Melt tshuab polypropylene tso siab rau nws los xyuas kom meej qhov no! Nyob rau hauv xyoo tas los no, nrog rau kev tswj tsis tau ntawm kev mob ntsws ntsws nyob txawv teb chaws, cov ntaub ntawv yaj yaj, yaj cov ntaub thiab Electret regeneration tau tawg ib tom qab. Niaj hnub no, tsis yog tsuas yog cov khoom yaj yaj tau nce mus rau "tus nqi siab", tab sis kev nplua nuj ntawm peroxide, qhov hloov pauv tseem ceeb ntawm cov khoom tawg, kuj yog "nce"! Muab ob npaug rau 25 peroxide kua kuj tau tsim los tsim lub ntsej muag lub ntsej muag cov ntaub ntawv meltblown rau kev npaj kev sib ntaus sib tua. Ntau tus phooj ywg yuav tsis paub tias peroxide yog dab tsi? Dab tsi yog qhov kev sib raug zoo ntawm nws thiab cov khoom siv yaj? Txhob poob siab. Tom ntej no, vim li cas peroxide tawg?
Peroxide yog dab tsi?
Peroxides yog tshuaj nrog peroxides - o - o. Cov qauv molecular ntawm cov tebchaw uas tuaj yeem siv ua hydrogen peroxide yog tus cwj pwm los ntawm hydrogen peroxide ions. Peroxides muab faib ua inorganic peroxides thiab Organic peroxides. Peroxide plays lub luag haujlwm tseem ceeb hauv Textile manufacturing thiab bleaching kev lag luam. Tsis yog txhua yam khoom siv PP yaj yog tsim los ua lub ntsej muag tiv thaiv. Txhawm rau kom tau txais cov khoom siv PP nrog siab Melt flow index, PP feem ntau yog siv los ua cov khoom siv raw ntawm PP hloov los ntawm cov degradant (xws li Di-tert-butyl peroxide). PP yog qhov tsim nyog rau kev tiv thaiv cov khoom siv ntawm lub tshuab ua pa. Nyob rau hauv tag nrho cov txheej txheem ntawm yaj tshuab ziab khaub ncaws ntau lawm, tus yuam sij yog siv cov organic peroxides li modifiers.
Vim li cas peroxide degrade polypropylene?
Polypropylene raw cov ntaub ntawv muaj qhov hnyav molecular hnyav thiab tsuas yog siv los ua cov ntaub ntawv tsis yog cov ntaub ntawv raw, tab sis tsis tuaj yeem siv rau kev tsim cov khoom tsis-woven. Txhawm rau nthuav dav cov kev siv tseem ceeb ntawm polypropylene, nws yog ib qho tsim nyog los tsim cov khoom lag luam hloov pauv. Ntxiv qhov tsim nyog ntawm Organic peroxides rau polypropylene nrog cov tshuaj qis qis tuaj yeem rhuav tshem cov qauv molecular ntawm polypropylene oxygen radical saw, txo cov txheeb ze molecular phaus, ua kom cov Melt flow index, txhim kho fluidity, thiab nce tus nqi ntawm lub hwj chim-txoj cai kua. . Qhov siab dua qhov Melt flow Performance index ntawm PP siv rau yaj tshuab ziab khaub ncaws, qhov zoo dua cov tshuaj fiber ntau, thiab qhov zoo dua qhov filterability ntawm yaj cov ntaub.