固(gu)體聚(ju)(ju)丙(bing)烯(xi)酰胺(acylamide)在使用之(zhi)前,一(yi)般都要(yao)將(jiang)其固(gu)體溶合成溶液,然(ran)后投加使用。聚(ju)(ju)丙(bing)烯(xi)酰胺廠家聚(ju)(ju)丙(bing)烯(xi)酰胺作為(wei)潤(run)滑劑、懸浮劑、粘土(tu)穩定劑、驅油(you)劑、降(jiang)失水劑和(he)增稠(chou)劑,在鉆井(jing)、酸(suan)化、壓裂、堵(du)水、固(gu)井(jing)及二次采油(you)、三次采油(you)中得到了廣(guang)泛(fan)應用,是(shi)一(yi)種極為(wei)重要(yao)的油(you)田(tian)化學(xue)品。
聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺按其(qi)結(jie)構又(you)可分(fen)(fen)(fen)為(wei)非離子(zi)(zi)型(xing)(xing)、陰(yin)離子(zi)(zi)型(xing)(xing)和陽離子(zi)(zi)型(xing)(xing)。陰(yin)離子(zi)(zi)型(xing)(xing)多為(wei)PAM 的(de)(de)水(shui)解體(ti)(HPAM)。聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺的(de)(de)主鏈上帶有(you)大量的(de)(de)酰(xian)(xian)(xian)(xian)胺基,化學活性很(hen)高,可以改性制(zhi)取許多聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺的(de)(de)衍(yan)生物(wu)(wu),產品(pin)(pin)已廣泛(fan)應(ying)用于(yu)造紙、選礦、采油、冶金、建材、污水(shui)處理等行業。聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺廠家聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺為(wei)白色(se)粉(fen)末(mo)或者小顆粒(li)狀物(wu)(wu),密(mi)度(du)(du)為(wei)1.32g/cm3(23度(du)(du)),玻(bo)璃(li)化溫度(du)(du)為(wei)188度(du)(du),軟化溫度(du)(du)近于(yu)210度(du)(du),一般方法(fa)(fa)干(gan)(gan)燥時含有(you)少量的(de)(de)水(shui),干(gan)(gan)時又(you)會很(hen)快從環境中(zhong)(zhong)吸(xi)取水(shui)分(fen)(fen)(fen),用冷(leng)凍干(gan)(gan)燥法(fa)(fa)分(fen)(fen)(fen)離的(de)(de)均聚物(wu)(wu)是(shi)白色(se)松軟的(de)(de)非結(jie)晶固體(ti),但是(shi)當從溶液中(zhong)(zhong)沉淀并(bing)干(gan)(gan)燥后則為(wei)玻(bo)璃(li)狀部分(fen)(fen)(fen)透明的(de)(de)固體(ti),完全干(gan)(gan)燥的(de)(de)聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺PAM是(shi)脆性的(de)(de)白色(se)固體(ti),商品(pin)(pin)聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺干(gan)(gan)燥通常是(shi)在適度(du)(du)的(de)(de)條(tiao)件下干(gan)(gan)燥的(de)(de),一般含水(shui)量為(wei)5%~15%,澆鑄(zhu)在玻(bo)璃(li)板上制(zhi)備的(de)(de)高分(fen)(fen)(fen)子(zi)(zi)膜,則是(shi)透明、堅硬、易碎的(de)(de)固體(ti)。聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺聚丙(bing)(bing)(bing)(bing)烯(xi)(xi)酰(xian)(xian)(xian)(xian)胺是(shi)一種線型(xing)(xing)高分(fen)(fen)(fen)子(zi)(zi)聚合(he)物(wu)(wu),產品(pin)(pin)主要分(fen)(fen)(fen)為(wei)干(gan)(gan)粉(fen)和膠(jiao)體(ti)兩種形式(shi)。
按其(qi)平均分子(zi)(zi)(zi)量(liang)(liang)可分為(wei)低(di)分子(zi)(zi)(zi)量(liang)(liang)(<100 萬)、中分子(zi)(zi)(zi)量(liang)(liang)(200~400 萬)和高(gao)分子(zi)(zi)(zi)量(liang)(liang)(>700萬)三類。現使(shi)用(yong)聚丙烯酰胺用(yong)于污泥(ni)污水處理(li)(chǔ lǐ)行業比較,當天配制好的(de)(de)(de) 溶(rong)(rong)(rong)液(ye)當天使(shi)用(yong)效果很理(li)想,但(dan)是(shi)放置一(yi)段時(shi)間過后,溶(rong)(rong)(rong)液(ye)粘(zhan)度(du)明顯下降(jiang)(descend),效果也不(bu)好。那么(me)主(zhu)要是(shi)由哪些因素(factor)引起的(de)(de)(de) 呢? 一(yi)般分子(zi)(zi)(zi)量(liang)(liang)越高(gao)的(de)(de)(de) 聚丙烯酰胺的(de)(de)(de) 溶(rong)(rong)(rong)液(ye)粘(zhan)度(du)越大(da),這是(shi)因為(wei)聚丙烯酰胺大(da)分子(zi)(zi)(zi)是(shi)細而長的(de)(de)(de) 鏈狀體(ti),在溶(rong)(rong)(rong)液(ye)中運動的(de)(de)(de) 阻力很大(da)。粘(zhan)度(du)的(de)(de)(de) 實質是(shi)反映(ying)溶(rong)(rong)(rong)液(ye)內磨擦力的(de)(de)(de) 大(da)小,亦(yi)稱為(wei)內磨擦系數。各種高(gao)分子(zi)(zi)(zi)有機物的(de)(de)(de) 溶(rong)(rong)(rong)液(ye)的(de)(de)(de) 粘(zhan)度(du)都比較高(gao),并隨分子(zi)(zi)(zi)量(liang)(liang)升高(gao)而增大(da)。測定(ding)(ding)(ding)高(gao)分子(zi)(zi)(zi)有機物分子(zi)(zi)(zi)量(liang)(liang)的(de)(de)(de) 一(yi)種方法,測定(ding)(ding)(ding)一(yi)定(ding)(ding)(ding)濃度(du)溶(rong)(rong)(rong)液(ye)在一(yi)定(ding)(ding)(ding)條件下的(de)(de)(de) 粘(zhan)度(du),再按一(yi)定(ding)(ding)(ding)的(de)(de)(de) 公(gong)式計(ji)算其(qi)分子(zi)(zi)(zi)量(liang)(liang),稱為(wei) ;推定(ding)(ding)(ding)分子(zi)(zi)(zi)量(liang)(liang) ;。
而(er)聚丙(bing)烯(xi)酰(xian)胺溶液(ye)的(de) 特(te)性(xing)(xing)粘度 [η] 與其(qi)分子(zi)量(liang)m 之間有(you)如下的(de) 指數(shu)函數(shu)關系 : [η] = 3。73 × 10-4 × m 0.66 經(jing)驗(experience)表明(ming),聚丙(bing)烯(xi)酰(xian)胺的(de) 絮(xu)凝(ning)性(xing)(xing)能(neng)(neng)與它(ta)的(de) 溶液(ye)粘度有(you)直接的(de) 關系,粘度越高者(zhe)性(xing)(xing)能(neng)(neng)越好,說分子(zi)量(liang)越高的(de) 聚丙(bing)烯(xi)酰(xian)胺產品性(xing)(xing)能(neng)(neng)越優;如果它(ta)的(de) 粘度受到(dao)某些因(yin)素的(de) 影響而(er)降低(di)(reduce),其(qi)絮(xu)凝(ning)性(xing)(xing)能(neng)(neng)必然下降。