摘要
利用栲胶部分取代苯酚制改性氨基磺酸系减水剂，研究了其改性工艺。结果表明较佳改性的改性工艺条件为：栲胶占栲胶与苯酚总质量的25％～37．5％。反应时间3h、温度90℃、pH值9．0～11．0。改性产物的分散性能较未改性产物略有下降，但2h流动度损失增大。当掺入量为0．5％，水灰比为0．28：1时。掺改性产物和掺未改性产物的净浆流动度分别为240和252mm。
In this paper the modifying technology.of vegetable tannin in place of phenol partially to produce aminosulfonic acidbased superplasticizer was studied. The result indicates that the better modified technological conditions are as follow：mass percent of vegetable tannin to total vegetable tannin and phenol is between 25 % - 37.5 %, reaction time is about 3 h, temperature is about 90 ℃, and pH is between 9.0 - 11.0. The modified product has a little worse dispersing capability than that of unmodified product, but its slump loss is a little bigger. When the dosage in cement is 0.5 %, and the water-cement ratio is 0.28 ： 1, the fluidity of cement paste added modified and unmodified product is 240 and 252 mm, respectively.
出处
《生物质化学工程》
CAS
2006年第1期13-16,共4页
Biomass Chemical Engineering
基金
中南林学院人才引进基金资助(101-0237)
关键词
栲胶
苯酚
氨基磺酸
高效减水剂
vegetable tannin
phenol
aminosulfonic acid
superplastieizer
