摘要:
When a bridge pier is reinforced or repaired by wrapping a reinforcement around the pier, a waterproof sheet having a sufficient flexibility to attach to and cover the interface between the pier and the reinforcement in a liquid-tight manner is useful. The waterproof sheet is attached to the interface between the pier and the reinforcement to prevent water from penetrating into the interface for thereby preventing the reinforcement from deterioration.
摘要:
Provided is an insulating heat dissipation sheet hardly producing cracks, and exhibiting a favorable insulation property. The insulating heat dissipation sheet consists of a cured product of an organopolysiloxane composition comprising: (a) 100 parts by mass of an organopolysiloxane exhibiting an average degree of polymerization of 3,000 to 10,000; (b) 10 to 100 parts by mass of an organopolysiloxane exhibiting an average degree of polymerization of 2 to 2,000, and having alkenyl groups only at both ends of a molecular chain thereof, but at no other position on the molecular chain; (c) 2 to 20 parts by mass of an organohydrogenpolysiloxane having hydrogen atoms directly bonded to silicon atoms (Si—H groups); (d) 100 to 300 parts by mass of a boron nitride aggregate; (e) 0.1 to 10 parts by mass of a peroxide cross-linking agent; and (f) 0.1 to 10 parts by mass of a platinum group curing catalyst.
摘要:
Provided is an insulating heat dissipation sheet hardly producing cracks, and exhibiting a favorable insulation property. The insulating heat dissipation sheet consists of a cured product of an organopolysiloxane composition comprising: (a) 100 parts by mass of an organopolysiloxane exhibiting an average degree of polymerization of 3,000 to 10,000; (b) 10 to 100 parts by mass of an organopolysiloxane exhibiting an average degree of polymerization of 2 to 2,000, and having alkenyl groups only at both ends of a molecular chain thereof, but at no other position on the molecular chain; (c) 2 to 20 parts by mass of an organohydrogenpolysiloxane having hydrogen atoms directly bonded to silicon atoms (Si—H groups); (d) 100 to 300 parts by mass of a boron nitride aggregate; (e) 0.1 to 10 parts by mass of a peroxide cross-linking agent; and (f) 0.1 to 10 parts by mass of a platinum group curing catalyst.
摘要:
When a bridge pier is reinforced or repaired by wrapping a reinforcement around the pier, a waterproof sheet having a sufficient flexibility to attach to and cover the interface between the pier and the reinforcement in a liquid-tight manner is useful. The waterproof sheet is attached to the interface between the pier and the reinforcement to prevent water from penetrating into the interface for thereby preventing the reinforcement from deterioration.