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Synthesis and characterization of clay filled polysulfone membran: the effect of composition and calcination of clay

机译:粘土填充聚砜膜的合成与表征:粘土组成和煅烧的影响

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摘要

A clay mineral is a potential candidate for the filler of molecular composite since it is a compound of layer silicate. The factors that would have to be considered in choosing clay as filler were cost, availability, physical properties, thermal stability, and chemical resistance. In this paper we attempted to synthesize membrane from polysulfone (PSF), polyethyleneglicol (PEG), N.N-dimethyl acetamide (DMAc) and clay, as main polymer, additive, solvent, and filler respectively. Clay used were from South Lampung, Indonesia, which were identified by XRD; consist of montmorillonite, chabazite, and cliptonilolite. Compositions of dope solution were 4.5 g PS, 4.5 g PEG, 14 g DMAc, while that of clay were 3, 4, 5, and 6 w % PSF. Calcinations temperature were 300, 350, 400 and 450 0C. Membrane was found to be in micro filtration, range with percent rejection of dextran T 500 were 30-48% with permeation of 45.76- 642.18 Lm-2h-1atm-1 for pure water flux and 12.80-501.71 Lm-2h-1atm-1 for dextran T 500, respectively. Composition of Clay 4 wt.% PSF without calcination gave the best properties of membrane.
机译:粘土矿物是分子复合物填料的潜在候选物,因为它是层状硅酸盐的化合物。选择粘土作为填料时必须考虑的因素是成本,可用性,物理性能,热稳定性和耐化学性。在本文中,我们尝试分别由聚砜(PSF),聚乙二醇(PEG),N.N-二甲基乙酰胺(DMAc)和粘土作为主要聚合物,添加剂,溶剂和填料来合成膜。所用粘土来自印度尼西亚南楠榜,经XRD鉴定;由蒙脱石,菱沸石和膨润土组成。涂料溶液的组成为4.5 g PS,4.5 g PEG,14 g DMAc,而粘土的组成为3、4、5和6 w%PSF。煅烧温度为300、350、400和450 0℃。发现膜处于微滤中,葡聚糖T 500的排斥百分率范围为30-48%,纯水通量的渗透率为45.76- 642.18 Lm-2h-1atm-1和12.80-501.71 Lm-2h-1atm-1分别用于右旋糖酐T 500。没有煅烧的粘土4重量%PSF的组合物给出了膜的最佳性能。

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