發(fā)布時間：2019-01-03 08:25

【摘要】：為提高疏水締合聚丙烯酰胺的性能,以1H,1H,2H,2H-十七氟癸烷丙烯酸酯(HFA)為疏水單體,以丙烯酰胺(AM)、丙烯酸(AA)為水溶性單體,采用膠束聚合法合成了含氟疏水締合聚丙烯酰胺(FAPAM)。用紅外光譜儀對產(chǎn)物結(jié)構(gòu)進(jìn)行了表征,研究了AA和HFA加量對FAPAM表觀黏度和相對分子質(zhì)量的影響,考察了FAPAM的耐溫性、抗剪切性、抗鹽性及交聯(lián)性。研究結(jié)果表明,FAPAM為AM、AA、HFA的三元共聚物;AA和HFA加量分別為單體總質(zhì)量的30%～40%和0.5%時,合成的FAPAM的表觀黏度(3376.7 m Pa·s)最大。FAPAM的耐溫性較好,在110℃下放置1 h后的表觀黏度大于100 m Pa·s;FAPAM的抗剪切性較好,在300 r/min下剪切48 h的表觀黏度大于500 m Pa·s;在Na~+或Ca~(2+)質(zhì)量濃度為0.5 g/L時,FAPAM的表觀黏度大于50 m Pa·s,抗鹽性好于PAM(HFA加量為0);在30℃下,FAPAM可與有機(jī)鉻快速交聯(lián)。FAPAM的耐溫性、抗鹽性和耐剪切性均優(yōu)于PAM,可以作為壓裂液稠化劑使用。
[Abstract]:In order to improve the properties of hydrophobically associating polyacrylamide, the hydrophobic monomer of 1H ~ (-1) H ~ (-1) H _ (2) H _ (17) fluorodecane acrylate (HFA) and acrylamide (AM),) acrylic acid (AA) were used as water soluble monomer. Fluorinated hydrophobically associating polyacrylamide (FAPAM).) was synthesized by micellar polymerization. The structure of the product was characterized by infrared spectroscopy. The effects of AA and HFA addition on the apparent viscosity and relative molecular weight of FAPAM were studied. The temperature resistance, shear resistance, salt resistance and crosslinking property of FAPAM were investigated. The results show that FAPAM is a terpolymer of AM,AA,HFA. When the addition of AA and HFA were 30% and 0.5% of the total mass of monomer, the apparent viscosity (3376.7 m Pa s) of the synthesized FAPAM was the largest, and the temperature tolerance of FAPAM was better. The apparent viscosity of the synthesized FAPAM was greater than 100 m Pa s; after being placed at 110 鈩，

本文編號：2399125