化学
接触角
热重分析
硅烷
纤维素
表面改性
涂层
傅里叶变换红外光谱
固化(化学)
Box-Behnken设计
化学工程
试剂
水解
有机化学
响应面法
高分子化学
材料科学
复合材料
色谱法
工程类
作者
Trần Thị Yến Nhi,Trinh Duc Cong,Tran Thi Thanh Hop,Luong Nhu Hai,Nguyen The Huu,Ngo Trinh Tung
标识
DOI:10.1134/s1070427222030065
摘要
In this study, an optimized method for surface modification of cellulose microfibrils (CMF) with (3-Aminopropyl) trimethoxysilane (APTMS) for eco-friendly hydrophobic coating on kraft paper was achieved using Box-Behnken Design (BBD) through response surface methodology (RSM). Three parameters, including APTMS concentration, hydrolysis-condensation reaction time of APTMS and curing temperature of APTMS, were optimized to obtain the highest water contact angle (θH2O) of the coated kraft paper. The optimal coating conditions extracted by Design Expert Software for the highest value of water contact angle θH2O were APTMS concentration of 8.02% (v/v), APTMS hydrolysis-condensation reaction time of 68.2 min and APTMS curing temperature of 105.3°C. Under these conditions the water contact angle θH2O of 123.3° was obtained. The water contact angle θH2O obtained at these optimal coating conditions experimentally was 124.5°. Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), energy dispersive X-Ray (EDX) analysis and scanning electron microscopy (SEM) provided evidence of successful surface silylated of CMF with APTMS.
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