E aʻo i ka hoʻonui ʻana i ka lapalapa ahi o PA66 e ka phosphorus ʻulaʻula i uhi ʻia me nā resins like ʻole

Loaʻa i ka Nylon 66 nā waiwai mechanical maikaʻi, ke kūpaʻa a me ka pale ʻana i ka corrosion, a ua hoʻohana nui ʻia i nā ʻoihana kaʻa, uila a me ka uila. Eia naʻe, ʻo ka PA66 kahi mea hiki ke puhi ʻia, a e loaʻa ka droplet i ka wā e ʻā ana, kahi pilikia palekana nui. No laila, he mea koʻikoʻi ke aʻo ʻana i ka hoʻololi ʻana i ka lapalapa ahi o PA66. ʻO ka ʻōnaehana pale ahi o PA66 i hoʻohana ʻia e ka brominated flame retardants, akā ʻo ka brominated flame retardants ke kū nei i nā pilikia koʻikoʻi o ka mālama kaiapuni a me CTI.

I kēia manawa, hiki ke hoʻohana ʻia ka pale ahi phosphorus ʻulaʻula i nā mea pale ahi PA66 ma muli o kona kiʻekiʻe kiʻekiʻe o ka lapalapa ahi a me ka hana maikaʻi loa. Eia naʻe, ʻulaʻula phosphorus flame retardants i ke kiʻekiʻe wela, ea, kiʻekiʻe humidity a me ka alkaline kaiapuni, maʻalahi e komo i ka wai, ka hopena i ka acidification mea. Na ka phosphoric acid e ʻino i nā ʻāpana metala, e hopena i nā waiwai uila o ka huahana.

I mea e pale aku ai i ka acidification o ka red phosphorus reaction, e hoʻomaikaʻi i ke kūpaʻa o ka ʻulaʻula phosphorus, ʻo ke ala ʻoi aku ka maikaʻi o ka microcapsule i uhi ʻia i ka phosphorus ʻulaʻula, ʻo kēia ala ma o ka polymerization in-situ, i ka ʻulaʻula phosphorus pauka ʻili e hana i kahi mea polymer paʻa, i hiki ai iā ʻoe ke hoʻokaʻawale me ka phosphorus ʻulaʻula a me ka oxygen a me ka wai, a hoʻemi i ka acidification o ka phosphorus ʻulaʻula, hoʻonui i ka paʻa o ka hoʻohana ʻana i nā mea.

Eia nō naʻe, loaʻa nā hopena ʻokoʻa i nā resins uhi ʻokoʻa i ka nylon i hoʻoikaika ʻia i ka phosphorus flame retardant. I loko o kēia noiʻi ʻana, ua koho ʻia ʻelua mau mea pale ahi phosphorus ʻulaʻula i uhi ʻia me ka resin phenolic a me ka resin melamine no ke aʻo ʻana i nā hopena o kēia mau mea hoʻopaʻa ahi pale ʻokoʻa ʻelua i nā waiwai like ʻole o ka mea hoʻonui i ka PA66.

ʻO ka haku mele kumu o ka mea penei: melamine resin i uhi ʻia i ka ʻulaʻula phosphorus flame retardant master material (MC450), phenolic resin i uhi ʻia i ka ʻulaʻula phosphorus flame retardant master material (PF450): ʻulaʻula phosphorus maʻiʻo o 50%. ʻO ka hoʻokumu ʻana o ka nylon 66 i hoʻopaʻa ʻia i ka lapalapa ahi he 58% nylon 66, 12% mea hoʻopaʻa ahi retardant master, 30% aniani fiber.

Ua hoʻonui ʻia ka pepa formula PA66 me ka pale ahi phosphorus ʻulaʻula

Ma hope o ka hui ʻana a me ka hoʻololi ʻana, ua hoʻomākaukau ʻia ka PA66/GF30 composite i uhi ʻia me ka ʻulaʻula phosphorus flame retardant, a ua ana ʻia nā waiwai pili e like me kēia.

1. Hoʻopaneʻe ahi, wela uea wela a me ka creepage hoailona kuhikuhi

Hiki ke ʻike ʻia ʻo PA66-1# a me PA66-2# hiki ke hōʻea i ka pae wela ahi o 1.6mm V-0, a ʻaʻole kulu nā mea i ka wā o ka puhi ʻana. ʻO nā ʻano ʻelua o ka ʻulaʻula phosphorus flame retardant i hoʻonui ʻia i ka PA66 he hopena maikaʻi loa. Hiki i ka glow-wire flammability index (GWFI) o PA66-1 # a me PA66-2 # ke hiki i 960 ℃, a hiki i ka GWIT ke hiki i 775 ℃. Hiki i ka hana ho'āʻo ʻana o ka hoʻāʻo ʻana o ka phosphorus ʻulaʻula ʻulaʻula ʻelua i kahi pae maikaʻi loa.

Hiki ke ʻike ʻia ʻoi aku ka kiʻekiʻe o ka PA66-1 ma mua o ka CTI o # PA66-2 #, a ʻo ka CTI o nā mea ʻelua phosphorous coated flame retardant PA66 ma luna o 450V, hiki ke hoʻokō i nā koi noi o ka hapa nui o nā ʻoihana.

2. Waiwai mīkini

ʻO nā waiwai mīkini nā waiwai kumu nui o ka nylon i hoʻopaʻa ʻia i ka lapalapa ahi no kāna noi.

Hiki ke ʻike ʻia ʻoi aku ka kiʻekiʻe o ka ikaika tensile a me ka piʻi ʻana o PA66-1 #, ʻo ia ka 164 MPa a me 256 MPa pākahi, 5% a me 6% kiʻekiʻe ma mua o PA66-1 #. ʻOi aku ka nui o ka ikaika o ka hopena a me ka ikaika ʻole o PA66-1#, ʻo ia ka 10.5kJ/m2 a me 66.9 kJ/m2, 3% a me 21% kiʻekiʻe ma mua o ka PA66-1#. He kiʻekiʻe ke ʻano mechanical piha o nā mea ʻelua i uhi ʻia me ka phosphorus ʻulaʻula, hiki ke hoʻokō i nā koi hana o nā ʻano āpau.

3. ʻO ke ʻano a me ke ʻala

Hiki ke ʻike ʻia ma ke ʻano o ʻelua ʻano o ka injection molded samples i uhi ʻia me ka phosphorus ʻulaʻula i hoʻomaikaʻi ʻia e ka lapalapa ahi i hoʻonui ʻia i ka PA66 (PA66-1#) i hoʻomākaukau ʻia me ka melamine resin i uhi ʻia me ka phosphorus ʻulaʻula he ʻili maʻemaʻe, ʻulaʻula a ʻaʻohe fiber lana ma ka ʻilikai. ʻAʻole kūlike ka waihoʻoluʻu o ka lapalapa ahi i hoʻoikaika ʻia i ka PA66(PA66-2#) i hoʻomākaukau ʻia e ka resin phenolic i uhi ʻia me ka phosphorus ʻulaʻula a ʻoi aku ka nui o nā fiber lana. ʻO ka mea nui kēia ma muli o ka melamine resin ponoʻī he pauka maikaʻi loa a maʻalahi hoʻi, e like me ka papa uhi i hoʻokomo ʻia, e pāʻani i kahi lubrication i loko o ka ʻōnaehana waiwai holoʻokoʻa, no laila ua maʻalahi ka hiʻohiʻona o ke ʻano, ʻaʻohe fiber e lana ana.

ʻElua ʻano o nā ʻāpana PA66 i hoʻopaʻa ʻia i ka phosphorus ulaula i hoʻonui ʻia i ka 80 ℃ no 2 mau hola, a ua hoʻāʻo ʻia ko lākou nui ʻala. Pa66-1 # mea he pilau maopopo a he pilau ikaika. He ʻala liʻiliʻi ko Pa66-2 # a ʻaʻohe ʻala ʻala ʻikea. ʻO ka mea nui kēia ma muli o ka polymerization coating in situ, ʻaʻole maʻalahi ka hoʻomaʻemaʻe ʻana o ka resin i uhi ʻia i ka amine, a he nui ka ʻala o ka mea amine.

4. Ka hoʻoheheʻe wai

No ka PA66 i loko o nā pūʻulu amine a me carbonyl, ua maʻalahi ka hana ʻana i nā paʻa hydrogen me nā molekole wai, no laila e maʻalahi ke komo i ka wai ke hoʻohana ʻia, ka hopena i ka hopena plasticizing, ka hopena o ka hoʻonui ʻana i ka nui o ka waiwai, ka emi ʻana o ka rigidity, a me ka ʻike ʻia e kolo ma lalo o ka hana a kaumaha.

Ua aʻo ʻia ka mana o ka phosphorus ʻulaʻula pale ahi i uhi ʻia ma ka hoʻoheheʻe ʻana o ka wai ma o ka hoʻāʻo ʻana i ka wai o ka mea. Hiki ke ʻike ʻia ka piʻi ʻana o ka wai o nā mea ʻelua me ka piʻi ʻana o ka manawa. ʻO ka hoʻokomo wai mua ʻana o PA66-1# a me PA62-2 # ua like ia, akā me ka hoʻonui ʻana i ka manawa hoʻoheheʻe wai, ʻokoʻa ka wai o nā mea like ʻole. I waena o lākou, ʻo ka phenolic resin i uhi ʻia i ka ʻulaʻula phosphorus flame retardant nylon (PA66-2#) he haʻahaʻa haʻahaʻa wai absorption rate o 5.8% ma hope o 90 mau lā, ʻoiai ka melamine resin i uhi ʻia i ka ʻulaʻula phosphorus flame retardant nylon (PA66-1#) he wai kiʻekiʻe iki. ka helu absorption o 6.4% ma hope o 90 mau lā. ʻO ka mea nui kēia no ka haʻahaʻa haʻahaʻa o ka phenolic resin ponoʻī i ka wai absorption rate, a ʻo ka melamine resin ka mea ikaika loa i ka absorption wai, ʻilihune ke kūpaʻa hydrolysis.

5. Ke kū'ē i ka corrosion i ka metala

Mai nā laʻana hakahaka a me nā mea ʻē aʻe i uhi ʻia i ka phosphorus flame retardant i hoʻoikaika ʻia i ka nail metala ma ke kiʻi e ʻike, ʻaʻole e hui pū, ʻoi aku ka liʻiliʻi o ka laʻana o ka ʻili metala i hoʻololi ʻia. hōʻailona, ​​PA66-1 # o ka ʻinoʻino metala ua ʻoi aku ka maikaʻi, ʻoi aku ka maikaʻi o ka ʻili o ka metala, ʻoi aku ka maikaʻi o kekahi mau ʻāpana, ʻo ka ʻino metala o PA66-2 # ka mea koʻikoʻi loa, a ʻo ka ʻili o ka pepa metala ua pau loa. , oiai ka ili o ka pepa keleawe i ka ino a me ke kala ole. Hōʻike kēia i ka ʻino o ka melamine resin i uhi ʻia i ka ʻulaʻula phosphorous flame retardant nylon ma mua o ka phenolic resin i uhi ʻia ʻulaʻula phosphorous flame retardant nylon.

I ka hopena, ua hoʻomākaukau ʻia nā ʻano mea ʻelua o ka flame-retardant i hoʻonui ʻia i ka PA66 e ka uhi ʻana i ka phosphorus ʻulaʻula me ka melamine resin a me ka resin phenolic. Hiki i nā ʻano mea ʻelua o ka lapalapa ahi ke piʻi i ka 1.6mmV-0, hiki ke hele i 775 ℃ glow-wire ignition wela, a hiki i ka CTI ke piʻi ma mua o 450V.

Ua hoʻonui ʻia ka ikaika tensile a me ka ikaika flexural o PA66 e ka melamine coated red phosphorus, ʻoiai ʻoi aku ka maikaʻi o ka waiwai hopena o PA66 e ka phenolic coated red phosphorus. Eia kekahi, ʻoi aku ka liʻiliʻi o ka ʻala o ka resin phenolic i uhi ʻia me ka ʻulaʻula phosphorous flame retardant i hoʻonui ʻia i ka PA66 ma mua o ka mea i uhi ʻia me ka melamine, a ʻoi aku ka haʻahaʻa o ka wai absorption rate. ʻO ka melamine resin i uhi ʻia me ka ʻulaʻula phosphorous flame retardant e hoʻomaikaʻi i ke ʻano o PA66 me ka liʻiliʻi o ka corrosion i nā metala.

Nānā: E aʻo i nā waiwai pale ahi o PA66 i uhi ʻia me ka phosphorus ʻulaʻula, nā mea pūnaewele.