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1325 results about "Dodecylbenzene" patented technology

Dodecylbenzene is an organic compound with the formula C₁₂H₂₅C₆H₅.Dodecylbenzene is a colorless liquid with a weak oily odor. Floats on water. This colourless waxy solid consists of a dodecyl group (C₁₂H₂₅) attached to a phenyl group (C₆H₅). Dodecylbenzene is a precursor to sodium dodecylbenzenesulfonate, a surfactant that is a key ingredient of household laundry detergents, such as detergent powder.

Centrifugal casting radiant tube paint and preparation method thereof

The invention is a centrifugal casting radiant tube coating and a preparation method thereof, the coating comprises the ingredients (mass percent) of: 25-30% of diatomite of, 5-10% of zircon powder, 1.0-1.2% of titanium powder, 1.5-1.8% of iron powder, 4.5-5.0% of sodium bentonite, 2.0-2.5% of polyvinyl alcohol, 0.8-1.0% of sodium alginate, 3.5-4.0% of silica sol, 0.8-1.0% of sodium dodecylbenzene sulfonate, 0.05-0.08% of silane and 46.82-49.95% of water, wherein, the mass percent of the diatomite and the zircon powder is not less than 35% and not more than 37%, the mass percent of the titanium powder and the iron powder is not less than 2.7% and not more than 2.9%, and the mass percent of the sodium bentonite plus the polyvinyl alcohol plus the sodium alginate is not less than 8.0% and not more than 8.2%. The inventive coating is used for the centrifugal casting radiant tube after dry-blending, mixed grinding and sieving, uniformly distributed bulges (namely pitting surface) can be formed on the outer surface of the radiant tube to improve heat efficiency of the radiant tube. The inventive coating also has excellent adhesive force, high temperature strength and crack resistance, thus reducing defects on the surface of the radiant tube and improving quality of complex tube. Using the inventive coating to cast the radiant tube can result in remarkable economical benefit.
Owner:靖江市黎明铸造材料厂

Chromium-free treating liquid for preparing erosion-resisting oxide film on aluminum alloy surface, treating and using method thereof

The present invention discloses a chromium-free treatment liquid for preparing corrosion resistant oxidation film at aluminium alloy surface as well as the processing and use method thereof, characterized in that said treatment fluid utilizes a cobalt (III) salt as a main salt and a hypermanganate and a nitrate as a composite oxidizing compound to prepare a composite Co-Mn oxidation film having favorable corrosion resistance performances at aluminium alloy surface. The formula for said treatment liquid is that each litre solution contains cobalt salt of 5 g / L(-1)-20 g / L(-1), kalii permangana of 1 g / L(-1)-4 g / L(-1), sodium nitrate of 1 g / L(-1)-4 g / L(-1), promotor (chlorides and fluorides) of 1 g / L(-1)-4 g / L(-1), sodium acetate of 20 g / L(-1)-50 g / L(-1) and wetting agents (sodium dodecylbenzene sulfonate, OP-10) of 0.5 g / L(-1)-1 g / L(-1). Saic processing and use method comprises (1)sanding the aluminium alloy until its surface is smooth and even; (2) pretreating the aluminium alloy surface; (3) performing a conversion processing by using the treatment fluid; (4) cleaning-up using water and atmospheric-drying naturally. Said treatment fluid in accordance with the present invention possesses the advantages of environmental protection due to its hexavalent chromium-free, fast film-forming speed, simple process, uniform rete, strong corrosion resistance, few environment pollution, and the like.
Owner:GUANGYA ALUMINUM

Copper oxide micro-nano composite structural material and preparation method thereof

The invention discloses a copper oxide micro-nano composite structural material, which consists of CuO microspheres with nano flaky secondary structures, fan-shaped / bar-shaped CuO and CuO nanosheets in any ratio, wherein the CuO microspheres are 7-10 microns in diameter, and are formed by self-assembling nanosheets; the fan-shaped / bar-shaped CuO is formed by self-assembling bar-shaped CuO; and CuO bars are 6-12 microns in length and 400-600 nanometers in diameter. The copper oxide micro-nano composite structural material can be taken as a solar energy transformation material, a photocatalyst and a fluorescent material. A preparation method of the copper oxide micro-nano composite structural material comprises the following step of: preparing by taking copper chloride, ammonia water and sodium hydrate as raw materials and taking sodium dodecylbenzene sulfonate as a template under a low-temperature condition with a hydro-thermal method. The preparation method has the advantages of mild reaction condition, easiness for operating, low preparation cost, high product structure controllability, high repeatability and easiness for realizing large-scale production, contributes to large-scale popularization and application, and has great production and practical meanings.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

Carbon fiber and ceramic fiber reinforced wet paper-based friction sheet and manufacturing method thereof

The invention relates to a carbon fiber and ceramic fiber reinforced wet paper-based friction sheet and a manufacturing method thereof. The wet paper-based friction sheet provided by the invention has the characteristics of high friction coefficient, stable friction performance, good wear resistance, adjustable dynamic / static friction coefficient ratio and high energy absorption capacity; the manufacturing method has the characteristics of simple working procedure and convenience and easiness in manufacture. The technical scheme is as follows: the carbon fiber and ceramic fiber reinforced wet paper-based friction sheet comprises ingredients including a substrate material, a friction performance regulator and a forming binder and further comprises an appropriate amount of polyacrylamide, an appropriate amount of polyoxene and an appropriate amount of sodium dodecylbenzene sulfonate; the manufacturing method of the carbon fiber and ceramic fiber reinforced wet paper-based friction sheet comprises the following steps of preparing base paper of a carbon fiber and ceramic fiber reinforced wet paper-based friction material; manufacturing the carbon fiber and ceramic fiber reinforced wet paper-based friction sheet.
Owner:杭州汉乐科新材料科技有限公司

Erosion agent capable of displaying solidified dendritic structure of Fe-36 Ni invar alloy and erosion method of erosion agent

Disclosed are an erosion agent capable of displaying the solidified dendritic structure of a Fe-36 Ni invar alloy and an erosion method of the erosion agent. The erosion agent includes 1 g-2 g of picric acid, 0.5 g-1 g of anhydrous cupric chloride, 50 ml-60 ml of absolute ethyl alcohol, 0.5 ml-1 ml of hydrochloric acid and 1 g-2 g of sodium dodecylbenzene sulfonate. The erosion method of the erosion agent includes the steps that the prepared erosion agent is heated to the temperature of 50 DEG C-60 DEG C, a processed sample with the downward polishing face is suspended in the heated erosion agent to be eroded for 20 s-30 s, the eroded surface is wiped with ethyl alcohol firstly after erosion is completed, and then the sample is slightly polished at the one fourth radius position of a polishing machine for 4 s-6 s so that a copper film generated on the eroded surface can be removed. According to the method, the operating procedure is simple, the erosion effect is good, and the solidified dendritic structure of an invar alloy can be observed quickly and clearly, so that the solidification condition corresponding to continuous casting is obtained, and technical bases are provided for optimizing the continuous casting process technologies.
Owner:山西高义钢铁有限公司

Electro-conductive glass substrate cleaning agent and preparation method thereof

The invention discloses an electro-conductive glass base plate cleaning agent, which is formed by components with the following percentage by weight, baking soda 3-5%, sodium tripolyphosphate 3-5%, monoethanolamine 2-4%, isopropyl alcohol 5-10%, alkyl alcohol polyoxyethylene ether 0.2-0.4%, sodium dodecylbenzene sulfonate 0.1-0.5%, ethylene glycol monobutyl ether 2-5% and the rest is water. The process for preparation comprises the following steps: adding the above raw materials into an emulsion tank in turn, and then preparing the cleaning agent after mixing, homogenizing, cooling, exhausting and filtering. The electro-conductive glass base plate cleaning agent of the invention has low pH value, when in use, the electro-conductive glass base plate cleaning agent has microvesicle or has no bubbles, which has strong water solubility, the surface of glass has no residues and particulate matters after cleaning. The cleaning agent has excellent cleanness, nontoxic, nonirritant and easy biodegradation, which is easy to discharge and process discard solution. And the cleaning agent has the advantages of simple process for preparation, high yield, only little deposition and residue, low power consumption, convenient process and operation, easy automation, no environmental contamination and high economic benefit.
Owner:曹学增
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