12 results about "Plumbago" patented technology

The invention discloses a dense mycelium-based high-efficiency and durable sound-insulating composite material and a rapid preparation method thereof, relating to the field of biological building materials. The method comprises the following steps: uniformly mixing straw powder, corn cob powder, sawdust powder, bran powder, soybean meal powder and an alkaline mixed additive, adding aerogel particles, graphene nanosheets and water, and stirring to form a culture medium; simultaneously and uniformly inoculating oyster mushroom species or ganoderma fungus species on the culture medium by multi-point injection, with the injection depth being the same; then controlling the temperature to 30-35°C and the humidity to 65%-75%, heating the culture medium by microwave heating under ventilation conditions, and obtaining a culture system after the mycelium completely covers the culture medium; and pressing the culture system into shape under a pressure of 2-5 MPa, and then vacuum drying the culture system to control the total water content to below 4%, thereby obtaining a dense mycelium-based high-efficiency and durable sound-insulating composite material, thereby improving production efficiency and material performance, and avoiding chemical pollution.

A plateau railway engineering disturbance key protection plant protection technology is characterized by specifically comprising the following steps that forest land areas needing to be classified are selected, and needed data are obtained; performing field investigation on the key protected plants, and recording specific data; setting water and soil conservation measures; placing a water-soluble graphene plant growth promoter; placing an insect repellent; hanging a signboard; and setting a protection range. According to the invention, the water-soluble graphene plant growth agent, the insect repellent and water and soil conservation measures are combined, so that key protection plants are protected. The method provided by the invention has a remarkable protection effect on key protection plants interfered by engineering in high-altitude areas.

The invention discloses a double-hetero-element co-doped porous carbon material capable of promoting efficient circulation of Fe (III) and Fe (II) of a Fenton system and a preparation method of the double-hetero-element co-doped porous carbon material, and relates to the technical field of water treatment. According to the material, industrial and agricultural wastes such as lignin, water hyacinth leaves, myriophyllum spicatum, camellia seed shells, loofah sponge, bagasse and traditional Chinese medicine residues which are high in carbon content serve as raw materials, a porous carbon material is formed through pyrolysis at high temperature by adding pore-forming agents such as ethylene glycol, and heteroatoms such as boron, sulfur, phosphorus and nitrogen are introduced for co-doping. Wherein boron doping contributes to further improving the graphitization degree and conductivity of the material, and compared with phosphorus doping, due to electronegativity and atomic radius adaptability of sulfur and nitrogen doping, the polarity of the carbon material can be effectively enhanced, electrons in the carbon material can be extracted as active sites, an adsorbed Fe (III) complex is promoted to be reduced to Fe (II), the Fe (III) / Fe (II) cycle efficiency of a Fenton system is accelerated, and the performance of the material is improved. The dosage of the Fe (II) medicament is greatly reduced, and meanwhile, the resource utilization of agricultural wastes can be realized.

The invention provides a preparation method of wormwood mosquito-repellent cloth and coloring liquid used in the preparation method, and belongs to the technical field of cloth dyeing. The preparation method of the wormwood cloth coloring liquid comprises the following steps: crushing wormwood leaves and scandent hop, adding water for soaking, carrying out ultrasonic treatment, and separating to obtain a wormwood mixed water extract and residues; respectively grinding lemon peel, mint leaves, citronella leaves and lavender petals, mixing, mixing with the residues to prepare wormwood mixed essential oil, dissolving the wormwood mixed essential oil in an organic solvent to obtain a mixed solution 1, sequentially adding water, mannosylerythritol lipid, a chitosan solution and graphene, homogenizing, and drying to obtain wormwood mixed essential oil microcapsules; and mixing the wormwood mixed water extract and the wormwood mixed essential oil microcapsules to obtain the wormwood cloth coloring liquid. The wormwood mosquito-repelling cloth prepared from the wormwood cloth coloring liquid can effectively repel mosquitoes and can still keep a high mosquito-repelling rate after being washed with water for multiple times, and soaping fastness and rubbing fastness are both obviously improved.

The invention discloses a formula of a broad-spectrum culture medium adapted to sterile sowing of multiple species of Chinese orchid, and relates to the technical field of plant tissue culture, the broad-spectrum culture medium adopts a 1 / 2MS basic culture medium, the dosage of a macroelement mother solution is halved, and the dosage of ferric salt, microelement and vitamin mother solution is kept unchanged; 10 mg of modified graphene, 1.5 mg to 2.5 mg of 6-benayl aminopurine (6-BA), 0.3 mg to 0.8 mg of naphthylacetic acid (NAA), 0.2 mg to 0.8 mg of zeatin (ZT), 0.05 mg to 0.2 mg of indolebutyric acid (IBA), 1.2 g to 2.2 g of lactoalbumin hydrolysate, 0.6 g to 1.0 g of activated carbon, 22 g to 32 g of saccharose and 5.5 g to 7.5 g of agar are added into every 1 L of the basic culture medium. The pH value of the culture medium is adjusted to 5.2-5.8. By adding the modified graphene into the culture medium, germination of Chinese orchid seeds is effectively promoted. Meanwhile, a complete nutrition system and a root system induction mechanism enhance the growth vigor of the seedlings and improve the survival rate of the seedlings, and meanwhile the universality of the culture medium is remarkably improved through the formula of the culture medium.

This invention belongs to the field of pest control and biomaterial application technology, specifically relating to a termite bait based on cellulose waste and its high-temperature, high-pressure preparation process and application. The bait uses sugarcane bagasse powder and bark powder as the main cellulose matrix, supplemented with glucose, xylose, casein, and granulated sugar as attractants, and incorporates a chitosan-graphene oxide composite nano-insecticide. This bait exhibits high stability in humid environments, is not prone to mold, and maintains its attractant properties and efficacy for a long period. Indoor and buried tests have verified that the prepared bait significantly increases the termite feeding rate and mortality rate compared to the control group, demonstrating a comprehensive advantage of strong attractant properties, slow-release effect, and environmental friendliness.

The invention belongs to the technical field of pest control and biological material application, and particularly relates to a termite trapping and killing bait based on cellulose waste as well as a high-temperature and high-pressure preparation process and application of the termite trapping and killing bait. According to the bait, bagasse powder and bark powder are used as main cellulose matrixes, glucose, xylose, casein and white granulated sugar are used as auxiliary food calling auxiliaries, and a chitosan-graphene oxide composite nano insecticidal preparation is added. The bait is high in stability in a humid environment, not prone to mildewing and capable of keeping food calling performance and pharmacodynamic activity for a long time. Indoor and burying tests prove that the feeding rate and the death rate of the prepared bait for termites are remarkably higher than those of a control group, and the bait has the comprehensive advantages of being high in feeding attraction, slow in release, lasting in effect and environmentally friendly.

The invention relates to the technical field of cultivation and planting of medicinal plants, in particular to a method for cultivating high-chlorogenic-acid-content eucommia ulmoides in saline-alkali soil. The cultivation method comprises the following steps: (1) leveling the ground, removing pebbles, raking soil blocks to be fine, deeply ploughing for 20-30cm, and raking; (2) ridging is conducted, the width of each ridge is 1.0-1.5 m, the height of each ridge is 0.4-0.6 m, and the distance between every two ridges is 1.0-1.5 m; (3) digging planting holes, laying 5-10 kg of straw at the bottom, and uniformly mixing hole soil with an improved material composed of 5-10 kg of organic bacterial fertilizer, 5-10 g of carboxylated graphene oxide powder, 1-5 g of humic acid and 0.1-0.5 kg of compound fertilizer to obtain mixed cultivation soil; (4) transplanting eucommia ulmoides seedlings of 3-5 years old, compacting the eucommia ulmoides seedlings with cultivation soil, and carrying out drip irrigation and watering with root fixing water; (5) after transplanting for 7-10 days, irrigating the roots with an acid-base equilibrium liquid once; topdressing is performed twice from April to August. The method provided by the invention can effectively improve the content of chlorogenic acid in the folium cortex eucommiae.

The application discloses a method for preparing an environment-friendly carbon source by straw bio-fermentation and application, and the environment-friendly carbon source comprises the following raw materials in parts by mass: 40-60 parts of straw, 15-25 parts of special tree branches, 10-16 parts of edible fungus waste fungus bags, 2-4 parts of odor-removing agents, 6-8 parts of zeolites, 6-8 parts of graphite, 2.2-2.6 parts of compound fermentation bacterial liquid and 60-80 parts of water. The application can realize comprehensive development and utilization of crop straw, reduce straw burning phenomenon, has important significance of energy saving and environmental protection, can avoid the problems of pollution to the environment and degradation difficulty caused by the waste fungus bags, improve the utilization rate of the waste, can effectively protect resources, and achieves the purpose of carbon comprehensive.

The invention relates to the technical field of soil improvement, in particular to a forestry soil ecological restoration agent and a preparation method thereof. The repairing agent is prepared from the following raw materials in parts by weight: 20-25 parts of garden waste ferment powder, 8-10 parts of macromolecular water-absorbing fiber hair balls, 1-3 parts of a 5mg / L graphene oxide solution, 5-10 parts of humic acid, 5-10 parts of oyster calcium powder, 5-6 parts of sulfydryl modified nano silicon dioxide and 3-5 parts of a compound microbial preparation. The soil ecological restoration agent provided by the invention can effectively improve the conditions of physical, chemical and biological processes of soil, improve the absorption performance and buffer performance of the soil, eliminate soil obstacle factors, and improve the air permeability and organic matter content of the soil.

The invention discloses a graphene composite anti-freezing agent. The graphene composite anti-freezing agent is prepared by compounding a traditional anti-freezing agent and 3-7mg / L graphene, 30-100 ml of the graphene composite anti-freezing agent is applied to each branch for unbloomed branches of apricot trees in the flower bud stage, 30-100 ml of the graphene composite anti-freezing agent is applied to each branch for bloomed branches of apricot trees in the full-bloom stage, and 30-100 ml of the graphene composite anti-freezing agent is applied to each branch; by adding the graphene solution with proper concentration, the permeability of the traditional antifreezing agent is remarkably enhanced, the uniform distribution of the antifreezing agent in floral organ cells is promoted, the problem that the traditional antifreezing agent only forms a film layer on the surface and cannot penetrate into the cells is avoided, and the effective utilization rate of the antifreezing agent is increased by 15% or above (drug reduction); meanwhile, the activity of superoxide dismutase (SOD) can be improved, active oxygen generated by low-temperature induction is effectively removed, and cell membrane lipid peroxidation is inhibited; the method is suitable for large-scale popularization in mountainous and forest farms, has strong adaptability to environmental conditions such as soil and climate, and is suitable for most apricot producing areas in northern China.