TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: In the second structural composition, the doping weight ratio of carbon nanotube is less than or equal to 40%. The weight ratio of free radical type UV photo-curable adhesive and the cation type UV photo-curable adhesive in the mixed system is 10:1-1:10. The free radical type UV photo-curable adhesive comprises (in wt.%) a base resin (90-99.5), monomer (0.2-3), a photoinitiator (0.1-3), and a photosensitizer and an auxiliary agent (0.2-6). The cation type UV photo-curable adhesive comprises (in wt.%) cationic monomer (90-99.5), diluent (0.4-8) and cationic photoinitiator (0.1-3). The monomer comprises styrene or its derivatives, or mono-functional or poly-functional acrylamide. The photoinitiator comprises benzoin or its derivatives, benzoin methyl ether, benzoin ethyl ether and benzoin isopropyl alcohol, or acetophenone derivatives. The photosensitizer comprises benzophenone, anthraquinone or Michler's ketone. The auxiliary agent comprises a plasticizer, a thixotropic agent, fillers, an antistatic agent, a crosslinking agent, a flame retardant and a coupling agent. The diluent comprises toluene, xylene, an active epoxy resin diluent and cyclic ether, cyclic lactone, and vinyl ether monomer. The cationic photoinitiator is triaryl iodonium salt, triaryl sulfonium salt or triaryl selenium salt.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The base resin comprises an unsaturated polyester resin, an acrylic resin or a polythiol-polyene system. The cationic monomer comprises epoxy resin or a modified epoxy resin, or a mixture of fluorinated and non-fluorinated or aliphatic and bisphenol D-type mixed epoxy resin. The acrylic resin comprises polyester-acrylate, epoxy-acrylate, carbamate-acrylate and polyether acrylate. The polythiol-polyene system comprises polythiol-polyene compounds of formulae (C(CH2OC(O)(CH2)nSH)4) (I), (CH3(CH2)nC(CH2OC(O)(CH2)nSH)3) (II), (HS(CH2CH2O)nCH2CH2SH) and (HS(CH2)nC(O)O(CH2-CH2O)n-C(O)(CH2)nSH) (IV), where n is not defined.