Ka Hana like a me ka hoʻohālikelike ma waena o PEI a me PEEK

ʻO Polyetherimide, i kapa ʻia ʻo PEI ma ka ʻōlelo Pelekania, Polyetherimide, me ka hiʻohiʻona amber, he ʻano amorphous thermoplastic kūikawā ʻenekinia plastic e hoʻolauna ana i ka paʻa ether maʻalahi (- Rmae Omi R -) i loko o nā molekole kaulahao lōʻihi polyimide.

ʻO ke ʻano o ka PEI

E like me ke ʻano o ka polyimide thermoplastic, hiki i ka PEI ke hoʻomaikaʻi nui i ka thermoplasticity maikaʻi ʻole a me ka hana paʻakikī o ka polyimide ma o ka hoʻokomo ʻana i ka paʻa ether (- Rmurmurr R -) i loko o ke kaulahao nui polymer aʻo ka mālama ʻana i ke ʻano apo o polyimide.

Nā hiʻohiʻona o ka PEI

Pono:

Ka ikaika tensile kiʻekiʻe, ma luna o 110MPa.

Ka ikaika kulou kiʻekiʻe, ma luna o 150MPa.

ʻOi aku ka nui o ka hiki ke halihali thermo-mechanical, ʻoi aku ka nui o ka mahana deformation wela ma mua o 200 ℃.

ʻO ke kūpaʻa kolo maikaʻi a me ke kūpaʻa luhi.

ʻOi aku ka maikaʻi o ke ahi a me ka uahi haʻahaʻa.

Maikaʻi dielectric a me ka insulation waiwai.

ʻOi aku ka maikaʻi o ka hoʻonui ʻana i ka wela.

ʻO ke kūpaʻa wela kiʻekiʻe, hiki ke hoʻohana ʻia ma 170 ℃ no ka manawa lōʻihi.

Hiki ke hele ma waena o nā microwave.

Nā hemahema:

Loaʻa i ka BPA (bisphenol A), ka mea e kaupalena i kona hoʻohana ʻana i nā huahana pili keiki.

Notch impact sensitivity.

He laulā ka pale ʻana i ka alkali, ʻoi aku ma lalo o nā kūlana hoʻomehana.

PEEK

PEEK inoa ʻepekema polyether ether ketone he ʻano polymer i loaʻa i hoʻokahi paʻa ketone a me ʻelua mau paʻa eter i loko o ka hale kaulahao nui. He mea polymer kūikawā. He hiʻohiʻona beige ka PEEK, hiki ke hana maikaʻi, ka pale ʻana a me ka ʻaʻahu ʻana, ke kūpaʻa maikaʻi o ke kolo, ke kūpaʻa kemika maikaʻi loa, ke kūpaʻa maikaʻi ʻana i ka hydrolysis a me ka mahu superheated, kiʻekiʻe wela wela, kiʻekiʻe thermal deformation wela a me ka maikaʻi o ka lapalapa ahi i loko.

Ua hoʻohana mua ʻia ʻo PEEK ma ke kahua o ka aerospace e pani i ka aluminika, titanium a me nā mea metala ʻē aʻe e hana i nā ʻāpana o loko a me waho o ka mokulele. No ka mea he mau waiwai piha maikaʻi loa ka PEEK, hiki iā ia ke hoʻololi i nā mea kuʻuna e like me nā metala a me nā seramika ma nā kahua kūikawā he nui. ʻO kona kūpaʻa wela kiʻekiʻe, ka lubrication ponoʻī, ke kūpaʻa a me ka pale ʻana i ka luhi e lilo ia i kekahi o nā plastics ʻenehana kiʻekiʻe kaulana loa.

Ma ke ʻano he mea polymer thermoplastic, ua like nā ʻano o ka PEI me ka PEEK, a i ʻole ke pani ʻana o PEEK. E nānā kākou i ka ʻokoʻa ma waena o nā mea ʻelua.

Hoʻohālikelike ʻia me PEEK, ʻoi aku ka maikaʻi o ka hana piha o ka PEI, a ʻo kona pōmaikaʻi nui loa aia i ke kumukūʻai, ʻo ia hoʻi ke kumu nui i koho ʻia ai kekahi mau mea hoʻolālā mokulele e ka PEI composite material. ʻOi aku ka haʻahaʻa o ke kumukūʻai piha o kāna mau ʻāpana ma mua o ka metala, thermosetting composites a me PEEK composites. Pono e hoʻomaopopo ʻia ʻoiai ʻoi aku ka kiʻekiʻe o ke kumukūʻai o ka PEI, ʻaʻole kiʻekiʻe loa kona kūpaʻa wela.

I loko o nā mea hoʻoheheʻe chlorinated, hiki mai ka maʻalahi o ke koʻikoʻi, a ʻaʻole maikaʻi ke kūʻē ʻana i nā mea hoʻoheheʻe organik e like me ka PEEK semi-crystalline polymer PEEK. I ka hana ʻana, ʻoiai inā loaʻa i ka PEI ke kaʻina hana o nā plastik ʻenekini thermoplastic kuʻuna, pono ia i ka wela hoʻoheheʻe kiʻekiʻe.