Inter-particle coating variability in a rotary batch seed coater

Pasha, Mehrdad; Hare, Colin; Ghadiri, Mojtaba; Gunadi, Alfeno; Piccione, Patrick M.

doi:10.1016/j.cherd.2017.01.033

Cited by 13 publications

(5 citation statements)

References 23 publications

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“…We designate samples consisting of the polymer matrices mixed with the active ingredients as coating A, B, and C. The complete commercially available information on the coating compositions is presented in the Supporting Information. Table S1 contains information for coating A, Table S2 contains information for coating B, and Table S3 contains information for coating C. The coatings were mixed and applied using standard agricultural procedures. ,− All the coatings were examined on a commercially available indium tin oxide (ITO)-coated glass surface (Bruker, Billerica, MA) to eliminate additional sources of error such as inhomogeneity in the mechanical properties of the corn seeds. In addition, polymer matrices for all three coatings (without active ingredients) have been deposited in the same manner and analyzed as well.…”

Section: Methodsmentioning

confidence: 99%

Multimodal Chemical Imaging for Linking Adhesion with Local Chemistry in Agrochemical Multicomponent Polymeric Coatings

et al. 2019

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Seed coatings improve germination and offer higher crop yields through a blend of active ingredients (such as insecticides and fungicides), polymers, waxes, fillers, and pigments. To reach their full potential, fundamental formulation challenges bridging structure and function need to be addressed. In some instances, during industrialvolume packing and transportation, coated seeds do not flow well through elevators, conveyers, and applicators, which may reduce yield and add cost. In this work, we illustrate a combinatorial chemical imaging approach to study seed coatings at the microscale to link chemical and physical properties responsible for low seed flowability. The local chemical composition was examined using time-of-flight secondary ion mass spectrometry (ToF-SIMS) and at comparable length scales, the local adhesive properties were examined using atomic force microscopy (AFM) force volume mapping. The link between the chemical and the adhesive properties was established by non-negative matrix factorization (NMF). The correlative multimodal imaging approach developed here utilizing AFM force volume mapping, ToF-SIMS chemical mapping, and data analytics offers a path for linking function with localized chemistry when investigating multicomponent soft material systems.

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Section: Methodsmentioning

confidence: 99%

Multimodal Chemical Imaging for Linking Adhesion with Local Chemistry in Agrochemical Multicomponent Polymeric Coatings

et al. 2019

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“…During the bench test of the seed-metering device, it was impossible to precisely investigate the seed filling effect and the bud seed-breakage mechanism, while the coupled simulation technology of the EDEM and ADAMS software can visualize and analyze the motion state and force effect of the bud seed in the seeding process. The degree of bud damage is closely connected to the rotation speed of the seed-metering device and is independent of the seeding height and angle [36]. In summary, a single-factor test needs to be conducted, with rotation speed as the test factor.…”

Section: Test Contentmentioning

confidence: 99%

Mechanism Analysis and Experimental Verification of Side-Filled Rice Precision Hole Direct Seed-Metering Device Based on MBD-DEM Simulations

Wang,

Yao,

et al. 2024

Agriculture

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In order to solve the problems of poor hole-filling performance and the high seed-breakage rate of conventional rice bud seed precision hole direct seed-metering devices, a side-filled rice precision hole direct seed-metering device was developed, and the mechanism and force analyses for seeding operations were carried out. The key factors affecting seeding quality were determined: rotation speed, seeding angle and seeding height. By coupling the discrete element method (DEM) and multi-rigid body dynamics (MBD), the seed breakage rate and seeding performance at different rotation speeds were analyzed. Single-factor bench testing was used to analyze the effect of a duckbill unit on seeding performance under different factor levels. The three-factor and five-level quadratic regression orthogonal rotation center combination test methods were used to obtain the optimal working parameter combination. The test results showed that when the rotation speed was 47 r/min, the seeding angle was 19°, and the seeding height was 180 mm, the qualified index of seeding was 92.03%, the hole diameter qualified index was 91.62%, and the hole distance variation index was 7.17%. This study provides a reference for the research of mechanical rice sprouting seed-metering devices.

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“…This process is affected by several factors such as seed shape, surface texture, property of chemical agent and coating vessel configuration. The seeds are mixed with a coating agent in a batch coater whose geometry is shown as in Figure 4 More details on coater geometry, coating variability, and relevant studies have been summarised [23].…”

Section: Model Applicationmentioning

confidence: 99%

A stochastic modelling approach for the characterisation of collision exchange processes

Huang

Cattani

Piccione

et al. 2022

Chemical Engineering Science

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Inter-particle coating variability in a rotary batch seed coater

Cited by 13 publications

References 23 publications

Multimodal Chemical Imaging for Linking Adhesion with Local Chemistry in Agrochemical Multicomponent Polymeric Coatings

Multimodal Chemical Imaging for Linking Adhesion with Local Chemistry in Agrochemical Multicomponent Polymeric Coatings

Mechanism Analysis and Experimental Verification of Side-Filled Rice Precision Hole Direct Seed-Metering Device Based on MBD-DEM Simulations

A stochastic modelling approach for the characterisation of collision exchange processes

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