ʻO ka Ammonium Polyphosphate Flame Retardant Mechanism a me ka pono

ʻO ka Ammonium Polyphosphate Flame Retardant Mechanism a me ka pōmaikaʻi

ʻO ka Ammonium polyphosphate (APP) ka pale ahi hiki ke hoʻokaʻawale ʻia i ʻekolu ʻano ma muli o kona degere o ka polymerization: haʻahaʻa, waena, a me ka polymerization kiʻekiʻe. ʻO ke kiʻekiʻe o ka polymerization degere, ʻoi aku ka haʻahaʻa o ka hoʻoheheʻe wai, a me ka hope. Ma ke ʻano, hiki ke hoʻokaʻawale ʻia i nā ʻano crystalline a me nā ʻano amorphous, me ka crystalline APP he paʻakai paʻakai paʻakai ʻole i ka wai. ʻO ke ʻano molekiko maʻamau o APP ʻo (NH₄)ₙ₊₂PₙO₃ₙ₊₁. Ke hele n mai ka 10 a hiki i ka 20, hiki ke hooheheeia i ka wai; ke oi ka n i ka 20, lilo ia i mea hiki ole ke hooheheeia. ʻAʻole ʻawaʻawa ʻo APP, ʻaʻala ʻole, ʻaʻohe corrosive, a hōʻike i ka hygroscopicity haʻahaʻa, ke kūpaʻa wela kiʻekiʻe, a me ka hana maikaʻi loa e like me ka halogen-free flame retardant.

ʻO ka mīkini pale ahi o ka APP:
Ke hoʻomehana ʻia, hoʻoheheʻe ʻia ka APP e hana i ka poly-/metaphosphoric acid, ka mea e hoʻoikaika ai i ka dehydration a me ka carbonization ma ka ʻili o nā mea kūlohelohe. Hoʻonui ia i ka hoʻomehana ʻana, e hana ana i kahi papa pale e hoʻokaʻawale i ka mea mai ka oxygen, a laila e loaʻa ai i ka lapalapa ahi. Hoʻohui hou, hoʻokuʻu ka hoʻoheheʻe wela o APP i nā kinoea hiki ʻole ke puhi ʻia e like me CO₂ a me NH₃, e hoʻoheheʻe i ka ʻike o ka oxygen i ka lewa, e ʻoki hou aku i ka hāʻawi ʻana i ka oxygen. ʻO kēia mau hiʻohiʻona ka hopena o ka hoʻokuʻu ʻana i ka uahi haʻahaʻa, ʻaʻohe hana kinoea ʻona, a me nā waiwai hoʻopau iā ia iho. ʻO ka mea nui, ʻaʻole pili kaiapuni wale nō ka nele o nā kinoea ʻona akā koʻikoʻi nō hoʻi no ka palekana o ke ola — hōʻike ʻia nā ʻikepili ma luna o 80% o nā mea make i nā hanana ahi nui i kumu ʻia e nā uahi ʻona mai ka puhi ʻana i nā plastic, nā mea uila, a me nā mea ʻē aʻe, ma mua o ke ahi ponoʻī.

Mea hana o APP Flame Retardant:
Hoʻohana ʻo Taifeng Flame Retardant i ka ʻenehana microencapsulation multi-layer kiʻekiʻe no ka hana ʻana i ka APP kiʻekiʻe-polymerization-degree me ka phosphorus kiʻekiʻe a me ka ʻike nitrogen. Hōʻike ka huahana i ke kūpaʻa wela maikaʻi loa, ka haʻahaʻa haʻahaʻa o ka wai, ka pH kokoke i ka neutral, a me ka maikaʻi o ka lapalapa ahi. He paʻa pauka keʻokeʻo, non-hygroscopic, non-flammable, a hōʻike i ke kaumaha molekala kiʻekiʻe (n> 1200), kūpaʻa, a me ka pale ʻana i ka wā. Hoʻohana nui ʻia ia i loko o nā pale ahi ahi, nā lole lole lole, a ma ke ʻano he mea koʻikoʻi i ka thermoplastics flame-retardant intumescent. Hoʻopili ʻia ka huahana encapsulated i ka mālama ʻana i ka ʻili no ka hoʻomaikaʻi ʻana i ka hoʻohālikelike ʻana, hoʻonui i ka pale ʻana i ka wai, ka pH alkaline, a me ka haʻahaʻa haʻahaʻa o ka wai.

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