COMPOSITE MATERIAL WITH IMPROVED MECHANICAL PROPERTIES AND MOLDED ARTICLE CONTAINING SAME
First Claim
1. A composite produced by processing a resin composition comprising a thermoplastic resin, bundle type carbon nanotubes, and a reinforcing material wherein the carbon nanotubes have an ID/IG of 1.0 or less, the ID/IG being the ratio of the intensity of D-band peak to that of G-band peak in the Raman spectrum of the carbon nanotubes before the processing, and the ratio of residual length of the carbon nanotubes present in the composite is from 40% to 99%, the ratio of residual length being defined by Equation 1:
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Ratio of residual length (%)=(Average length of the carbon nanotubes present in the composite after processing/Average length of the carbon nanotubes before processing)×
100
(1).
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Abstract
Provided is a composite produced by processing a resin composition including a thermoplastic resin, bundle type carbon nanotubes and a reinforcing material. The carbon nanotubes have an ID/IG of 1.0 to 1.0 before the processing. The ratio of residual length of the carbon nanotubes present in the composite is from 40% to 99%. The composite has improved mechanical properties without deterioration of conductivity. With these improvements, the composite can be used to manufacture various molded articles.
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Citations
24 Claims
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1. A composite produced by processing a resin composition comprising a thermoplastic resin, bundle type carbon nanotubes, and a reinforcing material wherein the carbon nanotubes have an ID/IG of 1.0 or less, the ID/IG being the ratio of the intensity of D-band peak to that of G-band peak in the Raman spectrum of the carbon nanotubes before the processing, and the ratio of residual length of the carbon nanotubes present in the composite is from 40% to 99%, the ratio of residual length being defined by Equation 1:
Ratio of residual length (%)=(Average length of the carbon nanotubes present in the composite after processing/Average length of the carbon nanotubes before processing)×
100
(1).- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
Specification