Sustainable synthesis of uniform silica microspheres from green liquor of wheat straw pulping and application in natural rubber
Sustainable synthesis of uniform silica microspheres from green liquor of wheat straw pulping and application in natural rubber
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麦草制浆绿液可持续合成均匀二氧化硅微球及其在天然橡胶中的应用
DOI：
10.1063/1.5012118
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发表时间：
2018-01
影响因子：
2.5
通讯作者：
Sun Juncai
中科院分区：
文献类型：
--
作者：
Li Donghan;Wang Lixia;Liao Mingyi;Jiang Kuo;Man Jianzong;Yin Jinpeng;Cui Jinlong;Cheng Fupeng;Sun Juncai
为了有效回收麦草碱法制浆废液中的碱类化学品，采用环境友好的方法去除麦草碱法制浆绿色废液中的硅酸盐。以小麦秸秆绿色液（WSGL）为原料，以二氧化碳（CO2）为沉淀剂，无水乙醇为分散剂，在不同搅拌速率下制备了SiO2微球。在pH值为8.6、搅拌速率为100 r min-1、乙醇添加量为60 ml的最佳合成条件下，得到的具有窄尺寸分布的SiO2微球具有直径约为190 nm的无定形结构。在此优化工艺条件下，WSGL对SiO2的去除率（SRT）可达99%以上。除CO2外，所设计工艺中使用的化学试剂均得到了有效使用。WSGL法制备的SiO2微球可作为补强剂提高天然橡胶的力学性能。
In order to recycle alkali chemicals from wheat straw alkaline pulping waste liquor effectively, an environmentally friendly route was developed to remove silicate containing in the green liquor of wheat straw pulping. In this route, silica (SiO2) microspheres were synthesized from wheat straw green liquor (WSGL) using carbon dioxide (CO2) as the precipitating reagent and anhydrous ethanol as the dispersant at different stirring rates. The resulting SiO2 microspheres with narrow size distribution had an amorphous structure with a diameter of about 190 nm under the optimal synthesis conditions with a pH value of 8.6, a stirring rate of 100 r min−1, and an ethanol addition amount of 60 ml. In this optimized route, the SiO2 removal rate (SRT) of WSGL was more than 99%. Except CO2, all the chemical reagents used in the designed process had been validly used. The SiO2 microspheres obtained from WSGL could be used as reinforcing agents to strengthen the mechanical properties of natural rubber.
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影响因子：
5.2
作者：
Zulkifli, Noor Sheeraz Che;Ab Rahman, Ismail;Husein, Adam
通讯作者：
Husein, Adam
影响因子：
5.2
作者：
Xiaojun Zhang;Z. Zhao;Guangjun Ran;Yan Liu;Shuang Liu;Bing Zhou;Zichen Wang
通讯作者：
Xiaojun Zhang;Z. Zhao;Guangjun Ran;Yan Liu;Shuang Liu;Bing Zhou;Zichen Wang
影响因子：
5.1
作者：
Rattanasom, N.;Saowapark, T.;Deeprasertkul, C.
通讯作者：
Deeprasertkul, C.
影响因子：
5.2
作者：
Kow, Kien-Woh;Yusoff, Rozita;Abdullah, E. C.
通讯作者：
Abdullah, E. C.
影响因子：
9.4
作者：
Haiying Wang;Yi-long Bai;Sheng Liu;Jiali Wu;C. Wong
通讯作者：
Haiying Wang;Yi-long Bai;Sheng Liu;Jiali Wu;C. Wong