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Hiển thị các bài đăng có nhãn Np9. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn Np9. Hiển thị tất cả bài đăng

Thứ Bảy, 4 tháng 8, 2012

Nonyl Phenol Ethoxylate

tháng 8 04, 2012 0
Nonyl Phenol Ethoxylate

$25.00
Description your product
TERGITOL™ NP Series nonionic surfactants deliver a combination of economy and performance in a wide variety of applications, including cleaning product formulations, paints and coatings, emulsion polymerization, and many others. These NPE surfactants are used anywhere there is a need for increased surface activity, and provide excellent all-purpose detergency and wetting, as well as solubilization and emulsification.
Name : POE nonyl Phenyl Ether; Ethoxylated nonylphenol; Polyoxyethylene Nonylphenyl Ether; nonylphenyl polyethyleneglycol ether, nonionic; macrogol nonylphenyl ether; Polyethylene Mono(nonylphenyl)ether Glycols;
 GENERAL DESCRIPTION & APPLICATIONS :
Nonionic surfactants are surface active agents which do not dissociate into ions in aqueous solutions, unlike anionic surfactants which have a negative charge and cationic surfactants which have a positive charge in aqueous solution. Nonionic surfactants are more widely used as detergents than ionic surfactants because anionic surfactants are insoluble in many hard water and cationic surfactants are considered to be poor cleaners. In addition to detergency, nonionic surfactants show excellent solvency, low foam properties and chemical stability. It is thought that nonionic surfactants are mild on the skin even at high loadings and long-term exposure. The hydrophilic group of nonionic surfactants is a polymerized alkene oxide (water soluble polyether with 10 to 100 units length typically). They are prepared by polymerization of ethylene oxide, propylene oxide, and butylene oxide in the same molecule. Depending on the ratio and order of oxide addition, together with the number of carbon atoms which vary the chemical and physical properties, nonionic surfactant is used as a wetting agent, a detergent, or an emulsifier. HLB (Hydrophilic-Lipophilic Balance) values for proper applications. <10 :="" lipid="" or="" soluble="" water-insoluble="">10 : Water Soluble 4-8 : Antifoaming 7-11 : Water-in-oil emulsion 12-16 : Oil-in-water emulsion 11-14 : Good Wetting 12-15 : Good detergency 16-20 : Stabilizing Nonionic surfactants include alcohol ethoxylates, alkylphenol ethoxylates, phenol ethoxylates, amide ethoxylates, glyceride ethoxylates (soya bean oil and caster oil ethoxylates), fatty acid ethoxylates, and fatty amine ethoxylates. Another commercially significant nonionic surfactants are the alkyl glycosides in which the hydrophilic groups are sugars (polysaccharides). Alcohol ethoxylates, clear to yellowish liquid to waxy solids depending on alkyl chain length and the number of ethoxy groups, are non ionic surfactants which contain both hydrophobic tail portion (alcohol part) and hydrophilic polar head groups (ethoxy chain part), and are thus tend to dissolve in both aqueous and oil phase and to reduce the surface tension of liquids. Ethylene oxide (also called epoxyethane and oxirane) is the simplest cyclic ether or epoxide, with the formula C2H4O; reactive material which is added to the base of alcohols (or amines) to form ethoxylated surfactants. The Hydrophilic-Lipophilic Balance (HLB) of EO surfactant is related to the hydrophilic portion of the molecule. More hydrophilic groups enable more solubility in water as more hydrogen bondings exist. They are non-ionic in solution which has no electrical charge, which means well-work in hard water at low temperatures as well as stability in acid and alkali solution and compatibility with other surfactants. Generally, surfactant's name are formed by adding the mole number of ethylene oxide. There is a wide HLB range depend their molar ratios between nonylphenol and E.O. The common mole ratio forms for detergency are NPE 9 - 12, where the number indicates ethoxylate chain length. The lower number mole ratio products are used as wetting agent whereas the higher moles ratio products are emulsifiers and solubilizer. Nonylphenol ethoxylates features excelent emulsifying and high detergency properties. End applications include; Detergents and Industrial Cleaners, Dispersants, Stabilizers, Sanitizers, Defoaming Agents. Agrochemical Emulsifiers, Metal Working, Textile Processing, Paper De-inking, Drilling Products Intermediate Anionic Surfactants Synthesis, Dust Control, Adhesive, Plastic Industry, Lube Oil, Cosmetic and Pharmaceuticals..