非离子阻燃性水性聚氨的合成和表征
Hongping Tong1, Weimin Wang2, Gui Wang1
1School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China peikemei@zstu.edu.cn.
RSC advances
|October 11, 2024
概括
一种新的阻燃剂 (PHAD) 被合成并添加到水性聚氨 (WPU) 中,以创建具有更好的耐火性和热稳定性的非离子阻燃WPU (NFRWPU) 乳液.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 阻燃性是指阻燃性是指阻燃性.
背景情况:
- 水性聚氨 (WPU) 广泛使用,但易燃,现有的阻燃剂在焦炭形成和滴抑制方面存在局限性.
- 为WPU开发有效的阻燃解决方案对于提高消费品和工业应用的安全至关重要.
研究的目的:
- 为了合成一种含有的新型阻燃剂与二基组, (6-(((4-基) (6-((4-基) 氨基) 甲基) dibenzo[c,e][1,2]oxaphosphinine 6-oxide) (PHAD).
- 将PHAD纳入WPU作为链延长剂,制造非离子阻燃水性聚氨 (NFRWPU) 乳液.
- 评估合成的NFRWPU乳液的物理,机械,热稳定性和阻燃性质.
主要方法:
- 合成PHAD并将其纳入WPU.
- 使用福里埃变换红外光谱学和核磁共振对NFRWPU化学结构的表征.
- 使用动态光散射和体力测量评估乳液特性 (颗粒大小,粘度).
- 通过拉力测试来评估机械性能 (拉力强度,破裂时的延长).
- 使用热重力测量分析和限制氧指数测量,研究热稳定性和火焰阻燃性.
主要成果:
- 随着PHAD含量增加的NFRWPU乳液显示了粒子大小和粘度的增加,在12%PHAD下达到106.6nm和89mPa·s.
- 拉力强度最初随着PHAD的添加而增加,最高达到22.63MPa,而破裂时的延伸率降至1060%.
- 观察到更好的热稳定性和阻燃性,最高限制氧指数达到25.6%,最大碳残留增加到6.5%.
结论:
- 合成的PHAD有效地提高了WPU的阻燃性和热稳定性.
- NFRWPU乳液表现出有希望的全面性能,使其适用于需要阻燃的应用.
- 开发的NFRWPU代表了用于增强安全应用的传统WPU的可行替代方案.
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