TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The silane coupling agents comprise vinyl diethoxy silane, vinyl dimethoxy silane, vinyl-tert-butyl peroxide, vinyltrimethoxysilane and/or vinyl tris( beta -methoxyethoxy)silane.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The crosslinking agents comprise crosslinking curing agent and auxiliary crosslinking agent, where the crosslinking curing agent comprises organic peroxides and azo compound, the organic peroxides include dicumyl peroxide, di-tert-butyl peroxide, dicumyl peroxide, 2,5-dimethyl-2,5-butylperoxy hexane, 4,4-di(tert-amyl peroxy)-n-butyl valerate, peroxy-2-ethylhexyl carbonate or tert-butyl-3,3-bis (tert-butylperoxy) butyrate, and the auxiliary crosslinking agent includes triallyl isocyanurate, cyanuric acid triallyl, divinylbenzene, trimethylol propane trimethacrylate, diethylene glycol dimethacrylate or diallyl phthalate. The antioxidant comprises tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate) or (3,5-di-tert-butyl-4-hydroxyphenyl) propionate as a carbon alcohol ester. The UV absorbers and UV light stabilizers comprise bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate, poly(1-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxy-piperidine)succinate, poly((6-((1,1,3,3-tetramethylbutyl)amino)-1,3,5-triazine-2,4- diyl)((2,2,6,6-tetramethyl-4-piperidinyl)imino)-1,6- hexanediyl((2,2,6,6-tetramethyl-4-piperidinyl)imino)), polybutylene succinate-(4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol)acrylate, poly((6-((1,1,3,3-tetramethylbutyl)-amino)-1,3,5-triazine-2,4-diyl)((2,2,6,6-tetramethyl-piperidyl)imino)-1,6- hexanediyl-((2,2,6,6-tetramethyl-piperidinyl)-imino)) and/or 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The modified polyolefin has an ethylene content of 85-99%, and comprises an ethylene-propylene copolymer, butene-modified polyethylene, polyethylene octylene and/or hexene-modified polyethylene.