Iodine tus nqi ntawm WCOME tau tshawb xyuas raws li ISO 3961-2009.
Acid tus nqi ntawm WCOME tau kuaj raws NF EN ISO 660-1999.
Kinematic viscosity raug kuaj pom tom qab ISO 6321-2002.
Qhov ceev ntawm lub pov tseg ua noj roj methyl ester tau tshawb xyuas raws li Suav tus qauv GB / T 5518-2008. Plaub qhov hloov pauv infrared spectrometry (FT-IR) tau sau cia ntawm Nicolet iS10 FT-IR (Nicolet Instrument Corporation, Tebchaws Asmeskas) plaub zaug hloov pauv infrared spectrophotometer.
Lub tsom teeb tau los ntawm ntau 4000 cm − 1 txog 500 cm − 1 ntawm kev daws teeb meem ntawm 4 cm − 1. Cov kab ntau hauv cov duab kos tau sau cia siv OMNIC software (Thermo Electron Corporation, Tebchaws USA). 1H Nuclear Magnetic Resonance (NMR) ntawm cov khoom lag luam nruab nrab thiab tus kheej-plasticization PVC tau ua rau ntawm AV-300 NMR spectrometer (Bruker Instrument Corporation, Lub Tebchaws Yelemees) ntawm kev ntsuas zaus ntawm 400 MHz.
Cov txheej txheem tau ua tiav siv CDCl3 yog cov kuab tshuaj thiab tetrametnylsilane (TMS) ua tus qauv sab hauv. NMR cov ntaub ntawv tau ua tiav siv MestReNova software (Santiago de Compostela, Spain).
Qhov nruab nrab hniav puas thiab qhov sib txawv ntawm cov zoo huv si PVC thiab tus kheej ntawm cov ntaub ntawv PVC cov khoom tau raug tshawb txog qhov kev ntsuas Gel Tso Cai Chromatography (GPC) ntsuas (Qhov Dej, Tebchaws Asmeskas) ntawm 30 ° C (tus nqi ntws: 1 mL / min, kem: sib xyaw PL gel 300 × 718 hli, 25 μm) siv HPLC-qib THF ua hnyav. Neat PVC thiab tus kheej-plasticization PVC tau coj mus rau hauv cov tshuaj THF nrog cov concentration ntawm 1-5 mg / mL.
Kev ntsuas sov thermvvimetric (TGA) cov kev sim tau coj los siv TG209F1 TGA thermal tsom ntsuas cov khoom siv (Netzsch Instrument Corporation, Lub Tebchaws Yelemees) hauv N2 huab cua (50 mL / min) ntawm qhov ntsuas kub ntawm 10 ° C / min. Cov ntaub ntawv tau sau thaum lub sijhawm kub qhov cub yog li ntawm 40 ° C mus txog 600 ° C.
Kev ntsuas ntsuas cov roj calorimeter sib txawv (DSC) ntsuas tau ua nyob hauv N2 huab cua siv NETZSCH DSC 200 PC ntsuas (Netzsch ntsuas Corporation, Lub teb chaws Yelemees).
Qhov ntsuas kub siab dhau dhau ntawm −40–120 ° C ntawm qhov cua sov 20 ° C / min. 5-10 mg zoo PVC thiab tus kheej-plasticization PVC tau hnyav thiab ntim hauv 40 uL txhuas crucible, thiab kuaj tam sim ntawd siv DSC ntsuas. Cov ntaub ntawv DSC tau sau los ntawm thawj phaum cua sov. Cov cuab yeej lub cev nrog rau cov khoom sib zog, tensile lub zog, thiab elongation thaum tawg tau tshawb xyuas raws li ISO 527-1-2012 ntawm 25 ° C los ntawm kev siv E43.104 Universal Testing Machine (MTS Instrument Corporation, Tuam Tshoj) ntawm tus nqi ntawm 20 hli / feeb. Txhua cov ntaub ntawv tau sau los siv tus nqi nruab nrab ntawm tsib cov ntawv sib tw. Cov kev ntsuam xyuas quab yuam tau ua tiav raws ASTM D5227. Neat PVC thiab tus kheej-plasticization PVC zaj duab xis tom qab kev hnyav tau muab tso rau hauv n-hexane ntawm 50 ° C rau 2 h. Cov yeeb yaj kiab PVC no tau ua kom qhuav thiab rov tsim dua tshiab. Kev rho tawm tau suav laij raws li Equatio n ( 1 ) ib nthib tus nqi nruab nrab ntawm tsib yam kev sim.
[Kev Ua Zauv Kev Ua Tsis Zoo] Degreeofmigration = [(W1 − W2) / W1)] × 100
W1 = pib qhov hnyav ntawm cov kev xeem zaj duab xis, thiab W2 = qhov nyhav kawg ntawm kev sim PVC zaj duab xis.
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