176results about "Agricultural articles" patented technology

The invention provides a manufacturing process of high-heat-insulation ray-proof antibacterial glass. The high-heat-insulation ray-proof antibacterial glass comprises outer-layer glass, a middle functional layer, inner-layer glass and an extensible layer, the manufacturing process comprises a PVB adhesive film preparation process and a laminated glass whole process, wherein the PVB adhesive film preparation process specifically comprises the steps of raw material mixing, melt extrusion, tape casting and coiling; the whole process of the laminated glass comprises the steps of glass pretreatment, interlayer assembly, high-temperature and high-pressure forming and post-treatment and quality inspection. According to the design scheme of the multi-film composite laminated glass, based on the structural characteristics of the laminated glass, a layered ray-blocking customized glass scheme is provided in combination with the combination of heat-insulating PVB films and other films with different functions, and the scheme is suitable for scenes such as sunlight rooms, agricultural planting or market curtain walls and the like.

The invention provides a nutrient slow-release synergistic seedling transplanting disc and application thereof. The nutrient slow-release synergistic seedling transplanting disc is composed of a disc body and a seedling cup, the disc body is composed of two layers of materials including PBAT and PLA, the seedling cup is composed of three layers of materials, the inner layer is made of the PBAT material, the middle layer is a strip-shaped fertilizer belt made of macroelements, organic fertilizer, bacterial fertilizer and microelements, and the outer layer is made of the PLA material. The nutrient slow-release synergistic seedling transplanting disc integrates seedling raising and fertilization and can be used for seedling transplanting of grafted seed melons, seedling cups are directly transplanted into soil during transplanting, seedlings and the disc do not need to be manually separated, the seedling transplanting disc does not need to be recycled and transported after transplanting, the seedling cups in the soil isolate damage of salt, alkali and diseases and insect pests to seedling roots, and the seedling transplanting disc is convenient to use. Meanwhile, nutrient substances are slowly released, nutrients needed by melon seedlings are accurately met, the problem that an original seedling raising plate pollutes the environment is solved, and the problems that roots are damaged during transplanting, fertilization is balanced, the growth environment of the roots is poor and germs are harmed are solved.

The invention relates to the technical field of heat preservation, and particularly discloses a light-weight composite heat preservation quilt for a greenhouse and a preparation method of the light-weight composite heat preservation quilt. The light-weight greenhouse composite heat preservation quilt comprises two waterproof layers and a heat preservation layer, the heat preservation layer is located between the two waterproof layers, and the heat preservation layer is prepared from, by weight, 60-85 parts of polyurethane, 5-8 parts of modified silicon dioxide aerogel, 0.5-1.2 parts of composite flame retardant and 15-25 parts of foam stabilizer; in addition, the preparation method has the advantages that the heat preservation effect of the heat preservation quilt is guaranteed, meanwhile, the mass of the heat preservation quilt is reduced, and durability is improved.

The invention discloses a composite film based on light-biological synergistic gradient degradation and a preparation method thereof, the composite film sequentially comprises a light response layer, a transition layer and a biological response layer from outside to inside, and the light response layer comprises a polycaprolactone matrix, a tetraphenylporphyrin iron photosensitizer and anatase type TiO2 nanorods; the transition layer is a gradient blend of polylactic acid and modified starch; the biological response layer comprises polyhydroxyalkanoate and bacterial cellulose nanofibers; through the design of the three-layer gradient structure and the construction of the bionic microchannel, the synergistic effect of light degradation, hydrolysis and biodegradation is realized; the composite membrane has excellent mechanical properties and environmental adaptability, the degradation period can be accurately regulated and controlled within 30-180 days, and the soil degradation rate within 60 days reaches 91% or above; the preparation method comprises the processes of electrostatic spinning, gradient co-extrusion and bacterial cellulose in-situ culture. The material can be widely applied to the fields of agricultural mulching films, food packaging and the like, and the problems that a traditional degradable film is poor in mechanical property and uncontrollable in degradation are solved.

The present invention discloses a heat-insulating and heat-preserving film, its preparation method and application. The heat-insulating and heat-preserving film includes a light conversion layer, a heat-insulating layer disposed on one side of the light conversion layer, and a heat-preserving layer disposed on the other side of the light conversion layer; the light conversion layer includes a light conversion agent, and the light conversion agent includes a blue light conversion agent and a red light conversion agent; the heat-insulating layer includes a heat-insulating material; the heat-preserving layer includes a heat-preserving material. The heat-insulating and heat-preserving film of the present invention can regulate the temperature in the greenhouse, enable plants to grow at an appropriate temperature, promote their growth and development, and improve the quality of fruits.

The invention discloses a spectral selective greenhouse cooling water-saving film and a preparation method thereof. The film sequentially comprises a polymer thermal radiation material layer, a metal coating and a polymer multilayer optical film from top to bottom. Wherein the polymer thermal radiation material layer on the top layer can dissipate heat in a thermal radiation form; the metal coating on the middle layer is used for reflecting near-infrared light with the wavelength larger than 800 nm; the polymer multilayer optical film on the bottom layer is used for reflecting green light of 500-600 nm. The spectrum separation technology and the radiation refrigeration technology are coupled, the polymer multilayer film and the metal coating are combined, the polymer multilayer film is used for replacing a dielectric layer in traditional coating, the technological process is effectively simplified, the cost is greatly reduced, and the machining speed is increased; in addition, the polymer multilayer film can serve as a protective layer of a metal coating, the oxidation speed of the metal coating is slowed down, and the overall durability of the film material is improved.

The invention relates to a full-biodegradable mulching film and a preparation method thereof, and belongs to the technical field of biodegradable materials. The full-biodegradable mulching film is prepared from the following components in percentage by mass: 60 percent to 65 percent of PBAT, 25 percent to 35 percent of bamboo micro powder master batch, 1 percent to 3 percent of tow protein, 0.2 percent to 0.5 percent of rosemary extract, 1 percent to 3 percent of tea polyphenol, 0.3 percent to 0.7 percent of chain extender, 0.8 percent to 1.2 percent of PETS, 0.3 percent to 0.7 percent of anti-hydrolysis agent, 0.3 percent to 0.7 percent of magnesium sulfate whisker and 0.1 percent to 0.3 percent of antioxidant. According to the invention, PBAT is taken as a main body material, the ultrathin mulching film is prepared through the rigidity enhancement effect of the bamboo micro-powder master batch, the toughening effect of the tow protein and the composite function system of the tea polyphenol and the rosemary extract in combination with a five-layer co-extrusion film blowing process, and the problems that the existing similar mulching film is insufficient in mechanical property, the water vapor barrier rate exceeds the standard, and the mulching film is difficult to be ultrathin are solved.

The invention provides a seven-layer co-extrusion pesticide-resistant high-barrier agricultural film and a production process thereof, and belongs to the technical field of agricultural film preparation. The agricultural film comprises a first outer layer, a first transition layer, a first heat preservation layer, a barrier core layer, a second heat preservation layer, a second transition layer and a second outer layer. The outer layer I is prepared from the following raw materials: polylactic acid, metallocene linear low-density polyethylene, a compatibilizer, a flexibilizer, a heat-insulating master batch and an anti-aging master batch; the outer layer II is prepared from the following raw materials: polylactic acid, metallocene linear low-density polyethylene, a compatibilizer, a heat-insulating master batch and an anti-aging master batch; the transition layer I and the transition layer II are prepared from the following raw materials: low-density polyethylene, metallocene linear low-density polyethylene, anti-aging master batch and heat-insulating master batch; the first heat preservation layer and the second heat preservation layer are prepared from ethylene-vinyl acetate copolymer resin, anti-aging master batch and heat insulation master batch. The barrier core layer is prepared from the following raw materials: an ethylene-vinyl alcohol copolymer, modified organic montmorillonite and an anti-aging master batch. The agricultural film disclosed by the invention has the properties of high barrier, pesticide resistance, degradability and the like.

A barrier film includes: a first layer including calcium carbonate; and a second layer on the first layer, the second layer including an ethylene vinyl alcohol copolymer. A container includes at least one side including a barrier film including: a first layer including calcium carbonate; and a second layer on the first layer, the second layer including an ethylene vinyl alcohol copolymer.

Thin multilayer films fabricated from molten blends of stock plastic resin and post-consumer recycled plastic materials are described. The thin multilayer films maintain robust physical and mechanical properties as compared to thin films fabricated from stock plastic resins and as compared to prior art multilayer films that incorporate PCR plastic materials. Generally, the thin multilayer films with post-consumer recycled plastic maintain at least 70% of the value of a mechanical property when compared to film without the post-consumer recycled plastic material. The multilayer film may contain about 60% post-consumer recycled plastic materials yet maintain structural integrity. The multilayer film may include white or unpigmented post-consumer recycled plastic materials or a blend of white and unpigmented post-consumer recycled plastic material.

The invention relates to the technical field of building energy conservation and water resource utilization, and discloses a multifunctional AKLBT dual-network hydrogel system and a preparation method and application thereof, the multifunctional AKLBT dual-network hydrogel system comprises AKLBT dual-network hydrogel and a PAN / PVDF coated CNTs / ppy composite photo-thermal layer; wherein the AKLBT dual-network hydrogel takes acrylamide and konjac glucomannan as monomers, and LiCl, BaSO4 and TiO2 are doped into the monomers; the PAN / PVDF-coated CNTs / ppy composite photo-thermal layer is attached to the surface of the hydrogel to construct a photo-thermal conversion interface. Through a three-in-one synergistic mechanism of radiation cooling, adsorption water collection and photo-thermal evaporation, zero-energy-consumption cooling of the building and efficient capture of atmospheric water resources are achieved, stable recycling can be achieved, and an integrated solution is provided for building hydrothermal collaborative management.

The present invention relates to a flexible tubular device (1) suitable for forming a lower stop fitted to the floor (L4) of a livestock building (E) for cattle. The flexible tubular device (1) comprises: - a flexible casing (11) made of a flexible material, comprising: - a tubular strip (111), an inner surface (111a) of which defines a longitudinal duct (C); and - a radial longitudinal strip (112) laterally extending from the tubular strip (111); and - a tubular member (12), made of a flexible, fluid-tight material, inserted into the longitudinal duct (C) and intended to be filled with a fluid.

The application discloses an agricultural irrigation water hose and a preparation method thereof. The agricultural irrigation water hose comprises, from top to bottom, a braided layer, a hot melt adhesive layer and an inner film layer, wherein the braided layer is made of polypropylene yarn. The irrigation water hose has the following advantages: 1) the adhesion strength between the inner film and the outer polypropylene yarn braided layer is greater than or equal to 15 n at a width of 50 mm after the irrigation water hose is normally rolled and placed for 24 hours; and 2) after being placed in an outdoor high-temperature environment of 75 DEG C for 30 days, the inner film and the outer polypropylene yarn braided layer of the water hose do not produce delamination, and the inner film does not become hard at a low temperature of -25 DEG C.

The present disclosure provides a film for enhancing the growth of plants in the Cannabaceae family, the film being capable of blocking solar spectrum in the range 430-550 nm. The present disclosure also provides a single- or multi-layer plastic greenhouse film for enhancing cannabis plant growth, where the single- or multi-layer plastic greenhouse film (a) has at least one blue light blocking layer for blocking solar spectrum in the range of 430-500 nm; (b) has a high transmittance for red light in the solar spectrum in the range of 600-750 nm.

The invention discloses a flame-retardant, water-retention, heat-preservation and moisture-retention blanket and a preparation method and application thereof, and belongs to the technical field of composites.The flame-retardant, water-retention, heat-preservation and moisture-retention blanket is of a multi-layer composite structure and comprises flame-retardant canvas, an aluminum foil rubber and plastic plate, composite geotechnical cloth and adhesive felt; the flame-retardant canvas comprises woven cloth and a coating; the coating at least comprises a flame-retardant coating; the flame-retardant coating comprises the following components in parts by weight: 50-80 parts of polyvinyl alcohol and 20-40 parts of a flame retardant; the flame retardant comprises a multi-effect flame retardant and a boric acid-based compound in a mass ratio of (13-22): (0.8-1.2); by optimizing the combined design of the flame-retardant canvas, the aluminum foil rubber and plastic plate, the composite geotechnical cloth and the adhesive felt and combining a novel boric acid-based nano composite flame-retardant coating technology, the synergistic improvement of flame-retardant, heat-insulating, moisture-preserving and water-retaining functions is realized.

The present invention relates to a single-layer or multilayer coated polyester film having a transparency of at least 92%, with the polyester film having a first surface and a second surface, in which a permanent anti-fog coating has been applied to at least one of the surfaces of the polyester film and the anti-fog coating includes at least one water-soluble polymer, an inorganic, hydrophilic material and a crosslinker. The water-soluble polymer is a polyvinyl alcohol or a hydrophilic polyvinyl alcohol copolymer. Furthermore, the present invention relates to production processes for the coated polyester film and to energy saving mats in greenhouses produced therefrom.

The present invention relates to a multilayer polyethylene film for soil solarisation comprising two linear low density polyethylenes, a soil solarisation system comprising the multilayer polyethylene film and the use of the multilayer polyethylene film for soil solarisation.

A stabilizer mixture comprising a sterically hindered amine light stabilizer, a triazine UV absorber, and a benzophenone UV absorber.

The polymer can include a copolymer of ethylene and vinyl acetate, wherein at least a portion of the ethylene is derived from a renewable carbon source, and wherein the copolymer has a melt index (190°C / 2.16 kg) according to ASTM D1238 in the range of 0.12 to 8.0 g / 10 min.

This disclosure relates to ethylene interpolymer compositions, films prepared therefrom and a nonlinear rheology method capable of determining presence of long-chain branched structures in these ethylene interpolymer compositions. Ethylene interpolymer compositions disclosed herein specifically relates to ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, Δint., greater than or equal to 0.01, satisfying 0.01×(Z−48)0.78≤Δint.≤0.01×(Z−60)0.78 inequality wherein Z is a normalized molecular weight defined byZ=MwMewhere Mw and Me are the weight average and entanglement molecular weights; and a residual catalytic metal of from ≥0.03 to ≤5 ppm of hafnium. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg / minute, a density from about 0.855 to about 0.975 g / cc, a polydispersity, Mw / Mn, from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI50) from about 1% to about 98%.

The invention relates to a laminate (1) comprising an adhesive layer (5) made of a one-component adhesive composition wherein the functional groups of the one-component consist of isocyanate moieties and the composition does not contain any polyurethane having a weight average molecular weight of 20000 g / mol or more. The invention also relates to a laminate comprising an adhesive layer (5) made of a one-component adhesive composition applied at a dry coating weight of less than 1 g / m2. The invention also relates to a laminate comprising an adhesive layer (5) made of a one-component adhesive composition which is curable under moisture-free conditions. The invention also relates to a laminate comprising an adhesive layer (5) made of a one-component adhesive composition having a concentration of isocyanate groups in the range of 0.5 to 10%.

The invention relates to a Polyethylene-based arrangement (8) with a thickness of less than 250 µm for the storage of grain, silage, warm or wet industrial products, comprising at least one outer layer (1), at least one inner layer (7) and only one barrier layer (5). The arrangement (8) comprises at least one PE based functional layer (3) to reduce the oxygen permeability of the polyethylene-based arrangement (8) to less than 50 cm3 / m2 d bar according to ASTM D3985.

The present disclosure provides composite materials comprising nettings, mattings or meshes thermally bonded to outer layers of nonwoven fibers that may be configured for use in a variety of applications and products. A composite material comprises a first layer of netting comprising intersecting strands and a second layer in contact with the first layer. The second layer comprises first and second fiber components. The first fiber components have a melting point at least 20 degrees higher than the melting point of the netting. The second fiber components have a melting point within 20 degrees Celsius of the fibers in the netting layer. This allows the second fiber components to thermally bond with the netting at contact points upon the application of heat and pressure. The first fiber components do not substantially thermally bond to the netting and thus form an outer layer, such as a sock, that protects the netting layer.

The present disclosure provides a film. In one embodiment, the film includes a core structure having a first side and an opposite second side. The core structure includes a release layer. The release layer is on the first side and is comprised of an ethylene-based polymer. An adhesive layer is on the second side of the core structure. The adhesive layer contains an acrylic polymer. The film has an adhesion at 100% stretch of from 300 g to 1100 g.

Provided is a composition described below as an EVOH resin composition having an increased thermal decomposition temperature at the time of melt-molding and excellent thermal stability. An ethylene-vinyl alcohol copolymer composition containing an ethylene-vinyl alcohol copolymer and a titanium compound, wherein the ethylene-vinyl alcohol copolymer has a saponification degree of more than 91 mol% and 99.5 mol% or less, and a content of the titanium compound in terms of metal is 0.001 ppm or more and less than 5 ppm per mass of the ethylene-vinyl alcohol copolymer composition.

The present invention is related to a laminate (1), comprising an adhesive layer (5) made from a one-component adhesive composition, wherein the functional groups of said one component consist of isocyanate moieties, and which composition does not contain any polyurethane, said polyurethane having a weight average molecular weight of 20000 g / mol or more. The present invention is furthermore related to laminate comprising an adhesive layer (5) made from a one-component adhesive composition that is applied with a dry coating weight of less than 1 g / m2. The present invention is furthermore related to laminate comprising an adhesive layer (5) made from a one-component adhesive composition that is curable under moisture-free conditions. The present invention is furthermore related to laminate comprising an adhesive layer (5) made from a one-component adhesive composition that has a concentration of isocyanate groups in the range from 0,5 to 10%.

The invention discloses a frequency spectrum thin film for helping plant growth and development and improving disease resistance, and particularly relates to the technical field of thin films, the frequency spectrum thin film comprises a temperature-sensitive polymer matrix, photosensitive nanoparticles and a frequency spectrum conversion material, is of a three-layer composite structure, can dynamically adjust the transmittance of 400-700nm wave bands according to environment temperature and illumination intensity, optimizes plant photosynthesis spectrums, and improves the disease resistance of plants. Meanwhile, the advantages of waste infrared light utilization, hydrophobicity, pollution resistance, disease resistance enhancement, biodegradability, accurate spectrum management and the like are achieved, and the processing method can guarantee uniform material dispersion, uniform film light transmission and high microbial inoculum survival rate. The defects of a traditional film in plant planting application are effectively overcome, and the film has important significance in promoting plant growth, improving crop quality and reducing environmental pollution.

The expanded multilayer integral geogrid includes an inner layer comprising a plurality of oriented strands 205 interconnected by partially oriented junctions 235 having an array of openings. Preferab

Method for manufacturing a bio-based geotextile. The present invention relates to a method for manufacturing a geotextile (12), characterized in that it comprises: - supplying a first layer (14) of woven natural fibers; - supplying a second layer (16) of natural fibers; - superimposing the first layer (14) onto a conveyor belt (20), and the second layer (16) onto the first layer (14); and hydrobonding the first layer (14) with the second layer (16) by high-pressure water jet through the first and second layers. Figure for the abstract: Figure 1