We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Preparation of a novel bio‐based aerogel with excellent hydrophobic flame‐retardancy and high thermal insulation performance.
- Authors
Zhang, Ruike; Fu, Yan; Qin, Wangping; Qiu, Shuaishuai; Chang, Jie
- Abstract
Sodium‐alginate‐based aerogels possess wide prospects in the fields of packaging, aerospace, industrial construction and transportation because of their environmental compatibility and thermal insulation, but it is still a challenge to obtain a sodium alginate‐based aerogel with high flame retardancy and good thermal insulation. Herein, a sodium‐alginate‐based aerogel with high flame retardancy, thermal insulation and good hydrophobic properties was prepared by two‐step crosslinking strategy of phytic acid and metal ions and liquid phase deposition of trans‐cinnamic acid. As a result, the prepared SA/PA Mn+ aerogels obtained excellent flame retardancy (UL‐94 V‐0, LOI 50.1%) and rapid self‐extinguishing, and SA/PA Mn+ aerogels obtained good hydrophobic ability (CA = 134.2°). In addition, the mechanical properties of SA/PA Mn+ aerogels have also been improved, the compressive modulus increased from 0.66 to 6.37 MPa, and the specific modulus increased from 15.7 to 140.2 MPa cm −3 g−1. This research broadens the application of bio‐based flame‐retardant aerogels in the fields of packaging, aerospace, industrial construction and transportation.
- Subjects
THERMAL insulation; FIREPROOFING; AEROGELS; ACID deposition; PHYTIC acid; ALGINATES
- Publication
Journal of Applied Polymer Science, 2024, Vol 141, Issue 21, p1
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.55416