Inkqubo yelaphu elingalukiweyo elivuthelweyo kunye neempawu

Inkqubo yokunyibilika kwelaphu elingalukwanga elivuthelweyo

Inkqubo yokunyibilika kwelaphu elingalukiweyo elivuthelweyo: ukondla kwepolymer - ukunyibilika kwe-extrusion - ukwakheka kwefayibha - ukupholisa ifayibha - ukwakhiwa kwewebhu - ukomelezwa kwilaphu.

Itekhnoloji enamacandelo amabini anyibilikayo

Ukusukela ekuqaleni kwenkulungwane yama-21, uphuhliso lweteknoloji ye-melt blown nonwoven yenze inkqubela ekhawulezileyo kumazwe ngamazwe.

Iinkampani ze-Hills kunye ne-Nordson e-United States ziye zaphuhlisa ngempumelelo itekhnoloji enamacandelo amabini anyibilikayo ngaphambili, kubandakanya umbindi wesikhumba, i-parallel, i-triangular kunye nezinye iintlobo. Ukucoleka kwefibre kuqhele ukuba kufutshane ne-2 µ, kwaye inani lemingxuma kwinxalenye yefilament evuthelweyo enyibilikayo inokufikelela kwimingxuma eli-100 nge-intshi nganye, ngereyithi yokukhupha eyi-0.5g/min umngxuma ngamnye.

Uhlobo olungundoqo lwesikhumba:

Inokwenza amalaphu angalukwanga azive ethambile kwaye anokwenziwa abe yimveliso egxile kakhulu, i-eccentric, kunye neemveliso ezingaqhelekanga. Ngokuqhelekileyo, izinto ezingabizi zisetyenziswa njengeyona nto ingundoqo, ngelixa iipolymers ezibizayo ezineempawu ezikhethekileyo okanye ezifunekayo zisetyenziswa njengoluhlu lwangaphandle, njenge-polypropylene ye-core kunye ne-nylon ye-layer yangaphandle, eyenza i-fibers hygroscopic; Ingundoqo yenziwe nge-polypropylene, kwaye umaleko wangaphandle wenziwa nge-polyethylene ephantsi yokunyibilika okanye i-polypropylene eguqulweyo, i-polyester eguquliweyo, njl. Kwimicu ye-carbon black conductive, i-core conductive isongelwe ngaphakathi.

Uhlobo olunxuseneyo:

Inokwenza amalaphu angalukwanga abe ne-elasticity entle, edla ngokwenziwa ngeepholima ezimbini ezahlukeneyo okanye ipholima enye ene-viscosity eyahlukeneyo ukwenza imicu edityanisiweyo enamacandelo amabini. Ngokusebenzisa iipropathi ezahlukeneyo zokuncipha kwe-thermal yeepolymers ezahlukeneyo, iifiber ezigobileyo zinokwenziwa. Umzekelo, i-3M Inkampani iphuhlise ilaphu elingalukwanga elenziwe nge-PET/PP evuthelwe yi-PET/PP imicu enamacandelo amabini, ethi, ngenxa yokuncipha okwahlukileyo, yenze i-spiral curl kwaye inike ilaphu elingalukwanga ukunwebeka okugqwesileyo.

Uhlobo lwetheminali:

Olu lolunye uhlobo lwe-polymer composite esetyenziswa kwiintlobo ezintathu zamagqabi, umnqamlezo, kunye ne-terminal. Xa usenza i-anti-static, i-moya conductive, kunye ne-conductive fibers, ii-polymers eziqhubayo zinokuthi zibe yinto edibeneyo phezulu, engakwazi ukuqhuba umswakama kuphela, kodwa iphinde iqhube umbane, i-anti-static, kwaye igcine inani le-polymer conductive esetyenziswayo.

Uhlobo lwe-Micro Dan:

Ipetali e-orenji emile okwe-orenji, icwecwe elimile okwe-strip, okanye izinto ezimilise okwesiqithi zingasetyenziswa. Ukusebenzisa iipolima ezimbini ezingahambelaniyo ukuxobula kunye nokwenza iiwebhu zefiber ze-ultrafine, kunye ne-nanofiber webs. Umzekelo, uKimberly Clark uphuhlise uhlobo lwe-peeling i-fiber enamacandelo amabini, esebenzisa iimpawu ze-fiber zamacandelo amabini ezenziwe kwiipolymers ezimbini ezingahambelaniyo ezinokucolwa ngokupheleleyo ngaphantsi kwesibini emanzini ashushu ukwenza i-ultrafine fiber webs. Kuhlobo lwesiqithi, ulwandle kufuneka lunyibilike ukuze kufumaneke uthungelwano lwefiber yesiqithi esihle.

Uhlobo lweHybrid:

Lucwecwe lwefiber olwenziwa ngokuxuba izinto ezahlukeneyo, imibala, iintsinga, iimilo ezinqamlezileyo, kunye neentsinga ezinxusene nombindi wesikhumba, zinemicu yomibini ephothiweyo kunye nenxalenye emibini, ukunika imicu iimpawu ezifunekayo. Xa kuthelekiswa neemveliso zefayibha ezinyibilikayo ezinyibilikayo, olu hlobo lwelaphu lokunyibilika luvuthelwe ngamacandelo amabini ifayibha engalukwanga okanye ilaphu elixubeneyo lefiber nonwoven lingaphucula ngakumbi ukusebenza kohluzo lwesixhobo sokucoca, kwaye lenze isihluzo esiphakathi sibe ne-anti-static, conductive, ukufuma okufunxayo, kunye neempawu zomqobo eziphuculweyo; Okanye uphucule ukuncamathela, ukuphaphatheka, kunye nokuphefumla kwewebhu yefiber.

Amacandelo amabini e-meltblown fibers anokongeza iintsilelo zeepropathi zepolymer enye. Ngokomzekelo, i-polypropylene ayibizi kakhulu, kodwa xa isetyenziswe kwizixhobo zonyango kunye nempilo, ayixhathisi kwi-radiation exposure. Ke ngoko, i-polypropylene inokusetyenziswa njengondoqo, kwaye i-polymer efanelekileyo enganyangekiyo kwimitha inokukhethwa kumaleko angaphandle ukuze ayijikeleze, ngaloo ndlela isombulula ingxaki yokumelana nemitha. Oku kunokwenza imveliso ibe yindleko ngelixa ihlangabezana neemfuno ezisebenzayo, ezifana nokushisa kunye nomswakama osetyenziswayo kwinkqubo yokuphefumula kwintsimi yezonyango, enokubonelela ngokufanelekileyo ukushisa kwemvelo kunye nomswakama. Ikhaphukhaphu, iyalahlwa okanye kulula ukuyibulala iintsholongwane, ayibizi, kwaye ingasebenza njengesihluzo esongezelelweyo sokususa izinto ezingcolisayo. Inokudityaniswa ngezinto ezimbini ezidityanisiweyo zefiber webs ezinyibilikayo. Ukwamkela i-skin core uhlobo lwe-fiber yamacandelo amabini, i-core yenziwe nge-polypropylene kunye ne-skin layer yenziwe nge-nylon. Iintsinga ezimbini zamacandelo zinokuphinda zithathe iindawo ezinqamlezileyo ezingaqhelekanga, ezinjengee-trilobites kunye ne-multilobes, ukwandisa indawo yazo. Kwangaxeshanye, iipolymers ezinokuphucula ukusebenza kokucoca zingasetyenziswa kumphezulu wazo okanye kwincam yeblade. Umnatha we-fiber enamacandelo amabini we-olefin okanye indlela yokunyibilika ye-polyester evuthelweyo inokwenziwa ibe yicylindrical liquid kunye nezihluzo zegesi. Umnatha wefayibha ovuthelweyo unamacandelo amabini angasetyenziselwa iingcebiso zokucoca umdiza; Ukusebenzisa isiphumo sokufunxa esingundoqo ukwenza ii-inki ezifunxayo ezikumgangatho ophezulu; Iirodi zokufunxa ezingundoqo zokugcina ulwelo kunye nokufakwa.

Uphuhliso lwetekhnoloji ye-melt blown nonwoven - inyibilika i-nanofibers evuthelweyo

Ngaphambili, uphuhliso lweentsinga ezinyibilikayo zazisekwe kubuchwephesha obunamalungelo awodwa omenzi wechiza we-Exxon, kodwa kwiminyaka yakutshanje, iinkampani ezininzi zamazwe ngamazwe ziye zaqhawuka kubuchwephesha be-Exxon ukuphuhlisa imicu ye-nanoscale ecolekileyo.

Inkampani yase-Hills yenze uphando olubanzi kwi-nano meltblown fibers kwaye kuthiwa ifikelele kwisigaba soshishino. Ezinye iinkampani ezifana ne-Non woven Technologies (NTI) nazo ziphuhlise iinkqubo kunye nobuchwepheshe bokuvelisa i-nano meltblown fibers kwaye zifumene amalungelo awodwa omenzi wechiza.

Ukuze kujikelezwe iinanofibers, imingxunya yombhobho icoleke kakhulu kunaleyo ikwisixhobo esivuthelweyo esiqhelekileyo. I-NTI ingasebenzisa imilomo emincinci njenge-0.0635 millimeters (i-63.5 microns) okanye i-intshi ye-0.0025, kunye nesakhiwo semodyuli se-spinneret sinokudibaniswa ukwenza ububanzi obupheleleyo obungaphezu kweemitha ezi-3. Ubukhulu bemisonto enyibilikayo ephothiweyo ngolu hlobo bumalunga neenanometer ezingama-500. Olona dayametha lwefiber enye luthinne lunokufikelela kwi-nanometers ezingama-200.

Izixhobo ezinyibilikayo zokusonta iinanofibers zinemingxuma emincinci yokutshiza, kwaye ukuba akukho manyathelo athatyathwayo, isivuno siya kuncitshiswa kakhulu. Ngoko ke, i-NTI yonyuse inani lemingxuma yokutshiza, ngepleyiti nganye yokutshiza ibe nemiqolo emi-3 okanye ngaphezulu yemingxuma yokutshiza. Ukudibanisa amacandelo amaninzi eyunithi (kuxhomekeke kububanzi) kunye kunokunyusa kakhulu isivuno ngexesha lokujikeleza. Imeko yokwenyani kukuba xa usebenzisa imingxuma ye-micron eyi-63.5, inani lemingxuma kwimitha yomgca omnye we-spinneret ngu-2880. Ukuba imiqolo emithathu isetyenzisiwe, inani lemingxuma ngemitha ye-spinneret linokufikelela kwi-8640, elilingana nokuveliswa kweefayili eziqhelekileyo ezinyibilikayo.

Ngenxa yeendleko eziphezulu kunye nokuchaphazeleka kokuqhekeka (ukuqhekeka phantsi koxinzelelo oluphezulu) yee-spinnerets ezincinci ezinemingxuma ephezulu, iinkampani ezahlukeneyo ziye zaphuhlisa itekhnoloji entsha yokudibanisa ukuqinisa ukuqina kwe-spinnerets kunye nokuthintela ukuvuza phantsi koxinzelelo oluphezulu.

Okwangoku, i-nano meltblown fibers ingasetyenziswa njengemidiya yokucoca, enokuphucula kakhulu ukusebenza kakuhle kokucoca. Kukwakho nedatha ebonisa ukuba ngenxa yeentsinga ezicolekileyo kumalaphu e-nanoscale meltblown nonwoven, amalaphu alula kwaye anzima kakhulu anokunyibilika anokusetyenziswa ngokudityaniswa ne-spunbond composite, esenokumelana noxinzelelo olufanayo lwentloko yamanzi. Iimveliso ze-SMS ezenziwe kuzo zinokunciphisa umlinganiselo we-meltblown fibers.

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 kunye nobubanzi obungaphantsi kwe-3.2 yeemitha ukusuka kwi-9 grams ukuya kwi-300 grams.