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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 2. Отображено 2.
17-06-2015 дата публикации

Preparation method of super-hydrophobic cellulose aerogel and application of super-hydrophobic cellulose aerogel in oil stain treatment

Номер: CN104710647A
Автор: LU LINGBIN, LIN RUNJUN, MENG FANG, MIAO WEISHENG, LI ANG, ZHENG TINGTING
Принадлежит:

The invention discloses a preparation method of a super-hydrophobic cellulose aerogel and application of the super-hydrophobic cellulose aerogel in oil stain treatment. The light-weight porous cellulose aerogel material is prepared from abundant, renewable and degradable cellulose by using an alkali solution (comprising NaOH solution and NaOH/urea solution) as a solvent system. The minimum density can reach 0.0196 g/cm<3>, and the porosity can reach 99%. Compared with the commercial oil-adsorbing felt material, the cellulose aerogel material has higher adsorbing rate and excellent reusability. The hydrophobic modification method can obtain the super-hydrophobic effect in a quick, effective and energy-saving way, and can implement oil stain collection, oil-water separation and the like in a quick and economical way.

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Номер записи: 1
25-03-2015 дата публикации

In-situ preparation method of cellulose-silicon dioxide composite aerogel

Номер: CN104448397A
Автор: LU LINGBIN, LIN RUNJUN, CAO YANG, LI ANG, HE BIANYANG, LIN CHONG, ZHENG TINGTING
Принадлежит:

The invention discloses an in-situ preparation method of cellulose-silicon dioxide composite aerogel. The cellulose-SiO2 composite aerogel is prepared from cellulose and organic silicon alkoxide as raw materials and aqueous alkali as a solvent and a catalyst; the porosity of the composite aerogel can be up to 96.6%; and the density is 0.052g/cm<3>. The in-situ preparation method is simple, feasible, energy-saving and environment-friendly; the defects of poor dispersing uniformity, low controllability of composite content, poor stability of a composite phase and the like in the prior art are overcome; the prepared composite aerogel material has relatively low heat-conducting coefficient and good heat-insulating property, and has wide application prospects in the fields of civil industry and medium-low temperature heat protection with special requirements; and a basis is provided for application of the composite aerogel material in the field of heat insulation.

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Номер записи: 2