Nin fɛɛrɛ in bɛ jeli hakɛ suman. Ɲɛgɛnɛsiraw bɛ bɔ siɲɛ caman ni furaji ɲuman ye; mɔlikulu minnu ma ɲɔgɔn cɛ, olu bɛ wuli ka bɔ. Tolen jalen bɛ pese walasa ka fɛn minnu tɛ se ka wuli, olu girinya hakɛ jateminɛ, o bɛ makɔrɔ insoluble rezo jɔcogo hakɛ jira.
2. DSC ka fɛɛrɛ
O fɛɛrɛ in bɛ farikoloɲɛnajɛ funteni tolen suman. Furakɛbaliw ka funteni bɔli bɛɛ lajɛlen (ΔHtotal) ani sɛgɛsɛgɛli kɛlenw ka funteni bɔli tolen (ΔHresidual) bɛ suman. Kɛnɛya hakɛ : α=1−ΔHresidual/ΔHtotal A bɛ baarakɛjɛkulu tolenw ka walekɛminɛnw hakɛ jira.
3. FTIR spektroskopi fɛɛrɛ
O fɛɛrɛ in bɛ jogoɲumanya baarakɛjɛkuluw dunni kɔlɔsi. Ni jisigiyɔrɔw ye, Si-H (≈2160 cm−⊃1;) walima Si-Vi (≈1595 cm−⊃1;) yɔrɔ caman ɲɔgɔnna caman bɛ tugu ɲɔgɔn kɔ. Kɔnɔna sariyasun dɔ (misali la, Si-CH3 min bɛ ≈1260 cm−⊃1;) la, o bɛ ta walasa ka normalisation (normalisation) kɛ, ka ɲɛsin kemikɛli jɛɲɔgɔnya kɛrɛnkɛrɛnnenw jiginni hakɛ ma.
II. Tiɲɛni sangali ni filibaw
1. Solvent bɔli fɛɛrɛ
Cakɛda yɔrɔ minnu ma waleya, minnu sirilen bɛ farikolo-ɲɛnajɛ ni topidiya-kɔlɔsili fɛ, olu filila ka dɔn ko 'crosslinked structure', o bɛ na ni kemikɛli furakɛli hakɛ jateminɛni ye cogo labɛnnen na. O tɛmɛnen kɔ, sɛgɛsɛgɛli jaabiw bɛ nɔ bila wulicogo ɲuman na, mikrojɛli bɔnɛni ani baarakɛcogo jiginni, ni tiɲɛni ye ±2–5% dɔrɔn ye.
2. DSC ka fɛɛrɛ
A bɛ tiɲɛniba di kosɛbɛ fɛn caman tigɛli hakɛ dɔgɔman na ka taa cɛmancɛ la. Nka, ni kɛnɛyali hakɛ caman bɛ yen, baarakɛjɛkulu tolenw tɛ se ka wale kɛ ka dafa k’a sababu kɛ jɛnsɛnni dantigɛli ye, o bɛ na ni funteni bɔli sumanikɛlan dɔgɔyali ye ani kɛnɛya hakɛ jateminɛni kojugu. Misali wɛrɛw bɛ bɔ daminɛ sugandili la, kɛrɛfɛ-walew ani ΔHtotal latigɛli la. A segin-ka-bɔnye ka ɲi (<±2%).
3. FTIR Fɛɛrɛ
A bɛ kemikɛli jɛɲɔgɔnya jiginni kɔlɔsi k’a ɲɛsin a yɛrɛ ma ani a bɛ waso a ka bɛnkanba la ni kemikɛli caman tigɛli yɛrɛ ye. Misali kunbabaw bɛ bɔ peak overlap (misali la, jikuruw ka dankarili Si-H taamasiɲɛw kan). ATR cogoya bɛ sanfɛla laminiw dɔrɔn de kɔlɔsi; sɛgɛsɛgɛli kunnafoniw bɛna tiɲɛ ni furakɛli kelen-kelen bɛɛ tɛ kelen ye sanfɛla ni kɔnɔna cɛ. Sumani bɛ Lambert-Beer sariya labato, wa a bɛ tali kɛ sɛgɛsɛgɛli kɛlenw na minnu ma furakɛ. A bɛ tiɲɛniba jira min bɛ se ±1–3% ɲɔgɔn ma.
III. Tiɲɛni jatebɔ bɛɛjɛfanga
Ni an y’a jateminɛ ni kemikɛli jɛɲɔgɔnyaw jiginni hakɛ yɛrɛ ye , tiɲɛni sinsinni ye : FTIR fɛɛrɛ > DSC fɛɛrɛ (yɛrɛlabɔli hakɛ dɔgɔman na ka se cɛmancɛ ma) > Solvent Extraction Method
Solvent Extraction Method A ka dɔgɔn kosɛbɛ. Kɔrɔbɔli nafaw bɛ kɔrɔta ka da farikolo dɛmɛni kan, wa u bɛ jɛɲɔgɔnya jugu jira ni kemikɛli ɲɔgɔndan cogoya ye. O bɛɛ n’a ta, a nɔfɛkow bɛ surunya baarakɛcogo ɲuman na izini baarakɛcogo la.
DSC Fɛɛrɛ A bɛ se ka da a kan ani a bɛ tiɲɛ fɛn caman tigɛli hakɛ dɔgɔman na ka taa cɛmancɛ la. A bɛ se ka furakɛli hakɛ kalanni nkalonmaw lawuli maraw kɔnɔ minnu bɛ jɛnsɛnni kɔlɔsi, o la a man kan ka kɛ a yɛrɛma walasa ka furakɛli kɛcogo caman jateminɛ.
FTIR fɛɛrɛ Tiɲɛniba, min bɛ se ka kemikɛli caman tigɛli danfara ka ɲɛ, kɛrɛnkɛrɛnnenya la, a bɛnnen don danfara ma fɛn caman tigɛli hakɛ cɛmancɛ la ka taa sanfɛ.
IV. Ladilikanw minnu bɛ se ka baara kɛ ni u ye
Solvent Extraction Method A bɛnnen don jogoɲini ma walasa ka a dɔn joona ni jeli kɔnɔfɛnw bɛ baarakɛcogo wajibiyalenw dafa. A kalanniw man kan ka bɛn tigitigi ni kemikoro crosslink density ye.
DSC Fɛɛrɛ A bɛ tali kɛ farikoloɲɛnajɛ kinetiki ɲinini na ani taabolo kɔlɔsili la. Jateminɛ ka kan ka kɛ sumanikɛlan jiginni na fɛn caman tigɛli waatiw la. Jogindaw sɛgɛsɛgɛli ni FTIR fɛɛrɛ ye, o de ka ɲi.
FTIR fɛɛrɛ Jateminɛ fɛɛrɛ min ka fisa ni ɲinini ni yiriwali ye Jiangsu PTFE finiw dilannikɛlaw fɛ minnu funteni ka bon. A bɛ se ka sariyaw sigi senkan k’a ɲɛsin kemikɛli caman cili hakɛ ma formula dilanni ni taabolo ɲuman ɲɛnabɔli kama. Ni a farala DSC sɛgɛsɛgɛli kan, a bɛ kunnafoni dafalenw di furakɛli taabolo kan.
N’aw b’a fɛ ka fɛn caman dɔn fɛn ɲɛfɔlenw kan, baarakɛcogo misaliw ani furaw labɛncogo la minnu bɛ kɛ ka kɛɲɛ ni fɛnw ye minnu bɛ se ka kɛ fɛn bɛɛ ye i n’a fɔ PTFE finiw minnu bɛ funteni caman bɔ, PTFE kasɛtiw minnu bɛ nɔrɔ funteni caman na, PTFE cɛsirilanw minnu bɛ funteni caman bɔ, fɛnɲɛnamafagalanw cɛsirilanw, PTFE finiw minnu bɛ kɛ fan kelen fɛ, fɛnɲɛnamafagalanw minnu bɛ se ka funteni caman kɛlɛ ani minnu bɛ funteni caman kɛ fibre de verre fini minnu bɛ se ka kɛlɛ, aw bɛ se ka anw sɔrɔ nin fɛɛrɛw fɛ:
Ka tugu baarakɛcogo hakilila la min ɲɛsinnen bɛ baarakɛlaw ni danbe ma, an b’an yɛrɛ di ka fɛɛrɛw di aw ma yɔrɔ kelen na ani baara minnu bɛ kɛ ni hakili ye!
