本文選題：白炭黑 + 水玻璃　； 參考：《中國粉體技術(shù)》2017年05期

【摘要】：以水玻璃為硅源、硫酸為沉淀劑傳統(tǒng)化學(xué)沉淀法制備白炭黑,探索原位改性和后處理改性的效果;采用掃描電子顯微鏡、激光粒度分析儀、X射線衍射儀、熱分析儀、傅里葉變換紅外吸收光譜分析改性前后樣品的形貌、團聚體粒徑、結(jié)構(gòu)及改性效果;采用N2吸附測試、DBP值測試對改性前后空間結(jié)構(gòu)度進(jìn)行表征。結(jié)果表明:原位改性比后處理改性工藝效果更好,干燥后聚集體粒子平均粒徑15.59μm;改性后白炭黑表面Si—OH的強度減小,疏水性增強,BET值為112.7 m2/g,吸油值為3.44 m L/g,具有較大的比表面積和空間結(jié)構(gòu)度。
[Abstract]:Silica was prepared by traditional chemical precipitation method with sodium silicate as silicon source and sulfuric acid as precipitator to explore the effect of in-situ modification and post-treatment modification. Scanning electron microscope, laser particle size analyzer, X-ray diffractometer and thermal analyzer were used to prepare silica. Fourier transform infrared spectroscopy (FTIR) was used to analyze the morphology, particle size, structure and modification effect of the samples before and after modification, and the spatial structure degree of the modified samples was characterized by N2 adsorption test and DBP value test. The results showed that the effect of in-situ modification was better than that of post-treatment, and the average particle size was 15.59 渭 m after drying, and the strength of Si-OH on the surface of silica decreased after modification. The hydrophobicity enhancement has a BET value of 112.7 m2 / g and an oil absorption value of 3.44 mL / g, which has a large specific surface area and a large spatial structure.
【作者單位】： 中國礦業(yè)大學(xué)(北京)化學(xué)與環(huán)境工程學(xué)院;中國礦業(yè)大學(xué)(北京)地球科學(xué)與測繪工程學(xué)院;
【基金】：橫向自主科研基金項目,編號:330123
【分類號】：TQ127.2

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