Effect of liquid properties on curtain stability in low flow rate was written by Furukawa, Hiroyasu;Kanai, Hiroshi;Nagase, Magonori;Kobayashi, Ryoji;Alleborn, Norbert. And the article was included in ISIJ International in 2013.Recommanded Product: Ethyl 3-ethoxypropanoate The following contents are mentioned in the article:
Curtain coating, which can achieve very high speed coating and smooth film without defects, is recently used to produce pre-painted steel sheets for home appliances and utensils. One of the difficulties limiting curtain coating operation arises from a low limit in flow rate, below which the falling liquid sheet breaks apart and we can not operate. We measured the min. flow rate for curtain formation for polyester resin solutions in very low Reynolds number (Re) exptl., and found that the min. flow rate decreased with decreasing surface tension and d., and with increasing viscosity of the liquids Relationship between the phys. properties of the liquids and the min. flow rate for curtain formation (curtain stability) was analyzed by using Reynolds number (Re) which represented the flow rate and Phys. property number (Ka) which included surface tension, viscosity and d. As a result, the calculating formula by which the min. flow rate can be estimated was given. Further more, effects of surfactant on the min. flow rate were studied. It is suggested that homogeneity of the surface is very important to stabilize the curtain, and if we use surfactants which decrease surface tension of the liquids uniformly, the curtain stability increases. In the range of this study, curtain stability is mainly dominated by liquid properties, and neither edge guides nor disturbances like bubbles in the liquids seem key factors for curtain stability. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Recommanded Product: Ethyl 3-ethoxypropanoate).
Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Recommanded Product: Ethyl 3-ethoxypropanoate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics