He rauemi tino noa te Polytetrafluoroethylene, PTFE rānei, e whakamahia whānuitia ana i roto i te nuinga o ngā ahumahi nui. Ka pā tēnei fluoropolymer tino-hinuhinu, maha-whakamahinga ki te katoa mai i ngā ahumahi rererangi me ngā ahumahi motuka (hei taupoki ārai i runga i ngā taura) ki te tiaki i ngā taonga puoro (kei roto i te hinu takirere parahi me ngā taonga puoro rakau hei whakamahi i runga i ō rātou wāhanga neke). Ko tōna whakamahinga rongonui pea ko te whakamahi hei mata kore-piri i runga i ngā kohua me ngā paraharaha. Ka taea te hanga PTFE hei wāhanga whakarewa; whakamahia hei hononga paipa ngāwari, hei tinana takirere, hei ārai hiko, hei peera, me ngā taputapu; ā, ka whakaputaia hei ngongo.
Nā te ātete matū nui me te koretake o te matū, me ngā āhuatanga mama engari kaha o te PTFE, he tino painga mō te hanga me te whakamahi i ngā taputapu hauora. Nā te iti rawa o te tauwehenga waku (he huarahi pāngarau tēnei hei kī he tino pahekeheke te mata),Ngā ngongo PTFEka taea te whakamahi hei whakawhiti i ngā matū kino, i ngā taputapu hauora rānei e tika ana kia mau tonu te parakore, ā, me uru haumaru ki roto i te tinana i te wā pokanga. He tino hinuhinu, he pakari, he angiangi hoki ngā ngongo PTFE, ā, he tino pai mō te tohu arataki catheter (te whānui o roto) e hiahia ana kia neke noa ngā taputapu pēnei i ngā stent, ngā poihau, te atherectomy, ngā taputapu angioplasty rānei, me te kore e mataku kei mau, kei ārai rānei. Nā te mea kāore he mea e piri ana ki tēnei mea, ka taea hoki te whakararu i te kaha o ngā huakita me ētahi atu mate urutā ki te piri ki ngā ngongo, ā, ka puta he mate i te hōhipera.
Ko ēnei āhuatanga whakamiharo katoa o te PTFE te tikanga he tata tonu te herea ki tētahi atu mea. Mena kei te whakamahia hei paninga, hei hiri hiri, hei ngongo rānei me ngā koti Pebax me ngā hononga kirihou, he tino tūponotanga me piri ki tētahi atu rauemi. Kua kite pea koe i tā mātou i kōrero ai: kāore he mea e piri ana ki te PTFE. Ko ngā āhuatanga e tino pai ai tēnei rauemi ki ngā kamupene taputapu hauora ka puta he wero hanga i te wā e whakawhanake ana me te whakaputa hua. He tino uaua te piri o ngā paninga, ngā elastomers, me ētahi atu wāhanga taputapu ki te PTFE, ā, me tino whakahaere i ngā tukanga.
Nā, me pēhea te hanga a ngā kaihanga i tēnei rauemi e whakamahia whānuitia ana, kāore e taea te here, kia taea ai te here? Ā, me pēhea hoki rātou e mōhio ai kua tika te tukatuka, te whakarite rānei, ā, kua rite tonu mō te here, te paninga rānei?
Te Hiranga o te Whakairo Matū PTFE
Hei whakamārama i te take e hiahiatia ai te whakairo matū, me mārama te take o te korenga o te kaha ki te here i te PTFE. He tino pumau ngā hononga matū o te PTFE, ā, he uaua ki te hono atu ki tētahi atu mea, ahakoa mō te wā poto.
Nā te mea he koretake te PTFE i roto i ngā matū, arā, kāore te mata e tauhohe ki tētahi ngota matū e pā atu ana ki a ia, ahakoa kei te rangi, kei runga rānei i te mata o ētahi atu rauemi, me whakarerekē matū tōna mata kia piri ai ki ngā taura, ki ngā konganuku, ki ngā ngongo rānei e whakamahia ana.
He tukanga matū te piri katoa, e taunekeneke ana ngā paparanga ngota ngota 1-5 o runga o te mata me ngā matū kei roto i ngā paparanga ngota ngota 1-5 o runga o tētahi mata e whakamahia ana ki reira. Nō reira, me hanga te mata o te PTFE kia tauhohe matū, kaua kia kore e mahi matū kia pai ai te hononga. I roto i te Pūtaiao Rauemi, ko te mata e tino tauhohe ana, e hiahia ana ki te hono atu ki ētahi atu ngota ngota ka kiia he "mata pūngao-teitei." Nō reira, me tango te PTFE mai i te āhua "pūngao iti", koinei tōna āhua taketake, ki te āhua "pūngao teitei", he kounga ka taea te hono.
He iti noa ngā huarahi hei mahi i tēnei, tae atu ki te maimoatanga plasma korehau, ā, kei reira ētahi e kī ana ka taea e rātou te whakatutuki i tētahi mata piri ki runga i te PTFE mā te oro, te karawarawa, te whakamahi rānei i ngā paninga i hangaia mō te PVC, mō ngā polyolefin rānei. Heoi, ko te tikanga tino noa, ā, kua whakamātauhia e te pūtaiao, ko te tukanga e kiia nei ko te whakairo matū.
Mā te whakairo ka pakaru ētahi o ngā hononga waro-hauora o te PTFE (e hanga ana i ngā fluoropolymer katoa), ka huri i ngā āhuatanga matū o te wāhi kua whakairohia, ka nekehia mai i te mata kore mahi ki tētahi mata hohe, ā, ka taea te taunekeneke matū ki ētahi atu matū. Kāore i te tino hinuhinu te mata e puta mai ana, engari he mata inaianei ka taea te whakapiri, te hanga, te hono rānei ki ētahi atu rauemi, me te tuku hoki kia tāia, kia whakairohia rānei.
Ka mahia te whakairo mā te whakanoho i te PTFE ki roto i te otinga konutai, pērā i te Tetra Etch e whakamahia whānuitia ana. Ko te tauhohenga matū e puta mai ana me te mata ka tango i ngā ngota fluorine mai i te tuara waro-fluorine o te fluoropolymer, ka waiho ngā ngota waro kāore i te nui ngā irahiko. He tino nui te pūngao o te mata hou kua whakairohia, ā, ina pāngia e te hau, ka tukuna ngā ngota hāora, te mamaoa wai, me te hauwai kia rere ki roto hei whakakapi i ngā ngota fluorine, ka taea ai te whakahoki mai i ngā irahiko. Ko te hua o tēnei tukanga whakaora he kiriata tauhohenga o ngā ngota i runga i te mata e āhei ai te piri.
Ko tētahi o ngā painga nui o te whakairo matū ko tōna kaha ki te whakarerekē i ngā paparanga ngota ngota o runga anake, ā, ka waiho te toenga o te PTFE kia mau tonu me ōna āhuatanga ahurei katoa.
Me pēhea te manatoko i te ōritetanga o tētahi tukanga whakairo matū.
He rite tonu ngā āhuatanga matua o te PTFE, nā te mea ko ngā paparanga ngota o runga anake ka pā ki te whakairo matū. Heoi anō, tera pea he parauri, he parauri rānei te tae o te ngongo. Te āhua nei kāore te rerekētanga o te tae e pā ana ki te kaha o te mata ki te piri, nō reira kaua e whakamahia tēnei rerekētanga hei tohu tūturu mō te pai o te whakairo o te PTFE.
Ko te huarahi pai ki te mōhio ko tāu whakairo i hanga te momo mata e rapuhia ana e koe ko te whakamahi i tētahi tikanga e whakamahia ana e ngā tohunga whakairo katoa: te ine i ngā koki pa ki te wai. Ka mahia tēnei tikanga mā te whakatakoto i tētahi pata wai tino parakore ki runga i te PTFE me te ine i te whanonga o taua pata. Ka pupū ake te pata iti nā te mea he nui ake tōna kukume ki a ia anō i te PTFE, ka "mākū" rānei, ka papatahi ki te mata nā te mea he nui tōna kukume ki te PTFE. I te nuinga o te wā, ko te angitu o te whakairo matū - ka iti ake te koki pa (ka papatahi te pata). Ka kiia tēnei ko te whakamātautau i te "mākū" o te mata nā te mea, ki te tika te whakairo o te mata, ā, ka horapa te pata wai, ka nui ake te mata ka mākū.
Te ahuai runga akee whakaatu ana i te tirohanga mai i runga ki raro o te pata wai (i roto i te mowhiti iti kōwhai me te kikorangi) i runga i te ngongo PTFE i mua i te whakairohia. E kite ana koe, ko te taha o te pata he koki 95-tohu ki te mata o te ngongo.
E whakaatu ana te ahua i runga ake nei i tētahi pata wai rite tonu i whakatakotoria ki runga i tētahi ngongo PTFE i muri i te keri. Ka taea e koe te kite kua horapa atu te pata ki runga i te mata o te ngongo nā te mea he nui ake te mowhiti kōwhai me te kikorangi. Ko te tikanga tēnei kei te hanga te taha o te keri i tētahi koki whakapā iti iho ki te mata o te ngongo. Ā, ina inehia taua koki ki te taputapu Surface Analyst, i tangohia mai ai ēnei whakaahua e rua, ka kite tātou, āe, ko te koki he 38 nekehanga. Mena ka tutuki i tēnā ā mātou whakaritenga kua whakaritea mō te tau e tika ana kia pāngia e mātou hei whakarite kia taea te here i tēnei ngongo, kāti kua whakamanahia e mātou kua keri rawaka te mata.
Mō te whakamahinga tino whai hua o te whakamātautau koki pa wai, he mea nui kia mahi tahi me tētahi Kairangahau Mata kia mārama ai koe ki te whānuitanga koki tino pai hei whakatutuki i muri i tō tārai. Mā tēnei ka taea e koe te hanga i tētahi tukanga hononga matapae i runga i tētahi whakatakotoranga ka taea te ine. Nā te mea ki te mōhio koe me hanga e koe he mata me tētahi koki pa motuhake, kāti ka mōhio koe ka angitu tō piri.
Hei tāpiritanga, kia pai ai te mahi whakairo, he mea nui kia inehia te koki pa ki te wai i mua i te whakairo. Mā te aromatawai i te ma o te papaanga ka taea e koe te mōhio tika ki ngā tawhā e tika ana mō te whakairo kia tutuki ai ō whakaritenga koki pa.
Te Tiaki i tō Whakairoiro
He mea nui te penapena tika o te PTFE kua whakairohia kia angitu ai te tukanga piri. Ko te penapena me te rarangi taonga he Pūwāhi Mana Matua (CCP). Kei ngā wāhi katoa o te tukanga katoa ēnei CCP ka whai wāhi te mata o te rauemi ki te huri, mō te pai, mō te kino rānei, ā, kāore pea i te whakaarohia. He mea nui te CCP rokiroki mō te PTFE kua whakairohia nā te mea he tino tauhohe te mata kua horoia houtia, ā, ko tetahi mea ka pa atu ki a ia ka taea te whakarerekē me te whakaiti i tāu mahi.
Ko te tikanga pai mō te penapena PTFE i muri i te whakairo ko te whakamahi i te takai taketake i tae mai ai mēnā ka taea te hiri anō. Ki te kore e wātea ana, he pai ngā putea ārai-UV hei whakakapi. Puritia te PTFE kia matara atu i te hau me te makuku i ngā wā katoa e taea ana, ā, i mua i te ngana ki te piri ki a ia, me ine i te koki whakapā kia mau tonu ai tōna kaha ki te piri.
He rauemi tino pai te PTFE, he maha ngā whakamahinga, engari kia tino whai hua ai, me whakairo matū, kātahi ka honoa i te nuinga o te wā. Hei whakarite kia oti pai tēnei, me whakamahi he whakamātautau e aro ana ki ngā huringa matū o te mata. Mahi tahi me tētahi tohunga rauemi e mārama ana ki tō tukanga hanga hei whakapai ake i tō whakairo me te whakauru i te tino māramatanga ki roto i tō rerenga mahi.
Wā tuku: Hurae-17-2023