摘要
以多异氰酸酯PM-200、水玻璃、磷酸三丁酯(TBP)、十二至十四烷基缩水甘油醚(AGE)和催化剂DMP-30为原料,制备了聚氨酯/水玻璃矿顶加固复合材料。考察了TBP和AGE用量、放置时间对材料压缩强度的影响,通过扫描电子显微镜、X射线衍射、红外光谱和热重分析表征了复合材料的断面形貌、光谱特征及热稳定性。结果表明,当磷酸三丁酯和稀释剂AGE用量分别为20份和5份(相对100份PM-200和100份水玻璃),得到的材料放置5 d时,抗压强度最高,达到50 MPa,拉伸剪切强度可高达9.1 MPa,且各项技术指标均满足行业标准。
Polyurethane/water glass(PU/WG)reinforcement materials for mines roof were prepared from polyisocyanate PM-200,water glass,tributyl phosphate(TBP),alkyl glycidyl ether(AGE)and catalyst DMP-30.The effects of the content of TBP and AGE,storage time on the compressive strength of the material were investigated.Under the optimal conditions,the fracture morphology,spectral characteristics and thermal stability of PU/WG composites were investigated by scanning electron microscopy,X-ray diffraction,infrared spectroscopy and thermo-gravimetric characterization.The results showed that,when the amount of tributyl phosphate and AGE was 20 parts and 5 parts respectively(based on 100 parts of PM-200 and 100 parts of water glass),the storage time was 5 days,the compressive strength of the obtained material reached the highest value(50 MPa),the shear strength was up to 9.1 MPa,and all technical indexes met the industry standard.
作者
魏珺谊
郭旭青
丁泽强
黄学敏
李飞
WEI Junyi;GUO Xuqing;DING Zeqiang;HUANG Xuemin;LI Fei(Chemical Research Institute,Yangquan Coal Industry(Group)Co.Ltd,Taiyuan 030021,Shanxi,China)
出处
《聚氨酯工业》
北大核心
2019年第6期26-29,共4页
Polyurethane Industry
关键词
聚氨酯
水玻璃
加固材料
复合材料
抗压强度
polyurethane
water glass
reinforcement material
composite
compressive strength
