Lignocellulose nanofibril material, stable foam system based thereon, preparation method and application thereof

US11339254B2 · kind B2 · utility

Assignees

• Southwest Petroleum University · CN
• Tianjin University of Science and Technology · CN

Inventors

• Bing WEI · Hunan, CN
• Yangbing Wen · Tianjin, CN
• Yuanyuan Wang · Beijing, CN
• Wanfen Pu · Chengdu, CN
• Shengen Chen · Chengdu, CN

Key dates

• Filing date: Apr 15, 2019
• Grant date: May 24, 2022
• Expiry date: Jul 29, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2208/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A lignocellulose nanofibril material, a stable foam system based thereon, a preparation method and an application thereof are provided. The lignocellulosic nanofibril material includes the following components: 0.5-20 wt % of wood flour, 0.1-10 wt % of (2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl, 2-25 mmol/g of an oxidant, 6-15 wt % of NaBr, and the remaining is water. The stable foam system based on the lignocellulosic nanofibril material includes: 0.1-1.0 wt % of the lignocellulosic nanofibril material, 0.2-1.0 wt % of a surfactant, 0.1-10 wt % of sodium chloride, 0.1-1.0 wt % of calcium chloride, 0.1-1.0 wt % of magnesium chloride, 0.1-1.0 wt % of sodium sulfate, and a balance of water.