He whakatakotoranga ātete mura tohutoro mō te SK Polyester ES500 (whakatauranga UL94 V0).
I. Huarahi Hoahoa Whakatakotoranga
- Hototahitanga o te Papatūānuku
- SK Polyester ES500: He polyester kirihou wera me te pāmahana tukatuka noa o te 220–260°C. Me tu te ātete mura ki tēnei awhe pāmahana.
- Ngā Whakaritenga Matua: Te taurite o te ātete mura (V0), ngā āhuatanga hangarau (te kaha o te kume/te pānga), me te rere o te tukatuka.
- Pūnaha Ārai Mura Tahi
- Konumohe Ārai Tino Pai (ATH): He ārai mura tuatahi, he whakamaroke werawera. Me taurite te kawenga i te ātete mura me ngā āhuatanga miihini.
- Konumohe Hipōhowhita: He kaiwhakapūmau i te hanga waro, ka mahi tahi me te ATH ki te waihanga i te pānga pūhākawa-konumohe, hei whakapai ake i te kounga o te waro.
- Konutea Pōrata: Whakarei ake i te waro, pehi i te paoa, ā, hanga ana i tētahi ārai matotoru me te ATH.
- MCA (Melamine Cyanurate): He ārai mura āhua-hau, ka waimeha te hāora, ā, ka ārai i te maturuturunga o te rewa.
II. Te Hanganga i Manakohia (Ōrau Taumaha)
| Wāhanga | Tauwehenga | Ngā Tuhipoka Tukatuka |
|---|---|---|
| SK Polyester ES500 | 45–50% | Kapia turanga; tīpakohia te taumata rere-teitei hei utu mō te matotoru o te whakakī. |
| ATH Tino Pai | 25–30% | I whakarerekētia te mata ki te kaihoko hononga silane (KH-550), D50 < 3 μm. |
| Konumohe Hypophosphite | 10–12% | Ātete ki te wera (>300°C), kua konatunatua ki te ATH, ā, ka tāpirihia i ngā wāhanga. |
| Konutea Pōrata | 6–8% | I tāpirihia ki te MCA hei karo i ngā kino hanganga kutikuti-teitei. |
| MCA | 4–5% | Te pāmahana tukatuka < 250°C, te horapa tere-iti. |
| Kaiwhakamarara | 2–3% | He matū whakamarara hototahi ki te polyester (hei tauira, BYK-161) + he matū whakaemi ware pi polyethylene. |
| Kaihoko Hononga (KH-550) | 1% | Ka rongoatia i mua ki te ATH me te konumohe hypophosphate; ka rumakina ki te etanoru, kātahi ka whakamaroke. |
| Kaihoko Ārai-Tārere | 0.5–1% | Paura moroiti PTFE hei pehi i te mura o te rewa. |
| Āwhina Tukatuka | 0.5% | Konutea stearate (whakahinuhinu me te ārai-piri). |
III. Ngā Mana Whakahaere Tukanga Matua
- Arotautanga Marara
- Maimoatanga i mua: Ruia te ATH me te hypophosphite konumohe ki roto i te otinga etanoru KH-550 1% mō ngā hāora e 2, kātahi ka whakamaroke ki te 80°C.
- Te Whakaranu Raupapa:
- Kapia turanga + kaiwhakamarara + kaihoko honohono → Ranunga tere-iti (500 rpm, 5 meneti).
- Tāpirihia te ATH/hypophosphate konumohe kua whakarerekētia → Kutikuti tere-rahi (2500 rpm, 20 meneti).
- Tāpirihia te konutea borate/MCA/PTFE → Whakaranu tere-iti (800 rpm, 10 meneti).
- Taputapu: Mīhini whakaputa tīwiri-rua (ngā rohe pāmahana: rohe whāngai 200°C, rohe rewa 230°C, mate 220°C).
- Whakahaere Pāmahana Tukatuka
- Me whakarite kia raro i te 250°C te pāmahana rewa hei ārai i te pirau o te MCA (ka pirau te MCA i te 250–300°C).
- Whakamataohia ngā pirepire ki te wai i muri i te whakaputanga hei ārai i te hekenga o ngā mea ārai mura.
IV. Tikanga Whakakotahi Ārai Mura
- ATH + Hypophosphate Konumohe
- Ka mimiti te ATH i te wera, ka tuku i te mamaoa wai, ka whakawaiwai i ngā hau mura.
- Ka whakahohehia e te hypophosphite konumohe te hanganga waro matotoru (AlPO₄), ka aukati i te whakawhiti wera.
- Konutea Pōrata + MCA
- Ka hangaia e te konutea borate he ārai karāhe i runga i ngā kapiti waro.
- Ka pakaru te MCA ka tuku i te NH₃, ka whakawaiwai i te hāora, ā, ka aukati i ngā tauhohenga rauropi kore utu.
- PTFE Ārai-maturuturu
- Ka hangaia e te paura moroiti PTFE he whatunga muka, ka whakaiti i te mōrearea o te mura rewa-maturuturu.
V. Te Whakatūnga Mahi me te Whakatau Rapanga
| Take Noa | Otinga |
|---|---|
| Te ātete mura i raro i te V0 (V1/V2) | Whakanuia te haupū konumohe ki te 12% + te MCA ki te 5%, tāpirihia rānei te 2% o te haupū whero kua whakakīia ki roto i te capsule (he mahi tahi me te haupū konumohe). |
| Ngā āhuatanga miihini kua whakaitihia | Whakaitihia te ATH ki te 25%, tāpirihia he 5% muka karāhe (whakapakari) he 3% rānei te POE kua tāpirihia ki te maleic anhydride (whakapakari). |
| Te rere o te tukatuka ngoikore | Whakanuia te matū whakamarara ki te 3%, tāpirihia rānei he 0.5% te ware pi polyethylene iti-MW (whakahinuhinu). |
| Te puāwaitanga o te mata | Whakapai ake i te horopeta o te kaihoko honohono, whakawhiti rānei ki te kaihoko honohono titanate (NDZ-201) kia pai ake ai te hononga ā-kanohi. |
VI. Ngā Inenga Whakamana
- Whakamātautau UL94 V0:
- Ngā tauira 1.6 mm me te 3.2 mm, ko te roanga tahunga katoa < 50 hēkona i muri i ngā tahunga e rua, kāore he turuturu o te mura.
- LOI: Whāinga ≥30% (tūturu ≥28%).
- Ngā Āhuatanga Ā-ringa:
- Kaha kume > 40 MPa, kaha pānga > 5 kJ/m² (paerewa ASTM).
- Te Pūmautanga Wera (TGA):
- Te toenga waro i te 800°C > 20%, te pāmahana pirau tuatahi > 300°C.
VII. Tauira Whakatakotoranga Tohutoro
| Wāhanga | Ihirangi (%) |
|---|---|
| SK Polyester ES500 | 48% |
| ATH Tino Pai (kua whakarerekētia) | 28% |
| Konumohe Hypophosphite | 11% |
| Konutea Pōrata | 7% |
| MCA | 4% |
| BYK-161 Kaiwhakamarara | 2.5% |
| Kaihoko Hononga KH-550 | 1% |
| Kaihoko Ārai-Tūturu PTFE | 0.8% |
| Konutea Stearate | 0.5% |
Mā tēnei whakatakotoranga me te hoahoa tukanga ka tutuki te ātete mura UL94 V0 mō te SK Polyester ES500, me te whakataurite i te āheinga tukatuka me ngā āhuatanga miihini. E taunakihia ana kia whakahaerehia ngā whakamātautau iti hei manatoko i te horapa i mua i te whakatikatika i ngā ōwehenga (hei tauira, te whakataurite i te konumohe hypophosphite me te MCA). Hei whakarei ake i te ātete mura, whakaarohia te tāpiri i te 2% boron nitride nanosheets (BNNS) hei whakakī rua-mahi mō te kawe wera/ātete mura.
More info., pls contact lucy@taifeng-fr.com
Te wā tuku: Hōngongoi-01-2025
