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A platform for research: civil engineering, architecture and urbanism
Preparation method of super-hydrophilic-underwater super-oleophobic silicon carbide ceramic membrane
The invention discloses a preparation method of a super-hydrophilic-underwater super-oleophobic silicon carbide ceramic membrane, which comprises the following steps: a) adding at least two hydrophilic silicon dioxide nanoparticles with different particle sizes into water to obtain a suspension with the content of the silicon dioxide nanoparticles being 1-3wt%; and b) immersing an unoxidized silicon carbide ceramic membrane into the suspension for modification, taking out the modified silicon carbide ceramic membrane, drying the modified silicon carbide ceramic membrane at 55-65 DEG C for 10-12 hours, then putting the dried silicon carbide ceramic membrane into a muffle furnace, and calcining the dried silicon carbide ceramic membrane at 590-610 DEG C for 25-35 minutes. The preparation method disclosed by the invention not only is simple in preparation process and easy to realize large-scale production, but also can prepare the silicon carbide ceramic membrane which is relatively small in membrane aperture, good in durability, high in oil-water separation efficiency, good in friction resistance, good in corrosion resistance and excellent in comprehensive performance; the oil-water separator can be used for oil spilling accidents in the fields of food, textile, metal processing, pharmaceutical manufacturing, petroleum and natural gas industry and the like and oil-water separation caused by industrial oil-containing wastewater discharge.
本发明公开了一种超亲水‑水下超疏油碳化硅陶瓷膜的制备方法，包括如下步骤：a)将至少两种不同粒径的亲水性二氧化硅纳米颗粒加入水中，得到二氧化硅纳米颗粒含量为1～3wt％的悬浮液；b)将未氧化的碳化硅陶瓷膜浸入到悬浮液中进行改性，取出，先在55～65℃下干燥10～12小时，然后放入马弗炉中，在590～610℃下煅烧25～35分钟。本发明所述制备方法不仅制备工艺简单、易于实现规模化，而且可制得膜孔径较小、耐用性好、油水分离效率高、耐摩擦性能好、耐腐蚀性好等综合性能优异的碳化硅陶瓷膜，可用于食品、纺织、金属加工、医药制造、石油天然气工业等领域溢油事故和工业含油废水排放所引起的油水分离。
Preparation method of super-hydrophilic-underwater super-oleophobic silicon carbide ceramic membrane
The invention discloses a preparation method of a super-hydrophilic-underwater super-oleophobic silicon carbide ceramic membrane, which comprises the following steps: a) adding at least two hydrophilic silicon dioxide nanoparticles with different particle sizes into water to obtain a suspension with the content of the silicon dioxide nanoparticles being 1-3wt%; and b) immersing an unoxidized silicon carbide ceramic membrane into the suspension for modification, taking out the modified silicon carbide ceramic membrane, drying the modified silicon carbide ceramic membrane at 55-65 DEG C for 10-12 hours, then putting the dried silicon carbide ceramic membrane into a muffle furnace, and calcining the dried silicon carbide ceramic membrane at 590-610 DEG C for 25-35 minutes. The preparation method disclosed by the invention not only is simple in preparation process and easy to realize large-scale production, but also can prepare the silicon carbide ceramic membrane which is relatively small in membrane aperture, good in durability, high in oil-water separation efficiency, good in friction resistance, good in corrosion resistance and excellent in comprehensive performance; the oil-water separator can be used for oil spilling accidents in the fields of food, textile, metal processing, pharmaceutical manufacturing, petroleum and natural gas industry and the like and oil-water separation caused by industrial oil-containing wastewater discharge.
本发明公开了一种超亲水‑水下超疏油碳化硅陶瓷膜的制备方法，包括如下步骤：a)将至少两种不同粒径的亲水性二氧化硅纳米颗粒加入水中，得到二氧化硅纳米颗粒含量为1～3wt％的悬浮液；b)将未氧化的碳化硅陶瓷膜浸入到悬浮液中进行改性，取出，先在55～65℃下干燥10～12小时，然后放入马弗炉中，在590～610℃下煅烧25～35分钟。本发明所述制备方法不仅制备工艺简单、易于实现规模化，而且可制得膜孔径较小、耐用性好、油水分离效率高、耐摩擦性能好、耐腐蚀性好等综合性能优异的碳化硅陶瓷膜，可用于食品、纺织、金属加工、医药制造、石油天然气工业等领域溢油事故和工业含油废水排放所引起的油水分离。
Preparation method of super-hydrophilic-underwater super-oleophobic silicon carbide ceramic membrane
一种超亲水-水下超疏油碳化硅陶瓷膜的制备方法
YIN HANG (author) / RAO PINHUA (author) / ZHOU YANG (author) / WANG RUNKAI (author) / YAN LILI (author) / WANG QIONGFANG (author) / HAO ZONGDI (author) / HU TINGTING (author) / ZHANG WENJUAN (author) / ZHANG WENQI (author)
2024-02-06
Patent
Electronic Resource
Chinese
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