TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Component: The high-value metallic compound forming the physical bonding is tungsten, zirconium, iridium, yttrium, manganese, ruthenium, cerium, vanadium, zinc, titanium, and/or lanthanum elements.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The high-value metallic compound can be complex salt(s) of nitrate, sulfate, carbonate, phosphate, acetate of the highest value state and middle value state of the metallic elements; or cyclodextrin, crown ether, acetylacetone, nitrogen-containing crown ether, and nitrogen-containing heterocyclic ring, ethylenediamine tetraacetic acid, dimethyl formamide, and dimethyl sulfoxide complex product of the highest value state and middle value state of the metallic elements; hydroxide of the highest value state and middle value state of the metallic elements; or selected from oxide containing perovskite structure of the highest value state and middle value state of the metallic elements. The oxide includes CexTi(1-x)O2, Ca0.6-La0.27TiO3, La(1-y)CeyMnO3, La0.7Ce0.15Ca0.15MnO3.x=0.25-0.4;y=0.1-0.4.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The nitrile group-containing function monomer is a compound of formula F2C=C(O(CF2C(CF3)FO)eCF2CF2CN)F (I). The nitrile group-containing ion exchange resin is resin(s) of formula -(-CF2CF2-)x-CF2C(O(CF2C(CF3)FO)eCF2CF2CN)F2-(CF2CF2-)yCF2C(O(CF2C(CF3)FO)n(CF2)mSO3H)F- (II) or (III). The composite material can be resin(s) of formula (-(CF2CF2)x-CF2C(O(CF2C(CF3)FO)n(CF2)pSO3H)F-)y (IV) and/or formulae (V)-(VI). The resins are 0.80-1.60 mmol/g in ion exchange capacities and 150000-450000 in number-average molecular weight. The fluorine-containing polymer fiber is PTFE fiber, fluorinated ethylene propylene, fluorinated propyl ethylene ether fiber, and/or fluorocarbon polymer fiber of 0.005-50 mu m in diameter, 0.05 mu m to 3 mm in length, preferably 0.01-20 mu m in diameter. The mass ratio of the fluorine-containing polymer fiber to the ion exchange resin is 0.5-50-100, preferably 0.5-20-100. The composite material contains high-value metallic compound. The partial acid exchange group in the ion exchange resin forms physical bonding by the high-value metallic compound. The partial high-value metallic compound forms the triazine ring crosslinked structure and forms complex key with the triazine ring. The high-value metallic compound is 0.0001-5 (preferably 0.001-1) wt.% of mass of the resin.e=1-3;n=0 or 1;m=2-5;x, y=3-15;a, b, c, d=3-15;a', b', c', d'=1-3;j=0-3;n of (IV)-(VI)=0-2:p=2-5;f, g, h=3-15;f', g', h'=1-3;i=0-3;M, M'=H, K, Na, or NH4.Preferred Method: The high-value metallic compound, acid crosslinked catalyst liquid is mixed with diffused solution of the ion exchange resin and fiber grafted by nitrile group, followed by pouring, casting, silk-screen printing, spraying, and soaking to form wet film on a flat plate. The wet film is thermally processed at 30-300 degrees C to obtain the composite material forming the triazine ring crosslinked structure. The solvent used in solution pouring, casting, silk-screen printing, spraying, soaking techniques is dimethylformamide, dimethylacetamide, methylformamide, dimethyl sulfoxide, N-methyl pyrrolidone, hexamethyl phosphoramide, acetone, water, ethanol, methanol, propyl alcohol, isopropyl alcohol, ethylene glycol, and/or glycerin. The preparation conditions include concentration of the resin diffused solution of 1-80 (preferably 5-40)% and thermal procession temperature of 30-300 (preferably 120-250) degrees C for 1-600 (preferably 5-200) minutes