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以镍渣和粉煤灰等工业固体废渣为主要原料制备地聚合物,并对其韧性进行优化。考察了粉煤灰对镍渣基地聚合物抗压强度的影响,并通过力学性能测试和扫描电镜观察研究了聚丙烯纤维(PP纤维)对镍渣-粉煤灰基地聚合物韧性的作用。结果表明,粉煤灰的掺入有利于镍渣基地聚合物抗压强度的提高,50℃养护3d和7d时,粉煤灰掺量为50%的镍渣-粉煤灰基地聚合物的抗压强度分别比镍渣基地聚合物提高了120.3%和119.6%。PP纤维能有效改善镍渣-粉煤灰基地聚合物的韧性,当纤维掺量为1.6%时,50℃养护3d和7d的地聚合物比未掺纤维试样的抗折强度提高了12.5%和25.0%,抗冲击功提高了173.7%和190.5%。
The industrial solid waste residue such as nickel slag and fly ash was used as the main raw material to prepare the polymer and its toughness was optimized. The effect of fly ash on the compressive strength of nickel slag base polymer was investigated. The effect of polypropylene fiber (PP fiber) on the toughness of nickel slag-fly ash base polymer was investigated by mechanical properties test and scanning electron microscope. The results show that the incorporation of fly ash is conducive to the improvement of the compressive strength of the polymer based on nickel slag. At 50 ℃ for 3 days and 7 days, the nickel slag-fly ash base polymer with 50% The compressive strength is respectively 120.3% and 119.6% higher than that of nickel slag base polymer. PP fiber can effectively improve the toughness of the nickel slag-fly ash base polymer. When the fiber content is 1.6%, the flexural strength of the ground polymer cured at 50 ℃ for 3 days and 7 days is 12.5% And 25.0% respectively, impact strength increased by 173.7% and 190.5%.