Te Hanganga Ārai Mumura Kore-Halogen mō te Pūnaha Paninga TPU Mā te Whakamahi i te Whakarewa DMF

Te Hanganga Ārai Mumura Kore-Halogen mō te Pūnaha Paninga TPU Mā te Whakamahi i te Whakarewa DMF

Mō ngā pūnaha paninga TPU e whakamahi ana i te Dimethyl Formamide (DMF) hei whakarewa, me arotake pūnaha te whakamahinga o te konumohe hypophosphite (AHP) me te konutea borate (ZB) hei ārai mura. Kei raro nei he tātaritanga taipitopito me te mahere whakatinanatanga:

I. Tātari Whaihua o te Konumohe Hypophosphite (AHP)

1. Tikanga Ārai Mura me ngā Painga

• Tikanga:
• Ka pirau i ngā pāmahana tiketike hei whakaputa waikawa phosphoric me te metaphosphoric, ka whakatairanga i te hanganga waro i roto i te TPU (condensed-phase flame retardancy).
• Ka tukuna ngā rauropi PO· hei aukati i ngā tauhohenga mekameka mura (te ātete mura hau-āhua).
• Ngā Painga:
• Kore-halogen, iti te paowa, iti te paitini, e tutuki ana i ngā whakaritenga RoHS/REACH.
• He pai te pumau o te pāmahana (te pāmahana pirau ≈300°C), he pai mō ngā tukanga whakamaroke TPU (te tikanga <150°C).

2. Ngā Wero me ngā Otinga mō te Taupānga

3. Te Hanga me te Tukanga i Manakohia

• Tauira Whakatakotoranga:
• Turanga TPU/DMF: 100 haora
• AHP whakarerekē-mata: 20 phr
• Konutea borate (ZB): 5 phr (pūtahitanga pehi paowa)
• Kaiwhakamarara (BYK-110): 1.5 phr
• Ngā Kaupapa Matua o te Tukanga:
• Whakaranua te AHP ki te kaiwhakaranu me te DMF wāhanga i raro i te kutikuti teitei (≥3000 rpm, 30 meneti), kātahi ka whakaranua ki te paru TPU.
• Te whakamaroke i muri i te paninga: 120-150°C, whakaroahia te wā mā te 10% kia tino mimiti te DMF.

II. Tātaritanga Whaihua o te Konutea Pōrata (ZB)

1. Tikanga Ārai Mura me ngā Painga

• Tikanga:
• Ka hanga he paparanga karāhe B₂O₃ i ngā pāmahana tiketike, ka aukati i te hāora me te wera (te ātete mura ā-wāhanga-whakamātao).
• Ka tukuna te wai here (~13%), ka whakawaiwai i ngā hau mura, ā, ka whakamatao i te pūnaha.
• Ngā Painga:
• He pānga kaha ki te mahi tahi me te AHP, te konumohe trihydroxide rānei (ATH).
• He tino pai te pehi paowa, he mea tino pai mō ngā mahi paowa iti.

2. Ngā Wero me ngā Otinga mō te Taupānga

3. Te Hanga me te Tukanga i Manakohia

• Tauira Whakatakotoranga:
• Turanga TPU/DMF: 100 haora
• ZB rahi-nano: 8 phr
• AHP: 15 phr
• He kaihoko maku (Tego 750W): 1 phr
• Ngā Kaupapa Matua o te Tukanga:
• Horahia te ZB ki roto i te DMF mā te mira pītiti (rahi matūriki ≤2μm) i mua i te whakaranu ki te paru TPU.
• Whakaroahia te wā whakamaroke (hei tauira, 30 meneti) kia kore ai e toe te makuku e pā kino ana ki te ātete mura.

III. Aromatawai Tahi o te Pūnaha AHP + ZB

1. Ngā Pānga Ārai Mumura Pūtahi

• Te Hononga Āhua-Hau me te Āhua-Whakapoto:
• Ka whakaratohia e te AHP te whākōkī hei whakangā, ko te ZB ia ka whakau i te paparanga ngā me te pehi i te kanapa i muri mai.
• LOI Whakakotahi: 28-30%, UL94 V-0 (1.6mm) ka taea te whakatutuki.
• Te Whakaiti Auahi:
• Ka whakaitihia e ZB te tukunga paowa mā te >50% (whakamātautau Cone Calorimeter).

2. Ngā Taunakitanga Taurite Mahi

• Te Utu mō ngā Āhuatanga Mīhini:
• Tāpirihia he 2-3% TPU plasticizer (hei tauira, polycaprolactone polyol) hei pupuri i te ngāwari (te roa >300%).
• Whakamahia ngā paura tino pai (AHP/ZB <2μm) hei whakaiti i te ngaronga o te kaha kume.
• Mana Pūmautanga Tukanga:
• Kia mau tonu te matotoru o te paru ki te 2000-4000 cP (Brookfield RV, porowhita 4, 20 rpm) kia ōrite te paninga.

IV. Te Whakataurite ki ngā Ārai Mura Wai-Hangai-Whakarewa

V. Ngā Hipanga Whakatinanatanga i Manakohia

1. Whakamātautau Tauine-Taiwhanga:

• Arotakehia te AHP/ZB takitahi, me te arotake tahi hoki (te kawenga rōnaki: 10%, 15%, 20%).
• Aromatawaihia te pumau o te mararatanga (kāore he oneone i muri i te 24 hāora), ngā panoni matotoru, me te ōritetanga o te paninga.

1. Whakamana Tauine-Pairata:

• Arotauhia ngā āhuatanga whakamaroke (te wā/te pāmahana) me te whakamātautau i te ātete mura (UL94, LOI) me ngā āhuatanga hangarau.
• Whakatauritea ngā utu: Mena ka whakaitihia ngā utu e AHP+ZB mā te >30% ki ngā FR wai, he whai hua ā-ōhanga.

1. Te Whakarite Whakanui-ā-Tauine:

• Te mahi tahi me ngā kaiwhakarato ki te whakawhanake i ngā puranga matua AHP/ZB kua tohatohahia i mua (e ahu mai ana i te DMF) hei whakahaere i te whakaputa māmā ake.

VI. Whakamutunga

Mā ngā tukanga marara whakahaeretia, ka taea e te AHP me te ZB te mahi hei ārai mura whai hua mō ngā paninga TPU/DMF, mena:

1. Te whakarerekētanga o te mata + te mararatanga kutikuti-teiteika whakamahia hei aukati i te kohikohinga o ngā matūriki.
2. AHP (tuatahi) + ZB (pūtahi)taurite ai te whai huatanga me te utu.
3. Mōte māramatanga/te ngāwari teiteingā whakaritenga, he pai tonu ngā FR wai hauota-pūkawa (hei tauira, Levagard 4090N).

Te Kamupene Ārai Mura Hou o Sichuan Taifeng (ISO me te REACH)

Email: lucy@taifeng-fr.com