Hoʻopaʻa PTFE

Ke hoʻohana nei i ka sima epoxy a i ʻole ka mea hoʻopili no ka hoʻopaʻa ʻana i ka polymer i ke aniani a me ka metala a iā ia iho.

ʻO ke kūʻē ʻana o ka polytetrafluorethylene (PTFE) i kēlā me kēia ʻano o ka hoʻopili ʻana he kaʻao a he mea hoʻohana pinepine e like me kona inertness kemika.Akā ʻo kēia mau hiʻohiʻona he hoʻokahi drawback koʻikoʻi, paʻakikī loa ka polymer e hoʻopaʻa pono i nā mea ʻē aʻe a iā ia iho.Aia kahi hoʻonā i kēia pilikia i lawe ʻia i ka manaʻo o ka mea kākau e kahi hui i kapa ʻia ʻo Reltek.(E pili ana iā lākou ma lalo nei).ʻO ka hopena o ka pilikia ʻo Sodium Naphthalide i hoʻoheheʻe ʻia i 2-Methoxyethyl Ether a i ʻole Tetrahydrofuran.Hoʻohana ʻia kēia ma ke ʻano he etchant e hoʻololi i nā ʻātoma fluorine ma luna o ka ʻili me kahi ʻano molekika hou aʻe a paʻa.Ma hope o ke kālai ʻana i ka ʻili polymer, ʻoi aku ka nui o ka ʻae ʻana i nā sima like ʻole, me nā mea hoʻopili epoxy resin e like me Araldite, a i ʻole ka Reltek Epoxy Resins.He mea maʻalahi ke kiʻi ʻana a pili i ka wehe ʻana i ka ʻili polymer ʻeleʻele a maloʻo i kahi hopena o Sodium Naphthalide no kahi 2 mau minuke a laila holoi i ka ʻili i kālai ʻia me Isopropanol.ʻO ka ʻili i kālai ʻia he kūpaʻa a paʻa me ka mechanically a paʻa.ʻO ka paʻakikī wale nō ka hana ʻana a me ka mālama ʻana i ka paʻakikī Sodium Naphthalide.

ʻO Sodium Naphthalide kahi mea hoʻemi ikaika loa, a wikiwiki loa ia me ka Oxygen atmospheric a me ka wai.ʻO ka ʻike nui ʻana i ka lewa e hoʻopau koke ia.No laila, hana maikaʻi ʻia a hoʻohana ʻia i loko o kahi pahu mīkina ma lalo o ka nitrogen a i ʻole ka hoʻohana ʻana i ka ʻenehana Scklenk.

Ma ka hoʻomākaukau i hana ʻia e ka mea kākau, 2.5 gm o Naphthalene (GPR Rectapur) i hoʻoheheʻe ʻia i 25 ml o Tetrahydrofuran i loko o kahi paipu Schlenk.Hoʻohui ʻia i kēia hui ʻana he 0.2 gm o ka metala sodium hou i ʻoki ʻia.Ua hoʻomaʻemaʻe ʻia ka ea i loko o ka pahu Schlenk me Argon a hoʻopaʻa ʻia me kahi pani Subaal.Ua pani ʻia ka paipu ʻaoʻao a ua hoʻokomo ʻia ka paipu schlenk i loko o kahi ʻauʻau wai i mālama ʻia ma 45C no ʻumikumamālua hola.

I ka hoʻohana ʻana, ʻoi aku ka maikaʻi o ka Sodium Naphthalide i loko o kahi paipu Schlenk a i ʻole i loko o kahi pahu mīkina lima a ʻoi aku ka maikaʻi o ka hāʻawi ʻana i ka Nitrogen a i ʻole Argon e pale aku i ka oxidation reagent i ka wā manipulations.He hoʻonohonoho no ke kalai ʻana i nā paipu polimer lahilahi no ka hoʻopaʻa ʻana i ke kila kila a i ʻole ka paipu aniani.

Hoʻopaʻa ʻia ka paipu polymer i kālai ʻia ma ka ʻaoʻao loa e pale i ka manaʻo o ka etchant, a hoʻokomo ʻia ma ka lua o kahi nila hypodermic e hou ana i ka subbaseal.ʻO ka Subeal kahi pani paʻa i hiki ke lawe i nā paipu he nui o nā anawaena like ʻole.ʻO ia ke ʻano o nā paipu ākea ākea (a hiki i 6mm od) hiki ke kahakaha ʻia ma kēia ʻano.