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High strain gels, gel composites and artificial muscel actuators made thereform

  • US 20030122446A1
  • Filed: 10/17/2002
  • Published: 07/03/2003
  • Est. Priority Date: 04/19/1994
  • Status: Active Grant
First Claim
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1. A artificial muscle actuator comprising:

  • a) one or more thin film layers folded or rolled into the shape of a cylinder forming a center part of said cylinder and an outer part of said cylinder, said film layer having a top surface Mn1 and a bottom surface Mn2, said top surface and said bottom surface each coated with an electrical conducting layer Mc, said conducting layer of said top surface connected by a first electrode on said top surface positioned at said center part and said bottom surface connected by a second electrode on said bottom surface positioned at said outer part;

    said first and second electrodes being connected to one or more direct current power source or sources, said power supply capable of generating a electrical potential of a positive electrical charge to the first electrode and a negative electrical charge to the second electrode from less than about 100 volt to above about 10,000 volts;

    said film layers comprising a gel made from one or more copolymers having one or more polyethylene segments and capable of exhibiting crystanility at about 10°

    C. and higher as determined by DSC curve, said gel having rigidities of from less than about 2 gram Bloom to about 1,800 gram Bloom; and

    said gel being capable of exhibiting greater tear resistance than amorphous gels of SEPS and SEBS.

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