Hōʻuluʻulu manaʻo o ka PPO, PC a me ka PBT hana, nā ʻano hana a me nā noi maʻamau

PPO

Hana o PPO

ʻO ka polyphenylether ka poly2, 6-dimethyl-1, 4-phenylether, ʻike ʻia hoʻi he polyphenyloxy, Polyphenyleneoxiole (PPO), hoʻololi ʻia ka polyphenylether e ka polystyrene a i ʻole nā ​​polymers ʻē aʻe (MPPO).

ʻO ka PPO kahi ʻano ʻenekinia plastik me ka hana piha piha, ʻoi aku ka paʻakikī ma mua o PA, POM, PC, ikaika mechanical kiʻekiʻe, rigidity maikaʻi, kūpaʻa wela maikaʻi (thermal deformation wela o 126 ℃), kiʻekiʻe dimensional stability (shrinkage rate o 0.6%) , haʻahaʻa wai absorption rate (emi ma lalo o 0.1%). ʻO ka hemahema, ʻaʻole paʻa ka UV, kiʻekiʻe ke kumukūʻai a liʻiliʻi ka nui. ʻAʻole ʻawaʻawa ʻo PPO, ʻikea, liʻiliʻi liʻiliʻi, me ka ikaika mechanical maikaʻi loa, ke kūpaʻa hoʻomaha hoʻomaha, ke kūpaʻa ʻana, ke kūpaʻa wela, ka pale wai, ke kū ʻana o ka mahu wai.

I loko o kahi ākea o ka mahana, ka hoʻololi pinepine ʻana o ka hana uila maikaʻi, ʻaʻohe hydrolysis, ka liʻiliʻi o ka shrinkage rate liʻiliʻi, flammable me ka flameout ponoʻī, kūʻē i ka waika inorganic, alkali, ke kūpaʻa hydrocarbon aromatic, halogenated hydrocarbon, aila a me nā hana maikaʻi ʻole, ʻO ka pehu maʻalahi a i ʻole ke koʻikoʻi koʻikoʻi, ʻo ka drawback nui ʻo ka hoʻoheheʻe ʻana i ka wai, ka hana ʻana a me ka hana ʻana i nā pilikia, ʻo ka hapa nui o ka noi kūpono no MPPO (PPO hui a i ʻole alloy).

Kaʻina hana o PPO

Loaʻa i ka PPO ka viscosity hoʻoheheʻe kiʻekiʻe, ka wai liʻiliʻi a me nā kūlana hana kiʻekiʻe. Ma mua o ka hana ʻana, pono e hoʻomaloʻo no 1-2 mau hola i ka mahana o 100-120 ℃, ʻo ka hoʻokumu ʻana i ka mahana he 270-320 ℃, kūpono ka mālama ʻana i ka mahana ma 75-95 ℃, a me ka hana ʻana ma lalo o ke kūlana "kiʻekiʻe. ka mahana, ke kaomi kiʻekiʻe a me ka wikiwiki kiʻekiʻe". Ma ke kaʻina hana o kēia pia plastik, maʻalahi ka hana ʻana o ka jet flow pattern (snake pattern) i mua o ka nozzle, a ʻoi aku ka maikaʻi o ke kahawai kahe nozzle.

ʻO ka mānoanoa liʻiliʻi mai ka 0.060 a 0.125 iniha no nā ʻāpana i hoʻoheheʻe ʻia a me 0.125 a 0.250 mau ʻīniha no nā ʻāpana hoʻoheheʻe. ʻO ka lapalapa ahi mai UL94 HB a VO.

Laulā noi maʻamau

Hoʻohana nui ʻia ʻo PPO a me MPPO i nā lako uila, nā kaʻa, nā lako hale, nā lako keʻena a me nā mīkini ʻenehana, a me nā mea ʻē aʻe, me ka hoʻohana ʻana i ka wela MPPO, ka hopena hopena, dimensional stability, abrasion resistance, flaking resistance;

PC

Hana o PC

ʻO ka PC kahi ʻano ʻano ʻano ʻole, ʻala ʻole, ʻona ʻole, ʻaʻaʻa loa a i ʻole nā ​​​​mea ʻenekini thermoplastic ʻenekini melemele maikaʻi loa, me nā waiwai kino a me nā mīkini, ʻoi aku ka maikaʻi o ka hopena hopena, ka ikaika tensile kiʻekiʻe, ka ikaika kulou, ka ikaika hoʻoemi; ʻO ka paʻakikī maikaʻi, ka wela maikaʻi a me ka pale ʻana i ka wā, ka waihoʻoluʻu maʻalahi, ka haʻahaʻa haʻahaʻa o ka wai.

ʻO ka mahana deformation wela o PC he 135-143 ℃, liʻiliʻi ka kolo a paʻa ka nui. Loaʻa iā ia ka wela maikaʻi a me ka haʻahaʻa haʻahaʻa haʻahaʻa, kūpaʻa mechanical waiwai, dimensional stability, uila waiwai a me ka lapalapa ahi ma kahi ākea ākea. Hiki ke hoʻohana no ka manawa lōʻihi ma -60 ~ 120 ℃.

Paʻa i ka mālamalama, akā ʻaʻole kū i ke kukui UV, kū maikaʻi i ka wā; ʻO ka pale ʻana i ka aila, ka pale ʻana i ka waika, ke kūpaʻa alkali, ka waikawa oxidation a me ka amine, ketone, hiki ke hoʻoheheʻe ʻia i loko o nā hydrocarbons chlorinated a me nā mea hoʻoheheʻe aromatic, ke kāohi nei i nā ʻano bacterial, nā hiʻohiʻona o ka lapalapa ahi a me ka hoʻohaumia ʻana, ka lōʻihi o ka wai e maʻalahi i ka hydrolysis a me ka haki ʻana, ʻo ka hemahema. ma muli o ka maikaʻi ʻole o ka luhi, maʻalahi ka hana ʻana i ke koʻikoʻi, ka pale ʻana i ka solvent, ka maikaʻi ʻole o ka wai, ke kūpaʻa ʻino. ʻO ka hoʻoheheʻe ʻana o ka PC, extrusion, ka hoʻoheheʻe ʻana, ka hoʻoheheʻe ʻana, ka paʻi ʻana, ka hoʻopaʻa ʻana, ka uhi ʻana a me ka mīkini, ʻo ke ʻano hana koʻikoʻi koʻikoʻi ka hoʻoheheʻe ʻana.

Kaʻina hana o PC

ʻOi aku ka maʻalahi o ka mea PC i ka mahana, kona hoʻoheheʻe ʻana i ka viscosity me ka piʻi ʻana o ka mahana a hoʻemi nui ʻia, kahe wikiwiki, ʻaʻole pili i ke kaomi, i mea e hoʻomaikaʻi ai i kona liquidity, e lawe i ke ʻano o ka wela. ʻO nā mea PC ma mua o ka hana ʻana a maloʻo loa (120 ℃, 3 ~ 4 mau hola), pono e hoʻomalu ʻia ka makū i loko o 0.02%, ʻo ka hana ʻana i ka wai i ka wela kiʻekiʻe e hana nā huahana i nā kala turbidious, kālā a me nā ʻūhū, PC ma ka lumi lumi he mana nui. e hoʻoikaika i ka deformation elastic kiʻekiʻe. ʻO ke koʻikoʻi hopena kiʻekiʻe, no laila hiki ke kaomi anu, ke kiʻi anu, ka ʻōwili anu a me nā kaʻina hana anu. Pono e hoʻoheheʻe ʻia nā mea PC ma lalo o nā kūlana o ke kiʻekiʻe o ka mea wela, ka wela kiʻekiʻe a me ke kaomi kiʻekiʻe a me ka wikiwiki haʻahaʻa. No ka sprue liʻiliʻi, pono e hoʻohana ʻia ke kīkī haʻahaʻa. No nā ʻano sprue ʻē aʻe, pono e hoʻohana ʻia ke kiʻekiʻe kiʻekiʻe.

ʻOi aku ka maikaʻi o ka mālama ʻana i ka mahana ma 80-110 ℃, kūpono ka hoʻokumu ʻana i ka mahana ma 280-320 ℃.

Laulā noi maʻamau

ʻO nā wahi noi ʻekolu o PC he ʻoihana hui aniani, ʻoihana kaʻa a me nā mea uila, ʻoihana uila, ukali ʻia e nā ʻāpana mīkini ʻenehana, disc optical, lole kīwila, kamepiula a me nā lako keʻena ʻē aʻe, mālama olakino a me ke olakino, kiʻiʻoniʻoni, leʻaleʻa a me nā lako pale.

PBT

Hana o PBT

ʻO PBT kekahi o nā mea ʻenehana thermoplastic paʻakikī, he mea semi-crystalline, he paʻa kemika maikaʻi loa, ikaika mechanical, nā hiʻohiʻona insulation uila a me ka paʻa wela. He kūpaʻa maikaʻi kēia mau mea i ka laulā o nā kūlana kaiapuni, a nāwaliwali loa nā hiʻohiʻona o ka moisture absorption PBT.

ʻOi aku ka haʻahaʻa o ka helu heheʻe (225% ℃) a me ka mahana wela deformation ma mua o ka mea PET. ʻO ka mahana hoʻoluʻu Veka ma kahi o 170 ℃. Aia ka mahana hoʻololi aniani ma waena o 22 ℃ a me 43 ℃.

Ma muli o ke kiʻekiʻe o ka crystallization rate o PBT, haʻahaʻa loa kona viscosity, a haʻahaʻa haʻahaʻa ka manawa pōʻai o nā ʻāpana plastic.

Kaʻina hana o PBT

Hoʻomaloʻo: Hiki ke hoʻomaloʻo kēia mea i nā wela kiʻekiʻe, no laila pono e hoʻomaloʻo ma mua o ka hana ʻana. ʻO ke kūlana maloʻo i ʻōlelo ʻia ma ka lewa he 120C, 6-8 hola, a i ʻole 150℃, 2-4 hola. Pono ka haʻahaʻa haʻahaʻa ma lalo o 0.03%. Inā hoʻohana ʻoe i kahi mea maloʻo hygroscopic, ʻo ke kūlana maloʻo i ʻōlelo ʻia he 150 ° C no 2.5 mau hola. ʻO ka mahana hana he 225 ~ 275 ℃, a ʻo ka mahana i manaʻo ʻia he 250 ℃. No ka mea i hoʻonui ʻole ʻia ka mahana o ka mold he 40 ~ 60 ℃.

Pono e hoʻolālā maikaʻi ʻia ka lua hoʻoluʻu o ka ʻōpala e hōʻemi i ka piko o nā ʻāpana plastik. Pono e nalo koke ka wela a me ke kaulike. Manaʻo ʻia ʻo 12mm ke anawaena o ka lua anuanu. He haʻahaʻa ke kaomi ʻana (a hiki i ka 1500bar kiʻekiʻe), a ʻo ka wikiwiki o ka injection e like me ka wikiwiki (no ka mea, paʻa koke ka PBT).

ʻO ka mea holo a me ka ʻīpuka: Paipai ʻia ke kukini pōʻai e hoʻonui i ka neʻe kaomi.

Laulā noi maʻamau

ʻO nā mea hana o ka hale (nā lau hoʻoponopono meaʻai, nā mea hoʻomaʻemaʻe hoʻomaʻemaʻe, nā pā uila, nā hale maloʻo lauoho, nā kīʻaha kope, a me nā mea'ē aʻe), nā mea uila (nā hoʻololi, nā hale uila, nā pahu fuse, nā kī keyboard computer, a me nā mea'ē aʻe), kaʻoihana kaʻa (radiator grates, nā panela kino, nā uhi huila, nā ʻāpana puka a me nā puka makani, etc.