408results about How to "Good elasticity" patented technology

The invention discloses a high-temperature-resistant polymer thickening agent for an oil field fracturing fluid as well as a preparation method and application of the thickening agent. The preparation method of the thickening agent comprises the following step: polymerizing acrylamide, other olefin monomers, an initiating agent and a chain transfer agent in an aqueous solution by virtue of a solution process, wherein the weight ratio of acrylamide to the other olefin monomers to water is (10-20):(6-18):(62-84); and the other olefin monomers are selected from one or more, preferably two or three, of anionic olefin monomers, cationic olefin monomers or non-ionic olefin monomers. According to the high-temperature-resistant polymer thickening agent disclosed by the invention, free radicals are generated by using an aqueous solution catalyst process so as to ensure that the monomers are subjected to ternary polymerization or quaternary polymerization to form the anionic high molecular polyacrylamide polymer with the molecular weight of 4,000,000-8,500,000. After the thickening agent is crosslinked with a crosslinking agent, the thickening agent can be used for tolerating high temperature of more than 210 DEG C, and has the advantages of good crosslinked gel elasticity, strong sand carrying capacity, anti-shearing performance, salt resistance, no residues and the like.

The present ivnention relates to a high-strength ultrafine fibre imitation leather. It is made up by using sea-island ultrafine fibre base cloth through processes of impregnating with polyurethane, extracting treatment and after-finishing. The described base cloth is a double-layer or more than double-layer composite base cloth formed from sea-island composite fibre woven fabric and non-woven fabric which are combined together by means of needling process or cohesive process, then said invention makes the composite base cloth undergo the processes of impregnating with polyurethane, hardening, extracting 'sea' component in the solvent capable of removing 'sea' component from sea-island fibre to obtain semifinished product, widening forming, mellowing, dyeing, grinding or sticking film so as to obtain the invented product.

The invention discloses medicinal sustained-release hydrogel as well as a preparation method and an application thereof. Monodisperse medicament-containing calcium alginate microspheres are prepared by adopting a high-pressure electrostatic sessile drop method, to realize direct encapsulation of growth factors and keep the activity of medicaments; and the medicament-carrying calcium alginate microspheres are put into the netlike structure of the hydrogel to realize sustained release of the medicaments. The matrix of the hydrogel contains carboxymethyl chitosan and polyvinyl alcohol, the volume ratio of the carboxymethyl chitosan solution to the polyvinyl alcohol solution is n: (6-n), 0<n<=4, and the release rate of the medicaments is controlled through different volume ratios.

The invention provides an EVA composite foam material and a preparation method thereof. The EVA composite foam material comprises the following components in parts by weight: 50-90 parts of an ethylene-vinyl acetate copolymer, 0-30 parts of a polyolefin thermoplastic elastomer, 0-30 parts of ethylene propylene diene monomer, 0-20 parts of a filler, 0.7-2.5 parts of a tasteless crosslinking agent, 1-8 parts of a foaming agent and 5-10 parts of a deammoniation agent. The EVA composite foam material is free of ammonia gas flavor and peculiar smell, good in elasticity and good in physical property. The preparation method of the EVA composite foam material comprises the following steps: (1) weighing the components of the EVA composite foam material; (2) pouring all the components excluding the tasteless crosslinking agent, the deammoniation agent and the foaming agent into an internal mixer for mixing; (3) adding the crosslinking agent, the deammoniation agent and the foaming agent into the mixed materials for mixing; (4) pouring the obtained mixture into a granulator for granulation and then foaming to obtain the EVA composite foam material free of ammonia flavor.

The invention provides a terylene camouflage waterproof cloth, which is made by the following steps: 170 T terylene cloth is printed with camouflage patterns, then is double-face coated with special PU soft glue, and then is hot-conglutinated with PVC surface material. The terylene camouflage waterproof cloth has the advantages of high strength, good elasticity, desirable resistance to tension and good flexibility, as well as favorable waterproof performance, which are all seen in the PVC surface material; furthermore, the terylene camouflage waterproof cloth has the capacity for being made into garments as of the terylene fabric, and the fabric cloth thus manufactured has the functions of good strength, waterproof performance, resistance to ageing and sea water; therefore, the fabric cloth can be applied to manufacture underwater operation suits or waterproof articles, and enjoy a great variety of application fields.

The invention relates to a combined dough kneading machine, which comprises a kneading device and a kneading device arranged in sequence; The beating device; the beating device includes a plurality of rods for telescopic movement and towards the center of the bottom of the cylinder; the dough kneading device includes a first hollow spherical roller arranged under the cylinder and a fixed distance sleeved in the first hollow The second hollow spherical drum in the spherical drum; the inner wall of the first hollow spherical drum is evenly equipped with a plurality of cylinders and kneading rods driven by the cylinders; the second hollow spherical drum is provided with a plurality of dough The through hole through which the rod penetrates; the inner wall of the second hollow spherical roller is provided with a plurality of protrusions at intervals; the lower part of the first hollow spherical roller is provided with an arc-shaped supporting plate that cooperates with the lower part of the first hollow spherical roller.

The invention relates to a hardly-foamed one-component polyurethane sealant, belonging to the technical field of sealants. The sealant is prepared from the following raw materials in parts by weight: 30-60 parts of a polyurethane pre-polymer, 0-50 parts of a filling material, 0-30 parts of a plasticizer, 0.2-0.9 part of a catalyst and 0.3-1 part of a bonding force enhancer. The sealant has stable storage and good workability, is not easy to foam even under a high-humidity and high-temperature environment, has good mechanical properties and strong bonding force after curing, and is particularly suitable for the elastic bonding of glass and metal base materials.

The invention discloses a high elastic silicon gel filling material for breast implants. An A component and a B component are mixed, and cross-linking agents are added into the mixing of the A component and the B component to form the gels with a semi-interpenetrating network structure through catalytic cross bridging; the A component is a linear siloxane polymer with a general formula I and the B component is a linear siloxane polymer with a general formula II. The filling material of the invention preferably solves the problems of low elasticity, unnatural hand feeling and uneasy regulation of softness and shape maintenance of common gels of breast implants by using the semi-interpenetrating network structure, thus obtaining the gels with natural characteristics and like body fat; the breast implants filled with the gels has good elasticity, soft and natural hand feeling and can keep better natural shapes after being implanted into human bodies.

The invention discloses a high orientation graphene aerogel and a preparation method thereof. The method comprises the steps of first preparing a dispersion liquid of graphene or graphene oxide, placing the dispersion liquid of graphene or graphene oxide in a container with an electrode, obtaining a high orientation graphene or graphene oxide dispersion liquid through an additional electric field orientation method, continuing to maintain an electric field effect, performing freeze freezing in liquid nitrogen, and obtaining the high orientation graphene aerogel after freeze drying or supercritical drying. The high orientation graphene aerogel is high in porosity, pores have a very high degree of orientation in an electric field direction, the pore size is controllable, and the high orientation graphene aerogel can be used for electrode materials of batteries and super capacitors, electron field emission sources, heat insulating and radiating materials, adsorbing materials, high flux water filter materials and catalyst carriers and the like.

The invention is concerned with a kind of sugarless gel soft candy and its produce method. It relates to gelatin, food grade Pullulan, sorbitol, maltitol, isomaltitol, Erythritol, sour material, flavoring essence, natural edible pigment and water. Mix gelatin and Pullulan to get liquid of glue, dissolve sorbitol, maltitol, isomaltitol and Erythritol to get sirup, and mix the liquid of glue and sirup to get mixed material liquid. Add sour material, flavoring essence and natural edible pigment into the mixed material liquid, pour, mold and dry till with 12 to 20 percent of water to get the production. The added stuffs have good effect to agglomerate with good elasticity for the compound using of gelatin and Pullulan. The production is not easy to becoming into the crystal for using sorbitol, maltitol and isomaltitol. This invention has great importance for the new production technology field for sugarless gel soft candy.

The invention discloses a coating for blades of a wind generation set, which is formed by polyurethane NEUKAPOL 1007, polyester ether NEUKADUR 1036, curing agents, auxiliaries, auxiliaries and titanium dioxide powder R930. Double-component polyurethane NEUKAPOL 1007 and double-component polyester ether NEUKADUR 1036 are chosen, the chosen polyurethane and polyester ether are low-viscosity resin with high hydroxyl values (respectively being 550-590 and 160-170), the resin is very small in molecular weight and can form coating films with high cross-linking density, the coating films have extra high surface hardness and excellent elasticity, bending resistance, elasticity and physical and mechanical performance and can avoid stress concentration, and therefore the coating films formed by the coating have good tensile strength, tearing strength and stone striking resistance, and service life of the wind generation set is ensured.

The invention discloses a production method for PTT (Poly Trimethylene terephthalate)/PET (Poly Ethylene Terephthalate) side-by-side composite elastic short fibers. The production method comprises the following steps of (1) compositing a raw material a, namely, modified PET and a material b, namely, PTT in a large-capacity two-channel composite spinning assembly after respectively passing through crystallizing and drying equipment, melting and extruding equipment and a spinning manifold, obtaining a strand with a side-by-side shape, and then obtaining a PTT/PET side-by-side composite elastic short fiber precursor c after spinning, circular blowing cooling, oiling, rolling and falling into a barrel; (2) feeding the precursor c into a packaging machine for packaging after bundling, drafting, oiling, tension heat setting, oiling, mechanical rolling, relaxation heat setting and cutting. According to the production method disclosed by the invention, since the special composite spinning manifold, the large-capacity two-channel composite spinning assembly and a multi-roller tension heat setting instrument device are adopted, the PTT/PET side-by-side composite elastic short fiber prepared by the production method has moderate elasticity, excellent hand feeling and good stretch elastic recovery.

The invention relates to a non-woven fabric and the manufacturing field of the non-woven fabric, and particularly relates to a high-elasticity non-woven fabric and manufacturing equipment of the high-elasticity non-woven fabric and manufacturing equipment. The non-woven fabric contains a middle fiber layer, an upper surface layer and a lower surface layer, and is characterized in that the middle fiber layer is formed by a thermoplastic polyurethane elastic body through a hot melting method; the upper and lower surface layers are made of wool fibers and/or wood pulp fibers. According to the high-elasticity non-woven fabric and the manufacturing equipment of the high-elasticity non-woven fabric, the manufacturing equipment comprises a hot melting device, a first transporting device, a gluing device, a high-pressure device and a molding device. The non-woven fabric woven by the equipment has the advantages of good elasticity, distinct gradation and convenience for manufacturing.

Disclosed herein are a silicone sponge and preparation method and use thereof. More particularly, disclosed is a silicone sponge comprising a polyurethane sponge impregnated with a silicone solution, preparation method thereof and functional products made from the silicone sponge. The silicone sponge has excellent air permeability and elasticity, and various useful properties.

The invention relates to a water-based elastic rubber paint and a preparation method thereof and belongs to the technical field of paint. The water-based elastic rubber paint comprises, by weight, components A and component B, the components A include 30-40 parts of waterborne polyurethane emulsion, 0.3-0.6 part of water-based dispersing agents, 3-6 parts of color paste, 3-5 parts of extinction powder, 5-10 parts of elastic powder, 2-5 parts of hand feeling auxiliaries, 0.2-0.5 part of wax powder, 0.2-0.4 part of flatting agents, 0.1-0.3 part of defoaming agents, 1-2 parts of hydrated magnesium silicate, 0.5-1 part of neutralization agents, 1-2 parts of cosolvent and 5-10 parts of deionized water, the component B includes hexamethylene diisocyanate (HDI) hydrophilic isocyanate, and the weight ratio between the components A and the component B is (8-12) :1. According to the water-based elastic rubber paint and the preparation method thereof, pure waterborne system raw materials are used for preparing the water-based elastic rubber paint, the water-based elastic rubber paint is excellent in hand feeling elasticity and resistant to ethyl alcohol scrubbing and RCA paper tape friction and can be rubbed by RCA paper tapes for 200 times.

The invention provides double-layer knitting stitch type fleece and a making method thereof. The double-layer knitting stitch type fleece comprises a surface layer, a middle layer and a bottom layer, wherein the surface layer is made of cotton yarn or cotton blended yarn, the middle layer is made of dacron or nylon, the bottom layer is made of dacron or blended yarn, the surface layer is connected with the bottom layer through the middle layer, and the bottom layer is subjected to fluffing finishing. The invention further provides the making method of the double-layer knitting stitch type fleece. The making method comprises the steps of forming the surface layer and the bottom layer with the knitting double-layer weaving method, connecting the surface layer and the bottom layer into a whole by means of the middle layer to form knitting double-layer gray fabric, and conducting functional after treatment on the knitting double-layer gray fabric to obtain the double-layer knitting stitch type fleece.

The present invention relates to a power transformer/inductor comprising at least one winding. The windings are designed by means of a high-voltage cable, comprising an electric conductor, and around the conductor there is arranged a first semiconducting layer, around the first semiconducting layer there is arranged an insulating layer and around the insulating layer there is arranged a second semiconducting layer. The second semiconducting layer is earthed at or in the vicinity of both ends (26₁, 26₂; 28₁, 28₂) of each winding and furthermore one point between both ends (26₁, 26₂; 28₁, 28₂) is directly earthed.

The invention discloses a manufacturing method of packaging box plates. The manufacturing method includes the steps of preparing materials, including the main material crop offcut; pouring wood chips, glue, and the crop offcut into a glue blender, and mixing well; laying, namely coating a veneer with a glue layer prior to laying the veneer on a steel plate, and making sure the glue side faces upside; placing the steel plate on a conveyor belt; evenly laying mixture on the veneer of the steel plate by a spreader; laying another veneer with the lower surface glued, on the mixture; pressurizing and solidifying, namely heating and pressurizing a laid plate blank in a hot press, at the temperature of 140-170 DEG C, holding the pressure for 6-10 minutes for solidification and forming; stripping and trimming, namely stripping the solidified plate and trimming the plate. Specifically, the materials include, by weight, 30-40% of the wood chips, 8-10% of the glue, and the balance of the crop offcut. The glue is dicyclopentadiene modified unsaturated polyester resin glue. Therefore, environment protection is achieved.

The invention relates to a physical foaming method of a high polymer material and a foaming product. The physical foaming method of the high polymer material comprises the steps that 1, a thermoplastic elastomer or a polyolefin material is prepared into special-shaped parison by using an injection molding machine, an extruding machine or a molding press; 2, the polyolefin parison is heated to produce cross-linking reaction, and the cross-linked polyolefin parison is obtained; 2, the thermoplastic elastomer parison or the cross-linked polyolefin parison is subjected to high-pressure infiltration in a pressure kettle with a supercritical fluid, then pressure relief is performed to normal pressure, and the supercritical fluid infiltrated parison is obtained; 4, the supercritical fluid infiltrated parison is arranged in a finished product mold, and in-mold foaming is performed according to the ratio of 1:1 to obtain the finished product foaming product. The supercritical fluid is utilizedas a physical foaming agent, and the low-specific-gravity, environment-friendly and non-toxic foaming material having excellent elasticity is obtained through a simple in-mold foaming process.

The invention provides a processing technique for silver carp meat sausages. The processing technique comprises the following main steps: raw material pre-treatment, meat mincing, seasoning adding, stuffing and rinsing, heating, and packaging and storage; through control for the added amount of the seasonings, the produced silver carp meat sausages are fine and smooth in taste, smooth and non-greasy, good in elasticity, compact in tissue and good in elasticity; through addition for green tea powder and control for the dosage, the preservation time of the sausages can be delayed, and due to the unique green tea fragrance, fishy smell is reduced. The production process is simple and practicable; the silver carp meat sausages produced by the process have dry and complete casing surfaces, good slicing property, slight green tea fragrance, the advantage of a good nutritional value, and a wide market prospect.

Provided is a solderable elastic electric contact terminal. The solderable elastic electric contact terminal includes a tube-shaped insulating elastic core, an insulating non-foam rubber coating layer adhered to the insulating elastic core to surround the insulating elastic core, and a heat-resistant polymer film having one surface adhered to the insulating non-foam rubber coating layer to surround the insulating non-foam rubber coating layer, and another surface integrally provided with a metal layer.

The invention relates to a synthetic polyisoprene rubber plug for an injection and a preparation method thereof. The synthetic polyisoprene rubber plug for the injection comprises the flowing components in percentage by weight: 61.24-76.22 percent of isoprene rubber, 15.24-24.49 percent of pottery clay, 0.30-0.55 percent of stearic acid, 6.1-7.35 percent of white carbon black, 1.52-5.42 percent of titanium dioxide, 0.15-0.24 percent of carbon black and 0.46-0.61 percent of peroxide vulcanizing agent. According to the synthetic polyisoprene rubber plug disclosed by the invention, due to the adoption of a peroxide vulcanizing system, an isoprene rubber product is prepared from a raw material without sulfur; the final rubber plug product cannot generate a sulfur-containing substance; and the produced isoprene rubber product can be directly contacted with medicines for use and has the advantages of stable performance, puncture resistance, no falling scraps, favorable elasticity, no needle extracting leaked liquid, favorable sealing property and the like.

The invention provides a novel halogen-free flame retardant composite material. The novel halogen-free flame retardant composite material comprises the following components in percentage by weight: 28% to 64.5% of polypropylene, 10% to 20% of thermoplastic polyurethane elastomer, 5% to 10% of bulking agent, 15% to 25% of halogen-free flame retardant agent, 5% to 15% of flame retardant synergist, and 0.5% to 2% of coupling agent, wherein the total percentage of the components by weight is 100%. The invention also aims at providing a preparation method of the novel halogen-free flame retardant composite material. The novel halogen-free flame retardant composite material has the advantages that the preparation technology is simple, the mechanical property is good, the high temperature-resistant property and flame-retardant property are realized, the efficiency is high, the clean and environment-friendly effects are realized, and the novel halogen-free flame retardant composite material can be widely applied to the fields of automobiles, household parts and accessories, wires and cables, and the like.

The invention relates to an electric vibration massage sole which comprises a latex massage plate, an electric vibrator, a partition plate, an EVA (ethylene vinyl acetate) sole and a rubber bottom plate. The EVA sole is arranged on the rubber bottom plate and is provided with a vibrator plastic casing, a battery is arranged inside the vibrator plastic casing and is connected with a power switch arranged at the heel site of the EVA sole through a wire to form a circuit which is controlled by the power switch in a unified way, the electric vibrator is also arranged inside the vibrator plastic casing and arranged above the batteries, the partition plate is arranged between the electric vibrator and the battery, and the latex massage plate is arranged above the vibrator plastic casing and is provided with a plurality of salient points according to the acupoints at a foot of a human body. The electric vibration massage sole provided by the invention has the characteristics of good elasticity and air permeability and high cushioning force, and has foot massage function.

The invention discloses a molybdenum disulfide-graphene aerogel electrode material preparation method. The preparation method is specifically implemented according to the following steps: step one, adding molybdenum trioxide and graphene oxide into a certain amount of distilled water, and ultrasonically dispersing by using an ultrasonic cleaner and uniformly mixing the molybdenum trioxide and graphene oxide and the distilled water to obtain an intermediate solution; step two, adding the sulfur source in the intermediate solution obtained through the step one, stirring to uniform mixing to obtain the mixed solution; step three, transferring the mixed solution obtained in the step two to the polytetrafluoroethylene hydrothermal lining, and placing the lining in an oven, performing hydrothermal reaction for a certain time at a certain temperature, and naturally cooling the reactant to the room temperature after the reaction is finished; and step four, washing the reactant after cooling, separating and precipitating, taking out the separated precipitate, and freezing and drying at a vacuum condition to obtain the molybdenum disulfide-graphene aerogel electrode material. The preparation process is simple and the cost is low.

The invention relates to an environment-friendly elastic rubber sealing strip for fireproof doors/windows, which is composed of the following components in parts by mass: 25-58.5 parts of ethylene propylene diene monomer rubber (EPDM), 5-8 parts of carbon black, 8-10 parts of flame retardant, 5-15 parts of paraffin oil, 10-15 parts of filler, 1-3 parts of vulcanizing agent, 1-2 parts of accelerator, 5-10 parts of thermoplastic elastomer, 2.5-4 parts of foaming agent, 3-6 parts of zinc oxide and 1-2 parts of sulfur. The thermoplastic elastomer is polyoxyethylene (POE). The foaming agent is oxo-bis-benzenesulfonyl hydrazide (OBSH). The environment-friendly elastic rubber sealing strip for fireproof doors/windows has the characteristics of favorable elasticity, no toxicity and environment friendliness.

The invention discloses a rubber composition. The rubber composition comprises the following components in parts by weight: 5-10 parts of fluorosilicone rubber, 10-20 parts of acrylonitrile-butadiene rubber, 15-30 parts of styrene-butadiene rubber, 10-20 parts of isoprene rubber, 10-20 parts of white carbon black, 2-5 parts of calcium sulfate, 5-10 parts of stearic acid, 1-3 parts of sulfur, 1-3 parts of a vulcanization accelerator, 2-3 parts of zinc oxide and 1-2 parts of an anti-aging agent. Shoe soles prepared form the shoe sole rubber composition provided by the invention have abrasion resistance and good elasticity.

The invention relates to the technical field of a PVC (polyvinyl chloride) product and production process thereof, particularly to a PVC film or PVC artificial leather coated with a TPU (thermoplastic polyurethane) film and production process thereof. The PVC film coated with the TPU film comprises a PVC film layer on which a TPU layer is attached through glue or the manner of hot pressing. The PVC artificial leather coated with the TPU film comprises a PVC artificial leather layer on which is a TPU layer is attached through glue or the manner of hot pressing. According to the invention, the harm of the PVC product to people can be greatly reduced and the properties of elasticity, tenacity, wear resistance and cold resistance of the PVC product are improved; the PVC product is not easy to crack and fracture; and the cost for making cases, building materials and shoe materials can also be greatly reduced.

The present invention relates to a plastic chip for PCR, having polymer valves, and more particularly to a plastic chip for PCR, having polymer valves, which can perform the temperature cycling of a small amount (nanoliter) of a sample in a microchamber at a constant temperature sensitively to temperature gradient. The inventive plastic PCR chip can perform a PCR even with a small amount of a sample through a reduction in the size of a PCR chamber included in the chip, compared to the prior PCR chip. Also, as the surface area of the PCR chamber is increased, the time taken for heating and cooling can be decreased, thus reducing reaction time. In addition, the inventive plastic PCR chip is mounted with one or more PCR chambers, so that it can amplify various genes at the same time.

The invention relates to the field of water proofing of metal roofs and particularly discloses a flash rust-proof acrylic roof waterproof coating which is prepared from, by weight, the following raw materials: 30-50 parts of an acrylic emulsion, 25-60 parts of antirust slurry, 1-5 parts of a plasticizer, 0.3-5 parts of a dispersing agent, 0.1-1 part of a defoaming agent, 0.1-1 part of a base material wetting agent, 0.1-2 parts of an anti-flash rust additive, 1-4 parts of a film forming assistant, 3-10 parts of water, 0.01-0.5 part of cellulose ether, 0.1-0.5 part of a bactericide, 0.01-0.5 part of a coupling agent and 0.01-0.5 part of a pH adjusting agent. The flash rust-proof waterproof effect of the roof waterproof coating with a flash rust-proof function is longer lasting than that of acommon metal roof waterproof coating, the anti-ultraviolet effect is good, and the service life of a base material is prolonged. The waterproof coating has high elongation rate, good elasticity, strong base layer deformation resistance, the capability of shielding cracks, water proofing and breathability.