carbonate in said wad (30) is greater than or equal to 6.5%, and the polybutylene succinate polymer(s) constitutes the majority by mass in said wad (30).

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.

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.

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.

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 application discloses a modified polylactic acid composite cable tie, which is made of a modified polylactic acid composite material, and raw materials of the modified polylactic acid composite material include, in percentage by weight, polylactic acid 15-50%, polybutylene succinate 15-50%, polybutylene adipate terephthalate 15-50%, and processing aids 5.1-15%. The processing aids include a release agent and a nucleating agent, the release agent includes pentaerythritol tristearate, and the nucleating agent is composed of an organic nucleating agent and an inorganic nucleating agent in a weight ratio of 2:1-10:1. The modified polylactic acid composite material can be used to prepare the cable tie by means of injection molding.

The application provides a preparation method of a biodegradable polybutylene succinate and polybutylene adipate block copolymer, in which succinic acid and adipic acid are respectively esterified and pre-polycondensed to prepare a prepolymer, the prepolymer is respectively polycondensed under high vacuum conditions, and then co-polycondensation is carried out. The method solves the problems of random distribution of polymer structure, many by-products, poor thermal performance, low molecular weight and the like in the prior art, the preparation method can make the polymer have a block structure, significantly reduce the generation of side reactions and the yield of by-products, improve the thermal performance and mechanical performance of the polymer, and a block polymer with excellent performance and high molecular weight is obtained.

The invention discloses a bio-based degradable wrapping film and a preparation method thereof in the field of green logistics and environment-friendly packaging. The wrapping film is prepared from polylactic acid, poly (butylene succinate), triethyl citrate, an antioxidant, calcium stearate and two novel inorganic modified compounds. Wherein the zirconium phosphate-sodium carboxymethyl cellulose intercalation compound constructs an organic-inorganic hybrid structure through alkaline intercalation, so that the dispersity and interfacial compatibility of the filler are effectively improved; the lanthanum titanate-zinc oxide core-shell nano hybrid is prepared by combining a solvothermal method with a urea precipitation process, has regular core-shell morphology, can synergistically enhance mechanical properties, regulate and control degradation rate, and endows antibacterial and ultraviolet shielding functions. The wrapping film prepared by melt blending and film blowing processes has high tensile strength, excellent ductility, good transparency and controllable compost degradability.

The invention relates to a method for producing polybutylene succinate (PBS), the raw materials of which comprise: a) a first starting component: dimethyl succinate (DMS) in monomeric form, and b) a second starting component: 1, 4-butanediol (BDO) in monomeric form.

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.

The invention relates to a method for producing highly linear and controllably branched polybutylene succinate, to a highly linear polybutylene succinate, and to the use of multifunctional comonomers for adjusting the degree of branching in polybutylene succinate.

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.

The invention provides a degradable environment-friendly suction nozzle based on a PLA / PBS composite material and a preparation method of the degradable environment-friendly suction nozzle. The suction nozzle is prepared from the following raw materials: polylactic acid, poly (butylene succinate), a flexible modification auxiliary agent and a hydrolysis-resistant auxiliary agent, the hydrolysis-resistant auxiliary agent is selected from a compound of an organic tin stabilizer, a silane coupling agent, triphenyl phosphate and diethyltin dilaurate, and is used for solving the problems of insufficient compatibility, heat resistance, durability, mechanical property and sealing property of the PLA / PBS composite material; the degradable environment-friendly suction nozzle can be safely used for a long time in a high-temperature and high-humidity environment.

The invention belongs to the technical field of propellants, and provides a boron-containing fuel-rich propellant and a preparation method thereof.The propellant adopts fluorine-containing composite boron powder to replace common boron powder; a combination of hydroxyl-terminated polybutadiene and hydroxyl-terminated poly (polyethylene glycol succinate) is adopted as an adhesive; hydroxyl-terminated polyethylene glycol terephthalate containing a benzene ring rigid structure is adopted as a reinforcing agent, a polyethylene glycol chain segment, epoxy resin on the surface of boron powder and an oxidizing agent form a hydrogen bond, and hydroxyl-terminated polyether ester fixes a solid filler in a curing network and adjusts the crosslinking density at the same time; chemical bonds are generated on the surfaces of filler particles, so that the modulus of the propellant is further improved; the perfluoro diacid diester is used as a plasticizer, so that the burning efficiency is improved while the processing property of the propellant is not influenced; ferric polyacrylate, 2, 4-dinitrophenoxy ethanol and the like are used as combustion regulators to promote efficient oxidation of the boron powder. The boron-containing fuel-rich propellant provided by the invention can solve the demand problem of a solid ramjet engine on a high-modulus boron-containing fuel-rich propellant.

The invention relates to the technical field of textile materials, in particular to a preparation method of biodegradable polyester dust-free cloth. The problem that interlayer bonding strength and air permeability of existing polyester dust-free cloth cannot be considered at the same time is solved. According to the invention, modified nano cellulose and polylactic acid are used as a spunbond layer, and modified starch, polylactic acid and poly (butylene succinate) are used as a melt-blown layer to construct an SMS sandwich structure; after hot pressing and pre-compounding, the polyester dust-free cloth is prepared through spunlace reinforcement, bio-enzyme activation and cross-linking finishing in sequence. The spunlace physical entanglement is used for replacing traditional gluing, the surface chemical crosslinking technology is combined, the interlayer binding force is remarkably enhanced on the premise that fiber micropores are not blocked, and the obtained dust-free cloth has the excellent mechanical property, breathability and biodegradation characteristic.

A method for manufacturing a biodegradable hot melt adhesive includes: mixing multiple biodegradable materials and carrying out a chemical cross-linking reaction to form a copolymer; subjecting the copolymer to a hydrolysis reaction to form a hydrolyzed copolymer; and mixing and heating the hydrolyzed copolymer, a first additive, and a second additive, to form the biodegradable hot melt adhesive. The multiple biodegradable materials include at least two of polylactide acid, polycaprolactone, polybutylene succinate, polyhydroxyalkanoates, and polyethylene glycol. The first additive includes at least one of a tackifying resin and a plasticizer. The second additive includes at least one of an antioxidant and a hydrolysis stabilizer. The method for manufacturing the biodegradable hot melt adhesive has the advantages of a simple production process and a low cost, and the manufactured biodegradable hot melt adhesive has excellent performance.

The application discloses an antibacterial self-cleaning PBS-based composite material and a preparation method thereof, and relates to the technical field of polybutylene succinate. The composite material is composed of the following components: PBS resin, PBAT resin, talcum powder, nano-titanium dioxide, zinc oxide, antibacterial powder, a compatilizer, a lubricant and an antioxidant. The particle size range, surface treatment mode and distribution state of the nano-titanium dioxide, zinc oxide and antibacterial powder in the PBS matrix are synergistically controlled, and a stable interface bonding structure is constructed in combination with the compatilizer, so that the functional components form an active region with continuity and high exposure on the material surface, the synergistic improvement of the antibacterial performance and the self-cleaning performance is realized, the problems of easy agglomeration of the functional filler, low utilization rate of active sites and unstable functional effect in the prior art are significantly improved, and the surface cleaning maintenance ability and long-term use reliability of the material in a complex use environment are improved.

The invention discloses a polylactic acid heat shrink film and a preparation method thereof, and the polylactic acid heat shrink film is prepared by melt blending and biaxial stretching of the following raw materials: 86-92 parts by weight of a polylactic acid modified material, 4-6 parts by weight of a blend of poly (adipic acid) / butylene terephthalate, polycarbonate and poly (butylene succinate), 1-2 parts by weight of poly (adipic acid)-1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate), 1-2 parts by weight of a compatilizer, 1-2 parts by weight of an antioxidant and 1-2 parts by weight of a lubricant. The composite material is prepared from the following components in parts by weight: 1 to 3 parts of 1, 2-propylene glycol ester, 1.5 to 3 parts of nano organic modified montmorillonite, 0.5 to 1 part of nano silicon dioxide, 2 to 4 parts of bio-based citrate plasticizer, 0.5 to 0.8 part of polymeric epoxy functionalized chain extender, and 0.3 to 0.6 part of hindered phenol antioxidant. Through blending modification of the raw materials and accurate regulation and control of the processing technology, the contradiction between the brittleness and the thermal shrinkage performance of the polylactic acid film is solved, and meanwhile the polylactic acid film has good mechanical performance and high barrier performance.

The application discloses a preparation method of an environment-friendly degradable single-side perspective sticker and belongs to the technical field of modified nanometer materials. The method comprises the following steps: (1) preparation of a multilayer composite structure: mixing polylactic acid and polybutylene succinate, adding nano-montmorillonite and a surface modifier to melt blend to form a first layer melt; stirring polybutylene adipate terephthalate and fluorescent carbon nanodots to form a second layer melt; and forming a film blank by co-extruding the first layer, a pressure-sensitive adhesive layer and the second layer; (2) construction of a nanometer film: biaxially stretching the film blank, pressing a micropore array, immersing in a silver nanoparticle suspension and drying to obtain a nanometer film; (3) functionalization treatment of a coating layer: immersing in a fluorine-containing nanometer coating solution and solidifying; and (4) post-treatment: secondary solidification. The obtained single-side perspective sticker is suitable for fields such as building and vehicle privacy films, and solves the problems of large pollution and slow degradation of traditional stickers.

The invention discloses a biodegradable hot melt adhesive and a preparation method thereof. The hot melt adhesive comprises the following components in parts by weight: 50-80 parts of polysuccinic acid-butylene adipate; 0 to 10 parts of poly (butylene succinate); 0-10 parts of thermoplastic starch; 0-3 parts of a compatilizer, 10-50 parts of a tackifier and 0-20 parts of wax. The preparation method comprises the following steps: mixing the poly (butylene succinate-adipate), the poly (butylene succinate) and the thermoplastic starch, adding the compatilizer to obtain a mixture, extruding to obtain a hot melt adhesive matrix, mixing the hot melt adhesive matrix with the compatilizer, the tackifier and the wax, and extruding to obtain the hot melt adhesive. According to the invention, the thermoplastic starch and the poly (butylene succinate) are connected to the chain segment of the poly (butylene succinate-adipate) through the modification of the reactive compatibilizer, so that the melt stability and the material affinity of the hot melt adhesive matrix are enhanced, and the preparation of the hot melt adhesive matrix with stable performance and higher strength is realized.

The present application relates to polyglycolic acid modification technical field, disclose a kind of polyglycolic acid toughening modified material and its preparation method and application.Polyglycolic acid toughening modified material is prepared from raw materials including the following components:65-85 parts by weight of polyglycolic acid, 15-30 parts by weight of polybutylene succinate, 1-4 parts by weight of modifier, 0.5-5 parts by weight of compatibilizer, 0.3-3 parts by weight of antioxidant;Wherein, the average particle size of polybutylene succinate in the polyglycolic acid toughening modified material is 100-900nm.Polyglycolic acid toughening modified material in the present application has high rigidity and high toughness, and has good application prospect in the field of spinning fiber and thin-wall injection molding products.

The present application relates to the technical field of stretch film, and particularly relates to a stretch film for medical accessories and a preparation method thereof.The stretch film for medical accessories comprises a middle layer, an upper surface layer covering one side of the middle layer, and a lower surface layer covering the other side of the middle layer; the raw materials of the upper surface layer comprise, by mass fraction, polylactic acid 60-100, polybutylene adipate terephthalate 10-20, activated graphene 5-10, functional master batch 2-8, and a compatibilizer 1-2; the raw materials of the middle layer comprise, by mass fraction, polyhydroxybutyrate 40-60, branched starch 20-40, amino-terminated polyamide amine 1-2, and a compatibilizer 1-2; and the raw materials of the lower surface layer comprise, by mass fraction, polylactic acid 60-100, polybutylene succinate 10-20, activated graphene 5-15, functional master batch 1-10, and a compatibilizer 1-2.The present application can be degraded under natural conditions, has more excellent barrier properties, and has good mechanical properties.

The application provides a high-strength torsion-resistant cable material and a preparation method thereof, and relates to the technical field of cable materials.The cable material comprises the following raw materials: 30-40 parts of polypropylene, 20-25 parts of high-density polyethylene, 5-10 parts of nitrogen-sulfur doped sodium alginate film, 1-1.5 parts of maleic anhydride grafted carbon spheres and 1-2 parts of polybutylene succinate.The cable material prepared by compounding polypropylene, high-density polyethylene, nitrogen-sulfur doped sodium alginate film, maleic anhydride grafted carbon spheres and polybutylene succinate has a rigid-flexible balance, excellent mechanical properties and excellent torsion resistance, reduces the risk of cracking, has good aging resistance, is particularly suitable for use in sling cables and has a good application prospect.

The invention discloses a wear-resistant composite material, a preparation method thereof and application of the wear-resistant composite material in woven bag preparation, and relates to the technical field of materials. The wear-resistant composite material is prepared from the following components: polyethylene, poly (butylene succinate), polyphenylene sulfide fibers, silicon carbide nanoparticles, aluminum oxide micro powder, graphene oxide, maleic anhydride grafted polyethylene, isophorone diisocyanate, corn starch, an antioxidant 1010, zinc stearate and a coupling agent KH-550. The preparation method comprises the following steps: hydrophobization and compatibility pretreatment of starch, preparation of high-concentration wear-resistant master batch, and stepped melt blending. The wear-resistant composite material can be applied to preparation of wear-resistant woven bags. The woven bag prepared from the wear-resistant material is particularly suitable for heavy packaging scenes such as ore sand and building materials which are prone to severe friction, the packaging breakage rate can be remarkably reduced, efficient degradation can be achieved within 180 days, and white pollution is avoided.