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Phenolic Resins ni hi fe fɛɛ: Polymers ni yɔɔ srɔtoi kɛha nitsumɔi ni nɔ kwɔ

Phenolic resins, ni anáa kɛjɛɔ phenol (C6H5OH) kɛ formaldehyde (HCHO) ni afee lɛ ŋmɔlɔŋmɔlɔ lɛ mli lɛ ji polymers ni haa hulu tsoɔ ni ehe gbɛi waa yɛ bɔ ni amɛnyɛɔ amɛshiɔ hulutsoo, amɛhewalɛ ni yɔɔ tsɔne mli, kɛ tsofai ni amɛkɛtsuɔ nii be kakadaŋŋ lɛ hewɔ. Ayɛ henɔi titrii enyɔ mli—novolac resins (ni yɔɔ linear, thermoplastic, ni biɔ nɔ ko ni haa mɔ he jɔɔ lɛ) kɛ resole resins (ni yɔɔ niji, ni haa mɔ he jɔɔ lɛ, ni haa mɔ he jɔɔ lɛ diɛŋtsɛ ehe)—amɛtsuɔ nii akɛ nibii ni he hiaa waa yɛ nitsumɔhei ni jeɔ shishi kɛjɛɔ tsɔnei kɛ kɔɔyɔŋ lɛlɛ mli nibii amli kɛyashiɔ tsɔnei kɛ tsumaa he nibii amli.

    Nitsumɔhei Wuji

    1. Nitsumɔi Titrii ni Akɛtsuɔ Nii yɛ Nitsumɔhei Afeemɔ Mli
    Akɛ Phenolic resins lɛ jara wa waa yɛ nyɛmɔ ni amɛyɔɔ ni amɛkɛfeɔ nibii ni wa, ni yɔɔ shiŋŋ yɛ dɔlɛ kɛ nɔnyɛɛ shishi lɛ hewɔ:
    Nibii ni akɛfee ekome kɛ Laminates:
    Aerospace: Akɛtsuɔ nii yɛ kɔɔyɔŋ lɛlɛ mli tsɔnei, tsɔne mli nibii, kɛ la ni tsiɔ la kɛjɛɔ mli lɛ mli yɛ amɛ lasu ni amɛjieɔ lɛ fioo kɛ la ni tsoɔ lɛ hewɔ (tamɔ, FAR 25.853 mlai ni akɛtsuɔ nii kɛhaa jarayeli kɔɔyɔŋ lɛlɛ).
    Ŋshɔ mli: Yɛ lɛlɛ shishi kɛ ŋshɔ hiɛ lɛlɛ mli lɛ, phenolic composites lɛ teɔ shi ewoɔ nu ni shwieɔ shi kɛ ŋmɔtɔ, ni etsuɔ ​​nii jogbaŋŋ fe blema fiberglass ni yɔɔ ŋmei nu mli lɛ.
    Foundry kɛ Mold Feemɔ:
    Akɛ Novolac ŋmeii, ni akɛ hexamethylenetetramine fataa he lɛ tsuɔ nii yɛ ŋã ni akɛwoɔ tsɔne mli tsɔne mli nibii amli (tamɔ, tsɔne mli tsɔne yitsei). Amɛ hulutsoo ni nɔ kwɔ lɛ haa hulutsoo ni fe 1,500°C lɛ feɔ ŋmɔtɔ pɛpɛɛpɛ.

    2. Elektrɔnik kɛ Elektrik Nitsumɔhei
    Kpokpaa nɔ woji ni akala (PCBs):
    Resole resins ji nɔ ni he hiaa waa kɛha epoxy-phenolic laminates ni yɔɔ PCBs mli lɛ, ni ehaa dielectric hewalɛ ni nɔ kwɔ kɛ ŋwɛi ŋtayaa kɛha nitsumɔi ni yaa hiɛ waa (tamɔ, 5G shɛɛ sane he nibii).
    Elektrik Insulashin:
    Nibii ni afee ni akɛfee phenolic (tamɔ, switchgear mli nibii, terminal blocks) haa arc shitee-kɛ-woo ni hi jogbaŋŋ kɛ thermal shifimɔ, ni ekɛ UL 94 V-0 la ni tsoɔ waa lɛ he mlai ni kɔɔ tsɔne ni akɛtswaa la lɛ he lɛ kpeɔ.

    3. Tsɔnei kɛ Gbɛfaa He Nitsumɔhe
    Nibii ni yɔɔ Hood lɛ shishi:
    Akɛ phenolic resins tsuɔ nii yɛ klatsi plɛtei, breki pads, kɛ transmishin fãi amli yɛ bɔ ni amɛteɔ shi amɛwoɔ dɔlɛ (ni shɛɔ 250°C) kɛ tsɔne mli haomɔ hewɔ. Akɛ nɔkwɛmɔ nɔ lɛ, yɛ Europa tsɔnei ahe nitsumɔhei lɛ, nibii ni akɛ phenolic fee lɛ haa tsɔnei ni tsuɔ nii jogbaŋŋ lɛ amli breki lɛ sɛɛ foɔ.
    Nibii ni akɛfee ekome ni tsiimɔ waaa:
    Akɛ glase loo carbon fiber woɔ mli hewalɛ, ni akɛ phenolic composites tsuɔ nii yɛ lɔle mli kɛ oketeke mli koni ekɛba tsɔne lɛ mli tsiimɔ shi yɛ be mli ni akwɛɔ tsɔne lɛ mli emuuyeli kɛ la he shweshweeshwefeemɔ nɔ (tamɔ, EN 45545-2 mlai ni akɛtsuɔ nii kɛha oketeke gbɛfaa lɛ).

    4. Tsumaa kɛ Tsumaa Nibii
    Nibii ni Akɛwoɔ La-Shãa:
    Akɛ Phenolic resins lɛ feɔ pɛntei ni mli tse ni mli lɛɛɔ ni efeɔ char layer ni buɔ mɔ he yɛ hulutsoo be ni mli wa mli, ni ehaa tsũi ni yɔɔ tsũi amli lɛ akumɔ sɛɛ tsɛɔ (tamɔ, jarayeli tsũi ni yɔɔ Asia lɛ).
    Insulashin Panel:
    Akɛ Phenolic foam, ni hulutsoo lɛ yaa hiɛ ni ji 0.02 W/m·K lɛ tsuɔ nii yɛ shĩai kɛ nitsumɔhei amli, ni ehaa la nyɛɔ etswaa la jogbaŋŋ kɛ akɛto polyurethane foam he.
    Nibii ni akɛkpɛtɛɔ nii ahe kɛ nibii ni akɛfiɔ he:
    Phenolic-based adhesives lɛ fiɔ tsei, dade, kɛ sũ mli nibii ni akɛtsuɔ nii yɛ tsumaa mli lɛ ahe (tamɔ, laminated beams ni yɔɔ modular tsũi amli lɛ), ni ehaa amɛhiɔ shi be kakadaŋŋ ni amɛnyɛŋ amɛshi ŋmɔtɔ.

    5. Nibii ni Akɛtsuɔ Nii kɛ Nibii Krɛdɛɛi ni Akɛtsuɔ Nii
    Kpataashi kɛ Hejuuhe Nibii:
    Phenolic resin ni afee lɛ feɔ okpɔlɔ nɔ nibii ni sɛɛ tsɛɔ, dɔlɛ nyɛɔ eshiɔ, sinki, kɛ faucet nibii. Amɛhiɛ ni bɛ ŋmeii lɛ teɔ shi ewoɔ muji kɛ tsofai, ni no haa amɛfeɔ nɔ ni hi jogbaŋŋ kɛha jarayeli ŋtayaai.
    Abrasive Nibii:
    Resole resins lɛ fiɔ ŋmeii ni shwieɔ shi (tamɔ, aluminum oxide, silicon carbide) yɛ ŋã woji amli, ŋtayaai ni akɛfoɔ nii, kɛ ŋtayaai ni akɛfoɔ nii lɛ amli, ni ehaa anyɛɔ atsuɔ nii jogbaŋŋ yɛ tsei ahe nitsumɔ kɛ dade feemɔ mli.

    Nibii pɔtɛɛ

    Nibii Gbɛi Propionik Asid
    Tsofa he gbɛjianɔtoo C3H6O2
    Molekular Muji 74.08 g/mɔl
    Bɔni oyɔɔ Nu ni mli tse ni bɛ su
    He ni Shãa -20.8°C
    He ni Shãa 141.1°C
    Dɛnsiti 0.993 g/sm3
    CAS NO 79-09-4
    HS Mlai 29155000
    EINECS NO 201-176-3
    Aplikashiŋ Akɛwoɔ plastic, tsofafeemɔ, niyenii, tsofai kɛ tsofai ni haa mɔ he jɔɔ lɛ amli

    Wolo ni Kwɛɔ Nɔ ni Hi jogbaŋŋ lɛ Nɔ

    Nibii Gbɛi Propionik Asid
    NOKO HE NYƆŊMƆ (%) KAA HE NYƆŊMƆ (%)
    Nibii ni yɔɔ mli, w/%≥ 99.5 99.9
    Tsiimɔ (20/20°C) 0.993-0.997 0.996
    He ni Shãa/°C 138.5-142.5 139.4-141.1
    Nɔ ni eshwɛ ni hoɔ kɛjɛɔ la mli,w/%≤ 0.01 0.006
    Nu,w/%≤ 0.15 0.02
    Aldehaid,w/%≤ ≤0.05 0.04
    oksideizashin ni yɔɔ mlɛo,w/%≤ ≤0.05 0.01
    Pb mg/kg≤ 2.0 ≤2.0
    Taakɛ mg/kg≤ 3.0 ≤3.0
    Naagbee Kɛ GB 1886.210-2016 mlai lɛ atsu nii

    Nɔ ni hi kɛ nɔyeli

    Nɔ ni afeɔ lɛ tsakemɔ:
    Abaanyɛ afee lɛ bɔ ni osumɔɔ kɛha nibii pɔtɛɛ komɛi:
    Dɔlɛ ni Nɔ Kwɔ: Glass tsakemɔ dɔlɛ (Tg) ni shɛɔ 300°C kɛha kɔɔyɔŋ lɛlɛ mli nitsumɔi.
    Lasu ni ajieɔ kɛjɛɔ mli ni baa shi: Atsake ŋwɛi gbɛfaa kɛ ŋshɔ hiɛ shihilɛi (tamɔ, IMO FTPC Fa 1 lɛ kpãa gbee).
    Mlai ahe mlai:
    Eshɛɔ UL, ASTM, kɛ ISO 9001:2015 shishitoo mlai lɛ ahe. Niyenii ni akɛkpeɔ (tamɔ, tsofa ni akɛwoɔ tsɔne mli) kɛ FDA 21 CFR 177.1020 kpãa gbee.
    Wajemɔ:
    Akɛ nibii ni jɛ wala mli ni ji phenol (tamɔ, cashew nut shell nu) tsuɔ nii yɛ gbɛjianɔtoi komɛi amli, ni ehaa hekɛnɔfɔɔ ni yɔɔ petrokemikal nɔ lɛ baa shi. Abaanyɛ atsake kɛtsɔ shãa kɛ hewalɛ ni anáa lɛ nɔ.

    Mɛni Hewɔ Wɔhalaa Wɔ Phenolic Resins lɛ?

    Kɛji akɛ la ni nyɛɔ etswaa lɛ he miihia bo kɛha kɔɔyɔŋ lɛlɛ, nibii ni haa tsɔnei tswaa nii jogbaŋŋ, loo nibii ni tsiɔ la naa kɛhaa tsumaa lɛ, wɔ phenolic resins lɛ haa anyɛɔ akɛ he fɔ̃ɔ nɔ ni nɔ bɛ. Kɛtsɔ jeŋ muu fɛɛ ŋaa gbɛ nɔ yelikɛbuamɔ kɛ nitsumɔhei ni yɔɔ North America, Europe, kɛ Asia lɛ anɔ lɛ, wɔkɛ tsabaai ni ato he gbɛjianɔ haa—kɛjɛ novolac/resole blends nɔ kɛyashi grades ni awo mli hewalɛ nɔ—koni wɔkɛ onibimɔ lɛ taomɔ nii pɔtɛɛ lɛ aba mli.

    Kɛ Premium Phenolic Resins afee wɔsɛɛ be he mfoniri—he ni dɔlɛ, tsofai, kɛ tsɔnei ni teɔ shi woɔ nibii lɛ tsɔɔ bɔ ni nibii tsuɔ nii amɛhaa lɛ mli ekoŋŋ.