Abrégé

22-supplying reagent is added or not added into the two-phase solvent system. The synthesis process and the separation and purification process are simple, the product purity is relatively high, the carbonylation reaction rate is high, the raw material cost is reduced, and the green chemical development concept is satisfied.

Classes IPC  ?

• C07D 307/68 - Atomes de carbone comportant trois liaisons à des hétéro-atomes avec au plus une liaison à un halogène

Abrégé

The present invention belongs to the field of furyl biomass chemicals and materials. Disclosed is a method for producing high-purity 2,5-furandimethanol by catalyzing furfuryl alcohol by using an aprotic acid catalyst. The method comprises: adding a modified zeolite catalyst, furfuryl alcohol and a hydroxymethylation reagent into an aprotic solvent, introducing nitrogen thereto to perform a reaction, and after the reaction is finished, filtering same, separating a solid phase from a liquid phase, subjecting the liquid phase to rotary evaporation to recover the solvent, then continuously heating same, and collecting a solid, namely, high-purity 2,5-furandimethanol, wherein the modified zeolite catalyst is obtained by subjecting β-zeolite to a dealumination treatment, and then introducing a transition metal element as a Lewis acid active site into the zeolite by means of a solid-solid ion exchange method. The modified zeolite of the present invention is used as the aprotic acid catalyst, and in contrast to the problems of poor target product selectivity and separation caused by related side reactions of a protonic acid catalyst, can achieve high selectivity of the target product, such that the synthesis process and separation and purification process are simple, the raw material cost is low, and the green chemical development concept is satisfied.

Classes IPC  ?

• C07D 307/42 - Atomes d'oxygène liés par des liaisons simples
• B01J 29/76 - Métaux du groupe du fer ou cuivre
• B01J 29/78 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes contenant de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium

Abrégé

Disclosed in the present invention are a method for preparing a lignin adhesive and a product thereof. The method comprises: treating a wood fiber raw material by using a mixed solution; after the treatment is finished, adding an organic solvent, stirring and carrying out solid-liquid separation; carrying out rotary evaporation on the obtained liquid to remove the organic solvent, and water-washing and drying a product to obtain the lignin adhesive. The present application can separate lignin in the wood fiber raw material to a large amount at a relatively low temperature, meanwhile, during the lignin separation process, the lignin undergoes a cross-linking reaction with a solvent in the system so as to form a lignin adhesive, namely, lignin separation and lignin adhesive forming are synchronously carried out. In addition, the method is simple, has low cost and high yield, and can achieve large-scale preparation of the lignin adhesive and efficient lignin separation.

Classes IPC  ?

• C09J 197/00 - Adhésifs à base de matériaux contenant de la lignine
• C09J 197/02 - Matériau lignocellulosique, p. ex. bois, paille ou bagasse
• C08H 7/00 - LignineLignine modifiéeProduits dérivés à haut poids moléculaire

Abrégé

Disclosed in the present invention are a natural plant fiber/water-borne epoxy resin composite material and a manufacturing method therefor. The main components of the composite material are natural plant fibers, a water-borne epoxy resin and a curing agent. The method comprises: mixing natural plant fibers, a water-borne epoxy resin and a curing agent until uniform, subjecting same to drying, dehydration and pre-curing to prepare a prepreg, and then subjecting same to hot press molding to obtain a composite material. In the present invention, by means of the porosity and hydrophilicity of the natural plant fibers, the plant fibers and the water-borne epoxy resin are compounded, and the manufactured plant fiber/epoxy resin composite material has good mechanical properties. The present invention effectively solves the problems of poor interfacial compatibility and low mechanical properties of a composite material when plant fibers are directly compounded with an epoxy resin; the manufacturing method is simple and convenient; and no organic solvent or volatile organic compound (VOC) is released during the manufacturing and usage processes, and thus the present invention is green and environmentally friendly.

Classes IPC  ?

• C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
• C08L 97/02 - Matériau lignocellulosique, p. ex. bois, paille ou bagasse

Abrégé

A lignin bacteriostatic agent and a preparation method therefor and an application thereof. 1 g of lignin is suspended in 10-50 mL of a molten salt hydrate according to a ratio; 50-500 μL of an inorganic acid and 0.5 g of phenol are added; a stirring reaction is performed at 90-150°C for 0.5-5 h; after the reaction liquid is cooled, washing with water and drying are performed to obtain depolymerized and phenolated lignin. The bacteriostatic research shows that the bacteriostatic ability of the modified lignin is significantly enhanced after the lignin is depolymerized, phenolated, and modified, and the research shows that the inhibition rates of the modified lignin on Escherichia coli (ATCC 25922) and staphylococcus aureus (ATCC 6538) are respectively 98.89% and 99.99%. In this way, the lignin bacteriostatic agent can replace antibiotics and has huge application potential in the aspect of feed additives.

Classes IPC  ?

• C07G 1/00 - Dérivés de lignine à bas poids moléculaire
• C08H 7/00 - LignineLignine modifiéeProduits dérivés à haut poids moléculaire
• A01N 61/00 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des substances de composition non connue ou indéterminée, p. ex. des substances caractérisées uniquement par leur mode d'action

Abrégé

Disclosed are a photocurable resin based on epoxidized vegetable oil and gallic acid, and a preparation method therefor and an application thereof. First, gallic acid and an acrylic anhydride compound are reacted to obtain a gallic acid triacrylate/acrylic compound mixed intermediate; an epoxy ring-opening reaction is then carried out using epoxidized vegetable oil and the obtained mixed intermediate to obtain a novel bio-based epoxy acrylate prepolymer; finally, a diluent monomer, a photoinitiator, a polymerization inhibitor, etc. are added and dispersed uniformly to obtain a bio-based photocurable resin. The obtained resin has advantages including low viscosity and high curing speed, and has excellent mechanical and thermodynamic properties after curing. Therefore, it can be used as a base resin for applications such as photocurable 3D printing materials, coatings, and inks. The present method is simple and environmentally friendly, and most of the raw materials come from renewable resources, so that the method has great significance for promoting sustainable development of photocurable materials.

Classes IPC  ?

• C08F 122/20 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle
• C08F 2/48 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible
• C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
• C09D 11/107 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir d'acides non saturés ou de leurs dérivés
• C09D 4/02 - Monomères acryliques
• C07C 67/26 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou de leurs dérivés avec une liaison éther carbone-oxygène, p. ex. acétal, tétrahydrofuranne avec un cycle oxirane
• C07C 69/86 - Esters d'acides carboxyliques dont un groupe carboxyle estérifié est lié à un atome de carbone d'un cycle aromatique à six chaînons d'acides hydroxycarboxyliques monocycliques dont les groupes hydroxyle et les groupes carboxyle sont liés à des atomes de carbone d'un cycle aromatique à six chaînons à groupes hydroxyle estérifiés
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive

Abrégé

A method for preparing a biomass-based conductive hydrogel by 3D printing is provided. Firstly, a cellulose-based macromonomer, a rosin-based monomer, an acrylic acid monomer and an initiator are mixed in a certain proportion, stirred, and dissolved at 25-70° C. Then, diisocyanate in an amount of 5-10 wt % of a total mass of the monomers is added to the mixed solution and mixed uniformly to prepare a 3D printing photosensitive resin solution. An SLA light-curing 3D printer is used to print a hydrogel precursor 1 with a complex shape. Next, the hydrogel precursor 1 is heated to obtain a hydrogel precursor 2 with a dual-curing network. Finally, the obtained hydrogel precursor 2 is swelled in a 1-15 wt % alkaline solution at 5-60° C. for 0.1-10 hours to obtain the biomass-based conductive hydrogel.

Classes IPC  ?

• C08F 251/02 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polysaccharides ou leurs dérivés sur la cellulose ou ses dérivés
• B33Y 10/00 - Procédés de fabrication additive
• B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
• B29C 64/30 - Opérations ou équipements auxiliaires
• B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
• B33Y 70/10 - Composites de différents types de matériaux, p. ex. mélanges de céramiques et de polymères ou mélanges de métaux et de biomatériaux
• C08G 18/63 - Polymères séquencés ou greffés obtenus par polymérisation de composés contenant des doubles liaisons carbone-carbone sur des polymères
• C08J 3/075 - Gels macromoléculaires

Abrégé

The invention proposes a method of separating hemicellulose through efficient pretreatment of fibrous biomass materials. Fibrous biomass materials are first pretreated by the slurry method: the fibrous biomass materials are milled through ball mills and sieved to obtain fibrous biomass material powder, and the powder is mixed with water at room temperature to obtain slurry premixed solution of the fibrous biomass material powder. Through regulation and control of the reaction temperature, the time and the water amount, efficient hydrothermal removal of hemicellulose from the fibrous biomass material powder is realized. After the mixed solution is filtered, the filtrate is subject to gradient sedimentation to separate hemicellulose with low dispersity, and the sediment is then dried before storage. After the filter residue is mixed with polar aprotic solvent and water, and heated and stirred in a pressurized reactor, high-purity cellulose is obtained through filtering and separation.

Classes IPC  ?

• C08B 37/00 - Préparation des polysaccharides non prévus dans les groupes Leurs dérivés

Abrégé

Disclosed is a method for preparing a biomass-based conductive hydrogel by 3D printing. Firstly, a cellulose-based macromonomer, a rosin-based monomer, an acrylic acid monomer, and an initiator are mixed in a certain proportion, stirred, and dissolved at 25-70°C. Then, diisocyanate in an amount of 5-10 wt% of a total mass of the monomers is added to the mixed solution and mixed uniformly to prepare a 3D printing photosensitive resin solution. An SLA light-curing 3D printer is used to print a hydrogel precursor 1 with a complex shape. Next, the hydrogel precursor 1 is heated to obtain a hydrogel precursor 2 with a dual-curing network. Finally, the obtained hydrogel precursor 2 is swelled in a 1-15 wt% alkaline solution at 5-60°C for 0.1-10 hours to obtain the biomass-based conductive hydrogel. The invention can be used to prepare a biomass-based hydrogel with a complex shape, excellent electrical conductivity, and high mechanical strength. The invention can further broaden the application fields of biomass resources.

Classes IPC  ?

• C08J 3/075 - Gels macromoléculaires
• C08G 18/63 - Polymères séquencés ou greffés obtenus par polymérisation de composés contenant des doubles liaisons carbone-carbone sur des polymères
• C08F 251/02 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polysaccharides ou leurs dérivés sur la cellulose ou ses dérivés
• C08F 220/20 - Esters des alcools polyhydriques ou des phénols polyhydriques
• C08L 75/04 - Polyuréthanes

Abrégé

The high-efficiency pretreatment separation of hemicellulose from a fiber-based biomass raw material and a comprehensive utilization method therefor. Using a fiber-based biomass raw material which is a type of forest biomass resource as a raw material, the fiber-based biomass raw material is first subjected to a slurry method pretreatment: the fiber-based biomass raw material is ground by a ball mill and sieved to obtain fiber-based biomass raw material powder of a certain mesh, and the powder is mixed with water at a room temperature according to a ratio to obtain a fiber-based biomass raw material powder slurry premixed liquid; by means of the regulation and control of the reaction temperature, time and water quantity, hemicellulose is hydrothermally and highly efficiently removed from the fiber-based biomass raw material powder in a slurry fiber-based biomass raw material powder premixed liquid system; once the mixed liquid is filtered, the filtrate is subjected to gradient precipitation to separate low-dispersion hemicellulose, the precipitate is dried, and the dried material is stored; once filter residue, a polar aprotic solvent and water are mixed, the mixture is heated and stirred in a pressurized reaction kettle for a certain period of time, and undergoes filtering separation to obtain high-purity cellulose, which is washed using water, dried and stored; the filtrate and water are mixed, the mixture is allowed to stand, the precipitated powder is filtered, drying is performed, and the dried material is stored; and the filtrate is subjected to reduced-pressure distillation to recover water, the solvent and a small amount of small-molecular chemicals, and recycling is performed.

Classes IPC  ?

• C08B 37/14 - HémicelluloseSes dérivés
• C07D 307/46 - Atomes d'oxygène liés par des liaisons doubles ou deux atomes d'oxygène liés par des liaisons simples au même atome de carbone
• C07D 307/48 - Furfural
• C07G 1/00 - Dérivés de lignine à bas poids moléculaire
• D21C 3/20 - Réduction en pâte des matières contenant de la cellulose avec des solvants organiques
• C08B 37/00 - Préparation des polysaccharides non prévus dans les groupes Leurs dérivés

Abrégé

Disclosed is a novel method for preparing activated carbon from fast-growing paper mulberry for catalytic oxygen reduction reaction (ORR). In the present invention, tree branches of paper mulberry are used as a raw material to prepare catalytic activated carbon (NAC) via a low-temperature hydrothermal reaction and a steam activation reaction. The specific steps are as follows. Tree branches of paper mulberry are first peeled, dried and pulverized, and then placed in a stainless steel reaction kettle lined with polytetrafluoroethylene. Water and an acid solution are added, followed by stirring evenly, sealing and placing in an oven to react. After naturally cooling to room temperature, filtering, washing with hot water, and drying are performed. The dried sample is then baked at a high temperature in a nitrogen atmosphere, treated with steam for activation, washed, and grounded to obtain NAC. The synthesis method of the invention is simple. The process is environmentally friendly and easy to conduct. The catalyst prepared therefrom can be used to catalyze ORR.

Classes IPC  ?

• H01M 4/88 - Procédés de fabrication
• H01M 4/90 - Emploi de matériau catalytique spécifié

Abrégé

Disclosed are a preparation method for a cis-p-mentha-1,8-secondary amine compound and a herbicidal application thereof. The method comprises: using a cis-p-mentha-1,8-di-schiff base compound as a raw material, putting reducing agents into a polar organic solvent in batches at -10-50ºC, reacting for 1-24h, after the reaction is ended, quenching the reaction solution with distilled water, extracting with dichloromethane, drying with anhydrous sodium sulfate, filtering, performing vacuum distillation to obtain a cis-p-mentha-1,8-secondary amine compound, and recrystallizing or performing silicone column chromatography to obtain a pure product. The seed germination method for a petri dish is used to determine the growth damage symptoms of rice barnyardgrass roots and stems under cultivations of cis-p-mentha-1,8-secondary amine compounds having different concentrations to evaluate the herbicidal activity of the compounds. The method of the present invention has simple process, mild conditions, fast speed, high yield, and wide substrate applicability. The product cis-p-mentha-1,8-secondary amine compound has good inhibition effect on the growth of rice barnyardgrass roots and stems.

Classes IPC  ?

• C07C 211/29 - Composés contenant des groupes amino liés à un squelette carboné ayant des groupes amino liés à des atomes de carbone acycliques d'un squelette carboné non saturé contenant au moins un cycle aromatique à six chaînons le squelette carboné étant substitué de plus par des atomes d'halogène ou par des groupes nitro ou nitroso
• C07C 211/27 - Composés contenant des groupes amino liés à un squelette carboné ayant des groupes amino liés à des atomes de carbone acycliques d'un squelette carboné non saturé contenant au moins un cycle aromatique à six chaînons ayant des groupes amino reliés au cycle aromatique à six chaînons par l'intermédiaire de chaînes carbonées saturées
• C07C 217/58 - Composés contenant des groupes amino et hydroxy éthérifiés liés au même squelette carboné ayant des groupes hydroxy éthérifiés liés à des atomes de carbone d'au moins un cycle aromatique à six chaînons et des groupes amino liés à des atomes de carbone acycliques ou à des atomes de carbone de cycles autres que des cycles aromatiques à six chaînons du même squelette carboné avec des groupes amino reliés au cycle aromatique à six chaînons, ou au système cyclique condensé contenant ce cycle, par l'intermédiaire de chaînes carbonées qui ne sont pas substituées de plus par des atomes d'oxygène liés par des liaisons simples avec des groupes amino et le cycle aromatique à six chaînons, ou le système cyclique condensé contenant ce cycle, liés au même atome de carbone de la chaîne carbonée
• C07C 211/49 - Composés contenant des groupes amino liés à un squelette carboné ayant des groupes amino liés à des atomes de carbone de cycles aromatiques à six chaînons du squelette carboné ayant des groupes amino liés à un seul cycle aromatique à six chaînons ayant au moins deux groupes amino liés au squelette carboné
• C07C 323/32 - Thiols, sulfures, hydropolysulfures ou polysulfures substitués par des halogènes, des atomes d'oxygène ou d'azote ou par des atomes de soufre ne faisant pas partie de groupes thio contenant des groupes thio et des atomes d'azote, ne faisant pas partie de groupes nitro ou nitroso, liés au même squelette carboné ayant l'atome de soufre d'au moins un des groupes thio lié à un atome de carbone d'un cycle aromatique à six chaînons du squelette carboné ayant au moins un des atomes d'azote lié à un atome de carbone acyclique du squelette carboné
• C07D 307/56 - Composés hétérocycliques contenant des cycles à cinq chaînons comportant un atome d'oxygène comme unique hétéro-atome du cycle non condensés avec d'autres cycles comportant deux ou trois liaisons doubles entre chaînons cycliques ou entre chaînons cycliques et chaînons non cycliques avec des hétéro-atomes ou avec des atomes de carbone comportant trois liaisons à des hétéro-atomes, avec au plus une liaison à un halogène, p. ex. radicaux ester ou nitrile, liés directement aux atomes de carbone du cycle
• C07D 307/52 - Radicaux substitués par des atomes d'azote ne faisant par partie d'un radical nitro
• C07D 213/38 - Radicaux substitués par des atomes d'azote liés par des liaisons simples comportant uniquement de l'hydrogène, ou des radicaux hydrocarbonés, liés à l'atome d'azote substituant
• C07D 333/20 - Radicaux substitués par des hétéro-atomes, autres que les halogènes, liés par des liaisons simples par des atomes d'azote
• C07D 207/335 - Radicaux substitués par des atomes d'azote ne faisant pas partie d'un radical nitro
• A01N 33/04 - AminesComposés d'ammonium quaternaire l'atome d'azote étant lié directement à des atomes de carbone aliphatiques ou cycloaliphatiques
• A01N 33/10 - AminesComposés d'ammonium quaternaire contenant de l'oxygène ou du soufre au moins un atome d'oxygène ou de soufre au moins étant lié directement à un système cyclique aromatique
• A01N 43/40 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des composés hétérocycliques comportant des cycles avec un atome d'azote comme unique hétéro-atome du cycle des cycles à six chaînons
• A01N 43/36 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des composés hétérocycliques comportant des cycles avec un atome d'azote comme unique hétéro-atome du cycle des cycles à cinq chaînons
• A01N 43/08 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des composés hétérocycliques comportant des cycles avec un ou plusieurs atomes d'oxygène ou de soufre comme uniques hétéro-atomes du cycle avec un hétéro-atome des cycles à cinq chaînons avec l'oxygène comme hétéro-atome du cycle
• A01N 43/10 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des composés hétérocycliques comportant des cycles avec un ou plusieurs atomes d'oxygène ou de soufre comme uniques hétéro-atomes du cycle avec un hétéro-atome des cycles à cinq chaînons avec le soufre comme hétéro-atome du cycle
• A01P 13/00 - HerbicidesAlgicides

Abrégé

Provided is a method for preparing levulinic acid and furfural by means of the direct liquefaction of a fibrous biomass. The method comprises using the fibrous biomass as a raw material, mixing same with a sulfate catalyst in a polar aprotic solvent/water composite solvent system for catalytic hydrolysis and directionally preparing the levulinic acid by direct liquefaction; filtering the liquefied system and recovering the unreacted lignin, and performing fractional distillation, under reduced pressure, on a filtrate to gradually separate water, hydroxymethylfurfural, the furfural, the polar aprotic solvent and the levulinic acid, wherein the recovered polar aprotic solvent and the sulfate catalyst are recycled with the water obtained by means of the fractional separation. The method uses a wide-source, low-cost and renewable fibrous biomass as a raw material, and is green and environmentally friendly and simple in terms of the processes. In the polar aprotic solvent/water composite solvent system, the target products, i.e. levulinic acid and furfural, have a good selectivity and a high yield, and are easy to separate; and the used solvent, catalyst, etc. can all be efficiently recycled. The method is environmentally-friendly and applicable to industrial large-scale production.

Classes IPC  ?

• C07D 307/50 - Préparation à partir de produits naturels
• C07C 51/00 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides
• C07C 51/44 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation par distillation
• C07C 59/185 - Composés saturés ne comportant qu'un groupe carboxyle et contenant des groupes cétone

Abrégé

A water-based lubricant and a preparation method therefor. Said method comprises: carrying out an epoxide ring-opening reaction of rubber seed oil and epichlorohydrin, and carrying out a ring-closing reaction under the action of sodium hydroxide and calcium oxide, so as to obtain a rubber seed oil-based epoxy; carrying out a ring-opening reaction of the rubber seed oil-based epoxy obtained in the first step with an alcohol amine compound in an inert organic solvent, so as to obtain a rubber seed oil-based polyolamine; carrying out an esterification reaction of an alcohol or alcohol ether and the rubber seed oil-based polyolamine with a phosphoryl chloride compound in an inert organic solvent, so as to obtain a rubber seed oil-based extreme pressure alcohol or a rubber seed oil-based extreme pressure ether; and dissolving the rubber seed oil-based extreme pressure alcohol or the rubber seed oil-based extreme pressure ether in an aqueous solution of a cellulose derivative, and obtaining, using the interaction of hydrogen bonds, a stable, green and environmentally friendly water-based lubricant. Said water-based lubricant has multiple effects of lubricity, environmental protection and extreme pressure wear resistance.

Classes IPC  ?

• C10M 137/04 - Phosphates
• C10M 173/02 - Compositions lubrifiantes contenant plus de 10% d'eau ne contenant pas d'huiles minérales ou grasses
• C07F 9/6584 - Composés hétérocycliques, p. ex. contenant du phosphore comme hétéro-atome du cycle comportant des atomes de phosphore, avec ou sans atomes d'azote, d'oxygène, de soufre, de sélénium ou de tellure, comme hétéro-atomes du cycle comportant des atomes de phosphore et d'azote, avec ou sans atomes d'oxygène ou de soufre, comme hétéro-atomes du cycle comportant un atome de phosphore comme hétéro-atome du cycle

Abrégé

A method for preparing a grease/turpentine base liquid calcium-zinc composite thermal stabilizer for PVC use, comprising the steps of: 1), using industrial fatty acid and turpentine as raw materials to synthesize a grease/turpentine base composite dibasic acid through a Diels-Alder reaction; 2), uniformly mixing any two metallic compounds of zinc oxide, calcium hydroxide and calcium oxide with the grease/turpentine base composite dibasic acid and a solvent respectively, heating to 80-150 ℃, refluxing for 0.5-4 h, and distilling to remove the solvent at a vacuum degree of 1-2mmHg, so as to obtain the corresponding grease/turpentine base composite dibasic acid salts of the two metals; and 3), dissolving an appropriate amount of the grease/turpentine base composite dibasic acid salts of the two metals in a mixed solution of epoxidized soybean oil, an antioxidant, liquid paraffin, phosphite ester, β-diketone and the like, and filtering to obtain a grease/turpentine base liquid calcium-zinc composite thermal stabilizer. The prepared grease/turpentine base liquid calcium-zinc composite thermal stabilizer is used in the field of PVC plastic processing, and employs renewable natural grease resources as main raw materials; the product has good thermal stability and essentially no toxicity, and is environmentally friendly and highly cost-effective.

Classes IPC  ?

• C08L 27/06 - Homopolymères ou copolymères du chlorure de vinyle
• C08K 5/098 - Sels métalliques d'acides carboxyliques
• C08K 5/1515 - Cycles à trois chaînons
• C08K 5/524 - Esters des acides phosphoreux, p. ex. de H3PO3
• C08K 5/07 - AldéhydesCétones

Abrégé

Preparation method of pimaric acid type resin acid includes the following steps: (1) adding refined resin acid, turpentine or rosin and maleic anhydride at a mass ratio of 1 :0.3-1.5 into a reaction bottle, dissolving them in C1-C10 lower fatty acid solvent, the mass ratio of the C1-C10 low fatty acid to refined resin acid is 0.05-30:1, then carrying out addition reaction by heating directly or with assistance of microwave, subsequently cooling, crystallizing, filtering, and washing, and (2) combining the filtrates collected in step (1), stripping of the solvent by vacuum distillation to obtain pimaric acid type resin acid coarse product, dissolving the resulting coarse product in NaOH aqueous solution to prepare aqueous solution of pimaric acid type resin acid salt, adjusting pH to 6-14 with a mineral acid or an organic acid under stirring, and directly purifying or acidifying followed by purifying the resulting precipitation to obtain the final product. The method has the characteristics of high yield, high product content, low cost, and low environmental pollution.

Classes IPC  ?

• C09F 1/02 - Purification
• C07C 61/08 - Composés saturés comportant un groupe carboxyle lié à un cycle à six chaînons
• C07C 51/42 - SéparationPurificationStabilisationEmploi d'additifs