57results about How to "Will not cause white pollution" patented technology

The invention discloses a paper straw with a 90-degree elbow. The straw is formed by spirally overlapping and forming a paper strip body and cutting both ends, one end of the straw is uniformly pressed with 8-12 annular grooves, the paper strip body is composed of a first paper layer, a second paper layer and a third paper layer, it is ensured that the straw is not softened during use, a pluralityof the annular grooves with certain spacing are formed so that the straw fully bends to 90 degrees, the inner diameter of a straw bending zone is not significantly reduced, and the straw can be fullydegraded after use, do not cause white pollution, have low pressure on the environment, and can effectively replace plastic straws used in the market.

The invention discloses low-specific-gravity stone paper relating to synthetic paper. The low-specific-gravity stone paper comprises a base paper layer and a coating layer, wherein the coating layer is coated on the base paper layer; the base paper layer comprises 15-30 parts by weight of synthetic resin and 70-85 parts by weight of mixing material, wherein the synthetic resin is polylactic acid, EVA (ethylene vinyl acetate copolymer), PP (polypropylene), PE (poly ehtylene) or a mixture of any two of the polylactic acid, the EVA, the PP and the PE; the mixing material is a hollow glass ball, coal ash or the mixture of the hollow glass ball and the coal ash; and the coating layer comprises 20-40 parts by weight of acrylic resin, 20-40 parts by weight of lithopone and 30-50 parts by weight of deionized water. The low-specific-gravity stone paper has the following benefits: the mixing material is the hollow glass ball or coal ash so that the mixing material has low specific gravity and good dispersity; the lithopone has good covering power, thus the weight of the paper is convenient to reduce, the paper quality is improved, and the manufacturing cost is reduced.

The invention relates to a polyvinyl alcohol full-biodegradation film having water resistance and a preparation method thereof. A technical problem that an existing product is toxic, is not environmentally friendly and is separated out easily is solved. The polyvinyl alcohol full-biodegradation film comprises, by weight parts, 100 parts of polyvinyl alcohol, 0.1-1 part of crosslinking agent, 1-3 parts of lubricant, 10-25 parts of small molecule plasticizer, 10-20 parts of macromolecular plasticizer, 0-3 parts of sour removal agent and 1-5 parts of heat stabilizer. The invention provides the method for preparing the polyvinyl alcohol full-biodegradation film. The method can be used for the field of preparation of full-biodegradation films.

The invention relates to a biodegradable composite prepreg cloth, and a preparation method and a device for the same. The composite prepreg cloth comprises a modified polylactic acid (PLA) resin accounting for 40-70 wt% of the composite prepreg and natural fiber. The preparation method comprises the following steps: conducting a continuous drying treatment on natural fiber; immersing the fiber with molten modified PLA; coating the modified PLA on the surface of the natural fiber; and rolling, cooling and winding to obtain the prepreg cloth. The device comprises an untwisting machine, an arrangement warping device, a direction control device, a friction roll, a tenslator, a film extruder, a gum dipping cooling device, and a winding device. Compared with the prior art, the invention has the advantages of large fiber draw ratio, obvious PLA enhancement effect, small wear of the extruder screw, simple process, energy saving and environment-friendliness.

The invention provides a stone paper and a processing method thereof, and relates to synthetic papers and a manufacture technology thereof. The stone paper consists of a base paper layer and a coating layer, wherein the coating layer is coated on the base paper layer; the base paper layer consists of 15-30 parts by weight of organic component and 70-85 parts by weight of inorganic component, the organic component is polylactic acid; and the inorganic component comprises light calcium carbonate and lithopone. The processing method of the stone paper comprises the steps of: thermally drying the light calcium carbonate and the lithopone and evenly stirring, mixing with the organic component and evenly stirring, treating by means of banburying and kneading, and pelleting in pelleting equipment; extruding by a calendar to obtain a base paper layer, and treating by corona; and coating a coating material on the surface of the base paper layer. The stone paper is environment-friendly, good in flexibility, good in folding resistance and tearing resistance, and suitable for the common ink, thereby being capable of being used as the paper for the culture, the food, the sanitation, the notebook, the textbook and the printing.

The invention belongs to the field of photovoltaic agriculture and medicinal herb plantation and relates to a method for bag-cultivating radix tetrastigme medicinal herbs under solar photovoltaic panels without greenhouses or tillage. On the basis of the characteristics that radix tetrastigme loves shade and is resistant to drought and cold, specially-made cultivation bags and cultivation mediums special for radix tetrastigme are adopted, and medicinal root tubers of radix tetrastigme are planted without greenhouses or tillage in shady and cool space under the solar photovoltaic panels. The radix tetrastigme medicinal herbs with high added value are bag-cultivated under the solar photovoltaic panels, greenhouses do not need to be set up, tillage is avoided, labor is saved for daily farming management, digging can be performed easily, and the root tubers of radix tetrastigme cannot be damaged; not only is the problem that greenhouse construction and tillage are not suitable for a ground centralized photovoltaic power station solved, but also continuous crop rotation and improvement of the ecological environment of a photovoltaic power generation site can be achieved; the comprehensive utilization rate of photovoltaic power generation project land is greatly increased, sunlight and land resources can be utilized stereoscopically and efficiently, dual good benefits can be obtained from photovoltaic power generation and medicinal herb plantation, and an ideal photovoltaic agriculture plantation mode is achieved.

The invention provides a natural fiber filled polyethylene composite material and a preparation method thereof. The natural fiber filled polyethylene composite material comprises the following components by weight percent: 20-50% of high density polyethylene, 40-70% of natural fiber powder, 1-6% of fatty acid polyethylenimine condensation product, 1-15% of inorganic mineral filler and 1-6% of lubricating agent. The preparation method comprises the following steps: adding weighed natural fiber powder particles into a high-speed mixer, and stirring for 20-30 minutes at the speed of 2000r/min (revolutions per minute); adding other components in proportion, mutually mixing and stirring for 10-20 minutes, and then adding the mixture into a homodromous and parallel two-screw extruder; and pelleting to obtain the particles of the natural fiber filled polyethylene composite material. By using the preparation method, the defects that a common WPC (wood plastic composite) material is poor in mechanical property and poor in humidity resistance are solved.

The invention relates to an environment protection wet cloth and the manufacture method. The cloth is made from spinning stick non-woven fabrics that is produced from poly lactic acid resin. The method includes the following steps: drying poly lactic acid resin raw material to water content under 50ppm, heating, extruding and melting, removing impurity; taking spinning under 250deg.C, cooling to form poly lactic acid original filament, taking flow drafting to the filament to form poly lactic acid filament and spreading to net, solidifying to form non-woven fabrics, and cutting and dipping. The product has wide raw material resources, soft handle, etc. The process has low energy consumption and almost no waste water and waste gas.

The invention discloses a completely degradable high shock resistance composite which comprises the following components in parts by weight: 20-80 parts of natural fiber and 20-80 parts of poly(butyleneadipate-co-terephthalate) (PBAT) fiber. The invention further discloses a preparation method and an application of the completely degradable high shock resistance composite. The composite adopts the PBAT fiber as a base material, so that the composite has very excellent shock resistance and is not easy to break. In addition, a reinforcing phase and a base body of the composite are degradable materials, so that the composite is less harmful to an environment, cannot result in white pollution, and meets a requirement of sustainable development.

The invention discloses a degradable compound fertilizer slow-release plastic mulching film and a preparation method thereof. The preparation method for the mulching film comprises the following steps: preparing compound fertilizer slow-release microparticles from 6 to 10 parts of a compound fertilizer, 6 to 10 parts of nanometer calcium carbonate and 10 to 15 parts of beta-cyclodextrin; adding 70-100 parts of polylactic acid, 20-40 parts of polyvinyl alcohol, 0.5-1 part of a lubricant, 2-5 parts of a plasticizer and 40-70 parts of deionized water into a reaction kettle and carrying out uniform mixing under stirring at a certain temperature; then adding the compound fertilizer slow-release microparticles and carrying out uniform mixing to obtain mother liquid; and carrying out casting to form the film. The plastic mulching film prepared in the invention contains the compound fertilizer slow-release microparticles, so the compound fertilizer is released in the use of the film and is long in a slow release period; the plastic mulching film is degradable and does not cause pollution; and the preparation method is simple in production process and suitable for industrial production.

The invention provides a preparation method of antibacterial type degradable nontoxic disposable tableware. The disposable tableware is mainly prepared through the following steps: uniformly mixing starch, urea-formaldehyde resin, glycerol and edible type sodium carboxymethylcellulose in a certain proportion at a high speed, and then carrying out compression moulding forming to prepare a tableware shell; then spraying a layer of film-coated agent which is prepared from chitosan/polyvinyl alcohol on the surface of the prepared tableware shell, and drying. The preparation method provided by the invention has the advantages of simple process, low cost and high efficiency. According to the invention, most of the disposable tableware can be decomposed by microbes; the chitosan is uniformly dispersed in the polyvinyl alcohol in a particle form; the prepared disposable tableware shows excellent antibacterial property on staphylococcus aureus and escherichia coli, so that the safety of outdoor usage is enhanced.

The invention relates to a multifunctional ecological plastic film compound fertilizer and a preparation method and an application method thereof, relating to the technical fields of farm and sideline products deep processing, novel environmental fertilizer researching, comprehensive utilization of resources, ecological environment engineering, chemical engineering and technology, water and soil conservation, desertification prevention and control and the like. The invention is characterized by putting organic wheat straws which has the length of 2 to 4cm and the weight percentage of 70 to 80 percent, and inorganic nitrogen phosphorus fertilizer which has the weight percentage of 20 to 30 percent into a 20-40m<3> cooking and boiling retort, inputting water vapor, cooking and boiling for 3 to 5 hours under high temperature and high pressure; filter pressing and extracting fertilizer solution; evaporating and concentrating; modifying and compounding; and sponging drying and preparing a mahogany power product which is the multifunctional ecological plastic film compound fertilizer. The product has the advantages of replenishing soil nutrient, fostering soil productivity, conserving water and soil, saving water and holing water, improving sandlot, fixing the high content of shifting sand, and being capable of being used for national desertification land management, fostering the soil in industrial and mining reclaiming area, ecological rebuilding, water and soil conservation and improvement in river bench land, pejorative grassland vegetation restoration and fertilizer application and water saving in ordinary dry farms.

The invention relates to a gypsum-based self-leveling material as well as an application and an application method thereof in artware. The gypsum-based self-leveling material is prepared from the following components in parts by weight: 90-110 parts of water, 141-159 parts of semi-hydrated gypsum, 110-125 parts of quartz sand, 10-25 parts of coarse whiting powder, 6-24 parts of general portland cement, 1-8 parts of latex powder, 0.3-0.9 parts of a water reducing agent, 0.1-0.5 parts of cellulose ether, 0.1-0.2 parts of a defoaming agent and 0.1-0.2 parts of a retarder. The gypsum-based self-leveling material can be used for manufacturing artware such as chess, pen containers, flowerpots and cartoon figure models, and the manufactured artware is smooth and fine in surface and not prone to powder falling. Compared with the prior art, the problems that a traditional gypsum-based material is poor in slurry liquidity, low in strength of a hardened finished product, large in number of surface air holes, prone to powder falling and the like are solved, and the prepared artware is smooth and mild in surface, glossy, high in strength and good in abrasion resistance.

The invention discloses a kitchen meal box environmental-friendly packaging device for take-out merchant order receiving, and relates to the technical field of catering. The kitchen meal box environmental-friendly packaging device comprises a packaging table. A packaging opening is formed in the top of the packaging table, and a storage box is arranged on the left side of the bottom of the packaging table. According to the kitchen meal box environmental-friendly packaging device for take-out merchant order receiving, the main purpose of the mentioned packaging device is to omit the steps of manual operation of opening a plastic bag and placing a packaging box to save certain amount of packaging time; the packaging device adopts paper bags instead of plastic bags to package, on the one hand, the bottom can be better shaped, and thus the packaging box is not prone to being shake and food leakage is avoided; on the other hand, the kitchen meal box environmental-friendly packaging device cannot cause white pollution after using, and is environmentally friendlier; and the main function of a packaging board is to support the packaging bag and place the packaging box, design of the lengthand width of the packaging board makes the packaging board only possible to place two rectangular packaging boxes with equal sizes on the bottom, and thus stability of multiple packaging boxes is increased while the packaging bags are fully utilized.

The invention discloses degradable environmentally friendly antibacterial tableware. The degradable environmentally friendly antibacterial tableware comprises the following raw materials in parts by weight: 25-40 parts of banana tree fibers, 40-50 parts of starch, 5-10 parts of polyacrylate emulsion, 5-8 parts of an oil-proofing agent, 3-6 parts of a waterproof agent and 0.1-0.2 part of nano-silver. Banana trees can be used as main raw materials, the cost is low, the raw materials are extensive, can be biodegradable completely, is environmentally friendly, and can be processed into products such as disposable tableware and specific packaging materials, and the degradable environmentally friendly antibacterial tableware cannot cause white pollution like foam take-out containers or plastic tableware. Nano-silver is added in a making process and is used as an antibacterial agent of the tableware, the antibacterial effect is quite good, and the food storage time can be prolonged effectively.

The invention discloses a method for preparing a degradable garbage bag with good mechanical performance. The prepared garbage bag has good mechanical and degradation properties, white pollution cannot be caused, polyethylene is not used, degradation products can be used as fertilizers to enhance the soil vitality, and friendly environment and sustainability are achieved; nano calcium carbonate ismodified through methacrylate, the agglomeration degree of the nano calcium carbonate is improved, consistency of the nano calcium carbonate with polylactic acid is improved, interface bonding forceof the nano calcium carbonate is enhanced, even distribution of the nano calcium carbonate is promoted, stress concentration points are reduced, and the mechanical performance of the garbage bag is improved; and meanwhile, a chitin fiber and a coupling agent are used for modifying lotus leaves, not only can the interface action between the lotus leaves and a substrate be improved, but also degradation performance of the garbage bag is improved, and thus the garbage bag has the good mechanical performance, and is environmentally friendly and easy to degrade.

A green and environment-friendly wood-plastic composite material is composed of the following raw materials in parts by weight: 15 to 35 parts of plastic particles, 3 to 4 parts of functional auxiliary agent, 6 to 9 parts of filling material, 0.4 to 0.8 part of crosslinking agent, 5 to 7 parts of copper powder, 12 to 18 parts of bamboo powder, 8 to 12 parts of silicon carbide, 7 to 11 parts of low shrinkage additive, 8 to 14 parts of lubricant, 8 to 12 parts of silicone rubber, 6 to 12 parts of porcelainized powder, 15 to 35 parts of bamboo chip, 12 to 22 parts of wheat straw, and 10 to 18 parts of polyethylene. The provided green and environment-friendly wood-plastic composite material has the advantages of waterproof and corrosion performance, long service life, and degradable property, will not generate plastic pollution, and is a real green and environment-friendly product.

The invention discloses a preparation method for a biodegradable mulching film for agricultural crops. The preparation method comprises the following steps of: adding 100 parts by mass of starch into a reaction kettle filled with 500 to 600 parts by mass of water; heating the mixture to 70 to 85 DEG C; reacting for 0.5 to 1 hour; cooling the reactant to room temperature to obtain a starch solution; adding a pH adjusting agent into the starch solution to adjust the pH to be 6 to 8; heating the solution to 60 to 70 DEG C; adding 5 to 12 parts by mass of cross-linking agent; after 20 to 40 minutes, adding 25 to 35 parts by mass of polyvinyl alcohol for reacting 3 to 6.5 hours; cooling the solution to room temperature to obtain a reaction solution; adding 6 to 10 parts by mass of active agent into the reaction solution; after stirring the solution for 0.5 to.15 hours, filtering and drying the final solution to obtain reaction particles; and blowing the reaction particles to form the mulching film on a film blowing machine. The preparation method has the beneficial effects that the raw materials for preparing the mulching film are low in cost and wide in source; the mulching film can be degraded naturally; and the degraded decomposition products contain potassium which can meet the requirement on the growth of the agricultural crops.

The invention discloses lightweight stone paper and relates to synthetic paper. The lightweight stone paper is composed of a base paper layer and a coating layer; the coating layer is coated on the base paper layer; the base paper layer consists of the following components by weight part: 15-30 parts of synthetic resin and 70-85 parts of mixed materials. The synthetic resin is polylactic acid, or EVA (ethylene vinyl acetate), or PP (polypropylene) or PE (polyethylene) or combination of any two of polylactic acid, EVA, PP or PE; the mixed material is sawdust, or bamboo chips or combination of sawdust and bamboo chips; the ingredient of the coating layer comprises the following ingredients by weight part: 20-40 parts of acrylic resin, 20-40 parts of lithopone and 30-50 parts of deionized water. The lightweight stone paper has the beneficial effects that the mixed material is light in weight and good in dispersibility because the mixed material is sawdust, or bamboo chips or the combination of the saw dust and the bamboo chips, and the lithopone has good covering property, thereby conveniently reducing the weight of the paper, improving the quality of the paper and reducing the manufacture cost.

The invention provides a rotational molded culturing float ball and a production method thereof. The rotational molded culturing float ball comprises a ball body, wherein the ball body is a hollow ball, the outer wall of the ball body is provided with a plurality of rope holes used for rope threading; an inflation port is provided with a gas core component, the outer portion of the inflation portis provided with an external coating layer completely coating the gas core component, and the external coating layer is in seamless connection with the ball body; the ball body is made from polyethylene, and compared with the prior art, photo-oxidation, thermal oxidation and ozone decomposition of the polyethylene are liable to happen, so that the polyethylene has a recycle and recovery function,has very far-reaching value, does not cause white pollution of the ocean, is processed and molded easily, and is soft, tough, lighter than water, non-toxic and light; the outer portion of the inflation port is provided with the outer coating layer completely coating the gas core component, and the outer coating layer and the ball body are integrated, so that the float ball of the structure does not leak air easily and has a long service life.

The invention belongs to the technical field of polymer modification, and relates to a composite material prepreg tape, and a preparation method and a use thereof. The composite material prepreg is prepared by using natural fibers, and PBAT resin or modified PBAT resin; and 0.20-1.01kg of the PBAT resin or modified PBAT resin is infiltrated on every square meter of the natural fibers. Compared with the prior art, the preparation method has the following advantages: the prepared composite material has an excellent impact resistance and is difficult to break; and the complete impregnation of the resin by the natural fibers can be guaranteed, and few defects and high mechanical strength of the above obtained product can be guaranteed in the product preparation process.

The invention discloses a preparation method of a biomass antibacterial plastic material. The preparation method is characterized by comprising the following steps: S1, preparation of a 2,5-furandicarboxylic acid/dihydroxyl-terminated polylactic acid polycondensate; S2, preparation of a 2-vinyl furan/5-allyl-3-methoxy methyl salicylate/probenazole/vinyl triethoxy silane copolymer; S3, material forming. The invention also provides the biomass antibacterial plastic material prepared by the preparation method of the biomass antibacterial plastic material. The biomass antibacterial plastic material is good in comprehensive performance and performance stability, remarkable in antibacterial effect, excellent in mechanical property, durability and aging resistance, and safe and environment-friendly to use.

The invention discloses a reusable environment-friendly intelligent express box, and belongs to the technical field of logistics transportation equipment. The reusable environment-friendly intelligent express box comprises an EPP outer box body, a goods fixing net is arranged in the EPP outer box body, box opening buttons are arranged on a panel of the EPP outer box body, the box opening buttons are symmetrically arranged on the two sides of the panel of the EPP outer box body, a TSA lock and an electronic lock are arranged between the box opening buttons, an express waybill electronic ink screen located on the panel of the EPP outer box body is arranged below the box opening buttons, an electric quantity indicating lamp is arranged on one side of the express waybill electronic ink screen, and a delivery button, a return button and a box body two-dimensional code are sequentially arranged below the electric quantity indicating lamp. According to the reusable environment-friendly intelligent express box, a foaming polypropylene material adopted by the box body is a high-crystallization type polymer/gas composite material with excellent performance, the foaming polypropylene material has the characteristics of high strength and light weight, can be recycled and naturally degraded, and cannot cause white pollution.