CAJ | 학술논문

将纳米级白炭黑填充于PDMS制备了白炭黑填充PDMS/PVDF复合膜，采用红外（FT-IR）、热失重（TGA）和接触角（CA）等方法对填充复合膜进行了分析和表征，并采用纳滤的方法系统研究了复合膜对大豆油/己烷混合油的分离性能。结果表明，白炭黑填充能有效促进PDMS的交联，提高PDMS的疏水性、热失重温度以及对溶剂的稳定性；白炭黑填充量增加使复合膜渗透通量降低，但截留率从96%提高到98%；随溶液浓度增加，渗透通量和截留率同时降低；随温度的升高，渗透通量上升，截留率降低。大豆油和己烷在膜中的传质特性可用不完全的溶解-扩散模型描述，溶液渗透压实验值与计算值符合较好。
장납미급백탄흑전충우PDMS제비료백탄흑전충PDMS/PVDF복합막，채용홍외（FT-IR）、열실중（TGA）화접촉각（CA）등방법대전충복합막진행료분석화표정，병채용납려적방법계통연구료복합막대대두유/기완혼합유적분리성능。결과표명，백탄흑전충능유효촉진PDMS적교련，제고PDMS적소수성、열실중온도이급대용제적은정성；백탄흑전충량증가사복합막삼투통량강저，단절류솔종96%제고도98%；수용액농도증가，삼투통량화절류솔동시강저；수온도적승고，삼투통량상승，절류솔강저。대두유화기완재막중적전질특성가용불완전적용해-확산모형묘술，용액삼투압실험치여계산치부합교호。
Nano white carbon black particles filled PDMS/PVDF composite membranes were prepared, and FT-IR, TGA and contact angle were used to characterize the physical and chemical characteristics of the composite membranes. By using soybean/hexane miscellas, the separation performance of the composite membranes was systematically investigated. The results indicated that by filling white carbon black to PDMS, the crosslinking density was promoted, and the hydrophobicity, thermal stability and solvent resistance were improved. The permeate flux was declined with increasing filling content of white carbon black, while the oil retention was risen from 96%to 98%. With the increase of oil concentration, both of the permeate flux and oil retention were declined. With increasing feed temperature, the permeate flux was risen while the oil retention was declined. Mass transfer characteristics of soybean oil and hexane through the membrane can be described by the solution-diffusion with imperfections model, and the experimental values of the micelle osmotic pressure were well in accordance with calculated values.