57 results about "Palm fiber" patented technology

The invention relates to the technical field of palm fiber testing, in particular to a palm fiber bending elasticity testing device based on multi-angle adjustment, which comprises a clamping device, a point position adjusting assembly, an angle adjusting assembly and a loading device, the clamping device is arranged above the electronic scale; the point location adjusting assembly is connected with the base; the angle adjusting assembly is connected with the clamping device; the loading device is connected with the point location adjusting assembly; through the point position adjusting assembly and the angle adjusting assembly, bending elasticity testing of different point positions and different angles can be achieved, in the testing process, the loading assembly can drive the clamping assembly to increase the clamping force on the palm fibers along with increase of the bending variation of the palm fibers, it is guaranteed that the palm fibers do not slip or twist in the testing process, and the detection precision is improved; the problems that in the palm fiber testing process, torsion and slippage can occur along with the increase of the bending amount, so that the testing result is inaccurate, and single-point single-angle testing cannot reflect the elasticity of the palm fiber practically are solved.

The invention discloses a natural plant-based spinning yarn and a preparation method thereof, and relates to the technical field of spinning yarns. When the natural plant-based spinning yarn is prepared, palm fibers are pretreated with a sodium chlorite solution and a sodium hydroxide solution, and pretreated palm fibers are prepared; reacting the pretreated palm fibers with ammonium dihydrogen phosphate to prepare phosphorylated modified palm fibers; reacting the phosphorylated modified palm fibers with calcium nitrate, diammonium hydrogen phosphate and allylphosphonic acid to grow hydroxyapatite in situ, so as to prepare hydroxyapatite composite palm fibers; 4-allyl thiosemicarbazide reacts with salicylaldehyde to prepare an antibacterial agent intermediate, and the antibacterial agent intermediate is complexed with copper ions to prepare an antibacterial agent; grafting an antibacterial agent and an anti-aging agent on the hydroxyapatite composite palm fibers to prepare modified palm fibers; and spinning the modified palm fiber to obtain the natural plant-based spun yarn. The prepared natural plant-based spinning yarn has the advantages of being high in breaking strength, antibacterial, flame-retardant and anti-aging.

The invention discloses a composite bio-based suspension purification system based on a near-natural water ecology concept, and belongs to the technical field of water ecology diversity restoration. The system is composed of an emergent aquatic plant ecological design module, a bio-based suspension core, a microorganism cultivation bed, an intelligent underwater oxygenation and aeration module, an artificial ecological fish reef and a submerged plant planting module. Wherein the bio-based suspension core is of a four-layer gradient composite structure and comprises a polyester fiber filler layer, an active carbon fiber sponge layer and a palm fiber bio-base layer, and synergistic purification of physical adsorption, chemical degradation and biological metabolism is achieved. The intelligent aeration module dynamically regulates and controls the aeration intensity through multi-parameter sensor linkage and a fuzzy PID algorithm, and the oxygen transfer efficiency is larger than or equal to 35%. According to the invention, through coupling design of aperture gradient distribution (80-92% porosity) of the four-layer gradient bio-based suspension core and a dynamic response threshold value of a fuzzy PID algorithm, collaborative optimization of carrier structure parameters and control system parameters is realized for the first time. The innovative technology not only improves the stability and diversity of an ecological system, but also strengthens the natural purification capacity of a water body, and provides a new thought for water environment protection.

The invention relates to the technical field of industrial product detection, and discloses an arenga engleri fiber process product defect detection method based on computer vision. The method comprises the following steps: constructing an image acquisition device, and preprocessing an obtained surface image flow of the arenga engleri fiber process product to determine an image area and a background area of the arenga engleri fiber process product; setting a defect identification standard, and presetting a defect judgment threshold value for defect preliminary screening; a multi-scale feature extraction model is constructed, the model comprises a bottom-layer feature extraction layer, a middle-layer feature fusion layer and a high-layer feature classification layer, and a feature extraction strategy is obtained based on the hierarchical structure and parameter configuration self-adaption; extracting texture features of the image area of the arenga engleri fiber craft product to obtain surface feature vectors of the arenga engleri fiber craft product; and creating a defect classifier, and carrying out classification processing and defect type identification on the feature vectors by adopting a feature extraction strategy. The method can adapt to texture complexity of arenga engleri fiber products, and efficient and accurate defect detection is realized.

The invention relates to the technical field of soil carbon improvement, and discloses a composite biological stimulant for tropical rainforest soil carbon improvement and a preparation method and application thereof, the composite biological stimulant is obtained by mixing a microbial preparation, an immobilized carrier, porous biochar, an inorganic mineral compound, a slow release fertilizer, a soil conditioner and a plant symbiotic inoculant; the microbial preparation comprises one or more of lactic acid bacteria, nitrifying bacteria, phosphate solubilizing bacteria, nitrogen-fixing bacteria and arbuscular mycorrhizal fungi; the inorganic mineral compound comprises feldspar, apatite and montmorillonite; the slow-release fertilizer comprises biochar, humic acid and phosphate; the soil conditioner comprises biological colloid prepared from seaweed extract and natural plant fiber prepared from straw and palm fiber; the plant symbiotic inoculant comprises rhizobium and / or endophyte. According to the composite biological stimulant, the soil carbon fixing capacity of the tropical rainforest is remarkably improved, the soil void structure is improved, and the plant growth capacity is enhanced.

The invention discloses a composite base material for ecological slope protection, a preparation method of the composite base material and a slope protection method, and the composite base material comprises sandy loam serving as a matrix of the composite base material; the polyacrylamide forms a continuous cementation network on the surfaces of the sandy loam particles and solidifies the sandy loam particles, and the mixing amount of the polyacrylamide is 0.6%-1.0%; the coal ash is filled in sandy loam soil pores and hydrated to generate C-S-H gel covering the surfaces of sandy loam soil particles, and the doping amount of the coal ash is 1.0%-3.0%; the palm fibers are of a three-dimensional net-shaped reinforced structure in the sandy loam soil, and the mixing amount of the palm fibers is 0.6%-1.2%; the polyacrylamide, the fly ash and the palm fibers jointly form a composite base material containing cementing, filling and reinforcement in the sandy loam soil; according to the scheme, slope protection and ecological restoration are achieved, the composite base material is innovatively designed, the scheme with both ecological benefits and economical efficiency is provided for ecological restoration of the rock slope in the high-cold and high-altitude area, and the scheme has important reference value for sustainable development of ecologically fragile areas in China.

The utility model discloses a palm sole which comprises an insole and a sole body, the edge of the insole is provided with a wrapping edge arranged in a surrounding mode, the sole body is fixedly connected to the bottom face of the insole and the bottom face of the wrapping edge, and the wrapping edge and the sole body are combined to form a concave structure with an opening in the top. The insole is formed by staggering and overlapping at least three layers of palm fiber sheets and tightly gluing the palm fiber sheets, the edge and the bottom surface of the insole are fixedly connected in the concave structure, the top surface of the insole and the top surface of the covered edge are positioned on the same horizontal plane, and the top surface of the insole is a net-shaped rough surface. The palm sole has good air permeability and water and sweat absorption functions, can effectively keep feet dry and comfortable, reduces peculiar smell, can provide certain elasticity and cushioning performance, relieves foot pressure, improves wearing comfort, and is safe and environment-friendly to use.

The invention discloses a raw material winding device for plant fiber production. The raw material winding device comprises a rack, first air cylinders are symmetrically arranged on one side of the upper surface of the rack, a supporting frame is installed at the output ends of the first air cylinders, a driven shaft is rotationally connected to the upper portion of the supporting frame, and a fixing assembly is arranged on one side of the driven shaft. Through the arrangement of the cutting mechanism, the limiting mechanism and the displacement mechanism, compared with the prior art, a whole roll core can be fed at a time and wound into a palm fiber coiled material according to a fixed distance, the purpose that the whole roll core is cut into multiple sections of palm fiber coiled materials with the same length according to the fixed distance is achieved, and in an existing mode, the roll core with the fixed length needs to be fed; the palm fiber bundle is wound on the surface of the palm fiber roll material, then the wound palm fiber roll material is taken down, and then a new roll core is fed, compared with the prior art, the device does not need to frequently feed a plurality of roll cores, so that fixed-distance cutting, automatic discharging and automatic supplement of roll cores with a certain length can be realized, and the winding efficiency is effectively improved.

The invention discloses ecological concrete based on modified livistona chinensis fiber and lycoris powder film-coated fertilizer as well as a preparation method and application of the ecological concrete. The ecological concrete is prepared from the following raw materials in parts by weight: 200 to 400 parts of cement, 600 to 800 parts of coarse aggregate, 5 to 10 parts of modified livistona chinensis fiber, 20 to 60 parts of coated fertilizer particles, 50 to 140 parts of water and 1 to 3 parts of polycarboxylate superplasticizer. The livistona chinensis fiber has catalytic activity after being modified. And the film coating material of the film coating fertilizer particles is lycoris powder. By utilizing the synergistic effect of the modified livistona chinensis fiber and the lycoris powder, on one hand, the catalytic activity of the livistona chinensis is excited through particle treatment, the decomposition of the lycoris powder serving as a fertilizer coating material is facilitated, and the release rate of a fertilizer in concrete is increased; the bonding force between the livistona chinensis fibers and the concrete is enhanced, and the strength of the concrete is improved. On the basis that traditional plant fibers are utilized in concrete to improve the mechanical property of the concrete, the modified livistona chinensis fibers and the lycoris powder are innovatively and organically combined, so that the mechanical property of the ecological concrete is improved, and the fertilizer release rate is increased.

The utility model provides a palm fiber wet-process material preparation and dehydration device which comprises an installation frame, a hopper is arranged on one side of the surface of the installation frame, an arc-shaped sieve plate is laid on the lower portion of the hopper, a tooth roller is installed in the hopper, a chain plate is arranged on the surface of the installation frame and located below the hopper, and the tooth roller is installed in the chain plate. The chain plate is provided with a material stirring roller, the surface of the chain plate is provided with a chain plate cover, the chain plate cover is internally provided with a plurality of air knives, and the tooth roller is used for blanking operation of fibers. According to the palm fiber wet-process material preparation and dehydration device, the arc-shaped sieve plate is arranged in the hopper, the tooth roller is matched with the chain plate cover with the chain plate and the plurality of air knives for use, the moisture content of palm fibers can be uniform, the fibers are not wound and knotted, the fibers are uniformly arranged, and metering in a next working section is facilitated.

The invention discloses a production technology of a jute environment-friendly coir mat with a three-dimensional structure, and relates to the technical field of jute coir mat production.The production technology comprises the following steps that S1, raw material pretreatment is conducted, specifically, raw jute is sequentially subjected to three-stage degumming including anionic surfactant solution soaking, pectinase treatment, lignin peroxidase treatment and caustic soda boiling-off, performing countercurrent cleaning and vacuum drying to obtain flexible fibers; s2, mixing fibrils: mixing the pretreated jute fibers with palm fibers and ramie fibers in proportion to form a mixed fiber raw material; s3, opening and carding: performing loosening treatment on the mixed fibers by a bidirectional opener, and preparing flocculent fibers by a carding machine; the flocculent fiber filaments are sprayed to a lapping machine through an exhaust fan, the lapping machine reciprocates at the constant speed of 1.5-2.5 m / s in the direction perpendicular to the spraying direction, the fiber flexibility can be improved, a three-dimensional supporting structure can be constructed, and a formaldehyde adding source can be eliminated.

This utility model discloses an anti-slip mattress, including a palm fiber mat. Multiple silicone particles are evenly fixed to the bottom of the palm fiber mat. An anti-slip cloth is laid on top of the palm fiber mat, and a latex mattress is placed on the anti-slip cloth. Several wavy grooves are evenly spaced longitudinally on the top of the latex mattress. Positioning mechanisms are fixedly installed on both sides and the front of the palm fiber mat. Each positioning mechanism includes a positioning band, which is fixedly installed on the upper outer wall of the palm fiber mat. Several first sub-buckles are fixedly installed on one side of the top of the positioning band, with the first sub-buckles positioned close to the palm fiber mat. A female buckle is fixedly installed on the other side of the top of the positioning band. The female buckle and the first sub-buckles are locked together. This utility model solves the problem that existing nursing beds often experience mattresses and mattresses slipping during use, which not only affects patient comfort but also adds extra workload for caregivers.

The application discloses a spliced artificial fish nest and a use method, relates to the technical field of artificial breeding, and comprises a storage barrel and a placing assembly. The circumferential surface of the storage barrel is provided with four corresponding flow guide holes. The inside of the storage barrel is provided with a palm fiber egg bed. The circumferential surface of the storage barrel is provided with four corresponding flow guide assemblies. The four flow guide assemblies correspond to the four flow guide holes. The surface of the right flow guide assembly is provided with a connecting assembly. The lower end of the storage barrel is provided with a supporting assembly. The lower end of the supporting assembly is provided with a counterweight assembly. The upper end inside the storage barrel is provided with a fastening assembly. The modularized splicing design can realize adjustable layout, the elastic fixing mechanism can guarantee the stability of the internal egg bed, the multiple sealing and filtering structure can prevent the escape of fry and the invasion of impurities, and the adjustable supporting system and the water surface indicating device can improve the deployment convenience and management efficiency.

The application relates to the technical field of high polymer composite materials, and more specifically relates to a high-strength and high-toughness PHA plant fiber composite material and a preparation method thereof.A high-strength and high-toughness PHA plant fiber composite material comprises the following raw materials in parts by mass: 60-80 parts of polyhydroxyalkanoate, 20-30 parts of modified palm fiber, 1-5 parts of a plasticizer and 2-4 parts of a nucleating agent, wherein the modified palm fiber is palm fiber modified by long-chain fatty acid.The PHA plant fiber composite material has excellent strength and toughness, excellent ultraviolet resistance and excellent degradability.

The application discloses a raw material winding device for plant fiber production, which comprises a rack, a cylinder one is symmetrically arranged on one side of the upper surface of the rack, a support frame is installed on the output end of the cylinder one, a driven shaft is rotatably connected above the support frame, and a fixing assembly is arranged on one side of the driven shaft. Compared with the prior art, the device can load one whole winding core at a time through the arrangement of the cutting mechanism, the limiting mechanism and the displacement mechanism, and wind the winding core into palm fiber coiled material at a fixed distance, so that one whole winding core is cut into multiple equal-length palm fiber coiled materials at a fixed distance. The existing mode needs to load winding cores with a fixed length, wind palm fiber bundles on the surface of the winding cores, and then take down the wound palm fiber coiled material, and then load new winding cores. Compared with the existing mode, the device does not need to frequently load multiple winding cores, so that fixed-distance cutting, automatic unloading and automatic replenishment of winding cores with a certain length can be realized, and the winding efficiency is effectively improved.

The concrete additive is prepared from the following raw materials in parts by weight: modified red mud, wheat orange ash, nano silicon carbide, graphite, composite fibers, a super plasticizer, dipropylene glycol, waterborne polyurethane, a high-efficiency water reducing agent, a high-efficiency retarder and a fiber dispersant. The composite fiber is a mixture of towel gourd fiber, palm fiber and carbon fiber; the red mud is doped into concrete to prepare the high-ground-temperature tunnel lining concrete, all the raw materials are matched with one another, the red mud is matched with the nanometer silicon carbide and the graphite to achieve the micro-filling and macro-reinforcing effects, and the mechanical property and durability of the concrete are improved through cooperation of the three materials; a fiber network formed through interaction among the composite fibers can block a heat transfer path and reduce the heat conduction performance of the concrete, and the composite fibers complement each other in physical properties and mechanical properties through microcrack blocking, bridging effect and rigidity complementation, so that the crack resistance, toughness and impact resistance of the concrete are improved.

This invention discloses a modified palm fiber, its preparation method, and its application. The preparation method includes: subjecting palm fiber to alkali washing to obtain alkali-treated palm fiber; wherein the alkali-treated palm fiber has a porous internal structure; subjecting a mixed reaction system containing the alkali-treated palm fiber, methanol, and a catalyst to an esterification reaction to obtain esterified palm fiber; and reacting the esterified palm fiber with a carbon-based conductive agent and tri-n-butylmethylammonium bis(trifluoromethanesulfonyl)imide to obtain modified palm fiber. The modified palm fiber prepared by this invention exhibits excellent antistatic properties, and the carbon-based and non-carbon-based conductive agents bond well with the fiber. It can be woven or used in plant fiber-filled composite materials, and the surface resistivity of the palm fiber can preferably reach 10 Ω·cm. 8 With a strength of Ω*cm, it reaches the antistatic level, expanding the application scenarios of palm fiber.

The utility model discloses a palm type insole which comprises an insole fabric layer and a palm layer, the palm layer is formed by pressing palm filaments, the palm layer is of an elastic loose porous structure, and the palm layer is located at the bottom of the insole fabric layer. The breathable insole is simple in structure, reasonable in design, good in breathability, good in water absorption and sweat absorption effect, moderate in hardness and capable of improving the comfort degree of the insole. In addition, the insole fabric layer and the palm layer can be directly fixed together in a hot-pressing connection mode, glue is not needed, and the insole is free of peculiar smell, safe and environmentally friendly.

The invention discloses a plant fiber product forming, stacking and trimming production line which comprises a rack, a conveying mechanism and a trimming mechanism are arranged on the rack, and a stacking mechanism is arranged on the side, close to the conveying mechanism, of the rack. The stacking mechanism comprises sliding grooves symmetrically and fixedly formed in one side of the rack, a first stepping motor fixedly arranged on one side of the rack and a positive and negative tooth lead screw located at the output end of the first stepping motor. Through the arrangement of the conveying mechanism, the stacking mechanism and the edge cutting mechanism, seamless connection with an upstream intelligent heat treatment production line is achieved; palm fiber materials subjected to heat treatment modification are continuously conveyed by the conveying mechanism, the edge cutting mechanism continuously cuts the palm fiber materials into sheet-shaped palm fiber materials with the equal length, the stacking mechanism descends by the height of one thickness every time to achieve stacking of the palm fiber materials, and compared with a manual stacking mode, the automatic stacking mode has the advantages that the stacking efficiency is improved, and the stacking efficiency is improved. The working efficiency is effectively improved, the labor intensity of workers is reduced, and the convenience is improved.

The invention discloses a high-toughness plate and a preparation method thereof. Comprising the following raw materials in parts by weight: 30-50 parts of modified palm fiber, 30-50 parts of modified aupoz fiber, 10-20 parts of filler, 20-30 parts of adhesive, 3-10 parts of fire retardant, 3-5 parts of dispersing agent and 20-40 parts of water. The modified palm fibers and the modified aupoz fibers are adopted as main materials of the prepared board, the toughness of the material is remarkably improved, the hazelnut shell powder and talcum powder composite filler in the components are applied, the tensile property of the material is enhanced, and synergistic interaction is achieved.

The invention provides flame-retardant degradable plastic as well as a preparation method and application thereof, and belongs to the technical field of flame-retardant materials. The flame-retardant degradable plastic provided by the invention is prepared from the following raw materials in parts by mass: 80 to 90 parts of PET (Polyethylene Terephthalate), 0.5 to 1.5 parts of flame retardant, 0.5 to 0.8 part of fiber, 5 to 10 parts of compatilizer, 0.5 to 1.0 part of antioxidant and 0.5 to 1.0 part of lubricant, the fibers comprise moso bamboo fiber powder and palm fibers. According to the flame-retardant degradable plastic, the moso bamboo fiber powder and the palm fiber are adopted, and the two fibers play a complementary role and can form a composite network structure in a PET matrix, so that stress is more effectively dispersed, and the mechanical property of the flame-retardant degradable plastic can be synergistically improved.

To regenerate water used in a water jet method into water equivalent to first class industrial water.SOLUTION: The method for treating the used water of the water jet includes a separation step of separating the used water into supernatant water and a flocculate and a step of dehydrating the flocculate to discharge the flocculate as a dehydrated cake. A dehydration step of returning filtered water to supernatant water, a first neutralization step of adding an acid to the supernatant water to neutralize the supernatant water, a first filter passing step of passing the supernatant water through a first filter (palm fiber filter) capable of adsorbing flocs, a second filter passing step of passing the supernatant water through a second filter (cloth filter) capable of rough filtration, an organic matter removing filter passing step of circulating the supernatant water through an organic matter removing filter (activated carbon filter) capable of removing organic matter, and a second neutralization step of adding carbon dioxide gas to neutralize the supernatant water; And a third filter passing step of passing through a third filter (hollow fiber filter) capable of microfiltration.SELECTED DRAWING: Figure 1

The present invention relates to the technical field of fresh-keeping films, and discloses a biodegradable and environment-friendly food fresh-keeping film and a manufacturing method thereof. This kind of food fresh-keeping film uses polybutylene adipate / terephthalate as the base material, and polylactic acid composite and biological antibacterial agent as auxiliary materials. It is made through processes of mixing, extrusion, and blown film. The polylactic acid composite is a graft product of palm fiber and polylactic acid. The reinforcing effect of the palm fiber can be efficiently exerted to achieve the transfer and diffusion of stress loads, thereby effectively improving the mechanical properties of the fresh-keeping film. The biological antibacterial agent can participate in subsequent expansion reactions and thus enter the matrix of the fresh-keeping film, making the structure of the fresh-keeping film denser and the porosity lower, thereby preventing oxygen from entering and causing food spoilage. In addition, it can also effectively extend the retention time of the natural antibacterial agent caffeic acid in the fresh-keeping film, ensuring the antibacterial persistence of the fresh-keeping film.

The utility model discloses a river self-purification structure which comprises an upstream fish nest purification block used for purifying water and providing an ecological environment for aquatic animals; the ecological planting frames are filled with microporous ceramics, gravels and palm fiber mats to achieve water purification, the ecological planting frames form a stepped structure, and the downstream sightseeing fish nest purification block is used for purifying water, providing a habitat for aquatic animals and protecting a downstream riverbed; and the geotechnical cloth is used for preventing bottom silt from being scoured. The protection bed structure with the purification function is constructed, the ceramic structure, the wooden planting frame and the like which are good in ecology are adopted, the overall structure is ecological, an inhabiting environment can be provided for aquatic animals, growth of aquatic organisms and vegetation is not affected, the stepped ecological planting frame is adopted, on one hand, local water power can be improved, and on the other hand, the ecological planting frame is not damaged; on the other hand, combination of vegetation and the filler can be enhanced, the pollutant removal capacity is improved, and the river self-purification capacity is improved.

The invention provides a preparation method of a long palm fiber reinforced bio-based composite material, which comprises the following steps: twisting surface-modified palm fibers to form a surface-modified palm fiber string, and coating the surface-modified palm fiber string with high-fluidity bio-based polypropylene through a simple method to obtain the long palm fiber reinforced bio-based composite material. The preparation method comprises the following steps: preparing long palm fiber particles from palm fibers, preparing bio-based polypropylene coated long palm fiber particles, kneading and tabletting the bio-based polypropylene coated long palm fiber particles, bio-based polyethylene, a compatilizer, a filler and the like, and preparing the bio-based composite material. The problems that fluffy long plant fibers are difficult to discharge in a double-screw extruder, prone to caking and uneven in dispersion after being directly added and blended are solved, meanwhile, surface treatment is carried out on palm fibers, the interfacial compatibility of the palm fibers and the bio-based polyolefin material is enhanced, the lengths of the palm fibers in the bio-based polyolefin composite material are basically unchanged before and after processing, and the mechanical properties of the palm fibers are improved. Therefore, the performance of the bio-based composite material is improved.

The invention discloses an EVA photovoltaic adhesive film with high shrinkage resistance. The EVA photovoltaic adhesive film is prepared from the following raw materials in parts by weight: 90-95 parts of EVA particles, 5-10 parts of an anti-shrinkage agent, 1-3 parts of a crosslinking composition and 1.5-4 parts of an auxiliary agent. According to the invention, the poly (trimethylene terephthalate) fibers are introduced as the anti-shrinking agent, so that the prepared photovoltaic adhesive film is low in shrinkage rate, is applied to the photovoltaic field, and is good in aging resistance. The combination of the poly (1, 3-propylene glycol terephthalate) fibers and the palm fibers is adopted as the anti-shrinking agent, so that the shrinkage rate of the EVA adhesive film is further reduced, the tensile strength and the elongation at break are also maintained to be better, and the use performance requirements of the EVA photovoltaic adhesive film can be met.

The application relates to the technical field of composite materials, and discloses a preparation method of palm fiber powder-polyester composite master batch and application of the palm fiber powder-polyester composite master batch in a papermaking forming net. The preparation method comprises the following steps: mixing polyester, maleic anhydride grafted polyester and modified palm fiber powder, and extruding and granulating to obtain the palm fiber powder-polyester composite master batch; and the preparation process of the modified palm fiber powder comprises the following steps: (1) silane coupling agent hydrolysis: mixing a silane coupling agent and water to obtain a hydrolysis solution; (2) modification: spraying the hydrolysis solution into palm fiber powder treated by lye, stirring, and heating and reacting to obtain the modified palm fiber powder. The obtained palm fiber powder-polyester composite master batch has good mechanical properties. The papermaking forming net prepared by using the palm fiber powder-polyester composite master batch has high strength, good toughness, is more wear-resistant, and has a longer service life.

The invention provides a comprehensive ecological restoration method for a reservoir hydro-fluctuation belt, and belongs to the technical field of ecological management engineering. In the method, a groove with a specific trend is dug between the highest water level and the lowest water level of an upstream reservoir bank of a reservoir in a reservoir area low-water-level operation period, a waterproof film is laid and a water-absorbent resin material is arranged in the groove after the interior of the groove is compacted, on the basis, gravels or pebbles are laid as a substrate layer, and a water-permeable non-woven fabric is additionally arranged; then, the gabions are erected on the sides, close to water, of the grooves, and the gabions are filled with broken stones and ecological concrete; a water storage foundation trench is formed in the top of the trench between the gabion frames, a seed bag is placed, soil is covered above the seed bag, and an artificial spawning bed is formed; an arc-shaped guide plate is arranged on the upstream of an artificial spawning bed to disperse strong water flow to form a slow flow area, and degradable palm fiber or PE aquatic plants are fixed around the spawning bed to form an artificial fish nest. By applying the method, a good treatment effect can be achieved on the water-level-fluctuating zone of the reservoir, a favorable environment can be provided for fish school reproduction, and the method has outstanding technical advantages.

The present invention provides a flame-retardant fiber, its preparation method, and application, belonging to the technical field of flame-retardant fibers. A flame retardant is produced by reacting a vitamin composition with phosphoric acid and urea. This is then grafted onto acid-treated and oxidized palm fiber to produce a flame-retardant natural fiber. The fiber is then surface-modified with polydopamine, added to a Mg-doped silicon / aluminum mixed solution, and ammonia is added dropwise. The mixture is stirred and uniformly mixed, the solvent evaporated, washed, and dried to produce the flame-retardant fiber. The flame-retardant fiber produced by the present invention exhibits low smoke generation, is non-melting and non-shrinking, and retains its original shape after combustion. It also exhibits advantages such as moisture absorption and breathability, easy dyeing, and excellent wearing comfort. It also exhibits excellent mechanical properties, flame retardancy, and high-temperature resistance, and has broad application prospects.

The utility model discloses a kind of coconut palm fiber walking mats of planting green plants, including coconut palm pad body and coconut palm rope, coconut palm rope surface is fixed with coconut palm rope, coconut palm rope includes warp rope and weft rope, warp rope and weft rope are longitudinally and transversely interlaced and are arranged in coconut palm pad body surface, and green plant is planted in the gap of coconut palm pad body.The utility model is provided with brown pad body and green plant, coconut palm fiber pad is laid on mountain path, is made of natural coconut fruit extraction fiber, is non-toxic and harmless, and will naturally corrode after durability, return to soil, naturally restore without recycling or removing, green plant is planted in the gap of coconut palm pad body, green plant can naturally grow in the natural substrate in pad body, form stable vegetation cover layer, harmonious with surrounding environment, no sense of discomfort, can create natural landscape effect, prevent silt loss simultaneously, and damaged mountain path is repaired, with high environmental protection value.