Nanjing Chemical Material Corp.

  Polyether polyol is abbreviated as polyether. It is an oligomer whose main chain contains ether bond (—R—O—R—) and the terminal group or side group contains more than 2 hydroxyl groups (—OH). It is prepared by addition polymerization of an initiator (a compound containing an active hydrogen group) with ethylene oxide (EO), propylene oxide (PO), butylene oxide (BO), etc. in the presence of a catalyst. The largest polyether producers are all common polyether polyols. Polyether polyols are produced with glycerol (glycerol) as the initiator and epoxide, by changing the PO and EO addition methods (mixed addition or separate addition), addition ratio, addition order and other conditions.   The main purpose 1. Detergent or defoamer L61, L64, F68 are used to prepare low-foam, high detergency synthetic detergent; L61 and L81 are used as defoamers in the papermaking or fermentation industry; F68 is used as an antifoaming agent in the blood circulation of artificial heart-lung machine to preven

    The main surfactant used in shampoos is to impart a shampoo cleansing action through the washing process. There are many types of such surfactants, but mainly anionic surfactants. Nowadays, the amount of ammonium laureth sulfate (AESA) and (K12A) is also very large. The ammonium salt has a high foaming rate and is less irritating than the sodium salt. Some large brands use ammonium salt as the main surfactant. Sodium laureth sulfate can be used in products for skin and sodium sulphate can be used in soap making.   Currently, the most commonly used shampoo main surfactants are lauryl ether sulfates (abbreviated as AES or SLES) and lauryl sulfates (AS or SLS), sometimes a mixture of the two. China generally uses sodium laureth polyoxyethylene ether sulfate and ammonium laureth polyoxyethylene ether sulfate, but mainly sodium salt.   The advantages of sodium salt 1. The sodium salt is less dependent on the pH of the system. 2. Sodium salt synthesis is easier and more economical. 3. Th