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首页> 外文期刊>Journal of Applied Polymer Science >Structural effect of prepared and commercial superplasticizers on performance of cement pastes
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Structural effect of prepared and commercial superplasticizers on performance of cement pastes

机译：制备和商用高效减水剂对水泥浆性能的结构影响

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The sodium salt of melamine-phenol formaldehyde sulfonate (MPhFS), melamine formaldehyde sulfonate (MFS), and phenol formaldehyde sulfonate (PhFS) were prepared according to a four-step reaction procedure. The four steps of the reaction are hydroxymethylation, sulfonation, low pH condensation, and high pH rearrangement. Fourier transform IR and differential scanning calorimetry spectra were used to determine the structure of the synthesized resins. The effects of MFS, PhFS, MPhFS, and commercial superplasticizers on the rheological properties of cement pastes were investigated using a rotating coaxial viscometer. It was found that the prepared resins enhanced the rheological properties of cement pastes more than commercial ones. (C) 2003 Wiley Periodicals, Inc. [References: 19]
机译：根据四步反应程序制备了三聚氰胺-苯酚甲醛磺酸盐（MPhFS），三聚氰胺甲醛磺酸盐（MFS）和苯酚甲醛磺酸盐（PhFS）的钠盐。反应的四个步骤是羟甲基化，磺化，低pH缩合和高pH重排。用傅里叶变换红外光谱和差示扫描量热光谱确定合成树脂的结构。使用旋转同轴粘度计研究了MFS，PhFS，MPhFS和市售高效减水剂对水泥浆流变性能的影响。已经发现，所制备的树脂比商业上的树脂更能增强水泥浆的流变性。 （C）2003 Wiley Periodicals，Inc. [参考：19]

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