Composite mesoporous film of PETP (polyethylene glycol terephthalate) as well as preparation method and application thereof

A technology of polyethylene terephthalate and ethylene glycol phthalate film, which is applied in the field of film materials, can solve the problems of high cost, poor film flexibility, easy cracking, etc., and achieve good acid and alkali resistance , good flexibility and high cost

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A technology of polyethylene terephthalate and ethylene glycol phthalate film, which is applied in the field of film materials, can solve the problems of high cost, poor film flexibility, easy cracking, etc., and achieve good acid and alkali resistance , good flexibility and high cost

CN102228808BInactive Publication Date: 2013-06-19SHANGHAI INST OF TECH

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Embodiment 1

[0049] Preparation of polyethylene terephthalate composite mesoporous membrane assembled with mesoporous materials with a pore diameter of 3.0 nm

[0050] Mix 7.68g of absolute ethanol, 11.57g of tetraethyl orthosilicate and 1ml of hydrochloric acid (2.8mmol / L), stir slowly, condense and reflux for 90min in a water bath at 60°C; then add 15g of absolute ethanol, 1.52 g hexadecyltrimethylammonium bromide (CTAB), 4ml hydrochloric acid (55mmol / L) mixed solution, stirred and reacted at room temperature 25°C for 30min, cooled to room temperature 25°C to obtain a precursor containing CTAB liquid. Using a suction filtration pump (manufactured by Shanghai Mosu Scientific Equipment Co., Ltd., HPD-25 oil-free filtration pump) and a standing suction filtration device in the laboratory (1000ml suction filtration bottle), divide 4ml of the precursor solution (containing CTAB) into two (2ml each time) filter through a polyethylene terephthalate membrane (produced by Shanghai Haoxia Nuclear...

Embodiment 2

[0059] 0.04 mg / ml rhodamine B aqueous solution and 0.04 mg / ml horseradish peroxidase aqueous solution were respectively placed in the molecular transfer device equipped with the polyethylene terephthalate composite mesoporous membrane of the present invention. The photo of molecular transfer of final rhodamine B aqueous solution and 0.04 mg / ml horseradish peroxidase aqueous solution is attached Figure 6 , as shown in 7. from Figure 6 , 7 It can be seen that the red rhodamine dye molecule can pass through the polyethylene terephthalate composite mesoporous membrane from one end to the other end, but the light brown horseradish peroxidase molecule cannot pass through from one end. The polyethylene terephthalate composite mesoporous membrane transmits to the other end.

[0060] Using UV-visible spectrophotometry (Carry100 UV-visible spectrophotometer, Varian Company, USA) to investigate the rhodamine B dye molecules (molecular size3.0nm) in the aqueous solution were assemble...

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Abstract

The invention discloses a polyethylene terephthalate composite mesoporous membrane, a preparation method and application thereof, and belongs to the field of membrane materials. That is, the mesoporous material silica is assembled in the polyethylene terephthalate film to form a composite mesoporous film. The preparation method is to assemble the inorganic mesoporous material in the holes in the polyethylene terephthalate membrane by suction filtration to obtain a composite mesoporous membrane, and then remove the intermediary of the composite membrane by extraction and elution. The surfactant in the porous material is used to obtain a polyethylene terephthalate composite mesoporous membrane. The preparation method of the present invention has the characteristics of simplicity and rapidity. In addition, the polyethylene terephthalate composite mesoporous membrane can be applied not only to size-selective molecular transfer and separation in aqueous solution but also to Size-selective ion transfer at liquid / liquid interfaces, etc.

Description

technical field [0001] The invention relates to a polyethylene terephthalate composite mesoporous membrane, a preparation method thereof and an application of the composite membrane, belonging to the field of membrane materials. Background technique [0002] With the wide application of mesoporous materials in the fields of catalytic chemistry and petrochemical industry, the research of assembling mesoporous materials in porous alumina membranes to form inorganic composite mesoporous membranes has attracted people's attention in recent years. "Self-assembly of a silica–surfactant nanocomposite in a porous alumina membrane" published in the British "Nature Materials" magazine, No. 3, 2004, discloses a method for assembling one-dimensional mesoporous carbon dioxide in porous alumina membranes. A method for preparing inorganic composite mesoporous membranes from silicon rods. However, the disadvantages of this inorganic composite mesoporous membrane are: the cost of the porou...

Claims

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Application Information

Patent Timeline

19 Jun 2013

Publication

CN102228808B

IPC: B01D71/48; B01D69/12; B01D67/00; B01D61/00

Inventors: 陈勇; 吴宏庆