Mun na PTFE kasɛti bɛ se k’a nɔrɔli mara k’a sɔrɔ a ma dɛsɛ yɔrɔ minnu na funteni ka bon?

Jiangsu Aokai New Materials ye PTFE kasɛti min ka funteni ka bon, o bɛ baara kɛ ni silikɔni tansiyɔn nɔrɔlan ye, min bɛ se ka baara kɛ ka sabati 250°C la waati jan kɔnɔ. O kun jɔnjɔnw bɛ nin yɔrɔ saba ninnu na:

1. Cakɛda kunba bɛ kɛ ni Si–O jɛɲɔgɔnyaw ye minnu ka funteni tiɲɛni funteni ka bon

Silikɔni tansiyɔn-sɛgɛsɛgɛli nɛgɛma min bɛ PTFE funteni caman kasɛti kɔnɔ, o cakɛda belebele molekiyɔmu bɛ ni Si O Si O jɔcogo ye. Si–O jɛɲɔgɔnya ka jɛɲɔgɔnya fanga bɛ se 445 kJ/mol ma, o ka bon kosɛbɛ ka tɛmɛ C–C jɛɲɔgɔnya kan (348 kJ/mol ɲɔgɔn) walima C–H jɛɲɔgɔnya (413 kJ/mol ɲɔgɔn) polimɛri fɛnɲɛnamaw la minnu bɛ kɛ ɲɔgɔn fɛ i n’a fɔ akirilatiw ni lastikuw.

Ni funteni ka bon, C–C jɛɲɔgɔnyaw bɛ kari nɔgɔya la ani ka cakɛda tiɲɛni daminɛ, k’a sɔrɔ Si–O jɛɲɔgɔnyaw bɛ fanga caman de wajibiya walasa ka kari. O la, silikoni PSA ka cakɛda belebele molekiyɔmu bɛ to a cogo la 250°C la, ka a yɛrɛ tanga nɔrɔli bɔnɛ ma min bɛ sɔrɔ funteni-oksidan tiɲɛni fɛ.

2. Chemical Cross-Linking Network bɛ Softening ni Flow bali funteni caman na

Silikoni lastikuw min ma siri ɲɔgɔn na, o bɛ wuli ka kɛ ji ye min bɛ sɔgɔsɔgɔ ni funteni ka bon, wa a bɛ bɔnɛ a sirili fanga la pewu. Nka, silikɔni PSA min bɛ PTFE kasɛti funteniman na, o bɛ ɲɔgɔn cɛ ni perokisidi sɛgɛsɛgɛli ye walima ni farali ye min bɛ kɛ ni platini ye, ka cakɛda molekiyɔmu sinsinni siri ɲɔgɔn na ka kɛ rezo sabatilen ye min bɛ se ka kɛ yɔrɔ saba ye.

O ɲɔgɔndan in b’a to nɛgɛdaga bɛ se ka 250°C kɛcogo sabatilen mara k’a sɔrɔ a ma wuli walima ka woyo i n’a fɔ thermoplastique fɛnw. Hali ni modulu (modulus) dɔgɔyara dɔɔni, a bɛ to ka jɛɲɔgɔnya fanga bɛrɛ mara walasa ka se ka sɔgɔsɔgɔninjɛ kɛlɛ.

3. Glass jiginni funteni dɔgɔyalen (Tg ~ −120°C) .

Silikoni PSA min bɛ PTFE funteni caman kasɛti kɔnɔ, Tg ka dɔgɔn kosɛbɛ (−120°C ɲɔgɔn), o kɔrɔ ye ko a molekiyɔmu cakɛdaw bɛ to cogo la min bɛ se ka wuli kosɛbɛ funteni hakɛ caman na min bɛ daminɛ −70°C la ka se 300°C ma, sanni ka kɛ gilasi cogo la min karilen don.

O la, ni funteni ka bon, a nɔrɔlen tɛ gɛlɛya walasa a ka jigincogo tɛ ban, wa a tɛ nɔgɔya fo ka se a jibɔ kojugu ma. A bɛ modulu danmadɔ mara (modulus de storage G’ ≈ 104–106 Pa), o ye finɛtiri ɲuman ye degun-sɛgɛsɛgɛli nɔrɔli la.

Silikoni PSA yɛrɛ ka sanfɛla fanga ka dɔgɔ (22 mN/m ɲɔgɔn), o b’a to a bɛ se ka dugukolo sanfɛla fanga dɔgɔyalenw jigin ka ɲɛ i n’a fɔ PTFE ani silikoni lastikuw hali ni funteni ka bon — o bɛ debonding bali min bɛ sɔrɔ sanfɛla fanga bɛnbaliya fɛ.

Kunnafoni minnu bɛ sanfɛ, olu dira Jiangsu Aokai New Materials Technology Co., Ltd fɛ.

Ni aw b’a fɛ ka fɛn caman dɔn, ka baarakɛcogo ɲɛfɔ ani ka an ka fɛn dilannenw bɛɛ lajɛlen ɲɛnabɔcogo ɲɛnabɔ — i n’a fɔ PTFE fini min bɛ funteni caman bɔ, PTFE kasɛti min bɛ funteni caman bɔ, PTFE cɛsirilan min bɛ funteni caman bɔ, cɛsirilan min tɛ sɔgɔsɔgɔ lamini masinw kama, PTFE fini min bɛ kɛ fan kelen fɛ, fɛnɲɛnamafagalanw minnu bɛ se ka funteni caman kɛlɛ ani fini min bɛ funteni caman bɔ — aw bɛ se ka kuma an fɛ via:

·  Baarakɛyɔrɔ telefɔni nimɔrɔ:Mr. Guo 18944819998 Cɛ Liu 13705266308

Ka tugu baarakɛcogo hakilila la min ye baarakɛcogo ɲuman ni tilennenya ye, an b’an yɛrɛ di ka fɛɛrɛw di aw ma yɔrɔ kelen na ani baara min bɛ kɛ ni jateminɛ ye!