摘要
以多异氰酸酯PM-200、聚氧化丙烯二醇、水玻璃、丙三醇、二甲基苄胺(BDMA)、二月桂酸二丁基锡(DBTDL)和邻苯二甲酸二丁酯(DBP)为原料制备了聚氨酯/水玻璃复合注浆材料。研究了水玻璃模数从2.4到2.8变化时对注浆材料最高反应温度、固化时间、氧指数及力学性能的影响,通过扫描电子显微镜、X射线衍射、N_(2)吸脱附、红外光谱对注浆材料的结构、形貌及组成进行分析,研究水玻璃模数变化对注浆材料的作用机理。结果表明,水玻璃模数为2.6时,注浆材料的孔结构较好、最高反应温度低于100℃,抗压强度大于40 MPa,符合安全生产行业新标准的要求。
Polyurethane/water glass grouting material were prepared from polyisocyanate PM-200,polyoxypropylene glycol,water glass,glycerol,dimethylbenzylamine(BDMA),dibutyltin dilaurate(DBTDL)and dibutyl phthalate(DBP).The effects of the water glass modulus from 2.4 to 2.8 on the maximum reaction temperature,curing time,oxygen index and mechanical properties of the material were studied.The structure and the mechanism of the material were investigated by scanning electron microscopy,X-ray diffraction,N_(2) absorption and desorption,and infrared spectroscopy.The results showed that,when the water glass modulus was 2.6,the pore structure of the material was better,the maximum reaction temperature was lower than 100℃and the compressive strength was greater than 40 MPa,which met the requirements of the new standard for safety production industry.
作者
张豫
柏广峰
王玉超
赵昕楠
于潇沣
王丹
ZHANG Yu;BAI Guangfeng;WANG Yuchao;ZHAO Xinnan;YU Xiaofeng;WANG Dan(Coal Science and Technology Research Institute Co.Ltd,Mining Materials Branch,Beijing 100013,China)
出处
《聚氨酯工业》
CAS
2021年第6期28-31,共4页
Polyurethane Industry
基金
2020年度煤科院科技发展基础项目(2020CX-II-12)。
关键词
聚氨酯
水玻璃
注浆材料
模数
力学性能
polyurethane
water glass
grouting material
modulus
mechanical property
