330 results about "UV resistance" patented technology

The invention discloses a high-barrier polycrystalline silicon packaging film and a preparation method thereof, and relates to the technical field of packaging materials. The high-barrier polycrystalline silicon packaging film consists of a polyester film carrier and functional slurry, the functional slurry is prepared from the following raw materials in parts by weight: 15 to 25 parts of ethylene-vinyl alcohol copolymer, 10 to 18 parts of polyvinylidene chloride, 5 to 10 parts of modified nano montmorillonite, 8 to 15 parts of modified polylactic acid, 3 to 6 parts of tributyl citrate, 1 to 3 parts of antioxidant 1010, 1 to 3 parts of ultraviolet light absorber UV-531, 0.5 to 1.5 parts of nucleating agent NA-11, 1 to 2 parts of silane coupling agent KH-550 and 3 to 7 parts of modified silicon dioxide aerogel; 2 to 5 parts of vinyl trimethoxy silane, 1 to 3 parts of nano silver and 20 to 30 parts of deionized water. The high-barrier polycrystalline silicon packaging film has excellent barrier performance, and can effectively block oxygen, water vapor and the like. The polycrystalline silicon packaging film is good in mechanical performance, not prone to damage, antibacterial, antioxidant and anti-ultraviolet, the quality guarantee period of polycrystalline silicon can be prolonged, the product quality can be guaranteed, and the polycrystalline silicon packaging film has great application value in the field of polycrystalline silicon packaging.

The invention discloses a novel long-acting bird repellent and a preparation method thereof, and belongs to the technical field of chemical bird repelling. The bird repellent is composed of a core material and a wall material, the core material is a mixture of geraniol, cinnamyl aldehyde and allicin according to the mass ratio of 1: (1.2-1.5): (0.5-0.8), the wall material is modified beta-cyclodextrin and pumpkin seed protein nanoparticles, and the mass ratio of the geraniol, the cinnamyl aldehyde and the allicin is (5-7): (3-5): (1-3). The preparation method comprises the following steps: preparing the quaternary ammonium salt modified beta-cyclodextrin, including the core material, performing high-speed shearing emulsification on the quaternary ammonium salt modified beta-cyclodextrin and the pumpkin seed protein nano dispersion liquid, and performing freeze drying to obtain a final product. According to the invention, a stable and compact'molecular inclusion + physical barrier 'dual slow-release structure is constructed by utilizing the electrostatic interaction between the positively charged modified beta-cyclodextrin and the negatively charged protein nanoparticles, the release time of effective components is remarkably prolonged to 9 months or more, and the composite material has excellent rain wash resistance and ultraviolet resistance, and can be used for preparing a composite material with a good application prospect. And efficient, environment-friendly and long-acting bird repelling is realized.

The invention discloses a preparation method of a multifunctional cellulose-based fiber, and belongs to the technical field of multifunctional fibers.The preparation method comprises the steps that firstly, a phosphoric acid compound and a polyphenol compound are placed in a reactor to be evenly mixed and react to obtain phosphoric acid modified polyphenol, and then the phosphoric acid modified polyphenol is subjected to wet grinding to obtain the multifunctional cellulose-based fiber; then adding the phosphoric acid modified polyphenol dispersion liquid subjected to ball milling into the cellulose-based spinning solution, finally stirring, mixing and defoaming to obtain a spinning solution containing phosphoric acid modified polyphenol, and spinning and forming to obtain the multifunctional cellulose-based fiber. The phosphoric acid modified polyphenol enables the fibers to have better flame retardance, antibacterial property, ultraviolet resistance and oxidation resistance, does not influence the softness and comfort of the fibers, has better binding force with the fibers, and ensures that the finishing effect is lasting and stable. The technology has high environmental protection property and sustainability, and is suitable for production of functional textiles, sportswear and high-performance fibers.

The utility model discloses a breathable cool anti-UV fabric, which is formed by weaving warp yarns and weft yarns according to a one-up one-down plain weave, each cycle of the warp yarns contains 2-3 hollow reeds, the warp yarns comprise inner-layer yarns and outer-layer yarns, the outer-layer yarns are chinlon delustering yarns, the inner-layer yarns are spandex yarns, the weft yarns comprise first weft yarns and second weft yarns, and the first weft yarns and the second weft yarns are interwoven. The first weft yarn is the same as the warp yarn, the second weft yarn is alkali-soluble yarn, and in each cycle of the weft yarn, the yarn ratio of the first weft yarn to the second weft yarn is (15-18): (1-2). When the fabric passes through alkali liquor, the alkali-soluble yarns in the weft yarns are dissolved, so that the alkali-soluble yarns and vertical blanks formed by the hollow reeds in the warp direction form holes at nodes, the proportion of the alkali-soluble yarns is not more than 10%, and the use amount of the alkali-soluble yarns is small, so that the use amount of strong alkali is correspondingly reduced, environmental pollution caused by excessive use of the strong alkali is avoided, and meanwhile, serious beard edges and fuzzing balls at the holes are avoided. The fabric disclosed by the utility model can integrate the effects of ventilation, cool feeling, elasticity and UV resistance into a whole.

The invention relates to the technical field of high polymer materials, in particular to an EVA / nano-zinc oxide anti-ultraviolet car cover and a preparation method thereof. The invention aims to solve the problem that the mechanical strength and the ultraviolet resistance of the existing car cover are difficult to consider at the same time. Ethylene-vinyl acetate resin is used as a matrix, a silane coupling agent and hydroxyethyl methylacrylate surface modified and grafted composite nano-zinc oxide, maleic anhydride grafted EVA and a polyurethane modifier are subjected to melt blending, a TMPTA cross-linking agent is added, and the vehicle cover film is prepared through extrusion casting and ultraviolet curing. Wherein the polyurethane modifier is obtained by reacting polycaprolactone polyol with isophorone diisocyanate and adopting hydroxyethyl methylacrylate and 2, 2 '-methylenebis (6-tert-butyl-4-methylphenol) for end capping. The uvioresistant car cover prepared by the invention has excellent tensile strength, elongation at break, uvioresistant performance and adhesive force at the same time.

To provide an article that may be provided with a surface-treated layer with superior liquid repellency and UV resistance.SOLUTION: An article is provided, comprising a base material and a layer formed on the base material, the layer having a diffraction peak near 2θ=21.0° as observed in GIXD measurement.SELECTED DRAWING: None

The invention discloses a high-toughness anti-ultraviolet PET (Polyethylene Terephthalate) fiber and a preparation method thereof, belongs to the technical field of polyester fibers, and is used for solving the technical problem that the mechanical strength, the ultraviolet resistance and the moisture absorption and quick drying performance of the PET fiber in the prior art need to be further improved. The invention relates to a high-toughness anti-ultraviolet PET (Polyethylene Terephthalate) fiber which is prepared from modified PET, modified polyester, modified montmorillonite, epoxy modified polysiloxane and an additive in a weight ratio of (55-60): (30-35): (10-16): (20-30): (3-5), according to the invention, the modified montmorillonite is used as a heterogeneous nucleation point, and a PET molecular chain composed of the modified PET, the modified polyester and the epoxy modified polysiloxane is induced to be arranged in a height orientation manner along the drafting direction, so that the breaking strength of the PET fiber is improved, a relatively high elongation at break is maintained, and the anti-ultraviolet effect and the moisture-absorbing and quick-drying performance of the PET fiber are improved.

The invention provides a high-reliability dye PDLC composition, a PDLC dimming film and a preparation method of the PDLC dimming film. The dye PDLC composition comprises the following components in percentage by weight: 35 to 67 percent of liquid crystal composition, 1 to 8 percent of dichroic dye, 30 to 60 percent of polymer precursor, 0.05 to 3 percent of photoinitiator and 0.2 to 1 percent of spacer particles. The dichroic dye comprises at least one kind of dichroic yellow dye, at least one kind of dichroic red dye, at least one kind of dichroic purple dye and at least one kind of dichroic blue dye. By selecting the specific dichroic dye, the PDLC dimming film is rich and changeable in color and particularly good in black display effect, has the high optical performance that the on-state haze is smaller than 4%, the off-state haze is larger than 95% and the contrast ratio is larger than 5, has excellent UV resistance and heat-resistant stability and is not prone to fading, and therefore the actual requirement for long-term use in various application scenes can be met.

The invention provides a PBAT (poly (butylene adipate-co-terephthalate)) resin modifier, a preparation method of the PBAT resin modifier and application of the PBAT resin modifier in a biodegradable film material, and the PBAT resin modifier comprises the following raw materials: 100 parts of PBAT resin; 1-10 parts of a guanidine compound, 1-10 parts of an ultraviolet absorbent and 0.1-1 part of a cross-linking agent. According to the PBAT resin modifier, the PBAT resin is terminated through the guanidine compound, the ultraviolet absorbent is bridged, the PBAT resin modifier has the antibacterial, anti-ultraviolet and anti-tear effects, the compatibility of the PBAT modifier and the PBAT resin is good, the compatibility of a system is improved, degradation of microorganisms in soil on the degradable mulching film can be effectively inhibited, the anti-ultraviolet performance of the film is improved, and the service life of the film is prolonged. The aging performance of the degradable mulching film is prolonged.

The invention relates to the technical field of high polymer materials and protective coatings, and discloses a single-layer anti-ultraviolet heavy-duty powder coating as well as a preparation method and application thereof. The preparation method of the single-layer anti-ultraviolet heavy anti-corrosion powder coating comprises the following steps: adding carboxyl polyester resin, triglycidyl isocyanurate, modified nano silicon dioxide, modified chitosan, 2-(2H-benzotriazole-2-yl)-4, 6-di-tert-pentylphenol, bis (2, 2, 6, 6-tetramethyl-4-piperidinyl) sebacate, flaky aluminum powder, zinc phosphate, BYK-3920, 2-hydroxy-1, 2, 4-triazole-2-yl)-1, 3, 4-triazole-2-yl)-1, 3, 5-triazole-2-yl)-1, 3, 5-triazole-2-yl)-1, 3, 5-triazole-2-yl)-1, 3, 5-triazole-2-yl)-1, 3, 5- The preparation method comprises the following steps: stirring and mixing 2, 2-diphenylethanone and gamma-aminopropyltriethoxysilane at room temperature at 300-350rpm for 10-15min to obtain a mixture, extruding the mixture through a double-screw extruder at the extrusion temperature of 110-120 DEG C and the screw rotation speed of 450-500rpm, and grinding to obtain the single-layer anti-ultraviolet heavy-duty anticorrosive powder coating. The single-layer anti-ultraviolet heavy anti-corrosion powder coating can be applied to metal base material protection. The coating prepared by the invention has good ultraviolet resistance and corrosion resistance.

The invention belongs to the technical field of coating materials, and particularly relates to an ablation-resistant anti-aging coating on the surface of an aircraft and a preparation method of the ablation-resistant anti-aging coating. A silane coupling agent containing an epoxy group and vinyl and boric acid are used as raw materials, an organic silicon-boron hybrid oligomer with a Si-O-Si and Si-O-B bond stereo structure is obtained by adjusting the ratio of the silane coupling agent to the boric acid and serves as a bridge, and phenolic resin, hydrogen-containing silane and vinyl silicone rubber are combined together to form the ablation-resistant anti-aging coating. Wherein an epoxy group and a phenolic hydroxyl group are subjected to a condensation reaction, vinyl and a platinum catalyst form a compact cross-linked structure through hydrogen-containing silane, and the obtained coating has a lower ablation rate, better anti-UV weather resistance and higher flexibility, is suitable for long-time protection of the surface of an aircraft, and has a better ablation protection effect under shear airflow impact.

The invention discloses a light soft polyurethane material for a soft volleyball and a preparation method of the light soft polyurethane material, and relates to the technical field of polyurethane materials. The preparation method comprises the following steps: S1, adding polyether glycol, polyester glycol and isophorone diisocyanate into acetone under the protection of nitrogen, uniformly stirring and mixing, then adding dibutyltin dilaurate, and stirring and reacting at 75-85 DEG C for 1-3 hours; s2, adding a lignin-based chain extender into the reaction system, stirring and heating to 80-90 DEG C, stirring and reacting for 1-3 hours, then adding a diamine chain extender, and keeping the temperature and stirring and reacting for 30-60 minutes; s3, finally, activated calcium carbonate is added into a reaction system, stirring and mixing are conducted for 1-2 h, acetone is removed through rotary evaporation, and the light soft polyurethane material is obtained. The light soft polyurethane material has excellent mechanical properties, ultraviolet resistance and aging resistance, and light volleyballs obtained through processing are excellent in performance and better in applicability.

This invention relates to a pavement structure and its installation method. The pavement structure includes a main body, which comprises a base layer, a concrete layer, and a first bonding layer. The first bonding layer is disposed between the base layer and the concrete layer to bond the base layer and the concrete layer. A storage tank is fixedly disposed on the side of the main body. The storage tank is used to store an aqueous solution of light stabilizer, and the top of the storage tank is provided with a feeding port, in which a plug is detachably installed. The main body also includes a hydrophilic polymer fiber mesh, which is laid on the concrete layer and extends into the storage tank from the side. The polymer fiber mesh can adsorb and disperse the aqueous solution of light stabilizer on it. The surface tension of the fibers promotes the flow of liquid, and the aqueous solution of light stabilizer in the storage tank is uniformly absorbed and dispersed throughout the pavement structure, extending the UV resistance of the pavement structure and ensuring the full service life performance of the concrete.

The invention discloses an anti-UV hydrolysis-resistant PET functional master batch and a preparation method thereof, UV absorbing groups such as isophorone diester and 2, 4-dihydroxybenzoic acid are introduced to enhance the UV resistance, and neopentyl glycol and trimethylolpropane are introduced to enhance the hydrolysis resistance of a molecular chain. Besides, the Beta molecular sieve, the zinc metaborate and other auxiliaries are utilized, so that the uniform distribution of the light stabilizer and the ultraviolet light absorber in the molecular structure is improved, and the problem that the UV absorption performance and the hydrolysis resistance of the film are not uniform due to molecular arrangement change in the stretching process is effectively avoided. The ultraviolet resistance, the strength and the hydrolysis resistance of the film are improved through the synergistic effect of all the components in the formula, so that the application requirements of PET products in the fields of packaging, electronics, photovoltaics, automobiles, medical instruments and the like are met.

The application discloses waterproof ultraviolet-resistant nylon fabric and a processing technology thereof and relates to the technical field of nylon fabric. The application comprises a nylon inner core formed by nylon fiber weaving; a waterproof layer sewn on both sides of the nylon inner core, wherein the waterproof layer is composed of PVC coated fabric; and an ultraviolet-resistant layer coated on the surface of the waterproof layer, wherein the ultraviolet-resistant layer is dark paint. The waterproof layer made of PVC coated fabric is sewn on the outer side of the nylon inner core. In use, the waterproof effect of the nylon inner core itself is improved, and the outer side of the waterproof layer is coated with dark paint. When the fabric is the same, the deeper the color, the better the protection effect against ultraviolet rays. Without additional increase in the weight of the fabric, the ultraviolet-resistant performance of the nylon fabric after forming is improved, the practicality of the fabric after being made into a coat is improved, the nylon fabric has the properties of waterproofness and ultraviolet resistance under the action of the paint, the quality of the nylon fabric is improved, and the service life is prolonged.

This invention relates to a polyurethane-modified silicone protective material for the outer wall of wind turbine towers, and discloses a method for preparing the same material. The material is prepared by mixing acrylate-hedged phenol-modified trimethyl silicone oil, isocyanate-modified polyether polyol polyurethane, ultrafine silica, nano-alumina, short-fiber glass, triethylamine, benzoyl peroxide, dioctyl phthalate (DOP), phthalocyanine UV absorbers, dibutyltin diethylene (DDBT), and imidazole antifungal agents in a specific weight ratio. This material exhibits excellent weather resistance, mechanical strength, heat resistance, UV resistance, and antifungal properties, making it particularly suitable for the protection of wind turbine towers. The preparation method ensures the stability and consistency of the material's performance by precisely controlling the proportions of each component and the curing conditions. This material effectively improves the UV resistance, corrosion resistance, weather resistance, and overall durability of wind turbine towers, extending their service life and reducing maintenance costs. This invention provides a high-performance protective material for the outer wall of wind turbine towers, which has significant engineering application value. Especially in environments with long-term high humidity, low temperature, and strong ultraviolet radiation, it can significantly improve the stability and service life of the tower. This polyurethane-modified silicone protective material exhibits excellent protective performance in demanding application environments such as wind turbine towers, and has broad market application prospects.

The utility model discloses a copper-clad aluminum conductor photovoltaic wire, which relates to the field of photovoltaic technology and comprises an aluminum conductor, a copper conductor is fixedly sleeved on the outer cylindrical surface of the aluminum conductor, a tin shell is fixedly sleeved on the outer cylindrical surface of the copper conductor, and a waterproof layer is arranged on the outer surface of the tin shell. The waterproof layer is used for improving the waterproof performance of the photovoltaic wire, the outer surface of the waterproof layer is provided with the anti-impact layer, the anti-impact layer is used for improving the strength of the photovoltaic wire, the outer surface of the anti-impact layer is provided with the protective layer, and the protective layer is used for improving the corrosion resistance and ultraviolet resistance of the photovoltaic wire. According to the utility model, the surface of the wire can be effectively protected from being damaged by external environments such as chemical corrosion and mechanical damage through the protection layer, the service life of the wire is prolonged, and the damage of the wire caused by mechanical stress in the transportation, installation and use processes can be reduced through the impact-resistant layer.

The invention discloses a durable ultraviolet-proof polyamide fiber fabric and a production method thereof. The durable ultraviolet-proof polyamide fiber fabric is prepared from the following raw materials in parts by mass: 75-90 parts of polyamide chips, 3-8 parts of an ultraviolet light absorber, 2-7 parts of an ultraviolet reflecting agent, 1-5 parts of an ultraviolet quenching agent, 2-6 parts of an antibacterial agent, 2-6 parts of an antistatic agent, 1-4 parts of a softening agent and 172-186 parts of carrier resin. The ultraviolet light absorber, the ultraviolet reflecting agent, the ultraviolet quencher, the antibacterial agent, the antistatic agent, the softening agent and the like are fused into the polyamide fiber by adopting a blending spinning method, so that the polyamide fiber is stably combined with the polyamide fiber, and the polyamide fiber fabric is enabled to be uniform in color and luster in the repeated wearing and washing process; the polyamide fiber fabric can still keep good anti-ultraviolet performance, meanwhile, multiple characteristics such as antibacterial performance, antistatic performance, softness and comfort can be effectively kept, the anti-ultraviolet performance of the polyamide fiber fabric and durability of other functions are remarkably improved, and the multifunctional requirements of consumers for textile fabric are greatly met.

This invention provides a modified lignin and its preparation method, a rubber composite material and its preparation method, and its applications, relating to the field of rubber materials technology. This invention employs sulfur and oil to synergistically surface-functionalize lignin, significantly enhancing its interfacial compatibility with the rubber matrix. Furthermore, the modified lignin, rich in long carbon chains, can form physical entanglements with rubber, and is also rich in polysulfide bonds, enabling chemical cross-linking with rubber at high temperatures to form a stable three-dimensional network structure, effectively improving the mechanical properties of the rubber material. The modified lignin prepared by this invention can replace 10-50% of carbon black and 10-50% of rubber without reducing rubber performance; it also imparts additional functions such as UV resistance and anti-aging properties to rubber materials. The multi-purpose nature of this modified lignin makes it widely applicable in the field of rubber material preparation.

The application discloses a liquid crystal composition with anti-UV performance for VA-LCD, which comprises 3-90% of at least one first component with the structure shown in formula I, 0-60% of at least one second component with the structure shown in formula II, 3-55% of at least one third component with the structure shown in formula III, 2-45% of at least one fourth component with the structure shown in formula IV, 5-60% of at least one fifth component with the structure shown in formula V, 2-35% of at least one sixth component with the structure shown in formula VI and 2-45% of at least one seventh component with the structure shown in formula VII. The liquid crystal composition formed by the components has high refractive index and high anti-UV performance without introducing a large amount of acetylene substances.

This invention discloses an impact-resistant photovoltaic encapsulating film, its preparation method, and a photovoltaic module. The photovoltaic encapsulating film comprises multiple layers of unidirectional prepreg tape laminated together. The unidirectional prepreg tape is obtained by melt impregnation of thermoplastic resin and continuous fibers surface-treated with a coupling agent. The thermoplastic resin includes polyolefin elastomer (POE) and POE grafts. During the melt impregnation process, the continuous fibers surface-treated with the coupling agent and the POE grafts undergo a chemical reaction to achieve compatibility. This invention employs a pre-melt impregnation followed by crosslinking technique. The uncrosslinked POE resin has good fluidity and can be fully melt-impregnated with the continuous fibers. Electron beam irradiation post-treatment technology allows the impregnated base film to undergo a crosslinking reaction, resulting in a fiber-reinforced impact-resistant photovoltaic encapsulating film. The film prepared by this invention meets industry technical standards for UV resistance, aging resistance, and impact resistance, while also being low-cost and simple to manufacture, making it widely applicable in the field of lightweight flexible photovoltaic modules.

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

The utility model provides a kind of portable circular garage lamp external emergency power supply box, belong to lighting industry field, including mounting plate and lamp body, the lamp body is fixedly installed at the bottom of mounting plate, the outside of lamp body is equipped with emergency assembly.The utility model can be used as the external emergency power supply device of various lamps and lanterns separately, also realizes flexible assembly and convenient application by unique interface connection design.Emergency power supply box and lamp body are completely separated design, effectively avoid the adverse effect caused by the heat generated by lamp body to power supply box, to significantly improve the life and working reliability of emergency power supply, provide strong guarantee for the continuous lighting of lamps and lanterns in power failure, meet the demand of complex and changeable use environment.At the same time, its anticorrosion and UV resistance characteristics and reach IP65 protection level, effectively resist corrosion and ultraviolet invasion, further prolong the service life, reduce maintenance cost.

The application discloses a dyeing boosting agent and a low-temperature salt-free dyeing method for bio-based PLA / regenerated cellulose fiber blended fabric, and relates to the technical field of textile dyeing. A synergistic cross-linking modification system is constructed by using a bio-based small-molecule phenol with double functional groups and a high-density amino polymer. The fabric is pretreated and immersed for modification, a stable ion cross-linking adhesion layer is formed on the surface of the fiber, and then low-temperature dyeing of the electrolyte-free reactive dye is carried out. The process adopts a one-bath one-step method, does not need high temperature, high salt and reduction cleaning procedures, is simple in process, low in carbon and environmentally friendly, can realize synchronous dyeing and uniform color of PLA and regenerated cellulose fiber, effectively improves the fabric dyeing rate and color fastness, and significantly improves the ultraviolet resistance of the product. The application solves the problems of poor uniformity, low color fastness and large pollution existing in the traditional dyeing process, and is suitable for green and efficient production of bio-based blended fabric.

The application discloses a preparation method of a super-wear-resistant anti-fingerprint and UV-resistant coating and application thereof, and relates to the technical field of glass coating, in particular to the preparation method of the super-wear-resistant anti-fingerprint and UV-resistant coating.The preparation method comprises the following steps: S1, mixing AF coating and fluorine-modified UV-resistant coating to obtain a mixed solution; S2, preheating the cleaned and dried glass, and then performing plasma bombardment to make the water drop contact angle of the glass surface be less than or equal to 10 degrees; spraying the mixed solution onto the glass surface, and baking to obtain the super-wear-resistant anti-fingerprint and UV-resistant coating.In the technical scheme, the fluorine-modified UV-resistant coating and the AF coating are fully miscible, a dense crosslinked network can be formed on the glass after spraying, water and oil can be effectively prevented, the coating has the effects of UV resistance, anti-fingerprint, high wear resistance, and high light transmittance, the super-wear-resistant anti-fingerprint and UV-resistant coating prepared by the preparation method has more sustainable and excellent performance on the glass surface compared with similar products, the production and use efficiency is improved, and the coating is environment-friendly.

The utility model relates to an all-electric four-layer fresh-keeping bottle blowing machine which comprises a machine frame, blocking doors are arranged on the left side and the right side of the machine frame, a first working table is arranged on the right side of the bottom of the machine frame in a sliding mode through a lifting mechanism, a second working table is arranged on the top of the first working table, and a plurality of sizing material extruders are arranged on the top of the second working table. The top of the second workbench extends leftwards to be provided with a supporting frame, tuyere mechanisms are arranged on the front side and the rear side of the supporting frame, the left side of the supporting frame is connected with a glue pulling double-die head, and die moving swing arm sets are symmetrically arranged on the left side in the rack front and back. The bottle manufactured through blowing is of a four-layer structural design and comprises the bonding layer, the inner layer, the EVOH layer and the main layer, the gas barrier property and the ultraviolet resistance are enhanced, and the storage time of food is effectively prolonged; the lifting structure drives the first workbench and components arranged on the first workbench to move up and down to be adjusted so as to adapt to the melting temperature and fluidity of different plastic materials, the extrusion process is optimized, and then accurate control over compounding of multiple layers of materials is achieved.

This invention belongs to the field of waterborne coatings and discloses a filler-modified organosilicon waterborne polyurethane, its wear-resistant superhydrophobic coating, and its preparation method. The wear-resistant superhydrophobic coating is made by stirring waterborne polyurethane emulsion as the main raw material, adding hydrophobic modified organosilicon, nanofiller modifiers, and additives. This coating not only has excellent adhesion and wear resistance but also superhydrophobic properties. Specifically, the introduction of hydrophobic modified organosilicon improves the coating's adhesion strength to the substrate and its wear resistance; the introduced low surface energy -Si-O-Si segments improve the coating's hydrophobicity, giving it superhydrophobic properties; and different fillers impart good UV resistance and wear resistance to the coating.

The invention relates to the technical field of latex materials, in particular to a latex sponge product and a preparation method thereof.The latex sponge product is prepared from, by weight, 90 parts of synthetic latex; 10 parts of natural latex; 4-8 parts of a vulcanization bag dispersion; 2-5 parts of a foaming agent; 0.5-2 parts of a foam stabilizer; 0.1-5 parts of a latex stabilizer; 0-2 parts of a thickening agent; 5-30 parts of a filler; 1-5 parts of an ultraviolet absorption dispersion; the ultraviolet absorption dispersoid comprises a benzotriazole ultraviolet absorbent, a dispersing agent and water in a mass ratio of (50-55): (1-5): (45-50). The oxidation resistance and ultraviolet resistance of the latex sponge product are improved by introducing the benzotriazole ultraviolet light absorber, so that the service life of the latex sponge product is prolonged.

The invention relates to the technical field of synthetic leather preparation, and discloses waterborne polyurethane synthetic leather and a preparation method thereof.The waterborne polyurethane synthetic leather comprises a base layer and a coating layer, the base layer is polyester non-woven fabric, and the coating layer comprises, by weight, 10-20 parts of aromatic isocyanate; 50 to 70 parts of polyether polyol; 5 to 15 parts of nano silicon dioxide; 0.1 to 0.5 part of a catalyst; 15 to 25 parts of water; 5 to 10 parts of epoxidized soybean oil; 0.1 to 0.3 part of polysorbate-20 (20); the aromatic isocyanate is toluene diisocynate, the nitrogen content of the aromatic isocyanate is 14-16%, the purity of the aromatic isocyanate is higher than 98%, and the volatile content of the aromatic isocyanate is lower than 1%. By introducing the nano silicon dioxide and the epoxidized soybean oil and optimizing the reaction process, the anti-aging, anti-ultraviolet and high-temperature-resistant properties of the polyurethane synthetic leather are improved, the service life is prolonged, and the stability and high performance of the product are ensured.

The invention provides an amino acid eutectic gel, a preparation method thereof and an application of the amino acid eutectic gel in preparation of glass laminated glue, and relates to the technical field of glass, the amino acid eutectic gel is obtained through polymerization of a pre-polymerization solution; wherein the prepolymerization solution comprises the following raw materials: an acrylic monomer, an amino acid eutectic solvent, a photoinitiator and a cross-linking agent. The problems that in the prior art, eutectic gel is poor in adhesion, low in strength, low in transparency, poor in ultraviolet resistance, high in inflammability and complex in process can be solved.