40 results about "Butyronitrile" patented technology

This invention belongs to the field of polymer protective materials technology, and discloses a nitrile glove modified with bio-based itaconic acid ester rubber latex and compounded with an antibacterial agent, as well as its preparation method. The glove uses carboxylated nitrile butadiene latex as the matrix, introduces a bio-based itaconic acid ester rubber latex pretreated with a silane coupling agent as a reactive interfacial compatibility component, and uses nano-silver-zinc composite particles and reactive quaternized chitosan to form an immobilized composite antibacterial phase. The glove is prepared through blending, impregnation molding, surface immobilization treatment, gradient vulcanization, and post-treatment. The resulting glove possesses excellent flexibility, low-temperature embrittlement resistance, oil resistance, and long-lasting antibacterial properties, and the antibacterial components are not easily migrated or detached, making it suitable for food processing, medical auxiliary protection, and low-temperature operations.

The application discloses a preparation method of an antistatic butyronitrile glove and belongs to the technical field of glove preparation. The method comprises the following steps: step 1: mixing carboxyl butyronitrile latex, PVC-VE emulsion, sodium hydroxide, zinc oxide, a multifunctional additive, sulfur, an accelerator, deionized water and a surfactant, uniformly stirring the mixture to obtain a mixed slurry; step 2: immersing a clean glove model into a coagulant solution at 80 DEG C, vertically dripping, taking out and drying, then immersing the glove model into the mixed slurry, vertically dripping and drying, twice immersing the slurry, vertically dripping and drying again, then performing leaching, edge curling and vulcanization, and finally performing leaching, cleaning and drying to obtain the butyronitrile glove. The multifunctional additive independently synthesized in the preparation process of the butyronitrile glove can significantly improve the comprehensive performance of the product.

This invention relates to the field of liquid bag film preparation technology, and in particular to a lightweight polyethylene liquid bag film and its preparation method. The lightweight polyethylene liquid bag film comprises the following raw materials: polyolefin matrix resin, 3-(4-vinylphenoxy)-1-propylene, (3-buten-1-yl) acrylate, calcium lignosulfonate, carboxylated butadiene-acrylonitrile latex, trimethylolpropane triacrylate, initiator, crosslinking agent, accelerator, antioxidant, and slip agent. In the preparation process, 3-(4-vinylphenoxy)-1-propylene and (3-buten-1-yl) acrylate form a long-chain branched structure in the system, improving the tensile strength of the finished product. Simultaneously, trimethylolpropane triacrylate is added to increase the entanglement between molecular chains, and calcium lignosulfonate and carboxylated butadiene-acrylonitrile latex are added to dissipate impact energy and inhibit crack propagation. Therefore, the resulting polyethylene liquid bag film also exhibits significant impact resistance.

This utility model relates to the field of low-metal polycrystalline silicon nitrile butadiene nylon textured glove production technology, and particularly to a hot air setting device for producing low-metal polycrystalline silicon nitrile butadiene nylon textured gloves. It includes two parallel crossbeams, with support legs installed at both ends of the bottom of the crossbeams. Multiple spaced-apart first sprockets are arranged on the side of the two crossbeams closest to each other, with a drive shaft coaxially mounted on each sprocket and rotatably connected to the crossbeams. A first chain is also provided on the side of the two crossbeams closest to each other, meshing with the first sprockets, and a drive component is also provided on the drive shaft. Multiple spaced-apart mounting seats are installed on the side of the first chain furthest from the crossbeams. This utility model uses the support seats to place the gloves, and during feeding, a push mechanism causes the gloves to retract, thereby causing a push rod to act on the gloves, allowing them to detach from the support seats. This achieves automatic feeding and unloading of the gloves after hot air setting, reducing labor costs.

The application relates to the technical field of cable materials, and discloses a high-strength oil-resistant cable material and a preparation method thereof; the preparation method comprises the following operation steps: mixing polyether polyurethane resin and butyronitrile rubber at 70-90 DEG C for 3-6 minutes, adding modified microcapsules, an antioxidant, an ultraviolet absorber and a lubricant to continue mixing, and extruding and granulating at 120-160 DEG C to obtain the high-strength oil-resistant cable material. In the scheme, in order to solve the problem that the oil resistance of the cable material is affected by the poor compatibility of the polyphosphate flame retardant with the polyurethane resin due to the strong hydrophilicity of the polyphosphate flame retardant, the polyphosphate flame retardant is made into hydrophobic coated aluminum polyphosphate, and the microcapsules are prepared by taking the hydrophobic coated aluminum polyphosphate as a core material, so that the network compactness of the microcapsules is improved, and the oil resistance and the strength of the cable material are improved.

The utility model provides a kind of improve nitrile latex recovery device.The improve nitrile latex recovery device includes: mounting bracket;Main rail, the main rail is installed at the top of mounting bracket, the top of the main rail is equipped with moving assembly, the top of the moving assembly is close to the position of front and back and is equipped with multiple movable structures, the bottom of each movable structure is equipped with mould seat;Mounting assembly, the mounting assembly is respectively installed at the front and back of main rail, one side of the mounting assembly is equipped with arc washer, and the bottom of each arc washer is provided with dust groove.The utility model provides the improve nitrile latex recovery device, by the design, namely adding washer this innovative initiative, utilize gravity effect to promote the centralized fling and recovery of excess latex, realize under the premise of not changing glove quality, improve the utilization of latex, increase the output of glove, finally reach the purpose of reducing unit product cost.

The application relates to a manufacturing method for manufacturing a metal model for a nitrile dip product and a hand mold thereof, and comprises the following steps: respectively die forming metal plates into an upper palm part and a lower palm part, welding the upper palm part and the lower palm part after splicing to form a palm part; forming a metal pipe into an arm part, splicing and welding the arm part on the palm part; welding a base on the arm part to form a hand mold; performing sand blasting treatment on the hand mold; and forming a corrosion-resistant hardening film layer on the outer surface of the hand mold through physical treatment or chemical treatment. The application has the effect of improving the corrosion resistance against chlorine ions.

The utility model discloses a kind of automatic pipe cutting machines for table and chair, including base, the base top middle part is provided with cutting assembly, the cutting knife bottom is provided with limiting component, the limiting component includes U-shaped fixing frame, the base top is opened with the guiding sliding slot for the sliding adaptation of U-shaped fixing frame along longitudinal direction, the U-shaped fixing frame front end is fixedly connected with handle, the device is by damper, reset spring and the limiting component that the pressing plate of rubber preloading pad and detachable U-shaped fixing frame are set in hydraulic plate bottom, realize efficient pipe fixing, when working, steel pipe is placed on U-shaped fixing frame, then hydraulic pressing plate is driven by hydraulic cylinder and pressed down, pressing plate first contacts pipe by rubber preloading pad, the elasticity and surface protrusion of butyronitrile rubber are used, and flexible adaptation different pipe diameter, material pipe, stable preloading avoids sliding, ensure that the cut is smooth, improve subsequent table and chair assembly precision, maintain pipe structure integrity.

The application discloses a nitrile glove with an antistatic function and a processing method thereof, and relates to the technical field of nitrile gloves. The antistatic nitrile glove comprises the following raw materials in parts by weight: 50-60 parts of nitrile latex, 0.5-1 part of biomass conversion material, 0.5-1.5 parts of polythiophene conductive polymer, 0.2-1 part of ionic liquid, 1.5-2 parts of dispersing agent, 1.5-2 parts of sulfur, 0.8-1 part of accelerator, 1.2-1.5 parts of corrosion-resistant agent, 1-2 parts of antioxidant, 0.5-1.5 parts of glycerol, 2-3 parts of zinc oxide and 0.3-1 part of stearic acid. The nitrile glove with the antistatic function has excellent antistatic performance, mechanical performance and corrosion resistance.

The application relates to the technical field of polyvinyl chloride, and discloses a wear-resistant and aging-resistant PVC material, which is filled and modified by using glycidyl acrylate grafted ABS as a compatilizer, carboxyl-terminated butyronitrile rubber as a toughening agent and wear-resistant modifier, and polyvinyl chloride. The epoxy groups in the glycidyl acrylate grafted ABS can react with the carboxyl groups at the ends of the butyronitrile rubber, so that the butyronitrile rubber has better compatibility with the polyvinyl chloride, and the notched impact strength and wear resistance of the PVC material are improved. The hindered phenol-lanthanum complex stabilizer contains a hindered phenol structure which can capture free radicals generated in the oxidation process, inhibit the free radical chain reaction, and overcome the decomposition of the polyvinyl chloride; meanwhile, the lanthanum ions in the complex can react with hydrogen chloride generated by the thermal decomposition of the polyvinyl chloride, so that the phenomenon that the hydrogen chloride degrades the polyvinyl chloride is reduced.

The application discloses a preparation method of 2,2-diisopropylpropionitrile and belongs to the technical field of food additive intermediate synthesis. The method comprises the following steps: S1, adding sodium amide, a solvent and a catalyst into a reactor, stirring until being uniformly dispersed, and obtaining a reaction system; S2, uniformly mixing 2,3-dimethylbutyronitrile and 2-bromopropane to form a premix; dropping the premix into the reaction system, continuing to stir for 0.5-1 hours after dropping is completed; S3, adding deionized water into the reaction system to quench the reaction; after quenching the reaction, cooling and stirring the reaction system, layering after standing, and reserving an upper organic phase; S4, transferring the organic phase into a distillation device, performing normal pressure distillation, and separating the solvent; the normal pressure distillation temperature is 60-90 DEG C; performing vacuum distillation on the organic phase after the normal pressure distillation, collecting a distillate, and obtaining a product. The prepared 2,2-diisopropylpropionitrile has high yield and high purity.

The utility model discloses a kind of jacks with waterproof sealing structure, comprising: oil bottom cylinder and big oil cylinder, the upper surface of oil bottom cylinder is fixedly installed with water drainage sealing mechanism, the outer surface lower end of big oil cylinder is provided with threaded portion, so that big oil cylinder can be installed in water drainage sealing mechanism by the threaded portion of outer surface thread, so that threaded installation big oil cylinder can be communicated with water drainage sealing mechanism. The application is designed by water drainage sealing mechanism and butyronitrile rubber ring, so that it can ensure that the piston rod that slides into big oil cylinder keeps dryness, and then can avoid the corrosion problem of component caused by moisture, thereby prolong the service life of metal component, and the outer ring ring and inner ring ring in outer ring seat are also provided for big oil cylinder to form stepped sealing structure when sliding into, significantly improve the sealing property of entire sealing structure, can effectively prevent hydraulic oil leakage and moisture, dust and other impurities outside enter jack interior.

The application discloses a rubber compound, a rubber cloth, a low-temperature-resistant oil containment boom and a preparation method of the low-temperature-resistant oil containment boom, wherein the rubber compound is composed of the following components and contents: 60-70 parts of butyronitrile rubber, 10-20 parts of cis-butadiene rubber, 8-12 parts of polyisoprene rubber, 7-14 parts of chlorinated polyethylene rubber, 3-6 parts of zinc oxide, 1-3 parts of stearic acid, 8-12 parts of dioctyl sebacate, 55-70 parts of a filler, 3-7 parts of a silane coupling agent, 10-14 parts of a mixed accelerator and 1-4 parts of a rubber antioxidant. The rubber compound is used for further manufacturing the rubber cloth, and the rubber cloth is further used for manufacturing the low-temperature-resistant oil containment boom. The low-temperature-resistant oil containment boom product has not only good oil resistance of the ordinary oil containment boom, but also special cold resistance of the low-temperature-resistant oil containment boom, and meets the use requirements under the extremely cold conditions. The product is used by users, and the effect is generally good.

The application discloses a preparation method of double-modified butyronitrile latex. The butyronitrile latex is subjected to hydrogenation and sulfonation double modification, the thermal stability and oil resistance of the butyronitrile latex are greatly improved, the comprehensive performance of the butyronitrile latex in a harsh environment is significantly improved, and the double-modified butyronitrile latex with high-temperature resistance and oil resistance is obtained. The double-modified butyronitrile latex prepared by the method can simultaneously consider the stability in high-temperature and high-oil environments, and can provide long-term stable sealing effect under complex working conditions such as oil and gas wellbore. The double-modified butyronitrile latex prepared by the method can significantly improve the reliability and application range of wellbore sealing materials, and is particularly suitable for wellbore plugging and sealing in oil and gas field development and pressure management operation of gas storage ring control.

The present application relates to the technical field of high polymer adhesive, in particular to a kind of easy-to-separate film flat paste adhesive film and its preparation method and application.Easy-to-separate film flat paste adhesive film, including adhesive layer and the protective film arranged on at least one side surface of the adhesive layer;The adhesive layer includes the following components by weight fraction: 100 parts of polyester TPU, 10~30 parts of liquid butyronitrile rubber, 5~15 parts of maleic anhydride graft, 2~10 parts of silicate filler and 0.1~2 parts of antioxidant;In the maleic anhydride graft, the grafting rate of maleic anhydride is ≥0.8%;The material of the protective film is linear low density polyethylene.The flat paste adhesive film of the present application can realize the high-strength, durable bonding of flexible finishing material and rigid substrate, and the adhesive layer and protective film of flat paste adhesive film have good film separation effect, which is beneficial to efficient application in flat paste field.

The present application belongs to the technical field of conveying belt, and particularly relates to a coal mine underground flame-retardant aramid rope conveying belt and a preparation method thereof. The present application comprises an aramid framework formed by arranging a plurality of aramid ropes and a covering rubber coated on the outside of the aramid framework, the aramid ropes constituting the aramid framework are connected by intermediate rubber, and the aramid framework and the covering rubber are connected by intermediate rubber; the aramid ropes are treated by solvent immersion and ultraviolet lamp irradiation; the raw material components of the covering rubber contain epoxidized butyronitrile rubber; the raw material components of the intermediate rubber contain an adhesive; the adhesive is prepared by reacting dienyl bisphenol A diglycidyl ether and end hydrogen-containing fluorosilicone oil under the catalysis of a platinum catalyst and with gamma-(methacryloyloxy)propyl trimethoxysilane. The present application introduces intermediate rubber, which is combined with the aramid framework and the covering rubber, has high bonding strength, and prolongs the service life of the conveying belt.

The application discloses a kind of detection equipment and detection method of butyronitrile glove, belong to glove detection equipment and method technical field, comprising: tensile testing mechanism, the tensile testing mechanism includes fixed on workbench drive motor, the output shaft of drive motor is connected with the first lead screw shaft distributed along the length direction of bar-shaped groove, first nut screw is driven on the first lead screw shaft, first slider is installed on the top of first nut screw, push rod is installed at the top of first slider, and the one end of push rod penetrates through shell and extends to the outside of shell;First gear plate is fixedly installed on the push rod, and the top of first gear plate is engaged and driven by center rotating tooth with vertically distributed second gear plate.The application can solve if hidden multiple cracks appear in the middle section of glove, in the process of pulling rope, the middle end may break and fly, thereby bringing corresponding safety hazard to test personnel, which is not conducive to the safety of test operation.

This invention discloses a protective glove made of shea butter and an antibacterial agent modified with nitrile latex, and its preparation method. The glove uses carboxylated nitrile latex as the matrix, compounded with a silane coupling agent-modified composite natural oil and a nano-zinc oxide-chitosan composite antibacterial agent, and is prepared through an impregnation and vulcanization process. The product utilizes the synergistic effect of the natural oil and the antibacterial agent, achieving an antibacterial rate of ≥99.9%, while significantly improving the softness, wearing comfort, and aging resistance of nitrile gloves. This solves the problems of traditional nitrile gloves, such as stiffness, short antibacterial duration, and easy aging and cracking after long-term use. The process of this invention is simple and easy to industrialize, and the resulting product is suitable for food processing, household cleaning, and daily protection.

This invention discloses a magnetically detectable nitrile glove and its preparation method, relating to the field of nitrile glove manufacturing technology. The raw materials include: carboxylated nitrile latex, modified magnetite magnetic particles, modified porous zein breathable microspheres, modified core-shell polysiloxane colored microspheres, sulfur, vulcanization accelerator, potassium hydroxide, and tributyl acetylacetate. In this invention, modified porous zein breathable microspheres are added, which can form stable breathable channels in the glove film, improving the glove's water vapor permeability and air permeability, solving the problems of stuffiness and poor breathability of ordinary nitrile gloves. Simultaneously, the modified microspheres form a hydrophobic protective and ionic bond anchoring layer on their surface, preventing clogging of their own pores and agglomeration with magnetic particles, and firmly bonding with the nitrile latex without detachment or exudation. While significantly improving breathability, this method maximizes the preservation of the glove's tensile strength, tear resistance, and other mechanical properties.

Provided are nitrile gloves comprising manganese dioxide, that may have improved permeation resistance, especially improved permeation resistance against hydrogen peroxide. Provided also are methods for preparing the nitrile gloves and improving the permeation resistance of nitrile gloves.

The application relates to the technical field of construction materials, in particular to a resin concrete and application of the resin concrete in electrolytic cells. The epoxy resin concrete comprises the following components: a phenolic epoxy resin; an epoxy-terminated hydrogenated butyronitrile rubber; a modified alicyclic amine curing agent; a graded spherical silicon carbide micro powder; and a silicone defoaming agent; wherein the graded spherical silicon carbide micro powder is composed of coarse powder, medium powder and fine powder; the coarse powder accounts for 60% of the total mass of the graded spherical silicon carbide micro powder, the medium powder accounts for 25%, and the fine powder accounts for 15%. The phenolic epoxy resin without ester bonds is used in cooperation with the epoxy-terminated hydrogenated butyronitrile rubber with a saturated main chain to solve the problems of easy degradation under high-temperature acid and alkali environments and insufficient weather resistance of traditional toughening agents, the graded spherical silicon carbide micro powder is used to improve the mechanical properties of the electrolytic cell, and the construction fluidity requirement is met.

The present application relates to a kind of high flame-retardant oil-resistant PVC compositions and its preparation method and application, it includes the following weight parts of raw material components: polyvinyl chloride resin 100 parts;Plasticizer 60-75 parts;Cold resistance modifier 5-8 parts;Heat stabilizer 5-10 parts;Calcium carbonate 15-25 parts;Flame retardant synergist 15-25 parts;Butyronitrile rubber powder 5-20 parts;Toughening agent 3-5 parts;Ultraviolet absorber 0.2-0.8 parts.By the synergistic cooperation of each component, both high flame-retardant (oxygen index>32) can be met, and also through oil test (100 ℃×24h), while having excellent low temperature performance (-45 ℃).

The application provides a preparation and application of a reactive core-shell nano-toughening agent for epoxy resin. The reactive core-shell nano-toughening agent has a three-layer core-shell structure, the inner core is introduced by rubber (nitrile-butadiene rubber, styrene-butadiene rubber, polybutadiene) emulsion containing butadiene segments, the outer shell is a crosslinked copolymer obtained by copolymerization of a vinyl monomer, a reactive monomer and a crosslinking agent, and an interface transition layer with controllable thickness exists between the core-shell interface. The provided reactive core-shell nano-toughening agent forms a uniform segment physical entanglement transition layer through a pre-dispersion process, the thickness of the transition layer is controlled by the polarity of the monomer and the pre-dispersion time, the core-shell interface is combined through intermolecular interaction, the stress transmission efficiency of the interface is enhanced, and the toughening effect on the epoxy resin is improved. When the provided reactive core-shell nano-toughening agent is applied to the toughening of the epoxy resin, the reactive functional groups provided by the reactive monomer in the shell structure can react with the epoxy groups or curing agents in the epoxy resin matrix to form a strong covalent bond interface, thereby improving the stability and compatibility of the toughening agent in the epoxy resin matrix. By improving the interaction between the interface of the core-shell toughening agent itself and the interface of the epoxy matrix, the technical problems of poor compatibility of the existing core-shell toughening agent with the epoxy resin, low toughening efficiency and deterioration of the mechanical properties of the matrix after toughening can be effectively solved, and the application range of the epoxy resin in the high-end engineering field can be expanded.

1. Name of the product in this design: Glove Packaging Box (Multipurpose Nitrile). 2. Purpose of this design: for glove packaging. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key features: the front view.

The invention provides a composite nano-material and a method for determining the content of bound acrylonitrile in a butyronitrile latex polymerization process. The method comprises the following steps: pretreating a butyronitrile latex sample by adopting the composite nano material, then collecting a Raman spectrum of the butyronitrile latex, carrying out data pretreatment, extracting a characteristic peak, and calculating to obtain the content of bound acrylonitrile in the butyronitrile latex. The method can be used for rapidly, accurately and nondestructively measuring the content of the combined acrylonitrile in the polymerization process of the butyronitrile latex.

The utility model relates to nitrile rubber latex processing technical field especially is a kind of nitrile rubber latex special anti-sticking type delivery pump, including anti-sticking type delivery pump body and connecting pipe, the left and right ends of anti-sticking type delivery pump body are fixedly connected with connecting pipe, the right side of anti-sticking type delivery pump body is equipped with protective shell, the left side of protective shell is equipped with the protective cover located in the left side of anti-sticking type delivery pump body, the inside thread connection of protective shell and protective cover has the bolt that is set in front and back symmetry, the outside fixed connection of anti-sticking type delivery pump body has the connecting rod that is set in front and back upper and lower four orientations, in the utility model, under the support of protective shell, damping rod and shock-absorbing spring of four orientation settings can carry out shock absorption to the central anti-sticking type delivery pump body simultaneously from multiple orientations, substantially improve the protection effect to anti-sticking type delivery pump body, effectively avoid the abrasion of vibration to anti-sticking coating and junction.

The utility model provides a kind of oven for optimizing the gram weight of butyronitrile glove production, belong to butyronitrile glove production technical field.The utility model includes box and the heating controller, safety valve installed on box, the inside of the box is provided with processing bin, the front side of the box is provided with box door, the rear side of the heating controller is connected with several heating pipes, the inner bottom wall of the processing bin is equipped with hot air circulation device;Temperature is even in processing bin by hot air circulation device, the revolution and rotation of glove are driven in combination with positioning column, the even heating of each part of glove is guaranteed, to solve the problem that traditional oven temperature unevenly affects glove gram weight uniformity;Hot air acts on glove from inside and outside simultaneously, the hot air acting mode of this inside and outside combination makes glove surface and inside synchronous drying, prevent surface to form hard shell and hinder internal moisture evaporation, reduce the problem that gram weight is not same due to moisture residue difference.

The utility model relates to polymeric reaction kettle technical field discloses a kind of butyronitrile latex continuous polymerization reaction kettle, including two outer kettle shell, the outer kettle shell is externally fixedly connected with fixed ring one, the rear side top of fixed ring one is fixedly connected with connecting column, the top of connecting column is fixedly connected with ration feeding mechanism, the outer wall of outer kettle shell is fixedly connected with circulation valve one.The utility model in, through cylinder structure drive ration measuring cup, baffle, sliding connecting block, sliding support plate work, after starting cylinder, cylinder will pull ration measuring cup, when ration measuring cup moves to just below material hopper, part of material in material hopper will enter ration measuring cup, subsequently cylinder promotes ration measuring cup to advance, baffle synchronously moves and blocks material in material hopper, when ration measuring cup is pushed to the appropriate position of discharging base, the material in ration measuring cup will be put into inner kettle shell, to realize the effect of ration feeding of material.

The application relates to the technical field of high polymer materials, and discloses a low-temperature-resistant air brake hose and a preparation method thereof. The preparation steps are as follows: S1: butyronitrile rubber is uniformly mixed with an inner rubber compound plasticizer and an inner rubber compound antioxidant, an inner rubber compound reinforcing agent and an inner rubber compound additive are added and uniformly mixed, an inner rubber compound vulcanizing agent is added and uniformly mixed, the inner rubber compound is extruded, and an inner rubber layer is obtained; S2: a reinforcing layer material is wrapped outside the inner rubber layer, and a reinforcing layer is obtained; S3: terpolymer ethylene-propylene rubber is uniformly mixed with an outer rubber compound plasticizer, a flame retardant and an outer rubber compound antioxidant, an outer rubber compound reinforcing agent and an outer rubber compound additive are added and uniformly mixed, an outer rubber compound vulcanizing agent is added and uniformly mixed, an outer rubber compound is obtained, the outer rubber compound is extruded and wrapped outside the reinforcing layer, and an outer rubber layer is obtained; vulcanization and shaping are carried out, and the air brake hose is obtained. The air brake hose prepared by the scheme has excellent mechanical properties, low-temperature resistance and flame retardance.