30results about How to "Excellent resistance to UV radiation" patented technology

An ultra violet radiation resistant environmental protection sheathing material is mainly prepared by the following materials according to the parts by weight: 40-50 pars of polyvinyl chloride resin, 6-8 parts of trioctyl trimellitate, 4-6 parts of dioctyl sebacate, 7-9 parts of dioctylphthalate, 4-6 parts of ca-zn composite stabilizer, 1-1.5 parts of epoxidized soybean oil, 1-1.5 parts of diantimony trioxide, 1-1.5 parts of diantimony trioxide, 10-13 parts of magnesium hydrate, 8-10 parts of refined calcium carbonate, 8-10 parts of titanium dioxide, and 0.3-0.5 parts of ultraviolet absorbent. The invention technically solves the difficult point of compound formulation of the ultra violet radiation resistant white sheathing material, greatly increases the resistance to ultra violet radiation performance of the product, has strong practicability and lays the material foundation for the design and development of resistance to ultra violet radiation coaxial-cables. Based on the resistance to ultra violet radiation white polyvinyl chloride sheathing material, the resistance to ultra violet radiation environmental protection sheathing material technically solves the technical difficulties of resistance to ultra violet radiation performance, softness, UL mechanical physical property, ROHS environment requirements and the like which are difficult to be achieved completely, meets the strict requirements of the application of products on tropical and subtropical regions and has remarkable social effect.

The invention discloses a bending resistant sheath material for wires and cables, and a preparation method thereof. The bending resistant sheath material is prepared by using the following raw materials, by weight, 60-80 parts of natural rubber, 20-40 parts of butadiene rubber, 10-20 parts of smoke sheet rubber, 5-15 parts of polybutylene telephthalate, 20-30 parts of carbon black N774, 1-2 parts of stearic acid, 2-3 parts of zinc oxide, 3-4 parts of sulfur, 1-2 parts of an accelerant CZ, 2-3 parts of an accelerant TMTD, 10-15 parts of a t-butyl phenolic resin, 4-7 parts of microcrystalline paraffin, 1-2 parts of an antioxidant 4020, 1-2 parts of an antioxidant RD, 2-3 parts of N-cyclohexylsulfophthalimide, 3-5 parts of aromatic oil, and 1-3 parts of di-n-butyl tin dichloride. The sheath material has the characteristics of high elasticity, high strength and excellent bending strength, prolongs the service life of a sheath under same conditions, has excellent heat, wear, ageing, ultraviolet, oil, acid and alkali resistances, and has the advantages of durability, complete reliability and wide application prospect.

The invention belongs to the technical field of high polymer materials and discloses a lignin/polyolefin thermoplastic elastomer composite and a preparation method thereof. The composite is prepared from components in percentage by mass as follows: 35%-95% of a polyolefin thermoplastic elastomer, 2%-60% of lignin, 0.5%-8% of an additive A and 0-5% of an additive B. The composite has the tensile strength ranging from 10 MPa to 35 MPa and the elongation at break ranging from 300% to 800%. With addition of lignin and the additives, a non-covalent bond connected energy sacrificial bond function is produced between the phase interfaces of the lignin and the polyolefin thermoplastic elastomer, which promotes dispersion of lignin in the polyolefin thermoplastic elastomer, the interfacial compatibility of the lignin and polyolefin is improved, breaking occurs under the action of external force before covalent bonds break, repeated breaking and reconstruction can be realized, the purpose of improving toughness is achieved, and the problem of poor mechanical performance due to poor compatibility of the lignin and polyolefin is solved.

The invention discloses ultraviolet radiation resistant montmorillonite intercalation modified polyurethane paint, and relates to the technical field of special paint. The paint is prepared through the following steps of (1) modifying nanometer SiOx; (2) preparing a titanium dioxide/isocyanate compound; (3) preparing finished product paint. The prepared ultraviolet radiation resistant montmorillonite intercalation modified polyurethane paint has good ultraviolet radiation resistant performance; meanwhile, strong adhesive force, high hydrophobicity and high hardness are realized; the coating film density is high; the comprehensive performance is excellent; the service life is greatly prolonged.

The invention discloses a degradable thin film with a waterproof and moisture permeable function. The degradable thin film is obtained by drying a slurry emulsion, and the slurry emulsion is formed by the following components by weight parts: 70 parts of polyester type polyurethane, 30 parts of polyether polyurethane, 40-50 parts of toluene, 20-30 parts of acetone, 20-30 parts of dimethylformamide, 8-12 parts of diphenylmethane-4,4'-diisocyanate, 1-3 parts of triethanolamine, 1-3 parts of tetra-[beta-(3,5-ditertiary butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester and 0.2-0.5 part of acrylate polymer; the slurry emulsion is processed by using the following process to form the degradable thin film; and the process comprises the following steps of: coating the slurry emulsion on the surface of silicone oil release paper; and sequentially drying under a low-speed flowing air atmosphere under the conditions of 80-100 DEG C, 110-130 DEG C and 150-180 DEG C to obtain the degradable thin film. The degradable thin film disclosed by the invention guarantees the flexibility and the malleability, and also accelerates the forming of the thin film to improve the moisture permeable performance of the thin film.

The invention provides an aromatic diamine monomer. The aromatic diamine monomer has a structure shown as formula (V), in the formula (V), R1 is selected from alkyl, substituted alkyl, phenyl or substituted phenyl; R2 and R3 are independently selected from hydroxyl or a group disclosed in the invention, and are different from each other; and R4 is selected from hydrogen or a group disclosed in theinvention. Compared with the prior art, the aromatic diamine monomer provided by the invention contains an o-hydroxyl benzophenone structural unit; the o-hydroxyl benzophenone structural unit can beintroduced into a polyimide macromolecular chain through copolymerization; when the material is exposed to an ultraviolet radiation environment, the o-hydroxyl benzophenone structure can absorb ultraviolet light and release the ultraviolet light in the form of heat to prevent or delay the damage of ultraviolet radiation to the polyimide material, so that the obtained polyimide material has excellent intrinsic ultraviolet radiation resistance.

The invention relates to a thin-wall double-layer insulated cable with high voltage resistance, which belongs to the technical field of electric wires and cables, and comprises a conductor, and an inner insulated layer and an outer insulated layer combined outside the conductor sequentially, wherein the conductor is a tinned copper wire with a diameter being 0.1-0.3mm; the inner insulated layer is cross-linked polyolefin; and the outer insulated layer is polyvinylidene fluoride. The thin-wall double-layer insulated cable with high voltage resistance has the advantages that a favorable combination effect between the inner insulated layer and the conductor as well as between the inner insulated layer and the outer insulated layer is realized; the inner insulated layer adopts the cross-linked polyolefin and the outer insulated layer adopts the polyvinylidene fluoride, so that the cable has excellent chemical resistance, high temperature resistance, oxidation resistance, weather resistance, ultraviolet radiation resistance and the like; and when the invention is compared with the prior art, the thicknesses of the inner insulated layer and the outer insulated layer are reduced, so that the weight is reduced, and a wiring space is saved.

The invention discloses a blind window plate with diatomaceous earth and a method for preparing the blind window plate, and belongs to the technical field of blind windows. By the aid of the blind window plate and the method, problems of high cost of wood blind windows, easiness in deformation, combustion and aging and short service lives of PVC (polyvinyl chloride) blind windows and pollution due to the fact that the PVC blind windows are non-degradable after being discarded in the prior art can be solved. The blind window plate comprises, by weight, 100 parts of the diatomaceous earth, 100-120 parts of polypropylene carbonate, 4-6 parts of flame retardants, 3-5 parts of epoxidized soybean oil, 2-4 parts of montmorillonite, 2-4 parts of lignin, 1-2 parts of calcium carbonate, 0.5-1 part of primary antioxidants, 0.1-0.3 part of auxiliary antioxidants and 1-3 parts of ultraviolet absorbents. The blind window plate and the method have the advantages that the blind window plate is green and environmentally friendly, is free of pollutant release, difficult to deform, excellent in ultraviolet radiation resistance, heat stability and mechanical property, good in durability and long in service life, can be degraded after being discarded and is flame-retardant, and harmful gas can be adsorbed by the blind window plate.

The invention discloses a drag-type drone solar cell packaging method based on a mesh FPC bottom plate. The method comprises the following steps: a mesh FPC bottom plate is prepared; an adhesive region is coated on the edge of each mesh hole on the mesh FPC bottom plate; the printed circuit of the mesh FPC bottom plate is printed on a non-adhesive region; Affixing solar cell blocks on each mesh; Acomposite EVA material is used to encapsulate the surface layer of the solar cell block and the area not covered by the solar cell block on the reticulated FPC backplane. An advantage of the presentinvention is that by bonding a solar cell at a mesh of a mesh FPC backplane with printed circuits, The EVA material packaging surface layer is specially modulated, which makes the battery lightweight,easy to fold, store and deploy, reduces the energy consumption of flight dragging, and has excellent performance of temperature difference resistance, melting resistance, deformation resistance, ultraviolet radiation resistance, and so on, and has a greater role in promoting the development of unmanned aerial vehicles.

The invention provides an ultraviolet-irradiation-resistant colorless transparent polyimide film and a preparation method and application thereof. The ultraviolet-irradiation-resistant colorless transparent polyimide film is prepared by compounding PI matrix resin shown as a formula I and a hindered amine UV stabilizer, and the number-average molecular weight of the hindered amine UV stabilizer isnot lower than 1000 g/mol. The composite film prepared by fully mixing the PI matrix resin with the UV stabilizer in a proper proportion has excellent heat-resistant stability, high glass transitiontemperature (Tg), high transparency and excellent UV irradiation resistance. The UV-irradiation-resistant colorless transparent polyimide film can be used as a flexible material to be applied to the high-tech fields of solar cells, flexible printed circuit boards, microelectronics, automobiles and the like.

The invention belongs to the technical field of cosmetics, and particularly relates to an apocynum venetum extract and a preparation method thereof, and an anti-ultraviolet anti-oxidation whitening cosmetic and a preparation method thereof. The apocynum venetum extract provided by the invention comprises the following effective components: apocynum venetum essential oil and apocynum venetum polysaccharide, wherein the apocynum venetum polysaccharide has common water-locking and moisturizing effects, also has excellent anti-oxidation and anti-ultraviolet radiation effects, and can protect skinand isolate external irritation, inflammation and ultraviolet pollution; and the apocynum venetum essential oil has excellent tyrosinase inhibition activity, and can further inhibit the generation ofmelanin and play a whitening role. The apocynum venetum extract is applied to the cosmetic, and the cosmetic has the effects of resisting ultraviolet radiation, resisting oxidation and whitening underthe combined action of the apocynum venetum extract and other components.

The invention discloses a reinforced solid core conductor polyvinyl chloride insulation sheath-free dragging-resisting cable. The cable comprises a conductor. A steel core is arranged in the conductor. A polyvinyl chloride insulation layer is arranged outside the conductor. A heat tracing belt is arranged outside the polyvinyl chloride insulation layer. A copper filament shielding layer is arranged outside the heat tracing belt. A polyurethane thermal insulation pipe is arranged outside the copper filament shielding layer. The cable is characterized by low-temperature resistance, wear resistance, ultraviolet radiation resistance, bending and winding resistance and dragging resistance.

The invention provides a high-toughness electric wire protecting jacket material and a preparation method thereof. The high-toughness electric wire protecting jacket material is prepared from the following components: butadiene rubber, an ethylene-vinyl acetate copolymer, a composite filler, a composite additive, carbon black, modified calcium carbonate, diphenyl isophthalate, paraffin, aluminum oxide, stearic acid metal salt, silicone oil, a cross-linking agent and an antioxidant. The protecting jacket material prepared by the invention has good toughness, heat resistance, abrasive resistance, aging resistance ultraviolet radiation resistance, oil resistance, acid/alkali resistance and the other properties, is durable, is simple in raw materials, wide in source, low in cost, simple in preparation process and suitable for industrial popularization and production.

The utility model relates to a high-performance environment-friendly ultraviolet radiation-resistant sheath material, which belongs to the technical field of cables. It includes the following components prepared by weight: 40-50 parts of SG-2 polyethylene resin, 35-45 parts of chlorinated polyethylene, 18-25 parts of EPDM rubber, 1-2 parts of calcium stearate parts, 1-2 parts of zinc stearate, 2-3 parts of ultraviolet absorber, 1-3 parts of antioxidant, 1-2 parts of antioxidant, 20-35 parts of coated kaolin, 5-8 parts of antimony trioxide , 4-8 parts of dioctyl sebacate, 3-5 parts of turpentine, 5-8 parts of activated calcium carbonate, and 1-2 parts of sulfur. The sheath material of the invention has excellent ultraviolet radiation resistance, good flexibility, excellent physical and mechanical properties and flame retardant properties, and is durable, and solves the technology that is difficult to fully meet the requirements of ultraviolet radiation resistance, physical and mechanical properties, and environmental protection properties. It has huge social and economic benefits.

The invention discloses an insulated anti-interference rubber material, and belongs to the technical field of cables. The insulated anti-interference rubber material is prepared from the following components in parts by weight: 20-35 parts of cis-polybutadiene, 15-40 parts of butyl cyanogen rubber, 8-12 parts of liquid isoprene rubber, 7-9 parts of benzoxazine resin, 15-20 parts of attapulgite, 10-15 parts of carbon black, 3-8 parts of an activator, 1-2 parts of polyethylene glycol, 1-5 parts of polyethylene wax, 5-8 parts of a silane coupling agent, 20-30 parts of kaolin, 15-25 parts of modified auxiliaries, 5-12 parts of a plasticizer, 15-25 parts of light calcium carbonate, 10-15 parts of pottery clay and 5-9 parts of magnesium oxide. The insulated anti-interference rubber material is excellent in ultraviolet radiation resistance, is good in softness, has excellent physical mechanical property and flame resistance, is durable in use, lays a raw material foundation for developing anultraviolet radiation resistant power line sheath, and meets UL and European Union ROHS requirements, and is environmentally friendly.