Qhov sib txawv tseem ceeb ntawm kev kho cov tshuaj sulfur thiab peroxide yog tias cov tshuaj sulfur kho EPDM qhia tau hais tias tsis tshua muaj tshuaj lom neeg thiab thermal kuj piv rau peroxide kho EPDM.
Lo lus EPDM sawv cev rau Ethylene Propylene Diene Monomers. Nws yog ib hom high-density hluavtaws roj hmab. Feem ntau, cov khoom no tsis yog kub resistant piv rau cov ntaub ntawv xws li silicone, tab sis nws muaj peev xwm tiv taus kub siab txog li 130 degrees Celsius. Yog li ntawd, peb tuaj yeem ua sulfur curing thiab peroxide curing los txhim kho cov cuab yeej ntawm tshuaj lom neeg thiab thermal kuj.
Kev kho Sulfur yog dab tsi?
Sulfur yog cov khoom siv tshuaj lom neeg muaj cov cim tshuaj S thiab atomic tooj 32. Nws yog ib qho polyatomic nonmetal uas muaj cov khoom siv hluav taws xob [Ne]3s23p4 Qhov no yog ntau, ntau yam, thiab cov tshuaj nonmetallic uas tshwm sim hauv ob daim ntawv loj li organic sulfur thiab inorganic sulfur. Peb tuaj yeem siv cov nonmetal no los tsim cov tshuaj sulfur kho EPDM.
Daim duab 01: Cov qauv tshuaj ntawm EPDM
EPDM lossis Ethylene Propylene Diene Monomer yog cov roj hmab nrov thiab ntau yam khoom siv uas muaj muag. Qhov tseem ceeb tshaj plaws ntawm EPDM yog cov cua sov, ozone, thiab huab cua tsis kam. Peb tuaj yeem muab cov khoom no los kho nrog sulfur lossis peroxide. Ntawm no, peb yuav tsum xaiv cov khoom tsim nyog thiab txoj kev kho raws li qhov kawg-siv thiab nws daim ntawv thov.
Feem ntau, sulfur kho EPDM yog ib txwm muaj thiab yooj yim muaj piv rau peroxide kho EPDM. Ntxiv mus, cov khoom siv no feem ntau yog kev lag luam zoo nkauj dua. Txawm li cas los xij, nws tuaj yeem tiv taus kub txog li 250 degrees Fahrenheit, uas yog qhov sib piv tus nqi qis. Tsis tas li ntawd, sulfur kho EPDM yog siab dua hauv tensile lub zog, muaj lub zog tsim kua muag siab, thiab tso cai rau peb siv nws nyob rau hauv ntau yam ntawm fillers.
Peroxide kho yog dab tsi?
Peroxide yog ib hom tshuaj reactive nyob rau hauv uas ob lub pa oxygen atoms txuas ua ke nrog ib daim ntawv cog lus. Muaj ntau ntau cov peroxides uas yog cov tshuaj bleaching. Peb tuaj yeem siv peroxides kom tau txais peroxide kho EPDM.
Feem ntau, EPDM uas kho nrog peroxide muaj cov tshuaj zoo tshaj plaws thiab kev tiv thaiv thermal piv rau sulfur kho EPDM. Lub peroxide kho EPDM tuaj yeem tiv taus qhov kub txog li 300 degrees Fahrenheit. Ntxiv mus, nws tuaj yeem txhim kho cov txheej txheem compression thiab kev laus ntawm cov khoom siv.
Tsis tas li ntawd, peroxide kho EPDM muaj qhov kub thiab txias tsis kam, zoo tiv thaiv kev laus, tsis tshua muaj compression teeb, txhim kho cov tshuaj tiv thaiv thiab roj, thiab nws yuav tsis stain hlau lossis PVC.
Qhov txawv ntawm Sulfur thiab Peroxide kho yog dab tsi?
Peb tuaj yeem ua sulfur curing thiab peroxide curing los txhim kho cov khoom ntawm EPDM los ntawm kev ua kom muaj tshuaj lom neeg thiab thermal. Qhov sib txawv tseem ceeb ntawm kev kho sulfur thiab peroxide yog tias sulfur kho EPDM qhia tau hais tias tsis tshua muaj tshuaj lom neeg thiab thermal kuj piv rau peroxide kho EPDM. Ntxiv mus, sulfur kho EPDM muaj lub zog tensile siab, siab tsim kua muag lub zog, thiab tso cai rau peb siv nws nyob rau hauv ib tug ntau yam ntawm fillers thaum peroxide kho EPDM muaj kub-kub kuj, zoo ua hauj lwm rau cov laus, tsis tshua muaj compression teeb, txhim kho cov tshuaj tiv thaiv thiab roj, thiab nws yuav tsis stain hlau ntawm PVC.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm sulfur thiab peroxide kho hauv daim ntawv tabular.
Summary – Sulfur vs Peroxide kho
Lo lus EPDM sawv cev rau Ethylene Propylene Diene Monomers. Nws muaj qhov tsis zoo thermal tsis kam, yog li peb yuav tsum kho nws kom txhim kho nws cov khoom. Peb siv sulfur curing thiab peroxide curing los txhim kho cov cuab yeej ntawm tshuaj lom neeg thiab thermal kuj. Qhov sib txawv tseem ceeb ntawm kev kho sulfur thiab peroxide yog tias sulfur kho EPDM qhia tau hais tias tsis tshua muaj tshuaj lom neeg thiab thermal kuj piv rau peroxide kho EPDM.
