TECHNOLOGY FOCUS - ELECTRONICS - Preferred Components: The conducting plate which is prepared has an electric conductivity not less than 250 S cm-1, has a flexural strength not less than 40 MPa and has a thermal conductivity not less than 20 W/m K.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: The functionalized graphene is prepared by reducing a graphite oxide having an oxygen-containing carboxylic acid, alcohol, keto or ether functional group, the content of which is greater than a weight loss of 20 (preferably 30) wt.%, measured by thermogravimetric analysis heating from 100-800 degrees C at a heating rate of 2 degrees C/minute. The reduction is a chemical reduction, thermal reduction and/or hydrothermal reduction. The reduction is thermal reduction carried out at 150-1200 degrees C with a heating rate of 10-2000 degrees C/minute in an inert atmosphere for 5-300 seconds. The graphite oxide having an oxygen-containing functional group, which is formed by oxidizing graphite powder with a strong acid and a strong oxidizing agent for 2 hours to 10 days. Preferred Components: The graphite powder being oxidized is natural graphite powder, expanded graphite, graphite carbon and/or soft graphite. The strong acid is an inorganic acid. The oxidizing agent is potassium chlorate, potassium perchlorate, potassium permanganate, sodium permanganate, potassium persulfate, phosphorus pentoxide and/or sodium nitrate.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The functionalized graphene has an oxygen-containing carboxylic acid, alcohol, keto or ether functional group, the content of which is less than a weigh loss of 10 wt.% measured by thermogravimetric analysis heating from 100-800 degrees C at a heating rate of 2 degrees C/minute. The functionalized graphene is added at 0.1-2 wt.% based on the weight of the vinyl ester resin. The reduction is: a chemical reduction by using a reducing agent comprising hydrazine, hydroquinone, sodium borohydride, sodium citrate, hydroxide and/or ascorbic acid; or hydrothermal reduction by using water, alcohol and/or organic solvent.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The functionalized graphene is a single-layered or a multiple-layered graphene, and has a length and a width of 100 nm to 500 mu m and a thickness of 0.34-10 nm. The functionalized graphene is a 1-9-layered graphene, and has a length and width of 1-10 mu m and a thickness of 1-5 nm and specific surface area of 100-2630 m2/g. EXAMPLE - To natural graphite powder (5 g) (particle size of 70 mu m, purity of 99.99995% and density of 2.25 g/cm3) in 500 three-neck flask, sulfuric acid (87.5 ml) and nitric acid (45 ml) were added, and the reaction mixture was stirred. When graphite was dispersed uniformly, potassium chlorate (55 g) was added slowly and stirred at 0-4 degrees C for over 96 hours. After the completion of the oxidizing reaction, the mixture was added into deionized water bath and then filtered. The solid was rinsed and redispersed in hydrochloric acid solution (5%) repeatedly 3 times and worked up to give graphene (II). Vinyl ester resin (144 g) and styrene-monomer-diluted polystyrene (16 g) were dissolved in styrene monomer (32 g). Tert-butyl peroxybenzoate (3.456 g), magnesium oxide (3.456 g) and zinc stearate (6.72 g) were added to form a solution (192 g) (A). The solution (A), graphite powder (448 g) and functionalized graphene (II) (0.384 g) were poured into a bulk molding compound kneader and mixed homogeneously by forward-and-backward rotations for a kneading time of 30 minutes. The kneading operation was stopped and the mixed material was removed from the mixer to be thickening for 36 hours. Prior to the thermal compression, the material was divided into several lumps of molding material with each lump weighing 65 g. A slab mold was fastened to the upper and lower platforms of a hot press. The pre-heating temperature of the mold was set to 150 degrees C. After the temperature had reached the set point, the lump was disposed at the center of the mold and pressed with a pressure of 3000 psi to form a specimen. After 300 seconds, the mold was opened automatically, and the specimen was removed.