Biomass intelligent fiber-based amphoteric multifunctional adsorptive material and preparation method and use thereof
US11045789B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2020 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Jun 11, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention discloses a biomass intelligent fiber-based amphoteric multifunctional adsorptive material and a preparation method and use thereof. The material is obtained by using a stepwise dual-temperature stimuli-responsive biomass intelligent fiber as a matrix, a crown ether-modified amphoteric hyperbranched polyamine as a functional reagent, and by using a crosslinking agent to directly crosslink and combine the stepwise dual-temperature stimuli-responsive biomass intelligent fiber with the crown ether-modified amphoteric hyperbranched polyamine in one step. The material has a stepwise dual-temperature stimuli-response, high densities of amino group (more than 12 mmol/g) and carboxyl group (5 mmol/g), and nano cavities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.