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- Title
Two‐step preparation of phosphorus‐containing organoclay and its effect on fire‐resistant and mechanical properties of the flame‐retardant polyethylene composite.
- Authors
Thi, Nhung Hac; Van Hoang, Toan; Doanh, Truong Cong; Oanh, Ho Thi; Dat, Doan Tien; Nguyen, Ha Tran; Le‐Nhat‐Thuy, Giang; Tran, Quang Vinh; Hoang, Mai Ha; Van Nguyen, Tuyen
- Abstract
In this study, a nanohybrid based on montmorillonite (oMMT2) was prepared through a two‐step method using Arquad MCB‐80 and 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO) as intercalation agents. The nanohybrid exhibited a basal spacing of 31.5 Å, which contained approximately 12.3% of Arquad MCB‐80 and 31.6% of DOPO. Various amount of oMMT2 nanohybrid was incorporated into a flame‐retardant polyethylene system containing aluminum trihydroxide and red phosphorus with a constant total additive content of 20 wt%. The dispersibility of oMMT2 in the composite matrix was evaluated by energy dispersive x‐ray mapping and x‐ray diffraction analyses. At a content of 3 wt% in the nanocomposite, oMMT2 showed a highly exfoliated state, while at a 5% content, a partially exfoliated and intercalated state was observed. A synergistic flame‐retardant effect between the nanohybrid and the mixture of aluminum trihydroxide and red phosphorus was found. The nanocomposite loading 3 wt% oMMT2 demonstrated the best flame retardancy, achieving a V‐0 rating of the vertical burning test with a limiting oxygen index of 27.6%. Moreover, the addition of the low oMMT2 contents (≤3 wt%) improved the mechanical properties of the flame‐retardant composite.
- Subjects
ORGANOCLAY; FIREPROOFING agents; FIREPROOFING; POLYETHYLENE; X-ray diffraction; MONTMORILLONITE
- Publication
Journal of Applied Polymer Science, 2024, Vol 141, Issue 32, p1
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.55758