磷酸铵与多聚磷酸铵插层可膨胀石墨的制备  

Preparation of Expandable Graphite Intercalated by Ammonium Phosphate and Ammonium Polyphosphate

作　　者：韩志东[1] 张达威[1] 董丽敏[1] 张显友[1] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,哈尔滨150040

出　　处：《无机化学学报》2007年第2期286-290,共5页Chinese Journal of Inorganic Chemistry

基　　金：黑龙江省自然科学基金项目(No.E200613);黑龙江省教育厅科学技术研究项目(No.11511064);黑龙江省研究生创新基金项目资助

摘　　要：可膨胀石墨（EG）在高温下受热可迅速膨胀。膨胀倍数高达数十倍到数百倍，因而，作为典型的物理膨胀阻燃剂，其研究和应用成为阻燃领域研究的热点。Expandable graphite intercalated by ammonium phosphate （AP） or ammonium polyphosphate （APP） was prepared by direct intercalation and two-step method, respectively. The products from two-step method show higher expansion volume, more weight increase and more weight loss after expansion, suggesting that the two-step method is a favorable method for preparation of APP intercalated EG. XRD provides convincing evidence for successful formation of APP-EG by showing strong diffraction peak at much lower 2θ angle. Scanning electron microscopy （SEM） with energy dispersive X-ray Spectroscopy （EDS） gives more evidence for intercalation of APP in the graphite layers.

关 键 词：石墨 可膨胀石墨 磷酸铵 多聚磷酸铵 

分 类 号：TH145.1[一般工业技术—材料科学与工程] O613.71[机械工程—机械制造及自动化]