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水化硅酸鈣/聚氨酯地坪涂料的制備及性能研究

作者:石永良1,2,韓瑞1

關鍵字:水化,硅,酸鈣,聚氨酯,地坪,涂料,的,制備,及,

 
(1.中國建筑第四工程局有限公司,廣東 廣州  510665;
2.貴州中建建筑科研設計院有限公司,貴州 貴陽  550000)
    摘要:采用硅烷偶聯劑對水化硅酸鈣粉體進行表面改性,確定特定干法改性工藝下硅烷偶聯劑的最佳用量為1%,通過紅外光譜對表面改性結果進行了驗證;并對不同摻量滑石粉、未改性水化硅酸鈣和改性水化硅酸鈣對聚氨酯涂膜性能的改善效果進行對比,通過數碼顯微鏡下涂膜的觀察,對改善機理進行了分析。試驗結果表明,以改性水化硅酸鈣為填料制備的環保型聚氨酯地坪涂料性能優異,符合HG/T 3829—2006《地坪涂料》標準要求。
    關鍵詞:水化硅酸鈣;聚氨酯;有機改性;地坪涂料
    中圖分類號:TU56+1.63        文獻標識碼:A        文章編號:1001-702X(2020)11-0060-04
 
Preparation of the modified polyurethane floor coating with the hydrated silicate calcium superfine powder and research of its performance
SHI Yongliang1,2,HAN Rui1
(1.CSCES Fourth Engineering Bureau Co. Ltd.,Guangzhou 510665,China;
2. Guizhou Construction Science Research & Design Institute Co. Ltd., of CSCEC,Guiyang 550000,China)
    Abstract:Use silane coupling agent to modify the surface of hydrated calcium silicate powder,determine the optimal amount of silane coupling agent under the specific dry modification process to be 1%,and the surface modification result is verified by infrared spectroscopy. The improvement effects of different content of talcum powder,unmodified hydrated calcium silicate and modified hydrated calcium silicate on the performance of polyurethane coatings were compared. The improvement mechanism was analyzed through observation of the coating film under a digital microscope. The test results show that the environmentally friendly polyurethane floor coating prepared with modified hydrated calcium silicate as the filler has excellent performance and meets the requirements of the standard HG/T 3829—2006 "Floor Coatings".
    Key words:hydrated calcium silicate,polyurethane,organic modification,floor coating
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