【摘要】：目的通過對一種雙向拉伸聚酯(BOPET)基鍍鋁薄膜表面高壓靜電場中吸附能力的研究,找到提高高壓靜電提取灰塵足跡能力的途徑。方法使用普通提取灰塵足跡用高壓靜電提取儀,對BOPET基鍍鋁薄膜表面施加高壓靜電場,控制電極與鍍鋁薄膜之間的距離,并采用不同粒徑的Si O2顆粒對薄膜在靜電場中的吸附能力進(jìn)行表征。使用光學(xué)顯微鏡、電子顯微鏡、XRD分析技術(shù)及精密分析天平,對薄膜組織結(jié)構(gòu)進(jìn)行了研究,分析了在高壓靜電場環(huán)境中影響薄膜表面靜電吸附能力的原因,并對引起變化的因素進(jìn)行了討論。結(jié)果 BOPET薄膜在靜電場中會向下壓緊物體表面,壓緊和靜電吸附力會隨高壓電極與鍍鋁薄膜表面距離的變化而不同。薄膜對顆粒的吸附能力與其帶電量顯著相關(guān),隨顆粒帶電量的增加,薄膜表面的吸附能力明顯增強(qiáng)。減小電極與薄膜之間的距離可增大薄膜附近的電場強(qiáng)度,是提高其表面靜電吸附能力的有效途徑。結(jié)論 BOPET基鍍鋁薄膜在高壓靜電場中會與其下的地面構(gòu)成平板電容器。靜電場中顆粒所帶電荷的大小與其形狀顯著相關(guān),微米顆粒所帶電荷較多,從而在BOPET薄膜表面的吸附增重率最大。隨電極與薄膜間距離的增加,電場強(qiáng)度降低,顆粒所帶電量同時(shí)減小,吸附增重率迅速降低,15~10 mm的距離為電場對不同顆粒的靜電吸附能力變化最大區(qū)間。
[Abstract]:Aim to find a way to improve the ability of extracting dust footprint on the surface of a biaxially stretched polyester (BOPET) based aluminum film in high voltage electrostatic field. Methods High voltage electrostatic field was applied to the surface of BOPET based aluminum film by using a high voltage electrostatic extractor to extract dust footprint, and the distance between the electrode and aluminum film was controlled. The adsorption capacity of the films in electrostatic field was characterized by Si O 2 particles with different diameters. Using optical microscope, electron microscope, XRD analysis technique and precision analysis balance, the structure of the film was studied, and the reasons that affected the electrostatic adsorption ability of the film surface in the environment of high voltage electrostatic field were analyzed. The factors causing the change are also discussed. Results the surface of BOPET film will be pressed down in electrostatic field, and the compression and electrostatic adsorption force will vary with the distance between the high voltage electrode and the surface of aluminized film. The adsorption ability of the film to the particles is significantly related to the charge of the film. With the increase of the charge of the particle, the adsorption capacity on the surface of the film is obviously enhanced. Decreasing the distance between the electrode and the film can increase the electric field intensity near the film, which is an effective way to improve the electrostatic adsorption ability of the film. Conclusion in high voltage electrostatic field, BOPET-based aluminum-plated film will form a flat capacitor with the ground under it. In electrostatic field, the size of charge carried by particles is significantly related to its shape, and the charge of micron particles is more than that of other particles, thus the adsorption weight gain rate on the surface of BOPET films is the highest. With the increase of the distance between the electrode and the film, the electric field intensity decreases, the electric quantity of the particles decreases simultaneously, and the distance from 15 ~ 10 mm to the adsorption rate decreases rapidly. The range of the electrostatic adsorption ability of different particles is the maximum range of the change of the electrostatic adsorption capacity of the electric field to different particles.
【作者單位】： 新疆警察學(xué)院;中國刑事警察學(xué)院;
【基金】：公安部科技強(qiáng)警基礎(chǔ)工作專項(xiàng)(2017GABJC11) 新疆高等學(xué)校重點(diǎn)項(xiàng)目(XJEDU2014I050)~~
【分類號】：TB383.2

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