『Apparently invisible. Chemistry in ceramics.』のカバーアート

Apparently invisible. Chemistry in ceramics.

Apparently invisible. Chemistry in ceramics.

著者： Zschimmer & Schwarz Ceramco
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このコンテンツについて

 Aware of how complex the problems related to the world of chemistry applied to ceramic production processes can be, we want to share our knowledge with those who want to orient themselves or train for passion or profession.
Through a simple and direct language, the podcast aims to be an educational space with a focus on products, applications and processes.
The journey unfolds along the ceramic production lines.
At each stage a topic.
At each topic a critical issue.
At each critical issue, when possible, a solution.Zschimmer & Schwarz Ceramco 化学 教育 科学
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  • Reverse Osmosis: problems and solutions in water treatment

    Reverse Osmosis: problems and solutions in water treatment
    2025/05/12
    Water is one of the most widely used natural resources in numerous applications and across various sectors of industrial production.

    For example, process water forms the basis of different production phases and ensures their proper development.

    However, not all waters are the same.

    Depending on its source, water can have very different properties, which may make it suitable or unsuitable for a specific process.

    In general, water quality is often a necessary precondition.

    For this reason, there are various processes capable of purifying water efficiently and, most importantly, safely.

    One of the most widespread and commonly used methods is reverse osmosis.
    続きを読む 一部表示
    15 分
  • Suspending agents: nature, function, and chemical-physical principles

    Suspending agents: nature, function, and chemical-physical principles
    2025/04/28
    Suspending agents belong to a broad category of additives whose primary purpose is to provide ceramic suspensions (slips, glazes, engobes, or frits) with good internal stability, counteracting potential sedimentation phenomena.

    Available in both liquid and solid forms, these products act within the suspension to ensure the right balance.

    There are various mechanisms that can be employed to properly maintain the solid phase of the mixture in suspension.

    Among these, the most significant are about viscosity, electrostatic repulsion, and concentration (solid/liquid ratio).

    This episode, after reviewing the properties of suspending agents, focuses on these three main tools, delving into the reasons and mechanisms behind each, also considering the application systems through which suspensions are deposited onto the ceramic substrate—a detail that can significantly influence the type of suspending agent to be used.
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    20 分
  • Complexing agents and ceramic production: what they are and how they work

    Complexing agents and ceramic production: what they are and how they work
    2025/04/14
    Complexing agents are capable of catching multivalent cations present in suspension to prevent them from negatively affecting the ceramic process.

    They are responsible for one of the main mechanisms underlying the deflocculation process: complexation.

    Complexing agents (or chelating agents) are chemicals that bind to specific ions (such as calcium, magnesium, iron, etc.), forming stable complexes.

    This property allows them to "sequester" metals, making them less reactive or preventing their precipitation in solutions.

    These are simplified and very short descriptions of this particular category of additives.

    The episode takes a closer look at the mechanisms enacted by these substances within the ceramic production process, highlighting their functions, benefits, and sometimes, risks.
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    15 分

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