434 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 provides a coating spraying process for an aluminum alloy wheel. The coating spraying process comprises the following steps: S1, surface treatment; s2, spraying a bottom coating; s3, spraying a surface coating; s4, spraying a nano-particle reinforcing layer; s5, thermal plasma spraying post-treatment is carried out; according to the process method, the adhesive force can be improved, the cold plasma treatment technology can efficiently activate the surface of the aluminum alloy, the adhesive force between the coating and the base material is enhanced, and the risk that the coating is peeled off is reduced. And by adding the nano-particle reinforcing layer, the surface hardness of the coating is remarkably improved, and the coating has higher scratch resistance. And the corrosion resistance is enhanced, specifically, the corrosion resistance and the ultraviolet resistance of the aluminum alloy wheel are greatly improved through the optimized formula of the bottom coating and the surface coating, especially the application of a nano reinforcing material and a photocureable coating. The ultraviolet curing technology of the photocureable coating greatly shortens the curing time, the high-frequency production requirement is met, and the production efficiency is improved.

The invention relates to the technical field of power cables, in particular to a heat-aging-resistant crosslinked polyethylene insulated power cable and a preparation method thereof. The cable comprises conductor wire cores, an insulating layer, a filling layer, a composite function layer, a steel tape armoring layer and a sheath layer from inside to outside. The insulating layer is composed of semi-conductive crosslinked polyethylene, silicone resin, nano montmorillonite and an HALS light stabilizer; the filling layer is composed of plasticized glass fabric, polyphenylene sulfide and rare earth oxide; the composite functional layer sequentially comprises a heat-conducting inner layer, a flame-retardant middle layer and an anti-UV outer layer from inside to outside; the sheath layer is composed of polyolefin, white carbon black, ceramic silicone rubber, a flame retardant, polyethylene wax and an initiator. According to the cable, cross-linked polyethylene and silicone resin are preferably selected as heat-resistant materials, heat conduction / flame retardance / UV resistance / armored multi-layer synergistic protection is achieved, the mechanical barrier performance is improved, meanwhile, damage of thermal stress to internal materials is reduced, comprehensive improvement of thermal aging resistance is achieved, and the cable is suitable for high-temperature, high-humidity and frequent thermal cycle harsh environments.

The invention discloses a special oiling agent for paddle-free DTY (Draw Textured Yarn) as well as a preparation method and application of the special oiling agent. The oiling agent comprises the following components in percentage by mass: 30-50% of a lubricant, 10-20% of an antistatic agent, 15-25% of a bundling agent, 1-5% of an antioxidant, 5-10% of an emulsifier and the balance of deionized water. According to the invention, the traditional sizing process is omitted in fiber processing. The oiling agent can significantly improve the fiber performance and reduce the production cost, has excellent environmental protection property, and is suitable for efficient production of synthetic fibers such as terylene, chinlon and the like. After being treated by the oiling agent, the oiling agent forms a compact protective film on the surface of the fiber, has bundling and lubricating functions, does not need additional sizing, can reduce fiber hairiness, improve breaking strength and remarkably improve the antistatic performance, and the oiling agent containing the metal salt multi-effect antistatic agent can remarkably improve the antistatic performance and also can improve the anti-static performance of the fiber. The anti-ultraviolet performance and the antibacterial performance of the fiber can be improved at the same time.

The invention relates to the technical field of materials adaptive to extreme environments, and discloses cross-scale gradient co-doped multifunctional composite aerogel as well as a preparation method and application of the cross-scale gradient co-doped multifunctional composite aerogel. The multifunctional composite aerogel is co-doped with ultraviolet light-screening agent nano-particles, infrared light-screening agent nano-particles and functional nano-particles in a cross-scale gradient manner, and is used for performing selective filtration and full-spectrum regulation and control on sunlight penetrating through the transparent aerogel; the ultraviolet light-screening agent particles are titanium dioxide nano particles; the infrared opacifying agent particles are indium tin oxide nanoparticles; and the functional nanoparticles are silver nanorods. The composite aerogel provided by the invention improves the anti-ultraviolet performance and high-temperature heat insulation performance of the aerogel and provides a function of enhancing photosynthesis of plants, and meanwhile, the transmittance of the transparent aerogel in the visible light band of sunlight is not obviously reduced.

The invention relates to the technical field of architectural glass coatings, and discloses a functional coating for architectural glass and a preparation method of the functional coating. Comprising the following raw materials in parts by weight: 40-60 parts of water-based acrylic resin emulsion, 0.4-0.6 part of a defoaming agent, 5-15 parts of modified nano zinc oxide, 0.3-0.5 part of a flatting agent, 1.5-2.5 parts of a coalescing agent, 3-5 parts of a curing agent, 2-4 parts of a dispersing agent, 30-45 parts of deionized water and 3-5 parts of a thickening agent. An alternating structure formed by copolymerization of alkenyl ether (ester) and fluorine-containing ethylene is grafted on the surface of nano-zinc oxide, so that the surface of the nano-zinc oxide has fluorine-containing chain segments, and the excellent hydrophobic property of the chain segments and the antistatic capacity of the nano-zinc oxide cooperate with each other, so that the coating has super-hydrophobic property and self-cleaning capacity; the compatibility of the modified nano-zinc oxide and the coating is remarkably improved, and meanwhile, the nano-zinc oxide has a shielding effect on ultraviolet rays in long and medium wave bands, so that a coating film formed by curing the coating has excellent anti-ultraviolet performance.

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.

The utility model discloses a highly uvioresistant heat-shielding cool weft knitting fabric with a single-layer effect, which is formed by interweaving 50D / 34F fine-denier light-mesh dyed yarn polyamide DTY (draw textured yarn) filaments, 30D / 36F fine-denier light-mesh cation modified polyester DTY filaments and 20D polyurethane filaments, the highly uvioresistant heat-shielding cool weft knitting fabric with the single-layer effect comprises a front side and a back side, and the front side and the back side have the same pattern; the fabric body is provided with transverse white stripes, a dark grey plain weave and a dark grey grid-shaped front and back coil fabric layer; the front and back coil fabric layers with the transverse white stripes are formed by weaving 30D / 36F fine-denier light-mesh cation modified polyester DTY filaments and 20D polyurethane filaments, and the front and back coil fabric layers with the dark grey plain and dark grey latticed shapes are formed by weaving 50D / 34F fine-denier light-mesh dyed yarn polyamide DTY filaments and 20D polyurethane filaments; the fabric provided by the utility model not only has a special single-sided and single-layer appearance pattern effect and a high ultraviolet-resistant and heat-shielding function, but also has an ice skin cooling function.

The invention discloses UV-resistant perfluoropolyether siloxane as well as a preparation method and application thereof, the chemical structural formula of the perfluoropolyether siloxane is as shown in formula I, and in the formula I, m and n are independently integers greater than or equal to 1. According to the invention, two functional groups with different functions, such as the micromolecular UV absorbent and the amino siloxane, are respectively introduced into the dihydroxyl perfluoropolyether, so that the UV resistance, the wear resistance and the like of the coating are remarkably improved, and excellent hydrophobic and antifouling effects are achieved. In addition, due to the existence of multiple silicon-oxygen bonds, the adhesive force of the coating can be effectively enhanced, and the durability is improved. And the formula I of the # imgabs0 # is shown in the specification.

The invention relates to the technical field of packaging paper, and discloses environment-friendly decorative paper and a preparation method and application thereof.The environment-friendly decorative paper comprises a base material, and an EB functional layer is formed on the base material; the EB functional layer is a coating layer formed by curing a functional coating through EB radiation curing; the functional coating is prepared from polyurethane and acrylic resin in a weight ratio of (1: 1)-(1: 4). According to the preparation method, the EB functional layer is prepared on the base material through the EB curing technology to replace a traditional high-temperature curing technology, the energy consumption problem of high-temperature curing can be avoided, and the preparation process of the EB functional layer is efficient. Besides, a formaldehyde-free environment-friendly process is realized, and an EB curing technology is combined, so that good bonding force can be formed between the EB functional layer and a base material, the EB functional layer has excellent wear resistance, scratch resistance and ultraviolet resistance, the service life of the decorative paper can be effectively prolonged, and the decorative paper is particularly remarkable in outdoor or high-use-frequency application.

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 high-barrier polycrystalline silicon packaging film and a preparation method thereof, and relates to the technical field of packaging materials. The invention discloses a high-barrier polycrystalline silicon packaging film. The composite material 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 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 provided by the invention has remarkable advantages and scientific raw material ratio, is prepared by a special process, 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 double-core water-blocking weather-proof photovoltaic direct-current cable and a preparation method thereof, and the cable comprises two cable bodies, and is characterized in that each cable body is provided with a tinned conductor, water-blocking glue, an insulating layer, a water-blocking tape and a sheath layer from inside to outside in sequence; a connecting rib is fixedly arranged between the two sheath layers; the water-blocking tape is arranged outside the insulating layer in a double-layer wrapping mode, and the double-layer water-blocking tape is composed of a PET base material and acrylic acid glue. The insulating layer is arranged in a double-layer mode, the inner layer is XLPE added with 3% of nanometer aluminum hydroxide, the outer layer is XLPE added with 5% of nanometer carbon black, the space between the tinned conductor and the insulating layer is coated with hot-melt water-blocking glue for longitudinal water blocking, the space between the tinned conductor and the insulating layer is provided with a double-layer water-blocking tape for radial water blocking, the water-blocking performance of the cable is effectively improved, the inner layer of the insulating layer is XLPE added with 3% of nanometer aluminum hydroxide, and therefore the water-blocking performance of the cable is effectively improved. And the outer layer is made of anti-ultraviolet and water-resistance XLPE added with 5% of nano carbon black, so that the water resistance and the anti-ultraviolet performance of the cable are improved.

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.

The invention provides a single-component silane modified polyether adhesive with excellent heat resistance and a preparation method of the single-component silane modified polyether adhesive, and belongs to the technical field of adhesives. The adhesive comprises the following components in parts by mass: 30-50 parts of a silane modified polyether polymer, 10-20 parts of epoxy resin, 10-20 parts of a plasticizer, 0.5-1 part of an ultraviolet light absorber, 0.5-1 part of a light stabilizer, 0.5-1 part of an antioxidant, 40-60 parts of filler, 1-2 parts of a water removal agent, 3-6 parts of a silane coupling agent and 0.3-1 part of a catalyst. The adhesive has the characteristics of good heat resistance, good mechanical properties, high bonding strength, good ultraviolet resistance and good aging resistance, and can be used for heat-resistant electrophoresis requirements in the automobile manufacturing process and high-strength elastic bonding in equipment manufacturing.

The invention discloses an anti-aging rubber runway and a production process thereof, and relates to the technical field of rubber runways. The anti-aging rubber runway is prepared from the following raw materials in parts by weight: 400 to 600 parts of modified rubber, 200 to 300 parts of modified polyurethane elastomer, 100 to 200 parts of environment-friendly hydrophobic filler, 30 to 50 parts of antioxidant, 20 to 40 parts of plasticizer, 10 to 20 parts of cross-linking agent, 10 to 20 parts of activated zinc oxide, 5 to 15 parts of nano titanium dioxide, 2 to 8 parts of graphene, 1 to 5 parts of antibacterial agent and 10 to 30 parts of hollow glass beads. The anti-aging rubber runway disclosed by the invention shows excellent performance through a unique raw material formula and process. The modified rubber and the polyurethane elastomer synergistically improve aging resistance and wear resistance; the environment-friendly hydrophobic filler enhances hydrophobic and environment-friendly characteristics; the ultraviolet resistance is enhanced by nano titanium dioxide and graphene; the antibacterial agent inhibits the growth of bacteria; the hollow glass beads reduce the density and improve the elasticity and impact resistance. The whole fabric has excellent weather resistance, wear resistance, antibacterial performance and environmental protection performance, and is suitable for various outdoor sports fields.

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 a synthetic polymer waterproof coiled material and a preparation method thereof, and relates to the technical field of waterproof coiled materials, the synthetic polymer waterproof coiled material comprises a synthetic polymer layer, polyester layers are arranged on the upper and lower sides of the synthetic polymer layer, the top of the upper polyester layer is fixedly coated with a waterproof coating, and the bottom of the lower polyester layer is fixedly coated with a primer. Oil film protection paper is fixedly adhered to the bottom of the primer, and the preparation method of the synthetic polymer waterproof roll comprises the following steps: step 1, preparing raw materials; 2, preparing a sizing material; the polyester layers are compounded on the upper side and the lower side of the synthetic polymer layer, so that the tensile property and the stability of the whole coiled material are improved by utilizing the characteristics of the polyester layers, meanwhile, the waterproof coiled material has excellent properties such as moisture resistance, UV resistance and chemical substance resistance, and meanwhile, the waterproof coating is coated on the top of the uppermost polyester layer, so that the waterproof performance of the coiled material is improved. Therefore, the waterproof effect of the coiled material is further optimized, and the waterproof comprehensiveness is improved.

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.