摘要
以异丙醇为溶剂、氯铂酸为催化剂,将单烯丙基封端聚氧乙烯聚氧丙烯醚(AEP)、单烯丙基封端聚氧乙烯聚氧丙烯环氧基醚(AEPH)和单烯丙基封端聚氧乙烯氧聚丙烯乙酰基醚(AEPC)同时与含氢硅油进行硅氢加成反应,合成了羟基封端聚醚、环氧基封端聚醚和乙酰基封端聚醚共改性硅油破乳剂。通过IR和1H NMR对产物结构进行表征,证实得到了预期产物。通过单因素实验法考察了碳碳双键与硅氢键的量之比[n(CC)∶n(Si—H)]、反应时间、反应温度和催化剂用量对活性氢转化率的影响,确定的最佳反应条件为:n(CC)∶n(Si—H)=1.20∶1,反应时间6 h,反应温度100℃,催化剂用量40μg/g(相对于反应物总质量),在此条件下活性氢转化率达到93.72%。将该聚醚改性硅油进行原油破乳性能测试,结果显示,在聚醚改性硅油用量为100 mg/L、破乳温度70℃条件下,加入聚醚改性硅油2 h后,原油脱水率达到90.54%,具有较好的破乳性能。
Grafted polysiloxane polymers were synthesized through hydrosilylation of hydridosilicone oil with hydroxyl,epoxy,or polyether groups terminated polyethers in the solution of isopropyl alcohol,chloroplatinic acid as the catalyst,respectively. The functional terminated polyethers were allyl poly（ oxyethyleneoxypropylene） ether（ AEP）,allyl poly（ oxyethylene-oxypropylene） epoxy ether（ AEPH） and allyl poly（ oxyethylene-oxypropylene） acetyl ether（ AEPC）. IR and1 H NMR were used to characterize the structure of the product and proved that the expected product was obtained. By single factor experiment,the influence of mole ratio of carbon double bond and silicon hydrogen bond,reaction time,temperature and catalyst dosage on the conversion of hydrogen was studied. The optimum reaction conditions were determined as follows： n（ C = C） ∶n（ Si—H） = 1. 20∶ 1,reaction time of 6 h,reaction temperature of 100 ℃,and catalyst dosage of 40 μg / g（ relative to the total mass of reactants）,under which the conversion rate reached 93. 72%. The demulsification temperature of 70 ℃ and 100 mg / L polyether modified silicone fluid after 2 hours resulted in the dehydration rate of 90. 54%,with good demulsification performance.
出处
《有机硅材料》
CAS
2015年第1期18-22,共5页
Silicone Material
关键词
羟基
环氧基
乙酰基
聚醚
含氢硅油
硅氢加成
破乳剂
原油
hydroxyl
epoxy
polyether
hydrogen-containing silicone fluid
hydrosilylation
demulsifier
crude oil
