Di-tert-butyl peroxide, tseem hu ua DTBP, yog cov khoom lag luam feem ntau dialkyl peroxide nrog cov mis molecular C8H18O2. Nws yog cov kua tsis muaj xim uas tuaj yeem sib xyaw nrog cov kuab tshuaj organic xws li benzene thiab roj av ether, thiab yog insoluble hauv dej. Nws yog tsuas yog siv los ua tus pib cob qhia, photopolymerization sensitizer, roj hmab vulcanizer, diesel ignition promoter, thiab kuj nyob rau hauv organic synthesis.
Daim ntawv thov tseem ceeb ntawm di-tert-butyl peroxide (kab lus no yog thawj feem), thiab cov lus qhia luv luv yog raws li hauv qab no:
1, Crosslinked polyethylene kev lag luam
Crosslinked polyethylene (PEX) yog ib hom polyethylene uas hloov cov kab los yog me ntsis branched polyethylene (PE) mus rau hauv ob sab los yog peb-dimensional network qauv los ntawm cov tshuaj lom neeg los yog hluav taws xob hluav taws xob. Nws yog dav siv hauv cov kav dej, cov yeeb yaj kiab, cables thiab cov khoom ua npuas ncauj nrog cov khoom zoo heev.
Piv nrog cov kav hlau lossis lwm cov kav dej yas, cov kav dej sib txuas nrog polyethylene muaj ntau yam ntxwv thiab qhov zoo, xws li qhov kub thiab txias, kev siv mus sij hawm ntev hauv qab -75 degree -110 degree tej yam kev mob, khoom thiab resilient zoo nkauj. , siab sab hauv siab tsis kam, zoo tshuaj corrosion kuj, xeb thiab pwm kuj, lub teeb yuag, thiab muaj peev xwm khoov dawb do tsis muaj embrittlement. Nyob rau hauv xyoo tas los no, txoj kev loj hlob ntawm cross-linked polyethylene tau nrawm heev thiab muaj kev cia siab dav.
Lub ntsiab daim ntawv thov ntau yam nyob rau hauv peroxide crosslinked polyethylene yog 2, 5-dimethyl-2, 5-bis (tert butylperoxy) hexane (tseem hu ua 10}1) thiab di tert butylperoxide (DTBP), txhua tus accounting rau kwv yees li 55% thiab 30% ntawm tag nrho cov kev thov, nrog rau qhov sib ntxiv ntawm qhov sib txawv ntawm 0.5% thiab 2%.
2, Polypropylene fiber ntau kev lag luam
Polypropylene, abbreviated li PP, yog ib tug thermoplastic resin ua los ntawm polymerization ntawm propylene. Nws muaj qhov zoo ntawm kev ceev qis, tsis muaj tshuaj lom, kev lag luam yooj yim, thiab siv hluav taws xob yooj yim, thiab cov khoom siv hluav taws xob, ntim khoom, thiab cov khoom siv hauv tsev thiab rooj tog.
Nyob rau hauv xyoo tas los no, cov khoom tseem ceeb ntawm lub qhov ncauj qhov ntswg uas tau ntes tau hluav taws vim muaj kev sib kis yog polypropylene ultrafine fiber, uas yog cov ntaub meltblown. Fiber zoo li ntawm {{0}}.5 mus rau 1.0 μ m. Qhov sib faib ntawm cov fibers muab ntau lub sijhawm rau thermal bonding ntawm fibers, ua rau thaj tsam loj dua thiab cov porosity siab dua (Ntau dua los yog sib npaug li 75%) rau cov khoom siv hluav taws xob yaj. Tom qab high voltage electret filtration efficiency, cov khoom muaj cov yam ntxwv ntawm tsis tshua muaj kuj, high efficiency, thiab siab plua plav kam.
Cov organic peroxides siv hauv kev lag luam polypropylene fiber ntau yog dialkyl peroxides, nrog rau qhov sib ntxiv ntawm 0 05-0.2%. Ntawm lawv, 2,5-dimethyl-2,5-bis (tert butylperoxy) hexane (101) suav txog 70%, thiab Di-tert-butyl peroxide (DTBP) suav txog 20% .