改性粉煤灰对双组分聚氨酯弹性体性能的影响  

Effect of modified fly ash on property of two-component polyurethane elastomer

作　　者：王丽洁[1] 刁建志[1,2] 邵迪[1] 郑学涛 

机构地区：[1]石家庄铁道大学材料科学与工程学院,石家庄050043 [2]河北省交通工程材料重点实验室,石家庄050043 [3]石家庄铁道大学土木工程学院,石家庄050043

出　　处：《化工新型材料》2016年第3期217-219,共3页New Chemical Materials

摘　　要：采用硅烷偶联剂(KH-560)为改性剂对粉煤灰表面进行改性。以聚醚多元醇(TDB2000、TMN3050)、二苯基甲烷二异氰酸酯(MDI-50)为原料,合成聚氨酯弹性体预聚体,选用粉煤灰作为填料,制得聚氨酯/粉煤灰复合材料。研究了粉煤灰对复合材料的抗压强度、弹性模量、耐碱性和耐盐性等性能的影响。结果表明:聚氨酯/改性粉煤灰复合材料与聚氨酯/未改性粉煤灰复合材料、纯聚氨酯弹性体相比较,具有优异的耐抗压强度、耐碱性、耐盐性及较高的弹性模量等。The surface of fly ash was modified by using silane coupling agent KH-560.Polyurethane prepolymer was synthesized through polyether polyol（TDB2000,TMN3050）and diphenyl methane diisocyanate（MDI-50）.Polyurethane/fly ash composite was prepared used fly ash as filler added into polyurethane prepolymer.The influences of fly ash on compressive strength,elastic modulus,alkali resistance,salt resistance and other properties of composite were investigated.The results indicated that the polyurethane/modified fly ash composite,in comparison with polyurethane/unmodified fly ash and pure polyurethane elastomer composite,had excellent resistance to compressive strength,alkali resistance,salt resistance and high elastic modulus and other performance.

关 键 词：聚氨酯弹性体 粉煤灰 复合材料 硅烷偶联剂 

分 类 号：TQ334.1[化学工程—橡胶工业]