Droplet contact angle affects wetting behavior of binder liquid on the surface of particles [19 ]. The quality and morphology of the final granulated product depends on wetting parameters of the binder. Wettability describes the ability of a liquid to spread over the surface of a solid material. In this study, droplet contact angle was measured by Sessile Drop technique using DataPhysics OCA 15EC device. Urea powder was pelletized and used as a solid surface. Needle (Nordson SNS-D 051/025) with inner diameter of 0.525 mm was used to produce the droplet.
Sns d 051 025
Manufactured by Nordson
Sourced in United States
The SNS-D 051/025 is a laboratory equipment product. It serves a core function, but a detailed description while maintaining an unbiased and factual approach is not available.
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Lab products found in correlation
3 protocols using sns d 051 025
1
Droplet Contact Angle Measurement for Granulation
2
Biomimetic Scaffold Fabrication
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Sodium alginate (CAS no. 9005-38-3), a polysaccharide consisting of mannuronic/guluronic acid (M/G) ratio of 34%/66%, Titanium dioxide (TiO2) nanopowder (21 nm, CAS no. 12188-41-9), β-Tricalcium phosphate (β-TCP) (CAS no. 7758-87-4, >95% pure), was purchased from Sigma Aldrich (Saint Louis, MO, USA, USA). Gelatin (CAS no. 9000-70-8) and Calcium chloride (CaCl2) (CAS no. 10043-52-4, >96% pure) was obtained from CTR Scientific (Control Técnico y Representaciones Scientific, Monterrey, Mexico). Precision tips SNS-D 051/025 were purchased from Nordson (Inner-0.25 mm) (Nordson Corporation, OH, USA).
3
Measuring Surface Tension of Binders
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Surface tension affects the strength of capillary (static) forces [19 ] and liquid bridge between two particles [32 ]. Due to strength of the capillary bond in granulation, a minimum surface tension is required to granulate particles of a certain size [33 (link)]. We determined surface tension of the binder by pendant-drop method using DataPhysics Optical Contact Angle (OCA) 15EC device (DataPhysics Instruments GmbH, Filderstadt, Germany). In this method, a needle (Nordson SNS-D 051/025, Westlake, OH, USA) with inner diameter of 0.525 mm was used to produce a droplet.
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