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Designing method for realizing self-folding of high polymer by macroscale

A design method and polymer technology, applied in the field of polymer self-folding design, can solve problems such as difficult control of experimental conditions and complicated experimental equipment

Inactive Publication Date: 2019-01-15
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

To overcome the problems of complex experimental equipment and difficult control of experimental conditions in the prior art

Method used

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  • Designing method for realizing self-folding of high polymer by macroscale
  • Designing method for realizing self-folding of high polymer by macroscale
  • Designing method for realizing self-folding of high polymer by macroscale

Examples

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Embodiment 1

[0038] A design method for realizing polymer self-folding on a macro scale, the steps of the design method are as follows:

[0039] (1) be length 5cm, the high polymer (1) sheet material of glass state that width is 1cm carries out tensile deformation with stretching machine, and its final length uniform deformation is 180%, and length is 9cm, and width is 0.7cm , in this embodiment, the polymer (1) is polyethylene terephthalate-1,4-cyclohexanedimethanol;

[0040] (2) Cut the polymer (1) pre-deformed in step (1) into small sections with a length of 1 cm, and then cut the rubber (2) into strips with a length of 6 cm and a width of 1 cm. In this embodiment, Rubber (2) is silicone rubber;

[0041] (3) Use a rubber surface treatment agent to treat the strip-shaped rubber (2), the polymer (1) is superimposed on the surface of the rubber (2), and the angle between the two is 45°, and the polymer (1) is glued with instant adhesive (1) The surface in contact with the rubber (2) is p...

Embodiment 2

[0048] A design method for realizing polymer self-folding on a macro scale, the steps of the design method are as follows:

[0049] (1) be length 5cm, the high polymer (1) sheet material of glass state that width is 1cm carries out tensile deformation with stretching machine, and its final length uniform deformation is 180%, and length is 9cm, and width is 0.7cm , in this embodiment, the polymer (1) is polyethylene terephthalate-1,4-cyclohexanedimethanol;

[0050](2) Cut the polymer (1) pre-deformed in step (1) into a small section with a length of 3 cm, and then cut the rubber (2) into a sheet with a length of 5 cm and a width of 3 cm. In this embodiment, Rubber (2) is silicone rubber;

[0051] (3) Use a rubber surface treatment agent to treat the strip-shaped rubber (2), and evenly superimpose the small segment of the high polymer (1) on the surface of the rubber (2), and the length of the small segment of the high polymer (1) and the sheet rubber ( 2) are parallel to each...

Embodiment 3

[0058] A design method for realizing polymer self-folding on a macro scale, the steps of the design method are as follows:

[0059] (1) be length 5cm, the high polymer (1) sheet material of glass state that width is 1cm carries out tensile deformation with stretching machine, and its final length uniform deformation is 180%, and length is 9cm, and width is 0.7cm , in this embodiment, the polymer (1) is polyethylene terephthalate-1,4-cyclohexanedimethanol;

[0060] (2) The polymer (1) after step (1) pre-deformation is not processed, and then the rubber (2) is cut into strips with a length of 9 cm and a width of 0.7 cm. In this embodiment, the rubber (2) is Silicone Rubber;

[0061] (3) Use a rubber surface treatment agent to treat the strip-shaped rubber (2), and evenly superimpose the high polymer (1) on the surface of the rubber (2), and the high polymer (1) and the strip-shaped rubber (2) Parallel to each other (there is an angle of 0° between the two), use instant adhesiv...

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Abstract

The invention relates to a designing method for realizing self-folding of a high polymer by macroscale. The method comprises the following steps: pre-deforming a glass type high polymer with shape memorizing property; controlling the length and the deformation size; dismounting; controlling the geometric sizes of the high polymer and rubber as requirement; adhering the deformed high polymer and rubber; increasing the environmental temperature; and converting a complex plane structure into a three-dimensional shape. The method is realized by the macroscale; the designing level is increased frommicron level to centimeter level; one outside stimulus factor which is temperature is utilized only to enable shape recovery of the pre-stressed shape memorizing high polymer, and the rubber materialadhered to the surface of the shape memorizing high polymer performs limiting, so that the self-folding effect of double-layer materials on the high polymer plane is realized; experimental devices are simple; the experiment conditions are easily controlled; the experiment operation is simple, and easy to carry out. Therefore, the designing method is simple and convenient.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a design method for realizing self-folding of polymers on a macroscopic scale. Background technique [0002] The mechanical methods for transforming from two-dimensional planar structure to three-dimensional structure include three-dimensional printing and manual folding. Compared with mechanical methods, this method is cheaper, faster and easier to implement. [0003] Through the folding of polymers, three-dimensional structural objects of arbitrary complex shapes can be obtained, such as various complex machines and even robots, and the shape of objects can change with changes in the environment, so it can be used at the nano, micro and macro scales Working on it can be applied to microelectronics, medicine, chips, military and aerospace and other fields. [0004] As the three-dimensional structure of the machine becomes more and more complicated, the se...

Claims

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Application Information

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IPC IPC(8): B29C53/04B29C53/12B29C53/14
CPCB29C53/04B29C53/12B29C53/14
Inventor 肖锐田传帅
Owner HOHAI UNIV
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