本文選題：核孔膜　切入點(diǎn)：雙錐型孔道　出處：《天津工業(yè)大學(xué)》2017年碩士論文

【摘要】：利用蘭州重離子加速器提供的25MeV·u~(-1) ~(86)Kr~(26+)離子輻照厚度為12μm-25μm 的聚對(duì)苯二甲酸乙二酯(Poly(ethylene terephthalate),PET)薄膜,注量為 2×10~5ions·cm~(-2)、1×10~6ions·cm~(-2)、1.5×10~7ions·cm~(-2)和 5×10~7ions·cm~(-2)等。將輻照后的PET薄膜浸入不同溫度、濃度的NaOH溶液蝕刻,制得不同孔徑大小和不同孔型的核孔膜樣品。分析了測(cè)厚法、光學(xué)顯微鏡觀察法和泡點(diǎn)法三種孔徑測(cè)量法的優(yōu)劣。通過(guò)實(shí)驗(yàn)和模擬針對(duì)直筒孔型和雙錐孔型樣品進(jìn)行過(guò)濾效果和污染程度比較,并分析檢驗(yàn)過(guò)濾后水樣的細(xì)菌含量。結(jié)果表明,對(duì)于孔徑小于11μm的納米孔徑核孔膜,適合利用泡點(diǎn)分析法測(cè)量有效截留孔徑,測(cè)量誤差小于5%;對(duì)于孔徑大于3μm的微米孔徑或直筒孔核孔膜,優(yōu)先選擇光學(xué)顯微鏡觀察法測(cè)量表面孔徑,測(cè)量誤差小于10%。與常規(guī)孔道相比,雙錐型孔道在相同條件下可大大增加液體的通量,提高了過(guò)濾速率。并且根據(jù)理論分析,其抗污染能力也較強(qiáng)。內(nèi)徑450nm的核孔膜不僅能分離水樣中的大顆粒物,有效降低水樣的色度和濁度,還能有效分離水樣中絕大部分細(xì)菌,說(shuō)明450nm的核孔膜可以將細(xì)菌完全分離。這對(duì)醫(yī)療衛(wèi)生等領(lǐng)域有非常重要的作用。
[Abstract]:The irradiated PET thin films with a thickness of 12 渭 m ~ 25 渭 m were irradiated by the 25MeV U ~ ((1) ~ (1)) ~ (86) K ~ ((1)) K ~ ((1)) ~ ((1)) and ~ (5 脳 10~7ions) ~ (2) ~ (5 脳 10~7ions) ~ (-1) ~ (1 脳 10~6ions) ~ (1 脳 10~6ions) ~ (1 脳 10~6ions) ~ (1 脳 10~6ions) ~ (-1) and 5 脳 10~7ions ~ (2) ~ (2) ~ (-1) ~ 1 脳 10~6ions ~ (1.5 脳 10~7ions) ~ (-1) ~ (-1) ~ 1 脳 10~6ions ~ (-1) ~ (1 脳 10~7ions) ~ (2)) respectively. The irradiated PET films were etched in NaOH solution at different temperatures and concentrations. The samples of nuclear porous membranes with different pore sizes and different pore types were prepared. The thickness measurement method was analyzed. The advantages and disadvantages of three kinds of aperture measurement methods, optical microscope observation method and bubble point method, were compared by experiments and simulations for the filtration effect and pollution degree of straight tube and double cone hole samples. The bacterial content of the filtered water sample was analyzed and tested. The results showed that the effective interception pore size could be measured by bubble point analysis for the nuclear pore membrane with nanometer pore size less than 11 渭 m. The measurement error is less than 5. For micrometer aperture or straight tube core pore membrane with pore diameter greater than 3 渭 m, optical microscope observation method is preferred to measure surface pore diameter. The measurement error is less than 10. Compared with conventional pore channel, the measurement error is less than 10. Under the same conditions, the bipyramidal channel can greatly increase the flux of liquid and increase the filtration rate. According to the theoretical analysis, its anti-pollution ability is also strong. The nuclear pore membrane with inner diameter 450nm can not only separate the large particles in the water sample, but also increase the filtration rate. It can effectively reduce the color and turbidity of water samples, and can also effectively isolate most of the bacteria in water samples, which indicates that the nuclear pore membrane of 450nm can completely separate bacteria, which plays a very important role in the field of medical treatment and hygiene.
【學(xué)位授予單位】：天津工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TQ028.8;TU991.2

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