Isesengura ryibintu byingenzi bigira ingaruka kumiterere yumubiri wimyenda idoda

Mubikorwa byo gukora imyenda ya spunbond idoda, ibintu bitandukanye bishobora kugira ingaruka kumiterere yibicuruzwa. Gusesengura isano iri hagati yibi bintu nibikorwa byibicuruzwa birashobora gufasha kugenzura neza imikorere yimikorere no kubona ubuziranenge kandi bukoreshwa cyane na polypropilene spunbond idoda idoda. Hano, tuzasesengura muri make ibintu byingenzi bigira ingaruka kumiterere yumubiri wimyenda idoda kandi tubisangire nabantu bose.

Gushonga indangagaciro hamwe no gukwirakwiza uburemere bwa polipropilene

Ibipimo byingenzi byerekana ibipimo bya polypropilene ni uburemere bwa molekile, gukwirakwiza uburemere bwa molekile, isotropy, indangagaciro zashonga, nibirimo ivu. Uburemere bwa molekuline ya chip ya PP ikoreshwa mukuzunguruka iri hagati ya 100000 na 250000, ariko imyitozo yerekanye ko imiterere ya rheologiya yo gushonga ari nziza mugihe uburemere bwa molekile ya polypropilene bugera ku 120000, kandi umuvuduko mwinshi wemewe wo kuzunguruka nawo uri hejuru. Icyerekezo cyo gushonga nikintu kigaragaza imiterere ya rheologiya yo gushonga, kandi indangagaciro yo gushonga ya polypropilene ikata muri spunbond mubusanzwe iri hagati ya 10 na 50. Mu gihe cyo kuzunguruka mu rubuga, filime yakira gusa umushinga umwe wo gutembera mu kirere, kandi igipimo cy’imiterere ya filime kigarukira ku miterere ya rheologiya yo gushonga. Ninini yuburemere bwa molekile, ni ukuvuga, indangantego yo gushonga, niko bigenda byoroha, kandi nigipimo gito cyagereranijwe na filament. Mubihe bimwe byo gusohora gushonga kuva nozzle, ingano ya fibre ya filament yabonetse nayo nini, bikavamo ukuboko gukomeye kumva imyenda idoda. Niba igipimo cyo gushonga kiri hejuru, ubwiza bwikigereranyo bugabanuka, imiterere ya rheologiya nibyiza, kurwanya kurambura bigabanuka, kandi mugihe kimwe cyo kurambura, igipimo cyo kurambura kiriyongera. Mugihe icyerekezo cyerekezo cya macromolecules cyiyongera, imbaraga zo kuvunika imyenda ya spunbond idoda idoda nayo iziyongera, kandi ubwiza bwa filaments buzagabanuka, bivamo ukuboko kworoshye kumva umwenda. Muburyo bumwe, urwego rwo hejuru rwo gushonga rwa polypropilene, niko ubwiza bwarwo ninshi nimbaraga zavunika.

Ikwirakwizwa ryibiro bya molekuline akenshi bipimirwa ku kigereranyo cy’uburemere buringaniye bwa molekile (Mw) n'umubare ugereranije uburemere bwa molekile (Mn) ya polymer (Mw / Mn), izwi nk'agaciro ko gukwirakwiza uburemere bwa molekile. Gutoya kugabanya uburemere bwa molekuline, niko bigenda bihindagurika imiterere ya rheologiya yo gushonga, hamwe nuburyo bukomeye bwo kuzunguruka, bifasha kuzamura umuvuduko. Ifite kandi elastique yo hasi ya elastique hamwe nubukonje bukabije, bishobora kugabanya imihangayiko yo kuzunguruka, bigatuma PP yoroshye kurambura no kuba nziza, kandi ikabona fibre nziza. Byongeye kandi, uburinganire bwurusobe nibyiza, hamwe nintoki nziza wumva kandi uburinganire.

Ubushyuhe

Igenamiterere ry'ubushyuhe buzenguruka biterwa no gushonga kw'ibikoresho fatizo n'ibisabwa ku miterere y'ibicuruzwa. Iyo urwego rwo hejuru rwo gushonga rwibikoresho fatizo, nubushyuhe bwo kuzunguruka, naho ubundi. Ubushyuhe bwo kuzunguruka bufitanye isano itaziguye nubwiza bwashonga, kandi ubushyuhe buri hasi. Ubukonje bwashonga ni bwinshi, bigatuma kuzunguruka bigoye kandi bikunda kubyara fibre yamenetse, ikomeye cyangwa yoroheje, bigira ingaruka kumiterere yibicuruzwa. Kubwibyo, kugirango ugabanye ubukonje bwashonga no kunoza imiterere ya rheologiya, uburyo bwo kongera ubushyuhe burakoreshwa muri rusange. Ubushyuhe bwo kuzunguruka bugira ingaruka zikomeye kumiterere n'imiterere ya fibre. Hasi yubushyuhe bwo kuzunguruka, niko hejuru yo kurambura kwijimye kwishonga, niko bigenda birwanya kurambura, kandi biragoye kurambura filament. Kugirango ubone fibre yuburyo bumwe, umuvuduko wumuyaga urambuye ugomba kuba mwinshi mubushyuhe buke. Kubwibyo, mubihe bimwe byimikorere, mugihe ubushyuhe buzunguruka buri hasi, fibre iragoye kurambura. Fibre ifite ubwiza buhanitse hamwe nicyerekezo gito cya molekulari, bigaragarira mubitambaro bitarimo imyenda idafite imbaraga zo kumeneka, kurambura cyane kuruhuka, no kumva ukuboko gukomeye; Iyo ubushyuhe bwo kuzunguruka buri hejuru, kurambura fibre nibyiza, ubwiza bwa fibre iba nto, kandi icyerekezo cya molekile kiri hejuru. Ibi bigaragarira mu mbaraga nyinshi zo kumeneka, kurambura ntoya, no kuboko kworoshye kumva imyenda idoda. Ariko, birakwiye ko tumenya ko mugihe runaka cyo gukonjesha, niba ubushyuhe bwo kuzunguruka buri hejuru cyane, filament yavuyemo ntizakonja bihagije mugihe gito, kandi fibre zimwe zishobora gucika mugihe cyo kurambura, zishobora gukora inenge. Mubikorwa nyabyo, ubushyuhe buzunguruka bugomba gutoranywa hagati ya 220-230 ℃.

Imiterere ikonje

Igipimo cyo gukonjesha cya filament gifite ingaruka zikomeye kumiterere yumubiri wimyenda idoda mugihe cyo gukora. Niba polypropilene yashongeshejwe irashobora gukonjeshwa byihuse kandi kimwe nyuma yo kuva muri spinneret, igipimo cyacyo cyo gutinda kiratinda kandi kristu ikaba mike. Imiterere ya fibre yavuyemo ni disiki idahwitse ya disiki ya sisitemu ya kirisiti, ishobora kugera ku kigero kinini cyo kurambura mugihe cyo kurambura. Icyerekezo cy'iminyururu ya molekile ni cyiza, gishobora kurushaho kongera kristu, kongerera imbaraga fibre, no kugabanya kuramba. Ibi bigaragarira mu mwenda udoda ubudodo ufite imbaraga zo kuvunika cyane no kurambura hasi; Niba ikonje buhoro, fibre yavuyemo ifite imiterere ihamye ya kristu ya monoclinike, idafasha kurambura fibre. Ibi bigaragarira mu mwenda udoda udoda hamwe nimbaraga zo kuvunika hasi no kuramba cyane. Kubwibyo, muburyo bwo kubumba, kongera umuvuduko ukonje wumwuka no kugabanya ubushyuhe bwicyumba kizunguruka bikoreshwa mugutezimbere imbaraga zavunitse no kugabanya kurambura imyenda idoda. Mubyongeyeho, intera ikonje ya filament ifitanye isano cyane nimikorere yayo. Mugukora imyenda ya spunbond idoda, intera ikonje muri rusange yatoranijwe hagati ya 50-60cm.

Igishushanyo

Icyerekezo cy'iminyururu ya molekile mumurongo wa silike nikintu cyingenzi kigira ingaruka kumbaraga zingana no kurambura kumena filaments imwe. Ninshi urwego rwicyerekezo, niko imbaraga za filament imwe nini nini yo kurambura kuruhuka. Urwego rwerekezo rushobora kugaragazwa na birefringence ya filament, kandi nini agaciro, niko urwego rwerekezo. Fibre yibanze ikozwe mugihe polypropilene yashonga ivuye muri spinneret ifite ubukonje buke hamwe nicyerekezo, ubwinshi bwa fibre, kuvunika byoroshye, no kurambura gukomeye kuruhuka. Guhindura imiterere ya fibre, igomba kuramburwa kuburyo butandukanye nkuko bikenewe mbere yo gukora urubuga. Muriumusaruro wa spunbond, imbaraga za fibre zingana ahanini biterwa nubunini bwikirere gikonje nubunini bwumwuka. Nini nini yo gukonjesha no gukurura umwuka, niko kwihuta kurambura, hamwe na fibre bizaramburwa byuzuye. Icyerekezo cya molekile kiziyongera, ubwiza buzabe bwiza, imbaraga ziziyongera, kandi kurambura kuruhuka bizagabanuka. Ku muvuduko wo kuzunguruka wa 4000m / min, polypropilene filament igera ku gaciro kayo ka birefringence, ariko muburyo bwo gutembera kwikirere cyo kuzunguruka kurubuga, umuvuduko nyawo wa filament muri rusange biragoye kurenga 3000m / min. Rero, mubihe aho ibyifuzo bikomeye biri hejuru, kurambura umuvuduko birashobora kwiyongera ushize amanga. Nyamara, ukurikije imiterere yumuyaga uhoraho ukonje, niba ingano yumwuka mwinshi ari nini cyane kandi gukonjesha kwa filament ntibihagije, fibre ikunda kumeneka aho bapfiriye, bigatera kwangirika kumutwe watewe inshinge kandi bikagira ingaruka kumusaruro nubwiza bwibicuruzwa. Kubwibyo, hagomba gukorwa ubugororangingo bukwiye mubikorwa nyabyo.

Imiterere yumubiri yimyenda idahwitse ntabwo ijyanye gusa nimiterere ya fibre, ariko kandi nuburyo bwimiterere ya fibre. Nibyiza bya fibre, niko urwego rwimivurungano mugutondekanya fibre mugihe ushyizeho urushundura, uko urushundura rumeze kimwe, niko fibre nyinshi iba kuri buri gace kamwe, ntoya igereranya imbaraga za longitudinal na transvers zingaruka za net, kandi niko imbaraga zimena. Birashoboka rero kunoza uburinganire bwibicuruzwa bitarimo imyenda ya spunbond no kubongerera imbaraga zo kumena mukongera ubwinshi bwumwuka. Ariko, niba ingano yumwuka mwinshi ari nini cyane, biroroshye gutera insinga, kandi kurambura birakomeye. Icyerekezo cya polymer gikunda kuba cyuzuye, kandi kristu ya polymer ni ndende cyane, bizagabanya imbaraga zingaruka no kuramba mugihe cyo kuruhuka, kongera ubukana, bityo bigatuma kugabanuka kwimbaraga no kurambura imyenda idoda. Dufatiye kuri ibi, birashobora kugaragara ko imbaraga no kurambura imyenda ya spunbond idafite imyenda yiyongera kandi igabanuka buri gihe hamwe no kwiyongera kwumwuka wumwuka. Mu musaruro nyirizina, birakenewe guhindura inzira uko bikwiye ukurikije ibikenewe hamwe nuburyo nyabwo kugirango tubone ibicuruzwa byiza.

Ubushuhe bushushe

Urubuga rwa fibre rwakozwe no kurambura fibre rumeze nabi kandi rugomba kuba ruzungurutse kandi rugahuzwa kugirango ruhinduke umwenda. Guhuza bishyushye ni inzira aho fibre zo mururubuga zoroha igice kandi zigashongeshwa nizunguruka zishyushye hamwe nigitutu nubushyuhe runaka, kandi fibre ihujwe hamwe kugirango ikore umwenda. Urufunguzo ni ukugenzura ubushyuhe nigitutu neza. Igikorwa cyo gushyushya ni koroshya no gushonga fibre. Ikigereranyo cya fibre yoroshye kandi yashonze igena imiterere yumubiri yaimyenda idoda. Ku bushyuhe buke cyane, igice gito gusa cya fibre ifite uburemere buke bwa molekile yoroshye kandi igashonga, kandi hariho fibre nkeya cyane ihujwe hamwe nigitutu. Fibre iri murubuga rwa fibre ikunda kunyerera, kandi imyenda idoda idoda ifite imbaraga zo kumeneka ariko kuramba cyane. Igicuruzwa cyumva cyoroshye ariko gikunda guhindagurika; Mugihe ubushyuhe buzunguruka buzamuka buhoro buhoro, ubwinshi bwa fibre yoroshye kandi yashonga byiyongera, fibre web fibre irakomera, fibre ntishobora kunyerera, imbaraga zo kuvunika kumyenda idoda, iriyongera, kandi kurambura biracyari binini. Byongeye kandi, kubera isano ikomeye hagati ya fibre, kurambura byiyongera gato; Iyo ubushyuhe buzamutse cyane, fibre nyinshi kumwanya wumuvuduko ushonga, hanyuma fibre ihinduka ibibyimba, bigatangira gucika. Muri iki gihe, imbaraga zimyenda idoda itangira kugabanuka, kandi kurambura nabyo bigabanuka cyane. Ukuboko kwumva gukomeye cyane kandi kuvunika, kandi imbaraga zo kurira nazo ni nke. Mubyongeyeho, ibicuruzwa bitandukanye bifite uburemere nubunini butandukanye, kandi ubushyuhe bwubushyuhe bwuruganda rushyushye nabwo buratandukanye. Kubicuruzwa bito, hari fibre nkeya kumurongo ushyushye, kandi ubushyuhe buke burasabwa kugirango woroshye kandi ushonga, bityo ubushyuhe bukenewe bushyushye buri hasi. Mu buryo buhuye, kubicuruzwa binini, ubushyuhe bushyushye busabwa ni hejuru.

Umuvuduko ushushe

Muburyo bwo guhuza ibishyushye bishyushye, uruhare rwumuvuduko ushushe wumurongo wumurongo ni uguhuza fibre ya fibre, bigatuma fibre yo mururubuga ihura nubushyuhe bwo guhindura ibintu kandi ikagira ingaruka zuzuye zo gutwara ubushyuhe mugihe cyo kuzunguruka gishyushye, bigatuma fibre yoroshye kandi yashonze ihuza cyane, byongera imbaraga zifatika hagati ya fibre, kandi bikagora fibre kunyerera. Iyo umuvuduko ushushe wumurongo ugereranije ni muke, ubwinshi bwimikorere ya fibre kumwanya wumuvuduko wurubuga rwa fibre iba ikennye, imbaraga zo guhuza fibre ntabwo ziri hejuru, imbaraga zifata hagati ya fibre ni mbi, kandi fibre iroroshye kunyerera. Muri iki gihe, ikiganza cyunva imyenda ya spunbond idoda idoze iroroshye, kurambura kuvunika ni binini, kandi imbaraga zavunitse ni nke; Ibinyuranye na byo, iyo umuvuduko wumurongo uri hejuru cyane, imyenda ya spunbond idoda idoda ifite ukuboko gukomeye kumva, kurambura hasi kuruhuka, ariko imbaraga nyinshi zo kumena. Ariko, mugihe umuvuduko wumurongo wuruganda rushyushye ruri hejuru cyane, polymer yoroshye kandi ushonga polymer ahantu hashyushye kumurongo wa fibre biragoye gutemba no gukwirakwira, ibyo bikaba binagabanya ubukana bwimvune yimyenda idoda. Mubyongeyeho, gushiraho umurongo wumurongo nabyo bifitanye isano ya hafi nuburemere nubunini bwimyenda idoda. Mu musaruro, guhitamo bikwiye bigomba gukorwa ukurikije ibikenewe kugirango habeho ibicuruzwa byujuje ibisabwa.

Muncamake, imiterere nubukanishi bwapolypropilene spunbond idodaibicuruzwa ntabwo bigenwa nimpamvu imwe, ahubwo ningaruka ziterwa nibintu bitandukanye. Mu musaruro nyirizina, ibipimo bifatika bigomba gutoranywa ukurikije ibikenewe hamwe nuburyo bwo kubyaza umusaruro kugirango ubyare umusaruro mwiza wo mu bwoko bwa spunbond udoda imyenda ushobora kuboha ibikenewe bitandukanye. Byongeye kandi, imiyoborere ihamye yumurongo wibyakozwe, gufata neza ibikoresho, no kuzamura ireme nubumenyi bwabakora nabyo nibintu byingenzi mukuzamura ireme ryibicuruzwa.

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.