Two-component structural silicone sealant for building

The invention discloses a two-component structural silicone sealant for building, which comprises the following components by weight part: a component A: 80 to 120 parts of hydroxy-terminated polydimethylsiloxane, 10 to 80 parts of alkyl-terminated poly dimethylsiloxane, 100-300 parts of active fill...

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Bibliographische Detailangaben
Hauptverfasser:	WANG XIAOHONG, FENG PEI, YANG XIAOFEI, GAO XINDIAN, ZHANG YANHONG, YAO YINGYAN, ZHANG YANQING, YANG YUNING, AN JING, ZHANG DEHENG, ZHANG YANLING, YANG XIAOKE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	The invention discloses a two-component structural silicone sealant for building, which comprises the following components by weight part: a component A: 80 to 120 parts of hydroxy-terminated polydimethylsiloxane, 10 to 80 parts of alkyl-terminated poly dimethylsiloxane, 100-300 parts of active filler; and a component B: 5 to 15 parts of alkoxy silane, 0.3-5 parts of coupling agent, 0.01-0.2 part of catalyst, and 0.01-5 parts of light stabilizer. The invention takes hydroxyl-terminated poly dimethyl siloxane as a base adhesive, and adjusts the ratio of ingredients by adding the crosslinking agent alkoxy silane and the coupling agent to obtain the structural silicone sealant with excellent anti-aging and anti-decay performances, and the ratio of the tensile bond strength of water-ultraviolet 1008h and the like and the standard-condition tensile bond strength is equal to or greater than 0.75; the standard-condition tensile bond strength reaches 0.8-3.0MPa, and the elongation rate exceeds 100%; and the service l