Mkpokọta PTFE

Iji ciment epoxy ma ọ bụ nrapado maka akara polymer na iko na metal na onwe ya.

Nguzogide polytetrafluorethylene (PTFE) na ụdị ọ bụla nke nrube isi bụ akụkọ ifo ma na-abakarị uru dị ka kemịkalụ ya.Ma àgwà ndị a nwere otu ihe ndọghachi azụ dị ịrịba ama, na polymer siri ike ijikọ dabere na ihe ndị ọzọ ma ọ bụ n'onwe ya.Enwere ngwọta maka nsogbu a nke otu ụlọ ọrụ akpọrọ Reltek wetara onye ode akwụkwọ.(Ndị ọzọ gbasara ha n'okpuru).Ihe ngwọta maka nsogbu ahụ bụ Sodium Naphthalide agbazere na 2-Methoxyethyl Ether ma ọ bụ na Tetrahydrofuran.A na-eji nke a dị ka ihe ọzọ iji dochie atom fluorine n'elu site na ụdị molekụla na-emeghachi omume na nke nwere ike jikọta.Mgbe emechara elu polymer na-anabata nke ọma nke cement dị iche iche, gụnyere epoxy resin adhesives dị ka Araldite, ma ọ bụ Reltek Epoxy Resins pụrụ iche.Etching ahụ kwụ ọtọ ma na-agụnye ikpughe elu polima gbajiri agbaji na nke mebiri emebi na ngwọta nke Sodium Naphthalide maka ihe dịka nkeji 2 wee jiri Isopropanol sachaa elu ahụ.The etched elu kwụsiri ike na mechanically na-eguzogide na bondable.Naanị ihe isi ike bụ ime na njikwa nke Sodium Naphthalide complex.

Sodium Naphthalide bụ ihe na-ebelata ike nke ukwuu, ọ na-eji ikuku oxygen na mmiri eme ihe ngwa ngwa.Mkpughe ọ bụla dị ịrịba ama na ikuku ga-emenyụ ya ngwa ngwa.Ya mere, a na-eme ya nke ọma ma jiri ya na igbe uwe n'okpuru nitrogen ma ọ bụ iji teknụzụ Scklenk.

Na nkwadebe nke onye edemede na-arụ ọrụ, 2.5 gm nke Naphthalene (GPR Rectapur) gbazere na 25 ml nke Tetrahydrofuran na tube Schlenk.Na ngwakọta a, a na-agbakwunye 0,2 gm nke ọla sodium a kpụchara ọhụrụ.Ejiri Argon sachaa oghere ikuku dị na tube Schlenk ma jiri ihe nkwụsị Subaseal mechie ya.A na-emechi ọpịpị dị n'akụkụ ma tinye schlenk tube n'ime mmiri ịsa ahụ na 45C maka awa iri na abụọ.

N'iji ya eme ihe, a na-edozi sodium Naphthalide kacha mma na tube Schlenk ma ọ bụ n'ime igbe aka na ntinye nke Nitrogen ma ọ bụ Argon dị mma iji gbochie reagent oxidation n'oge nhazi.Nhazi maka etching tubes polymer dị mkpa maka akara n'ime igwe anaghị agba nchara ma ọ bụ tubing iko.

A na-emechi tube polymer ka etched na njedebe dị anya iji gbochie ọchịchọ nke etchant, ma tinye ya n'ime oghere nke agịga hypodermic nke na-apu n'ime ala.Subaseal bụ mmechi dị iche iche n'ihi na ọ nwere ike iburu ọtụtụ tube nke dayameta dị iche iche.Nke a pụtara na tubes sara mbara (ruo 6mm od) nwere ike ịdepụta n'ụzọ dị otú a.