49results about How to "Increase penetration time" patented technology

The invention relates to a graphene-containing metal surface treatment agent and a preparation method of an anti-corrosion coating thereof. Graphene oxide is prepared by a chemical oxidation method, and the graphene oxide is subjected to surface modification and reduction so as to obtain good compatibility with a metal surface treatment agent; and the graphene is added into the metal surface treatment agent according to a certain proportion. The treatment agent contains A) waterborne resin, for example, waterborne polyurethane and waterborne acrylic resin; B) a coupling agent, for example, a silane coupling agent and a titanate coupling agent; and C) graphene, wherein the surface state can be graphene oxide, reduced graphene oxide or graphene subjected to surface chemical modification. After the surface treatment agent containing uniformly dispersed graphene, a film is formed on the surface of a metal substrate by a rod coating method, and the film is dried at a certain temperature to obtain a graphene-reinforced composite coating. An electrochemical impedance test method proves that the composite coating has ultrahigh corrosion resistance.

The invention discloses a preparation method of viscose fiber, and the technical problem solved by the invention is to provide the preparation method of traditional Chinese medicine velvet viscose fiber capable of releasing and permeating active ingredients in human body for a long time.

A combined cultivation method for water and soil conservation for sloping farmlands relates to cultivation methods for water and soil conservation and solves the problem that using the single cultivation technique for holding water is unsatisfactorily effective. The combined cultivation method includes: firstly, adjusting ridges of sloping farmlands on downward slopes and inclined slopes under ridge plowing adjusted into transverse slope ridges, and adopting contour farming and belt planting; secondly, building ridges, and planting protective plant belts on the ridges; thirdly, subsoiling forfarming; fourthly, performing furrow damming; and fifthly, performing no-tillage conservation tillage. Furrow subsoiling and furrow damming are technically combined and integrated according to soil and weather characteristics of a black soil area, so that water and soil loss is reduced or avoided for sloping farmlands to the greatest extent, water and soil are conserved, water utilization rate isincreased, and crop yield is increased evidently. By the method, soil saturation and infiltration speed ratio is increased by 24.1% in processing treatment, water utilization rate is increased by more than 15%, crop yield is 30kg per mu, and 100 Yuan per mu is increased..

The invention relates to an anti-wrinkle tidying method for a pure cotton fabric, sequentially comprising the following processes: shell fabric preparation, pre-limbering, resin padding, curing, rinsing, post-limbering and preshrinking. The method has the main technical characteristic that the padding formula used in the resin padding process comprises the following components by concentration: 80-120g/L of 2D resin, 80-100g/L of oxalaldehyde resin, 40g/L of 1,3-Dimethylurea, 40g/L of magnesium chloride activated by organic acid, 20-40g/L of brute-force protective agent, 1-2g/L of penetrating agent and the balance of water. The invention has reasonable design, and fully utilizes the advantages of two types of the resins and catalysts; the tidied pure cotton fabric has the characteristics of higher planeness, higher brute force, favorable abrasive resistance, lower formaldehyde content and the like; and the garment made of the tidied pure cotton fabric has the characteristics of comfortable wearing, beautiful appearance and strong durability.

The invention discloses a device for modifying an activated carbon adsorbent by using a rotating low-temperature plasma. A track is transmitted by a motor, and is wound on a quartz tube reactor, and the two ends of the quartz tube reactor are provided with an air inlet and an air outlet; a joint of an air inlet pipe is installed in the air inlet by means of a sealed bearing, and a discharge area is formed in the middle of the quartz tube reactor and is interspersed in a grounding coil; the diameter of the grounding coil is greater than the outer diameter of the quartz tube reactor, and the grounding coil is erected on a grounding support; a corona wire is erected inside the discharge area of the quartz tube reactor by means of a rolling bearing, penetrates out of the air outlet of the quartz tube reactor and is connected with an alternating current power supply. The invention also discloses a corresponding method. The device and the method provided by the invention have the advantages of easiness in operation, environment friendliness, economy, and large-scale production, the obtained absorbent is in a granular shape, the penetration time of the adsorbent can be prolonged, the CH4 adsorption capacity of the adsorbent can be increased, and the device and the method can be used for effectively enriching and separating CH4 gas with the concentration of 0.2% or used for the treatment field of volatile organic compounds (VOCs).

The invention relates to a preparation method of activated carbon adsorbent loaded with titanium dioxide, which belongs to the technical field of absorbent. The method comprises the following specific steps that: the activated carbon is pre-treated, washed and dried; titanium trichloride (TiCl3) solution is prepared into titanium trichloride-hydrogen chloride (TiCl3-HCl) solution with different molar concentration, and the TiCl3-HCl solution is transferred to the polyfluortetraethylene liner of a stainless steel reaction kettle; the treated activated carbon is added into the TiCl3-HCl solution, and the stainless steel reaction kettle is screwed and put into an electric heating constant temperature blowing dry box to be treated by hydrothermal treatment; and the activated carbon after hydrothermal treatment is washed and dried, and the activated carbon absorbent loaded with titanium dioxide is obtained. The preparation method of activated carbon adsorbent loaded with titanium dioxide has a simple process, is convenient to operate, obtains granular loaded absorbent, can improve the penetration time of the absorbent, does not use any organic solvent, nearly has no pollution in a production process, meets the requirements of sustainable development, and is an environmental-friendly production process.

The invention provides a pyraclostrobin suspending agent and a preparation method thereof. The pyraclostrobin suspending agent comprises pyraclostrobin, a wetting dispersant, a thickener, an antifreezing agent, a defoamer, a synergistic aid, a grinding aid and water. According to the pyraclostrobin suspending agent, the particle sizes of the components in the suspension are ground to be smaller than or equal to 1 micron, the pesticide effect of the pyraclostrobin suspending agent can be improved, the unit area application amount of pyraclostrobin is effectively reduced, and pesticide resistance is avoided. Besides, the inventor screens proper wetting dispersant, synergistic assistant, thickener, grinding aid and proportion thereof to improve the stability of the suspension, so that the long-term stability of the suspension can be maintained even if the particle size of the components in the suspension is ground to be less than or equal to 1 mu m.

The invention provides 3D science paper as well as a production method and production equipment thereof. The 3D science paper is prepared by soaking printing decorative paper serving as a raw material into glue with high transparency, wherein the glue comprises the following components in percentage by weight: 20-30% of polyurethane, 30-50% of acrylic resin, 1-3% of a cross-linking agent, 1-3% of a curing agent, 3-5% of a permeating agent, 1% of a flatting agent and the balance of water. The 3D science paper has an extremely good homochromatic effect, does not have chromatic aberration, is high in hardness, scratch-resistant, wear-proof and good in toughness, can be bent for 180 degrees without cracking, and is favorable for packaging. Moreover, the raw materials, aids, resin and the like in the production process of the product are water-soluble, so the 3D science paper is nontoxic and environmentally friendly.

The invention discloses aluminum oxide-containing polyaniline zinc powder flake epoxy heavy anti-corrosion coating and a preparation method thereof. The coating comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 35-85 parts of epoxy resin, 0.5-25 parts of polyaniline zinc powder flake, 0.1-10 parts of aluminum oxide, 0.1-5 parts of pigment, 1-15 parts of packing, 0.01-2 parts of anti-sag agent, 0.01-0.5 part of dispersant, 0.01-2 parts of flatting agent, 0.01-0.5 part of deforming agent and 5-40 parts of mixed solvent; and the component B comprises the following components in parts by mass: 40-90 parts of amine curing agent and 10-60 parts of solvent; and the coating is prepared by mixing and stirring the component A and the component B for 1-5 minutes according to a mass ratio being 1: (0.1-1):1. The corrosion resistance, seawater erosion and abrasion resistance, ageing resistance and anti-penetrating property of the coating system are obviously improved; and the coating can be applied to heavy anti-corrosion engineering in fields of petrochemical equipment, pipelines, offshore oil platforms, berthing facilities, ships and the like.

The invention discloses antirust paint processing a transmission tower surface and a preparation method thereof, and relates to the technical field of transmission tower surface protection. The antirust paint processing the transmission tower surface comprises, 15%-17% of epoxy resin E-44, 6%-9% of polyvinyl butyral, 5%-7% of zinc phosphate, 3%-6% of aluminum triphosphate, 1%-4% of zinc borate, 20%-40% of flake zinc powder, 1%-2% of organic bentonite, 4%-7% of a corrosion conversion agent, 20%-26% of a solvent, and 4%-7% of a mixed curing agent. The paint is excellent in corrosion resistance, strong in adhesive force with the transmission tower surface, not easy to fall off and long in protective life, the preparation technology is simple and easy to operate, and automatic production can be realized.

The invention provides a formula and preparation method of an activated carbon adsorbent for formaldehyde and methane adsorption. The formula comprises modified activated carbon, a TiCl3 solution anda hydrochloric acid solution, and the preparation method comprises the following specific steps: performing pretreatment with ultrasonic wave activated carbon, and performing water washing and drying;performing pulverizing and calcining on bentonite; grinding the bentonite and activated carbon, and performing drying; performing hydrothermal treatment in a mixed solution of the TiCl3 solution withthe hydrochloric acid solution, and performing washing, suction filtration and drying; and performing calcination, and reducing the temperature to room temperature so as to obtain the activated carbon adsorbent for formaldehyde and methane adsorption. Through the activated carbon adsorbent produced by using the method, the number and proportion of mesopores of activated carbon are increased, thepenetration time of the adsorbent is improved, high catalytic oxidation ability and faster decomposition speed of formaldehyde and methane are achieved, and no by-products with pollution to the environment are produced in the preparation process; and in addition, the adsorbent also has a certain adsorption-decomposing effect on multiple small-molecule organic substances.

The invention discloses a high-content hybrid fiber concrete bulletproof and explosionproof brick. The brick is prepared from, by mass, 14.21% of steel fibers, 0.04% of polypropylene fiber, 19.00%-19.80% of cement, 5.40%-5.80% of water, 17.00%-18.00% of sand, 37.50%-38.50% of crushed stone, 2.60%-3.00% of silica fume, 2.00% of fly ash and 0.45% of efficient water reducing agent. The high-content hybrid fiber concrete bulletproof and explosionproof brick has the advantages that the brick body has excellent dynamic and static mechanical properties of compression resistance, tensile resistance, bending resistance, shock resisting penetration, shock resisting toughness and the like, and the purpose of resisting bullets and preventing an explosion are achieved.

The invention discloses a silane paste protection agent. The silane paste protection agent is prepared from, by weight, 90-110 parts of silane monomers, 3-5 parts of an effective emulsifier, 10-30 parts of deionized water, 0.5-1.5 parts of a thickener, 0.5-1 part of an antioxidant and 0.2-0.4 part of a buffer solution. A preparing technology of the silane paste protection agent includes the first step of mixing and the second step of mixing. The silane paste protection agent overcomes the defects that a traditional concrete anti-corrosion coating is airtight, moisture in concrete can not volatilize easily, the coating structure is damaged, and the anti-corrosion performance is poor. Besides, compared with a liquid silane impregnation agent, the silane paste protection agent has the advantages that the silane paste protection agent has thixotropy and non-flowability, so that the number of painting times is reduced, the penetration time is prolonged, and the penetration depth is increased; a self-crosslinking reaction can happen, silane or siloxane in the product can be self-crosslinked with water under paste demulsification, and it is not required that concrete provides extra moisture for the reaction.

The invention provides a titanium nitride-loaded active carbon adsorbent and a preparation method thereof, belonging to the technical fields of adsorbents. Titanium nitride is loaded on active carbon to form combined particles. The preparation method comprises the following steps: pretreating and drying active carbon; preparing a TiCl3-HCl solution from TiCl3 and transferring the solution to a polytetrafluoroethylene inner tank of a stainless steel reaction kettle; adding active carbon into the inner tank and carrying out hydro-thermal treatment; rinsing and drying active carbon obtained after hydro-thermal treatment so as to obtain the titanium nitride-loaded active carbon adsorbent; and roasting the adsorbent in a porcelain boat under nitrogen protection and allowing temperature of the adsorbent to drop to room temperature so as to obtain a final product of the titanium nitride-loaded active carbon adsorbent. The preparation method is simple and is convenient to operate; and the prepared load type adsorbent is granular, which enables adsorption capacity and penetration time of the adsorbent to be enhanced.

The invention provides a sealing method of a display screen frame. The sealing method of the display screen frame comprises the following step: coating a to-be-coated region in the direction of a first edge which is parallel to an upper substrate by using glue so that a plurality of gluing regions are formed on a lower substrate by various coating processes in a one-to-one correspondence manner, wherein the various gluing regions are successively formed along the direction which is away from the first edge. Therefore, the inner side of the first edge which is close to the to-be-coated region is coated with glue, then step-by-step outward coating is carried out, multiple gluing regions can be formed on the to-be-coated region, penetration time of the gluing region on the inner side is prolonged relatively, a seam can be filled with glue which is close to the gluing region of the first edge as much as possible, the amount of glue which permeates into the seam is increased, uniformity ofsolidified glue of the inside and the outside of the seam after the glue is solidified is improved effectively, and the sealing effect of the display screen frame is improved. In addition, the efficiency of the sealing process is improved.

The invention belongs to the field of building materials, and particularly discloses crack-resistant reinforced concrete. The crack-resistant reinforced concrete comprises the following components: athree-dimensional metal structure, an aggregate, low-alkali cement, fly ash, mineral powder, silica fume, a cement mortar defoaming agent and a coupling agent; the three-dimensional metal structure comprises a sphere and a ring plate; the sphere comprises an upper hemisphere and a lower hemisphere; a connecting rod is arranged on the upper hemisphere; the ring plate is arranged on the connecting rod; the lower hemisphere is provided with a connecting groove; and the connecting groove is connected with the connecting rod. The crack-resistant effect of the crack-resistant reinforced concrete inthe scheme is obvious, the tensile strength and anti-cracking strength are greatly improved, and the concrete can be used to prevent early cracks during a casting period; the tensile strength and theanti-cracking effect are improved during the solidification of the concrete, original cracks of the concrete interface are reduced and even eliminated, and the crack-resistant effect is achieved; after the solidification, further expansion of the cracks is prevented, the penetration time of the cracks is prolonged, and deformation of the three-dimensional metal structure can be utilized to preventfurther expansion of the cracks, so that the crack resistance effect is further enhanced.