摘要
以活性污泥与污染土壤为生物降解介质,对丁羟推进剂粘合体系胶片降解。测试了降解60 d后体系的质量保留率并进行了红外光谱及微观形貌分析。结果表明,胶片质量自降解40 d后趋于恒定,质量保留率约为86%。体系中C=O与C—O含量显著降低,N—H、C—N及C=C含量保持不变。胶片表面呈现不规则坑洞。粘合体系的生物降解主要是其增塑剂组分DOA的降解,网链结构的聚氨酯未被微生物降解。提出针对聚氨酯组分进行解聚预处理,是实现粘合体系深度生物降解的可行途径。
Using activated sludge and contaminated soil as the biodegradation mediums,the HTPB propellant adhesive system film was degraded.The mass retention rate of the system after 60 days of degradation was tested,and the infrared spectroscopy and microscopic morphology were analyzed.The results showed that the mass of the film tended to be constant after 40 days of self-degradation,and the mass retention rate was about 86%.The contents of C=O and C—O in the system were significantly reduced,and the contents of N—H,C—N and C=C remained unchanged.The surface of the film showed irregular pits.The biodegradation of the adhesive system was mainly the degradation of its plasticizer component DOA,and the polyurethane of the network chain structure was not degraded by microorganisms.It was proposed that depolymerization pretreatment for polyurethane components was a feasible way to achieve deep biodegradation of the adhesive system.
作者
胡菲
刘玉存
柴涛
吴凯
HU Fei;LIU Yu-cun;CHAI Tao;WU Kai(School of Environment and Safety Engineering,North University of China,Taiyuan 030051,China)
出处
《热固性树脂》
CAS
CSCD
北大核心
2021年第1期35-38,共4页
Thermosetting Resin
基金
山西省研究生创新项目(2020BY105)
中北大学第16届研究生科技立项项目(20191659)。
关键词
丁羟推进剂
粘合体系
生物降解性
解聚预处理
HTPB propellant
adhesive system
biodegradability
depolymerization pretreatment
作者简介
胡菲(1989—),女,山西太原人,博士,主要从事丁羟推进剂与熔铸炸药相关研究;通讯作者:刘玉存,E-mail:lyc2ct@vip.sina.com。
