摘要
实验以乙酸、己内酰胺、十二烷二元酸、己二胺为原料通过直接熔融缩聚法合成了高硬度聚酰胺蜡,并用IR进行了结构表征,考察了反应物料用量,聚合温度和聚合时间对反应的影响。适宜的工艺条件为:n(十二烷二元酸、乙酸)∶n(己二胺)=1∶1,n(乙酸)∶n(十二烷二元酸)=8∶2,w(己内酰胺)=50%～60%,聚合温度190～200℃,聚合时间4～5h。所得产物具有较低的滴熔点和超高的硬度,针入度为0mm。
Using acetic acid, caprolactam, 1,12-dodecanedioic acid, 1,6-diaminohexane as raw materi als, the high hardness of polyamide wax was synthesized via direct melt polycondensation reaction. The product was characterized by IR and the effects of the amount of reactants, polymerization ternperature, and reaction time on the product were researched. The optimum conditions were found as follows, the molar ratio of 1,12-dodecanedioic acid or acetic acid to 1,6-diaminohexane of 1 ：1, the molar ratio of acetic acid to 1,12-dodecanedioic acid of 8 ：2, caprolactam dosage 50 %- 60 %, polymer- ization temperature 190 -200 ℃, and reaction time 4 -5 h. The nature of the product was good, having a low dropping point and high hardness, with the penetration of 0 mm.
出处
《精细石油化工》
CAS
CSCD
北大核心
2011年第5期41-45,共5页
Speciality Petrochemicals
关键词
高硬度
聚酰胺蜡
乙酸
己内酰胺
high hardness
polyamide wax
acetic acid
caprolactam
