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舞臺干冰

發布時間:2018-04-27 點擊量:4138

干冰是怎么形成舞臺煙霧

舞臺上干冰煙(干冰小顆粒)遇熱升華/汽化時需要吸收大量的熱量,這導致周圍空氣的溫度降低,空氣中的水蒸氣遇冷凝結,水蒸氣附著在塵埃等小顆粒上凝結成為小水滴,從而產生霧化效果~

干冰起到的作用僅僅是升華/汽化的過程中吸收熱量促使水蒸氣凝結~ 也就是說,水蒸氣凝結出來的霧就是白蒙蒙的,想改變顏色只能通過光照效果……

理論上說,升華/汽化過程中大量吸熱的化學物質都能替代干冰,但是從對演員和觀眾無害的制造方便價格便宜的角度考慮,干冰都是不二的選擇~


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