1819 results about "Thermoplastic elastomer" patented technology

The invention relates to the technical field of polyurethane films, in particular to a long-acting, stable, flexible, impact-resistant and resistance-reducing protective film and a preparation process thereof. According to the invention, the raw materials such as polyethylene glycol, a modified fluorosilicone monomer, isophorone diisocyanate, hydroxyethyl acrylate, an acrylic antifouling monomer, dodecafluoroheptyl methacrylate and the like are added to prepare the anti-drag coating. Mixing a polyurethane thermoplastic elastomer, aminopropyl polydimethylsiloxane, an antioxidant and an ultraviolet light absorber, and carrying out melt extrusion and blow molding to form a film, so as to obtain a flexible impact-resistant base film; and uniformly coating the surface of the flexible anti-impact base film with the anti-drag coating, and carrying out ultraviolet curing to obtain a finished product. The finished product prepared by the invention has good impact resistance, and can effectively reduce frictional resistance, so that the finished product has wide application prospects in the technical field of polyurethane films.

The invention provides a high-strength, light and supercritical foaming fabric and a preparation method thereof, complete fibers used by the fabric comprise core layer fibers and a skin layer material, the outer side of the core layer fibers is uniformly coated with the skin layer material, and the skin layer material can be foamed; the core layer fiber is at least one of aramid fiber, polyarylate fiber, polyimide fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and polyamide fiber; and the skin layer is made of thermoplastic elastomer resin. The preparation method comprises the following steps: uniformly coating the outer side of the core layer fiber with the skin layer material, and then carrying out supercritical foaming on the skin layer material. According to the invention, the contradictory technical requirements of the fabric for shoes on strength, light weight, comfort and the like are solved in a simple mode; the body strength of the fiber for the shoes can be kept, and the characteristics of light weight and air permeability of the foaming fabric are also achieved; the difficulty of direct foaming of the fabric / fiber for shoes is reduced, and the vamp fabric and the shoe article which are uniform in foaming, breathable, light in weight, high in strength and soft can be obtained.

A method of manufacturing a foam component includes generating, via a computer aided design (CAD) software, three-dimensional data corresponding to the foam component. The method further includes scaling, using the CAD software, the three-dimensional data to correspond to a preform. The preform is smaller than the foam component based on a scaling factor. The method further includes fabricating the preform from a thermoplastic elastomer and adding a foaming agent to the preform. The method further includes foaming the preform by exposing the preform to a target temperature for a target time via a heat generating device.

The invention discloses an anti-shrinkage light, soft and elastic sole foaming material and a preparation method thereof, and belongs to the technical field of footwear products. The light, soft and elastic sole foaming material is formed by chemically foaming an EVA (Ethylene Vinyl Acetate) composite raw material, the EVA composite raw material is prepared from 50 to 70 parts of EVA, 20 to 40 parts of olefin thermoplastic elastomer, 10 to 20 parts of styrene elastomer, 1.5 to 3 parts of maleic anhydride grafted ethylene-octylene copolymer compatilizer, 0.4 to 0.8 part of peroxide cross-linking agent, 3 to 4 parts of foaming agent, 1 to 1.5 parts of zinc oxide, 1 to 1.5 parts of polyethylene wax substance and 0.5 to 1.5 parts of poly (butylene succinate). 0.3 to 1 part of polyamide 12 microspheres and 2 to 3 parts of nano montmorillonite. The foaming material can resist shrinkage when being used as a shoe sole part, and has good rebound performance and the like, so that the high-quality requirement of sneakers, the mass production stability and the like are met.

The invention discloses a thermoplastic elastomer POE open-cell foam material and a preparation method thereof. The thermoplastic elastomer POE open-cell foam material comprises the following components in percentage by mass: 60.0%-90.0% of a thermoplastic elastomer POE base material, 5.0%-20.0% of a second component, 3.0%-10.0% of a fiber functional filler, 1.5%-3.0% of a compatilizer, 0.2%-2.0% of a cross-linking agent, 0.2%-2.0% of a foam stabilizer and 0.1%-3.0% of a composite foaming agent. The composite foaming material is prepared by adopting continuous extrusion physical foaming, wherein the composite foaming agent is injected in stages in the extrusion process to realize controllable foaming. The obtained foam is high-performance foam with the aperture ratio being greater than or equal to 93%, the foaming ratio being 20-25 times, the uniform foam hole size being 150-200 microns, the adsorption performance being greater than or equal to 30 g / g, the compression rebound rate being greater than or equal to 93% and the shrinkage rate being smaller than or equal to 3%, and the application range of the POE foam material in the field of environmental protection is widened.

The invention discloses a rare earth hybrid flame retardant as well as a preparation method and application thereof, and belongs to the technical fields of inorganic synthesis, flame retardants and high polymer materials. Rare earth hydroxide is successfully loaded on the surface of a flame retardant through an in-situ deposition method to prepare a rare earth hybrid flame retardant, and the rare earth hybrid flame retardant is further dispersed in a high polymer material matrix through melt blending to prepare the flame-retardant high polymer composite material. The hybrid flame retardant prepared by a deposition method can significantly improve the dispersion compatibility of the flame retardant in a high polymer material, and effectively alleviates the mechanical property degradation caused by the filling of the traditional flame retardant; based on the gas phase-condensation phase synergistic effect of the rare earth hydroxide and the flame retardant, the flame retardance and smoke suppression performance of the high polymer material can be synchronously improved. The rare earth hybrid flame retardant can be applied to various high polymer materials such as polyolefin cables, thermoplastic elastomers, polyurethane and the like, can synchronously improve flame retardance, smoke suppression, mechanical performance and comprehensive performance, and has a wide application prospect.

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.

The invention provides an ultralight high-resilience cushioning transparent EVA composite chemical foaming material. The ultralight high-resilience cushioning transparent EVA composite chemical foaming material is prepared from the following raw materials in parts by mass: 30-60 parts of high-transparency modified TPX, 30-50 parts of an ethylene-vinyl acetate copolymer, 7-25 parts of a thermoplastic elastomer TPE, 5-16 parts of an olefin block copolymer, 5-10 parts of a wear-resistant agent, 0.2-0.5 part of stearic acid, 0.2-1 part of zinc stearate, 0.3-1.5 parts of an odorless bridging agent and 3.5-8 parts of a transparent foaming agent, the high-transparency modified TPX is prepared from high-transparency TPX, EVOH, ethylene propylene diene monomer and stearic acid. The EVA composite chemical foaming material provided by the invention has the advantages of ultralight weight, low shock absorption, high resilience, high transparency and high energy feedback, keeps the wearing comfort of shoes, protects a consumer from fatigue, pain and even injury caused by the material shock absorption problem in the exercise process, is high in cost performance, and meets the comprehensive requirements of the consumer.

The invention relates to the field of automobile part manufacturing, and particularly discloses a barrier layer direct bonding type TPE material for an automobile air conditioner pipeline system and a preparation method and application of the barrier layer direct bonding type TPE material. The TPE material is prepared from the following raw materials: a thermoplastic elastomer TPE, PA, EVOH, polyether block amide, a glycidyl methacrylate grafted olefin copolymer elastomer, a toughening compatilizer, composite modified montmorillonite, a cold-resistant additive, an antioxidant and paraffin oil. Wherein the composite silane coupling agent, lauric acid and N, N '-carbonyldiimidazole are adopted to modify the nano-montmorillonite, so that the dispersity of nano-montmorillonite particles is improved, the formation of aggregates is effectively reduced, and the mechanical property of the material is enhanced; the polyether block amide, the glycidyl methacrylate grafted olefin copolymer elastomer and the toughening compatilizer have a synergistic effect, so that good adhesiveness of the TPE material and the barrier layer is realized.

The invention relates to the technical field of flour waterproof packaging bags, in particular to a wear-resistant waterproof packaging bag for flour processing and production. An outer layer material of the packaging bag comprises the following raw materials in parts by mass: 75-85 parts of polyamide, 15-25 parts of a thermoplastic elastomer, 2-5 parts of nano calcium carbonate, 0.2-0.25 part of an antioxidant, 1-3 parts of a nucleating agent and 5-10 parts of a citrate plasticizer; the middle layer material of the packaging bag comprises the following raw materials in parts by mass: 55-65 parts of a polyamide monomer, 35-45 parts of a polyether monomer and 0.5-1.5 parts of a catalyst; the inner layer of the packaging bag is made of 100 parts of food-grade low-density polyethylene. According to the flour packaging bag, by optimizing the material formula and the preparation technology, balance of flexibility and rigidity is achieved, abrasion resistance and water resistance are remarkably enhanced, aging resistance stability is improved, accurate technology guarantee performance is achieved, efficient bonding and antistatic design are achieved, flour quality and transportation safety are guaranteed, and potential risks are reduced.

The invention belongs to the technical field of thermoplastic elastomer-based electromagnetic shielding foaming materials, and provides a thermoplastic elastomer-based foaming composite material with excellent conductivity and electromagnetic shielding performance and a preparation method of the thermoplastic elastomer-based foaming composite material. The foaming composite material is prepared by fully mixing the following components in parts by weight through an extruder, extruding, foaming and molding: 100 parts of thermoplastic elastomer resin, 0.8-8 parts of conductive functional filler, 0.1-10 parts of a coupling agent, 0.1-10 parts of a photoinitiator, 0.1-10 parts of a foam stabilizer and 0.2-8 parts of a composite foaming agent. The thermoplastic elastomer-based foaming composite material has excellent conductivity and electromagnetic shielding performance, also has good mechanical properties, is highly continuous and stable in production process, is safe and free of environmental pollution, and is suitable for industrial large-scale production.

The invention discloses a preparation method and application of circumferentially limited supercritical foaming self-packaging TENG, and the preparation method comprises the following steps: uniformly mixing a PDMS precursor and a curing agent, pouring the mixture into a mold, and putting the mold into a vacuum oven for curing to obtain a PDMS film; adhering the PDMS film to the middle position of the PI film through a double-sided nickel conductive adhesive tape, then putting the PDMS film into a mold, putting a thermoplastic elastomer on the upper layer, and performing hot pressing by using a vacuum auxiliary hot press to obtain a prefabricated sample; putting the prefabricated sample into a supercritical foaming reaction kettle, controlling the temperature to 70-130 DEG C, injecting supercritical fluid into the foaming reaction kettle, after the prefabricated sample and the supercritical fluid form a saturated and stable blending system, maintaining for 0.8-1.5 hours, taking out the blended system, and naturally cooling to room temperature, so as to obtain the TENG. The preparation method has the beneficial effects that the self-assembled and self-packaged TENG with the bionic dome structure is successfully prepared through cooperation of a supercritical fluid technology and a limited foaming strategy, and the technical scheme of the self-assembled and self-packaged TENG obtains breakthrough progress in the aspects of the preparation process, the structural design and the environmental adaptability.

The invention provides a non-cured asphalt-based waterproof coating and a preparation method thereof. Wherein the non-cured asphalt-based waterproof coating comprises the following raw material components in parts by weight: 45-70 parts of asphalt; 10 to 20 parts of a compatilizer; 3-10 parts of a thermoplastic elastomer; 3-5 parts of styrene butadiene rubber; 3-5 parts of resin; 2-5 parts of wax powder; 5 to 20 parts of modified graphene oxide; 12-25 parts of an inorganic filler; 0.2 to 0.8 part of a dispersant; wherein the modified graphene oxide is alkylamine modified graphene oxide. According to the non-cured asphalt-based waterproof coating provided by the invention, alkylamine modified graphene oxide is introduced into the waterproof coating, has better compatibility with other components, and forms more heat conduction routes in the non-cured asphalt-based waterproof coating, so that the heat conductivity coefficient of the waterproof coating is effectively improved, and the heating time and heating temperature of coating construction are reduced; no smoke is generated during construction, the environmental protection property is high, and fire of the non-curing coating caused by high-temperature heating can be effectively reduced.

A joint member having a thermoplastic elastomer composition including components (A), (B), and (C). Component (A): a hydrogenated product of a block copolymer including at least two polymer blocks composed primarily of a vinyl aromatic compound and at least one polymer block including butadiene, wherein, in the hydrogenated product of the block copolymer, a proportion of a hydrogenated product (A1) of a block copolymer having a weight-average molecular weight of 300,000 or more is 30% to 100% by mass, Component (B): a hydrocarbon rubber softener, Component (C): a polypropylene resin, Component (D): a crosslinking agent.

The invention provides a thermoplastic hot melt adhesive for bonding cover plates of household appliances and a preparation method of the thermoplastic hot melt adhesive. The thermoplastic hot melt adhesive for bonding cover plates of household appliances comprises the following components in parts by mass: 40-70 parts of a high-polarity thermoplastic elastomer; 5 to 10 parts of a copolymer containing amorphous alpha-olefin; 10 to 50 parts of tackifying resin with a high softening point; 0.5 to 2 parts of an antioxidant; 0.5 to 2 parts of a light stabilizer; 0.2 to 0.5 part of a silane coupling agent; wherein the high-polarity thermoplastic elastomer is at least one of TPU, EAA, TPEE, ACM and PA. The bonding performance is improved through the high-polarity thermoplastic elastomer; the copolymer containing the amorphous alpha-olefin promotes wetting and permeation on the surface of an adhered object, so that the adhesion is improved, and the toughness of the high-temperature-resistant hot melt adhesive is improved; physical cross-linking curing is carried out through temperature reduction, the curing process is not directly influenced by humidity, and the sealing requirement of sizing equipment for water vapor is reduced.

The invention provides a light super-soft fire-resistant flame-retardant optical cable and a preparation method thereof. The light super-soft fire-resistant flame-retardant optical cable sequentially comprises a high-temperature-resistant optical fiber, a filling layer, a flame-retardant loose tube, a reinforcing layer, a heat insulation layer and a fire-resistant flame-retardant layer from inside to outside, the fireproof flame-retardant layer comprises the following preparation raw materials in percentage by mass: 55-65% of plasma activated mineral powder, 25-35% of a thermoplastic elastomer base material subjected to irradiation crosslinking treatment, 8-12% of a phosphorus-nitrogen intumescent flame retardant and 1.5-2.5% of a silane coupling agent; the nano mineral powder comprises a magnesium aluminum silicate compound, and the thermoplastic elastomer matrix comprises a blend of SEBS (Styrene-Ethylene-Butylene-Styrene) and TPU (Thermoplastic Polyurethane). The fire-resistant flame-retardant layer forms a ceramic protection layer at high temperature to perform fire-resistant flame-retardant protection and prevent heat transfer, and meanwhile, the heat insulation layer is matched to further prevent heat from being transferred to the cable core, so that the performance of the optical cable is ensured not to be influenced.

The invention relates to the technical field of high polymer material injection molding, and particularly provides a spraying-free button preparation method based on a double-shot injection molding process, and the spraying-free button preparation method based on the double-shot injection molding process is characterized in that through the double-shot injection molding process of polyketone (POK) and thermoplastic elastomer (TPE), temperature gradient control, mold rotation and micropore interface interlocking technologies are combined; and spraying-free, high-gloss, wear-resistant and environment-friendly button manufacturing is realized. The POK base body is subjected to high-temperature injection molding in the first injection mode, the TPE surface layer is subjected to low-temperature injection molding in the second injection mode, mechanical interlocking is formed through micropore filling, and the bonding capacity can be improved by 30% or above. According to the method, a traditional paint baking procedure is omitted, the comprehensive cost is reduced by 15%-20%, VOC emission tends to zero, and the method is suitable for production of decoration parts such as clothes and bags.

The invention discloses an electrode assembly and a preparation method thereof, a self-assembled solid-state battery and a preparation method thereof, and an electric device. The method for preparing the electrode assembly comprises the following steps: (1) preparing a composite solid electrolyte material: the composite solid electrolyte material comprises an inorganic material, a thermoplastic elastomer and a lithium salt, the inorganic material comprises an inorganic ceramic material and / or an inorganic solid electrolyte, and the composite solid electrolyte material is obtained by dry mixing; and (2) applying the composite solid electrolyte material between a pole piece and a release layer for hot pressing so as to obtain the electrode assembly. By adopting the method, the electrode assembly which is good in solid-solid interface contact, high in ionic conductivity, excellent in thermal stability, uniform and compact in solid electrolyte layer thickness, smooth in surface and free of pores can be prepared, and the interface problem in the solid-state battery assembling process is effectively solved; and meanwhile, a flexible solid-state battery interface can be constructed through one-step hot press molding, the interface impedance is reduced, and batch production of the electrode assembly is realized.

The present disclosure relates to a thermoplastic fiber web structure (2a, 2b, 2c, 2d), which forms a support structure through fiber filaments (21a, 21h, 21i, 21k, 21l, 21m, 21n, 21q) that are melt-bonded together, the fiber filaments being formed from a thermoplastic elastomer material. The present disclosure further relates to an automobile interior part comprising a thermoplastic fiber web structure as described above and a sleeve and / or fabric (1a, 1b, 1c, 1d) fastened to the thermoplastic fiber web structure. The thermoplastic fiber web structure forms a support structure by melt extrusion of a thermoplastic elastomer material into a three-dimensional network structure, which has high resilience and recyclability. The automobile interior part, at the same time of ensuring support and comfort, achieves environmental protection, breathability and light weight. In particular, the thermoplastic material is subjected to a physical reaction rather than a chemical reaction during the melt extrusion process, so that the stability in the preparation process is better, and the product can be smoothly and controllably made. In addition, considering that conventional sleeve foaming fastening form cannot be applied to the thermoplastic fiber web structure, a completely novel fastening form is provided for the automobile interior part to match the wrapping of the thermoplastic fiber web structure.

The invention relates to the technical field of modified plastics, in particular to a high-toughness modified plastic and a preparation method thereof. Specifically, the material comprises the following components in parts by weight: 70-90 parts of polypropylene, 30-40 parts of thermoplastic elastomer, 5-15 parts of linear low-density polyethylene, 5-15 parts of polypropylene grafted maleic anhydride and 1-10 parts of stearic acid modified calcium carbonate. The calcium carbonate is further modified, so that the calcium carbonate has better impact strength and tensile strength when being compounded with the polypropylene, the linear low-density polyethylene, the polypropylene grafted maleic anhydride and the thermoplastic elastomer.

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 a high-whiteness EVA chemical foaming sole material and a preparation method thereof, and belongs to the technical field of footwear products. The EVA chemical foaming sole material is formed by chemical foaming of an EVA composite raw material. The EVA composite raw materials mainly comprise 50 to 70 parts of EVA, 20 to 40 parts of an olefin thermoplastic elastomer, 0.4 to 0.7 part of a peroxide cross-linking agent, 2 to 4 parts of an AC foaming agent, 1 to 2 parts of zinc oxide, 0.3 to 0.8 part of 6-hydroxy-1, 2, 3, 4-tetrahydroquinoline, 0.5 to 1 part of nano zinc carbonate and 0.5 to 1 part of pentaerythritol tetrastearate. The whitening effect of the sole material can be realized on the premise of protecting the EVA foaming-crosslinking structure; therefore, the attractiveness of the product is improved, the durability is better, the mechanical properties and other properties of the EVA foamed sole are not influenced, and the high-quality requirements of elasticity, pressure resistance, comfort and the like of sports shoes can be met.

The invention discloses a polypropylene material as well as a preparation method and application thereof. The polypropylene material comprises the following components in parts by weight: 50-90 parts of block copolymerized polypropylene resin, 5-35 parts of a thermoplastic elastomer and 0-3 parts of an antioxidant. The thermoplastic elastomer comprises a low-melting-point thermoplastic elastomer and a high-melting-point thermoplastic elastomer in a weight ratio of 1: (0.2-3); the melting point of the low-melting-point thermoplastic elastomer is not more than 70 DEG C; the melting point of the high-melting-point thermoplastic elastomer is 90-125 DEG C. The specific thermoplastic elastomer is easy to deform, has high molecular chain activity, is easy to permeate by small molecular substances, can promote the adhesive to permeate into the polypropylene material, and also has a relatively strong limiting effect on the molecular chain of the adhesive permeating into the polypropylene material, so that the molecular chain of the adhesive is not easy to pull out, a very strong riveting point is formed, and the service life of the adhesive is prolonged. Therefore, the peel strength between the polypropylene material and the adhesive is improved.

The invention provides an elastic microcarrier as well as a preparation method and application thereof, and belongs to the field of water, wastewater and sewage treatment, the elastic microcarrier comprises the following components in parts by mass: 50-75 parts of thermoplastic elastomer, 25-10 parts of diatomite, 10-5 parts of tourmaline and 15-10 parts of iron-carbon powder. The material has good elasticity, adsorbability, biocompatibility and electrochemical characteristics, and can form a microscopic primary battery effect. The elastic microcarrier is applied to sewage treatment with a membrane bioreactor, pollutants can be removed through physical adsorption, chemical action and biological enhancement, meanwhile, the surface of a membrane is kept clean in combination with flexible scraping, membrane pollution is remarkably slowed down, the running membrane flux is improved, and the service life of the membrane is prolonged. The mechanical damage of the traditional rigid filler to the membrane is avoided, and the service life of the membrane is prolonged. The preparation method of the elastic microcarrier is simple and easy to operate, the elastic microcarriers with uniform specifications can be prepared in batches, and the applicability is high.

The invention provides a magnetic hot-melt flame-retardant damping material. The magnetic hot-melt flame-retardant damping material is prepared from the following raw materials in parts by weight: 5-15 parts of an ethylene-vinyl acetate copolymer; 2-6 parts by weight of butyl rubber; 1-4 parts by weight of a styrene thermoplastic elastomer; 8-15 parts by weight of a tackifier; 7.5-17 parts by weight of a filler; 10-20 parts by weight of a flame retardant; 44-56 parts by weight of magnetic powder; and 1-4 parts by weight of a softening agent. Compared with the prior art, the magnetic hot-melt flame-retardant damping material provided by the invention adopts specific components with specific contents to realize relatively good overall interaction, and the obtained magnetic hot-melt flame-retardant damping material has excellent flame retardance, good vibration absorption and noise reduction effects, good flexibility, high-temperature baking resistance, high-temperature adhesion and washing resistance; and the product has the advantages of good storage stability, long shelf life and light weight, and is suitable for sound insulation, noise reduction and flame retardance near an automobile body and a battery pack.

The invention discloses a plant oil-based self-healing asphalt modifier based on dynamic crosslinking and a preparation method and application thereof, and belongs to the technical field of plant oil-based modifiers. The preparation method of the plant oil-based self-healing asphalt modifier based on dynamic crosslinking comprises the following steps: fully swelling a styrene thermoplastic elastomer in plant oil; swelling gel is obtained; a cross-linking agent and a vulcanization accelerator are added into the swelling gel, and the plant oil-based self-healing asphalt modifier is obtained through a vulcanization reaction; the plant oil-based self-healing asphalt modifier based on dynamic crosslinking provided by the invention is simple in preparation method, and compared with traditional SBS modified asphalt, the plant oil-based self-healing asphalt modifier has more excellent temperature sensitivity, self-healing property and storage stability, the construction process is lower-carbon and more environment-friendly, and the plant oil-based self-healing asphalt modifier has excellent environmental benefits.

The invention discloses a high-strength and high-resilience TPE (thermoplastic elastomer) and a preparation method thereof in the technical field of high polymer materials, and the elastomer is prepared by taking a hydrogenated styrene block copolymer as a matrix and matching with a polyolefin rigid phase, plasticizing oil and a specific additive. The method is characterized in that two self-made reaction type modifiers are introduced, wherein one self-made reaction type modifier is a core-shell nano reinforcing agent containing an epoxy functional group and polyhedral oligomeric siloxane, and the other self-made reaction type modifier is a furan maleimide bifunctional dynamic cross-linking agent. The nano reinforcing agent is prepared through silane hydrolysis and amination reaction, and can react with a matrix for grafting, so that the strength and creep resistance of the material are remarkably improved; the dynamic cross-linking agent is synthesized through step-by-step isocyanate addition reaction, a cross-linked network can be reversibly formed in the processing process, and the material is endowed with extremely high rebound resilience and low permanent deformation. The obtained product has high strength, high resilience and excellent processability, and is especially suitable for high-end fitness equipment.

The invention discloses a temperature-resistant flame-retardant antibacterial composite polypropylene pipe for water supply, and belongs to the technical field of polypropylene pipes. The pipe is prepared by blending and extruding the following components in parts by weight: 70-80 parts of polypropylene random copolymer, 3-8 parts of modified organosilicon copolymer, 5-15 parts of maleic anhydride grafted polypropylene, 8-15 parts of polyolefin thermoplastic elastomer, an initiator, talcum powder, aluminum hydroxide, nano silicon dioxide, a lubricant, an antioxidant and the like. The modified organic silicon copolymer is prepared through specific steps, and the structure of the modified organic silicon copolymer contains a rigid oxa-phospho-spiro ring, a flexible organic silicon chain segment and a terminal guanidyl group. The rigid structure of the modified organic silicon copolymer is combined with the flexible chain segment, the temperature resistance and low-temperature toughness are improved, the flame retardant effect is achieved through cooperation of the oxa-phospho-spiro ring, the aluminum hydroxide and the organic silicon chain segment, and the molten drop tendency is reduced; guanidyl at the tail end endows long-acting antibacterial performance; vinyl double bonds of the organosilicone chain segment react with polypropylene to form a cross-linked network, so that the high-temperature stability and the creep resistance are improved.

Bladders for footwear uppers, footwear components and articles of footwear including the bladders, and / or methods of making and using such bladders are described. The bladders may include first and second thermoplastic elastomer sheets joined together by an outer perimeter bond. An interior chamber is defined between the thermoplastic elastomer sheets and inside the outer perimeter bond. The outer perimeter bond may be shaped such that the interior chamber forms: (i) a foot support chamber portion for supporting at least a portion of a plantar surface of a wearer's foot, and at least one of items (ii) and (iii) below, in which: item (ii) comprises a first side chamber portion (e.g., forming at least part of a first securing strap or a first footwear upper component), and item (iii) comprises a second side chamber portion (e.g., forming at least part of a first strap-engaging member or a second footwear upper component).

The application belongs to the technical field of intelligent electronic devices, and particularly relates to a high-color-purity multi-color electroluminescent fiber and a preparation method and application thereof. The fiber is prepared by the following steps: preparing lead halide perovskite type nano quantum dots as light conversion particles by a hot injection method, a room temperature supersaturation recrystallization method and the like; grafting and modifying the lead halide perovskite type nano quantum dots on the surface of metal sulfide type electroluminescent particles through a surface ligand to obtain high-color-purity multi-color electroluminescent active material; compounding the light conversion particle modified electroluminescent active material and a transparent thermoplastic elastomer polymer to obtain active slurry, and coating the active slurry on the surface of a conductive fiber through a continuous limited coating process; loading an external electrode on the conductive fiber to obtain the high-color-purity multi-color electroluminescent fiber. The multi-color electroluminescent fiber prepared by the application has various colors and high color purity, and meets the color gamut range required by the luminescent fiber and display fabric.