主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

消防科学与技术 ›› 2024, Vol. 43 ›› Issue (10): 1419-1423.

• • 上一篇    下一篇

壳聚糖盐酸盐改性锂辉石基地质聚合物阻燃涂料的制备及表征

刘小丽   

  1. (广东科学技术职业学院 建筑工程学院,广东 珠海 519090)
  • 收稿日期:2024-03-06 修回日期:2024-05-16 出版日期:2024-10-15 发布日期:2024-10-15
  • 作者简介:作者简介:刘小丽(1980- ),女,山西阳城人,广东科学技术职业学院建筑工程学院高级工程师,主要从事低碳建筑技术等研究,广东省珠海市金湾区珠海大道65号,519090,3314035189@qq.com。
  • 基金资助:
    基金项目:智能绿色建筑技术与海绵城市建设工程中心(K01057058)

Preparation and characterization of chitosan hydrochloride modified spodumene-based geopolymer flame-retarding

Liu Xiaoli   

  1. (Guangdong Polytechnic of Science and Technology, Guangdong Zhuhai 519090, China)
  • Received:2024-03-06 Revised:2024-05-16 Online:2024-10-15 Published:2024-10-15

摘要: 面向锂辉石尾矿堆放造成的环境污染和提高建材被动防火性能的需求,本研究基于化学改性技术,制备了壳聚糖盐酸盐改性锂辉石基地质聚合物Si-C-P阻燃涂料。锥形量热仪测试结果表明:适量的壳聚糖盐酸盐(质量分数0.8%)改性使复合涂层的阻燃性能指数(FRI)从1.00增加到3.52,总产烟量(TSP)由3 347.16 m2减少至1 688.66 m2。壳聚糖盐酸盐促使形成针状无定形炭,增加了残留物的比表面积,形成了更具弹性和强韧的Si-C-P复合材料残留物,增强了地质聚合物涂层的阻燃性。

关键词: 锂辉石, 阻燃, 壳聚糖, 地质聚合物, 微结构

Abstract: In view of the pollution caused by spodumene tailings stacking and improving passive fire resistance of building materials, this study prepared spodumene-based geopolymer Si-C-P flame-retarding coatings through chitosan hydrochloride modification technology. Cone calorimeter test results show that: Appropriate amount of chitosan hydrochloride (mass fraction of 0.8%) enhanced the flame retardant index (FRI) of the composite coating increasing from 1.00 to 3.52, and the total smoke production (TSP) decreased from 3 347.16 m2 to 1 688.66 m2. The acicular amorphous carbon formed by chitosan hydrochloride increased the specific surface area of the residue. The more resilient and robust Si-C-P composite residues formed, improving the flame retardancy of the geopolymer coating.

Key words: spodumene, flame retardant, chitosan, geopolymer, microstructure