Real-time Particle Size Analysis Using the Focused Beam Reflectance Measurement Probe for In Situ Fabrication of Polyacrylamide–Filler Composite Materials

AbstractThe online real-time particle size analysis of the microencapsules manufacturing process using the continuous solvent evaporation method was performed using focused beam reflectance measurement (FBRM). In this paper, we use FBRM measurements to investigate the effects of polymer type and compare the size distributions to those obtained using other sizing methods such as optical microscope and laser diffraction. FBRM was also utilized to measure the length-weighted chord length distribution (CLD) and particle size distribution (PSD) online during particle solidification, which could not be done with laser diffraction or nested sieve analysis. The chord lengths and CLD data were taken at specific times using an online FBRM probe mounted below the microparticle. The timing of the FBRM determinations was coordinated with the selection of microparticle samples for particle size analysis by optical microscope and laser diffraction calculation as a reference. For all three produced batches tested, FBRM, laser diffraction, and sieve analysis yielded similar results. Hardening time for the transformation of emulsion droplets into solid microparticles occurred within the first 10.5, 19, 25, 30, and 55 min, according to FBRM results. The FBRM CLDs revealed that a larger particle size mean resulted in a longer CLD and a lower peak of particle number. The FBRM data revealed that the polymer type had a significant impact on microparticle CLD and the transformation process.

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Real-Time Particle Size Analysis Using Focused Beam Reflectance Measurement as a Process Analytical Technology Tool for a Continuous Microencapsulation Process

10.21203/rs.3.rs-490815/v1 ◽

2021 ◽

Author(s):

Muhaimin Muhaimin ◽

Anis Yohana Chaerunisaa ◽

Roland Bodmeier

Keyword(s):

Particle Size ◽

Real Time ◽

Optical Microscope ◽

Particle Size Analysis ◽

Laser Diffraction ◽

Size Analysis ◽

Sieve Analysis ◽

Reflectance Measurement ◽

Focused Beam ◽

Polymer Type

Abstract The online real-time particle size analysis of the microencapsules manufacturing process using the continuous solvent evaporation method was performed using focused beam reflectance measurement (FBRM). In this paper, we use FBRM measurements to investigate the effects of polymer type and compare the size distributions to those obtained using other sizing methods such as optical microscope and laser diffraction. FBRM was also utilized to measure the length-weighted chord length distribution (CLD) and particle size distribution (PSD) online during particle solidification, which could not be done with laser diffraction or nested sieve analysis. The chord lengths and CLD data were taken at specific times using an online FBRM probe mounted below the microparticle. The timing of the FBRM determinations was coordinated with the selection of microparticle samples for particle size analysis by optical microscope and laser diffraction calculation as a reference. For all three produced batches tested, FBRM, laser diffraction, and sieve analysis yielded similar results. Hardening time for the transformation of emulsion droplets into solid microparticles occurred within the first 10.5, 19, 25, 30, and 55 minutes, according to FBRM results. The FBRM CLDs revealed that a larger particle size mean resulted in a longer CLD and a lower peak of particle number. The FBRM data revealed that the polymer type had a significant impact on microparticle CLD and the transformation process.

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In-situ and real-time aggregation size evolution of copper sulfide precipitates using focused beam reflectance measurement (FBRM)

Powder Technology ◽

10.1016/j.powtec.2020.11.038 ◽

2021 ◽

Vol 380 ◽

pp. 205-218

Author(s):

Lorena Barros ◽

Minghai Gim-Krumm ◽

Gabriel Seriche ◽

Michelle Quilaqueo ◽

Claudia Castillo ◽

...

Keyword(s):

Real Time ◽

Copper Sulfide ◽

Reflectance Measurement ◽

Time Aggregation ◽

Size Evolution ◽

Aggregation Size ◽

Focused Beam

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Determination of the intrinsic rate constant and activation energy of CO2 gas hydrate decomposition using in-situ particle size analysis

Chemical Engineering Science ◽

10.1016/j.ces.2004.04.030 ◽

2004 ◽

Vol 59 (14) ◽

pp. 2983-2993 ◽

Cited By ~ 56

Author(s):

Matthew A. Clarke ◽

P.R. Bishnoi

Keyword(s):

Activation Energy ◽

Particle Size ◽

Intrinsic Rate ◽

Particle Size Analysis ◽

Size Analysis ◽

Co2 Gas ◽

Hydrate Decomposition ◽

Intrinsic Rate Constant

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Using real-time particle size analysis to optimise aluminium smelting

Powder Metallurgy ◽

10.1179/174329008x354806 ◽

2008 ◽

Vol 51 (4) ◽

pp. 291-294 ◽

Cited By ~ 2

Author(s):

Are Dyroy ◽

Erik Tveten ◽

Morten Karlsen ◽

Jim Scotland

Keyword(s):

Particle Size ◽

Real Time ◽

Particle Size Analysis ◽

Size Analysis ◽

Aluminium Smelting

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The influence of crystalline structure of cellulose in chitosan-based biocomposites on removal of Ca(II), Mg(II), Fe(III) ion in aqueous solutions

Cellulose ◽

10.1007/s10570-021-03899-3 ◽

2021 ◽

Author(s):

Aleksandra Grząbka-Zasadzińska ◽

Izabela Ratajczak ◽

Katarzyna Król ◽

Magdalena Woźniak ◽

Sławomir Borysiak

Keyword(s):

Particle Size ◽

Composite Materials ◽

Metal Ion ◽

Supermolecular Structure ◽

Absorption Spectrometry ◽

Mechanical Tests ◽

Particle Size Analysis ◽

Polymorphic Form ◽

Size Analysis ◽

Flame Atomic Absorption

AbstractIn this work, the influence of the supermolecular structure of cellulosic fillers in chitosan matrix on the process of adsorption of calcium, magnesium and iron metal ion was analyzed, while using techniques such as: X-ray diffraction, flame atomic absorption spectrometry, FTIR spectroscopy, particle size analysis, and wettability angle. It has been shown that polymorphic form of cellulose significantly affects its particle size. The introduction of cellulosic filler into polymer matrix was responsible for changes in the sorption efficiency of chitosan composites. It was found that materials with nanocellulose II were characterized with the highest efficiency of adsorption. This interesting relationship has not been reported in the literature, yet. It is important especially in terms of designing composite materials with high adsorption capacity. In the presented paper this issue was discussed, taking into account crystallographic aspects as well as changes in the hydrophilicity of the surface of composite materials. Composite materials were also subjected to mechanical tests which showed some interesting increase in tensile strength when compared to the unfilled polymer.

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Preparation of Jasmine Microcapsules and Aroma Finishing of Cotton Fabrics by UV-Curing

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.331.306 ◽

2011 ◽

Vol 331 ◽

pp. 306-309 ◽

Cited By ~ 1

Author(s):

Ning Xu ◽

Dan Yu ◽

Wei Wang

Keyword(s):

Particle Size ◽

Fourier Transform ◽

In Situ Polymerization ◽

Uv Curing ◽

Cotton Fabrics ◽

Particle Size Analysis ◽

Size Analysis ◽

Finishing Process ◽

Curing Method

In this paper, jasmine microcapsule was synthesized by in-situ polymerization and was applied on cotton fabric with UV curing method. The jasmine microcapsule was verified by Fourier transform infrared spectroscopy. Size distribution was evaluated using particle size analysis. The finishing durability was studied by human olfactory sensations and an optimal finishing process was determined. The results suggest that UV curing will be promising for use in aroma finishing.

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