The present invention belongs to the technical field of degradable materials and relates to a biodegradable material. Specifically, the present invention relates to a cellulose acetate-based degradable composite material and a film product thereof, and a preparation method and application thereof. The biodegradable material comprising: a) cellulose acetate and at least one biodegradable polyester material; and b) at least one compatibilizer that can improve interfacial compatibility between cellulose acetate and biodegradable polyester. The biodegradable composite material containing cellulose acetate and polyester has the beneficial effects of improving tensile strength of blends, increasing Young's modulus, and maintaining break elongation.
C08L 67/02 - Polyesters dérivés des acides dicarboxyliques et des composés dihydroxylés
B29C 48/05 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée filamentaire, p. ex. fils
B29C 48/16 - Articles comprenant au moins deux composants, p. ex. couches coextrudées
B29C 48/36 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans la filière ou la matrice
B29K 1/00 - Utilisation de cellulose, de cellulose modifiée ou de dérivés de cellulose, p. ex. de viscose, comme matière de moulage
B29K 67/00 - Utilisation de polyesters comme matière de moulage
C08J 3/24 - Réticulation, p. ex. vulcanisation, de macromolécules
The present invention relates to the field of degradable materials, and relates to a biodegradable material. Specifically, the present invention relates to a cellulose acetate-based degradable composite material and a film product thereof, a preparation method therefor and an application thereof. The biodegradable material of the present invention comprises: a) cellulose acetate and at least one degradable polyester material; and b) at least one compatibilizer capable of improving the interfacial compatibility of the cellulose acetate and the degradable polyester. The degradable composite material containing cellulose acetate and polyester in the present invention has the beneficial effects of improving the tensile strength of a blend, improving the Young's modulus, and maintaining the elongation at break.
C08L 51/08 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des composés macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
C08L 51/00 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères
C08L 51/06 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des homopolymères ou des copolymères d'hydrocarbures aliphatiques ne contenant qu'une seule liaison double carbone-carbone
An aerosol generating product includes an aerosol atomizing element and a smoke cooling element, and the smoke cooling element is located downstream of the flow direction of the smoke generated by the aerosol atomizing element. A filter element is located downstream of the flow direction of the smoke through which the smoke cooling element passes; or a hollow element located upstream of the flow direction of the smoke through which the smoke cooling element passes. The smoke cooling element is composed of particles, and the structure includes a gap for smoke of a cigarette to pass through. The gap through which cigarette smoke can pass is a three-dimensional and non-linear gap. The structure is in the form of rods. When the smoke aerosol passes through the cooling element, ensuring the smoke to pass through smoothly.
A cellulose acetate particle aggregate, a preparation method therefor and an application thereof, which relate to the field of harm reduction additives in cigarettes. The cellulose acetate particle aggregate includes 49-99.5 wt % of cellulose acetate particles, 0-50 wt % of a second kind of particles, and 0.5-20 wt % of a binder. The preparation method involves selecting cellulose acetate particles and a second kind of particles in a certain ratio, or cellulose acetate particles alone, preparing particle aggregates by using an air fluidized granulation method while adding a binder thereto, and sieving the particle aggregates to obtain a cellulose acetate particle aggregate having a required particle size. The cellulose acetate particle aggregate has a porous structure, an irregular shape, and a rough and uneven surface, which help to improve the efficiency of filtering out particulate matters or one or more harmful ingredients in cigarette smoke.
A24D 3/10 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux de cellulose ou de dérivés de la cellulose
A24C 5/52 - Incorporation de filtres ou de bouts dans un boudin de cigarette ou de tabac
A24D 3/02 - Fabrication de filtres à fumée de tabac
A24D 3/04 - Filtres à fumée de tabac caractérisés par leur forme ou leur structure
5.
AEROSOL GENERATED PRODUCT, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
An aerosol generated product (10), comprising an aerosol atomizing unit (20) and a smoke cooling unit (30). The smoke cooling unit (30) is located downstream in a flow direction of smoke generated by the aerosol atomizing unit (20). The aerosol generated product (10) further comprises a filtration unit (40), which is located downstream in the flow direction of the smoke passing through the smoke cooling unit (30). Alternatively, the aerosol generated product (10) further comprises a hollow unit (60), which is located upstream in the flow direction of the smoke passing through the smoke cooling unit (30). The smoke cooling unit (30) is a structure composed of agglomerates of particles. The structure contains gaps allowing the cigarette smoke to pass through, and the gaps allowing the cigarette smoke to pass through are three-dimensional and non-linear gaps, and the structure is in the form of a bar. When the cigarette aerosol passes through the smoke cooling unit (30), the smoke is ensured to have a smooth passage. Since the porous material has through holes, a large smoke cooling area is provided while a low suction resistance is maintained, thereby ensuring smoke flux and enhancing the experience of cigarette consumers.
A cellulose acetate particle aggregate, a preparation method therefor and an application thereof, which relate to the field of harm reduction additives in cigarettes. The cellulose acetate particle aggregate includes 49-99.5 wt % of cellulose acetate particles, 0-50 wt % of a second kind of particles, and 0.5-20 wt % of a binder. The preparation method involves selecting cellulose acetate particles and a second kind of particles in a certain ratio, or cellulose acetate particles alone, preparing particle aggregates by using an air fluidized granulation method while adding a binder thereto, and sieving the particle aggregates to obtain a cellulose acetate particle aggregate having a required particle size. The cellulose acetate particle aggregate has a porous structure, an irregular shape, and a rough and uneven surface, which help to improve the efficiency of filtering out particulate matters or one or more harmful ingredients in cigarette smoke.
A24D 3/10 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux de cellulose ou de dérivés de la cellulose
A24D 3/02 - Fabrication de filtres à fumée de tabac
A24D 3/04 - Filtres à fumée de tabac caractérisés par leur forme ou leur structure
A24C 5/52 - Incorporation de filtres ou de bouts dans un boudin de cigarette ou de tabac
7.
CELLULOSE ACETATE PARTICLE AGGREGATE, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
A cellulose acetate particle aggregate, and a preparation method therefor and an application thereof, which relate to the field of harm reduction materials added in cigarettes. The cellulose acetate particle aggregate contains 49-99.5 wt% of cellulose acetate particles, 0-50 wt% of a second kind of particles, and 0.5-20 wt% of an adhesive. The preparation method is: selecting cellulose acetate particles and a second kind of particles in a certain ratio, or only cellulose acetate particles, preparing particle aggregates by using an air-fluidized granulation method and adding an adhesive, and sieving the particle aggregates to obtain a cellulose acetate particle aggregate having a required particle size. The cellulose acetate particle aggregate has a porous structure, an irregular shape, and a rough and uneven surface in physical form, which helps to improve the efficiency of filtering out particulate matters or one or more kinds of harmful ingredients in cigarette smoke.
A24D 3/02 - Fabrication de filtres à fumée de tabac
A24D 3/10 - Emploi de matériaux particuliers pour les filtres à fumée de tabac de matériaux organiques comme matériaux de base ou constituants principaux de cellulose ou de dérivés de la cellulose
8.
SOLID-LIQUID SEPARATION PROCESS WITH MULTI-EFFECT EVAPORATION IN COMBINATION WITH STIRRING EVAPORATION
A solid-liquid separation process, comprising the following steps: A. concentrating an aqueous solution or a mixed solution in water-organic solvents containing soluble solids at a low concentration to give a medium-concentrated mixed solution; B. discharging the medium-concentrated mixed solution into a stirring evaporation kettle (9), and further concentrating same by evaporation to give a high-concentrated mixed solution; and C. controlling the solid content of the high-concentrated mixed solution to ensure that same is discharged out of the stirring evaporation kettle (9) in the liquid form; returning the vapour generated in step B to the multi-effect evaporation system and heating the liquid while the vapour phase is condensing, such that the heat is recovered and the recovery of the solution is ensured. The high-concentrated mixed solution discharged in the liquid form in step C is cooled and solidified.
The present invention belongs to the field of organic polymer synthesis technology, and provides cellulose ester soluble in acetone and a direct synthesis process therefor. The synthesis process comprises the following steps: dissolving or partially dissolving a cellulose in a good solvent with a low boiling point with trifluoroacetic acid as the main ingredient, stirring and impregnating, and then adding an organic acid anhydride or an organic acid for an esterification reaction, recovering most of the good solvent having a low boiling point, subjecting the remaining solution to hydrolysis and precipitation to remove trifluoroacetic acid ester groups of the cellulose organic acid/trifluoroacetic acid mixed ester in the product, and precipitating to obtain the cellulose ester soluble in acetone. The cellulose ester made by the present invention has a degree of substitution of 2.2 to 2.6; furthermore, the cellulose ester has a high molecular weight, uniformly distributed ester groups, no sulphonic acid ester group in the macromolecules, and has a good physical mechanical strength and thermal stability. Cellulose esters of different degrees of substitution are prepared in the present invention by a direct synthesis process; this can save reaction time, reduce the amounts of the chemical reagents, and can also reduce the pollution to the environment caused by sulphates.
A cheek plate device is provided for a stuffer box crimper, which has brackets, adjusting mechanisms, cheek plates, a base frame and a pair of nip rollers. The adjusting mechanisms are mounted on the brackets, which can slide relative to the bracket. The cheek plates are mounted on the inside of the adjusting mechanisms. Two identical brackets, adjusting mechanisms and cheek plates are mounted symmetrically at two sides of the pair of nip rollers and affixed on the base frame. The cheek plate device further comprises fluid thrust devices, which include fluid inlets and cylinders located on the brackets. One end of the adjusting mechanism is inserted into and coupled with the cylinder. The fluid of the thrust device flows into the cylinders through the inlets and pushes, via the adjusting mechanisms, the cheek plates toward the sides of the nip rollers. The thrust device can work hydraulically or pneumatically.
D02G 1/12 - Production de fibres, filaments, filés ou fils, crêpés ou ondulés ou leur donnant de telles caractéristiques latentes avec utilisation de boîtes à bourrage
F16B 2/14 - Brides ou colliers, c.-à-d. dispositifs de fixation dont le serrage est effectué par des forces effectives autres que la résistance à la déformation inhérente au matériau dont est fait le dispositif utilisant des coins
11.
Wear-resistant clamping plate device for stuffer box crimper
A cheek plate device for a stuffer box crimper, comprising a bracket, adjusting mechanisms, cheek plates, a base, a pair of nip rollers and thrust devices. The adjusting mechanisms, which can slide relative to the bracket, are arranged on the bracket, the cheek plates are installed on the inner sides of the adjusting mechanisms, a pair of identical brackets, adjusting mechanisms and cheek plates are symmetrically installed on each side of the pair of nip rollers and affixed on the base. The adjusting mechanisms have adjusting blocks and elastic devices, the elastic devices are installed at the ends of the adjusting blocks and push against the thrust devices, the thrust devices push the adjusting blocks via the elastic devices, and the adjusting blocks push the two cheek plates moving towards the sides of the pair of nip rollers.
D02G 1/12 - Production de fibres, filaments, filés ou fils, crêpés ou ondulés ou leur donnant de telles caractéristiques latentes avec utilisation de boîtes à bourrage
F16B 2/14 - Brides ou colliers, c.-à-d. dispositifs de fixation dont le serrage est effectué par des forces effectives autres que la résistance à la déformation inhérente au matériau dont est fait le dispositif utilisant des coins
12.
LOW-DENSITY ORGANIC SOLVENT AQUEOUS SOLUTION RECYCLING HEAT PUMP ASSISTED DISTILLATION DEVICE AND PROCESS
A low-density organic solvent aqueous solution recycling heat pump assisted distillation device and process. The device comprises: a feed preheater, a stripper column, a compressor, a stripper reboiler, and a distillation column, and the feed preheater, the stripper column, the compressor, the stripper reboiler, and the distillation column are sequentially connected through a pipeline. The process thereof comprises steps of: feeding aqueous solution with a low-density organic solvent into the feed preheater and heating the solution to a bubble point; feeding the solution into the stripper column for stripping processing; feeding steam collected from the top of the stripper column into the compressor for compression, and then feeding the compressed steam into the stripper boiler as a heat source for heat exchange; feeding condensate from the stripper reboiler into the distillation column for distillation processing; and collecting product at the top of the distillation column.
Provided are a compression-type heat pump assisted distillation device and process. The device comprises: a feed evaporator (1), a feed steam compressor (2), a distillation column (3), a column top condensate cooler (4), and a reflux tank (5) that are sequentially connected through a pipeline. Further provided is a compression-type heat pump assisted distillation process, using steam at the top of the distillation column as a heat source for heating feedstock.
The present invention relates to the technical field of chemical celluloses. Disclosed are a cellulose acetate microsphere preparation method and product prepared thereby. The cellulose acetate microsphere preparation method of the present invention comprises the following steps: dissolving in a mixed solvent a cellulose acetate tow containing a plasticizer and obtaining polymer slurry; then adding the obtained polymer slurry to a dispersion liquid, fully mixing and obtaining suspension liquid; reducing the solubility of the cellulose acetate and separating out the cellulose acetate microsphere. The cellulose acetate microsphere of the present invention has an average particle diameter of 5-1500μm, an average pore diameter of 2-200nm, a specific surface area of 0.6m2•g-1-10.0m2•g-1, the degree of substitution of the cellulose acetate acetyl is 2.0-2.6, and the level of the residual plasticizer is 1.0%-3.0% by weight of the cellulose acetate microsphere. The microsphere of the present invention has the advantages of easy regeneration, good biocompatibility and good hydrophilicity.
C08J 3/16 - Pulvérisation ou granulation par coagulation de dispersions
C08J 9/28 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement par élimination d'une phase liquide d'un objet ou d'une composition macromoléculaire, p. ex. par séchage du coagulum
C08B 3/28 - Isolement de l'ester cellulosique par précipitation
A wear-resistant clamping plate device for a stuffer box crimper, comprising a bracket (1), regulating mechanisms, wear-resistant clamping plates (3), a base (4), a crimping roller pair (5) and thrust devices. The regulating mechanisms which can slide relative to each other are arranged on the bracket (1), the wear-resistant clamping plates are provided on the inner sides of the regulating mechanisms. A pair of identical brackets (1), regulating mechanisms and wear-resistant clamping plates (3) are symmetrically arranged on each side of the crimping roller pair (5) and placed on the base (4). The regulating mechanisms comprise regulating blocks (2) and elastic devices, the elastic devices are arranged at the ends of the regulating blocks (2) and push against the thrust devices, the thrust devices push the regulating blocks (2) via the elastic devices, and the regulating blocks (2) push the two wear-resistant clamping plates (3) to move towards the sides of the crimping roller pair (5). As the elastic devices are able to compensate in real time, the device according to present invention can not only conveniently and precisely regulate the clamping force between the wear-resistant clamping plates and the sides of the crimping roller pair, but also automatically compensate for the mechanical abrasion of the wear-resistant clamping plates or the crimping roller pair that occurs while the crimper is operating.
D02G 1/12 - Production de fibres, filaments, filés ou fils, crêpés ou ondulés ou leur donnant de telles caractéristiques latentes avec utilisation de boîtes à bourrage
F16B 2/14 - Brides ou colliers, c.-à-d. dispositifs de fixation dont le serrage est effectué par des forces effectives autres que la résistance à la déformation inhérente au matériau dont est fait le dispositif utilisant des coins
16.
WEAR-RESISTANT CLAMPING PLATE DEVICE FOR STUFFER BOX CRIMPER
A wear-resistant clamping plate device for a stuffer box crimper, which comprises a bracket (1), regulating mechanisms, wear-resistant clamping plates (3), a base (4) and a crimping roller pair (5). The regulating mechanisms which can slide relative to each other are arranged on the bracket (1), the wear-resistant clamping plates (3) are provided on the inner sides of the regulating mechanisms. A pair of identical brackets (1), regulating mechanisms and wear-resistant clamping plates (3) are symmetrically arranged on each side of the crimping roller pair (5) and placed on the base (4). The device also comprises fluid thrust devices. Fluid inlets and cylinders are arranged on the bracket (1), the ends of the regulating mechanisms insert into the cylinders to work therewith, the fluid in the fluid thrust devices flows from the fluid inlets into the cylinders and the wear-resistant clamping plates (3) are forced to move towards the sides of the crimping roller pair (5) by the regulating mechanisms. Liquid or gas can be used in the fluid thrust devices. The device according to present invention can not only conveniently and precisely regulate the clamping force between the wear-resistant clamping plates and the sides of the crimping roller pair to a set value, but also automatically compensate in real time for the mechanical abrasion of the wear-resistant clamping plates or the crimping roller pair that can occur while the crimper operates.
D02G 1/12 - Production de fibres, filaments, filés ou fils, crêpés ou ondulés ou leur donnant de telles caractéristiques latentes avec utilisation de boîtes à bourrage
F16B 2/14 - Brides ou colliers, c.-à-d. dispositifs de fixation dont le serrage est effectué par des forces effectives autres que la résistance à la déformation inhérente au matériau dont est fait le dispositif utilisant des coins
The present invention provides a cellulose pulp and producing method thereof. The average degree of polymerization of the cellulose pulp is 880 to 1500, the crystallinity of cellulose I is 60%-74%, the content of xylan is not more than 1.0%, the moisture content is 5.0%-8.9%, and the value of R-10 is not less than 96.5%. The cellulose pulp of present invention has good performances, and is suitable for commercial production.
brevets
