474 results about "Nylon material" patented technology

The invention relates to the technical field of nylon materials, in particular to hydrophobic high-strength transparent nylon as well as a preparation method and application thereof. According to the preparation method, 3, 3 '-dimethyl-4, 4-diaminodicyclohexylmethane (MACM), aromatic diamine and fatty diacid are taken as reaction monomers, and the novel transparent nylon is obtained by adjusting the dosage ratio of the monomers and further adjusting the preparation process (regulating and controlling the reaction process). The transparent nylon provided by the invention has the advantages of hydrophobicity, high strength and high light transmittance. The technical problem that existing nylon is high in water absorption rate is solved. The hydrophobic transparent nylon provided by the invention can be used under the condition of high humidity, and has higher safety and longer service life; therefore, the application field of the transparent nylon is expanded.

The invention belongs to the technical field of nylon materials, and particularly relates to a high-heat-resistance halogen-free flame-retardant nylon material and a preparation method thereof. According to the invention, PA6 and PA66 base materials are compounded by utilizing the high heat resistance of PA66 and the processability advantage of PA6, and the heat deformation temperature of the material is improved through the synergistic effect of the modified glass fiber reinforcing agent and the antioxidant, so that the heat-resistant requirements of high-end scenes such as new energy automobile battery components and high-temperature electronic components are met. Halogen flame retardants are completely abandoned, the modified halogen-free flame retardant is adopted, the flame retardant effect is achieved, meanwhile, no harmful halogen hydride gas or dioxin is released during combustion, and the material still keeps excellent rigidity and toughness on the basis of high flame retardance and high heat resistance and is suitable for popularization and application. The problem that the mechanical property of a traditional halogen-free flame retardant is reduced due to high addition amount is solved.

The invention relates to the field of nylon materials, in particular to a high-temperature-resistant nylon / PTFE composite material and a preparation method and application thereof. The high-temperature-resistant nylon / PTFE composite material is prepared from the following raw materials in parts by weight: 40 to 90 parts of modified nylon, 0.5 to 15 parts of polytetrafluoroethylene, 5 to 15 parts of composite filler, 1 to 3 parts of compatilizer and 0.1 to 0.3 part of antioxidant, the composite filler comprises modified calcium fluoride whiskers, modified glass beads and modified hexagonal boron nitride. Through collaborative design of multiple performance dimensions such as interface, heat resistance, wear resistance, mechanics and the like, the composite material has excellent high-temperature stability, low-friction wear resistance and high-strength mechanical performance at the same time, has remarkable breakthrough in comprehensive performance and service life compared with a traditional nylon-based composite material, and has extremely high technical innovation and practical value.

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 discloses a full-bio-based multifunctional antibacterial nylon material as well as a preparation method and application thereof, relates to the technical field of high-molecular polymers, and solves the problems that the preparation process of a nylon material in the prior art depends on petroleum resources, the function is single and the application scene is limited. The method comprises the following steps: reacting an aminocaprolactam solution with corresponding aldehyde / carboxylic acid / halogenated alkane, and purifying to obtain a cyclic lysine derivative monomer M; the preparation method comprises the following steps: mixing and heating a cyclic lysine derivative monomer M, an initiator and a catalyst, reacting, and purifying to obtain a nylon material PM; and carrying out quaternization reaction on the nylon PM solution and alkyl halide, and purifying to obtain the full-bio-based multifunctional nylon material P. The preparation method completely abandons the use of petroleum-based raw materials, realizes the multifunctional synergistic effect of antibacterial property, biocompatibility, antibacterial biofilm property, thermosensitivity and the like, and can be applied to the fields of antibacterial materials, biomedical materials, antibacterial biofilms and thermosensitivity materials.

The invention provides a high-performance nylon material and a preparation method thereof. The high-performance nylon material comprises the following components in parts by weight: 30-65 parts of polyamide 66; 5 to 25 parts of special nylon resin; 30 to 35 parts of glass fiber; 0.2 to 0.4 part of an antioxidant; 0.4 to 0.8 part of a lubricant; 1 to 3 parts of compatilizer; 5-15 parts of a wear-resistant auxiliary agent; 0.6 to 1.0 part of a weather-proof auxiliary agent; and 0.3 to 0.7 part of black master batch. The nylon material prepared by the invention is suitable for performance requirements of outdoor precision bearings, and has excellent performances of low friction coefficient, low abrasion, high strength, high modulus, long-period weather resistance, long-period high temperature and high humidity resistance and the like.

The invention discloses an oxidation-resistant monomer casting nylon material and a preparation method thereof, and relates to the field of material preparation, and the monomer casting nylon material is applied to a high-temperature and oxygen-enriched environment and comprises the following components in parts by mass: 100 parts of caprolactam; 0.1-0.3 part of a catalyst which is one of sodium hydroxide, potassium hydroxide or lithium hydroxide; 0.5 to 1.5 parts of an activating agent, wherein the activating agent is N-acetyl caprolactam; 0.7 to 3 parts of a main antioxidant, wherein the main antioxidant comprises a hindered phenol antioxidant and a thioester antioxidant; 0.1-0.5 part of an auxiliary antioxidant, which is a metal deactivator; 1-3 parts of an inorganic filler which is modified montmorillonite; and 0.5-2 parts of a hydrophobic agent which is a silane coupling agent. By constructing a composite anti-oxidation system, multi-level synergistic protection can be formed for three key oxidation stages of free radical initiation, peroxide accumulation and metal catalysis, and a full path of an oxidation chain reaction is covered from a molecular level, so that the aging process of the material is remarkably delayed, and the service life of the material is prolonged. And high oxygen resistance and relatively long service life are provided for nylon application under severe working conditions.

The invention relates to the technical field of photovoltaic connector manufacturing, in particular to a temperature control forming process of a photovoltaic nylon connector mold and a composite runner, the mold is divided into a fixed mold area, a movable mold area, a mold cavity area, a mold core area and a pouring gate area, and each area is provided with an independent temperature control loop. According to different requirements of the mold filling state and the cooling stage of nylon materials, the temperature of each area of the mold is dynamically adjusted, the mold temperature is properly increased in the initial mold filling stage, a cavity is rapidly filled with melt, and along with mold filling, the mold temperature is gradually reduced, and melt cooling and crystallization are accelerated. According to the temperature control forming process of the photovoltaic nylon connector mold and the composite runner, the phase change energy storage material is embedded in the fixed mold area of the mold, and the heat absorption and release characteristics of the phase change energy storage material during phase change are used for assisting temperature control, so that the problem of embrittlement or insufficient strength caused by non-uniform crystallization of a product in a traditional process is solved; and the photovoltaic connector is ensured to have good mechanical property and weather resistance in long-term use.

The present invention discloses a high-strength, low-precipitation halogen-free flame-retardant polyamide composition and its preparation method. The composition comprises the following raw materials, measured by weight: 26-89.98% polyamide resin; 10-35% filler; 0.01-25% flame retardant; 0.01-10% modified synergistic flame retardant; 0-1% antioxidant; 0-2% processing aid; and 0-1% masterbatch. This invention addresses the "pain point" of halogen-free flame-retardant nylon materials, which are prone to precipitation. Based on the structural characteristics of nylon materials, the present invention introduces a flame retardant with a novel structure in the formulation design to balance the char layer thickness and char layer fluidity during the combustion process, thereby improving the flame retardant efficiency. Furthermore, a modified synergist is introduced, and the synergistic effect of the synergist and the flame retardant further enhances the flame retardant efficiency. Surface treatment of the synergist increases its compatibility with the polyamide resin, avoiding the risk of precipitation.

This invention discloses a highly efficient synergistic halogen-free flame-retardant nylon material and its preparation method. Specifically, it is prepared from 57-60 parts by weight of nylon resin, 30 parts by weight of short glass fibers, 10-13 parts by weight of halogen-free flame retardant, 1-3 parts by weight of wollastonite mineral fibers, 0.2-0.5 parts by weight of antioxidant, 0.2-0.5 parts by weight of lubricant, and 0.2-0.4 parts by weight of coupling agent. The material prepared by this invention, through the addition of wollastonite mineral fibers, forms a synergistic flame-retardant effect with the halogen-free flame retardant, which not only improves the flame-retardant performance of the material but also improves its flowability and dimensional stability, reduces the exposure of glass fibers, and enhances the mechanical properties of the material. Furthermore, wollastonite mineral fibers are inexpensive, which can reduce the cost of composite materials, making it very suitable for halogen-free flame-retardant nylon materials and enabling large-scale promotion and use.

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 relates to a fluff polishing brush wire and a preparation method thereof, and belongs to the technical field of nylon materials for brush wires. The napping polishing brush wire is made of a nylon material, and the nylon material is prepared by the following steps: uniformly mixing a silane coupling agent and absolute ethyl alcohol, adding a carbon nano tube, heating, stirring and purifying to obtain a pretreated carbon nano tube; ultrasonically mixing the pretreated carbon nanotube, ethyl acetate, styrene and glycidyl methacrylate, adding an initiator, heating and stirring for reaction, and purifying to obtain a modified carbon nanotube; aBS is subjected to heat treatment, nylon resin, the modified carbon nanotubes, the compatilizer, the antioxidant and the lubricant are added, melt extrusion is performed, and the ABS composite material is prepared. The compatilizer and the modified carbon nanotubes are added, and maleic anhydride, an epoxy functional group and a styrene phase are contained, so that the compatibility of nylon and ABS can be improved, the interface bonding force of the carbon nanotubes in an organic system can be improved, the mechanical property and the processability of the material can be improved, and the impact resistance of the composite material can be improved.

A flame-retardant nylon material and a preparation method therefor. The components of a flame retardant in the flame-retardant nylon material comprise a mixture of aluminum diisobutyl hypophosphite and brominated polystyrene. The technical solution overcomes the problems of insufficient flame retardant properties and poor mechanical properties of existing flame retardants when added to plastics in the prior art.

The invention relates to the technical field of nylon materials, in particular to a high-temperature-resistant high-strength transparent nylon material and a preparation method and application thereof. According to the invention, 3, 3 '-dimethyl-4, 4-diaminodicyclohexylmethane (MACM), aromatic diacid and aliphatic diamine are used as reaction monomers, and the transparent nylon is obtained by adjusting the dosage ratio of the monomers, further adjusting the preparation process and regulating the reaction process. The high-temperature-resistant transparent nylon provided by the invention has the advantages of high temperature resistance, high strength and high light transmittance; the method has great application prospect and value.

The utility model discloses a reusable fruit and vegetable planting bag, and relates to the technical field of planting bags, the reusable fruit and vegetable planting bag comprises a planting bag body, the surface of the planting bag body is provided with a hand strap, the inner wall of the planting bag body is fixedly connected with a reinforcing plate, the surface of the reinforcing plate is provided with a chute, and the surface of the reinforcing plate is fixedly connected with the hand strap. According to the fruit and vegetable planting bag capable of being used repeatedly, by rotating the threaded sleeve, the threaded sleeve extrudes the sliding pipe, so that the clamping plate is inserted into the clamping groove, and the sliding pipe and the reinforcing plate are connected into a whole; the planting bag body is further supported and reinforced, so that the situation that the planting bag body is naturally bent in the using process due to the nylon material of the planting bag body is avoided, meanwhile, the situation that a reinforcing plate slides off from the surface of a sliding pipe is avoided, and people can use the planting bag conveniently.

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 discloses a granulating device for processing glass fiber reinforced nylon particles, relates to the technical field of nylon particle production, and aims to solve the problems that in the prior art, glass fiber reinforced nylon materials are relatively high in temperature and relatively soft in texture after being extruded in an extruder. However, an existing granulation device is not provided with a cooling mechanism, so that materials are prone to deformation in the process of entering the granulation device. And the deformation can generate adverse effects on the production quality of the granulator. A plurality of guide pipes are fixedly connected to the middle of the end face of one side in the cooling device at equal intervals, a plurality of outlet pipes are fixedly connected to the middle of the end face of the other side in the cooling device at equal intervals, and a lower pressing roller and a supporting roller are arranged at the upper end and the lower end of one side of each outlet pipe correspondingly. An L-shaped pressurizing water pipe is fixedly arranged at the upper end of the middle of the interior of the cooling device, a plurality of spraying heads are fixedly connected to the lower end of the L-shaped pressurizing water pipe, and the cooling device is fixedly connected with a pelletizing device.

The invention discloses an antibacterial nylon material as well as a preparation method and application thereof, and relates to the technical field of antibacterial high polymer materials.Firstly, a seven-membered cyclic lysine derivative monomer with a quaternary ammonium salt antibacterial group is obtained through lysine cyclization and functionalization; and realizing ring-opening copolymerization of quaternized cyclic lysine and a lactam monomer by using a novel catalytic system, and directly introducing a quaternary ammonium salt group into a side chain of copolyamide. Compared with the prior art, the novel catalytic system constructed by the method disclosed by the invention can directly realize ring-opening copolymerization of quaternization monomers, so that the working procedure of dissolving copolyamide with a solvent and then carrying out quaternization reaction is avoided; the preparation method is simple in process, high in production efficiency, low in cost and suitable for industrial production of the antibacterial nylon material, and an antibacterial agent is not required to be added, and complex operations such as melt blending are avoided. The material has a broad-spectrum, efficient and lasting antibacterial effect, can be formed by injection molding, blow molding, extrusion molding, spinning and the like, and can be widely applied to the fields of fabrics, plates, pipes, packaging, various panels and the like.

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 invention relates to the technical field of functional magic tapes, in particular to a flame-retardant nylon material, a preparation method of the flame-retardant nylon material and a magic tape. The flame-retardant nylon material comprises the following raw materials in parts by mass: 60-80 parts of nylon 66, 10-20 parts of a multifunctional composite flame retardant and 0.2-1.0 part of a stabilizer, the multifunctional composite flame retardant is prepared by compounding and blending a zinc oxide-lignin composite material and piperazine pyrophosphate. The magic tape prepared from the flame-retardant nylon material disclosed by the invention has excellent flame retardance and ultraviolet resistance.

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 nylon powder for cosmetics capable of improving skin-fitting feeling as well as a preparation method and application of the nylon powder, and particularly relates to the technical field of nylon materials. The invention discloses a modified alcohol-soluble nylon resin which is prepared from the following raw materials in parts by weight: 85 to 115 parts of lactam monomer, 15 to 35 parts of styrene derivative monomer, 0.3 to 1.2 parts of basic catalyst, 0.2 to 0.8 part of polyisocyanate compound, 0.2 to 0.6 part of antioxidant, 7 to 11 parts of modified alcohol-soluble nylon resin, 1 to 4 parts of amino acid derivative, 0.3 to 1.5 parts of quaternary ammonium salt surfactant, 0.1 to 0.6 part of fatty acid and 0.05 to 0.2 part of nano titanium dioxide. The preparation method comprises the steps of mixing reaction, secondary mixing and post-treatment. Through a specific raw material ratio and a preparation process, the mechanical property, spreadability, skin-friendly feeling and smooth feeling of the nylon powder are improved, the modified alcohol-soluble nylon resin improves the solvent viscosity and the sphericity degree of the nylon powder, the amino acid derivative and the like enhance the skin-friendly property, and the nano titanium dioxide optimizes the structure and has the effects of sunscreen and brightening.

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.