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Reversible adhesive devices based on dielectric elastomers

A dielectric elastomer and adhesive technology, which can be used in adhesives, film/sheet adhesives, bonding methods, etc., can solve the problems that restrict the large-scale application of reversible adhesion technology, the number of cycles is small, and the operation is difficult. Achieve the effect of being conducive to long-term work, long cycle life and low preparation cost

Inactive Publication Date: 2016-12-07
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] Existing reversible adhesion technology is mainly adjusted by external sources such as speed, temperature, pressure, etc., which has problems such as difficult operation, difficult control, and low number of cycles. It has certain limitations and pertinence, which restricts the large-scale application of reversible adhesion technology.

Method used

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  • Reversible adhesive devices based on dielectric elastomers

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Embodiment Construction

[0033] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0034] Such as figure 1 As shown, the reversible adhesive device based on dielectric elastomer in this embodiment includes a first fixed layer 5, an adhesive layer 4, a rigid body 3, a driving layer 2 and a second fixed layer 1 from bottom to top, wherein, the first The first fixed layer 5 and the second fixed layer 1 are collectively referred to as a fixed layer.

[0035] Both the first fixed layer 5 and the second fixed layer 1 are provided with through holes as positioning holes to cooperate with the deformation of the adhesive layer 4 and the driving layer 2 caused by the rigid body 3; the upper and lower surfaces of the driving layer are coated with electrodes; the rigid body 3 It is a rigid steel ball with a diameter of 8mm.

[0036] Adhesive layer 4 adopts acrylic pressure-sensitive adhesive. The driving layer 2 adopts a dielectric elastomer with ...

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Abstract

The invention discloses a reversible adhesive device based on a dielectric elastomer. The reversible adhesive device comprises an adhesion layer, a driving layer and a rigid body positioned between the adhesion layer and the driving layer, wherein the driving layer adopts a dielectric elastomer film with upper and lower surfaces coated with flexible electrode layers. Compared with the prior art, the reversible adhesive device has the following advantages: the material matching scheme is flexible, the structure is simple, and the parameters of the reversible glue sticky device can be adjusted at random to meet the requirements of different working conditions; control is performed through power supply and power failure, the operation is simple and easy to control, long-time operation is facilitated, and recycling is realized; the reversible adhesive device can be manufactured into a half-flexible reversible adhesive device to perfectly fit a complicated curve so as to complete reversible adhesive operation on the complicated curve.

Description

technical field [0001] The invention relates to the technical field of reversible adhesion, in particular to a reversible adhesive device based on a dielectric elastomer. Background technique [0002] Adhesives, as an indispensable material in human daily production and life, are widely used in various technical fields such as architectural decoration, article packaging, machinery manufacturing, and micro-nano manufacturing. [0003] The International Organization for Standardization (ISO) defines "adhesion" as follows: Adhesion refers to the state in which the surfaces of two solid substances become integrated by chemical or physical forces; ) refers to a substance that is interposed between two materials and made into an integrated state by bonding; the solid substance that is adhered is called an adherend (adherend); The part where the surfaces of the adherends are bonded together is called a joint. [0004] Compared with mechanical bonding, adhesion has a more uniform ...

Claims

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Application Information

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IPC IPC(8): C09J5/00C09J7/02
Inventor 冒杰李铁风罗英武
Owner ZHEJIANG UNIV
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