1080 results about "Engineering plastic" patented technology

The invention relates to a flame-retardant PC material as well as a preparation method and application thereof, and belongs to the technical field of engineering plastics. The flame-retardant PC material provided by the invention is prepared from the following components in parts by weight: 75 to 90 parts of PC resin, 7 to 13 parts of silicon copolymerized PC, 1 to 4 parts of reaction type organic silicon flame retardant, 3 to 8 parts of organic phosphorus flame retardant and 0.1 to 0.2 part of antioxidant, the weight ratio of the silicon copolymerized PC to the reactive organic silicon flame retardant is (2-10): 1. According to the flame-retardant PC material disclosed by the invention, the silicon copolymerized PC, the reactive organic silicon flame retardant and the organic phosphorus flame retardant are compounded, so that a very good flame-retardant synergistic effect can be generated, a molten drop phenomenon of the flame-retardant PC in a combustion process can be effectively controlled, an anti-dripping effect similar to PTFE (Polytetrafluoroethylene) is achieved, and the social demand of no PFAS (Polytetrafluoroethylene Acrylonitrile Butadiene Styrene) is met.

The invention relates to the technical field of computer vision, and discloses an engineering plastic production quality detection method and system. According to the method, an engineering plastic surface image sequence on a production line is collected in real time through an industrial camera, and injection molding machine technological parameters are synchronously obtained. And constructing a ViT-Adapter visual feature extraction network based on a multi-scale sliding window, and fusing surface texture features and process parameters. A defect classification model is trained by adopting a combined loss function of improved Focal Loss and comparative learning, zero sample abnormal segmentation is realized based on WinCLIP, and pixel-level positioning of surface bubbles and scratches is realized. And finally, outputting a defect thermodynamic diagram, and carrying out result visualization in linkage with production line parameter self-adjustment. According to the method, the defect detection accuracy and efficiency are improved, automatic adjustment is realized, manual intervention is reduced, and the production quality and the intelligent level are improved.

The invention relates to the technical field of engineering plastics, and discloses a polydicyclopentadiene / carbon nanofiber composite material and a preparation method and application thereof.The method comprises the steps that DCPD, ENB and MNA are mixed to be uniform, CNF is added and subjected to ultrasonic dispersion, a Grubbs second-generation catalyst is added and subjected to ultrasonic dispersion after freezing, finally, mixed liquid is poured into a mold, and the polydicyclopentadiene / carbon nanofiber composite material is obtained. And heating and curing to obtain the high-performance PDCPD / CNF composite material. According to the preparation method, the interaction between PDCPD and CNF can be remarkably improved, so that the mechanical property of the composite material is improved, the used raw material DCPD has low viscosity and high reaction activity, and rapid forming can be realized; meanwhile, the whole production process of the modified PDCPD composite material is green and environment-friendly, the process is simple, complicated chemical modification is not involved, and the feasibility of large-scale industrial production is achieved.

The utility model relates to the technical field of engineering plastic processing, and discloses a cutting device for plastic part processing, the cutting device comprises a base, the base is rotatably connected with a workbench through a rotating assembly, the top of the workbench is symmetrically provided with clamping assemblies, and the rotating assembly comprises a rotating motor fixedly installed on the bottom wall of the base; an output shaft of the rotating motor is fixedly connected with a worm, one side of the worm is connected with a worm gear in a meshed mode, and a connecting shaft is fixedly installed in the worm gear. By starting the cross sliding rail and the rotating motor, the rotating motor can drive the worm to rotate, the worm is meshed with the worm gear to push the connecting shaft and the workbench to rotate, the cutting angle of the part is adjusted, the cross sliding rail can push the cutting motor and the cutting blade to move, and the cutting position of the part is adjusted; and parts of different sizes can be cut, and the practicability of the device is improved.

The invention relates to a special engineering plastic polyethersulfone microcellular foam material and a preparation method thereof, belongs to the technical field of high polymer material foaming, and solves the problem that high foaming ratio, a microcellular structure and excellent mechanical properties cannot be simultaneously obtained when a macromolecular polyethersulfone material adopts an injection foaming technology in the prior art. The method comprises the following steps: step 1, pretreating raw materials; 2, melt blending: mixing the PES base material, the second component, the functional filler, the cross-linking agent and the foam stabilizer, carrying out melt blending, granulating, and drying to obtain granules; 3, injection foaming: injecting the granules into an injection machine, adding a composite foaming agent into the injection machine, mixing, and performing injection foaming molding to obtain an injection-molded foaming material; and 4, curing: irradiating the injection-molded foam material with rays to obtain the special engineering plastic PES microcellular foam material.

The invention relates to the technical field of engineering plastic detection, and particularly discloses an aging detection and evaluation method and system suitable for nylon 6 in a marine environment, the system comprises nylon 6 as a core layer, an aging response color-changing material as a surface layer and a middle layer located between the core layer and the surface layer; the thickness of the middle layer is 200-250 [mu] m, and the composite conductive film is transferred to the position 0.2 mm below the surface of the nylon 6 component in a hot pressing mode; the thickness of the surface layer is 0-200 microns and is realized by spraying an aging response color-changing material solution. By integrating the specially designed aging response color-changing material and the conductive film into the nylon 6 matrix, real-time, visual and efficient detection of the aging process is realized. According to the method, the problem that equipment such as a traditional optical fiber spectrometer is complex and expensive is solved, the convenience of field detection is greatly improved through double signal output of color gradient indication and simple electronic reading, and a brand new technical solution is provided for life prediction and preventive maintenance of nylon 6 components in ocean engineering.

The invention relates to the technical field of high polymer materials, in particular to a low-warpage PBT / PC composite modified material and a preparation method thereof. The composite material is prepared from the following raw materials: PBT resin, PC resin, a filler, an ester exchange inhibitor, a flexibilizer, a compatilizer, an antioxidant, a lubricant, a flowable agent and glass fibers. The preparation process comprises the steps of resin drying and mixing, additive premixing, melt blending extrusion and the like, is simple and controllable in flow and is suitable for large-scale production. The composite material prepared by the invention has high strength, high toughness, low warping degree and excellent processability, can be used for ultrasonic welding, reduces after-shrinkage of the material, solves the problem of melt cooling film sticking, and meets the requirements of the market on high-precision and high-stability engineering plastics.

The glass lifter wire wheel cover comprises the wire wheel cover body and the connecting structure arranged on the wire wheel cover body, the connecting structure is connected with a lifter guide rail, the wire wheel cover body and the guide rail are designed in a split mode, the wire wheel cover body is formed by engineering plastic in an injection molding mode, and the influence on the performance strength of the guide rail is avoided; on the premise that the performance strength of the glass lifter is guaranteed, the weight of the guide rail and the weight of the wire wheel cover are reduced, the light weight requirement is met, the invention further provides a wire wheel cover oiling device used for conducting oiling operation on the wire wheel cover of the glass lifter, oiling operation can be conveniently conducted on the wire wheel cover of the glass lifter, and the production efficiency is improved. And subsequent assembling of the wire wheel cover body is facilitated, and the production efficiency of the glass lifter is improved.

The processing equipment comprises a screw extruder, a feeding mechanism located at the top end of the screw extruder, a heat conduction mechanism located on the outer side of the screw extruder, an upper mold body and a lower mold body, the upper mold body and the lower mold body are located at the output end of the screw extruder, and the upper mold body and the lower mold body are combined. A mold supporting frame is supported at the bottom end of the lower mold body, and the bottom end of the mold supporting frame is fixedly connected with a base. The heat conduction mechanism comprises a heat pipe body and a cold pipe body, the heat pipe body is filled with heat conduction oil, the cold pipe body is filled with cooling liquid, and a plurality of hollow heat conduction blocks are connected between the heat pipe body and the cold pipe body at the same time. The enhanced polypropylene engineering plastic processing equipment and the preparation method thereof disclosed by the invention have the effects of guaranteeing the melting requirement, the fluidity, the mixing property and the finished product quality of raw materials in the feeding process, simultaneously playing a role in saving the cost, avoiding chilling of a mold in the cooling process and effectively protecting the mold.

The invention provides an antistatic talcum powder and graphene composite reinforced material and an in-situ polymerization process thereof, and belongs to the technical field of polymer composite materials. According to the antistatic talcum powder and graphene composite reinforced material and the in-situ polymerization process thereof, the antistatic talcum powder and graphene composite reinforced material is prepared from the following raw materials in parts by weight: 100 parts of matrix resin, 5-30 parts of modified talcum powder, 0.5-5 parts of functionalized graphene and 0.1-2 parts of an antistatic synergist, the modified talcum powder is subjected to surface treatment by a silane coupling agent, the particle size range is 1-10 [mu] m, and the functionalized graphene is graphene oxide or reduced graphene oxide. Through the synergistic effect of the silane coupling agent modified talcum powder and the functionalized graphene and in combination with the ionic liquid antistatic agent, the surface resistance of the material is remarkably reduced. Nanoscale dispersion is realized by adopting an in-situ polymerization process, and the method is suitable for the field of high-performance engineering plastics.

The invention discloses a polyamide composite material as well as a preparation method and application thereof, and relates to the technical field of engineering plastics. The invention provides a polyamide composite material. The polyamide composite material is prepared from the following components in parts by weight: 20 to 80 parts of polyamide resin, 5 to 60 parts of syndiotactic polystyrene, 0.1 to 3 parts of stannous mono-sulphate, 0 to 35 parts of reinforcing filler and 0.05 to 6 parts of compatilizer. According to the polyamide composite material provided by the invention, the syndiotactic polystyrene and the stannous mono-sulphate are cooperated, so that the mechanical property and the heat-resistant stability of the polyamide composite material are further improved.

The invention discloses a single-chain nanoparticle composite reinforced and toughened plastic material and a preparation method thereof, and belongs to the technical field of polymer plastics. The reinforced and toughened plastic material is prepared from the following raw materials in parts by weight: 10 to 20 parts of polymer monomer, 0.004 to 0.005 part of initiator, 0.05 to 0.06 part of chain transfer agent, 8 to 12 parts of solvent and 0.1 to 0.2 part of functional filler, the preparation method specifically comprises the following steps: (1) weighing the raw materials; (2) uniformly mixing the raw materials, and performing nitrogen atmosphere replacement and polymerization reaction; and (3) re-precipitating, and drying in vacuum to obtain the product. The reinforced and toughened plastic material disclosed by the invention not only has excellent performance in the aspect of tensile property, but also shows excellent mechanical response under a bending-resistant load, and is suitable for engineering plastic application scenes with relatively high requirements on structural stability and use safety.

The invention belongs to the technical field of crossing of high polymer materials and artificial intelligence, and discloses a method for optimizing the proportion of a nano-composite flame-retardant master batch in engineering plastic based on machine learning. The method is used for solving the problems that a traditional experience trial and error method is low in efficiency in multi-target performance collaborative optimization, high-dimensional nonlinear parameter space search is difficult, and microscopic coupling effect modeling is missing. According to the method, a multi-dimensional input feature set containing material composition and process parameters is constructed, six key performance indexes are combined to form training data, a mixed model formed by cascading a multi-layer perceptron and Gaussian process regression is trained, an improved non-dominated sorting genetic algorithm (NSGA-II) is adopted for multi-target global optimization, and an optimal ratio meeting preset constraints is obtained. The method is an industrial internet technology system service, and solves the technical problem that multi-target performance is difficult to collaboratively optimize due to the fact that a traditional experience trial-and-error method cannot perform modeling and searching on a high-dimensional nonlinear parameter space of a nano-composite flame-retardant system.

The invention belongs to the technical field of cable installation equipment, and particularly relates to a composite cable insulation fixing device which comprises a fixing device, a cable installation device and a compensation device. The fixing device comprises a fixing base and a fixing column; the fixed column is mounted on the fixed base, and the cable mounting device is horizontally mounted on the fixed column; the cable mounting device comprises a horizontal rod, a vertical rod and a fixing clamp; a vertical rod is mounted at the position, close to the mounting table, of the horizontal rod; the horizontal rods are sleeved with fixing clamps and limiting sleeves, and the limiting sleeves are arranged between the adjacent fixing clamps. The fixing clamp is an I-shaped component, a cable groove which is sunken downwards is formed in the middle of the fixing clamp, and a cable is laid in the cable groove. According to the scheme, a multi-dimensional fixing structure is provided, and the cable fixing stability is greatly improved; the fixing clamp is made of a special engineering plastic material, the weight is reduced, meanwhile, the good insulation effect is achieved, and the fixing clamp is especially suitable for medium-and-low-voltage cables or communication cables.

The invention discloses a high-performance color master batch for automobile engineering plastics and a preparation method of the high-performance color master batch, and belongs to the technical field of color master batches. Comprising the following raw materials in parts by weight: 83-95 parts of polypropylene resin, 33-41 parts of linear low-density polyethylene, 12-16 parts of toner, 6-10 parts of an antioxidant, 7-21 parts of an auxiliary agent and 3-5 parts of a lubricant. Wherein polypropylene is used as a main matrix, so that the color master batch is endowed with excellent mechanical strength; in addition, the linear low-density polyethylene added into the raw materials has good flexibility, and the impact resistance of the color master batch can be improved; in addition, molecules of the auxiliary agent contain various functional groups, so that the anti-ultraviolet performance and the flame-retardant performance of the matrix can be remarkably improved; in conclusion, the color master batch prepared by the invention has excellent mechanical properties, ultraviolet resistance and flame retardance, and has important application value in the technical field of color master batches.

The invention discloses a high-performance PEEK composite material and application thereof in a robot skeleton, and belongs to the technical field of special engineering plastics, the PEEK composite material comprises the following components by weight: 50-80 parts of PEEK, 10-20 parts of an elastomer, 15-30 parts of carbon fiber, and 5-10 parts of a compatilizer, monomers 1-4 are copolymerized to obtain a hyperbranched polyaryletherketone copolymer, the hyperbranched polyaryletherketone copolymer is terminated by polysiloxane and modified by maleic anhydride, the monomer 1 is 4, 4 ', 4'-trihydroxy-3, 3 ', 3'-trimethoxytriphenylmethane, the monomer 2 is isopropyl hydroquinone, the monomer 3 is hydroquinone, and the monomer 4 is 4, 4 '-difluorobenzophenone. According to the high-performance PEEK composite material and the application of the high-performance PEEK composite material in the robot skeleton, the self-made compatilizer is added, so that the PEEK and carbon fiber composite material has the characteristics of high strength, good interfacial compatibility, good bending fatigue performance and the like.

The utility model relates to the technical field of sucker rods, and discloses a PE (polyethylene) fully-coated sucker rod which comprises a sucker rod body, connecting ends are fixedly mounted at the left end and the right end of the sucker rod body respectively, a protective sleeve is sleeved on the outer side of the sucker rod body, and end sleeves are sleeved at the left end and the right end of the sucker rod body respectively. According to the PE fully-coated sucker rod, the outer side of the sucker rod body is coated with the protective sleeve made of the improved ultra-high molecular weight polyethylene material, so that the PE fully-coated sucker rod can better adapt to a well section of 1800-2000 m, and meanwhile, the PE fully-coated sucker rod has better wear resistance; the two ends of the sucker rod body are wrapped and sleeved with the end sleeves made of engineering plastic alloy materials, so that the sucker rod body has better high temperature resistance, friction resistance and corrosion resistance, the end sleeves located at the ends of the sucker rod body are extruded through cooperation of the limiting rings, the inner threaded sleeves, the outer threaded sleeves and the circular-truncated-cone-shaped ring sleeves, and therefore the sucker rod body is prevented from being damaged. And the connection between the end part sleeve and the end part of the sucker rod body is tighter.

The invention discloses an anti-ultraviolet / salt-spray-resistant polyamide composite material and a preparation method thereof, and relates to the field of engineering plastic processing. The anti-ultraviolet polyamide composite material comprises the following components in parts by mass: 70-94 parts of polyamide resin, 5-20 parts of anti-ultraviolet polyamide master batch and 1-10 parts of polydopamine modified hydrotalcite nanoparticles, the anti-ultraviolet polyamide master batch is prepared from the following components in parts by mass: 55 to 99 parts of polyhexamethylene adipamide salt solution with the mass concentration of 5 to 50 percent, 1 to 50 parts of modified anti-ultraviolet agent salt and 0.3 to 1.5 parts of antioxidant; the modified anti-ultraviolet agent salt is obtained by reacting 5-50 parts of an amino-terminated modified anti-ultraviolet agent compound and 5-50 parts of dicarboxylic acid in absolute ethyl alcohol; the polydopamine modified hydrotalcite nano-particles comprise layered hydrotalcite nano-particles and a polydopamine coating layer on the surfaces of the layered hydrotalcite nano-particles. The anti-ultraviolet / salt-fog-resistant polyamide composite material has lasting and stable anti-ultraviolet performance and salt-fog-resistant performance, meanwhile, the excellent mechanical performance of the polyamide material can be kept, and the anti-ultraviolet / salt-fog-resistant polyamide composite material has high application value.

The invention relates to the technical field of mechanical parts, and discloses a high-bearing engineering plastic worm gear applied to a light truck electric power steering system and a manufacturing process, and the manufacturing process comprises the following steps: pretreatment of a polymer base material, preparation of a composite reinforcing material, preparation of an injection molding raw material, precise injection molding, post-treatment and detection. After a polymer base material is subjected to fluorination activation treatment, the surface energy of the material is reduced, the interfacial compatibility with a composite reinforced material is enhanced, and through the synergistic effect of chemical bonding and physical anchoring formed between matrix resin and a modified reinforcement body, the interfacial layering tendency of engineering plastic and a fiber reinforced phase is overcome, so that stress transmission is more uniform; meanwhile, the functional additive components generate an in-situ synergistic effect in the precise injection molding process, and form a multi-stage enhanced network with matrix resin, so that the worm wheel matrix is endowed with excellent overall bearing strength and fatigue fracture resistance, and the structural integrity under the working conditions of high load and high-frequency steering is ensured.

The invention belongs to the technical field of ocean sampling, and provides a pneumatic throwing type multi-channel self-sinking and floating trace seawater sampling device and a pneumatic throwing type multi-channel self-sinking and floating trace seawater sampling method. The device comprises a portable gas cylinder, a casting track, a self-sinking and floating type trace seawater sampler shell, a fixing frame, a pressure sensor, a control bin and the like, and after a seawater sample is collected, a fixing agent can be injected into the seawater sample to fix microorganisms in the seawater sample and the like. And the self-sinking and floating trace seawater sampler is far away from the trace element precipitation influence area of the scientific investigation ship in a pneumatic throwing manner. Meanwhile, the seawater sampling valve with the engineering plastic valve core and the flow channel is innovatively designed, and the seawater sample bin and the fixing agent bin on the inner surface are coated with engineering plastic, so that the interference caused by trace element precipitation of a metal structure of the sampler in the prior art is avoided.

The utility model relates to the related technical field of plastic part processing, in particular to an engineering plastic part grabbing device which comprises a frame body, an adjusting mechanism is arranged on the top of the frame body, and a grabbing mechanism is arranged on one side of the adjusting mechanism. The grabbing mechanism comprises a driving air cylinder, a third driving motor, a first connecting disc, a connecting column, a connecting plate, a threaded column, a clamping arm, a second connecting disc, a movable block, a connecting block and a mounting piece, through the arrangement of the grabbing mechanism, the third driving motor drives the connecting column to rotate, the threaded column is made to move up and down, and then opening and closing of the clamping arm are controlled; the clamping range of the clamping arms can be flexibly adjusted according to plastic parts of different sizes, an adjusting mechanism is embedded in the inner wall of a first sliding groove through one end of a first sliding plate, one side of a second sliding plate is embedded in the inner wall of a second sliding groove, and by means of the design, sliding is more stable when certain pressure is borne; and the risk of grabbing failure or plastic part damage caused by shaking is reduced.

Comfortable and durable outdoor seating The present invention describes a comfortable and durable outdoor seating which is made of polystyrene engineering plastic using blow moulding technology Due to the lightweight material used for making the seating, it can be easily transported to the site of installation after which it is fixed to the ground and optionally its weight is increased by pouring RCC in the side supports. The polystyrene engineering plastic material can sustain extreme environmental conditions. The design is made according to human contour which provides comfort to the person seating and blow moulding technology gives cushioning effect and aesthetic look to the outdoor seating. As the polystyrene is self-coloured, fading of colour is limited. Single seater, two seater or three seater seatings can be designed. Moreover the outdoor seating can also be converted into a swing.

The invention discloses a high-toughness polyetherketoneketone polymer and a preparation method thereof, and belongs to the technical field of macromolecular special engineering plastics. The high-toughness polyether ketone ketone polymer is obtained by reacting diphenyl ether, paraphthaloyl chloride, a compound 1 and anhydrous aluminum trichloride according to a molar ratio of 1: a: (1-a): (3-5), the value of a is 0.5-0.9, and the compound 1 is isophthaloyl chloride with a flexible polyether side chain. According to the high-toughness PEKK polymer disclosed by the invention, a flexible polyether side chain is introduced into a rigid polymer main chain, so that compared with a traditional PEKK polymer molecule with a pure rigid structure, the high-toughness PEKK polymer shows better flexibility, and harmony and unification of strength, rigidity and flexibility are realized.

The invention relates to a microporous nano foam material with a micro-nano pore structure as well as a preparation method and application thereof, and belongs to the technical field of foam materials. According to the invention, a micro-cross-linked network is taken as a core, and the problem of insufficient melt strength caused by disentanglement of molecular chains in a high-temperature processing and forming process of the hydroxyl-terminated polymer is solved through a multi-network (a cross-linked structure, a chain extension structure and a branched chain structure) structure. The preparation method comprises the following steps: firstly, preparing a high-performance microporous nano foaming material with a micro-nano pore structure by using a high-pressure foaming technology and then carrying out supercritical forming by using a supercritical foaming technology, so that the problem that all special engineering plastics containing terminal hydroxyl groups are difficult to foam due to rigid chain structures can be solved, and finally, high-frequency high-speed high-performance antennas which are used for 5G and 6G are obtained.

The invention provides a heat-conducting and electromagnetic-shielding composite functional master batch as well as a preparation method and application thereof. The heat conduction / electromagnetic shielding composite functional master batch comprises engineering plastic, heat conduction electromagnetic shielding filler and a toughening agent, and the heat conduction electromagnetic shielding filler comprises heat conduction resistance type electromagnetic shielding filler and heat conduction magnetic loss type electromagnetic shielding filler, the heat-conducting resistance type electromagnetic shielding filler comprises a one-dimensional carbon filler and a two-dimensional carbon filler, and comprises engineering plastic, a flexibilizer and a heat-conducting electromagnetic shielding filler. Under the action of the composite force field module under the combined action of stretching and shearing, uniform dispersion of the engineering plastic and the functional filler is realized, and synchronous improvement of heat conduction and electromagnetic shielding performance of the engineering plastic is realized.

The invention relates to the technical field of plastic lubricants, and particularly discloses a PETS lubricant for engineering plastics and a preparation method of the PETS lubricant. The PETS lubricant for the engineering plastics is prepared from the following raw materials in parts by weight: 65 to 85 parts of modified PETS, 10 to 15 parts of maleic anhydride grafted ethylene-vinyl acetate, 5 to 15 parts of fluorinated carbon nanotubes, 4 to 7 parts of fluorine-containing ionic liquid and 0.5 to 1 part of antioxidant. The PETS lubricant for the engineering plastics can be used for processing the engineering plastics, has excellent internal and external lubrication performance, and can remarkably improve the mechanical property and the surface quality of engineering plastic products and improve the high-temperature friction resistance of the engineering plastics at the same time.

The invention provides a coated matte transfer film and a preparation method and application thereof, and relates to the technical field of surface multifunctionalization of composite fiber materials, engineering plastic materials, inorganic materials, metal materials and the like, the preparation method of the coated matte transfer film comprises the following steps: S1, firstly coating the surface of a base material layer with a treatment layer, then coating the surface of the base material layer with a coating liquid I, and finally coating the surface of the base material layer with a coating liquid II; performing excimer curing to form a matte surface; s2, then EB curing is carried out, the coating liquid I is completely cured, and a coating matte layer is obtained; and S3, after the surface of the coating matte layer is coated with the coating liquid II, EB curing is conducted, the coating liquid II is pre-cured, a transfer layer is obtained, and then preparation of the coating matte transfer film is completed. According to the preparation method of the coating matte transfer film provided by the invention, the excimer curing and EB curing technologies and the synergistic effect of all the components are utilized, so that the prepared coating matte transfer film can endow the surface of a composite fiber material, an engineering plastic material, an inorganic material, a metal material and the like with a super matte effect; meanwhile, the material can be endowed with special functions of resisting bacteria, killing bacteria, resisting viruses, preventing static electricity, resisting strong acid and strong alkali, resisting fingerprints, resisting scratches and self-cleaning, so that the functionality and practicability of a composite fiber material, an engineering plastic material, an inorganic material and a metal material are improved.

The invention discloses a flame-retardant polyolefin non-woven fabric as well as a preparation method and application thereof, and belongs to the technical field of polymer engineering plastics. The flame-retardant polyolefin non-woven fabric is prepared from, by mass, 60-85 parts of HDPE, 5-10 parts of TPEE, 5-15 parts of maleic anhydride grafted styrene, 2-6 parts of modified aluminum hydroxide, 6-16 parts of diethyl aluminum hypophosphite and 1-4 parts of antimonous oxide, the grafting rate of maleic anhydride grafted styrene is larger than or equal to 8%, the modified aluminum hydroxide is of a core-shell structure, a core layer is aluminum hydroxide, and a shell layer is aluminum hydroxide. The shell layer is cationic starch, and the average particle size of the modified aluminum hydroxide is greater than or equal to 0.5 mu m and less than or equal to 10 mu m. The flame-retardant polyolefin non-woven fabric prepared by the preparation method disclosed by the invention has excellent mechanical strength and good flame retardance. In addition, the preparation method of the flame-retardant polyolefin non-woven fabric provided by the invention is simple to operate and beneficial to actual production.

The invention discloses a high-toughness modified PPS engineering plastic and a preparation method thereof, and relates to the technical field of engineering plastics. The high-toughness modified PPS engineering plastic is prepared from the following raw materials in parts by weight: 40 to 60 parts of polyphenylene sulfide, 10 to 20 parts of maleic anhydride grafted ethylene-octylene copolymer, 5 to 15 parts of nano calcium carbonate, 10 to 20 parts of modified glass fiber, 0.5 to 2 parts of titanate coupling agent, 0.2 to 1 part of antioxidant 1010, 0.2 to 1 part of antioxidant 168, 0.5 to 2 parts of stearic acid, 0.5 to 2 parts of bisoxazoline and 10 to 20 parts of modified polyphenylene sulfide reinforcement. Through a ternary synergistic modification system and a gradient blending process, the bottleneck that toughness and rigidity of traditional PPS are difficult to consider at the same time is broken through, the preparation process is simple and controllable, the raw material cost is reduced compared with similar high-performance engineering plastics, and the high-performance engineering plastic is suitable for industrial large-scale production.

The invention relates to the technical field of engineering plastics, in particular to a light-transmitting laser-weldable glass fiber reinforced PBT (Polybutylene Terephthalate) material and a preparation method thereof. The glass fiber reinforced PBT material is prepared from the following raw materials in parts by weight: 120 to 140 parts of PBT resin, 20 to 40 parts of PC resin, 30 to 50 parts of glass fiber, 0.01 to 0.02 part of graphene oxide grafted hyperbranched polyamide, 0.2 to 2 parts of silane coupling agent, 0.2 to 2 parts of flowable agent, 0.2 to 2 parts of lubricant, 0.2 to 1 part of antioxidant, 0.5 to 1.5 parts of ester exchange inhibitor and 0.4 to 2 parts of dispersant. The method has the advantage of improving the strength of the laser-weldable PBT material.