Imikhiqizo Yendwangu Engalukiwe ye-Polyimide

I. Izici Eziyinhloko Zendwangu Engalukiwe ye-Polyimide: Umenzi Ophelele Ezindaweni Ezibucayi

Isebenzisa izinzuzo ezingokwemvelo zezinto ze-PI kanye nezakhiwo ezihlukile zenqubo yokudonsa amanzi, indwangu engalukiwe ye-polyimide ibonisa izici ezintathu eziyinhloko ezinqoba imikhawulo yokusebenza kwemicu evamile yezinto eziphilayo kanye nezinga-organic ezimweni ezishisa kakhulu, ezivimbela ilangabi, ezimelana nesimo sezulu, nezihlanganisiwe ngokusebenza:

1. Ukuzinza Kokushisa Okuphezulu + Ukuvinjelwa Komlilo Kwangaphakathi: Isithiyo Sokuphepha Kwezindawo Ezinengozi Enkulu

Ukumelana nokushisa okuphezulu kakhulu uma kuqhathaniswa nezinto ezivamile: Ngokungafani ne-aramid (izinga lokushisa lesikhathi eside: 204°C) kanye ne-PTFE (izinga lokushisa lesikhathi eside: 260°C), i-polyimide igcina ubuqotho besakhiwo ngaphansi kokusebenza okuqhubekayo ku-260°C, ngokubekezelelana kwesikhathi esifushane kufika ku-400°C. Isakhiwo sefayibha esihlanganisiwe ngamanzi asikalimala, asibonisi zimpawu zokuguga noma ukuwohloka ngemva kweminyaka engaphezu kwengu-1.5 yokusetshenziswa okuqhubekayo ezisetshenziswayo ezifana nokushiswa kwemfucuza kanye nezindawo zokushisa eziphakeme zensimbi, okuholela empilweni yesevisi ephindwe kathathu kuneyezinto ze-aramid.

Ukumelana nomlilo okuphezulu: Ngaphandle kwesidingo sezithasiselo ezivimbela umlilo, izinto zithola inkomba yomoya-mpilo elinganiselwe (i-LOI) engu-38% (edlula kakhulu i-PTFE engu-28% kanye ne-aramid engu-29%). Ayivuthi noma incibilike lapho itholakala elangeni, izicisha yona ngokushesha lapho isuswa ilangabi, futhi ayikhiphi amagesi anobuthi ngesikhathi sokusha. Lokhu kuvimbela ngempumelelo ukusabalala komlilo, kubhekana nezinkinga ezibalulekile zezinto ezivimbela umlilo zendabuko njengokulimala okubangelwa ukuncibilika kanye nokukhishwa komusi onobuthi.

2. Ukumelana Nesimo Sezulu Okuphelele + Ukuzinza Kwemishini: Isivikelo Esiqinile Sezimo Ezinzima

Ukumelana nokugqwala nokuguga okumangalisayo: Indwangu ikhombisa ukumelana okuhle kakhulu nemithombo eminingi ye-acid-base (isb., i-10% sulfuric acid, i-15% sodium hydroxide), izinyibilikisi eziphilayo, kanye nemisebe ye-UV, kanye nokulahlekelwa amandla okudonswa okungu-≤8% ngemva kwezinsuku ezingu-60 zokucwiliswa. Ayibonisi ukugqwala noma ukuwohloka ngaphansi kokuchayeka isikhathi eside ku-UV yangaphandle, umswakama, kanye nokushisa, okufeza impilo yenkonzo yeminyaka engu-8-10 emandleni enuzi kanye nezicelo zobunjiniyela bangaphandle—okuphindwe izikhathi eziyishumi kunezinto ezivamile ze-polyester.

Izakhiwo ezivelele zemishini: Njengoba ine-fiber density engu-1.41 g/cm³ kanye namandla okuphuka ande angu-600 N/5×20 cm, inikeza amandla aphindwe ka-20 endwangu ye-polypropylene ngesisindo esifanayo. Ngemva kokufakelwa kwe-hydroentanglement, ukumelana nokudabuka kufinyelela ku-≥50 N, ngokugcinwa kwamandla amanzi angu-100%. Lokhu kunqoba ubuthakathaka obuphansi be-basalt fibers kanye namandla anele emishini e-PTFE, okwenza ifaneleke ukusetshenziswa kwemithwalo esindayo kanye nokucindezeleka okunamandla.

3. Ukuhambisana Kokusebenza + Ukucubungula Okuguquguqukayo: Isisekelo Esiguquguqukayo Sokwenza Ngokwezifiso

I-Hydroentanglement igcina umsebenzi wezinto ezibonakalayo: Inqubo ye-spunlace enomfutho ophezulu iqinisekisa ukuboshwa kwefayibha okuthambile ngaphandle komonakalo ohambisana nokubhoboza ngenaliti. Umkhiqizo ophumayo uthambile (ubulukhuni ≤50 Shore A) nge-drape enhle kakhulu, okuvumela ukusika okuqondile, ukuthunga, kanye ne-thermoforming. Lokhu kuxazulula izinselele zokucubungula ze-PI needle felts zendabuko, ezivame ukuqina futhi ziqhekeke, kuyilapho zinikeza indawo ebushelelezi, engenama-burr efanelekile yokuhlanganiswa kwezingxenye ngokunemba.

Amandla aphezulu okusebenza: Ngokushintsha ubuso noma amasu okuhlanganisa, indwangu inganikezwa imisebenzi eminingi ethuthukisiwe. Isibonelo, ngemva kokwelashwa nge-alkali kanye nokulayisha nge-Fe₃O₄ kanye ne-Ag nanoparticles, ifinyelela ukusebenza okuphezulu kokuvikela i-electromagnetic (77 dB) kanye nokukhanya okuphansi kakhulu (≤-10 dB). Uma ihlanganiswa ne-nanofibers, ikhombisa kokubili ukuhlunga okushisa okuphezulu kanye nezakhiwo zokulwa namagciwane, ihlangabezana nezidingo ezahlukahlukene ekufihleni kwezempi kanye nezicelo zezokwelapha eziphezulu.

II. Izinkambu Zokusetshenziswa Eziyinhloko Zendwangu Engalukiwe ye-Polyimide: Izixazululo Ezingenakuguqulwa Zezimo Eziphezulu

Ngokusekelwe ezicini ezingenhla, indwangu engalukiwe ye-polyimide isibe yinto ebalulekile ekuhlungeni okushisa okuphezulu, ekuvikelweni okukhethekile, kuma-elekthronikhi/ezempi, kanye nasezindaweni zezokwelapha ezithuthukisiwe, ihlangabezana nezinhlelo zokusebenza ezinobungozi obukhulu, ezifunwa kakhulu, kanye nezikhathi ezinde:

1. Ukuhlunga Okuphezulu Kokushisa Nokuvikelwa Kwemvelo: Isixazululo Esiyinhloko Sokuhlanza Izimo Ezinzima

Ukuhlunga igesi yoketshezi lokushisa okuphezulu: Isetshenziswa ezikhwameni zokuhlunga zezitshalo zokushisa imfucuza kanye nezihlungi zokususa uthuli ezitshalweni zamandla ezisebenzisa amalahle, indwangu ibamba ngempumelelo uthuli olucolekile kanye nezinhlayiya ezigqwalisayo ku-300°C, ngokunemba kokuhlunga okungu-0.5 μm. I-LOI yayo ephezulu (38%) ivimbela izingozi zokusha ezibangelwa yi-potassium kanye ne-sodium emlotheni wezimpukane, inikeza impilo yesevisi engaphezu kokuphindwe kabili kwezinto zokuhlunga ze-PPS.

Ukuhlunga okushisa okuphezulu kwezimboni: Izicelo zifaka izindwangu zokuhlunga zokukhishwa kwesiteshi sokuxuba i-asphalt kanye nezikhwama zokuhlunga zokuhlunga okushisa okuphezulu kwezitshalo zamakhemikhali. Indwangu imelana namazinga okushisa angu-260°C kanye nokugqwala kwe-organic solvent, ayimunci izingxenye zokuhlunga, iqinisekisa ubumsulwa bomkhiqizo, futhi ibonisa ukusebenza okuphezulu kokulwa nokuvaleka, kunciphisa ukumelana kokuhlunga ngo-30% uma kuqhathaniswa nezihlungi zefayibha yengilazi yendabuko.

2. Ukuvikelwa Nokuphepha Okukhethekile: Umzila Wokuphila Ezimweni Eziyingozi Kakhulu

Imishini yokuzivikela yomuntu siqu: Isetshenziswa njengendwangu yezingubo ezingashisi zensimbi kanye nendwangu yezingubo zokuvikela ukushisa zabacimi bomlilo, le nto igcina ubuqotho besakhiwo ku-260°C, ngokushisa okungu-0.03 W/(m·K kuphela), okuvimbela ngempumelelo imisebe yokushisa ephezulu. Ukuthungwa kwayo okuthambile, okuphefumulayo kunikeza induduzo enkulu kakhulu kunezinto zendabuko zoboya bedwala, okwenza kube kuhle kakhulu emisebenzini yokushisa ephezulu kwezensimbi kanye nokulwa nomlilo.

Imikhiqizo yokuvikela eziphuthumayo: Izinhlelo zokusebenza zifaka indwangu yetende engashisi umlilo kanye nezithiyo ezivimbela umlilo ezindaweni ezinobungozi obukhulu. Izinto ezivimbela umlilo kanye nezimelana nesimo sezulu aziboli ngaphansi komswakama wangaphandle, ukushisa, noma ukuvezwa okunamandla kwe-UV, zisebenza njengesivikelo esiqinile esiqinile. Ubukhulu bayo obugoqiwe obuncane buvumela ukuthunyelwa okusheshayo ezimweni eziphuthumayo, ezifanele ukufihla amasosha kanye nokusabela ezingozini zamakhemikhali.

3. Izicelo Ze-elekthronikhi Nezempi: Umongo Wokusebenza Kwemishini Esezingeni Eliphezulu

Izinto zokuvikela nge-electromagnetic: Ezisetshenziswa ezindwangu eziyimfihlo ze-radar kanye ne-anti-interference padding yamadivayisi kagesi, indwangu ifinyelela ukumuncwa kwamagagasi kagesi okuphumelelayo kulo lonke ububanzi be-broadband obungu-8.2–40 GHz ngemuva kokulayisha izinhlayiya ze-magnetic kanye ne-electroless silver plating, ngempumelelo yokuvikela efika ku-77 dB. Igcina ukusebenza okuzinzile ku-250°C, ivikela imishini yezempi ekuphazamisekeni kwe-electromagnetic ngenkathi ivumela i-infrared stealth.

Izingxenye zokushisa okuphezulu: Izicelo zifaka phakathi ama-insulation liner ezinjini zezindiza kanye nendwangu yokuvala izingxenye ze-elekthronikhi eziphezulu. Njengoba inamandla e-dielectric ≥25 kV/mm ku-260°C futhi ingenawo ukonakala ekusebenzeni kokushisa, indwangu imelana nokugqwala ngamafutha kanye namafutha, ivimbela ama-short circuits ezingxenyeni ze-elekthronikhi futhi ihlangabezana nezidingo zezimboni zezindiza kanye nezimoto eziphambili.

4. Izindwangu Zezokwelapha Nezisezingeni Eliphezulu: Ukuqinisekisa Ukuphepha Nokuhlanzeka

Imikhiqizo yokuvikela yezokwelapha: Isetshenziswa ezingodweni zokuhlinzwa ezihlanzwayo ezishisa kakhulu kanye nezingxenye zokugqoka ezihlanzekile, le nto ihlinzeka ngokuhambisana okuhle kakhulu kwezinto eziphilayo (ayibangeli ukungezwani komzimba, ayicasuli) futhi imelana nokuhlanza umusi ngo-134°C ngaphandle kokuchitheka kwefayibha, ihambisana nezindinganiso ze-GMP ezihlanzekile. Iqinisekisa ukuphepha kokusebenza ezimweni zezokwelapha ezithuthukisiwe njengokufakelwa kwezitho zomzimba kanye nokuhlinzwa okungangenisi kakhulu.

Izindwangu ezisebenzayo: Izicelo zifaka phakathi amasudi angashisi amalangabi okugijima kanye nezingubo zokuzivikela embonini yenuzi. Indwangu ehlala ibamba amalangabi, ephefumulayo, futhi ekhululekile ayibangeli ukucasuka kwesikhumba ngesikhathi sokuguguleka isikhathi eside. Iphinde imelane nemisebe kanye nokugqwala kwamakhemikhali, ivikele abasebenzi ekushiseni nasekuchayweni yimisebe ezindaweni ezikhethekile njengemidlalo yezimoto kanye nokugcinwa kwamandla enuzi.

Mayelana neYongdeli: Umkhiqizi Ochwepheshe Wezindwangu Ezingalukiwe zePolyimide

I-Changshu Yongdeli Spunlaced Nonwoven Co., Ltd. isebenzisa imigqa yokukhiqiza ezenzakalelayo yezindwangu ezingezona eze-polyimide, inikeza imikhiqizo eyenziwe ngokwezifiso enesisindo esisukela ku-60–500 g/㎡ kanye nobubanzi obungu-0.2–3.2 m. Le nkampani iphinde inikeze izinketho zangemva kokwelashwa okuhlanganisa ukumbozwa okunamandla, ukuhlanganiswa kwe-nanofiber, kanye nokushiswa/ukuhlelwa kwekhalenda.

Ukuze uthole amasampula omkhiqizo noma izixazululo ezenziwe ngokwezifiso, sicela usithinte.