Particle size analysis by laser diffraction in organic pigment technology

1997 ◽  
Vol 31 (3) ◽  
pp. 223-228 ◽  
Author(s):  
M McGarvey ◽  
D McGregor ◽  
R.B McKay
Keyword(s):  
Particle Size ◽  
Particle Size Analysis ◽  
Laser Diffraction ◽  
Size Analysis ◽  
Organic Pigment

scholarly journals Multifunctional hyperbranched polyester grafted β-cyclodextrin metal complexes for textile coating

2020 ◽  
Vol 10 (4) ◽  
pp. 6000-6006
Keyword(s):  
Antimicrobial Activity ◽  
Particle Size ◽  
Metal Binding ◽  
Particle Size Analysis ◽  
Diffusion Method ◽  
Size Analysis ◽  
Distribution Analysis ◽  
Organic Pigment ◽  
Escherichia Coli Bacteria ◽  
Cellulosic Fabric

This study approached the developing of grafted beta cyclodextrins (β-CD) for achievement multifunctional properties. Hyperbranched bis-MPA-polyester-16-hydroxyl, generation 2, (HBPE-2) was used as crosslinker in the presence of cobalt (Co) or nickel (Ni) acetate using emulsion technique. The resulting materials were applied in the printing paste for in situ printing of cellulosic fabrics using phthalocyanine organic pigment (C.I: pigment blue 15:3). Fourier transform infrared spectroscopy (FTIR), transmission electron microscope (TEM) and particle size distribution analysis using dynamic light scattering (DLS) technique were examined to illustrate the structure and morphologies of the prepared materials. Moreover, the antimicrobial activity against gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria using the agar diffusion method was also carried out. The FTIR results demonstrated that HBPE-2 can serve as a good crosslinker to obtain the grafted β-CD with high thermal stability and physical attachment relative to the uncrosslinked one. Also, TEM and particle size analysis indicated that successful metal binding to the grafted β-CD was obtained with different morphologies and low particle size relative the uncrosslinked one. All the grafted β-CD samples exhibited good antimicrobial activity up to 20 mg concentration. Besides, the prepared materials accelerated the colour fixation on the surface of the cellulosic fabric prints relative to the used conventional pigment printing under the unfavorable conditions.

scholarly journals Adequacy of laser diffraction for soil particle size analysis

PLoS ONE ◽  
2017 ◽  
Vol 12 (5) ◽  
pp. e0176510 ◽  
Author(s):  
Peter Fisher ◽  
Colin Aumann ◽  
Kohleth Chia ◽  
Nick O'Halloran ◽  
Subhash Chandra
Keyword(s):  
Particle Size ◽  
Particle Size Analysis ◽  
Laser Diffraction ◽  
Soil Particle ◽  
Size Analysis ◽  
Soil Particle Size

Particle size analysis by laser diffraction

2004 ◽  
Vol 232 (1) ◽  
pp. 63-73 ◽  
Author(s):  
Simon J. Blott ◽  
Debra J. Croft ◽  
Kenneth Pye ◽  
Samantha E. Saye ◽  
Helen E. Wilson
Keyword(s):  
Particle Size ◽  
Particle Size Analysis ◽  
Laser Diffraction ◽  
Size Analysis

Size Reduction of Clay Particles in Nanometer Dimensions

2002 ◽  
Vol 740 ◽  
Author(s):  
Gopinath Mani ◽  
Qinguo Fan ◽  
Samuel C. Ugbolue ◽  
Isabelle M. Eiff
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Specific Surface ◽  
Size Distribution ◽  
Research Work ◽  
Particle Size Analysis ◽  
Laser Diffraction ◽  
Size Analysis ◽  
Clay Particles ◽  
Nano Size

ABSTRACTThis research work focuses on combining ball milling and ultrasonication to produce nano-size clay particles. Our work also emphasizes on increasing the specific surface area of montmorillonite clay particles by reducing the particle size to nanometer dimensions. We have characterized the as-received clay particles by using particle size analysis based on laser diffraction and found that the size of the clay particles is not consistent and the particle size distribution is very broad. However, after the unique treatment and processing, the clay particles were obtained in nanometer dimensions with narrowed particle size distribution.

scholarly journals Particle size distributions by laser diffraction – Part 1: Sensitivity of granular matter strength to analytical operating procedures

2009 ◽  
Vol 1 (1) ◽  
pp. 93-141 ◽  
Author(s):  
F. Storti ◽  
F. Balsamo
Keyword(s):  
Particle Size ◽  
Carbonate Platform ◽  
Granular Matter ◽  
High Strength ◽  
Particle Size Analysis ◽  
Laser Diffraction ◽  
Size Analysis ◽  
Pump Speed ◽  
Strength Material ◽  
Set Up

Abstract. We tested laser diffraction particle size analysis in poorly coherent carbonate platform cataclastic breccias and unfaulted quartz-rich eolian sands, representing low- and high-strength granular materials, respectively. We used two different instruments with different sample dispersion and pumping systems and several wet and dry analytical procedures that included different pump speeds, measure precision tests with and without sample ultrasonication, and different dispersant liquids. Results of our work indicate that high strength material is not strongly affected by analytical operating procedures, whereas low strength material is very sensitive to the pump speed, ultrasonication intensity, and measurement run time. To reduce such a data variability, we propose a workflow for analytical tests preliminary to the set up of the most appropriate SOP.

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