Abrégé

A preparation method for a PC masterbatch supporting an interface adjustment additive and preparation of a PC composite material. An interface adjustment additive is prepared by using as raw materials three monomers methyl acrylate (MA) or an itaconate derivative, glycidyl methacrylate (GMA) and methyl methacrylate (MMA). The interface adjustment additive is mixed with a PC solution so as to prepare said PC masterbatch by means of co-precipitation. Said PC masterbatch is mixed with PC and a polyester so as to be used for preparing a PC composite material by means of melt blending. The prepared PC composite material has good solvent resistance, small color change, good transparency and excellent physical properties.

Classes IPC  ?

• C08J 3/22 - Formation de mélanges de polymères avec des additifs, p. ex. coloration en utilisant les techniques des charges mères
• C08L 69/00 - Compositions contenant des polycarbonatesCompositions contenant des dérivés des polycarbonates
• C08L 33/12 - Homopolymères ou copolymères du méthacrylate de méthyle
• C08L 67/02 - Polyesters dérivés des acides dicarboxyliques et des composés dihydroxylés
• C08F 220/14 - Esters méthyliques
• C08F 220/32 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle contenant des radicaux époxyde

Abrégé

A lightweight and comfortable bulletproof and stab-proof garment and a manufacturing method therefor. The lightweight and comfortable bulletproof and stab-proof garment comprises an outer jacket and a protective core sheet arranged in the outer jacket, wherein the protective core sheet comprises a first protective layer (1), a second protective layer (2), a third protective layer (3) and a buffer layer (4), which are sequentially stacked. The first protective layer (1) comprises 5 to 15 layers of a first aramid weftless fabric woven from aramid fibers and a first adhesive that includes waterborne polyurethane, 1,4-butanediol, methyltrimethoxysilane, methyltrichlorosilane, dicyandiamide and nano-montmorillonite; the second protective layer (2) comprises 10 to 25 layers of a second aramid weftless fabric woven from aramid fibers and a second adhesive that includes waterborne polyurethane, a waterborne epoxy resin, methyl methacrylate, ethylene glycol, N-methyldiethanolamine and a titanate coupling agent; and the third protective layer (3) comprises 5 to 12 layers of a third aramid weftless fabric woven from aramid fibers and a third adhesive that includes waterborne polyurethane, aminomethyl silicone oil, ammonium polyphosphate and a titanate coupling agent. The bulletproof and stab-proof garment can have a reduced weight while meeting protection requirements, and has improved softness and wearing comfort.

Classes IPC  ?

• D04H 3/009 - Polymères obtenus par condensation ou par réaction
• D04H 3/12 - Non-tissés formés uniquement ou principalement de fils ou de matériaux filamenteux similaires de bonne longueur caractérisés par la méthode de renforcement ou de consolidation avec filaments ou fils retenus ensemble par des agents de liage chimiques ou thermo-activables, p. ex. adhésifs, appliqués ou incorporés sous une forme liquide ou solide
• B32B 5/12 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments caractérisés par la disposition relative des fibres ou filaments des couches adjacentes

Abrégé

The present application provides a comfortable lightweight bullet-proof and stab-resistant suit and a preparation method thereof. A first aspect of the present application provides a comfortable lightweight bullet-proof and stab-resistant suit, including a sheath and a protection core sheet disposed in the sheath, and the protection core sheet includes a first protection layer, a second protection layer, a third protection layer and a buffer layer which are sequentially stacked together. The bullet-proof and stab-resistant suit provided in the present application has better response protection characteristics in the process of bullet penetration or knife tip stab, and the prepared aramid unidirectional cloth has low areal density, apparent flatness, no bubbles, and excellent softness, so that any bending within 180° can be realized.

Classes IPC  ?

• A41D 31/24 - Matériaux spécialement adaptés aux vêtements de dessus caractérisés par une fonction ou une utilisation particulières résistants à la contrainte mécanique, p. ex. résistants au perçage
• A41D 13/05 - Vêtements protecteurs de travail ou de sport, p. ex. blouses de chirurgien ou vêtements protégeant des coups ou des chocs protégeant uniquement une partie particulière du corps

Abrégé

A high-pressure liquid hydrogen conveying system for liquid hydrogen engine testing and a method thereof. According to the high-pressure liquid hydrogen conveying system, pressurized hydrogen is pre-cooled for the first time by using cooling capacity generated by throttling of high-pressure hydrogen, and then the pressurized hydrogen is pre-cooled for the second time by using the cooling capacity generated by throttling of high-pressure liquid hydrogen, thereby reducing a temperature driving potential difference of supercritical transition of the liquid hydrogen, and ensuring that the liquid hydrogen conveying system can output conventional liquid hydrogen within a set time. The high-pressure hydrogen and the high-pressure liquid hydrogen can be self-driven during throttling refrigeration, an additional driving device such as a compressor or a booster pump is not required, and the system has a simple structure and reliable performance.

Classes IPC  ?

• F17D 1/00 - Systèmes de canalisation

Abrégé

Disclosed in the present invention are an integrated system and a method for Mars surface carrier rocket propellant in-situ preparation. In the present invention, a methane propellant is prepared from carbon dioxide in the atmosphere of Mars, and a liquid oxygen propellant and oxygen required by a life support system are prepared by means of water electrolysis in water-containing minerals of Mars, such that the present invention has a high degree of fit with requirements of liquid oxygen methane carrier rockets and Mars exploration tasks. In the present invention, product water of a liquid methane preparation process is conveyed to a water electrolysis system, so that the exploitation amount of the water-containing minerals can be reduced by half, that is, oxygen in carbon dioxide of Mars is used as an important source of a liquid oxygen propellant.

Classes IPC  ?

• C06D 5/08 - Production de gaz sous pression, p. ex. pour cartouches de mine, cartouches de mise à feu, fusées par réaction de plusieurs liquides
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C07C 1/12 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir d'oxydes de carbone à partir d'anhydride carbonique avec de l'hydrogène
• C07C 9/04 - Méthane

Abrégé

Disclosed in the present invention are a dual evaporation-condensation cycle cooling device and method for a high-temperature superconducting motor of a hydrogen-powered aircraft. The present invention uses vaporization latent heat in a liquid hydrogen fuel in a hydrogen-powered aircraft as a thermal sink for a superconducting motor, which avoids the problems of power consumption, weight and complexity caused by using a low-temperature cooling machine. An internal evaporation-condensation cycle can satisfy the cooling requirement during the regular operation of the superconducting motor, while an external evaporation-condensation cycle can be used as a supplement for the cooling capacity of the device when the internal evaporation condensation cycle is damaged or cannot satisfy the requirement, the two cycles being coupled to effectively enhance the adaptability of the cooling device to a complex environment. Once supply of liquid hydrogen is interrupted for a short time, liquid nitrogen absorbs the heat of the high-temperature superconducting motor and is vaporized, thereby ensuring continuous operation of the high-temperature superconducting motor in an extreme environment.

Classes IPC  ?

• H02K 55/00 - Machines dynamo-électriques comportant des enroulements qui fonctionnent à des températures cryogéniques
• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
• H02K 9/20 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile dans lesquels l'agent de refroidissement se vaporise dans l'enveloppe de la machine

Abrégé

Provided is a cut-tobacco impregnation and expansion system having a sealed configuration, comprising a delivery device (200), the upper part of said delivery device (200) being provided with an impregnation tank (100) and the lower end of said delivery device (200) being connected to a tobacco expansion device (300); the invention is characterized in that the delivery device (200) comprises a tightly sealed passageway, the two ends of the passageway being sealedly connected to the impregnation tank (100) and the tobacco expansion device (300), respectively. The delivery device is in a sealed configuration, such that the entire system is in a tightly sealed environment; thus the cut-tobacco impregnation process is in said environment at all times, causing the expanding agent to be inside the system regardless of whether the expanding agent is gaseous or liquid, reducing the loss of the expanding agent during the process of cut-tobacco expansion.

Classes IPC  ?

• A24B 3/18 - Autres traitements des feuilles, p. ex. gonflement, gaufrage, nettoyage

Abrégé

Provided is a cut-tobacco impregnation and expansion system, comprising a delivery device (200); the upper part of the delivery device is provided with an impregnation tank (100), and the lower end of the delivery device is connected to a tobacco expansion device (300); the lower part of the impregnation tank is connected to a medium storage tank (62) by means of a medium recovery pipe (6); the top part of the impregnation tank is connected to the medium storage tank by means of a medium spray pipe (8); the delivery device and/or tobacco expansion device is connected to a negative-pressure device by means of an exhaust pipe (4); the outlet of the negative-pressure device is connected to a medium storage tank (10) by means of a secondary medium recovery pipe. A negative-pressure device is used to compress and recover the gaseous medium evaporated from the impregnated tobacco when same is in the delivery device and/or expansion device, reducing the waste of the vaporized medium.

Classes IPC  ?

• A24B 3/18 - Autres traitements des feuilles, p. ex. gonflement, gaufrage, nettoyage

Abrégé

Provided is a cut-tobacco expansion process which reduces medium loss, comprising the steps: (1) impregnation: impregnating cut tobacco in a medium to form impregnated tobacco; (2) medium recovery: recovering liquid and gaseous medium after impregnation; (3) delivery: after impregnated tobacco is loosened, delivering fixed quantity thereof to tobacco expansion device (300) by means of vibration; at the same time, heating the surface of the impregnated tobacco, causing the liquid medium on the surface of the impregnated tobacco to evaporate; (4) expansion: heating the impregnated tobacco in the tobacco expansion device (300), causing the liquid medium inside the impregnated tobacco to evaporate and result in expanded tobacco; (5) secondary recovery of medium: recovering the gaseous medium evaporated in step (3) and/or step (4), and compressing and condensing the gaseous medium, then storing same. In the cut-tobacco expansion process, the gaseous medium evaporated during delivery and/or expansion of the impregnated tobacco is compressed and recovered, greatly reducing the loss caused by the vaporization of the impregnated medium in the cut tobacco; thus the medium is repeatedly recycled, solving the problem of the high cost of the large amount of medium used in a cut-tobacco expansion system.

Classes IPC  ?

• A24B 3/18 - Autres traitements des feuilles, p. ex. gonflement, gaufrage, nettoyage

Abrégé

A method for soaking tobacco shred includes: (1) loading the tobacco shred into a preheated soaking device, then vacuuming the device; (2) spraying liquid expanding agent to the tobacco shred; (3) injecting gaseous expanding agent into the soaking device; (4) soaking. A device for soaking tobacco shred includes a tank body (3), an upper cover (1) of the tank, a lower cover (4) of the tank, and a hydraulic opening device(2). A spraying device (6) is provided in the upper cover of the tank, wherein, the tank body has two jackets, the inner wall of the inner jacket is screen, the aperture of the screen is 1.5 mm. The method and the device are both simple and convenient to operate, they can achieve good soaking effect and realize the continuous soaking of the tobacco shred.

Classes IPC  ?

• A24B 3/18 - Autres traitements des feuilles, p. ex. gonflement, gaufrage, nettoyage

Abrégé

A method for recovering tobacco expansion agent includes the following steps: impregnating the tobacco in a expansion agent, then recovering the expansion agent in the impregnating apparatus, lastly expanding the impregnated tobacco, the boiling point of the expansion agent is between 20℃ and 80℃, recovering the liquid expansion agent in the impregnating apparatus and gasifying it, the gasified expansion agent being farther condensed to liquid after primary cooling, the storage tank for the condensed expansion agent being used circularly.A apparatus for recovering tobacco expansion agent comprises a tower(1), a gas inlet pipe(8) on the lower part of the tower, a spraying apparatus(4) on the upper part of the tower,a gas outlet(2) on the top of the tower and a liquid outlet(3) at the bottom of the tower. A down opening cone-shaped outlet (5) is provided on the end of the inlet pipe, and a gas reflect distribution cone(7) is provided on the lower end of the cone-shaped outlet. The method and apparatus can purify the liquid expansion agent and remove the impurity of the tobacco.

Classes IPC  ?

• A24B 3/18 - Autres traitements des feuilles, p. ex. gonflement, gaufrage, nettoyage

Abrégé

A recycling method for making expanded tobacco shred, the method includes the following steps: (1) putting tobacco shred into a pre-heated impregnating vessel and then evacuating said vessel; (2) spraying a liquid expanding agent on the tobacco shred; ( 3) injecting a gaseous expanding agent into the impregnating vessel; (4) impregnating; (5) first, recovering the liquid expanding agent, then recovering the gaseous expanding agent; (6) expanding the impregnated tobacco shred, while at the same time carrying out again the operations of step (2) and/or of step (3), using the liquid expanding agent and the gaseous expanding agent recovered in step (5).

Classes IPC  ?

• A24B 3/18 - Autres traitements des feuilles, p. ex. gonflement, gaufrage, nettoyage

Abrégé

A method for continuously puffing tobacco shred with microwave includes the following steps: soaking the tobacco shred in expanding agent; recovering the expanding agent in the soaking device after soaking; puffing the soaked tobacco shred with a microwave drier, thereby obtaining expanded tobacco shred. The expanding agent contains one component or more than two components selected from the group consisting of C4-C12 alcohol, C4-C12 ketone, C2-C12 halogenated ether, C3-C12 alkane, or C3-C12 alkane substituted with more than two halogen atoms. The filling value of the obtained puffed tobacco shred reaches more than 7.5, the whole rate of the puffed tobacco shred is more than 90%, the moisture content of the puffed tobacco shred is 12.5±0.5%. The tobacco shred is uniformly puffed, and the obtained tobacco shred does not have water stain.

Classes IPC  ?

• A24B 3/18 - Autres traitements des feuilles, p. ex. gonflement, gaufrage, nettoyage