Maskaxda polyacrilamidelka xalka polyacrilamidel badanaa wuxuu ka tarjumayaa iska caabbinta gudaha ee ka dhasha qulqulka ama dhaqdhaqaaqa qaraabada ee u dhexeeya moleekulada dareeraha ah. Iidda ugu caabbinta gudaha waxay la xiriirtaa qaab dhismeedka polymer, sifooyinka dareeraha, uruurinta xalka, iyo heerkulka iyo cadaadiska. Qiimaheeda weyn, ayaa sii kordhaya aragtida xalka.
1. Saamaynta heerkulka ee ku saabsan aragtida polyaccrium
Heerkulka waa mid ka tarjumaya xooga dhaqdhaqaaqa moodada aan caadiga ahayn ee moleekules. Dhaqdhaqaaqa moleekules waa inuu ka gudbaa is-dhexgalka inta u dhexeysa moleekules, iyo is dhexgalka inta u dhexeysa molecules, sida hawada gudaha, kala-goysyada gudaha, hanuuninta silsiladda, iwm, iwm., Iwm. Sidaa darteed, balshaha jawiga xalka polymer-ka ayaa is beddeli doona heerkulka. Saamaynta isbedelka heerkulka ee ku saabsan aragtida xalka polymer waa muhiim. Marksity of polyacrilamidelka xalka polyacrilamidel wuxuu hoos udhacayaa kororka heerkulka. Sababta ayaa ah in soo-fidinta wajiga Wajiga ee xalka polymer xalka polymer-ka ah ay isku dhegan yihiin si ay u sameeyaan qaab dhismeedka shabakadda. Heerkulka sare, waa sahlan tahay in la burburiyo qaab dhismeedka shabakadda, markaa aragtideeda ayaa yaraata.
2. Saamaynta Hydrolysis waqtiga on visycrikeluside
Muuqaalka polyacchacchaluside xalka lagu sameeyo isbeddelada waqtiga hydrolysis waqtiga. Waqtiga gaaban ee hydrolysis-ka, hoos u dhaca codsiga, oo laga yaabo inuu sabab u yahay xaqiiqda ah in polymer-ka uusan waqti u helin qaab dhismeedka shabakadda; Haddii waqtiga hydrolysiysis uu aad u dheer yahay, aragtida ayaa yaraata, taas oo sabab u ah furitaanka qaab dhismeedka cudurka polyaccrilushisi ee xalka. Ka dib markii qayb ahaan biyo-galeenka lagu milmay biyaha, waxay ku kala firidhsan tahay in si xun loo eedeeyo macromoleeces. Bixinta korantada ee ka dhaxaysa moleekuleyaasha iyo cambaareynta anionic ee u dhexeeya qaybaha silsiladaha kala duwan ee isla moleeluule isku mid ah ayaa u keenaya moleekulka si ay u fidiyaan xalka oo ay ka dhigi karaan moleekulka midba midka kale. Tani waa sababta qayb ahaan hydrololyzed polyacridelusidel si weyn u kordhin karo aragtida xalka.
3. Saamaynta macdanta macdanta ee ku saabsan viscosity of polyaccrium
The number of cationic groups in the molecular chain of polyacrylamide is larger than that of anionic groups, the net charge is larger, and the polarity is larger. H2O is a polar molecule. According to the principle of like dissolves like, the polymer has good water solubility and high intrinsic viscosity. With the increase of mineral content, the positive electrostatic charge is surrounded by anions to form an ionic atmosphere, which combines with the surrounding positive electrostatic charge, and the polarity of the polymer solution decreases and the viscosity decreases. With the increase of mineral concentration, the positive and negative ion groups form intramolecular or intermolecular hydrogen bond association (causing the solubility of the polymer in water to decrease). At the same time, the added salt ions shield the positive and negative charges, break up the association between positive and negative ions, and destroy the formed salt bonds (causing the solubility of the polymer in water to increase). These two effects compete with each other, so that the viscosity of the polymer solution remains small at a higher salt concentration (>0.06 mol / L).
4. Saamaynta culeyska molikal ee viscosity of polyaccrium
Muuqaalka xalka cudurka polyacrilamidelka polyacriluside wuxuu kordhaa kordhinta culeyska polymer mowduuca miraha. Tani waa sababta oo ah aragtida qaboojinta xalka polymer-ka waxaa soo saaray is dhexgalka inta u dhexeysa moleekules inta lagu jiro dhaqdhaqaaqa molikalabka. Marka tirada moleculatio moleculacive ee polyces-ka 'ay ku dhowdahay 106, xargaha polymer waxay bilaabaan inay iskood isu abuuraan, taas oo ku filan inay saameyn ku yeeshaan iftiinka iftiinka. Marka nuxurka uu waxyar ka sarreeyo, bilaabista farsamada ayaa ku filan in la saameeyo muuqaalka. Markay nuxurka aad u hooseeyo, xalka polymoner waxaa loo tixgelin karaa qaab dhismeedka shabakadda, iyo buugga farsamada ee makaanikada iyo bogaadin hydrogen-ka oo u dhexeeya silsiladaha isku mid ah waxay sameeyaan nalalka shabakadda. Markuu nuxurka ka sarreeyo, xalka waxaa ku jira silsilad badan - silsilad silsilad ah, taasoo ka dhigeysa in xalka pommer-ka jemmer gel {{]} sidaan. Sidaa darteed, tirada weyn ee qaraabada ee polyculation ee polyces-ka, waa sahlan tahay in moleekuluhu ay sameeyaan isqarxin silsilado, iyo kan weyn ee ah qaboojinta xalka.
