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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis, characterization, and application of the sodium poly(styrenesulfonate) produced from waste polystyrene cups as an admixture in concrete
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Synthesis, characterization, and application of the sodium poly(styrenesulfonate) produced from waste polystyrene cups as an admixture in concrete

机译：废聚苯乙烯杯中的聚苯乙烯磺酸钠作为混凝土外加剂的合成，表征和应用

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摘要

Wasted polystyrene (PS) plastic cups were used in the synthesis of sodium poly(styrenesulfonate) (NaPSS). The produced polyelectrolyte was water-soluble. The viscosimetric molecular weight was 126,146 g mol(-1). The sulfonation of the polymer was estimated through FTIR spectroscopy and chemical analysis of the number of sulfonic groups. The presence of bands at 1326 and 1188 cm(-1) in the infrared spectra was characteristic for sulfonic groups. The polymer was obtained with 60.3% of sulfonation. An aqueous solution of NaPSS was used as an admixture in concrete of portland cement. The results showed that the slump increasing of the concrete was up to 300% with 0.3% content of NaPSS per weight of cement. It was possible to reduce the water content of the concrete in 13.2% using NaPSS solution as an admixture. The compressive strength gain was 23.9% after 28 days of curing. The results indicated that NaPSS, produced from waste PS cups, can be satisfactorily used either as a plasticizer or as an admixture for water reduction in concrete. (c) 2005 Wiley Periodicals, Inc.
机译：废聚苯乙烯（PS）塑料杯用于合成聚（苯乙烯磺酸钠）（NaPSS）。产生的聚电解质是水溶性的。粘度分子量为126,146 g mol（-1）。通过FTIR光谱和磺酸基团数目的化学分析来估计聚合物的磺化。磺酸基团的特征是红外光谱中1326和1188 cm（-1）处的谱带存在。获得具有60.3％磺化的聚合物。 NaPSS水溶液用作硅酸盐水泥混凝土中的外加剂。结果表明，当NaPSS含量为每水泥重量0.3％时，混凝土的坍落度增加高达300％。使用NaPSS溶液作为掺合料可以将混凝土的含水量降低13.2％。固化28天后，抗压强度增加为23.9％。结果表明，由废PS杯生产的NaPSS可以令人满意地用作增塑剂或混凝土减水剂。 （c）2005年Wiley Periodicals，Inc.

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