1402 results about "Thermoplastic" patented technology

The invention belongs to the technical field of polymers, and discloses a thermoplastic modified insulating material as well as a preparation method and application thereof, the preparation method comprises the following steps: mixing polypropylene, a grafting monomer, an initiator, an antioxidant, optional toughening resin, optional dispersing agent and optional other auxiliaries, and melting and mixing to obtain the thermoplastic modified insulating material. According to the invention, polypropylene is subjected to graft modification, so that the prepared thermoplastic insulating resin has good insulating property and mechanical property, and is suitable for insulating materials, especially cable insulating materials.

A thermoplastic polyurea comprising an aliphatic diamine unit (A) that has a linear aliphatic hydrocarbon group and an aliphatic diamine unit (B) that has a C7-12 methyl-branched aliphatic hydrocarbon group on the main chain.

The invention relates to a multi-layer body, comprising (I) a carrier layer made of a special thermoplastic polycarbonate molding compound and (II) a metal layer which has one or more recesses. The invention also relates to a lighting or display unit, comprising the multi-layer body and a light source, to a method for producing the multi-layer body, and to the use of the special thermoplastic polycarbonate molding compound as a carrier layer of such a multi-layer body.

The invention relates to the technical field of plastic material forming and processing, in particular to an internal mixer for producing thermoplastic elastomers, which comprises a main body, a processing part, a movable weight part, a feeding module, a linkage part, an auxiliary discharging part, a control host and a conveying part, the main body comprises a supporting seat, and the upper side of the supporting seat is fixedly connected with a box shell; an internal mixing chamber is formed in the inner side of the box shell, the upper side of the internal mixing chamber communicates with a through opening, rail frames are fixedly connected to the front side and the rear side of the lower end face of the box shell correspondingly, rail blocks are slidably connected to the inner sides of the rail frames correspondingly, and a discharging plate located on the inner side of a discharging opening of the box shell is fixedly connected to the upper sides of one set of rail blocks. Through the main body, the movable ram part, the feeding module, the linkage part and other structures, when the internal mixer is used for producing thermoplastic elastomers, various raw materials can be quickly and efficiently added at regular time under the condition that the ram is not completely lifted up through limited separation design of the ram, and the raw materials in the internal mixing chamber are prevented from being splashed out during feeding.

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 method for enhancing the laser transmission welding strength of thermoplastic plastics, and relates to the technical field of plastic laser welding, and the method for enhancing the laser transmission welding strength of the thermoplastic plastics comprises the following steps: firstly, degreasing and decontaminating an upper to-be-welded part and a lower to-be-welded part; then the degreased and decontaminated upper to-be-welded part and the degreased and decontaminated lower to-be-welded part are subjected to ultraviolet light activation treatment; then coating the surface of a lower part to be welded with a coating to construct a rigid-flexible interface layer, wherein the coating is a mixture formed by compounding oxidized carbon nanotubes, mussel adhesion protein and deionized water according to the mass ratio of (0.1-5): 10: 100; then the upper to-be-welded part and the lower to-be-welded part are stacked together, and laser transmission welding is conducted under inert gas protection; and after welding is completed, cooling and forming are conducted. When the rigid-flexible interface layer is constructed, through the synergistic effect of the oxidized carbon nanotubes and the mussel adhesion protein, the welding strength and oxidation resistance of the plastic weldment can be improved, and the service life of the weldment can be prolonged.

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 present invention relates to bio-based bisphenol monomer of formula I and process of preparation thereof. Specifically, the present invention relates to bio-based bisphenol monomers of formula I containing multiple alkoxyl groups, and polyphenols. The bisphenol monomers of formula I contain built-in methoxyl groups, which represent latent phenolic hydroxyl groups and could conveniently be de-blocked to phenolic hydroxyl groups leading to formation of polyphenols containing catechol / phloroglucinol units with anti-oxidant properties and are potentially useful in various applications like cosmetics, polymer additives and so on. Further, the present invention relates to process of preparation of polymers using bisphenol monomer of formula I as valuable building blocks wherein the high performance thermoplastics are poly(ether sulfone)s, poly(ether ether ketone)s, polyesters, polycarbonates, polyphosphonates, etc. and thermosetting resins are epoxies, cyanate esters, phthalonitriles, propargyl ethers, etc.

A binder component for a feedstock compound for use in a shaping and sintering process comprises b-i) 3 to 70% by volume of at least one first thermoplastic and / or wax-type material, and b-ii) 30 to 97% by volume of at least one second thermoplastic and / or wax-type material, based on the total volume of the binder component b). The first thermoplastic and / or wax-type material and the second thermoplastic and / or wax-type material differ in at least one property which property is selected from (1) solubility in a solvent, (2) degradability induced by heat and / or a reactant, and (3) volatility. The first thermoplastic and / or wax-type material is less soluble, less degradable or less volatile than the second thermoplastic and / or wax-type material. Tcross is higher by not more than 60 K than TP, wherein TP is the DSC melt peak temperature of the binder component b), and Tcross is the temperature at the intersection between the storage modulus G′ curve and the loss modulus G″ curve in a dynamic viscoelasticity measurement of the binder component b). The feedstock compound containing the binder component and non-organic sinterable particles is used in an additive manufacturing process, an injection molding process, a pressing process or a casting process.

The invention relates to the technical field of high polymer materials, in particular to polyolefin thermoplastic elastomer / silicone rubber thermoplastic vulcanized rubber as well as a preparation method and application thereof. According to the invention, the polyolefin thermoplastic elastomer grafted silane or / and the polyolefin thermoplastic elastomer grafted maleic anhydride / glycidyl ester terpolymer, the platinum catalyst and the inhibitor are added during blending and dynamic vulcanization of the silicone rubber and the polyolefin thermoplastic elastomer to regulate and control the dynamic vulcanization process; therefore, the thermoplastic vulcanized rubber with ideal mechanical properties is obtained. The polyolefin thermoplastic elastomer / silicone rubber thermoplastic vulcanizate provided by the invention is high in strength, good in elasticity, good in toughness, smooth in surface, fine in phase state, good in somatosensory compatibility and good in skin touch, and also has good stain resistance, sweat resistance, yellowing resistance and ultraviolet resistance.

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 discloses a high and low temperature resistant thermoplastic thermoplastic vulcanizate (TPV) and application thereof. The thermoplastic TPV comprises ethylene propylene diene monomer, polypropylene, a softening agent, an antioxidant, modified fluoroplastic, fluoroplastic master batch, sodium bicarbonate and a cross-linking agent, wherein the modified fluoroplastic is prepared from a modifier, a grafting agent, hydroxyl polyhedral oligomeric silsesquioxane and a fluorine monomer. A grafting agent containing unsaturated double bonds and fluoroplastic are subjected to an addition reaction, triazine and polyhedral oligomeric silsesquioxane functional groups are introduced, and the temperature resistance and mechanical strength of the material are remarkably improved. The TPV provided by the invention has excellent high and low temperature resistance, tensile strength and elongation at break, and good compression set and brittleness temperature performance.

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 present invention relates to: a thermoplastic polyolefin-based film that is formed from a resin composition containing a thermoplastic polyolefin as a main component, has a storage elastic modulus E' of 50 MPa or greater at 150°C, and has a storage elastic modulus E' of 1 MPa or greater at 270°C; and a method for producing said thermoplastic polyolefin-based film.

The invention relates to the field of thermoplastic polyester elastomer materials, in particular to a preparation method and application of a high-melting-point high-strength thermoplastic polyester elastomer, the preparation method comprises the following steps: S1, mixing: adding an antioxidant, a catalyst and BDO into a mixing kettle, and stirring for 20-30 minutes at 160-200 DEG C to obtain a mixing kettle product; s2, pre-polycondensation: putting the material mixing kettle product obtained in the step S1 into a pre-polycondensation kettle, pumping molten polyester, polyether and a modifier into the pre-polycondensation kettle after passing through a pipeline, stirring for 20-30 minutes, heating to 230-250 DEG C, and reacting for 1-3 hours under the pressure of-0.4 kg / cm < 2 > to-0.7 kg / cm < 2 >, so as to obtain a prepolymer; and S3, polycondensation: pumping the prepolymer obtained in the step S2 into a polycondensation kettle, reacting at 240-260 DEG C for 1-3 hours under the vacuum degree of 20-50 Pa, and carrying out cold cutting and grain-sized dicing to obtain the high-melting-point high-strength thermoplastic polyester elastomer. The high-melting-point and high-strength thermoplastic polyester elastomer produced by the invention not only has higher melting point and melt strength and excellent mechanical properties, but also has more stable processability and can be applied to preparation of air fiber mats.

A container including a paper-based cradle, a paper-based insert, and a thermoplastic film. The cradle has exterior corner panels that form a transition between the exterior end panels and exterior side panels. The cradle and insert are held together by the thermoplastic film that is thermoformed into conformance with the cradle and insert. The exterior corner panels at the junctures between the exterior end panels and exterior side panel can reduce the potential for defects in the thermoformed thermoplastic film.

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.

The invention provides a high-strength and high-thermal-plastic-temperature polysiloxane polyurea thermoplastic elastomer containing dynamic acetal amine bonds and a preparation method of the high-strength and high-thermal-plastic-temperature polysiloxane polyurea thermoplastic elastomer. According to the invention, the diisocyanate and macromolecular polydimethylsiloxane copolymer is used as a soft segment, the diisocyanate and 1, 3-bis (3-aminopropyl) tetramethyldisiloxane copolymer is used as a hard segment, and the polyhydroxy compound containing dynamic acetal amine bonds is used as a cross-linking agent, so that the prepared elastomer has good mechanical properties and high thermal plasticizing temperature, and can be used for preparing the polyurethane elastomer. Repeated processing can be realized; the preparation process is simple and feasible, and the product has stable performance and good reproducibility and is suitable for popularization and application.

The utility model discloses a multi-layer weft reinforced steel skeleton plastic composite pipe, which relates to the field of steel-plastic composite pipes and comprises a pipe body with thermoplastic plastic as a base body, and an internal reinforced phase is arranged between the inner wall and the outer wall of the pipe body. The internal reinforcement phase comprises a warp layer and a weft layer, the warp layer is composed of a plurality of steel wires arranged in the axial direction of the pipe body, and the weft layer is composed of steel wires spirally wound in the circumferential direction of the pipe body; a plurality of warp steel wires and weft steel wires are spirally wound and welded to form a steel mesh framework; at least two layers of weft layers are continuously arranged, and the contacted weft layers are arranged in the same rotating direction. According to the utility model, the at least two weft layers are spirally wound on the warp layer, the contacted weft layers are arranged in the same rotating direction, and the outer weft steel wires are arranged on the inner weft steel wires in a contact manner, so that the ring stiffness of the pipe is improved, and high internal pressure resistance and external pressure resistance are provided.

A method of forming a tensioner arm bracket, chain guide, snubber or tensioner arm with two shot injection molding. The tensioner arm bracket, chain guide, snubber or tensioner arm each having a body and a chain sliding face. The body of the tensioner arm bracket, chain guide, snubber or tensioner arm bracket is formed of by a first shot of thermoplastic polymer or thermosetting resin and the chain sliding face is formed by a second shot of thermoset elastomer which is overmoulded onto the body. The body of the component is made of either a thermoplastic or thermosetting resin is fixed to its chain sliding face either by one or more of an anchor point generated by undercuts in the body and / or chemical bonds between the dissimilar materials.

The invention relates to thermoplastic vulcanized rubber as well as a preparation method and application thereof. The thermoplastic vulcanized rubber is prepared from the following raw materials in parts by weight: 8 to 40 parts of heat-resistant rubber, 60 to 90 parts of plastic, 1 to 6 parts of anti-ant agent and 0.1 to 3 parts of vulcanizing agent. The invention provides a drug aggregation type thermoplastic vulcanizate which takes cross-linked rubber as an island phase and plastic as a marine phase, and most of pesticides are aggregated in a dispersed rubber phase. The rubber is stable in property, and most of the pesticide is concentrated in a dispersed rubber phase by means of rapid shearing and crosslinking of the rubber in the processing process by means of good compatibility of the rubber and the pesticide; the dispersion phase material in the thermoplastic vulcanized rubber is used for wrapping the pesticide, so that the volatilization, decomposition, oxidation and loss rate of the pesticide in the environment can be effectively inhibited, the pesticide can play a role more enduringly, and the utilization rate of the pesticide is improved. In addition, the preparation process is simple, the preparation cost can be reduced, the preparation time can be shortened, and the preparation method has great application value in industrial production.

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.