High-hardness edge-sealing silane-modified polyether sealant and preparation method thereof
A technology of silane-modified polyether and edge silane, which is applied in the direction of polyether adhesives, chemical instruments and methods, adhesives, etc., can solve the problem of low hardness of rubber strips, achieve fast curing speed, increase hardness density, and hard surface smooth effect
Inactive Publication Date: 2019-08-30
广州和新实业有限公司
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Abstract
The invention discloses a high-hardness edge-sealing silane-modified polyether sealant. The high-hardness edge-sealing silane-modified polyether sealant is characterized by achieving sealing hardnessof 80 to 90 Shore A and comprising the following raw materials by weight: 15 to 30 parts of a silane-modified polyether prepolymer, 13 to 20 parts of a plasticizer, 40 to 70 parts of a reinforcing incremental powder, 0.1 to 2 parts of an antioxidant, 1 to 10 parts of a cross-linking agent, 0.1 to 2 parts of a coupling agent, 0.05 to 0.09 part of a catalyst and 1 to 10 parts of high styrene resin.According to the invention, the hardness density of a silane-modified polyether sealant is improved; meanwhile, a cured product is guaranteed to be insusceptible to cracking and powdering; due to enlarged hardness density of a sealant slurry, water impurity is better prevented from permeating into the sealant; the surface of the high-hardness edge-sealing silane-modified polyether sealant is hardand smooth and facilitates scrubbing, so a long-acting mildew-proof effect is achieved; and when in use, the high-hardness edge-sealing silane-modified polyether sealant has rapid curing speed and isspecifically applicable to sealing of the seal edge of the position of a hand basin in a kitchen and a bathroom.
Application Domain
Non-macromolecular adhesive additivesOther chemical processes +4
Technology Topic
PrepolymerChemistry +11
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