Ukhathalelo lwezempilo oluluhlaza ngokwenene lukhokelo lophuhliso olubalulekileyo namhlanje, kunye nokuvela kwebiodegradable PLA (polylactic acid) spunbond amalaphu nonwovenibonelela ngamathuba amatsha okunciphisa uxinzelelo lokusingqongileyo olubangelwa yinkunkuma yonyango.
Usetyenziso lwezonyango lwelaphu le-PLAT le-spunbond
Ilaphu le-PLA le-spunbond libonise ukuba kunokwenzeka kwiinkalo ezininzi zeemveliso zonyango ngenxa yeempawu zayo:
Izixhobo ezikhuselayo: Ilaphu le-PLA le-spunbond lingasetyenziselwa ukwenza iingubo zotyando, i-drapes yotyando, iingxowa zokubulala iintsholongwane, njl njl. Uphando luphuhlise i-PLA esekelwe kwi-SMS (i-spunbond meltblown spunbond) izinto zokwakha, ezinokuthi zisetyenziswe kwizixhobo zokukhusela zonyango ezifuna ukusebenza kakuhle kokucoca.
Iimveliso ze-Antibacterial: Ngokongeza i-inorganic antibacterial agents ezifana ne-nano zinc oxide (ZnO) kwi-PLA, amalaphu angengawo alukiweyo aneempawu ze-antibacterial ezihlala ixesha elide kwaye ezikhuselekileyo zinokulungiswa. Ngokomzekelo, xa umxholo we-ZnO u-1.5%, izinga lokulwa ne-antibacterial ngokumelene ne-Escherichia coli kunye ne-Staphylococcus aureus linokufikelela kwi-98%. Olu hlobo lwemveliso lunokusetyenziswa kwiimeko ezineemfuno eziphezulu ze-antibacterial, ezifana neengubo zonyango, iibhedi ezilahlayo, njl.
Ukupakishwa kwezonyango kunye neentambo zezixhobo: Ilaphu le-PLA elingalukwanga lingasetyenziselwa ukupakisha iingxowa zezixhobo zonyango. Ukuphefumla kwayo okulungileyo kuvumela iigesi zokuvala inzalo ezifana ne-ethylene oxide ukuba zingene, ngelixa zithintela ngokufanelekileyo ii-microorganisms. I-PLA nanofiber membrane ingasetyenziselwa izixhobo zokucoca eziphezulu.
Iinzuzo kunye nemingeni yendalo esingqongileyo
Izibonelelo ezibalulekileyo zokusingqongileyo: Ukusetyenziswa kwelaphu le-PLA spunbond kunceda ukunciphisa ukusetyenziswa kwemithombo yepetroleum ngeemveliso zonyango ezilahlayo. Emva kokulahlwa, inokuthi ihlaziywe ngokupheleleyo phantsi kweemeko zomgquba, ithathe inxaxheba kujikelezo lwendalo, kwaye incede ukunciphisa ukugcinwa kwendalo kunye "nongcoliseko olumhlophe" lwenkunkuma yonyango.
Imingeni ejongene nayo: Ukukhuthazwa kwelaphu le-PLA le-spunbond kwicandelo lezonyango kusajongene nemingeni ethile. Ngokomzekelo, izinto ezicocekileyo ze-PLA zineengxaki ezifana ne-hydrophobicity eyomeleleyo, ukuthungwa kwe-brittle, kwaye kufuneka kuphuculwe ukumelana nobushushu. Nangona kunjalo, le miba ilungiswa ngokuthe ngcembe ngokuguqulwa kwezinto kunye nokuphucula inkqubo. Ngokulungiselela i-PLA copolymer fibers, ukufunxa kwabo ukufuma kunye nokumelana nobushushu kunokuphuculwa. Ukudibanisa i-PLA kunye nezinye ii-biopolymers ezifana ne-PHBV kuye kwangqinwa ukuba yindlela esebenzayo yokuphucula iimpawu zayo zoomatshini kunye nokuqhubekeka.
Umkhombandlela wophuhliso lwexesha elizayo
Uphuhliso lwexesha elizayo lwelaphu le-PLA spunbond kwicandelo lezonyango lunokuba nezi ndlela zilandelayo:
Ukuguqulwa kwezinto eziphathekayo kuyaqhubeka nokuba nzulu: Kwixesha elizayo, uphando luya kuqhubeka nokwandisa iipropati ze-PLA spunbond ngelaphu ngokusebenzisa i-copolymerization, ukudibanisa, kunye nokongeza izongezelelo (ezifana nokusebenzisa i-chain extenders kunye ne-antioxidants ukuphucula ukusetyenzwa kwe-PLA), njengokuphucula ukuguquguquka kwayo, ukuphefumla, kunye nokunyuka kokufuma, ukuhlangabezana neemfuno eziphezulu zezicelo zonyango.
Intsebenziswano kushishino kunye nokukhuthazwa kobuchwepheshe: Uphuhliso olongezelelweyo lweIlaphu le-PLA le-spunbondithembele ekudityanisweni ngokusondeleyo koshishino, izifundiswa, kunye nophando ukukhuthaza impumelelo kwiitekhnoloji eziphambili kunye nokwandiswa kwesikali soshishino. Oku kubandakanya ukunyusa ukunyibilika kwe-spinnability ye-PLA copolyesters kunye nokuphuhlisa iteknoloji yemveliso eqhubekayo ye-PLA esekelwe kwi-SMS izakhiwo.
I-double drive yenkxaso yomgaqo-nkqubo kunye nemfuno yeemarike: Ngokukhululwa "kwezicwangciso zokuvinjelwa kweplastiki" e-Hainan nakweminye imimandla, kunye nokugxininiswa kwehlabathi jikelele kuphuhliso oluzinzileyo kunye noqoqosho olujikelezayo, imigaqo-nkqubo echaphazelekayo yokusingqongileyo iya kuqhubeka nokudala indawo yemarike ebanzi yezinto ezinokuchithwa kwezinto eziphilayo.
Isishwankathelo
Ilaphu le-spunbond elinokonakala le-PLA, kunye neenzuzo zalo zokukhuselwa kokusingqongileyo okuluhlaza, izinto ezivuselelwayo, ukubola kwezinto eziphilayo, kunye namandla okusebenza, inika ukhetho olutsha kwishishini lezonyango ukunciphisa umthwalo wokusingqongileyo kwaye kulindeleke ukuba lingenise ixesha lokhuseleko lokusingqongileyo kwiimveliso ezilahlwayo zonyango.
Nangona ukuphuculwa okuqhubekayo kusafuneka ekusebenzeni kwezinto kunye nokulawulwa kweendleko, kunye nokuqhubela phambili kwetheknoloji, ukukhula koshishino, kunye nokukhuthazwa kwemigaqo-nkqubo yokusingqongileyo, amathuba okusetyenziswa kwelaphu le-PLA spunbond kwintsimi yezonyango athembisa kakhulu.
Ndiyathemba ukuba olu lwazi lungentla lunokukunceda uqonde ngcono ilaphu le-PLA le-spunbond. Ukuba unomdla ongakumbi kwiintlobo ezithile zeemveliso zonyango ze-PLA, ezifana nempahla yokukhusela ephezulu okanye i-antibacterial dressing ethile, sinokuqhubeka nokuhlola.
Dongguan Liansheng Non woven Technology Co., Ltd.yasekwa ngoMeyi 2020. Lishishini elikhulu lemveliso yelaphu elingalukiweyo elidibanisa uphando nophuhliso, imveliso, kunye neentengiso. Inokuvelisa imibala eyahlukeneyo ye-PP spunbond amalaphu angalukwanga anobubanzi obungaphantsi kwe-3.2 yeemitha ukusuka kwi-9 grams ukuya kwi-300 grams.
Ixesha lokuposa: Nov-17-2025