提高泡沫穩(wěn)定性的發(fā)明方法
使用機(jī)械分散機(jī)(Dispermat)混合疏水蛋白，SDS和纖維。分散機(jī)速度可調(diào)，但通常在實(shí)驗(yàn)中使用約3800rpm。研究泡沫體積隨時(shí)間的變化。通過(guò)此設(shè)置，發(fā)泡在1分鐘內(nèi)達(dá)到最大水平。通過(guò)攝影監(jiān)測(cè)泡沫體積的變化，其中每10秒拍攝照片。從照片圖像中，確定達(dá)到50%氣體體積(t50)和66%氣體體積(t66)所需的混合時(shí)間。此外，測(cè)定達(dá)到的最大體積(Omax)。記錄10分鐘測(cè)量泡沫的塌陷率，而每1分鐘拍攝照片。根據(jù)這些數(shù)據(jù)，可以估算泡沫的V /。 V /值描述當(dāng)液體體積達(dá)到其初始高度的一半(排水量)時(shí)停止混合后經(jīng)過(guò)的時(shí)間。
A METHOD FOR INCREASING FOAM STABILITY FIELD OF THE INVENTION
Mechanical mixer (Dispermat) was used to mix hydrophobin, SDS and fibers. Mixer speed was adjustable, but generally about 3800 rpm used in the experiments. Foam volume was studied as a function of time. Foaming reached the maximum level within 1 min with this set-up. The change of foam volume was monitored by photography,where pictures were taken every 10 s. From the photographic images, the mixing times required for reaching 50% gas volume (t50) and 66% gas volume (t66) were determined. In addition, the maximal volume achieved (Omax) was determined.Collapse rate of foam was measured with 10 min recording, whereas pictures were taken every 1 min. From these data V/ for the foam can be estimated. The V/ value describes the time elapsed after cessation of mixing when liquid volume reaches half of its initial height (drainage volume).
