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本文研究了用μv—辐照(λ=2540.0528×10~(-3)cm~3/cm~2.sec.nm.)醋酸纤维素中空纤维膜(CAHM),将苯乙烯接枝于CAHM并用于反渗透。膜的通量可达0.0528×10~(-3)cm~3/cm~2·sec.比热收缩的CAHM的通量(0.0150×10~(-3)cm~3/cm~2sec.)要高,用低盐度水,在10kg/cm~2压力下膜的脱盐率为90.5%,与热收缩CAHM相近,而比原CAHM的脱盐率(80%)为高。并报告了抗压密实验结果。表明uv-接枝改进了膜的表皮层结构,增加了聚合物的抗蠕变强度,换句话说,稳定了通量和增加了脱盐性能。
In this paper, the cellulose acetate hollow fiber membrane (CAHM) with μv-irradiation (λ = 2540.0528 × 10 -3 cm -3 / cm -2.sec.nm) was used to graft styrene onto CAHM In reverse osmosis. Membrane flux was up to 0.0528 × 10 -3 cm -3 / cm 2 · sec. The specific heat flux of CAHM was 0.0150 × 10 -3 cm -3 / cm 2 sec. In the case of low salinity water, the membrane desalination rate was 90.5% under the pressure of 10 kg / cm ~ 2, which was close to that of the heat shrink CAHM and higher than that of the original CAHM (80%). And reported the results of the compression test. It is shown that uv-grafting improves the membrane’s epidermal structure, increases the creep strength of the polymer, in other words, stabilizes the flux and increases desalination performance.