Centrifugal tester versus a novel design to measure particle adhesion strength and investigation of effect of physical characteristics (size, shape, density) of food particles on food surfaces

Food Powders: Properties and Characterization

“…Adhezyon, granül yap›daki g›da tozlar› partiküllerinin içerisinde bulundu¤u depo ünitesinin, ambalaj›n, tafl›ma bantlar›n›n ve/veya g›da maddelerinin yüzeylerine yap›flmas›d›r (10). Partiküller aras› oluflan s›v› ve kat› köprüleri, van der Waals, elektrostatik ve manyetik çekim kuvvetleri gibi yüzey ve alan kuvvetleri nedeniyle adhezyon kuvvetti oluflur (10,23,30). Ayr›ca fiziksel olarak kenetlenme sonucu da adhezyon görülebilir (31).…”

“…Tozlar ile yüzeyler aras›ndaki adhezyon, birçok teknolojik alanda ve g›da proseslerinde (toz kaplama gibi) önemli rol oynar (29). Tozlar›n g›da yüzeylerine yap›flmas›n›n iyi anlafl›lmas› ile çevre kirlili¤inin azalt›lmas›, ifllem verimlili¤inin art›r›lmas›, toz kay›plar›n›n azalt›lmas› ve endüstriyel hijyen kalitesinin art›r›lmas› konular›nda iyilefltirmeler yap›labilir (29,30). Kohezyon ve adhezyon kuvvetlerinin iyi anlafl›lmas›, üretimde kullan›lan alet/ekipmanlarda oluflan afl›nma, y›pranma ve çatlama gibi olumsuzluklar›n azalt›lmas›na yard›mc› olabilir (28,29).…”

“…için) ve ekonomik kay›plar (yüzeylerde birikmeler sonucu üretim kapasitesinin düflmesi, sanitasyon sorunlar› vb.) söz konusu olaca¤›ndan yüzeylere yap›flman›n en az seviyede olmas› istenir (30,31).…”

Adhesion Behavior of Underground Coal Dust with Fused Silica: Effects of Relative Humidity and Particle Size

“…The adhesion of small particles to materials exists in multiple domains, such as the photovoltaic industry [9,10], the food industry [11], the pharmaceutical industry [12], marine mining [13,14], the nuclear industry [15], and indoor air quality monitoring [16], and has been extensively studied. Moutinho et al [9] studied the effect of surface roughness and relative humidity (RH) on the adhesion force between dust particles and solar glass using atomic force microscopy (AFM).…”

“…Quan and Zhang [10] investigated the anti-dust effect of hydrophobic coatings and showed that the low surface energy and rough surface structure of hydrophobic coatings together lowered the adhesion forces. Ermis et al [11] studied the adhesion of salt and glass particles to a crisp surface and wood-chip surface using an impact adhesion tester and centrifugal tester. The results showed that particles of medium size had greater adhesion strength than those of small and large sizes, and the material and the roughness of the surface of the substrate had an influence on the adhesion force.…”