本文選題：固井水泥　切入點(diǎn)：自修復(fù)材料　出處：《精細(xì)化工》2017年04期

【摘要】：采用懸浮聚合法,以甲基丙烯酸十二烷基酯(LMA)、苯乙烯(St)、甲基丙烯酸羥乙酯(HEMA)為聚合單體,過(guò)氧化苯甲酰(BPO)為引發(fā)劑,聚乙烯醇(PVA)為分散劑,二乙烯基苯(DVB)為交聯(lián)劑,合成了一種樹(shù)脂并應(yīng)用到固井水泥石中。通過(guò)正交實(shí)驗(yàn)考察了單體、分散劑、引發(fā)劑、交聯(lián)劑、溫度對(duì)三元共聚樹(shù)脂吸油性能的影響。結(jié)果表明:當(dāng)m(LMA)∶m(St)∶m(HEMA)=6∶3∶1、w(PVA)=2.5%(以單體的總質(zhì)量為基準(zhǔn),下同)、w(BPO)=1.0%、w(DVB)=0.5%、t=85℃時(shí),三元共聚樹(shù)脂的吸油性能最佳,二甲苯的吸油率達(dá)12.78 g/g。通過(guò)人工造縫,對(duì)加入樹(shù)脂水泥石的滲透率和抗壓強(qiáng)度進(jìn)行了考察,結(jié)果表明:在25℃下,養(yǎng)護(hù)30 d后,水泥石滲透率隨樹(shù)脂的增加而降低,在w(樹(shù)脂)=8.0%(以水泥質(zhì)量為基準(zhǔn),下同)時(shí)低至2.50×10~(-4)μm~2,而抗壓強(qiáng)度隨樹(shù)脂的增加先增加后減小,在w(樹(shù)脂)=2.0%時(shí)達(dá)到最大值20.8 MPa,抗壓強(qiáng)度恢復(fù)率達(dá)70.5%。
[Abstract]:By suspension polymerization, dodecyl methacrylate (LMAA), styrene stout, hydroxyethyl methacrylate (Hema) were used as polymerization monomer, benzoyl peroxide (BPO) as initiator, polyvinyl alcohol (PVA) as dispersant, divinylbenzene (DVB) as crosslinking agent.A kind of resin was synthesized and applied to cementing cement.The effects of monomer, dispersant, initiator, crosslinking agent and temperature on the oil absorption of terpolymer resin were investigated by orthogonal experiment.緇撴灉琛ㄦ槑:褰搈(LMA)鈭秏(St)鈭秏(HEMA)=6鈭，

本文編號(hào)：1702199