992 results about "Thermoplastic" patented technology

Provided is a thermoplastic polyurea that has a number average molecular weight of from more than 5,000 to 50,000, and the number average molecular weight and the amine value satisfy formula (1). Formula (1): 2.0≤(number average molecular weight×amine value [μmol / g] / 106≤4.0

The invention provides a preparation method and application of a dynamic covalent bond compatibilized thermoplastic blend, and relates to the technical field of high polymer materials, the method comprises the following steps: (1) carrying out melt blending on at least two incompatible or partially compatible thermoplastic polymer blends, a reaction reagent containing acid anhydride or carboxyl groups, an initiator and an auxiliary agent according to a mass ratio of 100: (0.5-12): (0.05-1.5): (0.5-12), carrying out reactive extrusion to obtain a grafted modified material; and (2) carrying out melt blending on the grafted modified material, a cross-linking agent containing an epoxy group or a hydroxyl group and a catalyst according to a mass ratio of 100: (1-20): (0.1-5), and carrying out reactive extrusion to form a dynamic covalent bond network so as to obtain the compatibilization blend. According to the invention, the compatibility and mechanical properties of the thermoplastic blend are improved, and the problems of high recovery cost, complex recovery technology, serious plastic pollution and the like of the waste thermoplastic plastic blend in real life are solved.

The invention discloses a thermoplastic epoxy polymer with a micro-cross-linked structure and a preparation method thereof.The preparation method comprises the steps that in the step-by-step polymerization reaction process of thermoplastic epoxy resin, firstly, epoxy or amino or hydroxyl-terminated thermoplastic epoxy resin is obtained by controlling the group molar ratio and the reaction time of raw materials; when the molecular weight of a reaction product reaches a certain degree, polyfunctional epoxy compounds, amines, acid anhydrides, phenols and other compounds are introduced, and the thermoplastic epoxy resin with a micro-crosslinking structure is obtained through chain extension. The glass transition temperature of the thermoplastic epoxy polymer with the micro-crosslinking structure is obviously higher than that of a linear thermoplastic epoxy polymer of the same type. Compared with thermoplastic epoxy polymers of the same type, the thermoplastic epoxy polymer with the micro-crosslinking structure prepared by the invention still has the characteristics of thermoplasticity, capability of being melted by heating, capability of being dissolved by a solvent and the like.

The invention discloses environmentally degradable plastic as well as a preparation method and application thereof, and belongs to the technical field of degradable plastic. The degradable modified plastic is prepared from the following raw materials: polylactic acid, poly (butylene terephthalate)-adipate, modified thermoplastic starch, modified cellulose, poly (butylene succinate), epoxidized soybean oil, polyvinyl alcohol, glycerol monolaurate and ethylenediaminetetraacetic acid. Wherein the modified thermoplastic starch is obtained by thermoplastic modification of starch through a plasticizer and modification of castor oil and toluene diisocynate; the modified cellulose is obtained by modifying cellulose acetate with chitosan. By regulating and controlling the types and proportions of the raw materials for preparing the plastic, the plastic with excellent degradation performance and mechanical performance can be obtained, the shopping bag is prepared from the plastic, the loading capacity can be remarkably improved, the plastic is easily degraded by microorganisms in the environment after being discarded, and environmental pollution is avoided.

The invention relates to the technical field of plastic packaging, and discloses a Teflon adhesive tape packaging thermoplastic machine which comprises a main body assembly, a guiding assembly and a discharging structure, the guiding assembly is fixedly arranged on the left side of the main body assembly and corresponds to the main body assembly, and the discharging structure is movably arranged on the guiding assembly and corresponds to the guiding assembly. The device is high in specification adaptability and compatible with multiple types of adhesive tapes, Teflon adhesive tapes of different specifications can be treated through simple adjustment, the equipment universality is remarkably improved, automatic discharging control is achieved, the discharging number is accurately adjusted, intermittent discharging of a single roll or multiple rolls of adhesive tapes can be controlled, production flexibility is improved, a fault module can be rapidly positioned during equipment maintenance, and the production efficiency is improved. No professional tool is needed in the adjusting process, the maintenance difficulty and cost are reduced, the rapid debugging requirement in large-scale production is met, the labor intensity is reduced, the device is especially suitable for a large-scale production scene, and the stability and consistency of the packaging quality are guaranteed.

A pre-stressed pultruded glass fiber reinforced thermoplastic lumber suitable for demanding construction environments, particularly marine and outdoor applications, features a solid core composed of a thermoplastic, such as PVC, blended with 15% to 40% by weight of pelletized chopped strand glass fibers. Pre-tensioned elongated continuous fiber reinforcements are embedded within and coextensive with this core via pultrusion. The presence of pelletized and fragmented glass fibers within the core enhances the mechanical coupling between the core and the continuous reinforcements, facilitating the transfer of tensile stress to the core as compressive pre-stress. An outer co-extruded cap stock provides protection against UV and IR radiation and enhances impact resistance. The resulting lumber exhibits a high modulus of elasticity (exceeding 800,000 psi), at least 60% fiber length retention, improved durability, and resistance to common wood degradation factors without the use of toxic chemicals.

The invention discloses an aviation thermoplastic bending performance detection device and method, the device comprises a base body, a temperature control mechanism is arranged above the base body to control the temperature of the environment of a detected sample, a supporting seat is arranged above the base body, the supporting seat is arranged to be bilaterally symmetrical about the center of the base body, and the supporting seat is arranged above the base body. The base body is used for supporting the left end and the right end of a detected sample, a bending and pressing mechanism is arranged above the base body and is used for carrying out a bending test on the detected sample, and an auxiliary resetting mechanism is arranged below the bending and pressing mechanism. According to the aviation thermoplastic bending property detection device, a temperature-adjustable detection environment is provided for a detected sample through the arrangement of the temperature control cover, the detected sample can be heated by heating the environment, and the detected sample is recovered to the original shape by matching with the auxiliary reset mechanism, so that the material state of the detected sample is better observed; and a clamping and locking mechanism capable of locking plastics with different shapes is arranged on the supporting seat, so that the application range of the device is widened.

The invention relates to the technical field of fractured stratum reinforcement, in particular to a fractured stratum rapid isolating and reinforcing device and method based on deep drilling lining repair. The device comprises drilling equipment, a double-film lining structure, an electric inflator pump, an ultraviolet curing piece and a controller. The double-membrane lining structure comprises an outer hose and an inner membrane tube; the outer hose is made of glass fiber reinforced thermoplastic plastics, the inner film pipe is arranged outside the drill rod in a sleeving mode, and the two ends of the inner film pipe are fixed to the drill rod in a sealed mode. The length of the outer hose is smaller than that of the inner film in the pipe, the outer hose adheres to the middle end of the inner film pipe through hot melt adhesive, an air guide opening is formed in the end, away from the drill bit, of the inner film pipe, and the inflator pump is communicated with the air guide opening through an air guide pipe. And the ultraviolet curing piece is arranged on the outer wall of the drill rod in the inner membrane tube. According to the device, the outer hose is tightly attached to the hole wall, then ultraviolet rays can be evenly irradiated to the outer hose through the ultraviolet emitter, rapid and complete curing of the outer hose is achieved, and the efficiency and safety of drilling operation are improved.

The invention is directed to a biodegradable, thermoplastic multiblock copolymer, to a process for preparing a biodegradable, thermoplastic multiblock copolymer, to the use of a biodegradable thermoplastic multiblock copolymer, to a composition for the delivery of at least one pharmacologically active compound to a host, and a medical device comprising a biodegradable, thermoplastic multiblock copolymer. The biodegradable, thermoplastic multiblock copolymers of the invention comprise at least one prepolymer (A) segment and at least one hydrolysable amorphous prepolymer (B) segment, wherein the segments are linked by a multifunctional chain extender, wherein the at least one prepolymer (A) segment comprises: a) one or more hydrolysable linkages, b) a water-soluble polyoxazoline-based polymer, and c) reaction products of one or more cyclic monomers and / or one or more non-cyclic monomers, wherein the water-soluble polyoxazoline-based polymer is a polymer containing a repeating unit of structure −[N(COR1)CH2CH2]n− where R1 is independently selected for each repeating unit from an alkyl group and n is 3-100, and wherein the multiblock copolymer is amorphous.

The invention discloses a modified thermoplastic solid-solution anticorrosive coating, a preparation method thereof and application of the modified thermoplastic solid-solution anticorrosive coating on the surface of a pneumatic actuator, and belongs to the field of industrial equipment surface protection materials. Two novel modifiers are designed to construct a multi-protection system. Wherein the layered double hydroxide-silane covalent grafting modifier takes magnesium-aluminum layered double hydroxide as a matrix, and after covalent modification by a silane coupling agent, the matrix is compounded with a quinoline derivative in an intercalation manner, so that the interface bonding and barrier properties are improved; according to the polyaniline-graphene covalent grafting modifier, few layers of graphene and polyaniline are copolymerized and then grafted with a polyurethane prepolymer, so that the toughness and the conductive corrosion resistance of a coating are enhanced. The coating is prepared by taking polyethersulfone as a matrix, compounding the modifier, nano silicon dioxide and other components, mixing, dissolving, dispersing at a high speed and ultrasonically defoaming. The coating has the advantages of high interface adhesion, strong corrosion resistance, dynamic fatigue resistance, environmental protection, no solvent and the like, and is suitable for surface protection of key components such as a pneumatic actuator shell.

The invention relates to a method (400) for manufacturing a casing (102) of a turbine engine (10), the casing (102) comprising a skin (102a) having an annular shape about an axis (A) and comprising tubular vents (106) which project on an outer annular face (102e) of the skin (102a) and are oriented radially with respect to the axis, the method (400) comprising the following steps: - preparing (402) an annular skin made of a thermoplastic-based material, the skin comprising openings (102h) passing through in the radial direction, - preparing (404) tubular vents made of thermoplastic-based material, - attaching (406) the tubular vents to the skin, with the attachment step (406) comprising, for each vent (106): • welding (406a) a support (200) to the skin at one of the openings, and • welding (406b) a sleeve (202) to the support and / or the skin, with the assembly formed by the support and the sleeve forming the vent.

The invention discloses low-odor thermoplastic vulcanized rubber for an automobile skin as well as a preparation method and application of the low-odor thermoplastic vulcanized rubber. The raw materials comprise 50 to 80 parts of ethylene-propylene-diene copolymer rubber, 20 to 50 parts of polypropylene, 5 to 15 parts of a compatilizer, 0.5 to 2.5 parts of a compound cross-linking agent, 0.5 to 2.0 parts of an odor adsorbent and 0.5 to 1.0 part of an antioxidant. The preparation method comprises the following steps: banburying and blending, dynamically vulcanizing by using a first double-screw extruder, adsorbing and deeply devolatilizing by using a second double-screw extruder, and carrying out vacuum baking at 100 DEG C. By utilizing the synergistic effect of the cross-linking agent and the assistant cross-linking agent, the degradation of polypropylene is inhibited while the cross-linking efficiency is ensured, and a low-boiling-point reaction by-product (tert-butyl alcohol) is thoroughly removed through a multi-stage devolatilization process, so that the problems that the traditional TPV material is strong in odor and easy to atomize are solved. The smell grade of the obtained material is less than or equal to 3.0 grade, and the atomization value is lt; and the coating is suitable for high-end automotive trim skins.

A pile is comprised of a pipe, i.e., a hollow tube or hollow cylinder, with a coextensive internal reinforcement comprised of a plurality of intersecting walls. The pile is comprised of a blend of a thermoplastic and 20 to 50% (pbw) pelletized chopped strand glass fibers. The outer surface includes a co-extruded cap stock that is relatively smooth and exhibits a relatively low coefficient of friction. Internal walls define a central channel useful for water jetting, and peripheral channels useful for electrical, plumbing and mechanical lines. The internal structures exhibit roughness, bumpiness and a relatively high coefficient of friction for an extruded plastic. A groove may be formed in the pile adjacent to an end for resistance to uplift.

A process for preparing a fiber reinforced thermoplastic is disclosed. The process includes melting a first thermoplastic and a second thermoplastic in a melting zone of a twin-screw processor, feeding at least one continuous fiber downstream of the melting zone into a melted mixture of the first thermoplastic and the second thermoplastic, incorporating the at least one continuous fiber into the melted mixture in a mixing zone, the mixing zone including at least one wave element having a continuous outer surface in the form of a helical wave, and obtaining the fiber reinforced thermoplastic from the twin screw processor. Further, a fiber reinforced thermoplastic composition prepared by an extrusion process the composition having a density between 1.3 g / cc to 1.7 g / cc and a flexural modulus of at least 4000 MPa is disclosed.

A thermoplastic folded honeycomb structure is described which is produced from a material by plastic deformation perpendicular to the plane of the material to thereby form half-hexagonal cell walls and small connection areas. The cell walls in L-direction of the honeycomb core have a wavy shape with an amplitude of about 10% of the cell wall length. A zero slope of the wavy shape at the cell wall connections allows an optimal shear load transfer between the cell walls. By folding in the direction of conveyance the wavy cell walls meet to thereby form the honeycomb structure.

Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head includes a metal body portion including a front portion having a peripheral face portion surrounding an opening. A face plate is set in the opening and includes a metal bezel welded to the opening and a strike assembly set in the bezel. The strike assembly includes an outer metal sheet welded to the metal bezel, an inner metal sheet welded to the metal bezel, and an intermediate composite sheet disposed between the outer metal sheet and the inner metal sheet. The intermediate composite sheet includes a fiber reinforced thermoplastic having a plurality of discontinuous fibers transversely aligned. Other examples and embodiments may be described and claimed.

This invention relates to a hybrid thermoplastic fiber and its preparation method, applicable to the field of polymer-based composite materials technology. The hybrid fiber is composed of thermoplastic resin and uncured epoxy resin, and is prepared by wet spinning. Specifically, the thermoplastic resin and uncured epoxy resin are stirred in a ratio of 1:1 to 5:1 to obtain a mixed powder; the mixed powder is then wet-spun to obtain the hybrid thermoplastic fiber. The advantages of this invention are that the hybrid fiber can act as a shaped carbon fiber preform and as a resin guide during liquid molding, improving the toughness of carbon fiber composites without sacrificing other mechanical properties and heat resistance.

A process for preparing a fiber reinforced thermoplastic is disclosed. The process includes melting a first thermoplastic and a second thermoplastic in a melting zone of a twin-screw processor, feeding at least one continuous fiber downstream of the melting zone into a melted mixture of the first thermoplastic and the second thermoplastic, incorporating the at least one continuous fiber into the melted mixture in a mixing zone, the mixing zone including at least one wave element having a continuous outer surface in the form of a helical wave, and obtaining the fiber reinforced thermoplastic from the twin screw processor. Further, a fiber reinforced thermoplastic composition prepared by an extrusion process the composition having a density between 1.3 g / cc to 1.7 g / cc and a flexural modulus of at least 4000 MPa is disclosed.

The invention provides a basalt fiber composite rigid polyvinyl chloride drainage pipe, and relates to the technical field of composite materials, the basalt fiber composite rigid polyvinyl chloride drainage pipe comprises the following preparation raw materials by weight: 30-58 parts of rigid polyvinyl chloride, 10-40 parts of basalt fiber-thermoplastic plastic masterbatch, 10-20 parts of nitrile rubber, 13-75 parts of an inorganic filler, 0.2-2 parts of a stabilizer, and 1.2-10 parts of a processing aid; wherein the basalt fiber-thermoplastic plastic master batch is obtained by melting, extruding and granulating modified basalt fiber and thermoplastic plastic; the modified basalt fiber is obtained by grafting a free radical polymer on the surface for modification treatment. Through surface grafting modification treatment, the surface polarity of the fiber master batch is improved, and the interfacial compatibility of the fiber master batch and a UPVC matrix is remarkably improved; a polymer layer formed through grafting modification absorbs external impact energy, the raw material formula is optimized, nitrile rubber is added to be matched with basalt fiber-thermoplastic plastic master batches for use, the elongation at break of the pipe is increased, and the impact resistance is improved.

A honeycomb core, formed from a plurality of polygonal cells arranged in an array. Each polygonal cell has lateral cell walls, the lateral cell walls of each polygonal cell forming a polygonal ring, the lateral cell walls being composed of a sheet material, the sheet material being a symmetric three-layer or five-layer thermoplastic co-extruded sheet material having an inner central or core layer and outer layers. The symmetric three-layer or five-layer thermoplastic co-extruded sheet material provides improved mechanical properties compared to a simple sheet material.

Improved reinforced thermoplastic hoses exhibiting improved layer adhesion, improved burst pressure response, and better fitting retention are provided. High quality adhesion between tube, cover, and reinforcement layers is exhibited. Improved methods of making reinforced thermoplastic hoses to reduce use of SVHC chemicals and improve manufacturing efficiency are also provided. The thermoplastic hoses are suitable for pneumatic and hydraulic applications.

A TPE novel thermoplastic rubber flexible cable disclosed by the present invention comprises a tensile conductor, an insulation shielding sleeve and an outer sleeve, the outer sleeve is internally provided with a buffer filling layer and a tear-resistant belt, a high temperature resistant layer is arranged between the outer sleeve and the insulation shielding sleeve, and the high temperature resistant layer is composed of a polyimide nanofiber woven belt and an outer sleeve layer. The polyimide nanofiber woven belt and the outer sleeve layer successively sleeve the outer layer of the tensile conductor, so that instantaneous high temperature can be blocked, and the temperature resistance of the tensile conductor is enhanced. The hBN / TPE composite material is adopted, the temperature resistance limit is broken through, the cable can resist the temperature from 130 DEG C to 150 DEG C, the heat resistance limit of the cable is improved, and thermal aging is relieved; high tear resistance is achieved through dynamic crosslinking of SEBS / TPU, the tear strength is larger than or equal to 25 kN / m, and the mechanical performance is improved through cooperation of the tear-resistant layer of the bionic three-dimensional woven structure and the gradient buffer filling layer; and the bending life, the tensile strength and the temperature resistance of the cable are superior to those of a traditional TPE cable, and international standards such as IEC, UL and ISO are met.

The present invention relates to a composite material obtained by in situ polymerization of a thermoplastic resin with additives with a fibrous material. More particularly the present invention relates to a polymeric composite material obtained by in-situ polymerization of a thermoplastic (meth)acrylic resin and a fibrous material utilizing additive technologies to improve properties such as surface properties, and its use, and processes for making such a composite material and manufactured mechanical or structured part or article comprising this polymeric composite material.

A method for forming a shaped battery can include: adding electrolyte to a dry battery cell, shaping the battery cell, relieving stress and / or strain from the battery cell, curing the electrolyte, and / or injection moulding a thermoplastic or thermoset around the battery cell. A battery cell can include a cathode, an anode, a separator disposed between the cathode and the anode, a gel polymer electrolyte, an overmoulded housing surrounding the cathode, the anode, the separator, and the gel polymer electrolyte, where the battery cell comprises a non-zero radius of curvature about at least 1 axis.

The invention belongs to the technical field of biodegradable materials, and discloses a preparation method and application of aluminum ion cluster dynamic cross-linked toughened PBAT / TPS photo-thermal repair function thermoplastic plastic. The preparation method comprises the following steps: preparing the aluminum ion cluster, preparing the pre-plasticized starch, carrying out melt blending on the obtained pre-plasticized starch and the poly (butylene adipate-co-terephthalate), cooling and drying. Metal ions are complexed with lignin and thermoplastic starch TPS to form a metal ion dynamic network structure, so that the mechanical property of the material is remarkably improved, and the material is endowed with excellent photo-thermal repair performance. Meanwhile, the lignin and the starch are biomass materials, have degradability, are low in cost and easy to obtain, can effectively reduce the cost of the composite plastic, and are suitable for industrial large-scale production.

The invention relates to a preparation method of a highly wear-resistant super-hydrophobic coating and the coating, the preparation method comprising the following steps: hydrophobic modification of SiO2 and glass fiber powder; mixing hydrophobic nano-spherical SiO2 particles, hydrophobic micron-spherical SiO2, hydrophobic glass fiber powder, epoxy resin and ethyl acetate to prepare a super-hydrophobic coating; sequentially cleaning a substrate with deionized water and anhydrous ethanol; hot-pressing a thermoplastic plastic screen onto the surface of the substrate; spraying the super-hydrophobic coating onto the treated substrate surface, and then using an electrostatic flocking device to adsorb the hydrophobic fiber composite powder onto the coating surface, and curing to prepare the coating; the super-hydrophobic coating prepared by the method has a microscopic morphology consisting of mesh ribs and a cured super-hydrophobic composite filled in the mesh structure, has excellent hydrophobic performance, outstanding wear resistance and low preparation cost.

The utility model discloses a heating device for quickly activating a pressure-sensitive adhesive tape and a thermoplastic or thermosetting adhesive tape. The heating device comprises a microwave heating head, a microwave transmitting assembly and a motion driving assembly, the microwave emission assembly is connected with the microwave heating head and is used for outputting microwaves to the microwave heating head; the motion driving assembly is connected with the microwave heating head and used for achieving alignment and motion of the microwave heating head and the heated assembly. The microwave heating head is driven by the motion driving assembly to heat the heated assembly. According to the utility model, through the cooperation of the microwave emission assembly and the motion driving assembly, a pressure-sensitive adhesive tape and a thermoplastic or thermosetting adhesive tape are flexibly heated according to a set motion trail by allocating microwaves with appropriate power, and the heating objects applied by the device are the pressure-sensitive adhesive tape and the thermoplastic or thermosetting adhesive tape.

The invention belongs to the technical field of TPV materials, and particularly relates to an anti-ultraviolet halogen-free flame-retardant TPV material and a preparation method thereof. The TPV material comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 10-30 parts of an ethylene-vinyl acetate copolymer, 20-30 parts of polypropylene, 50-100 parts of paraffin oil, 1-5 parts of an antioxidant, 1-3 parts of a cross-linking agent, 1-5 parts of a lubricant and 10-20 parts of functional phosphate. According to the invention, a phosphate structure with a flame-retardant effect and a benzimidazole structure with an ultraviolet absorption function are introduced into the same molecule to realize multi-functionalization of the modifier, so that the prepared TPV material has excellent flame-retardant and anti-ultraviolet properties.

A process can be used for the functionalization of graphene material by mixing graphene material with at least one silane. The functionalized graphene material is useful, for example, in thermoplastics.

The invention discloses thermoplastic epoxy glue capable of resisting strong acid and strong alkali as well as a preparation method and application of the thermoplastic epoxy glue. Wherein the thermoplastic epoxy glue consists of the following components in parts by weight: 38.2-44 parts of bisphenol A epoxy resin; 19.2 to 22 parts of novolac epoxy resin; 7.7 to 8.5 parts of carboxyl-terminated nitrile rubber; 2.85 to 3.5 parts of nano silicon dioxide powder; 1.4 to 1.8 parts of a silane coupling agent; 4 to 4.5 parts of dicyandiamide; 1.4 to 1.9 parts of a urea accelerator; 53.5 to 60 parts of methyl ethyl ketone; and 22 to 28 parts of toluene. The thermoplastic epoxy glue can tolerate strong acid and strong alkali, the surface is smooth and free of initial adhesion after curing, construction is convenient, firm adhesion can be achieved through hot pressing under the appropriate temperature condition, the bonding strength is high, and good thermoplasticity is achieved. The thermoplastic epoxy glue disclosed by the invention can be suitable for severe environments with harsh requirements.