36 results about "Dodecylbetaine" patented technology

The invention relates to a preparation method of montmorillonite as a novel overflowed oil pollution absorbing material, which comprises the steps of: preparing montmorillonite into a turbid liquid, wherein the mass proportion of water to soil is 10:1-20:1; adding dodecylbetaine (BS-12) or dodecyl sulfobetain (SB-12) as a green surface active agent, stirring for 5-10min to ensure that the green surface active agent is dispersed uniformly; ultrasonically treating for 10-20min; carrying out solid-liquid separation by using a filtering method, washing with water; and drying, crushing and the like. The invention has the advantage that the green surface active agent can generate ion exchange action with positive ions among the montmorillonite to enter among montmorillonite layers to ensure that the dewatering property of the montmorillonite can be enhanced and the swelling performance is improved, thus the oil spilling pollution can be more effectively held back.

The invention discloses 80 percent phosethyl-aluminum water dispersible granules. The granules consist of the following components in percentage by weight: 85 to 87 percent of 95 percent phosethyl-aluminum raw drug, 2 to 5 percent of 50 percent alkyl glycoside, 2 to 5 percent of dodecyl dimethyl betaine, 1 to 5 percent of binder gum Arabic, and 5 to 10 percent of filler ammonium sulfate or urea. The preparation method comprises the following steps: uniformly mixing the raw materials, crushing, mixing with water, granulating, and drying to obtain the 80 percent phosethyl-aluminum water dispersible granules. The 80 percent phosethyl-aluminum water dispersible granules have long pesticide effect time and few application times to crops, a fertilizer is applied to the crops while insects and diseases of crops are prevented and controlled, and the crops can absorb nutrition to facilitate growth.

The invention belongs to the technical field of molecular biological detection, and particularly provides a blood DNA extraction kit only needing one-step washing by using a magnetic bead method. Theblood DNA extraction kit comprises a lysis solution, a binding solution, a proteinase K solution, a washing solution and an elution buffer solution. The method is characterized in that the lysis solution comprises Tris, EDTA, NaCl, NaDC, dodecyl-N-betaine, NLS, GuHCl, Triton X100, NH4Cl and mercaptoethanol; the binding solution comprises isopropanol, PEG 8000 and Brij 58; the washing solution comprises GuHCl, Tris, ethanol and sodium bicarbonate; and the elution buffer solution comprises Tris and EDTA. According to the invention, the blood DNA extraction kit only needing one-step washing by using the magnetic bead method is constructed by preparing the washing solution containing high-concentration sodium bicarbonate (the alkalinity is slightly stronger than that of sodium acetate and sodium chloride), simultaneously giving consideration to ion balance and providing alkalinity, and cooperatively using a zwitterionic detergent CHAPS.

The invention relates to oxygen-containing concentrated plant-charcoal washing powder. The oxygen-containing concentrated plant-charcoal washing powder consists of the following materials in parts by weight: 15-35 parts of percarbamide, 3-5 parts of fatty alcohol-polyoxyethylene ether, 1-8 parts of dodecyl dimethyl betaine BS-12, 10-30 parts of sodium carbonate, 15-20 parts of sodium sulfate, 0.5-5 parts of sodium sulfonate fatty acid methyl ester, 8-15 parts of plant-charcoal particles, 4-12 parts of lauric acid, 5-10 parts of coconut oil powder and 10-15 parts of sodium silicate, wherein particle diameter of the plant-charcoal particles is 500-1000 meshes. The oxygen-containing concentrated plant-charcoal washing powder provided by the invention overcomes the defect that the common washing powder is high in energy consumption, poor in solubility, high in alkalinity as well as high in storage and transportation cost, and has effects of being strong in dirt-removing power, high-power in concentration, neutral and mild, sterilizing and bleaching, preventing static electricity, saving water, easily bleaching, and the like.

The invention discloses a betaine-type amphoteric surfactant and a preparation method thereof. The preparation method of the betaine-type amphoteric surfactant comprises the following steps: 1) amidation reaction: under the action of a catalyst, natural oil acid and 3‑ Dimethylaminopropylamine is subjected to amidation reaction, and the water generated by the reaction is removed in time by using 4A molecular sieves to obtain alkylamidopropyl dimethyl tertiary amine; 2) quaternization reaction: alkylamidopropyl dimethyl tertiary amine Perform quaternization reaction with sodium chloroacetate in a solvent to obtain a betaine-type amphoteric surfactant. The amphoteric surfactant group of the invention contains amide bonds, which changes the performance of the molecule, has better foam stability, mild performance, and its emulsifying performance is obviously better than that of the lauryl betaine surfactant. The preparation method of the invention has simple process, low production cost, green and natural raw materials, and absorbs water produced in the amidation reaction process through 4A molecular sieves, thereby improving the yield.