Method for preparing piezoelectric polymer functional film with ordered micro-cellular structure by using template

A technology of piezoelectric polymer and microporous structure, which is applied in the direction of microstructure technology, microstructure device, and processing microstructure device, etc., which can solve the problem that the mechanical properties and charge storage capacity of porous membranes cannot be effectively controlled or precisely controlled Porous membrane microstructure parameters and other issues, to achieve the effect of simple preparation process
CN101624170AInactive Publication Date: 2010-01-13TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2010-01-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing a piezoelectric polymer functional film with an ordered micro-cellular structure by using a template, and relates to a preparation technique of the piezoelectric polymer functional film with the ordered micro-cellular structure. The method firstly prepares a template (4) with a concave-convex ordered pattern, then prepares an ordered porous polymer single-layer thin film (2) which shows a pattern corresponding to the concave-convex ordered pattern of the template (4), then clamps the ordered porous polymer single-layer thin film (2) between two dense films, and carries out hot-pressing to form the piezoelectric polymer functional film with the ordered micropore structure. The method has simple technique, not only can obtain an electromechanical functional film with high thermostability and high pressure flexibility, and has more outstanding advantages of the capability of precisely controlling the microstructure of the film and electric charge of the storing space. The obtained functional film can be used for manufacturing electroacoustic sensors, acoustoelectric sensors, infrasonic wave sensors, ultrasonic sensors, plate loudspeakers, actuators and robot skin and the like, and has wide application prospect in the fields of communication, public security, control, medical treatment, robots, military and the like.
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Description

technical field

[0001] The invention discloses a method for preparing a piezoelectric polymer functional film with an ordered microporous structure by using a template, and relates to a preparation process for a piezoelectric polymer functional film with an ordered microporous structure. It belongs to the technical field of functional materials. Background technique

[0002] Some non-polar microporous polymer films have both piezoelectric and electret properties after proper electric polarization treatment, and are named piezoelectric electret (piezoelectret) or ferroelectret (ferroelectret) , is a new member of the family of electromechanical sensor materials. Piezoelectric electrets are different from traditional piezoelectrics and ferroelectrics in that the material itself is a non-polar material, and its piezoelectric effect is derived from the air gap ionization captured by the two solid medium walls of the hole during the electric polarization process. The charges of...

Claims

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