Dab tsi yog cov ntaub ntawv tseem ceeb rau yaj tshuab tsis-woven npuag

Polypropylene yog ib qho tseem ceebraw khoomrau non-woven fabrics, uas muaj peev xwm endow non-woven fabrics nrog zoo heev lub cev.

Dab tsi yog non-woven npuag

Non-woven fabric yog ib tiam tshiab ntawm ib puag ncig tus phooj ywg cov khoom uas ua ke fibers los yog granular luv fibers los ntawm chemical, mechanical, los yog chemical composite txoj kev, tsis muaj fibers nyob rau hauv ib tug textile yam.

Yog vim li cas siv polypropylene

Polypropylene yog ib qho ntawm cov khoom siv raw tshaj plaws hauv kev tsim cov ntaub tsis-woven, feem ntau yog vim li cas hauv qab no:

1. Polypropylene muaj kev hnav zoo thiab tawv, uas tuaj yeem txhim kho lub zog thiab ua haujlwm ntev ntawm cov ntaub tsis-woven;

2. Polypropylene yog ib qho yooj yim rau cov txheej txheem thiab cov duab, ua cov txheej txheem ntawm cov ntaub ntawv uas tsis yog-woven yooj yim;

3. Polypropylene melts ntawm qhov kub thiab txias thiab tuaj yeem muab kev sib txuas zoo rau cov ntaub tsis-woven.

Cov yam ntxwv ntawm cov khoom tshwj xeeb polypropylene rau meltblown fabrics

Melt cua tshuab tshwj xeeb polypropylene cov khoom PP yog universal thermoplastic polymer, uas muaj cov yam ntxwv ntawm lub zog siab, zoo rwb thaiv tsev, tsis tshua muaj dej nqus, siab thermal deformation kub, tsawg ntom, siab crystallinity, thiab zoo yaj flowability; Nyob rau tib lub sijhawm, nws muaj cov kuab tshuaj zoo, roj tsis kam, tsis muaj zog acid thiab alkali tsis kam, thiab pheej yig thiab yooj yim kom tau, yog li nws tau siv dav hauv fiber ntau.

Cov txheej txheem yuav tsum muaj rau cov khoom siv tshwj xeeb polypropylene rau cov ntaub meltblown

Vim tias qhov tshwj xeeb ntawm cov tshuab yaj tshuab, PP raw cov ntaub ntawv siv los ua cov ntaub ntawv tshwj xeeb rau cov khoom siv yaj uas tsis yog woven yuav tsum ua raws li cov hauv qab no:

(1) Lub siab melting Performance index yuav tsum ntau tshaj 400g / 10min.

(2) Narrow txheeb ze molecular hnyav faib (MWD).

(3) Cov ntsiab lus tsis tshua muaj tshauv, qis meltblown cov ntaub ntawv raw, siab viscosity ntawm cov yaj, yuav tsum tau lub extruder los muab lub siab ntau dua rau smoothly extrude nws los ntawm lub nozzle lub qhov, yuav tsum tau ntau zog noj thiab raug cov khoom meltblown rau siab dua; Thiab cov yaj tsis tuaj yeem ncav cuag thiab ua kom zoo dua tom qab extruded los ntawm lub qhov spinning, ua rau nws tsis tuaj yeem tsim cov fibers ultrafine.

Yog li ntawd, tsuas yog PP raw cov ntaub ntawv nrog siab yaj Performance index tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov tshuab ziab khaub ncaws, tsim cov khoom siv ultrafine fiber nonwoven fabrics, thiab txo lub zog noj. Qhov txheeb ze molecular hnyav faib muaj feem cuam tshuam rau cov khoom, kev ua haujlwm, thiab kev siv tau ntawm PP yaj. Rau kev tsim cov yaj tshuab tsis-woven npuag, yog hais tias tus txheeb ze molecular hnyav tis yog dav dav thiab muaj cov ntsiab lus siab ntawm cov txheeb ze molecular hnyav PP, qhov kev ntxhov siab tawg ntawm PP yuav hnyav dua.

Lub luag haujlwm ntawm polypropylene hauv cov ntaub tsis-woven

1. Txhim kho lub zog thiab kav ntev ntawm cov ntaub tsis-woven

Vim nws zoo hnav tsis kam thiab toughness, ntxiv polypropylene tuaj yeem txhim kho lub zog thiab ruaj khov ntawm cov ntaub tsis-woven, ua rau lawv ruaj thiab hnav-resistant.

2. Txhim kho qhov pom kev ua haujlwm ntawm cov ntaub tsis-woven

Polypropylene yog cov khoom siv microporous uas tuaj yeem lim cov khoom me me los ntawm kev tswj nws qhov pore loj thaum tsim cov ntaub tsis-woven. Yog li ntawd, polypropylene tuaj yeem ua rau pom kev lim dej zoo hauv cov ntaub tsis-woven.

3. Ua cov ntaub tsis-woven ua cov qauv nruj dua

Polypropylene melts ntawm qhov kub thiab txias thiab muab kev sib txuas zoo rau cov ntaub ntawv tsis-woven, tsim cov qauv nruj dua ntawm cov fibers thiab ua cov ntaub tsis-woven ntau ruaj khov thiab ruaj khov.

Xaus

Hauv cov ntsiab lus, polypropylene, uas yog ib qho ntawm cov khoom siv tseem ceeb rau cov ntaub tsis-woven, tuaj yeem tso cov ntaub tsis-woven nrog cov khoom zoo ntawm lub cev thiab ua lub luag haujlwm tseem ceeb hauv kev tsim cov ntaub ntawv tsis-woven.