44results about How to "Strong water repellency" patented technology

The invention relates to a novel fluoric block copolymer and a synthesis method thereof. The structure of the novel fluoric block copolymer comprises tow blocks or three blocks of AB or ABA: a. water soluble oxirane polyether or ethylene oxide and propylene oxide copolymer used as B segmer; b. hydrophobic and oleophobic perfluoro alkyl A segmer. The fluoric block copolymer can be used as surfactant, and the like, the synthesis method is simple, and is applicable to industrialized production. The fluoric block copolymer has sound surface activity in water solution, and can reduce the surface tension of the water solution to 12- 20mN/m. The surfactant can be used as emulsifier, dispersant, evaporation and volatilization inhibitor, penetrant, and the like.

The invention provides a long-acting nano hydrophobic coating composition and a preparation method thereof. The long-acting nano hydrophobic coating composition is prepared from the following components by certain weight percent: fluorine-containing chlorosilane, nano silicon dioxide, polysiloxane, rare-earth salts, a film forming agent, and an alcohols solvent. The preparation method comprises the following steps: adding fluorine-containing chlorosilane, polysiloxane, rare-earth salts and a film forming agent to nano silicon dioxide sol at 30-70 DEG C, and mixing to react to obtain the long-acting nano hydrophobic coating composition. Compared with the prior art, the long-acting nano hydrophobic coating composition has the following beneficial effects that the coating composition is convenient to use; after the coating is sprayed to a clean and dry glass surface and then uniformly wiped with dry cloth, a layer of transparent nano hydrophobic coating is formed on the glass surface and has a strong water repellent effect; the effective time can reach up to over 3 months after once wiping, and glass becomes more brilliant and bright.

The invention provides a high-barrier spun and melted novel breathable material. When the gram weight is 25 gsm, hydrostatic pressure resistance is 390-410 mmH2O, air permeability is 450-550 L/m<2>/S,MD strength is 65-75 N/5 cm, CD strength is 28-35 N/5 cm, MD elongation is 40%-80% and CD elongation is 40%-80%. The invention also provides a preparation method of the novel breathable material. Themethod comprises steps of material selection, melt extrusion, fiber drafting and hot rolling treatment. S-layer fine denier fiber with fineness of 1.5-1.8 denier is obtained through fiber drafting; M-layer fine denier fiber has fineness of 2-4 micrometers, and water repellency and filling power of fiber are kept. The invention also provides an application of the novel breathable material in diapers and the breathability of the diapers is substantially improved.

The invention relates to a preparation method of a ferrous metal organic framework material. The preparation method comprises the following steps of dissolving ferrite and 2, 6-naphthalenedicarboxylic acid into deionized water; adding tartaric acid and acetic acid under a stirring condition; adding the obtained precursor solution into a stainless steel high-pressure reaction kettle for hydrothermal reaction to obtain precipitates, then washing the precipitates sequentially by deionzed water, N, N-dimethylformamide and acetone respectively; and centrifuging, filtering and drying so as to obtain the ferrous metal organic framework material. The invention also relates to the application of the ferrous metal organic framework material prepared by the method disclosed by the invention in adsorbing methane in natural gas. The ferrous metal organic framework material obtained by the method is large in specific surface area, is reasonable in pore volume distribution, is obviously intensified in the affinity with a methane molecule, and is relatively high in sulfur pollution resistance, the severity of the operation condition for selectively adsorbing methane from natural gas is further reduced, the flexibility of a small LNG device is greatly improved, and the cost is reduced.

The invention discloses an LED (light-emitting diode) electronic display screen detergent, and a preparation method and cleaning method thereof, belonging to LED electronic industry. The LED electronic display screen detergent comprises the following components in parts by weight: 1-5 parts of nano TiO2, 10-16 parts of Enteromorpha extract, 10-15 parts of citric acid, 3-6 parts of trimer glyceryl ester, 5-10 parts of sodium peroxypyrophosphate, 10-15 parts of triethanolamine, 3-8 parts of diethylene glycol monohexyl ether, 8-12 parts of turpentine, 5-9 parts of lauryl sodium sulfate and 50-90 parts of deionized water. The detergent fills up the blank of deficiency in special detergents for LED electronic display screens in the domestic market, is an effective detergent applied to LED electronic display screens in deed, is not corrosive for LED lamps and substrates, has the high self-cleaning function, is natural and green, and has broad market prospects.

The invention belongs to the technical field of a decorative material and discloses formaldehyde-removing antibacterial seaweed mud paint. The formaldehyde-removing antibacterial seaweed mud paint comprises 18 to 32 parts of water, 0.5 to 0.8 part of dispersing agent, 0.8 to 1.2 parts of antifreezing agent, 0.8 to 1.5 parts of film forming assistant, 10 to 25 parts of titanium dioxide, 15 to 20 parts of calcium carbonate, 5 to 8 parts of kaolin, 2 to 6 parts of mica powder, 0.15 to 0.3 part of nanometer Ag antimicrobial, 3 to 8 parts of seaweed mud, 0.3 to 0.5 part of thickener, 0.3 to 0.8 part of negative ion additive, 15 to 30 parts of odor-purifying emulsion, 0.15 to 0.3 part of mould inhibitor, 0.2 to 0.3 part of preservative and 0.1 to 0.2 part of water repellent agent. The invention also discloses a preparation method of the formaldehyde-removing antibacterial seaweed mud paint. The formaldehyde-removing antibacterial seaweed mud paint disclosed by the invention is fine and smooth in hand feeling and has strong water repellency and good durability; the surface of a paint film is smooth and fine; the formaldehyde-removing antibacterial seaweed mud paint has efficient antimicrobial and mould-proof functions; formaldehyde is efficiently adsorbed and decomposed and odor is removed; indoor humidity is automatically regulated; the formaldehyde-removing antibacterial seaweed mud paint not only overcomes the defects of a common internal wall latex paint on the aspects of adsorbing and decomposing formaldehyde, removing odor and the like, but also solves the problems that a seaweed mud coating can only adsorb formaldehyde, but cannot decompose formaldehyde, is rough in hand feeling and the like.

The invention discloses a thermosetting resin composition and an application thereof. The thermosetting resin composition comprises a first resin compound, a second resin compound and a third resin compound, wherein the first resin compound comprises a thermosetting phenolic resin and a first reinforcing fiber; the second resin compound comprises epoxy resin, flame-retardant epoxy resin, a latentcuring agent, vegetable oil modified resin, thermoplastic resin, a second reinforcing fiber, a common filler, a heat-conducting filler, a plasticizer and an accelerant; and the third resin compositioncomprises the epoxy resin, the flame-retardant epoxy resin, the latent curing agent, the vegetable oil modified resin and the accelerant. The fillable amount of the filler in a copper-clad plate produced from the thermosetting resin composition is increased, so the problem that the copper-clad plate cannot be developed towards the directions of multifunctionalization, high performance and high reliability due to no further filling with the functional filler because of small pores and low porosity of the reinforcing fibers is solved.

The invention relates to a method for adhesion-promotion resin by enabling aromatic compound to react with formaldehydes under the insistence of an acid catalyst, and a product thereof, in particular to a method for producing long-acting adhesion-promotion resin by using a modifying agent and a catalyst, a product, and application of the product. In the preparation method after steps of condensation reaction between the aromatic compound and the formaldehydes, separation of excessive acid, neutralization reaction, distillation of excessive formaldehydes, a step of modification treatment is added, namely, monohydric phenol and organic acid are added and respectively uses as the modifying agent and the catalyst to prepare the adhesion-promotion resin. The adhesion-promotion resin has the advantages of long storage period, humidity resistance, high temperature resistance and the like; and rubber prepared by the adhesion-promotion resin has high drag extension rate, high tear strength and the like.

The invention relates to the technical field of building materials, in particular to a prestressed concrete cylinder pipe preparation method. The method comprises the following operating steps including bell and spigot manufacturing; steel cylinder manufacturing; hydrostatic test performing; welding repair; pipe core forming; pipe core maintenance; surface mending; pipe core water curing; wire winding; guniting; appearance mending; and finished product stacking. According to the prestressed concrete cylinder pipe preparation method, the inner wall of a mould shell and the outer wall of a mouldinner core are coated with a concrete parting agent, the parting agent is high in hydrophobicity, oil film is thick, and the good double effects of good demoulding performance and expense saving areachieved; air can be isolated through an arranged outer epoxy resin coating layer and an inner epoxy resin coating layer, inside metal materials are protected, and meanwhile, the characteristics of compactness, water resistance, good leakage resistance and high strength are achieved; and through arranged reinforcing ribs, the concrete pipe surface bearing capability and impact strength are improved, and effective results are achieved by means of the lowest economic cost.

The invention discloses a metal paint surface crystal-plated material. The metal paint surface crystal-plated material is prepared from the following components in parts by weight: 35 to 45 parts of organic silicon resin, 0.1 to 0.2 part of amino silane, 53 to 63 parts of an organic solvent, 0.3 to 0.5 part of a fluorine-containing surfactant, 0.2 to 0.3 part of an ultraviolet light absorber, 0.2to 0.3 part of polydimethylsiloxane, 0.001 to 0.005 part of a catalyst and 0.1 to 0.2 part of isocyanate. The metal paint surface crystal-plated material disclosed by the invention is a polymer whichtakes repeated Si-O bonds as a main chain and of which silicon atoms are directly connected with organic groups, high-temperature solidification in a baking room is not required, the metal paint surface crystal-plated material can be solidified into a crystal glass crystal-plated layer which takes SiO2 as a main component just by generating a chemical reaction-crystallization with water in air, and the metal paint surface crystal-plated material is very good in yellowing resistance, hardness, hydrophobicity, acid-base resistance and the like. Meanwhile, the invention provides a preparation method of the metal paint surface crystal-plated material.

The invention relates to an outdoor fir finished-material manufacturing method. A fir is cut, dried and carbonized, and then the fir is also sawed and sliced into long materials which are combined, glued, pressed, solidified, cooled and discharged, etc. to be made into square, trapezium or triangle shape fir long materials (2) which are lightly or moderately carbonized and are all vertically arranged. The long materials (2) are adhered to waterproof glue layers (1) one by one and by intervals to be pressed into single-layer or multi-layer materials which are used for making outdoor pleasure grounds and play grounds, etc. establishments or other apparatuses. A bond adopted by the method is waterproof and an internal stress of the wood is small. The method has the advantage that a warp distortion is difficult to happen and creates conditions for more ideal outdoor application of small-diameter firs.

The invention relates to a woolen sweater treating liquid containing sodium alginate. The woolen sweater treating liquid is prepared from the following ingredients in parts by weight: 3-5 parts of sodium alginate, 1-3 parts of magnesium carbonate, 1-4 parts of methylcellulose, 2-5 parts of ethyl formate, 2-5 parts of evergreen extract, 3-5 parts of tung tree extract and 100-125 parts of water. A woolen sweater treated by the prepared woolen sweater treating liquid has the effects of bacteriostasis, water repellency and strong dirt-removing power.

Disclosed is development of a single-sided alcohol-resistant and single-sided anti-static medical SMS. The development is characterized by comprising the steps of raw material mixing, melt extrusion,drafting, hot rolling, oiling, drying and cooling shaping. According to YY/T 0506.2-2016 standard of the pharmaceutical industry in China and the European BS EN 13795-1: 2019 standard, the water permeability resistance of the single-sided alcohol-resistant and single-sided anti-static medical SMS non-woven fabric meets the requirement of a water column with the single point value of 60 cm; the medical SMS non-woven fabric has higher barrier, higher water seepage resistance and excellent basic physical properties, the pattern surface can keep excellent alcohol resistance, and the smooth surfacehas favorable antistatic property; the single side of the SMS non-woven fabric has antistatic property and the single side of the SMS non-woven fabric has alcohol resistance through direct productioninstead of an after-treatment mode; and productivity improvement and the like can be achieved.

The invention provides a novel high barrier spunbond ventilating material. When the gram weight of the material is 15 gsm, the anti-hydrostatic pressure is 100-105 mmH2O, the air permeability is 3810-3820 L/m<2>, the MD strength is 30-35 N/5 cm, the CD strength is 15-17 N/5 cm, the MD elongation is 48-58% and the CD elongation is 65-75%. The invention further provides a preparation method of the novel ventilating material. The preparation method comprises material selection, fiber traction and hot rolling treatment. In the fiber traction step, the traction air pressure is 3000-4000 pa, the process air temperature is 16-30 DEG C, the slit width is 20-24 mm and the fineness of the obtained fine denier fibers is 1.5-1.8 denier. The invention further provides application of the novel high barrier spunbond ventilating material in paper diapers. The dehumidifying property is improved and the problems of reddening of skin of babies and induction of diaper rash when the paper diapers are usedare solved while the ventilating property is improved.

The invention discloses a cutting fluid suction head comprising a suction head body. An operation bearing is arranged on the surface of the inner surface of one side of the suction head body. A cleaning mechanism is arranged on the outer surface of the lower end of the suction head body. A connection ring is arranged on the outer surface of one side of the cleaning mechanism. A connection mechanism is arranged on the outer surface of one side of the connection ring. According to the cutting fluid suction head, by means of the cleaning mechanism, the cleaning mechanism can provide a convenientdaily cleaning and maintaining structure in the work process, workers can conveniently conduct the maintaining work of the suction head while the cleaning function is provided, the use effect is enhanced, the cleaning efficiency is also improved, and use is facilitated for people; and by means of a connection mechanism, the connection mechanism provides a simple and practical connection structure,the connection function can be provided in the work process, conveying pipes can be conveniently connected, and the use effect of the device is further improved.

The invention discloses a storage cabinet for office files, the storage cabinet comprises a storage cabinet back plate, a baffle and a side plate mechanism are arranged on the outer surface of the front end of the storage cabinet back plate, the side plate mechanism is located on one side of the baffle, a first placing plate, a second placing plate and a third placing plate are arranged on the outer surface of one side of the baffle, the first placing plate is located at the upper end of the second placing plate, the third placing plate is located at the lower end of the second placing plate,and a moisture-proof mechanism is arranged on the outer surface of the lower end of the side plate mechanism. According to the storage cabinet for the office files in the invention, through the arrangement of the moisture-proof mechanism, the moisture-proof mechanism can achieve a moisture-proof effect in the use process, so that the protection effect can be brought to the storage cabinet and theoffice files in the storage cabinet, the problem that part of the storage cabinet is prone to damp is solved, and resources are saved; and through the arrangement of the side plate mechanism, the sideplate mechanism is convenient to clean, and the storage cabinet is facilitated to be used by people.