78 results about "Polypropylene carbonate" patented technology

The invention belongs to the technical field of polyurethane resin, and provides polyurethane resin, polyurethane synthetic leather and a preparation method and application thereof. The preparation raw materials of the polyurethane resin comprise the following components in percentage by mass: 11%-18% of modified polyol, 3%-9% of bio-based polyol A, 0.01%-0.02% of an antioxidant, 0.001%-0.003% of a catalyst, 5%-7% of isocyanate, 0.5%-3% of a chain extender, 0.1%-0.4% of a terminator, 0.02%-0.04% of an anti-visbreaking aid, 0.5%-3% of a polyether aid and 68%-73% of a solvent, wherein the preparation raw materials of the modified polyol comprise bio-based polyol, alcohol amine and binary acid; the bio-based polyol A comprises bio-based polypropylene carbonate dihydric alcohol. The polyurethane synthetic leather prepared by the preparation method disclosed by the invention has good slip resistance, excellent perspiration-resistant color fastness and relatively high blackness, and is suitable for yoga mats.

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.

The invention relates to the field of high polymer material processing, and discloses a high-efficiency low-energy-consumption granulation process and system for a full-biodegradable multiphase composite material, and the process comprises the following steps: feeding raw materials such as polypropylene carbonate, polyester, plant fibers and four-stage activated biomass hydroxyapatite into a double-screw extruder with the length-diameter ratio of not less than 64: 1 in a grading manner according to heat sensitivity; the temperature, the pressure and the shear field are cooperatively controlled, and three-section type temperature distribution of intensified melting, short-time reaction and rapid cooling is established; and carrying out three-stage gradient vacuum devolatilization and underwater pelletizing to obtain a finished product. The four-stage activated biomass hydroxyapatite is prepared by plasma etching, hydrophobic coating, interface coupling and melt pre-dispersion. The problem of degradation of heat-sensitive components is solved through graded feeding and asymmetric temperature control, the dispersity and interface bonding force of the filler are improved by utilizing a four-stage activation technology, closed-loop control is realized by combining online rheology monitoring and an energy consumption model, and continuous production of the full-biodegradable material with low energy consumption, low volatile matter and high mechanical property is realized.

The application discloses a solid-state electrolyte and a preparation method thereof and a solid-state battery. The solid-state electrolyte comprises a gel and a first fiber fabric; the gel coats the first fiber fabric and fills pores of the first fiber fabric; the first fiber fabric comprises first fibers interwoven together, and formation materials of the gel comprise an electrolyte and second fibers dissolved in the electrolyte; wherein the first fibers comprise polyvinylidene fluoride fibers, and the second fibers comprise polypropylene carbonate fibers. The application can improve the ion transmission capacity of the solid-state electrolyte under a liquid-poor condition, and has high safety.

The invention discloses a UV (ultraviolet)-heat dual-curing waterborne polyurethane emulsion and a preparation method thereof. According to the UV-thermal dual-curing waterborne polyurethane emulsion, the heat resistance, the water resistance and the mechanical property of UV-WPUA can be improved, and meanwhile, the storage stability and the yellowing problem of the UV-WPUA can be improved; the polyurethane foam is prepared from the following components in parts by weight: 60-70 parts of binary isocyanate; 35 to 45 parts of polypropylene carbonate; 0 to 12 parts of 1, 4-butanediol; 50 to 55 parts of an acrylate monomer; 0.1 to 0.2 part of p-hydroxyanisole; 0 to 18 parts of sulfydryl silane; 0.1 to 0.3 part of an organic tin catalyst; 5-10 parts of a solvent; 100 to 150 parts of deionized water; belongs to the technical field of coatings.

The invention discloses an SCR (Selective Catalytic Reduction) denitration catalyst regeneration method which comprises the following steps: carrying out cleaning and arsenic removal on an arsenic-poisoned SCR denitration catalyst, and regenerating to obtain a regenerated catalyst; preparing a mixed impregnation liquid containing a water repellent agent, polypropylene carbonate and an organic solvent; adhering the mixed impregnation liquid to the surface of the regenerated catalyst and immersing the mixed impregnation liquid into channels of the regenerated catalyst by using a vacuum pressure impregnation process; drying to remove the organic solvent, and curing the poly (propylene carbonate) on the surface and in pores of the regenerated catalyst; a heat treatment is performed to remove the poly (propylene carbonate) and induce chemical grafting of the hydrophobing agent to the catalyst to form a hydrophobic network. The hydrophobic agent is introduced into the surface and pore channels of the arsenic-removed catalyst to construct a hydrophobic network, so that the hydrophobicity of the regenerated catalyst is improved.

This invention discloses a photo / thermal dual-curing bio-based UV ink composition and its preparation method, relating to the field of UV-curable printing materials. It comprises the following raw materials in parts by weight: 100 parts of polypropylene carbonate diol-type polyurethane acrylate oligomer, 5-20 parts of a thermosetting component, 50-150 parts of an reactive diluent, 2-10 parts of a free radical photoinitiator, 0-80 parts of a colorant, and 0-10 parts of other additives; the thermosetting component includes eugenol-furfurylamine type benzoxazine monomer. The UV ink composition obtained by this invention can be heat-treated after photocuring. The polybenzoxazine network is interpenetrated after the formed polyurethane acrylate pre-crosslinked network, forming an interpenetrating or interpenetrating polymer network, and additional crosslinking can occur. This not only improves the strength and flexibility of the ink layer but also effectively enhances solvent resistance and adhesion, resulting in a UV ink composition with excellent overall performance.

This application discloses a composite fiber membrane and its preparation method, relating to the field of composite material technology. The preparation method includes: in-situ modification of a composite fiber membrane precursor with stearic acid to obtain the composite fiber membrane; the composite fiber membrane precursor is a polypropylene carbonate fiber membrane loaded with zinc oxide nanostructures. The composite fiber membrane proposed in this application, through in-situ modification of the polypropylene carbonate fiber membrane loaded with zinc oxide nanostructures using stearic acid, imparts hydrophobic properties to the composite fiber membrane. This prevents the rapid erosion of the zinc oxide nanostructures by environmental water molecules in humid environments, avoiding the problem of explosive release and rapid depletion of zinc ions in a short time, ultimately leading to antibacterial failure.

The present application relates to the field of film, specifically to a kind of high-temperature-resistant thermal medical film with stable imaging and its preparation process, introduce alumina phase in silica aerogel, modify silica aerogel doped with alumina phase with amino hetero naphthalene diphenyl poly aryl ether ketone;In order to give back layer, protective layer excellent mechanical damage resistance, make it after suffering mechanical scratch, self-repair at room temperature, restore excellent hydrophobicity, high temperature resistance, antistatic property, introduce self-repairing polyurethane in back layer and protective layer, with polypropylene carbonate glycol as soft segment, with isophorone diisocyanate as hard segment, 4,4'-dithiodiphenylamine, 4-hydroxyphenylboric acid as chain extender to synthesize self-repairing polyurethane;Epoxy silicone resin is used as the base coating of back layer and protective layer, introduce silicone slip agent in back layer, so that back layer has long-acting stable and non-migratory slip property.

The invention belongs to the field of lithium ion battery materials, and particularly relates to a solid electrolyte with high ionic conductivity and a preparation method thereof.According to the electrolyte, fluorinated cyclic carbonate grafted polyionic liquid is adopted as a polymer matrix, and lithium lanthanum zirconium oxide loaded on a nano graphene framework is matched to serve as ionic conductivity reinforcing filler; and adding lithium bis (fluorosulfonyl) imide, poly (propylene carbonate) and nano cellulose fibers, and compounding. The preparation method comprises the following steps: dissolving the fluorinated cyclic carbonate grafted polyion liquid and the lithium lanthanum zirconium oxide loaded on the nano graphene skeleton in anhydrous acetonitrile to form a solution, then adding the filler, the lithium salt and the cellulose fiber to form slurry, and carrying out coating, drying and hot press molding. According to the invention, a multi-layer ion transmission channel is constructed in the electrolyte, and the electrolyte has the characteristics of high ionic conductivity, wide electrochemical window, excellent interface stability and the like, can effectively inhibit the growth of lithium dendrites and improve the safety performance and cycle life of the battery, and is simple in preparation process, relatively low in cost and suitable for large-scale production.

The invention discloses a porous corn straw degradable film and a preparation method thereof, and belongs to the technical field of plastic films. The film is prepared from the following raw materials in parts by weight: 85-87 parts of polyadipic acid / butylene terephthalate (PBAT), 1-3 parts of polylactic acid (PLA), 5-10 parts of corn straw powder, 3-5 parts of polypropylene carbonate (PPC), 5-10 parts of starch, 3-5 parts of talcum powder and 1-3 parts of sodium bicarbonate. The preparation method comprises the following steps: drying and mixing the raw materials, carrying out melt blending in a double-screw internal mixer, carrying out granulation, and carrying out blow molding on the obtained master batch to prepare the film. The preparation method is characterized in that sodium bicarbonate is decomposed to release carbon dioxide gas during film blowing and heating, a uniform microporous structure is formed in a film matrix, and the decomposed product sodium carbonate plays a reinforcing role at the same time. The corn straw, the PPC, the starch and the talcum powder are added to generate a synergistic effect with a PBAT / PLA matrix, so that the mechanical property, the barrier property and the ultraviolet shielding function of the film are remarkably improved on the premise of ensuring complete biodegradability. The film has the advantages of being low in cost, uniform in pore structure, good in mechanical property, low in water vapor permeability, good in heat preservation effect and the like, and is an environment-friendly agricultural mulching film material with great application potential.

The invention relates to the field of high polymer materials, and particularly discloses a biodegradable composite express packaging bag and a preparation method thereof. A biodegradable composite express packaging bag comprises an outer layer film, a fiber layer, a framework layer, a fiber layer and an inner layer film. The outer layer film and the inner layer film are PBAT blended films, and the PBAT blended films are prepared from the following raw materials in parts by weight: 5 to 6 parts of PBAT resin, 1 to 1.5 parts of polyglycolic acid, 3 to 4 parts of polypropylene carbonate, 0.05 to 0.1 part of compatilizer, 0.15 to 0.2 part of antioxidant and 0.1 to 0.15 part of lubricant; the raw materials of the fiber layer comprise PBAT resin, PBST resin and a compatibilizer, and the fiber layer is prepared through melt differential electrostatic spinning; and the framework layer is an aramid nanofiber layer loaded with MOF-808. The biodegradable composite express packaging bag has the advantages of being high in longitudinal and transverse tensile strength, high in tear resistance, suitable for express packaging, capable of being biodegraded and excellent in barrier property.

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.

This invention discloses a nano-oxygen barrier functional masterbatch for the outer surface of packaging bottles and its preparation method, belonging to the field of polymer packaging material technology. The method involves first homogenizing and ultrasonically dispersing nisin, glycerol, montmorillonite K10, and silver nanoparticles in an aqueous phase, then adding nanocellulose to obtain a hybrid oxygen barrier suspension. Next, polylactic acid, polypropylene carbonate, and triglycidyl isocyanate are melted and laterally injected into the suspension. The mixture is then subjected to twin-screw extrusion, vacuum devolatilization, and granulation to obtain the masterbatch. This masterbatch can form an oriented "brick-and-mortar" barrier structure in the matrix, enhancing interfacial bonding and the stability of the nano-silver, significantly improving the oxygen barrier, moisture barrier, peel strength, and long-lasting antibacterial properties of the packaging outer surface.

There is a process for the preparation of polypropylene carbonate having the step of copolymerization of propylene oxide and carbon dioxide (CO2) in the presence of a catalytic system including:at least one catalyst selected from complexes of a transition metal having general formula (I):at least one co-catalyst selected from:(a) ionic compounds having general formula (II):and(b) ionic compounds having general formula (III):

The invention discloses a method for purifying and modifying polypropylene carbonate based on supercritical CO2. The method is characterized by comprising the following steps: carrying out dry mixing on a polypropylene carbonate raw material and an amino-modified nano filler which accounts for 5-10wt% of the mass of the polypropylene carbonate raw material; adding the mixed material into a screw extruder through a feeder, controlling the operation temperature of the screw extruder to be 60-120 DEG C, injecting supercritical CO2 with the pressure of 8-30 MPa and the temperature of 40-120 DEG C into the middle rear end of the screw extruder, feeding the material treated by the screw extruder into a drop-type devolatilization device, controlling the cavity temperature of the drop-type devolatilization device to be 60-120 DEG C and the vacuum degree to be 20-80 kPa, and carrying out vacuum drying, so as to obtain the high-temperature-resistant low-temperature-resistant low-temperature-resistant low-temperature-resistant low-temperature-resistant low-temperature-resistant low-temperature-resistant low-temperature-resistant low-temperature- The method has the advantages that the content of the propylene carbonate is remarkably reduced, and meanwhile, the mechanical property and the thermal stability of the material are improved.

The invention discloses a heat-resistant biodegradable film-making material, which is prepared from the following ingredients in parts by mass: 30 to 60 parts of modified polylactic acid, 20 to 35 parts of toughening agents, 10 to 18 parts of multifunctional modifiers, 0.4 to 1.4 parts of nucleating agents, 3 to 5 parts of plasticizers and 0.3 to 0.8 part of bio-based chain extenders. 0.3-10 parts of a composite heat stabilizer and 4-15 parts of an antibacterial agent; the modified polylactic acid is prepared from the following components in parts by mass: 35 to 50 parts of polylactic acid, 5 to 25 parts of polypropylene carbonate, 1 to 6 parts of micromolecular compatilizer and 0.2 to 2 parts of initiator. And the modified polylactic acid improves the biodegradation rate. The heat-resistant biodegradable film-making material disclosed by the invention has excellent temperature resistance, degradability, mechanical strength and toughness, can be widely applied to various industries, and has good application and market prospects. The invention also discloses a production process of the heat-resistant biodegradable film-making material.

The invention discloses a material for woven bags as well as a preparation method and application thereof, and relates to the technical field of processing of materials for woven bags. The woven bag material comprises a film covering material and a weaving wire material; wherein the film covering material comprises degradable resin B and a compatilizer; the degradable resin B comprises poly (butylene adipate-co-terephthalate) and polypropylene carbonate; the woven bag material prepared from the material for weaving the silk and the material for coating is low in cost, low in rigidity and good in toughness; the mechanical strength of the coated material for the woven bag is enhanced, the water resistance is improved, the service life of the material for the woven bag is prolonged, the degradation rate of the material in the using process is delayed, and closed loop of carbon circulation is effectively achieved. The preparation method of the material for the woven bag is simple to operate; the prepared material for the woven bag or the woven bag can be widely applied to the fields of agriculture, industry and logistics transportation.

The invention discloses a modified biodegradable polyester composite material based on a carbon dioxide and polypropylene carbonate copolymer as well as a preparation method and application of the modified biodegradable polyester composite material. The biodegradable polyester composite material based on the carbon dioxide polypropylene carbonate copolymer comprises modified PPC, a biodegradable polyester polymer, an inorganic mineral and / or organic starch, an antioxidant, a coupling agent, a lubricant and a chain extender. The modified poly (propylene carbonate) with a unique structure is introduced, so that the problems of poor barrier property, poor rigidity, poor transparency and the like of the traditional modified PBAT material can be solved. In addition, the product is relatively low in price, and can meet the requirements of development of agricultural mulching films in the field of biodegradable films.

A solid electrolyte, its preparation method, and a lithium-ion battery are disclosed, belonging to the field of solid electrolyte technology. This invention overcomes the shortcomings of existing PEO-based solid polymer electrolytes, such as low ionic conductivity and poor mechanical properties. The solid electrolyte of this invention comprises a crosslinked product of polyethylene glycol methyl ether acrylate and polyethylene glycol diacrylate, polypropylene carbonate, and a lithium salt; the average molecular weight of polyethylene glycol methyl ether acrylate is 300–500; the average molecular weight of polyethylene glycol diacrylate is 500–800; and the average molecular weight of the crosslinked product is 3000–6000.

The invention discloses a PPC (polypropylene carbonate) yoga mat and a preparation method thereof, and belongs to the technical field of yoga mats, the PPC yoga mat sequentially comprises a base cloth layer and a foaming layer from bottom to top; the foaming layer is prepared from the following raw materials in parts by weight: 80 to 120 parts of polypropylene carbonate polyol, 10 to 30 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of foaming agent, 8.3 to 9 parts of deodorant, 3.9 to 8 parts of calcium carbonate and 2 to 4 parts of zinc oxide. By compounding the physical adsorption type deodorant and the coupling type deodorant, the deodorant effect of the deodorant can be enhanced, and the problem that peculiar smell is desorbed and released again after adsorption of the physical adsorption type deodorant reaches saturation is solved. In addition, by controlling the foaming temperature and time, it can be ensured that foam holes are uniform, and the surface of the yoga mat is endowed with high anti-skid performance. Moreover, the antiskid lines are pressed on the surface of the foaming layer, and the microporous structure of the PPC foaming layer is combined, so that the antiskid performance of the yoga mat can be obviously improved.

The invention relates to the technical field of high polymer materials, and particularly discloses an environment-friendly high-temperature-resistant polyurethane adhesive as well as a preparation method and application thereof. The adhesive comprises a component A, a component B and a component C, the component A is prepared from polypropylene carbonate glycol, 1, 4-butanediol, an isocyanate-terminated CTBN prepolymer, a silane coupling agent and calcium sulfate whiskers; the component B is prepared from isophorone diisocyanate, trimethylolpropane monoallyl ether and aluminum acetylacetonate; the component C comprises an organic bismuth catalyst, an organic zinc catalyst and p-toluenesulfonyl isocyanate. The polyurethane adhesive prepared by the invention can simultaneously meet high temperature resistance, rapid curing property, aging resistance and environmental protection property.

The invention discloses a microwave synergistic supercritical fluid rotating bed devolatilization device and method for polypropylene carbonate, and relates to the technical field of polymer processing treatment. The device comprises a horizontal high-pressure closed kettle body, a magnetic coupling driving system, a microwave heating system and a wave-transparent rotary drum. According to the method, a multi-period variable-pressure circulating process of boosting swelling, pressure-maintaining microwave heating and rapid pressure reduction is adopted while a roller is kept to rotate continuously to prevent material adhesion. Supercritical carbon dioxide is used for plastification to reduce mass transfer resistance, microwave is used for selectively heating polar impurities to overcome desorption energy barriers, pressure difference is formed inside and outside particles through periodic pressure increasing and decreasing to promote diffusion of deep impurities, and mass transfer driving force is maintained through gas phase replacement. According to the invention, deep devolatilization of polypropylene carbonate can be realized under the low-temperature condition of 35-60 DEG C, and thermal degradation and material agglomeration are effectively avoided.

The invention relates to a method for controlling foam in a process system, particularly in fermenting broths used for bio-ethanol production. The method comprises adding a foam-control agent that contains one or more polyalkylene carbonates having a CO2 content of 1wt% - 40wt% and a weight-average molecular weight of 500Da- 100kDa. Preferred agents are polypropylene carbonates, optionally copolymerised with ethylene-oxide units in defined PO:EO ratios (99:1 to 1:10). The agent can be introduced before, at the start of, or intermittently during fermentation, at concentrations from 1ppm to 500 000ppm. The disclosed polymers provide superior defoaming performance, lower foam height, and are substantially free of 1,4-dioxane.

The invention provides a solventless hot melt adhesive for polyester-cotton blended fabric as well as a preparation method and application of the solventless hot melt adhesive. The solvent-free hot melt adhesive comprises a component A and a component B. The total mass of the component A and the component B is 100%, and the component A comprises 10-15% of poly (propylene carbonate) glycol and 42-45% of diisocyanate; the component B is prepared from 25 to 30 percent of polyethylene glycol, 10 to 14 percent of dimethylglyoxime, 0.1 to 1.5 percent of cross-linking agent and 3 to 5 percent of plasticizer. Dynamic oxime urethane bonds are introduced into cross-linked polyurethane, the bonding strength and weather resistance of a hot melt adhesive film are improved, in the printing and pressing process, under the high-humidity condition, the hot melt adhesive film can further react with water vapor in air, the cross-linking degree is improved, and the strength of printed fabric is further improved.

This invention provides a catalyst for the synthesis of polypropylene carbonate and its application. The catalyst is a zinc-manganese dicarboxylic acid bimetallic catalyst, wherein the molar ratio of zinc to manganese is in the range of (10:1)–(1:1), preferably 5:1, and the particle size of the catalyst is 10–50 nm. The beneficial effects of this invention are: the zinc-manganese dicarboxylic acid bimetallic catalyst of this invention has a simple preparation step, mild preparation conditions, low cost, and is easy to industrialize. When used to catalyze the production of polypropylene carbonate in a polymerization reactor, the catalyst exhibits high activity, resulting in a polymer with a high molecular weight and low ether content.

The application discloses a production method of high-performance recyclable BOPP film, and the high-performance recyclable BOPP film comprises an outer layer, a middle layer and an inner layer; the outer layer is composed of homopolymer polypropylene, polylactic acid, polyhydroxybutyrate, polypropylene carbonate, polystyrene-acrylonitrile copolymer, an antioxidant, an ultraviolet absorber and a slip agent; the middle layer is composed of homopolymer polypropylene, thermoplastic starch, polycaprolactone, polyethylene terephthalate, maleic anhydride grafted polypropylene, a fiber reinforcing agent and methyl methacrylate-butadiene-styrene copolymer; and the inner layer is composed of random copolymer polypropylene, polybutylene succinate, polyvinyl alcohol, PA6, an antistatic agent and an antibacterial agent. The BOPP film prepared by the method has good performance, is environment-friendly and recyclable.

The invention belongs to the technical field of poly (propylene carbonate) production, and relates to a poly (propylene carbonate) granule processing device and method.The poly (propylene carbonate) granule processing device comprises a plurality of anti-sticking agent coating units running at intervals, a high-speed mixer, a first inlet, a second inlet and a third inlet; an inlet of the first anti-sticking agent regulating valve is connected with the first anti-sticking agent storage tank, and an outlet of the first anti-sticking agent regulating valve is connected with the first inlet; an inlet of the second anti-sticking agent discharging valve is connected with the second anti-sticking agent bin, and an outlet of the second anti-sticking agent discharging valve is connected with the second inlet; an inlet of the discharging valve is connected with the feeding rotary pump, the PPC particles are supplied to the discharging valve, and an outlet of the discharging valve is connected with the third inlet; and after the PPC granules and the No.1 anti-sticking agent are added into the high-speed mixer for a specific time, the No.2 anti-sticking agent is added again. The anti-sticking agent has the advantage that a uniform and stable anti-sticking effect can be formed outside the PPC granules by adopting layered synergistic coating.

The invention provides a water / biological dual-degradable composite material master batch and a preparation method thereof, and a plastic product and a treatment method thereof, and belongs to the technical field of composite materials. The water / biological dual-degradation composite material master batch comprises a water / biological dual-degradation resin mixture, a filler, a mixture of hydroxy propyl cellulose and tributyl citrate, low molecular weight polyethylene, a plasticizer, a heat stabilizer, stearic acid, a reinforcing agent, a flame retardant, polyethylene glycol and a coupling agent. The water / biological dual-degradable resin mixture comprises a poly (butylene succinate) / adipic acid copolymer, polycaprolactone, polyoxyethylene and an antioxidant, or comprises a poly (butylene succinate) / adipic acid copolymer, polylactic acid polypropylene carbonate, polyoxyethylene and an antioxidant. The water / biological dual-degradation composite material master batch has water solubility and biodegradability, and is low in melting point, and a plastic product prepared from the water / biological dual-degradation composite material master batch is convenient to realize simple and low-cost treatment or recycling after being used.

The invention relates to the field of ABS recycled material modification, in particular to a closed-loop recycled ABS plastic toy as well as a preparation method and a closed-loop recycling process thereof. The ABS plastic toy material is prepared from the following raw materials in percentage by weight: 40-83% of a recycled ABS plastic toy material, 10-35% of ABS, 5.8-16% of a modified material and the balance of a processing aid, the modified material is prepared from the following raw materials in percentage by weight: 5 to 10 percent of polylactic acid-glycolic acid copolymer-carboxylic acid, 3 to 8 percent of carboxyl-terminated polycaprolactone, 10 to 25 percent of maleic anhydride modified polymer and the balance of filler; the maleic anhydride modified polymer is PU containing maleic anhydride and / or polypropylene carbonate terminated by maleic anhydride. The modifier is prepared from polylactic acid-glycolic acid copolymer-carboxylic acid, carboxyl-terminated polycaprolactone, maleic anhydride modified polymer and filler, so that the recoverability, printability and mechanical properties of the ABS material can be further improved.