Ibikoresho by'ibanze muri masike yo kwirinda icyorezo - polypropilene

Ibikoresho nyamukuru bya masike nipolipropilene idoda. Ubuvuzi bwo kubaga mubuvuzi busanzwe bukozwe mubice bitatu byimyenda idoda, aribyo imyenda ya spunbond idoda, S, gushonga imyenda idoda M, hamwe nigitambaro kidoda S, kizwi nka SMS; Igice cy'imbere gikozwe mu myenda isanzwe idoda, ifite uruhu rwiza kandi rukurura uruhu; Igice cyo hanze gikozwe mu mwenda utarimo amazi udoda, ufite umurimo wo guhagarika amazi kandi ukoreshwa cyane cyane mu guhagarika amazi yatewe nuwambaye cyangwa abandi; Hagati ya filteri yo hagati isanzwe ikozwe muri polypropilene yashonga ihuha idoda idoze ikozwe mumashanyarazi, ishobora gushungura bagiteri kandi ikagira uruhare rukomeye muguhagarika no kuyungurura.

Imashini itanga maskike yimikorere itezimbere cyane umusaruro wa masike. Imizingo minini ya polypropilene idoda idoda ikata mo uduce duto hanyuma igashyirwa kumurongo wo gukora mask. Imashini ishyiraho inguni nto kandi igenda igabanuka buhoro buhoro ikabakusanya kuva ibumoso ugana iburyo. Ubuso bwa mask bukanda neza hamwe na tablet, kandi inzira nko gukata, gufunga impande, no gukanda birakorwa. Mubikorwa byimashini zikoresha, bisaba impuzandengo yamasegonda 0.5 gusa kugirango umurongo uteranya uruganda utange mask. Nyuma yo kubyara, masike yandujwe na okiside ya Ethylene hanyuma igasigara ihagaze iminsi 7 mbere yo gufungwa, gupakira, guterana, no koherezwa kugurisha.

Ibikoresho byingenzi bya masike - fibre polypropilene

Akayunguruzo (M layer) hagati ya maska ​​yubuvuzi nigitambaro cyashongeshejwe cyayunguruzo, nicyo kintu cyingenzi cyingenzi, kandi ibikoresho nyamukuru ni polypropilene yashonze ibintu bidasanzwe. Ibi bikoresho bifite ibiranga ultra-high flow, ihindagurika rito, hamwe no kugabanya uburemere bwa molekile. Iyungurura ryakozwe rifite akayunguruzo gakomeye, gukingira, kubika, hamwe no kwinjiza amavuta, bishobora kuba byujuje ubuziranenge butandukanye bwumubare wa fibre kuri buri gice hamwe nubuso bwubuso bwibanze bwa masike yubuvuzi. Toni imwe ya fibre polypropilene fibre irashobora kubyara hafi 250000 polypropilene N95 ya masike yo gukingira imiti, cyangwa 900000 kugeza kuri miriyoni imwe yo kubaga.

Imiterere ya polypropilene yashonga ibintu byungurujwe bigizwe na fibre nyinshi zambukiranya fibre zegeranye zidahwitse, hamwe na diameter ya fibre ya metero 1.5 ~ 3 μ m, hafi 1/30 cya diameter yumusatsi wumuntu. Uburyo bwo kuyungurura ibikoresho bya polypropilene byashongeshejwe muyungurura ibikoresho birimo ibintu bibiri: inzitizi ya mashini na adsorption ya electrostatike. Bitewe na fibre ultrafine, ubuso bunini bwihariye, ubuso bunini, hamwe nubunini buringaniye bwa pore, polypropilene yashonze ibikoresho byungururwa bifite inzitizi nziza ya bagiteri n'ingaruka zo kuyungurura. Polypropilene yashonga ibintu byungururwa bifite imikorere ya electrostatike adsorption nyuma yo kuvura amashanyarazi.

Ingano ya coronavirus nshyashya ni nto cyane, hafi 100 nm (0.1 μ m), ariko virusi ntishobora kubaho yigenga. Bibaho cyane cyane mumasohoro no gutonyanga mugihe unyeganyega, kandi ubunini bwibitonyanga bingana na 5 μ m. Iyo virusi irimo ibitonyanga yegereye umwenda ushonga, bizajya byandikwa kuri electrostatike hejuru yubutaka, bibarinde kwinjira mubice byimbitse kandi bigere ku ngaruka. Bitewe nuko virusi igoye cyane kwitandukanya nisuku nyuma yo gufatwa na fibre ultrafine electrostatic fibre, kandi gukaraba nabyo bishobora kwangiza ubushobozi bwo guswera electrostatike, ubu bwoko bwa mask bushobora gukoreshwa rimwe gusa.

Gusobanukirwa Fibre ya Polypropilene

Fibre ya polypropilene, izwi kandi nka PP fibre, bakunze kwita polypropilene mu Bushinwa. Fibre ya polypropilene ni fibre ikozwe na polymerizing propylene nkibikoresho fatizo kugirango ihindure polypropilene, hanyuma ikore ibintu byinshi. Ubwoko bwingenzi bwa polypropilene burimo polypropilene, fibre ngufi ya polypropilene, fibre polypropilene yacitsemo ibice, polypropilene yagutse ya filament (BCF), polipropilene yinganda zinganda, polypropilene idoda, imyenda ya polipropilene, nibindi.

Fibre ya polypropilene ikoreshwa cyane cyane mubitapi (base ya tapi na suede), ibitambaro byo gushushanya, imyenda yo mu nzu, imirongo itandukanye y'imigozi, inshundura zo kuroba, ibyuma bifata amavuta, kubaka ibikoresho byubaka, ibikoresho byo gupakira, hamwe n'ibitambara byo mu nganda nk'igitambaro cyo kuyungurura, imyenda yo mu mufuka, n'ibindi. Polypropilene ultrafine fibre irashobora gukoreshwa mugukora imyenda yo murwego rwohejuru; Ingofero ikozwe muri polypropilene hollow fibre yoroheje, ishyushye, kandi ifite elastique nziza.

Iterambere rya Fibre ya Polypropilene

Polypropilene fibre ni fibre itandukanye yatangije umusaruro winganda mu myaka ya za 1960. Mu 1957, Ubutaliyani Natta n'abandi. ubanza yateje imbere isotactic polypropylene kandi yageze kumusaruro winganda. Nyuma yaho gato, isosiyete ya Montecatini yarayikoresheje mu gukora fibre polypropilene. Mu 1958-1960, isosiyete yakoresheje polypropilene mu gukora fibre iyita Meraklon. Nyuma, umusaruro watangiriye no muri Amerika na Kanada. Nyuma ya 1964, polypropilene ya firime yacitsemo fibre yo guhuriza hamwe yakozwe hanyuma ikorwa mumyenda yimyenda hamwe nudodo twa tapi binyuze muri fibrillation yoroheje.
Mu myaka ya za 70, inzira yo kuzenguruka intera ngufi n'ibikoresho byateje imbere umusaruro wa fibre polypropilene. Muri icyo gihe, kwaguka kwama filament kwatangiye gukoreshwa mu nganda zitapi, kandi umusaruro wa fibre polypropilene wateye imbere byihuse. Nyuma ya 1980, iterambere rya polypropilene nubuhanga bushya bwo gukora fibre polypropilene, cyane cyane kuvumbura catalizike ya metallocene, byazamuye cyane ireme rya polipropilene. Bitewe no kunoza imiterere yacyo (isotropy igera kuri 99.5%), ubwiza bwimiterere ya fibre polypropilene bwarazamutse cyane.
Mu myaka ya za 1980 rwagati, polypropilene ultra-nziza fibre yasimbuye fibre zimwe zipamba kumyenda yimyenda hamwe nimyenda idoda. Kugeza ubu, ubushakashatsi no guteza imbere fibre polypropilene nayo irakora cyane mubihugu bitandukanye kwisi. Kwamamara no kunoza tekinoroji itandukanye yo gukora fibre yaguye cyane imirima ikoreshwa ya fibre polypropilene.

Imiterere ya fibre polypropilene

Polypropilene ni molekile nini ifite atome ya karubone nkumunyururu nyamukuru. Ukurikije gahunda itandukanijwe yitsinda ryayo rya methyl, hari ubwoko butatu bwuburyo butatu: ibyaduka, iso bisanzwe, na meta bisanzwe. Atome ya karubone kumurongo munini wa molekile ya polypropilene iri mu ndege imwe, kandi amatsinda yabo ya methyl arashobora gutondekanya muburyo butandukanye ahantu hamwe no munsi yindege nkuru.
Umusaruro wa fibre polypropilene ukoresha isotactic polypropylene hamwe na isotropy irenga 95%, ifite kristu nyinshi. Imiterere yacyo ni urunigi rusanzwe ruzenguruka hamwe nuburyo butatu. Urunigi nyamukuru rwa molekile rugizwe na karubone atom yagoretse iminyururu imwe, kandi amatsinda ya methyl kuruhande ari kuruhande rumwe rwindege nkuru. Uku korohereza ibintu ntabwo ari imiterere isanzwe yiminyururu kugiti cye, ariko kandi ifite urunigi rusanzwe rutondekanya muburyo bwerekezo bwurunigi. Crystallinity ya fibre primaire ni 33% ~ 40%. Nyuma yo kurambura, kristu yiyongera kuri 37% ~ 48%. Nyuma yo kuvura ubushyuhe, kristu ishobora kugera kuri 65% ~ 75%.

Fibre ya polypropilene ikorwa muburyo bwo kuzunguruka. Muri rusange, fibre iroroshye kandi igororotse mu cyerekezo kirekire, idafite imirongo, kandi ifite uruziga ruzengurutse. Zizunguruka kandi muri fibre idasanzwe hamwe na fibre yibumbiye hamwe.

Ibikorwa biranga fibre polypropilene

Imiterere

Ikintu kinini kiranga polypropilene nuburyo bworoshye, hamwe n'ubucucike bwa 0,91g / cm ³, bworoshye kuruta amazi na 60% gusa by'uburemere bw'ipamba. Nubwoko bworoheje bworoshye hagati ya fibre isanzwe, yoroheje 20% kurusha nylon, 30% yoroshye kuruta polyester, na 40% byoroshye kuruta fibre. Birakwiriye gukora imyenda ya siporo y'amazi.

Imiterere yumubiri

Polypropilene ifite imbaraga nyinshi hamwe no kuvunika kwa 20% -80%. Imbaraga zigabanuka hamwe no kwiyongera kwubushyuhe, na polypropilene ifite modulus yo hejuru. Ubushobozi bwayo bwo gukira busa na nylon 66 na polyester, kandi biruta acrylic. By'umwihariko, ubushobozi bwayo bwihuse bwo gukira ni bwinshi, bityo imyenda ya polypropilene nayo irwanya kwambara. Imyenda ya polypropilene ntabwo ikunda kubyimba, niyo mpamvu iramba, ingano yimyenda irahagaze neza, kandi ntabwo byoroshye guhinduka.

Kwinjiza ubuhehere no gukora irangi

Muri fibre synthique, polypropilene ifite iyinjizwa ry’amazi mabi cyane, hamwe nubushuhe bwa zeru bugaruka mubihe bisanzwe byikirere. Kubwibyo, imbaraga zayo zumye kandi zitose hamwe nimbaraga zavunitse zirasa hafi, kuburyo bikwiriye cyane cyane gukora inshundura zuburobyi, imigozi, igitambaro cyo kuyungurura, hamwe na gaze yangiza imiti. Polypropilene ikunda gukoreshwa n'amashanyarazi ahamye hamwe no gusya mugihe ikoreshwa, hamwe nigabanuka rito. Imyenda iroroshye gukaraba no gukama vuba, kandi irakomeye. Bitewe no kutagira ububobere buke no kwuzuza ibintu iyo byambarwa, polypropilene ikunze kuvangwa na fibre hamwe no kwinjiza cyane iyo ikoreshejwe imyenda yimyenda.
Polypropilene ifite imiterere ya macromolecular isanzwe hamwe na kristu yo hejuru, ariko ikabura amatsinda akora ashobora guhuza na molekile y'irangi, bigatuma irangi bigorana. Irangi risanzwe ntirishobora kurangi. Gukoresha amarangi yatatanye kugirango usige polypropilene birashobora gusa kuvamo amabara yoroheje cyane no kwihuta kwamabara. Kunoza imikorere yo gusiga amarangi ya polypropilene irashobora kugerwaho hakoreshejwe uburyo nka graft copolymerisation, amabara yumwimerere yumwimerere, hamwe no guhindura ibyuma.

Imiterere yimiti

Polypropilene ifite imbaraga zo kurwanya imiti, kwanduza udukoko, no kubumba. Ihungabana ryayo kurwanya aside, alkali, nibindi bikoresho byimiti iruta izindi fibre synthique. Polypropilene ifite imbaraga zo kurwanya ruswa, usibye aside nitricike yibanze hamwe na soda ya caustic. Ifite imbaraga zo kurwanya aside na alkali, bigatuma ikoreshwa nkibikoresho byo kuyungurura kandiibikoresho byo gupakira.Nyamara, ituze ryayo kumashanyarazi kama ni muke.

Kurwanya ubushyuhe

Polypropilene ni fibre ya termoplastique ifite aho yoroshya hepfo hamwe no gushonga kuruta izindi fibre. Ubushyuhe bwo kworoha ni 10-15 ℃ munsi ugereranije no gushonga, bikaviramo kurwanya ubushyuhe buke. Mugihe cyo gusiga irangi, kurangiza, no gukoresha polypropilene, ni ngombwa kwitondera kugenzura ubushyuhe kugirango wirinde guhindagurika. Iyo ashyutswe mubihe byumye (nkubushyuhe burenga 130 ℃), polypropilene izacika kubera okiside. Kubwibyo, anti-garing agent (ubushyuhe stabilisateur) yongerwaho kenshi mugukora fibre polypropilene kugirango iteze imbere fibre polypropilene. Ariko polypropilene ifite imbaraga zo kurwanya ubushuhe n'ubushyuhe. Guteka mumazi abira mumasaha menshi nta guhindura.

Ibindi bikorwa

Polypropilene ifite urumuri ruke n’ikirere, ikunda gusaza, ntishobora kurwanya ibyuma, kandi igomba kubikwa kure yumucyo nubushyuhe. Nyamara, umutungo urwanya gusaza urashobora kunozwa wongeyeho imiti igabanya ubukana mugihe cyo kuzunguruka. Byongeye kandi, polypropilene ifite amashanyarazi meza, ariko ikunda amashanyarazi ahamye mugihe cyo kuyatunganya. Polypropilene ntabwo yoroshye gutwika. Iyo fibre igabanutse igashonga mumuriro, urumuri rushobora kuzimya wenyine. Iyo itwitswe, ikora blokike ibonerana ifite impumuro ya asfalt.

Dongguan Liansheng Ntabwo Yubatswe Ikoranabuhanga Co, Ltd.yashinzwe muri Gicurasi 2020.Ni uruganda runini rutunganya imyenda rudahuza ubushakashatsi niterambere, umusaruro, no kugurisha. Irashobora gutanga amabara atandukanye ya PP spunbond idoda idoda hamwe n'ubugari bwa metero 3.2 kuva kuri garama 9 kugeza kuri garama 300.