Zvigadzirwa zveMachira Asina Kurukwa zvePolyimide

I. Hunhu Hukuru hweMachira Asina Kurukwa ePolyimide: Muiti Wese Munzvimbo Dzakanyanya Kuipa

Ichishandisa zvakanakira zvePI uye hunhu hwakasiyana hwe hydroentanglement process, jira re polyimide risina kurukwa rinoratidza hunhu hutatu hukuru hunokunda miganhu yekushanda kwemafiber echinyakare neechisiri echisikigo mune mamiriro ekupisa kwakanyanya, anodzivirira moto, anodzivirira mamiriro ekunze, uye akabatanidzwa mukushanda:

1. Kugadzikana Kwekupisa Kwakanyanya + Kudzora Murazvo Wemukati: Chidziviriro Chekuchengetedza Nzvimbo Dzine Njodzi Yakanyanya

Kudzivirira kupisa kwakanyanya kana tichienzanisa nezvinhu zvemazuva ose: Kusiyana ne aramid (tembiricha yebasa renguva refu: 204°C) uye PTFE (tembiricha yebasa renguva refu: 260°C), polyimide inochengetedza chimiro chayo pasi pekushanda nguva dzose pa260°C, nekushivirira kwenguva pfupi kusvika 400°C. Chimiro chefiber chakakanganiswa nemvura chinoramba chisina kukuvara, chisingaratidzi kukwegura kana kuora mushure memakore anopfuura 1.5 ekushandiswa nguva dzose mukushandiswa kwakadai sekupiswa kwemarara uye nzvimbo dzekupisa zvakanyanya dzesimbi, zvichikonzera hupenyu hwebasa hwakapetwa katatu pane hwezvinhu zvearamid.

Kudzivirira moto kwepamusoro-soro: Pasina kudiwa kwekuwedzera kunodzivirira moto, chinhu ichi chinosvika pachiyero cheoxygen index (LOI) chinogumira che38% (chinopfuura zvakanyanya 28% yePTFE uye 29%) yearamid. Hachibatidzi kana kunyunguduka kana chawira mumoto, chinodzima chega ipapo ipapo kana moto wabviswa, uye hachiburitse magasi ane chepfu panguva yekutsva. Izvi zvinobudirira kudzivirira kupararira kwemoto, zvichigadzirisa zvipingamupinyi zvakakosha zvezvinhu zvechinyakare zvinodzivirira moto zvakaita sekukuvara kunokonzerwa nekunyunguduka uye kuburitsa utsi hune chepfu.

2. Kuramba Mamiriro Ekunze Kwakazara + Kugadzikana Kwemakanika: Nhumbi Dzinogara Dzekudzivirira Mamiriro Ekunze Akaoma

Kuramba kusviba nekukwegura: Jira iri rinoratidza kusimba kwakanyanya kune akawanda ma acid-base media (semuenzaniso, 10% sulfuric acid, 15% sodium hydroxide), organic solvents, uye UV radiation, nekurasikirwa nesimba rekudhonza kwe ≤8% mushure memazuva makumi matanhatu ekunyudzwa. Hariratidzi kusviba kana kuora kana rakaiswa paUV yekunze kwenguva refu, hunyoro, uye kupisa, zvichiita kuti rishande kwemakore 8-10 musimba renyukireya uye mainjiniya ekunze—kanopfuura kagumi pane zvinhu zve polyester zvemazuva ese.

Hunhu hwakanaka hwemakanika: Nekuwanda kwefiber ye1.41 g/cm³ uye simba rekupwanya refu re600 N/5×20 cm, inopa simba rakapetwa makumi maviri remachira epolypropylene ane huremu hwakafanana. Mushure me hydroentanglement, simba rekubvaruka rinosvika ≥50 N, ne100% wet strength retention. Izvi zvinokunda kuputsika kwebasalt fibers pakupisa kwakaderera uye simba rePTFE risina kukwana, zvichiita kuti ive yakakodzera kushandiswa kwezvinhu zvinorema uye zvinodzvinyirira.

3. Kuenderana Kwebasa + Kugadziriswa Kunochinjika: Hwaro Hunochinjika hweKugadzirisa

Kudyidzana kwemvura kunochengetedza mashandiro echinhu: Maitiro e spunlace ane simba guru anoita kuti fiber ibatane zvinyoro nyoro pasina kukuvara kunokonzerwa nekuboorwa netsono. Chigadzirwa chinobuda chinenge chakapfava (kuomarara ≤50 Shore A) chine jira rakanaka, zvichibvumira kucheka zvakananga, kusona, uye thermoforming. Izvi zvinogadzirisa matambudziko ekugadzirisa ma PI needle felts echinyakare, anowanzo kuomarara uye kutsemuka, ukuwo zvichipa nzvimbo yakapfava, isina burr yakakodzera kubatanidzwa kwezvikamu zvakanyatsonaka.

Kugona kukuru kwekushanda: Kuburikidza nekuchinja pamusoro kana matekiniki ekubatanidza, jira rinogona kuve nemabasa akawanda epamusoro. Semuenzaniso, mushure mekugadzirisa alkali uye kurodha neFe₃O₄ neAg nanoparticles, rinowana kushanda kwakanyanya kwekudzivirira kwemagetsi (77 dB) uye ultra-low reflectivity (≤-10 dB). Kana rikasanganiswa nenanofibers, rinoratidza zvese kupfapfaidza kwakanyanya uye hunhu hwemabhakitiriya, richizadzisa zvinodiwa zvakasiyana-siyana mukushandiswa kwemauto ekudzivirira uye kushandiswa kwepamusoro-soro kwekurapa.

II. Nzvimbo Dzakakosha Dzekushandisa Machira Asina Kurukwa ePolyimide: Mhinduro Dzisingatsiviwe dzeZviitiko Zvepamusoro

Zvichibva pahunhu hwataurwa pamusoro apa, jira risina kurukwa repolyimide rave chinhu chakakosha mukusefa kupisa kwakanyanya, dziviriro yakakosha, zvemagetsi/zvemauto, uye zvekurapa zvepamusoro, zvichibatsira pakushandisa zvinhu zvine njodzi, zvinodiwa zvakanyanya, uye zvinogara kwenguva refu:

1. Kusefa Kwekupisa Kwakanyanya uye Kudzivirirwa Kwezvakatipoteredza: Mhinduro Yekutanga Yekuchenesa Mamiriro Ezvinhu Akaoma

Kusefa gasi rinopisa zvakanyanya: Rinoshandiswa mumabhegi efirita ekupisa marara uye mafirita ekubvisa guruva mumafekitori emagetsi anoshandiswa marasha, jira iri rinobata guruva rakatsetseka uye zvidimbu zvinoparadza pa300°C, nekunyatsosefa kwe0.5 μm. LOI yaro yakakwira (38%) inodzivirira njodzi dzekupiswa nepotassium nesodium muash inobhururuka, zvichipa hupenyu hwebasa hunopfuura kaviri pane hwezvinhu zvefirita zvePPS.

Kusefa kwemafuta emumaindasitiri: Mashandisirwo anosanganisira machira ekusefa ekupisa kweasphalt mixing station uye mabhegi ekusefa ekupisa kwemafuta emumaindasitiri emakemikari. Jira iri rinokwanisa kushivirira tembiricha ye260°C uye ngura yeorganic solvent, harinyungudi zvikamu zvefiltrate, rinovimbisa kuchena kwechigadzirwa, uye rinoratidza kushanda kwakanaka kwekudzivirira kuvharika, zvichideredza kuramba kusefa ne30% zvichienzaniswa nemafirita egirazi echinyakare.

2. Dziviriro neKuchengetedzeka Kwehunyanzvi: Nzira Yekubatsira Muzviitiko Zvine Njodzi Yakanyanya

Midziyo yekudzivirira: Inoshandiswa sejira rezvipfeko zvisingatsvi zvesimbi uye jira remachira ekudzivirira kupisa evanodzima moto, jira iri rinochengetedza chimiro charo pa260°C, nekupisa kwe0.03 W/(m·K) chete, zvichidzivirira mwaranzi yekupisa kwepamusoro-soro. Magadzirirwo aro akapfava, anofema anopa nyaradzo yakakura kupfuura zvinhu zvechinyakare zvemakushe ematombo, zvichiita kuti rive rakakodzera kushandiswa pakupisa kwepamusoro-soro mukugadzira simbi nekudzimisa moto.

Zvigadzirwa zvekudzivirira njodzi: Zvishandiso zvinosanganisira jira rematende rinodzivirira moto remauto uye zvidziviriro zvinodzivirira moto munzvimbo dzine njodzi huru. Chinhu ichi chinodzivirira moto uye chinodzivirira mamiriro ekunze hachiori kana chiri kunze, kana paine hunyoro, kupisa, kana UV yakasimba, chinoshanda sechidziviriro chakasimba. Saizi yacho yakapetwa yakamanikana inobvumira kuiswa nekukurumidza munjodzi, yakakodzera kufukidza mauto uye kupindura kunjodzi dzemakemikari.

3. Mashandisirwo Emagetsi Nemauto: Chinhu Chinokosha Pakushanda Kwemidziyo Yepamusoro-soro

Zvinhu zvekudzivirira magineti: Zvinoshandiswa mumachira eradar strive uye anti-interference padding yemidziyo yemagetsi, jira iri rinowana electromagnetic wave absorption inoshanda zvakanaka mu8.2–40 GHz broadband range mushure mekurodha magineti particles uye electroless silver plating, nekushanda kwekudzivirira kusvika 77 dB. Rinochengetedza kushanda kwakasimba pa250°C, richidzivirira midziyo yemauto kubva mukukanganiswa kwemagetsi uku richibvumira infrared strive.

Zvishandiso zvekudzivirira kupisa kwakanyanya: Zvinoshandiswa zvinosanganisira machira ekudzivirira kupisa einjini dzendege uye jira rekuvhara zvinhu zvemagetsi zvemhando yepamusoro. Nesimba re dielectric ≥25 kV/mm pa260°C uye pasina kuora kwekushanda kwekudzivirira kupisa, jira iri rinodzivirira ngura nemafuta nemafuta, richidzivirira mashort circuits muzvikamu zvemagetsi uye richizadzisa zvinodiwa neindasitiri yendege neyemotokari yepamusoro.

4. Machira Ekurapa Neemhando Yepamusoro: Kuve nechokwadi chekuchengetedzwa uye kuchena

Zvigadzirwa zvekudzivirira pakurapa: Zvinoshandiswa mumagauni ekuvhiya anopiswa zvakanyanya uye magauni ekuvhiya asina kupiswa, chinhu ichi chinopa hutano hwakanaka (hachibatanidzi allergies, hachitsamwisi) uye chinotsungirira 134°C steam sterilization pasina fiber shedding, zvichitevedzera mitemo yeGMP isina kupiswa. Zvinovimbisa kuchengetedzeka pakushanda kwemuviri mumamiriro ekurapa epamusoro akadai sekuisirwa nhengo uye kuvhiyiwa kusingapindi zvakanyanya.

Machira anoshanda: Mashandisirwo anosanganisira masutu asingatsvi murazvo emujaho uye mbatya dzinodzivirira indasitiri yenyukireya. Jira iri rinodzivirira murazvo nguva dzose, rinofema, uye rinonyaradza harikonzere ganda kushatirwa kana richinge rapera kwenguva refu. Rinodzivirirawo mwaranzi nemakemikari, richidzivirira vashandi kubva mukutsva uye kusvibiswa nemwaranzi munzvimbo dzakagadzirwa senge mota dzemotokari uye kuchengetedza simba renyukireya.

Nezve Yongdeli: Nyanzvi Mugadziri wePolyimide Nonwoven Fabrics

Changshu Yongdeli Spunlaced Nonwoven Co., Ltd. inoshandisa michina yekugadzira machira asina kurohwa epolyimide otomatiki, ichipa zvigadzirwa zvakagadzirwa zvine huremu hunotangira pa60–500 g/㎡ uye upamhi hwe0.2–3.2 m. Kambani iyi inopawo sarudzo dzemushure mekurapwa dzinosanganisira magnetic coating, nanofiber compositing, uye singeing/calendaring.

Kuti muwane mienzaniso yezvigadzirwa kana mhinduro dzakagadzirwa, ndapota taurai nesu.