Surfynol 104PG-50

Nonionic acetylenic diol

Air Products

ÏûÈ¥ÅÝÄ/·ÀÄ¼Á >> ÎÞ¹è >> ±íÃæ»îÐÔ¼Á&Ö¬·¾Ëá Defoamer / Antifoaming agent >> Silicone-free >> Surfactant & Fatty acid ÈóÊª¼Á/±ßÔµÈóÊª´Ù½ø¼Á >> ±íÃæ»îÐÔ¼Á Wetting agent/ Wet edge enhancer >> Surfactant Í¿²ã >> Ë®Éú Coatings >> Waterborne Propylene glycol Surfynol 104PG-50 surfactant, wetting agent and defoamer composed of 50% Surfynol 104 and 50% propylene glycol. A nonionic acetylenic diol surfactant that has multifunctional benefits, including wetting and foam control, in aqueous systems. Due to its hydrophobic nature, the product has reduced water sensitivity when compared to conventional surfactants. Surfynol 104 surfactant complies with certain FDA regulations. In addition to Surfy¯nol 104 surfactant solvent blends, other members of the Surfy¯nol surfactant product line include ethoxylated analogs (Surfy¯nol 420, 440, 465, 485, and 485W surfactants) and the Surfy¯nol DF-110 defoamer series (Surfy¯nol DF-110L and DF-110D defoamers). The benefits brought to water-based formulations containing Surfy¯nol surfactants include: improved wetting (due to reduced surface tension), defoaming/deairentraining, reduced viscosity and improved color development. The efficiency of Surfy¯nol 104 and Surfy¯nol 400 surfactants as surface tension reducers and the efficiency of Surfy¯nol 104, Surfy¯nol 400 series and Surfy¯nol DF-110 surfactants as defoamers stem in part from their limited solubility in water (see Table 1). When formulated into systems, Surfy¯nol surfactants are most often used at levels well above their solubility limitations in pure water. Use levels can range from 0.05 to 3% due to the following: Surfactant-based systems containing micelles can solubilize Surfy¯nol surfactants. Surfy¯nol surfactants in heterogeneous systems, such as dispersions and latexes, will be absorbed at the interface between the continuous and discontinuous phase. Therefore, in order to ensure that Surfy¯nol surfactants are properly incorporated into systems, the following should be considered and adhered to when appropriate: ? Maintain adequate agitation and allow mix times of at least 15¨C30 minutes. ? In a formulation or mix procedure, add Surfy¯nol surfactants last, especially after other surface active materials have been added. This will allow the maximum rate of dissolution or dispersibility of Surfy¯nol surfactants into the system. However, if addition of a Surfy¯nol surfactant causes an undesirable viscosity rise, try adding the Surfy¯nol surfactant as early as possible in the formulation. Viscosity can act as a barrier to surfactant incorporation. Therefore, add system components that will tend to lower viscosity before adding Surfy¯nol surfactants. Add any viscosity increasing ingredients after mixing Surfy¯nol surfactants into the formulation. Also, maintain an elevated system temperature, provided that this will not have a deleterious effect on the system. This will assist in the incorporation of the surfactant. Utilize a liquid version of the appropriate Surfy¯nol surfactant wherever possible . If 100% active Surfy¯nol 104 surfactant (melting point 45°C) or Surfy¯nol DF-110 defoamer (melting point 60°C) is necessary, it should be melted before use. Surfy¯nol surfactants should never be added in the solid form due to the difficulty of incorporation. Optimal concentration levels should be determined by running a ladder study. Handling Some Surfy¯nol surfactants may separate upon exposure to freezing temperatures. This does not affect subsequent performance. If separation occurs, warm to room temperature and stir to reincorporate the materials. Improves wetting (due to reduced surface tension), defoaming, deairentraining, reduces viscosity and improves color development. Reduces water sensitivity when compared to conventional surfactants due to its hydrophobic nature. Recommanded usage level: from 0.05 to 3%. In a formulation or mix procedure, add it last, especially after other surface active materials have been added. This will allow the maximum rate of dissolution or dispersibility of it into the system. However, if its addition causes an undesirable viscosity rise, try adding it as early as possible in the formulation. Viscosity can act as a barrier to its incorporation. Therefore, add system components that will tend to lower viscosity before adding it. Add any viscosity increasing ingredients after mixing it into the formulation. Also, maintain an elevated system temperature, provided that this will not have a deleterious effect on the system.