Ibikoresho by'imyenda idafunze ya Polyimide

I. Ibiranga by'ingenzi by'imyenda idafunze ya Polyimide: Ikora neza mu bidukikije bikomeye

Ukoresheje ibyiza by’ibikoresho bya PI n’imiterere yihariye y’uburyo bwo gufunga amazi, umwenda utari uwo kuboha wa polyimide ugaragaza imiterere itatu y’ingenzi irenga imikorere y’imigozi isanzwe ya organic na inorganic mu bihe by’ubushyuhe bwinshi, bitinda ku muriro, birwanya ikirere, kandi bifitanye isano n’imikorere:

1. Guhagarara ku bushyuhe bwinshi + Gutinda k'umuriro: Inzitizi y'umutekano ku bidukikije bishobora guteza akaga gakomeye

Ubudahangarwa bw'ubushyuhe bwinshi ugereranije n'ibikoresho bisanzwe: Bitandukanye na aramid (ubushyuhe bw'igihe kirekire: 204°C) na PTFE (ubushyuhe bw'igihe kirekire: 260°C), polyimide igumana ubuziranenge bw'imiterere yayo mu gihe ikora buri gihe kuri 260°C, ikaba yihanganira ubushyuhe bw'igihe gito kugeza kuri 400°C. Imiterere y'umugozi uvanzwe n'amazi ntabwo yangiritse, nta kimenyetso na kimwe kigaragaza gusaza cyangwa kwangirika nyuma y'imyaka irenga 1.5 ikoreshwa mu bikorwa nko gutwika imyanda no gutwika ahantu hashyushye cyane mu byuma, bigatuma ubuzima bwayo bumara inshuro zirenga eshatu ugereranyije n'ubw'ibikoresho bya aramid.

Kudashira kw'umuriro ku rwego rwo hejuru: Hatabayeho ko hakenewe inyongeramusaruro zigabanya umuriro, ibikoresho bigira igipimo cya ogisijeni (LOI) cya 38% (kirenze cyane 28% bya PTFE na 29%) bya aramid. Ntibyaka cyangwa ngo bishonge iyo bihuye n'umuriro, byizimya ako kanya iyo umuriro ukuweho, kandi ntibisohora imyuka y'uburozi mu gihe cyo gutwika. Ibi bibuza neza gukwirakwira kw'umuriro, bikemura ibibazo bikomeye by'ibikoresho bisanzwe bigabanya umuriro nko gushongesha no gusohora imyuka y'uburozi.

2. Ubudahangarwa bw'ikirere bwuzuye + Gukomera mu mikorere: Intwaro irambye yo guhangana n'ibihe bikomeye

Ubudahangarwa budasanzwe bwo kwangirika no gusaza: Igitambaro kigaragaza ubudahangarwa bwiza ku bintu byinshi bishingiye kuri aside (urugero: aside sulfurike 10%, hydroxide sodium 15%), solvents organic, na UV, hamwe n'igabanuka ry'imbaraga zo gukurura rya ≤8% nyuma y'iminsi 60 yo kwinjizwa mu mazi. Nta gucika intege cyangwa kwangirika bigaragaza iyo umuntu ahuye n'imiraba ya UV yo hanze igihe kirekire, ubushuhe n'ubushyuhe, bigatuma amara imyaka 8-10 mu ngufu za kirimbuzi no mu bikorwa byo hanze - inshuro zirenga 10 ugereranyije n'ibikoresho bisanzwe bya polyester.

Imiterere idasanzwe ya mekanike: Ifite ubucucike bwa fibre ya 1.41 g/cm³ n'imbaraga zo gucikamo za 600 N/5×20 cm, itanga imbaraga zikubye inshuro 20 ugereranyije n'imyenda ya polypropylene ku buremere bumwe. Nyuma yo gucikamo amazi, imbaraga zo gucikamo zigera kuri ≥50 N, hamwe n'imbaraga zo kugumana amazi 100%. Ibi bitsinda ubushyuhe buke bw'imigozi ya basalt n'imbaraga zidahagije za mekanike za PTFE, bigatuma ikoreshwa mu gukabya imitwaro iremereye no mu buryo buhindagurika.

3. Guhuza imikorere + Gutunganya ibintu mu buryo bworoshye: Ishingiro rikoreshwa mu guhindura ibintu mu buryo butandukanye

Gufatana kw'amazi bibungabunga imikorere y'ibikoresho: Uburyo bwo gupfunyika umuvuduko mwinshi butuma fibre ifatana neza nta kwangirika guterwa n'urushinge. Umusaruro uvamo uba woroshye (ubukomere ≤50 Shore A) ufite agatambaro keza, gatuma gukata, kudoda no gushyushya neza. Ibi bikemura ibibazo byo gutunganya imashini gakondo zo mu bwoko bwa PI, akenshi ziba zikomeye kandi zoroshye, mu gihe bitanga ubuso bworoshye, budafite burunguru bwiza bwo guhuza ibice neza.

Ubushobozi bwinshi bwo gukora: Binyuze mu guhindura ubuso cyangwa tekiniki zivanze, umwenda ushobora guhabwa imikorere myinshi ihanitse. Urugero, nyuma yo gutunganya alkali no gushyiramo Fe₃O₄ na Ag nanoparticles, ugira ubushobozi bwo kurinda amashanyarazi (77 dB) no kugarura urumuri (≤-10 dB). Iyo uhujwe na nanofibers, ugira ubushobozi bwo kuyungurura ubushyuhe bwinshi no kurwanya bagiteri, wujuje ibisabwa bitandukanye mu bijyanye no kwihisha no gukoresha mu buvuzi.

II. Uburyo bw'ibanze bwo gukoresha imyenda idafite ipamba ya Polyimide: Ibisubizo bidasimburwa ku bintu bigezweho

Hashingiwe ku miterere yavuzwe haruguru, umwenda utari uwo kuboha wa polyimide wabaye ingenzi mu kuyungurura ubushyuhe bwinshi, kurinda ibidasanzwe, ibikoresho by'ikoranabuhanga/ibya gisirikare, n'ubuvuzi bugezweho, ufasha mu bikorwa bifite ibyago byinshi, bikenewe cyane, kandi biramba:

1. Kuyungurura Ubushyuhe Bukabije no Kurengera Ibidukikije: Igisubizo cy'ibanze cyo gusukura indwara zikomeye

Kuyungurura imyuka ishyushye cyane: Ikoreshwa mu mifuka iyungurura imyanda mu nganda zitwika imyanda no mu mashini zikuramo ivumbi mu nganda zikoresha amakara, iyi myenda ifata neza ivumbi rito n'uduce twangiza ku bushyuhe bwa 300°C, ifite ubushobozi bwo kuyungurura bwa 0.5 μm. Ingufu zayo nyinshi (38%) zirinda ibyago byo gutwika biterwa na potasiyumu na sodiyumu mu ivu ry'ibisazi, bigatuma ubuzima bwayo burushaho kuba bwinshi kurusha ubwa PPS.

Kuyungurura ubushyuhe bwinshi mu nganda: Ibikoresho birimo imyenda iyungurura imyuka iva muri sitasiyo zo kuvanga asphalt n'imifuka iyungurura iyungurura ubushyuhe bwinshi mu nganda zikora imiti. Iyo myenda ihangana n'ubushyuhe bwa 260°C n'ubushyuhe bw'ibinyabutabire, ntiyongerera ibice byayo, igenzura ko ibicuruzwa bisukuye, kandi igaragaza ubushobozi bwo kurwanya kuziba kw'ibinyabutabire, bigabanya ubushobozi bwo kuyungurura ku kigero cya 30% ugereranije n'ibinyabutabire bisanzwe by'ibirahure.

2. Uburinzi n'umutekano byihariye: Umuyoboro w'ubuzima mu bihe by'akaga gakomeye

Ibikoresho byo kwirinda ku giti cyawe: Bikoreshwa nk'igitambaro cyo kwambara imyenda idashya kandi ikoreshwa mu byuma bikingira umuriro n'imyenda yo kwambara imyenda y'abazimya umuriro, ibi bikoresho bigumana ubuziranenge bw'imiterere yabyo kuri 260°C, bifite ubushyuhe bwa 0.03 W/(m·K) gusa, bikinga neza imirasire y'ubushyuhe bwinshi. Imiterere yabyo yoroshye kandi ihumeka itanga ihumure riruta ibikoresho gakondo by'ubwoya bw'amabuye, bigatuma biba byiza cyane mu bikorwa by'ubushyuhe bwinshi mu byuma no kuzimya umuriro.

Ibikoresho byo kurinda ubutabazi bw'impanuka: Ibikoresho birimo imyenda ya gisirikare idashya n'inzitizi zirinda ubutabazi bw'umuriro ahantu hashobora kuba hashobora kwangirika cyane. Ibikoresho birinda ubutabazi bw'umuriro kandi birwanya ikirere ntibingirika iyo habaye ubushuhe bwo hanze, ubushyuhe, cyangwa imirasire y'izuba ikomeye, bikoreshwa nk'uruzitiro rudahinduka rudahinduka. Ingano yarwo ntoya ipfunyitse ituma rushyirwa vuba mu bihe by'impanuka, ikwiriye kwihisha no gutabara mu gihe cy'impanuka za gisirikare.

3. Ikoreshwa ry'ibikoresho by'ikoranabuhanga n'ibya gisirikare: Ishingiro ry'imikorere y'ibikoresho byo mu rwego rwo hejuru

Ibikoresho byo kurinda amashanyarazi: Bikoreshwa mu myenda y’uburiganya ya radar no mu bikoresho by’ikoranabuhanga birwanya kubangamira, uyu mwenda ubasha gufata neza umuraba wa electromagnetic mu buryo burambuye kuri interineti ya 8.2–40 GHz nyuma yo gushyiramo uduce twa magnetic no gushyiramo silver idafite electromagnetic, hamwe n’ubushobozi bwo kurinda kugeza kuri 77 dB. Ugumana imikorere ihamye kuri 250°C, urinda ibikoresho bya gisirikare ku buryo electromagnetic ihungabana mugihe utuma infrared idashobora kwinjira.

Ibikoresho byo gukingira ubushyuhe bwinshi: Ibikoresho birimo imiyoboro yo gukingira moteri z'indege n'igitambaro cyo gukingira ibice by'ikoranabuhanga byo mu rwego rwo hejuru. Ifite imbaraga za dielectric ≥25 kV/mm kuri 260°C kandi nta kwangirika mu mikorere yo gukingira, igitambaro kirwanya ingese ziterwa n'amavuta na lisansi, kikarinda inzira ngufi mu bice by'ikoranabuhanga kandi kigahaza ibyo inganda z'indege n'iz'imodoka zihenze zikeneye.

4. Imyenda yo mu rwego rwo hejuru n'ubuvuzi: Kwita ku mutekano n'isuku

Ibikoresho birinda indwara: Bikoreshwa mu myenda yo kubaga ishobora gusukurwa mu bushyuhe bwinshi no mu bikoresho byo kwambara bidafite allergies, ibi bikoresho bitanga ubushobozi bwo guhuza neza umubiri (ntibitera allergies, ntibitera umujinya) kandi bihangana no gusukurwa mu mwuka mu bushyuhe bwa 134°C nta fibre isohoka, bikurikiza amabwiriza ya GMP. Bituma habaho umutekano mu mikorere mu buryo bugezweho bw'ubuvuzi nko gutera ingingo no kubagwa mu buryo budakunze kugaragara.

Imyenda ikora: Ikoreshwa ririmo imyenda idashya yo gusiganwa ku magare n'imyenda yo kwirinda inganda za kirimbuzi. Imyenda idashya, ihumeka kandi imeze neza ntitera ububabare bw'uruhu igihe kirekire. Irwanya kandi imirasire n'uburozi, ikarinda abakozi gushya no kwangirika mu buryo bwihariye nko mu mikino ya moto no kubungabunga ingufu za kirimbuzi.

Ibyerekeye Yongdeli: Umuhanga mu gukora imyenda idafite inyunganiramitwe ya Polyimide

Changshu Yongdeli Spunlaced Nonwoven Co., Ltd. ikora imiyoboro ikora ku myenda idafunze ya polyimide, itanga ibicuruzwa byihariye bifite uburemere buri hagati ya 60–500 g/㎡ n'ubugari bwa metero 0.2–3.2. Iyi sosiyete itanga kandi amahitamo nyuma yo kuvurwa arimo gusiga irangi rya magnetic, nanofiber compositing, no gusya/guteranya.

Kubindi bicuruzwa cyangwa ibisubizo byihariye, twandikire.