Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

PEO flocculation with phenolic microparticles.

Chen Lu1, Robert Pelton

  • 1McMaster Centre for Pulp and Paper Research, Department of Chemical Engineering, McMaster University, Hamilton, Ontario, L8S 4L7, Canada.

Journal of Colloid and Interface Science
|April 19, 2003
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Comparative metabolic safety of efavirenz-, dolutegravir-, and bictegravir-based antiretroviral regimens in HIV-infected adults: Evidence for weight-dependent lipid deterioration.

Journal of infection and public health·2026
Same author

IL-22BP Attenuates Right Ventricular Remodeling in Pulmonary Arterial Hypertension.

Clinical science (London, England : 1979)·2026
Same author

An injectable SFMA/HA-E hydrogel for sustained delivery of hucMSC-derived exosomes promotes myocardial repair after infarction.

Stem cell research & therapy·2026
Same author

Boosted Oxygen Vacancies and Lattice Oxygen Reactivity by Cobalt-Oxygen-Manganese Asymmetric Sites in Cryptomelane for Photoactivated Abatement of Volatile Organic Compounds.

ACS nano·2026
Same author

Editorial: Enhancing sports injury management through medical-engineering innovations.

Frontiers in sports and active living·2026
Same author

Multi-omics profiling identifies HMGA2 fusions as defining a distinct and prognostically favorable subtype of dedifferentiated liposarcoma with rhabdomyosarcomatous differentiation.

Human pathology·2026
Same journal

Oxygen vacancy-mediated photothermal CO<sub>2</sub> methanation over Ni/Ce-Zr solid solution catalysts.

Journal of colloid and interface science·2026
Same journal

Harnessing interfacial synergy between bimetallic nanoparticles and oxygen-deficient oxide nanofibers toward efficient nitrate-to-ammonia electroconversion.

Journal of colloid and interface science·2026
Same journal

Designing CeTiO<sub>x</sub>-based composite encapsulation overlayer on platinum for enhanced methanol steam reforming.

Journal of colloid and interface science·2026
Same journal

In situ dynamic modulation of zero-valent and low-valent copper ratio for constructing stable copper catalysts for acetylene hydrochlorination.

Journal of colloid and interface science·2026
Same journal

Competitive-adsorption-resistant interfacial regulation by 2-mercaptopyridine enables selective copper microvia superfilling.

Journal of colloid and interface science·2026
Same journal

Impact of molecular composition and sequential aqueous-phase exchange on polyglycerol polyricinoleate interfacial behavior.

Journal of colloid and interface science·2026
See all related articles

This study shows that a novel composite microparticle effectively flocculated polystyrene latex and precipitated calcium carbonate (PCC). However, dextran sulfate pretreatment prevented PCC flocculation, highlighting the importance of surface chemistry in colloidal interactions.

Area of Science:

  • Colloid and Surface Science
  • Polymer Chemistry
  • Materials Science

Background:

  • Colloidal dispersions like polystyrene latex and precipitated calcium carbonate (PCC) are ubiquitous in industrial applications.
  • Effective flocculation is crucial for controlling particle behavior, separation, and material properties.
  • Understanding the interaction mechanisms between flocculants and target colloids is key to optimizing processes.

Purpose of the Study:

  • To investigate the flocculation efficiency of a novel composite microparticle for polystyrene latex and PCC.
  • To examine the influence of dextran sulfate pretreatment on PCC flocculation.
  • To elucidate the interaction forces governing the flocculation process.

Main Methods:

  • Sequential addition of poly(ethylene oxide) (PEO) and a polystyrene/poly(p-vinylphenol) composite microparticle.

Related Experiment Videos

  • Preparation of precipitated calcium carbonate (PCC) with and without dextran sulfate pretreatment.
  • Characterization of flocculation behavior and interaction mechanisms.

    • Main Results:

    • The composite microparticle successfully flocculated both polystyrene latex and untreated PCC.
    • Dextran sulfate-coated PCC exhibited resistance to flocculation by the composite microparticle.
    • Electrostatic forces dominated the interaction between the composite microparticle and target colloids.
    • Hydrogen bonding and hydrophobic interactions were identified as key drivers for PEO adsorption onto the composite particles.

    Conclusions:

    • The novel composite microparticle is an effective flocculant for specific colloidal systems.
    • Surface modification, such as dextran sulfate coating, can significantly alter colloidal interactions and prevent flocculation.
    • The study provides insights into the interplay of electrostatic, hydrogen bonding, and hydrophobic forces in composite microparticle-mediated flocculation.