本文選題：滑石粉 + 表面改性��； 參考：《硅酸鹽通報(bào)》2017年04期

【摘要】：研究硬脂酸、鋁酸酯、鈦酸酯對(duì)滑石粉的改性效果,以活化指數(shù)和接觸角作為表征指標(biāo),得到滑石粉的較好的改性工藝參數(shù):硬脂酸、鈦酸酯、鋁酸酯的用量分別為3%、2.5%、3%,改性時(shí)間為1.5 h,改性溫度為65℃。分別利用粒度分析和掃描電鏡觀察改性前后滑石粉的粒度和形貌,發(fā)現(xiàn)改性滑石粉粒徑減小,分散性提高。放置42 d后,未添加滑石粉的尿素和復(fù)合肥的結(jié)塊率分別為26.79%和12.96%,結(jié)塊強(qiáng)度分別為868.38 N/kg和1974.11N/kg;添加3%鈦酸酯改性的滑石粉作為防結(jié)塊劑時(shí),尿素和復(fù)合肥的結(jié)塊率分別0.59%和0.46%,結(jié)塊強(qiáng)度分別為30 N/kg和40 N/kg。
[Abstract]:The modification effect of stearic acid, aluminate ester and titanate on talc powder was studied. The activation index and contact angle were taken as the characterization indexes to obtain the better modification process parameters of talc powder: stearic acid, titanate, The dosage of aluminate is 32.5%, the modification time is 1.5 h, and the modification temperature is 65 鈩，

本文編號(hào)：1827506