【摘要】：利用廢棄粉煤灰制備聚硅酸,以聚硅酸、硼砂為原料,合成了一種高溫延緩型交聯(lián)劑。采用單因素法,通過(guò)測(cè)定硼交聯(lián)劑性能,優(yōu)選出最佳合成工藝參數(shù)為:硼砂5wt%,配體28.5wt%,反應(yīng)溫度80℃,催化劑1.5wt%。并對(duì)合成目標(biāo)產(chǎn)物進(jìn)行了紅外光譜表征,其交聯(lián)的HPG(羥丙基胍膠)凍膠壓裂液的高溫流變性評(píng)價(jià)表明,當(dāng)胍膠濃度為0.45wt%,交聯(lián)比為100∶0.8(體積比)時(shí),110℃,170 s-1的剪切速率條件下,剪切2 h,粘度達(dá)到130 MPa·s以上,證明該交聯(lián)劑對(duì)HPG具有較好的交聯(lián)效果,老化破膠實(shí)驗(yàn)表明其交聯(lián)的壓裂凍膠易破膠返排,殘?jiān)汀?br/>[Abstract]:Polysilicic acid was prepared from waste fly ash. A high temperature retarded crosslinking agent was synthesized from polysilicic acid and borax. By measuring the properties of boron crosslinker by single factor method, the optimum synthesis parameters were obtained as follows: borax for 5 wts, ligand for 28.5 wts, reaction temperature 80 鈩，

本文編號(hào)：2226025