A kind of porous polymer film with controllable nanometer size and its preparation method

A porous polymer and nano-sized technology, which is applied in the field of porous film materials, can solve the problems of difficult control of parameters, large-scale equipment, complex process of nano-sized uniform porous film, etc., and achieve the effect of simple process
CN109593219BActive Publication Date: 2020-10-16SHANGHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI UNIV
Publication Date
2020-10-16

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Abstract

The invention provides a nano-scale controllable porous polymer film, belonging to the technical field of porous film materials. The nano-scale controllable porous polymer film is prepared by the steps of dissolving a polymer into an organic solvent to obtain a polymer solution, coating a glass substrate with the polymer solution in a dripping manner in an environment with the relative humidity of45%-90% so as to obtain a polymer liquid film, and adjusting the temperature of the glass substrate in a temperature range of 3-28 DEG C, so as to obtain the nano-scale controllable porous polymer film. By adjusting the temperature of the glass substrate and the environmental temperature, the agglomeration process of water vapor on the surface of the liquid film and the water drop growth processare commonly controlled, and the nano-scale controllable porous polymer film is prepared, so that the technical problems that the bore diameter, hole depth and porosity of the porous polymer film aredifficult to control are solved. According to a preparation process provided by the invention, the industrial production can be realized.
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Description

technical field

[0001] The invention relates to the technical field of porous film materials, in particular to a porous polymer film with controllable nanometer size and a preparation method thereof. Background technique

[0002] The ordered porous structure film can be used in biomolecular microarrays, pattern templates, super-hydrophobic surfaces, sensing and optoelectronic materials, micro-containers or reactors and other fields. In particular, honeycomb porous structure films have been widely used in the field of biostimulatory materials, mainly for regulating cell responses or as scaffolds for cell growth.

[0003] Porous structure film materials have physical and chemical properties such as large specific surface area, high permeability, good thermodynamic stability, strong molecular adsorption capacity, good assembleability and film-forming properties, and have been widely used in various aspects of experiment, production and life. . The pore diameter, pore depth an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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