freeze drying process 中文意思是什麼
freeze drying process
解釋
冷凍乾燥加工-
Study on optimizing process parameter of freeze - drying bananas
凍干香蕉過程參數優化的研究 -
The ratio of isopropyl alcohol and pure water and temperature in the process of freezing are considerated in the research of the preparation of the pt / c electrocatalysts with freeze - drying method. the result shows, when we use 300ml pure water to wash the carbon ( 40mg ) in isopropyl alcohol ( 20ml ) to alter the ratio of isopropyl alcohol and pure water, we get the electrocatalysts with high catalytic activity ; the use of the liquid nitrogen ( - 196 ) to freeze the suspension ( carbon and precursor solution ) can make the pt / c electrocatalysts in high dispersion
採用300ml純水對20ml異丙醇中的40mg碳載體進行洗滌抽濾，來改變預凍液中的醇水比例，通過冷凍乾燥制備pt / c的性能較好;採用液氮對預凍液進行冷凍（預凍溫度為- 196 ）制備的pt / c催化劑性能較好;冷凍乾燥法可以有效地避免加熱乾燥過程中前軀體離子在碳載體表面的脫附和團聚，進而制備載量大、分散性好、粒徑較小的pt / c催化劑。 -
The results indicate that drying thickness, radiant temperature and pressure of drying chamber are the most three significant factors. there ' s hardly any relationship between freezing rate and drying time, the sublimation drying time of slow freezing material is shorter than quick freezing one, but its desorption drying time is relatively longer, so the total drying time is approximately the same. the initial freezing temperature and freezing manner has little influence on vacuum freeze drying process
試驗表明：凍干厚度、加熱板溫度、系統的真空度是最重要的三個過程參數；凍結速率對總凍干時間沒有影響，慢凍物料的升華乾燥時間要比快凍物料短，但慢凍的解析時間相對較長，兩者的總凍干時間相差很小；初始凍結溫度對凍干過程的影響可以忽略。 -
Experimental study on alumina ceramic nanopowder prepared by vacuum freeze - drying process
真空冷凍乾燥法制備納米氧化鋁陶瓷粉的實驗研究 -
Vacuum freeze - drying process of rabbit corneas and the viability assessment of endothelium
兔角膜真空冷凍乾燥工藝及凍干角膜活性檢測 -
The influence of freeze - drying on agglomeration of powder synthesized from liquid phase process
液相法合成粉體中冷凍乾燥對團聚的影響 -
Freeze - drying process develops as a technique for biological pharmacy and later as a means for the preservation of foods
摘要冷凍乾燥技術最早應用於生物制藥和食品加工。
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