17.2 Ƙididdigar Ƙirar Sitaci a cikin Polymers Mai Soluble Ruwa
17.2.1 Ka'ida
17.2.1.1 Manufar wannan gwajin shine don tantance kasancewar sitaci ko abubuwan sitaci a cikin polymers ɗin foda ko granular ruwa mai narkewa kamar PAC-LV
17.2.1.2.Gano maganin PAC-LV ta ƙara ma'adinai/iodide bayani*
Idan amylose ya kasance, an sanya shi cikin hadadden launi.
17.2.2 Reagents da kayan
a) Ruwan da aka ɗora ko narkar da shi
b) Maganin Nitrate, misali Merck 1.09.089.1000 (CAS No. 7553-56-2) 7) 0.05.
c) Potassium iodide 1 Merck 1.0504 3.0250 PA (CAS Lamba 7681-11-0)
d) Sodium hydroxide (NaOH) (CAS No. 1310-73-2): bayani mai narkewa, 0.1% -0.5%.
17.2.3 Na'ura
17.2.3.1 Stirrer 1ta Model 98 Multi-shaft Stirrers sanye take da 9B29X impeller ko makamancin ruwa tare da guda ɗaya.
sinusoidal waveform,ruwa diamita kusan.25 mm (lin, naushi fuska sama).
17.2.3.2 Kofin tashin hankali yana da kimanin girman 180 mm (7.1 in) zurfi, 97 mm (3-5/6 a) diamita na
babba baki,da 70 mm (2.75 in) diamita na ƙananan tushe (misali M110-D irin Hamilton Beachkofin motsawa
ko makamancin Abu).(Gilashin 600 ml kuma ana iya amfani dashi azaman madadin.)
17.2.3.3 Laboratory cokali.
17.2.3.4 Scraper.
17.2.3.5 Ma'auni: Daidaitawa shine 0.01 g.
17.2.3.6 Volumetric flasks 100ml
17.2.3.7 Pasteur pipettes ko dropper robobi.
17.2.3.8 Mai ƙidayar lokaci: Injini ko lantarki, daidaito 0.1 min.17.2.3.9 pH mita da pH lantarki:
Misali Thermo Russell nau'in KDCW1 19)
17.2.3.10 Polymeric ciyar na'urorin (misali Fann 10) ko 0Fl nau'in 11))
17.2.3.11 Gwajin bututu.
17.2.4 Tsari - Shiri Maganin Iodine/Potassium Iodide
17.2.4.1 Ƙara 10 μl ± 0.1 ml na 0.05 mol / l aidin bayani zuwa 100 ml ± 0.1 ml na flask volumetric.
17.2.4.2 Ƙara 0.60 g±..01 g Potassium iodide (KI), a hankali girgiza flask don narkar da shi.
17.2.4.3 Add deionized ruwa zuwa 100 ml mark da Mix sosai.Yi rikodin ranar shiri.
17.2.4.4 Ana adana maganin iodine/iodide da aka tsara a cikin rufaffiyar akwati kuma an adana shi a wuri mai duhu, sanyi da bushe.
Ranar karewar har zuwa wata uku ne kuma a jefar da shi a sake gyarawa.
17.2.5 Tsari - PAC-LV Shirye-shiryen Magani da Gano Sitaci
17.2.5.1 Shirya bayani mai ruwa 596 na PAC-LV da za a gwada.
Ƙara 380 g ± 0.1 g na ruwa mai narkewa a cikin kofin hadawa, ƙara 2 g ± 0.1 g na PAC-LV a daidaitaccen gudu
yayin da yake motsawa a kan stirrer.kuma lokacin ƙari ya kamata ya ci gaba don 60s zuwa 120 s.
Ya kamata a ƙara samfurin a cikin tashin hankali a cikin kofin hadawa, kuma ku guje wa shaft don rage ƙura.
Yana da kyau a yi amfani da na'urar cajin polymer a cikin 17.2.3.10.
17.2.5.2 Bayan motsawa na 5 min ± 0.1 min, cire kofin motsa jiki daga mai motsawa kuma a goge duk PAC-LVs da ke makale zuwa
bangon kofin tare da spatula.Dukkanin PAC-LVs da ke makale da abin gogewa an gauraye su cikin maganin.
17.2.5.3 Auna pH na maganin.Idan pH ya yi ƙasa da 10, ƙara bayani mai tsarma na NaOH dropwise.
Ƙara pH zuwa 10
17.2.5.4.Mayar da kofi mai motsawa zuwa mai motsawa kuma ci gaba da motsawa.Jimlar lokacin motsawa ya kamata ya zama 20 min ± 1 Min.
17.2.5.5 Sanya 2 ml na maganin samfurin a cikin bututun gwaji kuma ƙara dropwise 3 saukad da iodine/iodide bayani,
har zuwa 30 saukad da.
17.2.5.6 Shirya ƙwanƙwasa guda uku marasa ruwa tare da ruwa mai lalata.Ƙara digo 3, digo 9, digo 30 na maganin iodine/iodide zuwa
da bututu don kwatanta gwaje-gwaje.
17.2.5.7 Bayan ƙara 3 saukad da bayani kowane lokaci, a hankali girgiza bututu don kwatanta launi na samfurin bayani.
tare da gwajin komai.Ya kamata a yi kwatanta launuka da launin fari.
17.2.6 Ƙaddara - PAC-LV Gane Sitaci
17.2.6.1 Idan samfurin samfurin da za a gwada ya nuna launin rawaya iri ɗaya kamar gwajin mara kyau, samfurin ba ya
ya ƙunshi kowane nau'in sitaci ko sitaci.
17.2.6.2 Idan wani launi yana nan, ana nuna ƙarfi sosai cewa akwai sitaci ko sitaci wanda aka samu.
17.2.6.3 Idan launi ya bayyana ya ɓace da sauri, yana nuna kasancewar wakili mai ragewa, a cikin wannan yanayin.
ci gaba da ƙara dropwise iodine / iodide Magani, kwatanta launi tare da ɗayan gwaje-gwaje mara kyau, duba 17.2.61.
17.2.6.4 Idan an gano duk wani nau'in launi wanda ya bambanta da 17.2.6.1, ba lallai ba ne a ci gaba da gwajin na gaba
17.3 Danshi
17.3.1 Na'urar 17.3.1.1 Tanda: Mai sarrafawa a 105 ° C± 3 ° C (220± 5>.
17.3.1.2 Ma'auni: Daidaiton 0.01 g.
17.3.1.3 Haɓaka tasa: Ƙarfin 150 ml.
17.3.1.4 Scraper.
17.3.1.5 Mai katsewa: Ya ƙunshi desiccant (CAS Lamba 7778-18-9) desiccat, ko makamancinsa.
17.3.2 Tsarin Gwaji
17.3.2.1 Auna 10 g ± 0.1 g PAC-LV samfurin da za a auna A cikin evaporating tasa, rikodin samfurin taro m
17.3.2.2 Busa samfurin a cikin tanda don 4 h
17.3.2.3 Sanya samfurin a cikin na'urar bushewa zuwa zafin jiki.
bushe PAC-LV, rikodin bushe samfurin ingancin m2.
17.3.3 Lissafi
17.4 Rashin ruwa
17.4.1 Reagents da kayan
17.4.1.1 Gishiri na Teku: Kimanta ƙasa bisa ga ASTM D 1141-98 (2003) 12
17.4.1.2 API misali.
17.4.1.3 Potassium Chloride (CAS Lamba 7447-40-7)
17.4.1.4 Sodium Bicarbonate (CAS No. 144-55-8).
17.4.1.5 Deionized ko distilled ruwa.
17.4.2 Kayan aiki
17.4.2.1 Thermometer: Ma'aunin ma'auni shine 0 °C ~ 60 °C, daidaito shine 0.5 °C
(Yawan aunawa shine 32 °F ~ 140 °F, madaidaicin 1.0 °F)
17.4.2.2 Ma'auni: Daidaitawa shine 0.01g.
17.4.2.3 Stirrer: Idan Nau'in 9B Multi-shaft stirrer sanye take da 9B20x impeller,ya kamata a shigar da shafta
guda ɗayasine igiyar ruwa mai diamita na ruwa kusan 25 mm (1 in) tare da hatimin fuska sama.
17.4.2.4 Kofin tashin hankali yana da kimanin girman 180 mm (7.1 in) zurfi, 97 mm (3-5/6 a) diamita na
babban baki,da 70 mm (2.75 in) diamita na ƙananan tushe (misali M110-D irin Hamilton Beach stirring kofin).
17.4.2.5 scraper.
17.4.2.6 Kwantena: Gilashi ko filastik, tare da tashe ko murfi, ana amfani da shi don ruwan gishiri.
17.4.2.7 Viscometers: Electric, karanta kai tsaye, daidai da ISO 10414-1
17.4.2.8 Masu ƙidayar lokaci: Biyu, inji ko na lantarki, tare da madaidaicin 0.1 min don lokacin da aka auna a cikin wannan gwajin.
17.4.2.9 Na'urar tacewa: Ƙananan zafin jiki da nau'in matsa lamba, daidai da tanadi na Babi na 7 na
ISO 10414-1: 2008.
17.4.2.10 Auna Silinda: Biyu, tare da damar 10 ml ± 0.1 ml da 500 ml ± 5 ml *
17.4.2.11 Na'urar ciyar da polymer (nau'in Fann ko nau'in OFI).
17.4.3 Tsarin Gwaji - PAC-LV Rashin Ruwan Ruwa
17.4.3.1 Ƙara 42 g ± 0.01 g na gishirin teku zuwa 11 ± 2 ml na ruwa mai lalata.
17.4.3.2 A cikin 358 g na ruwan gishiri na teku, ƙara 35.0 g ± 0.01 g na potassium chloride (KCl).
17.4.3.3 Bayan motsawa don 3 min ± 0.1 min, ƙara 1.0 g ± 0.01 g na sodium bicarbonate.
17.4.3.4 Bayan motsawa don 3 min ± 0.1 min, ƙara 28.0 g ± 0.01 g API don kimantawa
17.4.3.5 Bayan yin motsawa don 5 min ± 0.1 min, cire ƙoƙon mai motsawa daga mai tayar da hankali kuma a goge shi zuwa bango tare da gogewa.
Duk ƙa'idodin API suna kimanta ƙasa.Duk ƙasƙan ƙimar ƙimar API ɗin da ke makale da abin gogewa an gauraye su cikin dakatarwar.
17.4.3.6 Koma kofin motsa jiki zuwa mai motsawa kuma ci gaba da motsawa don 5 min ± 0.1 min.
17.4.3.7 Nauyin 2.0 g± 0.01 g PAC-L.
17.4.3.8 Sannu a hankali yayin motsawa a kan mai motsawa, ƙara PAC-LV a daidai adadin.
Lokacin kari ya kamata ya wuce kusan daƙiƙa 60.Ya kamata a ƙara PAC-LV zuwa vortex a cikin kofin hadawa
kuma a guje wa shingen motsa jiki don rage ƙura.Zai fi kyau a yi amfani da na'urar ciyar da polymer a cikin 17.4.2.11.
17.4.3.9 Bayan motsawa na 5 min ± 0.1 min, cire kofin motsa jiki daga mai motsawa kuma yi amfani da spatula don goge duka.
PAC-L makale da bangon kofin.Duk PAC-LVs da ke makale da abin gogewa an gauraye su a cikin dakatarwar.
17.4.3.10 Koma kwalban zuwa mai motsawa kuma ci gaba da motsawa.Idan ya cancanta, bayan minti 5 da minti 10, cire motsin
kofin daga abin motsawa kuma goge duk PAC-L da ke makale a bangon kofin.Jimlar lokacin motsawa daga
farkon ƙari na PAC-LV yakamata ya zama 20 min ± 1 min.
17.4.3.11 A 25 °C ± 1 °C (77 °F ± 2 °F),kula da dakatarwa a cikin rufaffiyar ko kwandon rufi don 16 h ± 0.5 h.
Yi rikodin zafin jiki da lokacin warkewa.
17.4.3.12 Bayan warkewa, motsa dakatarwa a kan mai motsawa don 5 min ± 0.1 min.
17.4.3.13 Zuba dakatarwar PAC-LV a cikin kofin tacewa.Kafin zuba cikin dakatarwar,tabbatar da hakadukasassa
kofin tacewa ya bushe kuma zoben hatimin baya lalacewa ko sawa.Ya kamata zazzabi na dakatarwa ya kasance
25°C±1°C (77°F±2).Zuwa tsakanin 13 mm (0.5 in) daga saman kofin.Haɗa kofin tacewa, shigar da kofin tacewa
mariƙin, rufe bawul ɗin taimako na matsa lamba, kuma sanya akwati a ƙarƙashin bututun magudanar ruwa.
17.4.3.14 Saita lokaci zuwa 7.5 min da wani saiti zuwa 30 min.A lokaci guda fara masu ƙidayar lokaci biyu kuma daidaita matsa lamba zuwa
690 kPa ± 35 kPa (100 psi ± 5 psi).Ya kamata a ba da matsin lamba ta iska mai matsa lamba, nitrogen ko helium.
Ya kamata a kammala shi a cikin dakika 15.
17.4.3.15 da farko A ƙarshen lokacin kawai, cire akwati kuma cire duk wani ruwa da ke manne da magudanar ruwa
jefar da shi.An sanya busassun busassun 10 ml na Silinda a ƙarƙashin magudanar ruwa kuma an tattara tacewa har sai na biyu
lokacin aiki ya ƙare.Cire silinda kuma yi rikodin ƙarar tacewa da aka tattara.
17.4.4 Lissafi - Asarar PAC-LV Adadin da aka tace V ana ƙididdige shi bisa ga ƙididdiga (43) a cikin ml;
v-2xVe (43) inda: 1⁄2_ ƙarar tacewa da aka tattara tsakanin 7.5 min da 30 min.Naúrar shine ml.
17.5 Bayyanar Dangantakar Magani
17.5.1 Tsarin Gwaji - Bayyanar Dangantakar Magani
17.5.1.1 Ƙara 42 g ± 0.01 g na gishiri na teku zuwa 11 ± 2 ml na ruwa mai deionized.
17.5.1.2 A cikin 358 g na ruwan gishiri na teku, ƙara 35.0 g ± 0.01 g na potassium chloride (KCl).
17.5.1.3 Nauyin 5.0 g ± 0.01 g PAC-Lv.Sannu a hankali yayin motsawa akan abin motsawa, ƙara PAC-LV a daidai adadin.
Lokacin kari ya kamata ya wuce kusan minti 1.Ya kamata a ƙara PAC-LV zuwa vortex a cikin kofin hadawa
kuma a guje wa shingen motsa jiki don rage ƙura.
17.5.1.4 Bayan motsawa na 5 min ± 0.1 min, cire kofin motsa jiki daga mai motsawa, goge duk PACw da ke makale a bangon kofin.
tare da spatula, kuma haɗa duk PAC-LV da ke makale akan spatula zuwa dakatarwa.
17.5.1.5 Koma kwalban zuwa mahaɗin kuma ci gaba da motsawa.Idan ya cancanta, cire kofin stirrer daga mahaɗin bayan
Minti 5 da mintuna 10, goge duk PAC-Ws da ke makale a bangon kofin.Jimlar lokacin motsawa daga farkon ƙari na
PAC-LV yakamata ya zama 20 min ± 1 min.
17.5.1.6 A 25 ° C ± 1 ° C (777 ± 27), dakatar da dakatarwar don 16 h ± 0.5 h a cikin rufaffiyar ko murfi.
Yi rikodin zafin jiki da lokacin warkewa "
17.5.1.7 Sanya dakatarwa akan mai motsawa don 5 min ± 0.1 min.
17.7.5.1.8 Zuba maganin a cikin kofin samfurin sanye take da viscometer karanta kai tsaye" a 25 ° C ± 1 ° C (77 Karkashin
yanayin °F ± 2), an karanta dakatarwar a 600 r / min.
17.5.2 Lissafi - Bayyanar danko na maganin
Yi ƙididdige ɗanƙon da ke fitowa bisa ga dabara (44), a cikin mPas:
VA=R600/2 (44)
Karatun viscometer R600 a 600r / min.Yi rikodin sakamakon lissafin
Lokacin aikawa: Nov-12-2020