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196results about How to "Speed up penetration" patented technology

Chitosan emergent hemostasis material

The invention provides a chitosan emergent hemostasis material, which is provided with at least two layers of structures: a chitosan hemostasis layer as an upper layer, and a polyacrylic acid grafting chitosan lining layer as a lower layer, wherein the chitosan hemostasis layer is of a structure of a porous microsphere, porous fiber, porous sponge, or a compound of the porous microsphere, the porous fiber and the porous sponge; and the polyacrylic acid grafting chitosan lining layer is of a structure of porous fiber, porous sponge, or a compound of the porous fiber and the porous sponge. According to the chitosan emergent hemostasis material, the polyacrylic acid grafting chitosan is used as the lining layer of the chitosan, so that powerful water suction force can be provided, seepage velocity of blood in the chitosan hemostasis material is improved, blood is further concentrated, the density of the hemostasis material is improved simultaneously, the hemostasis material is easier to sink to arrive at a bleeding point, gravity press of a bleeding part is formed, pressurization is convenient, and the hemostasis effect is improved. Meanwhile, the polyacrylic acid grafting chitosan layer also can be used as a medicine-carrying substrate, can be used for carrying antibacterial drug, acesodyne, factors for promoting tissue repair and the like, and is good for preventing and controlling infection while stopping bleeding, relieving pains, and accelerating wound tissue healing.
Owner:欣乐加生物科技温州有限公司

Ultrasonic-assisted bio-enzyme ligin removing method and device thereof

ActiveCN106087508ARealize the purpose of industrialized mass productionPulping speed is fastCellulose treatment using microorganisms/enzymesNon-woody plant/crop pulpFiberEngineering
The invention relates to the technical field of biodegradation, in particular to an ultrasonic-assisted bio-enzyme ligin removing method and a device thereof. The method comprises the steps that wood fiber raw materials such as reed or bamboo willows are purified, then soaked with water and ground into filamentous fibers; water and a bio-enzyme ligin removing auxiliary are mixed evenly, and the filamentous fibers are added; air is introduced, the temperature is raised, an ultrasonic generator is started, and a constant-temperature and constant-pressure reaction is carried out; hydrogen peroxide is added into the materials for a reaction, and the reaction is terminated when the whiteness of pulp is higher than or equal to 75% ISO. The device used in the method comprises a bucket, a feeding port, a safety valve, a motor, a coupler, an air inlet, a water inlet, a pulp outlet and a supporting part. A mechanical rubbing and stirring device is arranged in the bucket, and the ultrasonic generator and an ultrasonic transducer are further arranged outside the bucket and are connected through a connecting device. According to the ligin removing method and the device, the treatment cycle is short, and the treatment capability and efficiency are high.
Owner:福建祥业实业有限公司

Method and system for rapidly producing hard-core preserved duck eggs in semi-continuous mode by vacuum decompression and sponge permeation method

The invention relates to a method for rapidly producing hard-core preserved duck eggs in a semi-continuous mode by a vacuum decompression and sponge permeation method. The method comprises the following steps of: preparing pickling material liquid, putting eggs, spraying the pickling material liquid on the eggs, carrying out vacuum decompression treatment on the eggs, taking out the eggs from a jar, washing the eggs, drying the eggs in air, coating membranes on the eggs, and maturing the eggs so as to obtain the hard-core preserved duck eggs. According to the method, the hard-core preserved duck eggs are rapidly produced by the vacuum decompression and sponge permeation method, air in the duck eggs can be sucked out in a repeated vacuuming mode, and subsequently, due to the pressure difference inside and outside the duck eggs, alkali liquid can rapidly permeate into the eggs in the primary pickling period during the process of rising to a normal pressure, so that the pickling period of the preserved duck eggs is shortened. Compared with a mud coating method, the method enables the eggs to be cleaner and more sanitary, ensures a high mechanization degree and semi-continuous operation, and can effectively improve the production efficiency of the preserved duck eggs; and as the material liquid is leadless, the produced preserved duck eggs are safe and harmless.
Owner:TIANJIN UNIV OF SCI & TECH

Preparation method of composite absorbent core and production device thereof

The invention discloses a preparation method of a composite absorbent core and a production device thereof. The production device comprises a conveying device, a front glue spraying device, a cloth guide roller, a lower polymer injection device, a negative pressure device, an upper polymer injection device and a rear glue spraying device connected in sequence. The lower polymer injection device isa blanking roller, a plurality of grooves are arranged on the outer wall of the blanking roller, and when the blanking roller rotates, the polymer water-absorbent resin is injected into the non-wovenfabric through the grooves; The blanking roller is also provided with a filling area matched with the flow guiding groove, and a filler is arranged in the filling area for closing the groove, so thatthe filling area is free of macromolecule water-absorbent resin, thereby forming the flow guiding groove when blanking. The flow guide groove formed by the invention is accurate in positioning and clear in outline, avoids the drift and accumulation of macromolecules, reduces reverse osmosis water and leakage phenomenon, improves the permeation speed and diffusion speed of the core, and is simpleand easy to replace the position and shape of the flow guide groove.
Owner:广东昱升个人护理用品股份有限公司

Composite rubber hose for conveying LPG, LNG and strongly corrosive chemical solvent and preparation method thereof

The invention discloses a composite rubber hose for conveying LPG, LNG and strongly corrosive chemical solvent and a preparation method thereof. Low density polyethylene, ultra-high molecular weight polyethylene and macromolecule cross-linked polyethylene serve as raw materials; after scientific compound and vulcanization of a rubber hose, a chemical substance with a good adhesive property is obtained for preparing a liner film; meanwhile, corona treatment is carried out on the bonding face of the liner film and the bonding face of the rubber hose, and fiberglass reinforcing fiber with radiation protection performance is compounded on the surface layer; therefore, the surface layer of the rubber hose has good radiation protection performance, hidden danger of conveying pipelines caused by ionizing radiation is avoided, and finally the composite rubber hose which has the firmly bonded liner film, and is high in radiation protection and capable of conveying LPG, LNG and strongly corrosive chemical solvents is prepared, the hose can absorb as much as 97.5% to 99.5% of X-rays, gamma-rays and various neutrons in nuclear radiation, and the adhesive force (N/25mm) between the liner film and a rubber layer reaches 160-180.
Owner:河北泽邦塑胶科技有限公司

Method for manufacturing vacuum mould closing of false ogive

The invention provides a vacuum mold closing die and the application thereof in a fairing vacuum mold closing manufacturing method. The vacuum mold closing die comprises a compound lower die, wherein, a compound lower end upper module is arranged on the upper side of the compound lower die; a dynamic seal ring is arranged along the circumference of the upper side of the upper module of the compound lower die; an aerofoil seal ring is arranged on one side of the dynamic seal ring; a semi-rigid composite material upper die is arranged on the compound lower die and the upper module thereof; a glue storing device is in the lower position of the semi-rigid composite material upper die; a glue outlet is formed at the upper end of the glue storing device; a glue injecting port is formed in the higher position of the semi-rigid composite material upper die; a flow channel is arranged at the lower end of the glue injecting port; and a vacuum orifice is formed on the upper side of the semi-rigid composite material upper die. The vacuum mold closing die can be applied in the fairing vacuum mold closing manufacturing method. The vacuum mold closing die and the application thereof in the fairing vacuum mold closing manufacturing method has the advantages that the investment and the manufacturing cost are low; the production efficiency is high; almost no industrial refuse is generated; the performance of a manufactured product is excellent; and the working environment is good.
Owner:DONGHUA UNIV +1

Method and device for measuring permeability coefficients of stratums at different depths in field

A method and device for measuring permeability coefficients at different depths on site, the method comprising the following steps: inserting a connecting pipe into the ground layer to be measured, injecting water into a water injection tank to a designated position, and then injecting water into the water injection tank Apply pressure, calculate and measure the permeability coefficient and the average permeability coefficient of each stage; the device includes a water injection tank at the top, a connecting pipe, a support structure, a pile head, a pressurizing device and a pressure measuring device, and the water injection tank is installed on the top of the support structure , the inner bottom of the water injection tank is equipped with a pressure measuring device for measuring water pressure, and the top of the water injection tank is equipped with a pressurizing device for adjusting the water pressure in the water injection tank; the top water inlet of the connecting pipe is sealed with the inner cavity of the water injection tank In communication, the water outlet at the bottom of the communication pipe passes through the support structure and communicates with the pile head in a sealed manner. The beneficial effects of the invention are: it can fully reflect the real seepage situation of the site, can truly reflect the real situation of the soil body and is easy to operate.
Owner:ZHEJIANG UNIV OF TECH
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