Nheyo yekugadzira yemucheka wakanyunguduka
Meltblown jira chinhu chinonyungudutsa mapolymer patembiricha yakakwira uye yobva yaapfapfaidza mumafiber pasi pekumanikidzwa kwakanyanya. Aya mafibhi anokurumidza kutonhora uye anoomesa mumhepo, achigadzira yakakwirira-density, yakakwirira-inoshanda fiber network. Ichi chinyorwa hachingove nekuita kwakanaka kwekusefa chete, asi zvakare chakareruka uye chinofema, zvichiita kuti chinyatsokodzera kushandiswa mumidziyo yekudzivirira yakaita semasiki.
Iyo huru mbishi zvinhu zve meltblown machira
Iyo huru yezvigadzirwa zvemucheka wakanyunguduka ndeye polypropylene, inowanzozivikanwa sePP zvinhu. Parizvino, akajairika mameltblown machira masiki pamusika anoshandisa polypropylene meltblown jira sechinhu chekusefa. Chikonzero chekusarudza polypropylene seyakanyanya mbishi zvinhu ndechekuti ine yakanaka yekugadzirisa kuita uye mutengo wakanakira, uye ine hushamwari hwakatipoteredza.
Mukuwedzera kune polypropylene, micheka yakanyunguduka inogonawo kugadzirwa nezvimwe zvinhu zvakadai sepolyester, nylon, linen, etc. Zvisinei, zvichienzaniswa nepolypropylene, zvinhu izvi zvine mari yakakwirira kana kuti kushanda kusina kunaka kwekugadzirisa, zvichiita kuti zvive zvishoma zvakakodzera kugadzirwa kukuru.
Polypropylene inoshandiswa zvakanyanya mu melt blown tekinoroji nekuti ine zvinotevera zvakanakira
1. Iyo viscosity yepolymer inogona kudzorwa nekushandisa oxidants kana peroxides mu extrusion process, kana nemichina kuveura iyo extruder kana kudzora tembiricha yekushanda kuti iwane kuora kwekupisa, kuitira kugadzirisa viscosity yekunyungudika.
2. The molecular uremu kugoverwa kunogona kudzorwa neyakanyunguduka akafuridza asiri akarukwa jira muitiro, izvo zvinoda zvishoma nhete molecular uremu kuparadzirwa kuitira kubudisa yunifomu ultrafine faibha. Nekushandisa tekinoroji nyowani dzakaita semetallocene catalysts, mapolymer ane yakanyanya kunyungudika index uye nhete yehuremu hwemamorekuru anogona kugadzirwa.
3. Nzvimbo yepamusoro yakanyunguduka inokwana kupikisa kupisa kwepolypropylene nokuda kwekushandiswa kwechigadzirwa, uye ine huwandu hwakawanda hwepropylene yakanyungudutswa. Saizi, saka, inobatsira zvakanyanya kune inowanzoshandiswa yekupisa bonding kugadzirisa mune isiri-yakarukwa machira tekinoroji.
4. Zvinobatsira kugadzira ultrafine fibers. Kana iyo viscosity ye polypropylene yakanyunguduka yakadzikira uye kugovaniswa kwema molecular huremu hudiki, inogona kugadzirwa kuita faibha yakanaka kwazvo pasi pesimba rakafanana rekushandisa uye kutambanudza mamiriro mukunyunguduka kunoputika maitiro. Naizvozvo, iyo yakajairika faibha dhayamita yepolypropylene yakanyunguduka yakafemerwa isiri-yakarukwa jira ndeye 2-5um, kana kunyange yakatsetseka.
5. Nekuda kwekushandiswa kwepamusoro-kudzvanywa kwemhepo inopisa kudhirowa mukunyunguduka kwekupfapfaidza, inodiwa kushandisa mapolymers ane yakakwira melt index, iyo inobatsira pakuwedzera kugadzirwa uye kuderedza kushandiswa kwesimba. Parizvino, iyo inonyanya kushandiswa polypropylene chips ine melt index ye400-1200g/10min uye yakamanikana mamorekuru uremu kugovera kugadzira ultrafine fiber ine inodiwa mutsara density.
6. Machipisi epolypropylene anoshandiswa mukunyunguduka akaputika kugadzirwa uye kugadzirisa anofanirwa kuve nepamusoro uye yunifomu yakanyunguduka index, yakamanikana mamorekuru uremu kugovera, yakanaka kunyunguduka inopeperetswa maitiro ekugadzirisa, uye yunifomu uye yakagadzikana chip quality kuti ive nechokwadi chekudzikama kwemaitiro ekunyunguduka akafuridzira nonwoven zvinhu.
Kuchengetedza kwekugadzirwa kwemucheka wakanyunguduka
Mukugadzira jira rakanyungudika, zvinotevera zvinofanirwa kucherechedzwa:
1. Kusarudzwa kwezvinhu kunofanirwa kuve kwakachena zvakakwana: Sezvo jira rakanyunguduka richida kutakura mhedzisiro yekusefa, zvinodikanwa kusarudza zvinhu zvakachena zvakakwana pakusarudza zvigadzirwa. Kana paine tsvina yakawandisa, inokanganisa kusefa kwejira rakanyungudika.
2. Kudzora kupisa tembiricha uye kumanikidza: Iyo tembiricha yekugadzirisa uye kudzvanywa kunofanirwa kuiswa zvinoenderana nerudzi rwezvinhu zvakasvibiswa kuti ive nechokwadi chekushanda kwefiber kuumba.
3. Kuve nechokwadi chehutsanana munzvimbo yekugadzira: Sezvo jira rakanyungudika rinoshandiswa kugadzira michina yekudzivirira yakadai semasiki, hutsanana munzvimbo yekugadzira yakakosha. Izvo zvinodikanwa kuve nechokwadi chehutsanana hwemusangano wekugadzira kudzivirira kusvibisa zvigadzirwa.
Dongguan Liansheng Non woven Technology Co., Ltd.yakavambwa muna Chivabvu 2020. Ibhizimusi rekugadzira jira rakakura risingarukwe rinobatanidza tsvakiridzo nekusimudzira, kugadzira, uye kutengesa. Inogona kuburitsa mavara akasiyana-siyana ePP spunbond machira asiri akarukwa ane hupamhi husingasviki 3.2 metres kubva pa9 gramu kusvika 300 magiramu.
Nguva yekutumira: Nov-08-2024