The mean particle diameter is the average particle diameter, calculated by summing the diameters of all particles in a sample and dividing by the total number of particles.
推薦產品
形狀
powder
品質等級
粒徑
35 μm
轉變溫度
Tm 321 °C
密度
2.1 g/mL at 25 °C
應用
battery manufacturing
SMILES 字串
F\C(F)=C(\F)F
InChI
1S/C2F4/c3-1(4)2(5)6
InChI 密鑰
BFKJFAAPBSQJPD-UHFFFAOYSA-N
尋找類似的產品？ 前往 產品比較指南
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
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聚合物电解质膜(PEM)燃料电池可代替轻型车辆的内燃机，减少运输业石油消耗。PEM燃料电池运行效率高，并且可以在低温下运行。
Polymer electrolyte membrane (PEM) fuel cells offer high efficiency and low-temperature operation, reducing oil use in light-duty vehicle transportation.
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What is the exact meaning of the mean particle diameter?
1 answer-
Helpful?
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Mean particle diameter가 35 μm라고 specification sheet에 적혀있는데, 이 기준이 정확히 무엇인지 궁금합니다. 각 particle이 직경 35 μm인 구와 동일한 부피를 가진 것일까요? 아니면, 2D 평면에서의 단면적이 직경 35 μm인 원과 동일한 것일까요? 감사합니다.
1 answer-
The size is determined by a dynamic light scattering technique. This method measures fluctuations in the intensity of scattered light from a sample, which are directly related to the Brownian motion of the particles. Smaller particles move faster, causing more rapid fluctuations in the scattered light. This allows for the calculation of their diffusion coefficient and subsequently their size using the Stokes-Einstein equation.
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