Abstract: An on-line detection system for defects of an MEA is provided. The detection system includes a workbench, two connecting rods are arranged inside the workbench, two ends of the two connecting rods are both connected to two side walls of the workbench by means of bearings, and conveying rollers are fixedly arranged outside the two connecting rods in a sleeving manner. One side of the workbench is fixedly provided with a first electric motor, and an output end of the first electric motor is fixedly connected to one of the connecting rods. Belt pulleys are fixedly arranged outside the two connecting rods in a sleeving manner, and a belt is arranged outside the two belt pulleys in a sleeving manner. A hollow roller is arranged on an inner side of the workbench, and a plurality of exhaust holes are provided in a top of the hollow roller.

Abstract: The present invention provides a carbon nitride-based photocatalyst and a preparation method thereof. The photocatalyst is prepared by reaction of melem with 3,3?,4,4?-benzophenonetetracarboxylic dianhydride. The photocatalyst according to an embodiment of the present invention achieves energy level matching in structure between the melem structure and the 3,3?,4,4?-benzophenonetetracarboxylic dianhydride, reduces a singlet-triplet energy gap (?EST), promotes an intersystem crossing process, thereby enhancing the singlet oxygen production and improving the selective photocatalytic oxidation ability.

Abstract: The present invention provides a carbon nitride-based photocatalyst and a preparation method thereof. The photocatalyst is prepared by reaction of melem with 3,3?,4,4?-benzophenonetetracarboxylic dianhydride. The photocatalyst according to an embodiment of the present invention achieves energy level matching in structure between the melem structure and the 3,3?,4,4?-benzophenonetetracarboxylic dianhydride, reduces a singlet-triplet energy gap (?EST), promotes an intersystem crossing process, thereby enhancing the singlet oxygen production and improving the selective photocatalytic oxidation ability.

Abstract: A silicone resin containing boron, aluminum, and/or titanium, and having silicon-bonded branched alkoxy groups; a silicone composition containing a silicone resin; and a method of preparing a coated substrate comprising applying a silicone composition on a substrate to form a film and pyrolyzing the silicone resin of the film.

Abstract: A silicone resin containing boron, aluminum, and/or titanium, and having silicon-bonded branched alkoxy groups; a silicone composition containing a silicone resin; and a method of preparing a coated substrate comprising applying a silicone composition on a substrate to form a film and pyrolyzing the silicone resin of the film.

Abstract: Herein is disclosed a resin solution, comprising (a) about 0.1 solids wt % to about 50 solids wt % of an organosiloxane resin comprising the formula (RSiO3/2)x(R′SiO3/2)y, wherein R is selected from the group consisting of C4-C24 alkyl, C4-C24 alkenyl, C4-C24 alkoxy, C8-C24 alkenoxy, and C4-C24 substituted hydrocarbon; R′ is selected from the group consisting of —H, C1-C4 unsubstituted hydrocarbon, and C1-C4 substituted hydrocarbon; x is from about 5 mole % to about 75 mole %; y is from about 10 mole % to about 95 mole %; and x+y is at least about 40 mole %; and (b) about 50 solids wt % to about 99.9 solids wt % of a resin comprising at least about 90 mole % of the formula HSiO3/2.

Abstract: A hydrosilylation reaction curable composition that includes a silsesquioxane polymer, a mixture of silanes or siloxanes as a cross-linking compound and a hydrosilylation reaction catalyst. The curable composition is cured to form a cured resin having high fracture toughness and strength without the loss of elastic modulus.

Abstract: A hydrosilylation reaction curable composition including a silsesquioxane polymer, a cross-linking compound, a hydrosilylation reaction catalyst and colloidal silica having a surface coating formed thereon. The curable composition is cured to form a cured resin having high fracture toughness and strength without the loss of elastic modulus and glass transition temperature.

Abstract: Herein is disclosed a resin solution, comprising (a) about 0.1 solids wt % to about 50 solids wt % of an organosiloxane resin comprising the formula (RSiO3/2)x(R′SiO3/2)y, wherein R is selected from the group consisting of C4-C24 alkyl, C4-C24 alkenyl, C4-C24 alkoxy, C8-C24 alkenoxy, and C4-C24 substituted hydrocarbon; R′ is selected from the group consisting of —H, C1-C4 unsubstituted hydrocarbon, and C1-C4 substituted hydrocarbon; x is from about 5 mole % to about 75 mole %; y is from about 10 mole % to about 95 mole %; and x+y is at least about 40 mole %; and (b) about 50 solids wt % to about 99.9 solids wt % of a resin comprising at least about 90 mole % of the formula HSiO3/2.

Abstract: A hydrosilylation reaction curable composition including a silsesquioxane polymer, a cross-linking compound, a hydrosilylation reaction catalyst and colloidal silica having a surface coating formed thereon. The curable composition is cured to form a cured resin having high fracture toughness and strength without the loss of elastic modulus and glass transition temperature.

Abstract: A hydrosilylation reaction curable composition that includes a silsesquioxane polymer, a mixture of silanes or siloxanes as a cross-linking compound and a hydrosilylation reaction catalyst. The curable composition is cured to form a cured resin having high fracture toughness and strength without the loss of elastic modulus.

Abstract: A colloid composition can be used to form a thin film on a substrate. The colloid can be colloidal silica. The thin film can be a dielectric layer. The substrate can be a semiconductor substrate having gaps thereon.

Abstract: A process for producing a cured silsesquioxane resin. The process includes fractionating the silsesquioxane resin a plurality of times utilizing an organic solvent in combination with an organic non-solvent. The fractionated resin is then stripped of excess solvent. The stripped resin is then mixed with a cross-linking compound to form a curable composition. The curable composition is cured to form a cured resin having high fracture toughness and strength without the loss of elastic modulus.

Abstract: A cured silsesquioxane resin and method for its preparation are disclosed. By using a silyl-terminated hydrocarbon in the hydrosilylation reaction curable composition used to prepare the cured silsesquioxane resin, the cured silsesquioxane resin has improved strength and toughness without significant loss of modulus. A typical silyl-terminated hydrocarbon useful in this invention is silphenylene.