摘要
以洗油、工业萘为原料,设计并合成了一种萘系高效减水剂。采用单因素法与正交法对合成工艺参数进行调整优化,并通过水泥净浆和混凝土试验检测了所合成萘系高效减水剂与水泥的适应性及减水增强性能。结果表明:掺洗油的萘系高效减水剂的磺化温度和缩合时间与未掺洗油的相当,但前者的磺化时间要适当延长,硫酸用量要适当增加,甲醛用量要适当减小;在合成工艺参数优化调整的基础上,洗油可取代25%～30%的工业萘,而萘系高效减水剂性能基本不变,但成本得以大幅度降低。
With the main materials of wash oil, naphthalene, a style naphthalene superplasticizer was success fully designed and synthesized by optimal design of chemical synthesis. The synthesis process parameters with single- factor and orthogonal experiment were optimized and regulated, and the adaptability with cement, compressive strength and water reducing rate of concrete mixed with the best technology-synthetic naphthalene superplasticizer were measured. The results show that the sulfonation temperature, condensation time of the naphthalene superplastici- zer synthesized with part of wash oil is equivalent to those synthesized with all crude naphthalene, but the sulfonation time should be extended, sulfuric acid content should be increased, and formaldehyde content of former should be re- duced, respectively. On the basis of optimization of synthesis process parameters, wash oil could take 25^--30~ of crude naphthalene, the naphthalene superplasticizer owns same property essentially but enjoys a significant reduction in costs.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2013年第4期113-116,共4页
Materials Reports
基金
陕西省工艺攻关课题(2010k10-03)
关键词
萘系高效减水剂
洗油
合成工艺
性能
naphthalene superplasticizer, wash oil, synthesis process,property
