Sintez Novykh Gidrofil'nykh Sopolimerov I Ikh Primenenie V Tsementu

Sintez Novykh Gidrofil'nykh Sopolimerov I Ikh Primenenie V Tsementu

by Negim El' Sayed

168 pages· 2011· ISBN 9783843304535
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Polucheny sopolimery akrilovoy kisloty (AK) i 2-gidroksietilakrilata (GEA) so stirolom razlichnogo sostava v spirtovom rastvore s ispol'zovaniem dinitril-azo-bis-izomaslenoy kisloty v kachestve initsiatora. Metodami IK-, YaMR, EPR i mass-spektroskopii i viskozimetrii provedena sravnitel'naya kharakteristika poluchennykh vodorastvorimykh sopolimerov. Issledovano vliyanie vodorastvorimykh sopolimerov v neytral'noy i shchelochnoy srede na fiziko-mekhanicheskie svoystva obychnogo portland tsementa (OPTs). Ustanovleno, chto dobavlenie vodorastvorimykh sopolimerov uluchshaet osnovnye spetsificheskikh kharakteristiki OPTs. S uvelicheniem kontsentratsii sopolimera uvelichivaetsya vremya otverdeniya tsementa. Soderzhanie svyazannoy vody povyshaetsya s dobavleniem sopolimera v betonnuyu smes'. Pokazano, chto dobavki sopolimerov uvelichivayut prochnost' tsementa. Rastvory poluchennykh sopolimerov s gidroksidom natriya bolee effektivny, chem neytral'nye rastvory sopolimerov

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