113 results about "Chemical addition" patented technology

The invention provides a method for detecting the content of elements in carbonized resin. The method comprises the steps of resin pretreatment, instrument tuning, standard curve drawing, sample detection and the like. The method comprises the following steps: firstly, transferring a certain amount of dry carbonized resin into a cleaned PFA digestion tank, adding high-purity mixed acid, setting a segmented heating program to start microwave digestion, cooling to room temperature after digestion is completed, adding a proper amount of ultrapure water to dilute a digestion solution, and adding an internal standard solution and a chemical additive to obtain a to-be-detected sample solution; preparing a multi-element mixed standard solution according to the sample element types, adding the standard solution into the sample solution, and measuring the signal intensity ratio R of the to-be-measured element to the internal standard in each solution; and drawing a standard curve by taking the labeling concentration as a horizontal coordinate and R as a vertical coordinate, correcting the standard curve, and detecting the sample to be detected. The method is used for detecting the content of elements in carbonized resin, the carbonized resin is digested through microwaves, and the obtained solution is clear and can be directly subjected to ICP-OES (Inductively Coupled Plasma-Optical Emission Spectrometer) detection.

The invention discloses an intelligent quintuplet cooperative plasma self-purification robot long-term storage system and a self-adaptive disinfection control method. According to the system, cold plasma, ozone, chlorine dioxide, self-generated nitric oxide and a charge self-purification jump effect are fused, and a dynamic self-purification system with an electric field-gas field-chemical field-intelligent field-thermal field five-dimensional synergistic energy field is constructed. The robot adopts a three-section structural layout and a multi-mode self-adaptive propulsion mechanism, environmental parameters are sensed through AI, discharge power and oxidant release are intelligently regulated and controlled, and precise sterilization, toxicity reduction and mildew prevention in a multi-medium environment are achieved. The system can generate various high-energy active species containing. OH, O, NO, ClO, ONOO and the like, chain splitting decomposition and oxidation mineralization are carried out on mold spores, bacterial cells, aflatoxin and the like, the sterilization rate reaches 99.995%, and the toxin degradation rate exceeds 98%. The system has the characteristics of no residue, low energy consumption, long-acting self-maintenance and the like, is suitable for multiple scenes of grain storage, traditional Chinese medicinal materials, cold chains, farmland, public health and the like, and realizes an intelligent, continuous and chemical-additive-free green storage and dynamic purification system.

The invention relates to the technical field of food processing, and discloses a tuna sausage which comprises the following components in parts by weight. The tuna sausage is prepared from, by weight, 40-50 parts of cooked tuna, 15-18 parts of chicken breast, 19-23 parts of chicken thigh, 0.8-1.0 part of edible salt, 0.001-0.003 part of sodium nitrite, 0.3-0.4 part of composite phosphate, 2.5-2.7 parts of erythritol and 8-10 parts of ice water, the prepared tuna sausage is pure in flavor, the flavor is mildly removed through precise matching, and the original delicate flavor of tuna is perfectly reserved. The taste is dominated by meat feeling, and the texture is elastic and juicy and is free of powder texture and dry firewood feeling. The formula is simple, chemical additives are greatly reduced, and the product conforms to the trend of cleaning labels and is a high-quality product with natural flavor, excellent taste and health attribute.

The invention discloses a high-acidity complex flow state multi-parameter on-line monitoring system, an acid mixing vehicle and a method.The system comprises an acid mixing tank, the acid mixing tank is communicated with a powder pipeline, an acid pipeline, a clear water pipeline, a liquid medicine pipeline and a discharge pipeline, and the powder pipeline, the acid pipeline, the clear water pipeline, the liquid medicine pipeline and the discharge pipeline are all provided with monitoring devices; and the monitoring device is electrically connected with the intelligent control system. The device can record the instantaneous quantity and the cumulant quantity of the acid liquor, the clear water and the chemical additive on line in real time, generate an operation curve and a report at the same time, and can monitor the viscosity, the density and the acidity of the prepared acid liquor on line so as to confirm whether the quality of the acid liquor is qualified or not. According to the invention, monitoring data can be archived, later review and tracing are facilitated, manual sampling analysis is not needed, and potential safety hazards are eliminated.

This invention relates to the field of water purification technology, specifically providing a water purification device aimed at solving the problems of low cleaning efficiency, poor cleaning effect, and poor user experience caused by the residue of a small amount of cleaning agent in existing water purification devices. The water purification device of this application includes a reverse osmosis membrane filter element, a cleaning component, a circulation pipe, and a pure water component. The inlet and wastewater ends of the cleaning component and the reverse osmosis membrane filter element are sequentially connected to form a cleaning circuit. The water purification device can drive the cleaning liquid to circulate within the cleaning circuit and discharge the pure water end of the reverse osmosis membrane filter element to the outside of the filter element. By circulating the cleaning liquid within the cleaning circuit to repeatedly flush the reverse osmosis membrane filter element, the cleaning time is effectively shortened, the cleaning effect is improved, and the discharge of pure water containing a small amount of cleaning agent further contributes to achieving zero pollution and zero chemical addition, greatly enhancing the user experience.

The present invention patent application relates to a modular saturation and dissolution system (1) for controlled generation of nanobubbles in fluid, applicable in the fields of water treatment, biotechnology, medicine, and industrial and environmental processes. The present invention comprises a modular structure (2) configured with multiple flow modulation barriers (22), (23) and (24) and microfluidic devices (25A), (25B) and (25C) provided with micromillimetric perforations (P1), (P2) and (P3) and / or grooves (R1), (R2) and (R3), which allow precise control of the generation and distribution of nanobubbles in different stages of the process. The saturation and dissolution system (1) includes a cylindrical casing (7) that houses the nanobubble generation chamber (10) and incorporates a gas introduction and diffusion device (13) having perforated and / or grooved surfaces (16) and (16A), facilitating the uniform dispersion of the gas in the fluid. The present invention promotes greater efficiency in the dissolution of gases, eliminating the need for movable components such as rotors or stators, and the use of chemical additives, providing a versatile and sustainable solution with the flexibility to be applied in a variety of industrial and operational configurations, ensuring greater efficiency in treatment processes and an increase in the contact area in order to optimize gas dissolution rates.

The invention discloses a lactobacillus plantarum LF001, the preservation number of the lactobacillus plantarum LF001 is GDMCC No.67171, and the lactobacillus plantarum LF001 integrates the functions of a high-efficiency fermentation agent and a high-efficiency biological preservative into a whole. According to the method, conventional lactic acid fermentation can be completed, the novel performance of high-yield antibacterial peptide can be achieved, broad-spectrum pathogenic bacteria and putrefying bacteria can be actively and effectively inhibited, the preservative and fresh-keeping effect which can only be achieved by common lactic acid bacteria and chemical preservatives / exogenous bacteriocin in the past can be achieved by using a single LF001 strain, the process is simplified, the cost is reduced, and the method is suitable for industrial production. And real'no chemical addition 'is realized.

This invention discloses a kitten food without palatability enhancers and its preparation method, relating to the field of pet food technology. It comprises the following components: polypeptide chicken meal, soy protein peptides, gluten hydrolysate, lactoferrin, astragalus extract, yam powder, rosemary oil, resveratrol, tributyrate, and rice. By adding substances containing small peptides and plant extracts to the kitten food, this invention provides the body with a large amount of high-quality animal protein without adding any chemically synthesized palatability enhancers, preservatives, or other chemical additives. This effectively promotes the body's decomposition and metabolism of nutrients, promotes the growth of kittens, and also enhances the body's antioxidant capacity and reduces the occurrence of diarrhea.

The invention relates to an energy substrate obtained by steam cracking of a biomass. More specifically, the invention relates to a steam-cracked biomass in the form of dry powder and devoid of any chemical additive, to a method for the production thereof and to the use thereof as a substrate for green chemistry and biotechnological methods such as enzymatic hydrolysis and fermentation.

The present application relates to the field of food technology, and discloses a low-bitterness wolfberry original syrup and a preparation process thereof. The original syrup is prepared from the following raw materials in parts by weight: 80-90 parts of fresh wolfberry fruit, 5-10 parts of germinated fava, 5-10 parts of germinated barley, 0.3-0.6 parts of medium-chain triglyceride, 1.0-2.0 parts of concentrated red date juice, 0.05-0.1 parts of ascorbic acid, 0.02-0.05 parts of citric acid, and 0.01-0.05 parts of saltwort extract. The present application efficiently reduces the bitterness of the wolfberry original syrup through a full natural biological transformation pathway without adding exogenous enzyme preparations or introducing chemical adsorbents, fundamentally avoiding chemical addition and clean label problems, and simultaneously achieving the synchronous transformation of various types of bitter substances in wolfberry. The preparation process of the present application completely retains the heat-sensitive functional factors and fresh fruit aroma of wolfberry, and the nutritional integrity and flavor reduction degree of the product are significantly better than those of similar products on the market.

The invention discloses a preparation method of an antibacterial and mildew-proof coating for the inner wall of a sterile bottle, which comprises the following steps: thoroughly cleaning and disinfecting the sterile bottle through ultrasonic cleaning and high-temperature steam sterilization to ensure that no microbial residue exists in the bottle; activating the inner wall of the bottle by adopting a plasma cleaning machine; then, polylactic acid modified ovalbumin is dissolved in water, a glutamine transaminase cross-linking agent and a chitosan polymer are sequentially added to prepare a modified protein solution, and the mixture not only has excellent biocompatibility and antibacterial performance, but also can effectively prevent bacteria and mould from breeding; filtering the prepared solution, injecting the filtered solution into an activated sterile bottle, uniformly covering the inner wall of the bottle with the solution by using a spin coater, and carrying out curing treatment in a constant-temperature oven to finally form an antibacterial and mildew-proof coating; according to the method, the toxicity problem caused by chemical additives is avoided, meanwhile, the stability and durability of the coating are improved, the service life of the sterile bottle is greatly prolonged, and the protection performance of the sterile bottle is enhanced.

The present invention discloses a shower head system. The system comprises a shower head housing comprising a proximal end and a distal end. The proximal end comprises one or more water inlet apertures and the distal end comprises one or more water outlet apertures. The water inlet apertures are in fluid communication with a water source to receive raw water. The system comprises a shower head conduit in fluid communication with the water inlet apertures and the water outlet apertures. The shower head conduit comprises at least one chemical addition aperture. The system comprises a chemical storage system comprising a chemical reservoir comprising chemical outlet apertures and a chemical conduit. The chemical reservoir is configured to store chemical additive. The chemical conduit is in fluid communication with the chemical outlet apertures and the chemical addition aperture to add chemical additive to the water stream to adjust pH level.

The invention relates to the technical field of food processing and production, in particular to a production method for prolonging the shelf life of hot slaughtered medium-temperature meat, which comprises the following steps: selecting hot slaughtered livestock and poultry meat, treating, soaking a meat blank in a citric acid solution, rinsing after soaking, and draining to obtain a pretreated meat blank; preparing a preservative solution, soaking the pretreated meat blank in the preservative solution, and stirring for multiple times during soaking; after soaking, taking out and draining redundant solution on the surface to obtain a soaked meat blank; adding a pickling material for pickling to obtain a marinated meat blank; cooling the marinated meat blank, keeping the air speed and the relative humidity of a cooling chamber, reducing the central temperature of the meat blank to a target temperature at a certain cooling rate, preparing a semi-finished product, and putting the semi-finished product into a barrier packaging film for sealing treatment to prepare a finished product. The citric acid is used for pretreatment, and the staged temperature control cooling technology is adopted, so that the shelf life is remarkably prolonged, and meanwhile, the safety risk and flavor damage caused by chemical additives are avoided.

The invention discloses a method for co-producing hydrogen-rich synthesis gas and a hard carbon material through biomass transient high-temperature gasification, and belongs to the technical field of biomass resource utilization and electrochemical energy storage materials. The method comprises the following steps: mixing a biomass raw material, a conductive additive and water according to a specific mass ratio, and carrying out ball milling and high-pressure molding to obtain a low-resistivity conductive blank; in a vacuum environment, through primary Joule heating, the green body is transiently heated until gasification is completed, and hydrogen-rich synthesis gas and primary porous carbon are synchronously collected; and mixing and molding the primary porous carbon and a binder, and carrying out secondary Joule heating until carbonization and hole sealing to obtain the hard carbon material. Through precise regulation and control of the two-step Joule heating process, synergistic efficient conversion of the biomass to the hydrogen-rich synthesis gas and the hard carbon material is achieved, and the method has the advantages of being high in reaction rate, high in energy efficiency, free of chemical additives, high in product value and the like and is suitable for large-scale industrial application.

Disclosed herein are cyclic polymers comprising dicyclopentadiene (DCPD) and dicyclopentadiene derivatives without cross-linking that can act as chemical additives to enhance the application and texture of cosmetic compositions.

The invention relates to a lithocarpus litseifolius compound plant beverage and a preparation method thereof, and belongs to the technical field of health drinks, and the lithocarpus litseifolius compound plant beverage comprises the following raw materials in parts by weight: lithocarpus litseifolius, eucommia ulmoides leaves, mulberry leaves, Chinese wolfberry fruits, haws, lotus leaves, emblic leafflower fruits, momordica grosvenori, dendrobe and gynostemma pentaphyllum. The preparation method comprises the following steps: grouping raw materials according to physical properties, performing low-temperature dynamic countercurrent extraction on heat-sensitive raw materials such as leaves, and performing stepped variable-temperature enzymolysis-hot extraction on compact raw materials such as fruit stems; after the two groups of extracting solutions are compounded in proportion, flavor self-blending is realized through low-temperature vacuum concentration; and performing pure physical refining and stabilization through ceramic membrane filtration and ultrahigh pressure homogenization, and finally sterilizing and filling. Through scientific compounding, refined segmented extraction and synergistic interaction, multiple health-care functions, excellent sensory quality and long-term stability under the condition of zero chemical addition are realized, and the product is all natural and suitable for industrial production.

This invention provides a hot water washing system for oily sludge that integrates a twin-helix mixer and a disc centrifuge. The system includes a feeding unit, a twin-helix mixing unit, and a disc centrifugal separation unit. The feeding unit feeds material into the twin-helix mixing unit. The inlet of the disc centrifugal separation unit is connected to the outlet of the twin-helix mixing unit via a feed pump. The disc centrifugal separation unit centrifuges and separates the oily sludge treated by the twin-helix mixing unit. The twin-helix mixing unit achieves efficient convective mixing of oily sludge with hot water and chemicals. The disc centrifugal separation unit enables rapid separation of the oil-water-sludge three phases. Simultaneously, a temperature control unit can regulate the material temperature within the mixing unit in real time, and a chemical addition unit precisely proportions the cleaning agents. This highly integrated system improves mixing uniformity by 20%-30% and separation efficiency by 15%-25% compared to conventional equipment, making it suitable for the efficient and harmless treatment of various types of industrial oily sludge.

This invention relates to a method for improving the quality of quick-frozen fresh-cut onions, belonging to the field of fruit and vegetable freezing processing technology. The method includes the following steps: immersing fresh-cut onions in a natural color-protecting antifreeze agent, followed by ultrasonic field impregnation, pulsed electric field pretreatment, ultra-low temperature assisted quick-freezing, ultra-low temperature quick-freezing, and low-temperature ultrasonic thawing. This invention solves the problems of excessive juice loss, faded color, softened texture, and severe flavor loss after thawing of traditionally frozen fresh-cut onions by sequentially subjecting the fresh-cut onions soaked in the natural color-protecting antifreeze agent to ultrasonic field impregnation, pulsed electric field, ultra-low temperature quick-freezing, and ultrasonic thawing. Through the synergistic effect of each step, the juice loss rate of the thawed fresh-cut onions is reduced to below 15%, the redness (a* value) retention rate is increased to over 75%, the hardness is restored to 60% of the fresh-cut sample, the flavor substance retention rate reaches 85%, and there are no chemical additive residues, ensuring high safety.

This utility model relates to a water tank and dishwasher with descaling function, comprising a water tank body, an electronic magnesium rod, a water quality sensor, and a controller. The controller is electrically connected to the electronic magnesium rod and the water quality sensor. The electronic magnesium rod is inserted into the water tank body. The water quality sensor is used to identify the water hardness of the water stored in the water tank body. The electronic magnesium rod operates according to the water hardness identified by the water quality sensor. Water tanks using electronic magnesium rods contain no chemical additives, the electronic magnesium rod can be used for a long time without the need to add water softening salt, is environmentally friendly, and avoids chemical consumables remaining in tableware. Furthermore, it can also provide antibacterial assistance; the magnesium ions released during operation not only prevent scale buildup but also destroy the cell membranes of some bacteria, such as E. coli. In addition, the electronic magnesium rod has a lifespan of 2-3 years.

The present application belongs to the technical field of animal feed, and discloses a feed based on fermented raw materials and a preparation method thereof. The feed is made of main fermented raw materials, nutritional adjuvants, fermentation agents and functional additives. The preparation method comprises the following steps: S1, raw material pretreatment and mixing; S2, inoculation and fermentation; and S3, post-treatment and finished product. The present application has the following beneficial effects: dual improvement of nutrition and function, deep biological transformation makes the feed more digestible, and endogenously generates various active substances, promotes growth and improves immunity; stable and controllable process, clear strain combination and two-stage fermentation parameters ensure the stability and repeatability of product quality, suitable for large-scale production; safe and environmentally friendly, no chemical addition in the production process, detoxification and improvement are achieved through biological fermentation, and the product is green and safe; wide application, through adjusting the main material ratio and adjuvants, a series of products suitable for pigs, poultry, ruminants and aquatic animals can be derived, and the adaptability is strong.

A variety of methods and systems are disclosed, including, in one example, a method of direct air capture including: introducing an air stream comprising carbon dioxide into gas-liquid contactor; contacting the air stream with a treatment fluid comprising a surfactant, wherein the carbon dioxide is at least partially soluble in the treatment fluid, and wherein the carbon dioxide reacts with the treatment fluid to form a reaction product; performing an ion exchange reaction between the reaction product and a base in the presence of the surfactant to form an ion exchange product; and precipitating the ion exchange product to form a precipitate.

The invention discloses an inorganic plastic oxygen composite material and application thereof in a pet environment disinfection and deodorization system. The inorganic plastic oxygen composite material is prepared from the following components in parts by mass through a compounding process: an inorganic internal peroxide bridge composite compound; an inorganic mediated catalytic material; material balance and a stable system; according to the technical scheme, the defects of a traditional pet disinfection and deodorization product are thoroughly overcome, the product does not contain irritating chemical additives, the lavender essential oil is matched with a mild formula, residues and irritation are avoided during use, harm to pets and human bodies is avoided, and the safety requirement of pet scenes is met; the sterilization rate on escherichia coli and staphylococcus aureus during sterilization reaches 99.9% or above, the removal rate on peculiar smell gas such as ammonia gas and hydrogen sulfide exceeds 94%, the retention rate of effective oxygen is 95% or above, and unification of efficient sterilization, lasting deodorization and stable storage is achieved; meanwhile, the product is simple in preparation process, suitable for various scenes such as pet families and pet hospitals and convenient to operate.

The invention discloses a method for promoting enrichment of total flavonoids in chickpea sprouts by using a high-voltage pulsed electric field, which comprises the following steps: selecting high-quality chickpea seeds, after conventional germination culture, applying the high-voltage pulsed electric field in a sprout growth stage for treatment, and meanwhile, spraying and stress by using a sodium chloride aqueous solution, and finally obtaining the chickpea sprouts with high flavone content. Physical field treatment and salt stress are organically combined, secondary metabolism of the chickpea sprouts is remarkably activated through a synergistic effect, and the total flavone content reaches 3-4 times that of the chickpea sprouts before treatment and is far higher than that of a traditional method. The method disclosed by the invention is free of exogenous chemical additives in the whole process, has the outstanding advantages of safety, high efficiency, low cost, easiness in industrial production and the like, and can realize efficient enrichment of functional substances such as total flavonoids and the like.

This water treatment system treats urea-containing raw water to produce treated water with a reduced urea concentration, the system comprising: an agent addition device (40) for adding an agent decomposing urea contained in the raw water, the agent addition device (40) adding the agent to the raw water at a point in a raw water tank (11) or in the upstream thereof, the raw water tank (11) temporarily storing the raw water; a reverse osmosis membrane device (20) having a reverse osmosis membrane (25) and receiving water discharged from the raw water tank (11); and an analysis device (51) for measuring the urea concentration in water to be analyzed, the analysis device (51) using concentrate water as the water to be analyzed, the concentrate water being discharged from the reverse osmosis membrane device (20) without passing through the reverse osmosis membrane (25). On the basis of measurement results from the analysis device (51), at least one of the following is controlled: the amount of the agent to be added to the raw water by the agent addition device (40); the temperature of the raw water; and the pH of the raw water.

The invention discloses a method for deeply processing corn, and belongs to the technical field of corn deep processing. According to the method, the corn soaking speed can be increased by adopting a pressurized soaking process, the production efficiency is improved, efficient separation of protein and starch is realized by replacing a traditional sulfurous acid method with a multi-time grinding-screening method, and meanwhile, water generated in the production process is completely recycled, so that the production cost is reduced. The purpose of producing corn deep-processing products without wastewater discharge and chemicals is achieved; the method for deeply processing corn has the characteristics of high product yield, environment-friendly production process, no chemical residue in the product, high production efficiency, low operation cost and good production environment, and in addition, the salt-free condensate water generated after the soluble extracting solution is evaporated and concentrated is reused in the step of washing starch, so that the production cost is greatly reduced. The corn starch with lower ash content can be obtained; therefore, the method for deeply processing the corn has a relatively good application prospect.

An automated system to monitor and maintain the water quality in a liquid cooling system for computer servers. The ACQ system includes a side stream flow system with banks of chemical sensors, digital video recording, PLC control systems, chemical addition tanks, valves, injection manifold, chemical verification of additive methods, filters, and alert systems. Water is monitored in the flow loop with sensors to establish a baseline chemical profile. Changes in water chemistry or at periodic intervals trigger an automatic adjustment of water chemistry with various chemicals held on the system in tanks. Confirmation of the injection of chemicals is accomplished with gravimetric methods and measured chemical change to the system. Deviations from baseline chemical characteristics can trigger injections of chemicals depending on the specific variation.

The invention discloses a preparation method of a biomass sodium ion battery hard carbon negative electrode material and a product. According to the method, moso bamboos serve as raw materials, bamboo flesh is reserved after the moso bamboos are peeled and knotted, and deep physical impurity removal is achieved through high-pressure instantaneous pressure relief wall breaking, shredding and high-speed fly-cutter cutting and washing in sequence; carrying out multi-stage refining, granulation recombination and pyrolysis to obtain a precursor; and then carrying out high-temperature, high-pressure and negative-pressure modification regulation and control reconstruction, and carrying out chemical vapor deposition carbon coating by using acetylene or methane. No chemical additive is added in the whole process, and green manufacturing is achieved. The obtained hard carbon material is low in ash content, has optimized carbon interlayer spacing and moderate specific surface area, and shows high initial coulombic efficiency, high reversible specific capacity and excellent cycle stability. The method is coherent in process, remarkable in cost and quality control advantage and suitable for large-scale production.

The fermentation tank comprises a tank body, the top wall of the tank body is provided with a defoaming air inlet valve capable of adjusting flow, the side wall of the tank body is vertically provided with a first hanging lug, and a rotating shaft driven by a driving device to rotate is vertically arranged in the tank body; the first fixing piece is coaxially and fixedly arranged on the periphery of the rotating shaft, an annular closed first ring cavity is formed in the first fixing piece, and a second hanging lug is arranged on the peripheral wall of the first fixing piece; the first annular cavity is communicated with the defoaming air inlet valve through a connecting pipe penetrating through the tank wall; the two ends of the connecting cross rod are hinged to the first hanging lug and the second hanging lug respectively, and the connecting cross rod is used for supporting the first fixing piece in the tank body and allowing the rotating shaft to drive the first fixing piece to rotate synchronously; according to the defoaming device, the defects of fixed-point defoaming, local defoaming, excessive chemical additives and the like of a traditional defoaming mode are overcome through system feedback adjustment, meanwhile, the connecting cross rod is adjustable, and the first fixing piece is adjusted and fixed.

The application belongs to the technical field of papermaking, and particularly relates to an anti-skid paper base for a coating mold and a preparation method thereof. In order to solve the problem that the coating mold lacks effective anti-skid design in the prior art, the application provides an anti-skid paper base for a coating mold and a preparation method thereof. The anti-skid paper base is provided with a coating layer on the front and back surfaces of the base body. The front coating layer comprises a styrene-acrylic latex, a butadiene-styrene latex, a polyurethane resin and modified alkali lignin. The back coating layer is added with components such as nano-silicon dioxide and nano-calcium carbonate to improve the anti-skid performance. The preparation process involves steps such as wood pulp disintegration, chemical addition, molding spraying, glue dipping and drying, high-temperature cross-linking and groove modification, so that the final product has high strength, good air permeability and water resistance, and the friction coefficient is significantly improved.