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23results about How to "Fully stretched" patented technology

Production process of high-elasticity heat-resistant polyester yarn

The invention relates to a production process of a high-elasticity heat-resistant polyester yarn, which comprises the following steps: firstly, selecting high-molecular-weight polyethylene glycol terephthalate, adding 1-3% of nano filler and 5-10% of functional copolymer, and drying at 150 DEG C for 4-6 hours to improve the stability and processability of the material; secondly, melt extrusion is conducted at 280-290 DEG C, spinning is conducted through a multi-section temperature control spinning head, and the fiber cooling uniformity is effectively controlled. Then, two times of drafting and a heat setting process are adopted, the orientation degree of a molecular chain is improved in one time of drafting, and low-temperature plasma treatment is combined to optimize the surface activity and the setting effect of the fibers. In the secondary drafting, the fiber deformation is finely adjusted at low temperature, the thermal damage is reduced, the elasticity is improved, and finally, xylanase treatment and ultraviolet curing are combined, so that the softness, the skin-friendly property and the weather resistance of the fiber are remarkably improved.
Owner:HANGZHOU LINGANG CHEM FIBER CO LTD

Phase change fiber membrane with composite core-sheath structure as well as preparation method and application of phase change fiber membrane

The invention discloses a phase change fiber membrane with a composite core-sheath structure and a preparation method and application thereof.The method comprises the steps that polyacrylonitrile is dissolved in N 'N-dimethylformamide and stirred to be completely dissolved, then hydroxylated boron nitride is added, the hydroxylated boron nitride is evenly dispersed through ultrasonic treatment, and a sheath spinning precursor solution is prepared; dissolving polyethylene glycol in N 'N-dimethylformamide, stirring to melt the polyethylene glycol, and taking the polyethylene glycol as a core layer spinning precursor solution; preparing a phase change fiber membrane with a core-sheath structure from the sheath spinning precursor solution and the core spinning precursor solution through a coaxial electrostatic spinning process; and placing the phase change fiber membrane with the core-sheath structure in an ethanol dispersion liquid of hydroxylated boron nitride, carrying out ultrasonic dip-coating, and then carrying out cold pressing treatment to prepare the phase change fiber membrane with the composite core-sheath structure. The obtained composite core-sheath structure phase change fiber membrane has good latent heat property, thermal conductivity and flexibility, and meanwhile, leakage of the phase change material is prevented through the core-sheath structure.
Owner:SHAANXI UNIV OF SCI & TECH

Water treatment agent for oilfield reinjection water and preparation method of water treatment agent

The invention relates to the technical field of water treatment, and discloses a water treatment agent for oilfield reinjection water and a preparation method thereof. The water treatment agent for oilfield reinjection water is obtained by copolymerization of sulfonic imidazoline quaternary ammonium salt modified quinoline, Mannich base modified chitosan, acrylic acid and sodium hypophosphite. The water solubility and corrosion inhibition of imidazoline are improved through quaternization modification of imidazoline, quaternary ammonium salt imidazoline can be adsorbed on the metal surface, the corrosion rate is reduced, the quaternary ammonium salt imidazoline serves as a surface active agent, the infiltration and dispersion effects are achieved, and the descaling rate is increased; the sulfonic acid group improves the temperature resistance and prevents the generation of gel, and the strong hydrophilicity of the sulfonic acid group enables a molecular chain to fully stretch in water, so that the scale inhibition performance is improved; mannich base is introduced into chitosan, the acid solubility and temperature resistance of chitosan are improved, the coordination chelation effect of chitosan is enhanced through the conjugation effect of aromatic rings, and the corrosion inhibition effect is improved; various functional groups play a synergistic effect, so that the corrosion and scale inhibition effect is further enhanced.
Owner:XIAN SHANGYAN PETROCHEMICAL CO LTD

Device for preparing three-dimensional fiber aerogel through airflow turbulence assisted centrifugal spinning

PendingCN119571480Adisordered windingRealize continuous pumpingNew-spun product collectionFilament/thread formingFiberSpinning
The invention discloses equipment for preparing three-dimensional fiber aerogel through airflow turbulence assisted centrifugal spinning, and belongs to the technical field of centrifugal spinning.The equipment comprises a cross beam support, a high-speed centrifugal module, an airflow assisting module, a liquid supply module and a continuous collection module, and the high-speed centrifugal module comprises a high-speed motor, a ceramic bearing and a needleless spinning cup; the high-speed motor provides centrifugal force needed by spinning, spinning holes are formed in the cup wall of the needleless spinning cup, the continuous collecting module is located below the needleless spinning cup, the air compressor is communicated with the air path outlet rotating rod through the air path channel, and during centrifugal spinning, the intelligent injection pump pumps spinning liquid in the injector into the needleless spinning cup through the liquid conveying pipe; the air path outlet rotating rod ejects stable air flow to form turbulent flow, the fibers thrown out through the spinning holes are further stretched and wound under the turbulent flow effect, and finally the fibers are deposited in a three-dimensional structure and fall onto the continuous collecting module to be continuously collected. A high-voltage electric field and high temperature do not need to be applied, and the production efficiency is improved.
Owner:HARBIN INST OF TECH +1

Temperature-adjustable polyamide fiber stretcher

The utility model relates to the field of fiber stretching machines, and discloses a temperature-adjustable polyamide fiber stretching machine which comprises a base, supporting plates are fixedly connected to the front side and the rear side of the top end of the base, a transmission roller is rotationally connected to the inner wall of the right side of each supporting plate, and a driven roller is rotationally connected to the outer wall of the left side of each supporting plate. An adjusting assembly is fixedly connected to the outer wall of the rear side of the transmission roller and comprises a transmission wheel, the front end of the transmission wheel is fixedly connected to the rear side of the transmission roller, a sliding block is slidably connected to the inner wall of the transmission wheel, the rear side of the bottom end of the sliding block is arranged to be an inclined cambered surface, and a limiting block is fixedly connected to the inclined cambered surface of the bottom end of the sliding block. According to the polyamide fiber stretching device, the driven wheel, the belt and the adjusting assembly are used in cooperation, the diameter of the transmission wheel can be rapidly changed by rotating the crank, and therefore the rotating speed of the transmission wheel can be controlled, the stretching rate of fibers can be rapidly controlled, and accurate regulation and control over polyamide fibers are achieved.
Owner:HANGZHOU CHENGJIA CHEMICAL FIBER CO LTD

Rehabilitation device for preventing foot drop of hemiplegic patient

The invention discloses a rehabilitation device for preventing foot drop of a hemiplegic patient, the rehabilitation device comprises a sole supporting plate and a shank supporting plate, the heel part of the sole supporting plate is movably connected with the bottom of the shank supporting plate through a first spherical shaft device, and one side of the sole supporting plate is provided with a second spherical shaft connecting device; a third spherical shaft connecting device is arranged on the other side of the second spherical shaft; by combining a plurality of structures such as the sole supporting plate, the shank supporting plate, the first spherical shaft device, the second spherical shaft connecting device and the third spherical shaft connecting device, the angle between the sole supporting plate and the shank supporting plate is accurately adjusted through a computer program stored on a computer readable storage medium; according to the technical scheme, ROM training of double-lower-limb massage training can be carried out on a paralyzed patient, and according to the training basis, the product is used for assisting the patient in carrying out joint flexion and joint stretching activities of feet, so that joint capsules and tendons around joints are fully stretched.
Owner:刘梦婷

High-voltage pre-charging relay

The invention discloses a high-voltage pre-charging relay, which belongs to the technical field of relays and comprises a relay body, the relay body comprises a shell and a base, a mounting frame, an electromagnet, a spring, an armature, a static contact and a movable contact are arranged in a cavity formed by the shell and the base, and an arc extinguishing mechanism is arranged between the static contact and the movable contact. The arc extinguishing mechanism comprises a plurality of sleeves and grid pieces, a connecting rod is movably connected between every two adjacent sleeves, and a blowing mechanism is arranged below the arc extinguishing mechanism. According to the invention, when the static contact and the movable contact in the relay are separated, the electric arc is captured by the grid pieces with smaller spacing distance, and then the distance between the grid pieces is increased; the arc is stretched more sufficiently among the grid plates, the length of the arc is increased, the temperature of the arc is effectively reduced, heat generated by the arc can be dispersed on a larger area due to larger gaps, cooling of the arc is accelerated, the risk of arc reignition caused by local overheating is avoided, and the service life is prolonged.
Owner:ZHONGHUI RUIDE ELECTRONICS (WUHU) CO LTD

Urban landscape water eutrophication monitoring and purifying equipment

The invention provides urban landscape water eutrophication monitoring and purifying equipment, and belongs to the technical field of water purification. Comprising a mounting main rod, a mounting floating plate, a water body purification assembly and an intelligent monitoring assembly, wherein the center of the mounting floating plate is arranged outside the mounting main rod in a sleeving manner through a through mounting opening; when the water body purification assembly treats a water body to be repaired, the light reaction tank is utilized, and the light reaction tank can decompose eutrophication related substances such as organic pollutants and algae in the water body through a photocatalytic reaction; the drug release mechanism can release chemical agents in a targeted manner, adjust the pH value of the water body and kill harmful microorganisms; the submerged plant main body can absorb nutrient elements such as nitrogen, phosphorus and the like in the water body, meanwhile, a habitat is provided for aquatic animals, the ecological environment of the water body is improved, the problem of eutrophication of the water body can be solved from multiple angles through the multi-mode combination, and the purification effect is more thorough.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA

Sweeping roller adjusting mechanism

The utility model relates to the technical field of printing equipment, and provides a leveling roller adjusting mechanism which comprises a shell and is characterized in that a pair of mounting plates is mounted in the shell, gaps exist between the shell and the mounting plates, a first arc-shaped groove and a second arc-shaped groove are formed in the side wall of each mounting plate, and the first arc-shaped groove and the second arc-shaped groove are arranged in the shell. The device further comprises rotating plates installed in the gap and rotationally arranged, a flattening roller and a stretching roller which move along the paths of the first arc-shaped groove and the second arc-shaped groove are connected between the rotating plates, and a first roller wheel corresponding to the flattening roller is further connected to the installation plate. The sweeping roller and the stretching roller are driven by the rotating structure to move along the paths of the first arc-shaped groove and the second arc-shaped groove, the stretching roller drives materials to be far away from the first roller wheel, meanwhile, the sweeping roller drives the materials to be close to the first roller wheel for pressing, and synchronous stretching and sweeping of the materials are achieved. The synchronous action ensures that the materials are fully stretched before being flattened, so that the flattening effect is improved.
Owner:WUXI LONGCHUANG PRINTING TECH

Intelligent rehabilitation pillow

The intelligent rehabilitation pillow comprises a pillow body, a pressure detection assembly and a pneumatic head support are installed on one side of the top of the pillow body, and an air hole penetrating to the bottom of the pillow body is formed in the inner bottom of the pneumatic head support; the bottom of the pillow body is fixedly connected with a flat plate, the flat plate is communicated with the air hole, and an opening and closing electromagnetic valve is installed at the communicated position of the flat plate and the air hole. A shoulder height adjusting air bag is fixedly connected to one side of the top of the flat plate in an embedded mode, the shoulder height adjusting air bag communicates with the flat plate, and the outer surface of the shoulder height adjusting air bag is fixedly wrapped with a soft cushion. By means of the air supply and exhaust assembly, the industrial timer, the flat plate, the flat pipe, the shoulder height adjusting air bag and the soft cushion, the patient can be assisted in increasing the shoulder height, lifting the jaw of the patient for a set time length and fully stretching and exposing the neck, the patient is helped to adapt to the body position in the operation process in advance, and rehabilitation of the patient is facilitated.
Owner:HUBEI UNIV OF CHINESE MEDICINE

A bio-based coordination type foam dust suppressant as well as a preparation method and application thereof

PendingCN122503085AEven and long-lasting coverageSolve the problem of difficult wetting
A bio-based coordination-type foam dust suppressant, its preparation method, and its application belong to the field of dust control technology. The bio-based coordination-type foam dust suppressant comprises the following components in parts by weight: 10-30 parts sodium alginate, 1-8 parts α-hydroxycarboxylate, 0.2-2 parts coordination intermediate stabilizer, 6-20 parts lauryl alcohol, 3-15 parts dodecyl vinyl ether, 2-5 parts ethylene glycol laurate, 1-2 parts isopropyl myristate, 2.5-10 parts dodecyl diethylene glycol ether, 1-10 parts dodecyl carboxylate, and 50-200 parts water. The bio-based coordination-type foam dust suppressant of this invention possesses coordination charge regulation capability, good biodegradability, and excellent foam stability, enabling efficient dust suppression.
Owner:SHANDONG DONGHUA TECH CO LTD

Solution coagulation molding method and long fiber spinning method using natural high molecular

ActiveCN116163025Bhigh strengthDense sectionThioureaSulfite salt
The application discloses a solution containing natural macromolecule and a coagulation molding method. The fiber stream obtained by wet spinning of the solution containing natural macromolecule is coagulated and molded through at least one coagulation bath. The solution containing natural macromolecule contains metal hydroxide and an additive selected from at least one of urea, zinc oxide and thiourea. Bicarbonate or bisulfite or a combination of bicarbonate and carbonate or a combination of bisulfite and sulfite is used as a component of the coagulation bath. The low-cost, green, efficient, non-toxic, harmless and inexpensive inorganic salt solution does not contain strong acid and organic solvent, and can be used to prepare long fibers with circular cross section and excellent mechanical properties. The long fibers have smooth surface, softness and luster. In the coagulation bath, the bicarbonate and carbonate or the bisulfite and sulfite can be easily separated and recovered.
Owner:GANNAN NORMAL UNIV

High-strength high-plasticity FeNiAl eutectic high-entropy alloy and preparation method thereof

According to the high-strength and high-plasticity FeNiAl eutectic high-entropy alloy and the preparation method thereof, through the collaborative design of B microalloying, homogenization, cross cold rolling deformation and medium-temperature heat treatment optimization, a fine and uniform eutectic lamellar structure and a high-density dislocation structure are formed in a plate, the brittleness brought by an as-cast coarse structure is effectively relieved, and the high-strength and high-plasticity FeNiAl eutectic high-entropy alloy is obtained. The tensile strength and the yield strength are remarkably improved, meanwhile, high ductility and fracture resistance are kept, and the performance anisotropy caused by the rolled texture is further weakened. The technological process is simple, parameters are easy to control, and the method is suitable for industrial amplification application and is suitable for high-temperature structural parts, molds, impact load components and other scenes with high requirements for comprehensive mechanical properties of materials.
Owner:FUZHOU UNIV

Induced film forming type concrete surface layer protection material and protection method thereof

The invention relates to the technical field of concrete protection, in particular to an induced film forming type concrete surface layer protection material and a protection method thereof.The protection method comprises the steps that a mineralizing agent and self-repairing capsules are added into concrete to be evenly mixed for use; coating the inducing layer solution on the surface of the template; the mixed concrete is poured into the formwork; and the surface of the poured concrete is coated with a polydimethylsiloxane material. The mineralizer is migrated from inside to outside under the action of an induction layer solution on the surface of the concrete formwork, mineralization and film formation are induced, the penetration depth can be increased, an erosion medium transmission channel can be filled, and meanwhile the interface bonding capacity with a hydrophobic layer can be improved through active groups in an induction layer; when the surface layer is damaged in service, the self-repairing capsule is influenced by pH, and the released protective material is migrated to the surface layer for repairing; the surface layer protection material can greatly improve the ability of the concrete to resist external erosion media, and provides repair when the surface layer protection fails, so that the long-acting durability of the concrete is ensured.
Owner:ZHONGLU JIAOKE TECHNOLOGY CO LTD

A pea peptide, its preparation method and application

This invention discloses a pea peptide, its preparation method, and its application, belonging to the technical field of plant polypeptide preparation and application. A mixture of sodium bicarbonate and sodium alginate is sprayed onto pea protein powder, and then dried at 70-80℃ for 3-5 hours. The dried pea protein powder is mixed with water to obtain a mixed solution, which is then heated to 45-55℃. Alkaline protease is added for enzymatic hydrolysis, and papain is added to the hydrolysate for further hydrolysis. After hydrolysis, enzyme inactivation is performed. The hydrolysate is filtered, concentrated, and spray-dried to obtain the pea peptide. The pea peptide prepared by this invention has a high recovery rate, low free amino acid content, and more than 85% of the molecules with a molecular weight less than 600 Da. It also exhibits high enzymatic hydrolysis efficiency, short hydrolysis time, and good antioxidant activity.
Owner:SHANDONG HENGXIN BIOTECH CO LTD

Automatic deviation rectifying device of casting machine for PVA (polyvinyl alcohol) embroidery film production

The utility model relates to the technical field of PVA (polyvinyl alcohol) film production, in particular to an automatic deviation rectifying device of a casting machine for PVA embroidery film production, which comprises a workbench, supporting legs arranged on the lower side of the workbench, rubber pads arranged on the lower sides of the supporting legs, a supporting frame arranged on the upper side of the workbench, a first support arranged on the rear side of the supporting frame, and a second support arranged on the rear side of the first support. A motor is arranged on the right side of the supporting frame, a second rotating shaft and guide plates are arranged on the inner side of the supporting frame, the motor and the spraying machine are controlled to work through the control panel, the motor drives the second rotating shaft to drive a film, the film is sprayed with needed materials through the spraying machine, the two guide plates are clamped on the two sides of the winding drum, and the film is guided by the guide plates to complete automatic deviation correction. A winding drum is reached; a guide plate and a limiting device are arranged, so that the device can be used for correcting the deviation of films with different widths; and by arranging the fixing assembly, the effect that the winding drum can be replaced very conveniently is achieved.
Owner:SHANXI ANHUA BIOTECHNOLOGY CO LTD

A cable with a torsion-resistant structure

The present invention relates to the field of cable technology, and proposes a cable with an anti-torsion structure, comprising an outer layer, a plurality of conductors arranged inside the outer layer, a fastening ring, a bucket-shaped sleeve and a sliding stretching assembly, a fastening assembly arranged between the fastening ring and the outer layer, the bucket-shaped sleeve fixedly connected to the fastening ring, one side of the plurality of conductors extending from the outer layer, the area of ​​the conductor located outside the outer layer being set as a stretching section, the stretching section extending into the bucket-shaped sleeve, a stretching reset structure arranged between the inside of the bucket-shaped sleeve and the plurality of stretching sections, the stretching section of the conductor extending from the bucket-shaped sleeve, and a sliding stretching assembly arranged between the plurality of conductors and the bucket-shaped sleeve. The above technical scheme solves the problem that when the cable conductor in the prior art is used to power an electronic device that needs to be moved and flipped, the movement of the electronic device easily causes the plurality of cable conductors to twist and become entangled.
Owner:四川金力电缆集团有限公司

Barrel bag capable of controlling number of fruiting mushroom buds of mushroom sticks and matched production process

The invention relates to the technical field of edible mushroom cultivation, in particular to a barrel bag capable of controlling the number of mushroom buds of mushroom sticks and a matched production process, the barrel bag comprises a barrel body and a sealing opening, a plurality of corresponding mushroom outlets are formed in the side wall of the barrel body, the barrel body and the sealing opening are made of light-proof materials, and the mushroom outlets are made of transparent materials; a production process for controlling the number of fruiting mushroom buds of the mushroom sticks adopts the barrel bag and comprises the following production steps: 1, preparing a substrate: stirring the substrate sawdust, the bran and the gypsum according to a ratio, adding water, and stirring for about 40 minutes; 2, bagging and sterilizing: bagging the substrate through an automatic bagging machine to obtain mushroom sticks; 3, cooling and inoculating; 4, culturing and puncturing; according to the method, the number of the mushroom buds is quantitatively controlled at a fixed point, each mushroom bud can obtain relatively balanced growth conditions, resource waste and excessive competition are reduced, and therefore health and stability of the whole growth environment are promoted.
Owner:SHANDONG AIZE FUJI BIOLOGICAL TECH CO LTD

Cervical spondylosis thermal therapy medicine pillow

The utility model discloses a cervical spondylosis thermal therapy medicine pillow in the technical field of medicine health care equipment, which comprises a pillow inner, a square pillow is fixedly connected to one side of the pillow inner, an air bag sheet is fixedly mounted in the pillow inner, a connecting wire is mounted at one end of the pillow inner in a penetrating manner, an air pipe is connected to one end of the pillow inner in a penetrating manner, and a heating wire is mounted in the air pipe. One end of the air pipe is connected with the air bag piece, through the air release valve, the air pipe, the one-way valve, the air bag ball, the pillow inner and the cervical vertebra cushion area, according to the requirement of a user, the air bag ball is pressed and inflated, the interior of the air bag piece can expand, and the pillow inner can be driven to be pressurized through expansion of the air bag piece; the cervical vertebra cushion area can be well attached to the cervical vertebra curvature of a user all the time, and the using effect of the device is improved.
Owner:ZIGONG TRADITIONAL CHINESE MEDICINE HOSPITAL

A conditioning acrylic acid suspension thickener, preparation method, composition containing the same, preparation method and application

The present invention discloses a conditioning acrylic acid suspension thickener, a preparation method, a composition containing the same, a preparation method and an application thereof, wherein the composition comprises: (a) 0.01 to 15% of a conditioning acrylic acid suspension thickener; (b) 10 to 30% of a detersive surfactant; (c) 0.01 to 5% of a conditioning agent; and (d) the balance is an aqueous carrier, all based on the total weight of the composition. The composition of the present invention has the characteristics of good conditioning, good ion resistance, stable performance, etc., and is suitable for use as a shampoo.
Owner:WANHUA CHEM GRP CO LTD

Cable with anti-torsion structure

The invention relates to the technical field of cables, and provides a cable with an anti-torsion structure, the cable comprises an outer surface layer, a fastening ring sleeve, a bucket-shaped sleeve and a sliding stretching assembly, the outer surface layer is internally provided with a plurality of conductors, the fastening assembly is arranged between the fastening ring sleeve and the outer surface layer, the bucket-shaped sleeve is fixedly connected to the fastening ring sleeve, and the sliding stretching assembly is arranged between the bucket-shaped sleeve and the outer surface layer. One side of each conductor extends out of the outer surface layer, the area, located on the outer side of the outer surface layer, of each conductor is provided with a stretching section, the stretching sections extend into the bucket-shaped sleeve, stretching reset structures are arranged between the interior of the bucket-shaped sleeve and the stretching sections, the stretching sections of the conductors extend out of the bucket-shaped sleeve, and sliding stretching assemblies are arranged between the conductors and the bucket-shaped sleeve. According to the technical scheme, the problem that a plurality of cable conductors are easily twisted and entangled together due to movement of electronic equipment when the cable conductors supply power to the electronic equipment needing to be moved and overturned in the prior art is solved.
Owner:四川金力电缆集团有限公司