307 results about "Nylon material" patented technology

The invention belongs to the technical field of melt traction, and discloses a nylon melt traction device for a screw extruder, which comprises a limiting guide rail mounted at the tail end of a cooling water tank, and further comprises a support part, a traction part and a traction part, the clamping traction assembly is mounted on the supporting piece; according to the scheme, the two sets of clamping plates are placed on the two sides of the drooping nylon melt, the two sets of clamping plates are pressed to move oppositely under limiting of the supporting pieces so that the nylon melt located between the two sets of clamping plates can be clamped, cooling water is prevented from adhering to the ribs, and then an operator drags the melt into the cooling water tank through the clamping plates; and finally, the bottom of the supporting piece is buckled into the limiting guide rail and fixed by the elastic clamping pin, then the two sets of clamping plates are separated under the elastic force action of the telescopic liquid pumping mechanism, meanwhile, an operator can hold the cooled nylon material with the hand and feed the nylon material into a pelletizer, and then the situation that melt is accumulated is avoided.

The invention relates to the technical field of polyamide fiber manufacturing, and provides a porous polyamide fiber preparation method which comprises the following steps: respectively feeding skin layer polyamide, a cross-linking agent and core layer polyamide into a mouth mold; the pore-foaming agent is decomposed to generate gas, and the gas forms a uniform closed-pore structure in situ on the core layer chinlon; in the fusion cavity, the cross-linking agent is sandwiched between the core layer chinlon and the skin layer chinlon to generate a chinlon material with a skin-core chinlon cross-linked structure; after being pulled out through a spinning nozzle, the chinlon material is bundled through an oiling roller, and after oiling, chinlon fiber tows are formed; the polyamide fiber tows are subjected to graded stretching and winding forming, and finished polyamide fiber products are obtained. Therefore, a uniform closed pore structure is formed in the core layer chinlon through the gas decomposed by the pore-forming agent; a skin-core chinlon cross-linked structure with chemical bonding and low-heat-conduction network functions is formed between the core layer and the skin layer through a cross-linking agent. The thermal conductivity and the weight of the polyamide fiber are remarkably reduced, meanwhile, the polyamide fiber has high strength, and the light and warm-keeping polyamide fiber is obtained.

The invention relates to the field of high polymer material modification, and discloses a low-toxicity nylon material modification composition and a preparation method and application thereof, and the composition comprises the following components by weight: 70-90% of bio-based polyamide; 2-10% of surface functionalized nano-chitosan, wherein a beta-cyclodextrin derivative is grafted on the surface of the surface functionalized nano-chitosan to adsorb harmful small molecules; the 3-15% of double-layer wall material natural polyphenol microcapsules are used for slowly releasing natural polyphenols with anti-oxidation and skin soothing effects; and 0.1-0.5% of an interface synergistic locking agent to enhance the stability of the functional components in the matrix. The preparation method comprises the following steps: mixing the components, and carrying out melt blending granulation through a double-screw extruder. The cytotoxicity of the nylon material is remarkably reduced, the nylon material is endowed with active skin-friendly characteristic and lasting functionality, and the nylon material is suitable for preparing long-term skin contact products such as watchbands and the like.

The invention discloses a flame-retardant nylon material which comprises 50-70 parts of PA (polyamide), 1-5 parts of a toughening agent, 3-5 parts of a P-series flame retardant, 3-5 parts of an N-series flame retardant and 10-20 parts of a modified polysilsesquioxane flame retardant, and the modified polysilsesquioxane flame retardant is prepared from raw materials including silsesquioxane A, a compound B and a catalyst in an alkaline environment. The silsesquioxane A comprises at least one epoxy group D, and the compound B contains a phosphorus element P and a nitrogen element N and at least comprises a halogen end group X. The flame-retardant nylon material provided by the invention is excellent in flame retardant property and dielectric property, has good processability and mechanical property, greatly improves the anti-cracking property and anti-dripping effect of the flame-retardant nylon material, and is safe and environment-friendly.

The utility model provides an explosion-proof composite pipe for a medical water jet scalpel. The explosion-proof composite pipe comprises an inner pipe, and a woven reinforcing layer, a protective layer and a high-temperature-resistant layer which are sequentially arranged on the outer side of the inner pipe from inside to outside, the inner pipe is made of a nylon material; the woven reinforcing layer is made of a bulletproof fiber material; the protective layer is made of a TPU (Thermoplastic Polyurethane) material; according to the design, the bulletproof fiber material is adopted as the woven reinforcing layer to be arranged on the outer side of the inner pipe, the explosion-proof capacity of the inner pipe is greatly improved, the protective layer made of the TPU material is arranged outside the woven reinforcing layer for protection, and the TPU protective layer has the characteristics of high elasticity, high tear resistance and the like and is arranged on the outer side of the woven reinforcing layer, so that the explosion-proof capacity of the inner pipe is greatly improved. The high-temperature-resistant layer is additionally arranged on the outer side of the woven reinforcing layer for protection due to the fact that the high-temperature-resistant performance of the TPU material is low, and the bursting pressure of the composite pipe can meet 36250 PSI.

The utility model belongs to the technical field of material processing, and discloses a nylon grinding roller production device which comprises a nylon material mixing tank, a stirring assembly and a blocking assembly, the stirring assembly comprises a driving piece, a driving shaft and a stirring piece, the stirring piece is connected to the driving piece through the driving shaft, and the blocking assembly is arranged on the driving shaft. The driving part is connected to the nylon material mixing tank and used for stirring nylon materials, the blocking assembly comprises a connecting rod, a sliding block, a baffle and a limiting rod, the baffle and the sliding block are connected to the driving shaft through the connecting rod, the limiting rod is connected to the nylon material mixing tank, and the limiting rod is connected to the driving shaft. According to the nylon material mixing tank disclosed by the invention, the internal space of the nylon material mixing tank is selectively enlarged and shrunk according to own requirements, so that a worker can select a driving mode of the driving piece according to the quantity of nylon materials, and the problem that the nylon materials are sputtered all around when being stirred is further avoided, so that the energy consumption during operation of the nylon material mixing tank is effectively reduced.

This utility model provides a raw material mixing device for nylon composite material production, belonging to the field of nylon material production technology, to solve the problems of existing raw material mixing devices for nylon composite material production, such as inconvenience in movement, easy collision during handling, and high temperature on the tank surface causing burns. It includes a mounting base, a mixing tank, a protective frame, an adjustment knob, moving rollers, a moving component, and a protective component. The mixing tank is fixedly mounted on the top of the mounting base; the protective frame is vertically slidably connected inside the mounting base; the adjustment knob is located on one side of the mounting base; four sets of moving rollers are provided, and the four sets of moving rollers are located at the bottom of the mounting base; the moving component is located at the bottom of the mounting base; and the protective component is located on the upper part of the mounting base. This utility model has the advantages of flexible movement, safe protection, and ease of use.

The utility model provides a kind of inner bushing of steering gear guard against abnormal sound, belong to the technical field of automobile steering gear, the inner bushing of steering gear guard against abnormal sound has steering gear, steering transmission shaft, steering column and steering gear guard, it is characterized in that, two circular clamping grooves are set in the inner wall of the lower end of steering gear guard, inner bushing is installed in steering gear guard, inner bushing is nylon material, inner bushing is set in the outside of steering transmission shaft, the inside of inner bushing is set with arc, and contact with steering transmission shaft line;The utility model is used to solve the technical problem that the abnormal sound of existing steering gear guard can be caused in the process of steering vehicle.

The utility model relates to a wind turbine set blade lightning current transmission unit wear-resisting device which comprises an L-shaped installation frame and an installation plate fixedly arranged on a vertical plate of the installation frame, the installation plate is arranged on the side, away from a transverse plate, of the vertical plate, and a V-shaped included angle is formed between the vertical plate and the upper portion of the installation plate. The upper portion of the vertical plate and the upper portion of the mounting plate are each fixedly provided with a support, a wear-resisting support is fixedly arranged on the outer side of the upper end of each support, and a wear-resisting block is mounted on each wear-resisting support. The support is made of a glass fiber resin material, the wear-resisting block comprises a wear-resisting inner core located in the wear-resisting block and a wear-resisting layer arranged on the side face of the wear-resisting inner core in a sleeving mode, the wear-resisting inner core is made of a brass material, and the wear-resisting layer is made of a nylon material. According to the wind turbine set blade lightning current transmission unit wear-resistant device, release of induced electricity and lightning current generated in the operation process of a wind turbine set is ensured, effective and reliable grounding is also ensured, the consumption of spare parts is reduced, the technical barrier of imported spare parts is avoided, and the purposes of reducing cost and improving efficiency are effectively achieved.

The utility model belongs to the technical field of wires and cables, and provides an anti-strand-jumping cable, which comprises at least three core wires, a belting layer and an outer sheath, the core wires at least comprise two specifications, each core wire comprises an insulating layer arranged on the outermost side, zigzag bulges are formed on the outer wall of each insulating layer, the zigzag bulges are arranged at intervals along the axial direction of the core wires, and the outer sheath is arranged on the outer wall of each core wire. The core wire is at least meshed with the zigzag bulge of the other core wire; the belting layer is arranged outside the core wire, and the space between the core wire and the belting layer is filled with filler; and the outer sheath is arranged outside the belting layer. According to the utility model, the core wire is positioned in the outer sheath; secondly, installation and arrangement can be completely carried out according to conventional operation specifications in the process of integrated cabling, so that the difficulty of integrated cabling is reduced, the original arrangement mode can be kept even if the cable is longitudinally extruded or bent, and the strand jumping phenomenon is avoided; the three insulating layers are made of polyvinyl chloride and polyamide nylon materials, the weight of the cable is reduced, and the cable is light in weight.

The utility model relates to machining technical field especially relates to a lower mould for steel plate bending, including bottom plate, two riser, two side plates and a plurality of seven prism made of nylon material, two riser fixed in the left and right ends of bottom plate, two side plates fixed in the front and back ends of bottom plate, and riser, side plate and bottom plate enclose the box body with opening, the bottom surface of all seven prism is arranged in the box body parallel to side plate, and the side surface of seven prism abuts on the upper plate surface of bottom plate, and the adjacent side surface of this side surface abuts on the plate surface of riser, and seven prism itself has V type groove structure, and one edge of seven prism constitutes groove bottom, and the two edges closest and about center symmetry constitute groove mouth, and the groove mouth of V type groove is vertical upward, and bottom plate, riser and side plate are metal plate, under the premise of guaranteeing the overall structural strength of lower mould, can disperse bending stress, reduce the damage to steel plate, improve bending process efficiency and product quality.

The present application relates to a kind of MCA flame-retardant nylon material and its molded product that can eliminate the surface skin defect of molded product, and the MCA flame-retardant nylon material that can eliminate the surface skin defect of molded product includes the following raw material components by weight parts: 40~70 parts nylon resin, 5~13 parts MCA flame retardant, 10~40 parts reinforcing filler, 0.5~3 parts other auxiliary agent;Wherein, the nylon resin is the compound of nylon resin A and nylon resin B, and the weight percentage of the nylon resin A and the nylon resin B is 20:1~8:1;The nylon resin A is PA6 and / or PA66, and the nylon resin B is long carbon chain nylon with monomer carbon atom number >10.The MCA flame-retardant nylon material of the present application has good mold surface replication ability itself, and when skin piece is injection molded, no external mold temperature controller can be obtained without skin defect good appearance product, which can save energy and reduce consumption, and also can save mold temperature controller purchase cost for plastic product manufacturer and provide corresponding water and electricity cost of mold temperature.

The invention discloses a preparation method of a high-conductivity modified carbon fiber reinforced nylon material, and the preparation material comprises the following components: 69-79.5% of nylon 6, 0.5-1.5% of modified carbon fiber and 0.5-1.5% of other assistants. 20 to 30% of modified carbon fiber; and 0.5-1% of other auxiliary agents. The preparation method comprises the following steps: modifying a ferrocene material which is mostly used for a catalyst, accurately controlling a reaction sequence, carrying out amination treatment on carbon fibers, directionally grafting an asymmetric ferrocene derivative of which one end is carboxyl and the other end is an amino group protected by a photosensitive protective agent, and releasing an amino group protected by the photosensitive protective group through ultraviolet rays during processing, according to the present invention, the damage to the group during the traditional chemical deprotection is avoided, the exposed amino group reacts with the carboxyl group of the nylon 6 chain segment to form the firm covalent bond interface so as to substantially improve the interface bonding capacity, and the existence of the ferrocene derivative provides the conductive path on the interface so as to substantially increase the conductivity, the technical problem that the carbon fiber and nylon matrix interface bonding is weak and the conductivity is difficult to consider is solved.

The present invention relates to a slip tape for automotive weatherstrips that improves slipperiness while lowering the coefficient of friction and appropriately preventing or minimizing the generation of abnormal noise by forming a ring in the shape of a smooth circular loop on the outer surface, and fundamentally prevents the ring from coming off by knitting so that the loop-shaped ring is attached. The slip tape of the present invention is attached to the outer surface of the door belt weatherstrip and door glass weatherstrip of an automobile and includes a base film made of an olefin resin, an adhesive layer formed by applying an adhesive to the upper surface of the base film, and a ring knitted layer formed by attaching the lower surface to the upper surface of the adhesive layer and being made of multifilament yarn of polyester or nylon material, with a number of upper rings in the shape of a circular loop knitted on the upper surface so as to adhere closely to the outer surface of the automobile glass and protruding upward, and a lower ring knitted flat on the lower surface so as to attach to and support the upper ring.

The invention belongs to the technical field of high polymer materials, and particularly relates to a toughness-enhanced modified nylon material and application of the toughness-enhanced modified nylon material to a detachable seat. The modified nylon material is prepared from the following raw materials: nylon 66, a polyamide thermoplastic elastomer, a maleic anhydride grafted styrene-ethylene-butylene-styrene block copolymer and nano silicon dioxide, the maleic anhydride grafted styrene-ethylene-butylene-styrene block copolymer is used as a molecular bridging agent, and the nano silicon dioxide is used as an auxiliary agent. Maleic anhydride reacts with an amino-terminated group of nylon 66, and a block is compatible with a soft segment of the polyamide thermoplastic elastomer, so that a rigid framework of which the structure is nylon 66-molecular bridging agent-polyamide thermoplastic elastomer is formed; wherein the nano silicon dioxide is combined with a hydrogen bond of a soft segment of the polyamide thermoplastic elastomer, so that a three-dimensional elastic network with a nano silicon dioxide-polyamide thermoplastic elastomer-block structure is formed.

The application discloses a kind of photoresponsive self-repair antibacterial nylon materials and preparation method thereof.The material is modified nylon 6 polymer, aromatic Schiff base dynamic imine bond generated by condensation reaction of carboxyl benzaldehyde and p-phenylenediamine is embedded in its molecular main chain, which gives the material the ability of light-triggered self-repair without external heat source, and unexpectedly improves the mechanical properties and thermal stability of the material, the molecular chain end is bonded with antibacterial organic acid through amide bond, and the antibacterial organic acid is 2-methyl-4-(trifluoromethyl) thiazole-5-carboxylic acid.The preparation method adopts one-pot two-stage polymerization, after pressure opening ring prepolymerization, pressure relief vacuum is carried out to carry out deep condensation and end-capping, and the product is obtained by extrusion granulation and drying.The material can realize room temperature self-repair under natural light, and the antibacterial component is non-dissolution fixed.The application process is simple, the performance is adjustable, and can be used in the field of intelligent packaging, repairable antibacterial coating and biomedical materials.

The invention relates to the technical field of high polymer materials, in particular to a wear-resistant and high-temperature-resistant nylon material and a preparation method thereof. The composite material is prepared from the following raw materials in parts by weight: 20-50 parts of a nylon new material, 50-80 parts of a nylon recycled material, 15-25 parts of wear-resistant and high-temperature-resistant filler, 5-12 parts of a compatilizer and 3-5 parts of a processing aid, the wear-resistant and high-temperature-resistant filler is an inorganic filler containing a film coating layer; the inorganic filler is a mixture of at least two of sepiolite fiber, wollastonite powder and fumed silica; the film coating layer is prepared from aminopropyl heptaisobutyl cage-shaped polysilsesquioxane, methyl vinyl hybrid aryne resin and methyl hydrogen-containing polysilazane. The prepared product can keep stable performance in a long-term high-temperature environment, the abrasion resistance of the material is improved through the effects of hardness improvement, density optimization, interface strengthening and the like, abrasion is effectively reduced under the severe conditions of long-term high temperature, oil containing and the like, and the service life of the material is prolonged.

The application discloses a composite nylon material preparation method, which is prepared by blending modified polytrifluoropropyl methyl siloxane containing hydrophobic trifluoropropyl side chains with nylon 6, realizing nanoscale dispersion in a melt extrusion process, adding an epoxy functionalized silane coupling agent and an organic tin catalyst, forming a three-dimensional crosslinked network under the hydrophobic effect of the trifluoropropyl side chains and the water blocking effect of the three-dimensional crosslinked network in the extrusion process, effectively blocking the diffusion channel of water molecules, improving the moisture resistance of the material, maintaining the tensile property of the raw material at 92-95%, and enhancing the wear resistance and thermal stability of the material by modified nanosilica; the equilibrium water absorption rate is only 0.7-0.9%, the low-temperature resistance is improved by more than 25%, and the low-temperature resistance is far superior to the embrittlement temperature of traditional PA6, so that the nylon material modification method has the advantages of maintaining mechanical properties, water resistance and low-temperature brittleness.

The present invention relates to the field of halogen-free organophosphorus flame-retardant nylon, and in particular to a nylon composite material, and a preparation method therefor and a use thereof. Specifically, the nylon composite material disclosed in the present invention comprises: 65-82 parts of polyamide resin, 12-18 parts of a hypophosphite flame retardant, 10-50 parts of a reinforcing agent, 0.5-2 parts of hydrotalcite, 3-8 parts of boehmite, and 1-3 parts of PET resin. The present invention solves the problem of corrosion of organophosphorus flame-retardant nylon materials to silicone under high-temperature conditions, and provides an organophosphorus flame-retardant nylon composite material resistant to silicone corrosion under high-temperature conditions, having a high CTI value and meeting the UL94 V0 flame retardant rating.

The utility model belongs to the technical field of security protection vests, and particularly relates to a multifunctional security protection vest which comprises a protection vest body, a plurality of weapon bags are connected to the outer surface of the bottom end of the protection vest body in a sewing mode, and a first fixing frame is fixed to the outer surface of the right side of the middle of the protection vest body. A heart protection assembly is arranged on the inner surface of the upper right portion of the protection vest body, a mounting plate is fixed to the outer surface of the upper left portion of the protection vest body, a flashlight support is rotatably mounted at the front end of the mounting plate, a supporting assembly is mounted between the flashlight support and the mounting plate, and a second fixing frame is fixed to the front left portion of the middle of the flashlight support. Bandages are bonded and fixed to the middle of the protective vest body and the middle of the flashlight support, and the bandages are made of nylon materials. The heart protection vest has a good protection effect on the heart, the functionality of the protection vest is more comprehensive, and the practicability is higher.

This invention relates to the field of polymer materials technology, and discloses a low-temperature resistant and high-impact protective face shield material and its preparation method. The protective face shield material of this invention comprises the following raw materials in parts by weight: 55-70 parts of nylon 66, 5-15 parts of nylon 6, 5-12 parts of a low-temperature toughening agent, 4-10 parts of a high-temperature resistant additive, 0.5-1 part of oleamide, 0.2-0.5 parts of silane coupling agent 550, 0.2-0.5 parts of an antioxidant, and 0.5-1.5 parts of an ultraviolet absorber. The low-temperature toughening agent of this invention can improve the impact resistance of nylon materials in low-temperature environments, maintaining excellent impact strength even at low temperatures. The high-temperature resistant additive gives the nylon material excellent high-temperature thermal stability, avoiding problems such as softening deformation, yellowing cracking, and mechanical property degradation at high temperatures.

A sealing machine comprises a machine frame, a feeding assembly, a control assembly, a heating assembly, a heat dissipation assembly and a code spraying assembly, the feeding assembly, the control assembly, the heating assembly, the heat dissipation assembly and the code spraying assembly are arranged on the machine frame, a transition wheel assembly is arranged between the heating assembly and the heat dissipation assembly and comprises a fixing block fixed to the machine frame, and a sliding block is slidably connected into the fixing block; the sliding block is fixedly connected with a transition rotating wheel which is arranged outside the fixing block and used for conveying packaging bags, and the sliding block is made of reinforced nylon. The sliding block is made of the reinforced nylon material, compared with common nylon or metal materials, the reinforced nylon material has better abrasion resistance, impact resistance and self-lubricating performance, abrasion in long-term use can be reduced, and the service life is prolonged. Compared with an aluminum profile in a traditional sealing machine, the reinforced nylon is high in plasticity, the size accuracy is better during assembly and machining, assembly size errors are not prone to being generated when the reinforced nylon is assembled with the fixing block, the problem that parts are difficult to assemble is solved, and assembly convenience, conveying stability and equipment durability are improved.

The present application relates to a kind of thermoplastic elastomer composite and its preparation method and application.The thermoplastic elastomer composite includes the following weight parts of component: hydrogenated styrene-based elastomer 10~25 parts, thermoplastic polyurethane elastomer 10~31 parts, thermoplastic polyester amide elastomer 10~31 parts, compatibilizer 2~5 parts, mineral oil 10~30 parts, mineral filler 0~30 parts.The adhesion of the thermoplastic elastomer composite to the secondary coating of nylon material is good, and can effectively be stripped with nylon material after high-temperature baking, with little residual after stripping, so as to realize the good recycling of material.

The invention relates to the technical field of photovoltaic modules, in particular to a photovoltaic module with a sweeping function, which comprises a photovoltaic panel bracket, a photovoltaic panel is arranged on the inner side of the top of the photovoltaic panel bracket, a flow guide cleaning mechanism is fixedly connected to the front side of the photovoltaic panel, and a washing mechanism is fixedly connected to the rear side of the photovoltaic panel. The flow guide cleaning mechanism comprises a control assembly, the rear side of the control assembly is movably connected with a cleaning assembly, the flushing mechanism comprises a water storage tank, and the left side and the right side of the front side of the water storage tank are both fixedly connected with waste water recycling pools. According to the photovoltaic panel cleaning device, waste of water resources is reduced, environmental protection benefits are improved, a flow guide cleaning mechanism is ingenious in design, a columnar transmission rod and a crawler belt are driven by a double-shaft motor to conduct transmission, front-back reciprocating motion of a cleaning flow guide plate is achieved, and dirt and accumulated water on the surface of a photovoltaic panel are effectively scraped away in cooperation with nylon materials and triangular design at the bottom of the cleaning flow guide plate.

A secondary battery, includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator wherein the electrode assembly is wound; a can for accommodating the electrode assembly and an electrolyte; a finishing tape including a film layer comprising a nylon material and an adhesive layer for attaching the film layer to the electrode assembly, wherein the finishing tape at least partially surrounds the electrode assembly; and a cap assembly that seals the can.

The invention relates to the technical field of golf carts, in particular to a fully-closed cantilever type hub motor structure assembly for a golf cart, which comprises an outer hub, a hub frame, a spoke structure, a connecting seat and a motor group, and is characterized in that a clamping hook, a main clamping tooth and an auxiliary clamping tooth are respectively arranged on the surface of a tooth holder; according to the composite hub, the overall weight of a traditional metal hub is reduced through the light motor and hub structure, the weight is reduced by 40%-60% compared with that of an all-metal hub, the whole vehicle is assisted to achieve the light index of 15.5 kg, the motor serves as a driving source, the inner gear ring and the outer gear ring are driven in a gear transmission mode, the mode that a traditional brake pad generates friction force on the local portion to complete braking is improved, and the brake efficiency is improved. The instant locking effect is achieved in a multi-point locking mode, in addition, the bearing capacity of the unique five-clamp five-buckle structure can exceed the torque of a common knurling structure, it is guaranteed that power is still abundant when the electric bicycle runs on a 40-degree abrupt slope, and the situation of missing rotation is avoided; and the device is made of a nylon material, can absorb high-frequency noise and ground vibration caused by gear engagement, and improves the driving texture.

The application discloses a kind of self-reinforced nylon materials and preparation method thereof, and the self-reinforced nylon material contains the benzocyclobutane structure sensitive to force.By interface polycondensation method, the benzocyclobutane structure is introduced into nylon main chain.When the matrix material is subjected to destructive force, the benzocyclobutane structure unit undergoes ring-opening isomerization, and simultaneously reacts with the bifunctional group crosslinking agent in the matrix material, plays the crosslinking self-reinforcing role.The technical route of the application is simple, the required cost is low, and the prepared nylon material can be used in some engineering plastic application fields with harsh service conditions, and can reduce the risk of component failure.

The invention discloses a fluorescent nylon material and a preparation method and application thereof, and relates to the technical field of high polymer material preparation, the structural formula of the fluorescent nylon material comprises a structural unit derived from 1, 3, 6, 8-tetraaminopyrene and a structural unit derived from a nylon monomer. According to the fluorescent nylon material provided by the invention, the monomer compound and the nylon monomer are copolymerized, and the fluorescent compound can be uniformly dispersed in a nylon matrix, so that the nylon material is endowed with fluorescent performance. The fluorescent nylon material has the characteristics of high brightness, good stability, rich color and the like; the fluorescence quantum yield can reach 85% or above; the fluorescent property is excellent, and bright-colored fluorescence can be emitted under the excitation of ultraviolet light; the nylon has physical and mechanical properties similar to those of common nylon. According to the fluorescent nylon material and the preparation method thereof provided by the invention, a new possibility is provided for expanding the application of the nylon material in the special field.

The utility model discloses a high-temperature simulation mechanism and a hardness detection device for nylon material, the high-temperature simulation mechanism comprises a bearing platform arranged in the hardness detection device, the inner side of the bearing platform is provided with a heating mechanism, the heating mechanism comprises heating pipes arranged on the inner side of the bearing platform, the heating pipes are uniformly arranged on the inner side of the bearing platform, and the heating pipes are arranged on the inner side of the bearing platform. Pressurizing mechanisms are arranged on the two sides of the heating pipe, each pressurizing mechanism comprises pressurizing rods arranged on the two sides of the heating pipe, the pressurizing rods are evenly arranged on the inner side of the bearing table, the pressurizing rods are slidably connected to supporting guide frames, and the supporting guide frames are fixedly connected with one another; the supporting guide frames are fixedly mounted on the inner side of the bearing table, and extrusion blocks are arranged at the bottom ends of the pressurizing rods. According to the technical scheme, the heating mechanism is arranged, so that when the hardness detection device is used for detecting the hardness of a nylon material, a high-temperature environment can be simulated, and the detection result is more real and accurate.

The invention relates to the technical field of high polymer materials, in particular to a high-toughness nylon material and a synthesis method thereof. The preparation method adopts a three-step strategy of'protection-polycondensation-hydrolytic conversion ', and comprises the following steps: firstly, reacting a 4-p-toluenesulfonyl aminophenol protective agent with a polyether amine prepolymer with an ester bond side chain to protect an ester bond; secondly, the protected prepolymer and dicarboxylic acid are subjected to efficient polycondensation at the temperature of 160-230 DEG C, and a high-molecular-weight nylon polymer is obtained; and finally, by controlling acid hydrolysis conditions, removing a protecting group, and converting an ester bond side chain into an active carboxylic acid side chain at the same time. The method breaks through the traditional synthesis bottleneck, and the prepared nylon material has excellent mechanical properties brought by high molecular weight and functionality endowed by carboxylic acid side chains, and has important industrial application value.