ʻO ka hoʻokumu ʻana no ka V-0 Flame-Retardant PVC Thermoplastic Plastics
No ka loaʻa ʻana o ka helu V-0 flame retardancy (e like me ka UL-94 maʻamau) i loko o ka PVC thermoplastic plastics, alumini hypophosphite a me boric acid ʻelua mau mea hoʻohana maʻamau. Pono e hoʻonui ʻia kā lākou pae hoʻohui e pili ana i ka hoʻonohonoho kikoʻī, nā kūlana hana, a me nā koi hana. Aia ma lalo kekahi mau manaʻo a me nā pae kuhikuhi:
1. Pākuʻi Papa o Aluminum Hypophosphite
ʻO ka alumini hypophosphite kahi mea hoʻopaʻa ahi e pili ana i ka phosphorus kūpono no nā mea PVC. Kāohi ia i ka puhi ʻana ma ka hana ʻana i kahi papa phosphate pale a me ka hoʻokuʻu ʻana i ke kinoea phosphoric acid.
- Paipai ʻia ka pae hoʻohui: 15–25 ph(nā ʻāpana o ka hapa haneli o ka resin)
- No ka PVC maʻamau, hoʻohui a puni20 phrʻO ka alumini hypophosphite e loaʻa pinepine i ka helu V-0 ahi.
- No ka hoʻopaneʻe ahi kiʻekiʻe, hiki ke hoʻonui ʻia ka dosage, akā pono e noʻonoʻo ʻia ka hopena i nā waiwai mechanical.
- Nā mea e mālama ai:
- Hiki i ka alumini hypophosphite ke hōʻemi i ka hana hana (e laʻa, ʻoi aku ka maikaʻi o ka kahe ʻana).
- Manaʻo ʻia e hui pū me nā mea pale ahi ʻē aʻe (e laʻa, boric acid, alumini hydroxide) no nā hopena synergistic.
2. Pākuʻi Pākuʻi o Boric Acid
ʻO ka waika Boric kahi mea pale ahi haʻahaʻa e hana nui ma o ka decomposition endothermic a me ka hoʻokumu ʻana i kahi papa pale e like me ke aniani.
- Paipai ʻia ka pae hoʻohui: 5–15 ph
- Hoʻohana mau ʻia ka waika Boric ma ke ʻano he pale ahi lua, a ʻo ka nui o ka nui e hoʻopilikia i nā waiwai mechanical a me ka hoʻoponopono ʻana.
- I ka PVC, hoʻohui a puni10 phrHiki i ka waika boric ke hui pū me ka alumini hypophosphite e hoʻomaikaʻi ai i ka retardancy ahi.
- Nā mea e mālama ai:
- He hygroscopic ka waika Boric, no laila, ʻo ka mālama ʻana a me ka mālama ʻana e pale i ka hoʻomoʻa ʻana o ka wai.
- Ua kaupalena ʻia kona hopena pale ahi ke hoʻohana wale ʻia; ua hui pū ʻia me nā mea pale ahi ʻē aʻe (e laʻa, alumini hypophosphite, alumini hydroxide).
3. Hoʻokumu Synergistic o Aluminum Hypophosphite a me Boric Acid
No ka loaʻa ʻana o ka helu V-0, hiki ke hoʻohui ʻia ka alumini hypophosphite a me ka waikawa boric no nā hopena synergistic. Aia ma lalo iho kahi palapala kuhikuhi:
- Aluminum hypophosphite: 15–20 ph
- ʻAka Boric: 5–10 ph
- Nā mea hoʻohui ʻē aʻe:
- Plasticizer (eg, DOP): E like me ka mea e pono ai (hoʻoponopono ʻia e pili ana i nā koi paʻakikī PVC)
- Mea hoʻokūpaʻa:2–5 phr(e laʻa, nā paʻakai kēpau, nā mea hoʻokūpaʻa calcium-zinc)
- Lubricant:0.5–1 ph(e laʻa, stearic acid)
Ka Laʻana Hana:
- PVC resin:100 ph
- Aluminum hypophosphite:18 phr
- Zinc borate:8 phr
- Mea hoʻopalekana (DOP):40 phr
- Mea hoʻokūpaʻa:3 phr
- Lubricant:0.8 ph
4. Ho'āʻo a me ka Optimization
Ma nā noi kūpono, ua ʻōlelo ʻia nā ʻanuʻu aʻe no ka hoʻāʻo ʻana a me ka optimization:
- ʻO ka hoʻolālā pailaka:E hoʻomākaukau i kahi hoʻokolohua liʻiliʻi e pili ana i nā pae kuhikuhi.
- Hōʻike UL-94:E hana i nā hoʻāʻo ʻana i ke ahi e loiloi i ka helu ʻana o ke ahi.
- Hoʻāʻo hana:E loiloi i nā waiwai mekini (e laʻa, ka ikaika tensile, ka ikaika hopena) a me ka hana ʻana i ka hana (e laʻa, kahe ʻana, paʻa wela).
- Hoʻonui:Hoʻoponopono i nā pae hoʻohui o ka alumini hypophosphite a me ka wai boric a i ʻole e hoʻokomo i nā mea pale ahi ʻē aʻe (e laʻa, alumini hydroxide, antimony trioxide) e hoʻomaikaʻi hou i ka hana.
5. Nā Manaʻo Nui
- Mahana hana:ʻO nā mahana decomposition o ka alumini hypophosphite a me ka wai boric he kiʻekiʻe; e hōʻoia ʻaʻole e ʻoi aku ka mahana o ka hoʻoponopono ʻana ma mua o kēia mau palena e pale i ka hōʻino.
- Hoʻopuehu:E hōʻoia i ka hoʻopuehu like ʻana o nā mea pale ahi i ka PVC e pale i nā pilikia kūloko kūloko.
- Ka hopena o ke kaiapuni:ʻO ka alumini hypophosphite a me ka boric acid he mau mea hoʻopaʻa ahi eco-friendly, akā pono e hōʻoia ʻia ka hoʻohālikelike ʻana me nā mea hoʻohui ʻē aʻe.
6. Ka hopena
No ka loaʻa ʻana o ka helu V-0 flame retardancy ma PVC thermoplastic plastics, ʻo nā pae hoʻohui i ʻōlelo ʻia15-25 phr no ka alumini hypophosphitea5-15 phr no ka waika boric. Hiki i ka hoʻohana synergistic o kēia mau mea pale ahi ke hoʻonui i ka hana. I ka hoʻomaʻamaʻa ʻana, pono ka loiloi e pili ana i nā hana kikoʻī a me nā koi o ka hana, a pono e hana ʻia ka hoʻāʻo UL-94 e hōʻoia i ka helu ʻana o ka lapalapa ahi.
More info. , pls contact lucy@taifeng-fr.com
Ka manawa hoʻouna: Jun-23-2025
