17.2 Boikemisetso ba Boleng ba Starch ka Lipolima tse qhibilihang ka Metsi
17.2.1 Molao-motheo
17.2.1.1 Sepheo sa teko ena ke ho fumana hore na ho na le lintho tse tsoang ho starch kapa starch ka har'a lipolima tse qhibilihang ka metsing tse phofshoana kapa tse granular tse kang PAC-LV.
17.2.1.2.Ho sibolloa ha tharollo ea PAC-LV ka ho eketsa tharollo ea mineral/iodide*
Haeba amylose e le teng, e etsoa ka mokhoa o rarahaneng oa mebala.
17.2.2 Li-reagents le lisebelisoa
a) Metsi a hloekisitsoeng kapa a qhibilihisitsoeng
b) Tharollo ea Nitrate, mohlala, Merck 1.09.089.1000 (CAS No. 7553-56-2) 7) 0.05.
c) Potassium iodide 1 Merck 1.0504 3.0250 PA (CAS No. 7681-11-0
d) Sodium hydroxide (NaOH) (CAS No. 1310-73-2): tharollo ea dilute, 0.1% -0.5%.
17.2.3 Lisebelisoa
17.2.3.1 Stirrer 1ta Model 98 Multi-shaft Stirrers e nang le 9B29X impeller kapa lehare le lekanang le le leng.
sebopeho sa maqhubu a sinusoidal,blade bophara approx.25 mm (lin, sefahleho se phunyeletsoeng holimo).
17.2.3.2 Mohope oa pherekano o na le boholo ba hoo e ka bang 180 mm (7.1 in) botebo, 97 mm (3-5/6 in) bophara ba
molomo o ka holimo,le 70 mm (2.75 in) bophara ba setsi se ka tlase (mohlala M110-D mofuta oa Hamilton Beachkopi e tsosang
kapa ntho e lekanang).(Khalase ea 600 ml le eona e ka sebelisoa e le sebaka.)
17.2.3.3 Likhaba tsa laboratori.
17.2.3.4 Scraper.
17.2.3.5 Tekanyo: Ho nepahala ke 0.01 g.
17.2.3.6 li-flasks tsa volumetric 100ml
17.2.3.7 Liphaephete tsa Pasteur kapa lipolasetiki tsa dropper.
17.2.3.8 Nako: Mechini kapa elektroniki, ho nepahala 0.1 mets.17.2.3.9 pH metres le pH electrode:
mohlala Thermo Russell mofuta oa KDCW1 19)
17.2.3.10 Lisebelisoa tsa ho fepa ka polymeric (mohlala, Fann 10) kapa 0Fl mofuta oa 11))
17.2.3.11 Li-tubes tsa liteko.
17.2.4 Mokhoa - Tokiso ea Tharollo ea Iodine / Potassium Iodide
17.2.4.1 Eketsa 10 μl ± 0.1 ml ea 0.05 mol / l tharollo ea iodine ho 100 ml ± 0.1 ml volumetric flask.
17.2.4.2 Eketsa 0.60 g±..01 g Potassium iodide (KI), sisinya botlolo ka bonolo ho e qhaqha.
17.2.4.3 Eketsa metsi a ntšitsoeng ho letšoao la 100 ml 'me u kopanye hantle.Ngola letsatsi la litokisetso.
17.2.4.4 Motsoako o entsoeng ka iodine/iodide o bolokoa ka sejaneng se koetsoeng ebe o bolokoa sebakeng se lefifi, se phodileng le se omileng.
Letsatsi la ho felloa ke nako ke likhoeli tse tharo 'me le lokela ho lahloa le ho tsosolosoa.
17.2.5 Mokhoa - Tokisetso ea Tharollo ea PAC-LV le ho Fumana Starch
17.2.5.1 Lokisetsa mokelikeli oa metsi oa 596 oa PAC-LV o tla lekoa.
Kenya 380 g ± 0.1 g ea metsi a ntšitsoeng ka har'a senoelo sa ho kopanya, eketsa 2 g ± 0.1 g ea PAC-LV ka lebelo le ts'oanang.
ha u ntse u hlohlelletsa moferefere,'me nako ea ho eketsa e lokela ho tsoela pele bakeng sa 60 s ho 120 s.
Mohlala o lokela ho eketsoa moferefereng ka komiking e tsoakang, 'me u qobe ho sisinya shaft ho fokotsa lerole.
Ho molemo ho sebelisa sesebelisoa sa ho tjhaja polymer ho 17.2.3.10.
17.2.5.2 Ka mor'a ho sisinya metsotso e 5 ± 0.1 min, tlosa kopi e ts'oarellang ho tswa ho "stir" 'me u hlakole li-PAC-LV tsohle tse khomaretsoeng.
lebota la mohope ka spatula.Li-PAC-LV tsohle tse khomaretsoeng ho scraper li ne li tsoakane le tharollo.
17.2.5.3 Lekanya pH ea tharollo.Haeba pH e le ka tlase ho 10, eketsa tharollo e hlapollang ea NaOH dropwise.
Eketsa pH ho isa ho 10
17.2.5.4.Khutlisetsa kopi e tsosang takatso ho moferefere 'me u tsoele pele ho susumetsa.Nako eohle ea ho susumetsa e lokela ho ba 20 min ± 1 Min.
17.2.5.5 Beha 2 ml ea tharollo ea sampole ka har'a tube ea teko 'me u kenye marotholi a 3 a tharollo ea iodine/iodide,
ho fihlela ho marotholi a 30.
17.2.5.6 Lokisetsa litlhahlobo tse tharo tse se nang letho tse nang le metsi a se nang letho.Kenya marotholi a 3, marotholi a 9, marotholi a 30 a tharollo ea iodine / iodide ho
li-tubes bakeng sa liteko tsa ho bapisa.
17.2.5.7 Ka mor'a ho eketsa marotholi a 3 a tharollo nako le nako, sisinya tube ka bonolo ho bapisa 'mala oa tharollo ea mohlala.
ka teko e se nang letho.Papiso ea mebala e lokela ho etsoa khahlanong le mokokotlo o mosoeu.
17.2.6 Boikemisetso - PAC-LV Setache sa ho lemoha
17.2.6.1 Haeba mohlala oa tharollo e lokelang ho lekoa o bontša 'mala o mosehla o tšoanang le oa teko e se nang letho, mohlala ha o
e na le lintho tse tsoang ho starch kapa starch.
17.2.6.2 Haeba ho na le 'mala o mong, ho bontšoa ka matla hore ho na le motsoako oa starch kapa starch.
17.2.6.3 Haeba 'mala o bonahala o nyamela kapele, o bontšang boteng ba moemeli oa ho fokotsa, tabeng ena,
tsoela pele ho eketsa dropwise iodine / iodide Tharollo, papiso ea mebala le e 'ngoe ea liteko tse se nang letho, bona 17.2.61.
17.2.6.4 Haeba karabelo leha e le efe ea 'mala e fapaneng le 17.2.6.1 e fumanoa, ha ho hlokahale ho tsoela pele ka teko e latelang.
17.3 Mongobo
17.3.1 Apparatus 17.3.1.1 Ovine: E laoleha ho 105 ° C± 3 ° C (220±5>.
17.3.1.2 Tekanyo: Ho nepahala ha 0.01 g.
17.3.1.3 Sejana sa mouoane: Bokhoni ba 150 ml.
17.3.1.4 Scraper.
17.3.1.5 Desiccant: E na le desiccant (CAS No. 7778-18-9) desiccant, kapa e lekanang
17.3.2 Mokhoa oa Teko
17.3.2.1 Boima ba 10 g ± 0.1 g sampole ea PAC-LV ho behoa Sejaneng se fetohang mouoane, rekota boima ba sampole m.
17.3.2.2 Omisa mohlala ka ontong bakeng sa 4 h
17.3.2.3 Folisa sampole ka har'a setlolo ho ea mochesong oa kamore17.3.2.4 Lekola sejana se fetohang mouoane se nang le mouoane.
PAC-LV e omisitsoeng, rekota boleng ba sampole e omileng m2.
17.3.3 Palo
17.4 Ho lahleheloa ke metsi
17.4.1 Lisebelisoa le lisebelisoa
17.4.1.1 Letsoai la leoatle: Lekola mobu ho latela ASTM D 1141-98 (2003) 12
17.4.1.2 API e tloaelehileng.
17.4.1.3 Potassium Chloride (CAS No. 7447-40-7)
17.4.1.4 Sodium Bicarbonate (CAS No. 144-55-8).
17.4.1.5 Metsi a hloekisitsoeng kapa a qhibilihisitsoeng.
17.4.2 Lisebelisoa
17.4.2.1 Thermometer: Sebaka sa ho lekanya ke 0 °C ~ 60 °C, ho nepahala ke 0.5 °C
(lebaka la ho lekanya ke 32 °F ~ 140 °F, ho nepahala ke 1.0 °F)
17.4.2.2 Tekanyo: Ho nepahala ke 0.01g.
17.4.2.3 Stirrer: Haeba mofuta oa 9B multi-shaft stirrer o na le 9B20x impeller,shaft e lokela ho kenngoaa
lesohalehare la leqhubu la sine le bophara ba lehare la hoo e ka bang limilimithara tse 25 (1 in) 'me sefahleho se tiisitsoe holimo.
17.4.2.4 Mohope oa pherekano o na le boholo ba hoo e ka bang 180 mm (7.1 in) botebo, 97 mm (3-5/6 in) bophara ba
molomo o ka holimo,le 70 mm (2.75 in) bophara ba setsi se ka tlaase (mohlala, M110-D mofuta oa Hamilton Beach kopi e susumetsang).
17.4.2.5 scraper.
17.4.2.6 Setshelo: Khalase kapa polasetiki, e nang le sekoahelo kapa sekoahelo, e sebelisetsoang metsi a letsoai.
17.4.2.7 Viscometers: Motlakase, ho bala ka ho toba, ho latela ISO 10414-1
17.4.2.8 Li-timers: Tse peli, tsa mochini kapa tsa elektroniki, tse nepahetseng ka metsotso e 0.1 bakeng sa nako e lekantsoeng tekong ena.
17.4.2.9 Lisebelisoa tsa Filtration: Mocheso o tlase le mofuta oa khatello, ho latela lipehelo tsa Khaolo ea 7 ea
ISO 10414-1:2008.
17.4.2.10 Meqomo ea ho lekanya: Tse peli, tse nang le matla a 10 ml ± 0.1 ml le 500 ml ± 5 ml *
17.4.2.11 Sesebelisoa sa ho fepa ka polymer (mofuta oa Fann kapa mofuta oa OFI).
17.4.3 Mokhoa oa Teko - Tahlehelo ea Mokelikeli oa PAC-LV
17.4.3.1 Eketsa 42 g ± 0.01 g ea letsoai la leoatle ho 11 ± 2 ml ea metsi a senyehileng.
17.4.3.2 Ka 358 g ea tharollo ea letsoai la leoatle, eketsa 35.0 g ± 0.01 g ea potassium chloride (KCl).
17.4.3.3 Ka mor'a ho hlohlelletsa metsotso e 3 ± 0.1 min, eketsa 1.0 g ± 0.01 g ea sodium bicarbonate.
17.4.3.4 Ka mor'a ho sisinyeha bakeng sa 3 min± 0.1 min, eketsa 28.0 g± 0.01 g standard API ho hlahloba
17.4.3.5 Ka mor'a ho hlohlelletsa 5 min± 0.1 min, tlosa senoelo se tsosang ho tloha moferefere 'me u se phunye leboteng ka scraper.
Litekanyetso tsohle tsa API li hlahloba mobu.Mebu eohle ea tlhahlobo e tloaelehileng ea API e khomaretsoeng ho scraper e ne e kopantsoe le ho emisoa.
17.4.3.6 Khutlisa senoelo se tsosang ho moferefere 'me u tsoele pele ho susumetsa metsotso e 5 ± 0.1 min.
17.4.3.7 Boima ba 2.0 g±0.01 g PAC-L.
17.4.3.8 Butle-butle ha u ntse u hlohlelletsa sehlaseli, eketsa PAC-LV ka tekanyo e lekanang.
Nako ea ho eketsa e lokela ho nka metsotsoana e ka bang 60.PAC-LV e lokela ho kenyelletsoa ho vortex ka senoelo sa ho kopanya
le ho qoba shaft e sisinyehang ho fokotsa lerōle.Ho molemo ho sebelisa sesebelisoa sa phepelo ea polymer ho 17.4.2.11.
17.4.3.9 Ka mor'a ho sisinya metsotso e 5 ± 0.1 min, tlosa kopi e ts'oarellang ho tswa ho moferefere 'me u sebelise spatula ho hlakola tsohle.
PAC-L e khomaretse lebota la senoelo.Li-PAC-LV tsohle tse khomaretsoeng ho scraper li ne li tsoakane le ho emisoa.
17.4.3.10 Khutlisetsa nkho ka har'a sekontiri 'me u tsoele pele ho sisinya.Haeba ho hlokahala, ka mor'a metsotso e 5 le metsotso e 10, tlosa moferefere
kopi ho tsoa ho sevuhla 'me u hlakole PAC-L eohle e khomaretsoeng leboteng la senoelo.Kakaretso ea nako e susumetsang ho tloha ho
qalo ea tlatsetso ea PAC-LV e lokela ho ba 20 min ± 1 min.
17.4.3.11 Ho 25 °C ± 1 °C (77 °F ± 2 °F),boloka ho fanyeha ka setshelo se koetsoeng kapa se koahetsoeng bakeng sa 16 h ± 0.5 h.
Rekota mocheso oa ho folisa le nako ea ho folisa.
17.4.3.12 Ka mor'a ho folisa, hlohlelletsa ho emisoa ka moferefere bakeng sa 5 min ± 0.1 min.
17.4.3.13 Tšela ho fanyeha PAC-LV ka har'a senoelo sa sefe.Pele o tšela ka ho emisoa,etsa bonnete ba horekaofeladikarolo
ea mohope oa sefa o omme mme reng ea tiiso ha ea holofala kapa ea aparoa.Mocheso oa ho emisoa o lokela ho ba
25°C±1°C (77°F±2).Ho isa ho 13 mm (0.5 in) ho tloha ka holim'a senoelo.Kopanya kopi ea sefe, kenya kopi ea sefe
motho ea ts'oereng, koala valve ea ho fokotsa khatello, 'me u behe setshelo tlas'a tube ea drain.
17.4.3.14 Beha timer ho metsotso e 7.5 'me e' ngoe e be metsotso e 30.Ka nako e le 'ngoe qala li-timers tse peli' me u fetole khatello ea senoelo ho
690 kPa ± 35 kPa (100 psi ± 5 psi).Khatello e lokela ho fanoa ka moea o hatelitsoeng, naetrojene kapa helium.
E lokela ho phethoa nakong ea metsotsoana e 15.
17.4.3.15 qalong Qetellong ea timer feela, tlosa setshelo 'me u tlose mokelikeli o mong le o mong o khomaretseng mokelikeli le
e lahle.Moqomo o omileng oa 10 ml o omisitsoeng o ile oa beoa ka tlas'a mokelikeli mme filtrate e bokelloa ho fihlela ea bobeli.
sebali se felile.Tlosa cylinder 'me u tlalehe molumo oa filtrate e bokelitsoeng.
17.4.4 Palo - Tahlehelo ea PAC-LV Palo ea V e sefiloeng e baloa ho latela equation (43) ho ml;
v-2xVe (43) moo: 1⁄2_ volume ea filtrate e bokelitsoeng pakeng tsa 7.5 min le 30 min.Yuniti ke ml.
17.5 Viscosity e hlakileng ea Litharollo
17.5.1 Mokhoa oa Teko - Viscosity e bonahalang ea Tharollo
17.5.1.1 Eketsa 42 g ± 0.01 g ea letsoai la leoatle ho 11 ± 2 ml ea metsi a senyehileng.
17.5.1.2 Ka 358 g ea tharollo ea letsoai la leoatle, eketsa 35.0 g ± 0.01 g ea potassium chloride (KCl).
17.5.1.3 Boima ba 5.0 g ± 0.01 g PAC-Lv.Butle-butle ha u ntse u hlohlelletsa moferefere, eketsa PAC-LV ka tekanyo e lekanang.
Nako ea ho eketsa e lokela ho nka metsotso e ka bang 1.PAC-LV e lokela ho kenyelletsoa ho vortex ka senoelo sa ho kopanya
le ho qoba shaft e sisinyehang ho fokotsa lerōle.
17.5.1.4 Ka mor'a ho sisinya metsotso e 5 ± 0.1 min, tlosa kopi e ts'oarellang ho tswa ho moferefere, hlakola PACw eohle e khomaretsoeng leboteng la senoelo.
ka spatula, 'me kopanya tsohle PAC-LV khomaretse spatula ho fanyeha.
17.5.1.5 Khutlisetsa nkho ho motsoako 'me u tsoele pele ho sisinya.Haeba ho hlokahala, tlosa senoelo sa stirrer ho tswa ho mixer ka mor'a moo
5 mets le 10 min, hlakola li-PAC-W tsohle tse khomaretsoeng leboteng la senoelo.Kakaretso ea nako e susumetsang ho tloha qalong ea tlatsetso ea
PAC-LV e lokela ho ba 20 min ± 1 min.
17.5.1.6 Ho 25 °C ± 1 °C (777 ± 27), emisa ho emisoa bakeng sa 16 h ± 0.5 h ka setshelo se koetsoeng kapa se koahetsoeng.
Rekota mocheso oa ho folisa le nako ea ho folisa ”
17.5.1.7 Hlohlelletsa ho emisoa ka moferefere bakeng sa 5 min ± 0.1 min.
17.7.5.1.8 Tšela tharollo ka har'a kopi ea sampole e nang le viscometer ea ho bala ka ho toba" ho 25 °C ± 1 °C (77 Under
boemo ba ° F ± 2), ho emisoa ho ne ho baloa ho 600 r / min.
17.5.2 Palo - Viscosity e bonahalang ea tharollo
Bala viscosity e hlakileng ea tharollo ho latela foromo (44), ho mPas:
VA=R600/2 (44)
R600-viscometer ho bala ho 600 r / min.Ngola sephetho sa lipalo
Nako ea poso: Nov-12-2020