SML超分散剂的合成及在复合材料中的应用

The Synthesis of SML Hyper-Dispersant and Its Application in Composite

介绍了超分散剂对粉体改性机理,并合成了SML超分散剂,考察了其改性超细CaSO4粉体后的活化指数,同时探讨了SML超分散剂对PE/超细能的影响,最后通过SEM观察了复合材料断面形貌。结果表明,SML超分散剂优于F-2分散剂。在其用量为3%时,活化指数可达97%,复合材料的拉伸强度、冲击强度、弯曲强度分别提高了28.7%、20.7%、4.9%。

Mechanism of powder modified by hyper-dispersant was introduced in this paper and synthesized the SML hyper-dispersant. Activation index of modified calcium sulphate powder was investigated, and discussed the effect of SML hyper-dispersant on mechanics property of PE/calcium sulphate composite. Finally, the broken surface of specimen was observed with SEM. The results show that： SML hyper-dispersant excells the F-2 dispersant, when the amount of modifier is 3 %, the activation index reaches 97% and the tensile strength, impact strength and flexural strength of compesite enhances 28.7%, 20.7%, 4.9%, respectively.