废纸纤维气相防锈气凝胶的绿色制备及性能研究

目的 为了实现气相防锈包装材料基材的多样性，以及废纸的高值化利用，以废报纸为原料制备出一种具有防锈功能的气凝胶。方法 用1-烯丙基-3-甲基咪唑氯盐(AmimCl)对脱墨后的废纸浆进行溶解再生，冷冻干燥后制成气凝胶，再通过化学浸渍法和气相沉积法分别对气凝胶进行疏水和防锈改性。结果 防锈气凝胶对Q235钢的缓蚀率为81.93%，水接触角为104.78°，压缩强度为6.91 kPa，密度为0.22 g/cm³。结论 以废纸为原料制备的气凝胶，经过疏水和防锈改性后，具有优良的气相缓蚀性能，可用于金属元器件的防锈缓蚀。

Green Preparation and Performance of Vapor Phase Antirust Aerogel from Waste Paper Fibre

The work aims to prepare an aerogel with antirust function from waste newspaper, in order to achieve the diversity of substrates for vapor phase antirust packaging materials and the high-value utilization of waste paper. The waste paper pulp after deinking was dissolved and regenerated with 1-allyl-3-methylimidazole chloride salt (AmimCl), and the aerogel was made after freeze-drying, and then hydrophobic and antirust modifications were carried out on the aerogel by chemical impregnation and vapour phase deposition methods, respectively. The corrosion inhibition rate of the antirust aerogel on Q235 steel was 81.93%, the water contact angle was 104.78°, the compressive strength was 6.91 kPa, and the density was 0.22 g/cm3. The aerogel prepared from waste paper has excellent vapor phase corrosion inhibition performance after hydrophobic and antirust modification, and can be used for rust and corrosion inhibition of metal components.