Three‑Roller Coating Machine for White Carbon Black Modification
As a procurement manager or process engineer, you know that white carbon black (precipitated or fumed silica) is a high‑value functional filler. Its immense surface area and reinforcing ability can transform ordinary polymers into advanced materials. Yet the same properties that make silica valuable also create two stubborn challenges: agglomeration and poor compatibility with organic matrices. Unmodified silica particles are hydrophilic and tend to form hard hydrogen‑bonded agglomerates. In a silicone rubber compound, these agglomerates become “fish eyes” that weaken the product. In a coating formulation, they cause settling and poor rheology. The solution is surface modification – coating each silica particle with a coupling agent or stearic acid to […]
Stability Control of Grinding Technologies for Cell Culture Media Production
In the field of cell culture medium production, grinding technology plays a crucial role, as it directly affects the quality and performance of the medium, which in turn impacts the final outcome of biopharmaceuticals. The dry powder grinding process is a key factor in determining medium stability. During this process, decisions regarding mixing, grinding, and cooling methods, as well as the setting of technical parameters, all have a significant impact on the performance of the dry powder. Milling involves the use of mechanical force to crush, compress, or grind raw materials to reduce particle size. In cell culture medium production, commonly used milling techniques include ball milling, hammer milling, pin […]
Classifier Wheel Speed Control: Impacts, Balancing & 4 Hidden Pitfalls
In powder processing, the classifier wheel is a key component for controlling the particle size distribution of the final product. The rotational speed of the classifier wheel directly determines the cutoff point for particle separation. This makes it a critical parameter in powder processing. In this article, we will discuss the impact of classifier wheel speed on powder grinding and the common issues currently encountered in this field. Core Principle: The Interplay Between Centrifugal Force and Aerodynamic Force To understand the effect of rotational speed, one must first grasp the working principle of the classifier wheel. It is essentially a high-speed rotating centrifugal screen. When powder particles enter the classification […]
植物繊維改質：粒子サイズとRTMターボミル｜Epic Powder
植物繊維を加工するバイオテクノロジー企業にお勤めの方なら、おそらく次のような疑問をお持ちでしょう。「植物繊維を改質する際に、どのような粒子サイズやその他の仕様を目指すべきでしょうか？」植物繊維は丈夫で熱に弱く、凝集しやすい性質があります。そこでRTMターボミルコーティングシステムが登場します。このシステムは、微粉砕、乾燥、表面コーティングを1台の機械で行います。そして既に、中国、ヨーロッパ、北米の企業が、このシステムを用いて、一貫性のある高品質な改質植物繊維の製造を実現しています。この記事では、以下の内容を取り上げます。バイオテクノロジー用途における植物繊維改質の重要性 植物繊維（セルロース、麻、亜麻、木材繊維など）は、充填剤や強化剤として広く使用されています […]