81 results about "CITRATE ESTER" patented technology

The present invention relates to a plasticizer composition, including a lower alkyl-based citrate and a higher alkyl-based citrate at the same time, as citrate, wherein the ratio of a hybrid type to a non-hybrid type and the ratio of the lower alkyl groups to the higher alkyl groups are controlled so that effects are achieved. When applying the plasticizer composition to a resin, stress resistance and mechanical properties can be maintained at an equal or higher level, the migration and volatile loss properties and the plasticization efficiency can be balanced, and the light resistance and heat resistance can be remarkably improved.

The invention relates to the technical field of flour waterproof packaging bags, in particular to a wear-resistant waterproof packaging bag for flour processing and production. An outer layer material of the packaging bag comprises the following raw materials in parts by mass: 75-85 parts of polyamide, 15-25 parts of a thermoplastic elastomer, 2-5 parts of nano calcium carbonate, 0.2-0.25 part of an antioxidant, 1-3 parts of a nucleating agent and 5-10 parts of a citrate plasticizer; the middle layer material of the packaging bag comprises the following raw materials in parts by mass: 55-65 parts of a polyamide monomer, 35-45 parts of a polyether monomer and 0.5-1.5 parts of a catalyst; the inner layer of the packaging bag is made of 100 parts of food-grade low-density polyethylene. According to the flour packaging bag, by optimizing the material formula and the preparation technology, balance of flexibility and rigidity is achieved, abrasion resistance and water resistance are remarkably enhanced, aging resistance stability is improved, accurate technology guarantee performance is achieved, efficient bonding and antistatic design are achieved, flour quality and transportation safety are guaranteed, and potential risks are reduced.

The present invention relates to a plasticizer composition including a lower alkyl-based citrate and a higher alkyl-based citrate simultaneously as citrates, wherein effects are achieved through controlling the ratio of hybrid and nonhybrid types, and the ratio of lower alkyl and higher alkyl, and if the plasticizer composition is applied in a resin, stress resistance and mechanical properties may be maintained to the equal or better levels, balance between migration and loss properties, and plasticization efficiency may be achieved, and light resistance and heat resistance may be markedly improved.

The invention relates to the technical field of environment-friendly materials, and discloses an environment-friendly plastic bag which is of a three-layer composite structure composed of the following raw materials in parts by weight: an outer layer, 60-80 parts of polylactic acid, 40-60 parts of poly (adipic acid) or butylene terephthalate with a thickness ratio of 40%, and a middle layer, 75-90 parts of modified cassava starch, 25-35 parts of polyvinyl alcohol and 3-8 parts of a citrate cross-linking agent with a thickness ratio of 30%. The inner layer comprises 80-95 parts of polyhydroxybutyrate valerate and 15-25 parts of surface treatment calcium carbonate, the thickness ratio of the inner layer is 30%, the three layers are integrally formed through a co-extrusion film blowing process, and a micron-sized groove array is arranged on the surface of the outer layer. The outer layer adopts the blend of polylactic acid and dibutyl phthalate, the brittleness of polylactic acid is made up by utilizing the flexibility of dibutyl phthalate, and meanwhile, the use amount of pure polylactic acid is reduced, so that the cost is reduced by 40% compared with that of a pure polylactic acid bag; and 15 wt% of stearic acid is added into the inner layer polyhydroxybutyrate valerate to treat calcium carbonate, so that the performance is ensured, and the cost is controlled at the same time.

The invention provides a polylactic acid-polycitrate composite microsphere as well as a preparation method and application thereof. The polylactic acid-polycitrate composite microsphere is prepared from the following raw materials: a polycitrate prepolymer and poly-L-lactic acid. According to the polylactic acid-polycitrate composite microsphere provided by the invention, the polycitrate prepolymer is introduced, so that mechanical-degradation double-phase matching of a material can be realized, the hydrophobicity of the poly-L-lactic acid can be reduced, the hydrophilic-hydrophobic balance of the surface of the composite microsphere is realized, the affinity and biological activity of cells are improved, and the biocompatibility of the composite microsphere is improved. And the poly citrate prepolymer and the poly-L-lactic acid are matched for use, so that the whole polylactic acid-poly citrate composite microsphere has bionic viscoelasticity, thereby promoting the spreading of fibroblasts and the secretion of more integrin and collagen monomers, facilitating the behavior regulation and control of cells, and mildly stimulating the regeneration of collagen.

Provided is a cellulose ester composition that has good flowability, and a molded product obtained therefrom that is a molded product in which water droplet marks are inhibited from occurring. A cellulose ester composition contains: (A) 100 parts by mass of a cellulose ester; (B) 19 to 45 parts by mass of a citric acid ester compound having a solubility in water of 2 g / 100 ml or less; and (C) 1 to 9 parts by mass of an adipic acid ester compound.

The present invention provides a plasticizer composition and a resin composition comprising the same. The plasticizer composition according to the present invention comprises a cyclohexane-1, 2-diester-based substance and a citrate-based substance, and the plasticizer composition is environmentally friendly and has high stability and excellent basic properties.

The invention discloses a self-degradable biomass composite fiber and a preparation method thereof, and relates to the technical field of high polymer material preparation, and the self-degradable biomass composite fiber comprises the following components by weight: 40-60 parts of plant fiber composite polylactic acid; 20 to 30 parts of polyhydroxybutyrate; 10 to 20 parts of nano cellulose; 5 to 10 parts of acetylated lignin; 3-5 parts of a citrate plasticizer; 2 to 4 parts of sodium alginate; the components are all natural derived and biological fermentation products, and the total bio-based carbon content is greater than 85%. Through the component design of the biomass composite fiber, the function of precise and controllable degradation performance is realized, multi-stage degradation mechanisms are cooperated, the proportion of polyhydroxybutyrate to nanocellulose is adjusted, the degradation period is flexibly regulated and controlled, different scene requirements are met, the application range is expanded, low-temperature spinning is matched, the unification of high performance and low energy consumption is realized, and the preparation method is suitable for industrial production. And industrialization landing is promoted.

The application discloses an environmentally-friendly soft type yoga mat special silk-screen printing ink and a preparation method thereof, and belongs to the technical field of silk-screen printing inks. The ink comprises the following components in parts by weight: 30-50 parts of main body resin, 5-15 parts of environmentally-friendly pigment, 25-45 parts of environmentally-friendly composite solvent, 1-5 parts of adhesion promoter, 0.5-2 parts of rheological additive, 0.5-2 parts of scratch-resistant additive, and 2-8 parts of environmentally-friendly non-ortho phenyl plasticizer. The ink is extremely environmentally-friendly, meets international export standards, and is free of phthalate plasticizers, benzophenone solvents and heavy metal pigments in the whole process. Instead, the ink uses citric acid ester non-ortho phenyl plasticizers, benzene-free and ketone-free composite solvents and heavy metal-free organic pigments. The VOC content is far lower than the national limit value, the irritating odor is eliminated, and phthalate controlled substances are not detected. The ink meets the EU REACH regulation appendix XVII 51 / 52 and the EN71-3 toy safety standard, and completely solves the problem of limited export of traditional inks.

This invention discloses a method for preparing a polycitric acid-based adhesive composite coating. The method includes the following steps: Step 1: After melting citric acid, polyethylene glycol and 1,8-octanediol are added, acrylic acid is added dropwise and stirred, and the mixture is dissolved, purified by dialysis, and then freeze-dried under vacuum to obtain a double-bonded polycitric acid ester prepolymer; Step 2: Polylysine is mixed with the double-bonded polycitric acid ester prepolymer to obtain a polycitric acid ester composite solution; Step 3: The polycitric acid ester composite solution is dropwise added to the surface of a substrate and thermosetting to obtain a polycitric acid-based adhesive composite coating. This invention also discloses the applications of the polycitric acid-based adhesive composite coating. This invention, by adding acrylic acid to the polycitric acid prepolymer system to generate a double-bonded polycitric acid ester prepolymer, and by adding polylysine to form a polycitric acid ester composite solution, forms a polycitric acid-based adhesive composite coating with strong adhesion after thermosetting, which is applicable to the field of biodegradable biomedical materials technology.

The invention discloses a moisturizing and repairing spray raw material capable of improving a spray effect and a preparation method of the moisturizing and repairing spray raw material. The moisturizing and repairing spray raw material is prepared from the following raw materials: glycerol tri (ethylhexoic acid) ester, glyceryl stearate citrate, stearyl alcohol polyether-21, cetyl alcohol palmitate, allantoin, sodium hyaluronate, panthenol, PCA sodium and water. According to the specific formula, the facial cleanser is prepared from the following raw materials: 58 to 68 percent of glycerol tri (ethylhexoic acid) ester, 13 to 23 percent of glyceryl stearate citrate, 2 to 12 percent of stearyl alcohol polyether-21, 2 to 12 percent of cetyl alcohol palmitate, 0.1 to 0.5 percent of allantoin, 0.01 to 0.2 percent of sodium hyaluronate, 0.01 to 1 percent of panthenol, 0.1 to 1.5 percent of sodium PCA and 1 to 4 percent of water. The light synthetic ester is used as a main body, the water-soluble moisturizing and repairing component is wrapped in the oil-based emulsified particles, the balance of a water phase system of a basic formula is not changed after the water-based emulsified particles are added for spraying, the viscosity fluctuation in winter caused by excessive water phase is avoided, meanwhile, the oil-based particles can carry functional components to be attached to the skin surface and slowly released, and the moisturizing and repairing effect is good. The long-term effect of moisturizing and repairing is improved.

(Solution) Provides a gel-like composition comprising a vinyl chloride-based resin and a plasticizer, which exhibits a gel state at 20°C. The plasticizer is at least one selected from the group consisting of isophthalic acid esters, terephthalic acid esters, fumaric acid esters, acetylicinoleic acid esters, citric acid esters, acetyl citrate esters, adipic acid esters selected from di-2-ethylhexyl adipic acid (DOA) and diisononyl adipic acid (DINA), maleic acid esters and their derivatives, and salts thereof. Provides an electronic device comprising a first electrode and a second electrode, and a polymer layer disposed between the first electrode and the second electrode and comprising the gel-like composition.

The invention relates to the technical field of polymer foam materials, in particular to an environment-friendly low-density polyethylene / polypropylene blended foam material and a preparation method thereof. The material is prepared from 45-55 parts of polypropylene, 22-28 parts of low-density polyethylene, 8-12 parts of polylactic acid, 4-6 parts of a starch-based foaming agent, 1-3 parts of citrate, 0.8-1.2 parts of zinc stearate and 0.2-0.3 part of an antioxidant 1010 through raw material pretreatment, melt blending granulation by a double-screw extruder and gradient foaming by a single-screw extruder. Through innovative formula design and process control, excellent low density, high percentage of close area and biodegradability are realized, and the material can be widely applied to the fields of packaging buffer materials, building heat insulation layers, automotive interiors and the like with high requirements on environmental protection and light weight.

The invention belongs to the technical field of concrete, and particularly relates to an early-strength delayed-coagulation concrete admixture and a preparation method thereof. The early-strength delayed-coagulation concrete admixture is prepared from an unsaturated acid monomer, an unsaturated polyether macromonomer, an unsaturated citrate monomer, an unsaturated diethylene glycol monomer, a reducing agent, an initiator, a chain transfer agent, a solubilizer, deionized water and nano calcium carbonate. Wherein the unsaturated citrate monomer is triallyl citrate, and the unsaturated diethylene glycol monomer is diethylene glycol monovinyl ether. According to the invention, the workability retention time of the fresh concrete is effectively prolonged, and normal development of early and later strength of the concrete can be guaranteed.

The application belongs to the technical field of high polymer materials, and provides an insulating paint with high partial discharge inception voltage, a preparation method and application thereof. At least one of long-chain alkyl citrate foaming agent, long-chain alkyl terephthalate foaming agent and long-chain alkyl dibasic fatty acid ester foaming agent is added into a base resin as a foaming agent, and the obtained insulating paint can obtain a polymer insulating layer with a bubble layer after coating and curing, wherein a large number of hole structures are contained, and the PDIV is high. The foaming agent used in the application has high safety, the preparation process of the polymer insulating layer with bubbles is simple and easy to operate, and the prepared paint film will not produce defects such as paint tumor or large bubbles.

The invention relates to the technical field of ink manufacturing, in particular to water-based gravure ink and a preparation method thereof. The ink is prepared from the following components according to solid content: epoxy-polyurethane-acrylic acid ternary hybrid emulsion, surface coating type high-color-concentration water-based color paste, citrate modified nano cellulose, an isosorbide diester coalescing agent, a polyoxyethylene-polyoxypropylene block wetting dispersant, a de-foaming agent, a preservative and de-ionized water. The ink has the advantages of low VOC (volatile organic compound), quick drying, excellent adhesive force and alcohol wiping resistance, is suitable for high-speed gravure of a 120-200L / cm anilox roller, and has excellent storage stability. The composition is green, environment-friendly and excellent in comprehensive performance.

The invention belongs to the technical field of flame-retardant materials, and particularly relates to a high-temperature-resistant flame-retardant material and a preparation method thereof. The high-temperature-resistant flame-retardant material is prepared from the following components in parts by mass: 50 to 60 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of ethylene propylene diene monomer, 2 to 5 parts of maleic anhydride grafted ethylene-vinyl acetate, 20 to 25 parts of flame retardant, 1 to 2 parts of graphene, 5 to 8 parts of citrate plasticizer, 0.5 to 1 part of calcium stearate, 1 to 2 parts of paraffin, 0.5 to 1 part of antioxidant and 1 to 3 parts of sensitizing cross-linking agent. The flame retardant is prepared by mixing phosphorus modified nano cellulose, modified zinc borate and melamine; the high-temperature-resistant flame-retardant material prepared by the invention has a good flame-retardant effect, and has relatively good tensile strength and elongation at break, good processability and the like.

The invention discloses an environment-friendly root-puncture-resistant PVC (polyvinyl chloride) waterproof roll and a preparation method thereof. The environment-friendly root-puncture-resistant PVC waterproof roll comprises the following components in parts by weight: 50-70 parts of PVC resin; 15-30 parts of an environment-friendly plasticizer; 5-12 parts of a root puncture resistant agent; 2-5 parts of a calcium-zinc composite stabilizer; 10 to 20 parts of nano calcium carbonate; 3-8 parts of a flame retardant; 0.5 to 2 parts of an antioxidant; 0.3 to 1.5 parts of an ultraviolet light absorber; and 1-3 parts of a coloring agent. The environment-friendly plasticizer is adopted, the epoxidized soybean oil and the citrate plasticizer are compounded according to a specific proportion, the content of phthalate is remarkably reduced (smaller than or equal to 0.1%), and therefore potential threats to the environment and human health are reduced; the chemical root-resistant agent is selected from effective components such as fipronil and triazolone, the physical root-resistant material is a copper foil layer with moderate thickness or a polyester fiber reinforcement layer with enough gram weight, and the composite system can play double roles of chemical root resistance and physical root resistance at the same time, so that plant root systems are effectively prevented from penetrating through the waterproof layer.

The application provides a slow-release tea preservative and a preparation method thereof, and belongs to the technical field of preservatives.The preparation method comprises the following steps: S1, dissolving a vitamin E derivative in oil, stirring and uniformly mixing to prepare an oil phase; S2, dissolving a hydrophilic emulsifier in water, adding sodium alginate, stirring and uniformly mixing to prepare an aqueous phase; S3, adding the oil phase into the aqueous phase, high-speed emulsifying to form an emulsion, heating to a reaction temperature, dropwise adding a calcium chloride solution, cooling and solidifying, filtering, and drying to obtain the slow-release tea preservative.The prepared VE citric acid ester derivative can significantly improve the antioxidant performance of VE, obviously improve the stability of VE to acid and heat, is not prone to oxidation and deterioration, has good sterilization, antibiosis, bacteriostasis and anti-inflammatory effects, and the prepared VE derivative can be slowly released due to the slow-release microcapsule structure, thereby achieving long-acting preservation.

This invention discloses a universal method and composition for solving the pilling problem in cold-formulated cosmetics. Adding an effective amount of glyceryl oleate, citrate / caprylic / capric triglyceride to a cosmetic composition containing a pilling-prone cold-formulated emulsifier can significantly reduce or eliminate pilling. This substance has been discovered for the first time to have a novel anti-pilling application, effective against pilling caused by the emulsifier's own characteristics, high dosage, electrolyte interference, or the addition of large molecules, and is universally applicable to different types of cold-formulated emulsifier systems. This invention is particularly suitable for systems using electrolyte-rich natural plant extracts as the aqueous phase, fundamentally solving the pilling problem and providing a reliable solution for preparing high-feel, all-natural cold-formulated cosmetics.

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 present invention relates to the technical field related to polymer materials, and discloses a flexible polymer antifouling tablecloth and a preparation method thereof. The tablecloth comprises the following components: 40-55 parts of a modified polyurethane resin, 0.5-2 parts of carboxylated carbon nanotubes, 5-10 parts of surface-modified nano-silicon dioxide, 8-12 parts of a citrate plasticizer, 2-5 parts of nano-silver particles, 3-6 parts of a microencapsulated polyurethane self-repairing agent, 0.5-1.5 parts of a benzotriazole ultraviolet absorber, and 0.1-0.3 parts of azobisisobutyronitrile. The synergistic ratio of the carboxylated carbon nanotubes and the nano-silver improves the antibacterial rate while maintaining a high tensile strength. The combination of the polyurea microcapsules and the surface-modified nano-silicon dioxide enables the material to maintain a high self-repairing rate while not affecting the surface hydrophobicity.

The present invention relates to a cosmetic formulation comprising glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) and acetylhydroxyproline (INCI: Acetyl Hydroxyproline), and to the methods and uses with acetylhydroxyproline (INCI: Acetyl Hydroxyproline) for reducing the sand adhesion of cosmetic formulations.

The present disclosure provides a plastisol composition comprising from about 1% to about 49% by weight of at least one polyhydroxyalkanoate. The plastisol composition also includes from about 51% to about 99% by weight of at least one plasticizer selected from the group consisting of epoxidized vegetable oils, citrate esters, triglycerides, and mixtures thereof. A screen printing ink comprising the plastisol is also disclosed.

The present invention relates to a method for the supercritical fluid extraction of at least one plasticizer, in particular of phthalate and / or citrate and / or trimellitate type, contained in a solid polymer material, according to which fragments of said material are brought into contact, at least once, with said supercritical fluid for a given period of time, then said fluid is separated from said extracted plasticizer contained therein. Characteristically, said fragments are flakes that have a length greater than about 500 µm, in particular greater than or equal to about 700 µm and more particularly greater than about 710 µm and less than about 2000 µm.

The present application belongs to the technical field of flocculants for dredged sand, and discloses a green environmental protection additive for preparing high-quality dredged sand. The raw materials of the green environmental protection additive disclosed by the present application include: flocculation components and film-forming components; the green environmental protection additive is applied to the dredged sand at a mass ratio of 1:500-600. The green environmental protection additive includes the following components in parts by mass: 10-50 parts of anionic polyacrylamide, 50-100 parts of polyaluminum chloride, 8-15 parts of epoxy soybean oil, 2-5 parts of citrate, 1-3 parts of sodium bicarbonate, and 5-10 parts of natural latex. The present application aims to provide a green environmental protection additive for preparing high-quality dredged sand, which can improve the flocculation effect and obtain good mechanical strength when applied to concrete, in view of the problems of small cohesion, low structural strength and easy damage under shearing of flocculation groups in the process of using common flocculants at present.

The invention discloses a preparation method and application of anhydrous magnesium carbonate based on citrate multistage morphology regulation and control, and belongs to the technical field of inorganic material preparation and polymer composite materials. Citric acid esters are adopted as a regulating agent, the characteristic that the citric acid esters are gradually hydrolyzed under hydrothermal and alkaline conditions is utilized, carboxyl coordination groups with complexing capacity are released step by step, accurate regulation and control are implemented in the nucleation stage, the growth stage and the crystal face selection exposure stage of the crystal, and the crystal is obtained. Therefore, the anhydrous magnesium carbonate powder which is uniform in particle size, high in crystal form purity, good in dispersity and controllable in morphology is obtained. The anhydrous magnesium carbonate with abundant morphology prepared by the invention is used as a filler to be added into a high polymer material, and by releasing CO2 to dilute combustible gas, forming a compact MgO layer and other flame-retardant mechanisms, excellent flame-retardant performance can be realized under the condition of lower addition amount, so that the anhydrous magnesium carbonate is a novel environment-friendly flame-retardant material with great potential.

The invention relates to the technical field of extraction of citrate plasticizers in polymers, and discloses a ternary extraction liquid and application thereof and a method for extracting citrate from a polymer, the ternary extraction liquid comprises halogenated hydrocarbon, C1-C3 alcohol and amide shown in the formula (1); wherein R1 is H or alkyl of C1-C3, R2 is alkyl of C1-C3, and R3 is alkyl of C1-C3. The ternary extraction liquid provided by the invention is used for extracting citrate in a polymer and has a relatively high extraction rate.

The present disclosure is directed to certain polyether esters of di- and tri-carboxylic acid, and methods of making and using the same, such as maleate, fumarate, itaconate, citraconate, mesaconate, citrate, and tartrate, esters of polycitronellol and other polyterpenols. Such products can be prepared from renewable resources and the functional groups can include a wide variety of unsubstituted, substituted, saturated, unsaturated, cyclic, and acyclic molecular structures.

This invention belongs to the field of packaging materials technology, and particularly relates to a biodegradable composite film-paper material and its preparation method. The biodegradable composite film-paper material comprises a polymer layer and a paper layer. The polymer layer, by weight, comprises the following components: 70-80 parts polylactic acid, 20-30 parts polycaprolactone, 1-3 parts synergist, 8-10 parts citrate starch, 0.3-1.0 parts lubricant, and 0.2-0.5 parts antioxidant. Experimental results show that the biodegradable composite film-paper material prepared by this invention has an antibacterial grade of 0, a tensile strength of 30-34 MPa, and an elongation at break of 415-450%.