Qhov cuam tshuam ntawm vulcanization rau cov qauv thiab cov khoom ntawm roj hmab

Qhov cuam tshuam ntawm vulcanization rau ntawm cov qauv thiab cov khoom ntawm roj hmab:

Vulcanization yog ib kauj ruam tseem ceeb hauv cov txheej txheem tsim cov khoom siv roj hmab, uas yog cov txheej txheem ntawm kev hloov pauv los ntawm cov qauv linear mus rau lub cev qauv, coj kev hloov pauv dav dav suav nrog cov khoom siv lub cev thiab cov khoom siv kho tshuab, kev tiv taus kub, kev tiv taus cov kuab tshuaj, thiab kev tiv taus corrosion, txhim kho tus nqi thiab ntau yam kev siv ntawm cov khoom.

Cov qauv thiab cov khoom ntawm roj hmab hloov pauv ntau heev ua ntej thiab tom qab vulcanization. Cov roj hmab molecule ua ntej vulcanization muaj cov qauv linear nrog van der Waals forces ua haujlwm ntawm lawv, qhia txog kev zoo plasticity thiab elongation, nrog rau solubility. Thaum lub sijhawm vulcanization, cov molecule raug ua thiab dhau los ntawm cov tshuaj sib txuas, tsim cov qauv network uas cov molecule raug khi los ntawm cov tshuaj sib txuas.

Cov qauv thiab cov khoom ntawm cov roj hmab vulcanized feem ntau suav nrog:

Cov qauv: cov tshuaj sib txuas, qhov chaw ntawm cov kev sib txuas sib txuas, qib ntawm kev sib txuas, thiab kev sib txuas

Kev Ua Tau Zoo: Cov khoom siv kho tshuab (lub zog ntev mus tas li, qhov nyuaj, lub zog tensile, elongation, elasticity), cov khoom siv lub cev, kev ruaj khov tshuaj tom qab vulcanization

Cov txheej txheem vulcanization tuaj yeem hloov pauv cov yam ntxwv ntawm roj hmab. Piv txwv li, siv roj hmab ntuj, thaum qib ntawm vulcanization nce ntxiv:

Kev hloov pauv ntawm cov khoom siv kho tshuab: nce elasticity, tensile zog, tensile zog, tear zog thiab hardness, txo elongation, compression tas mus li deformation, thiab qaug zog cua sov generation

Kev hloov pauv ntawm cov khoom siv lub cev: Qhov permeability ntawm huab cua thiab dej permeability txo qis, tsis tuaj yeem yaj, tsuas yog tuaj yeem o, kev tiv thaiv kub zoo dua, kev ruaj khov tshuaj zoo dua, kev sib txuas ntawm cov tshuaj tiv thaiv tshem tawm cov pab pawg lossis cov atoms uas muaj zog heev, ua rau kev laus ua rau nyuaj rau ua. Cov qauv network cuam tshuam kev sib kis ntawm cov molecule qis, ua rau nws nyuaj rau cov roj hmab dawb radicals kom sib kis.

Cov xwm txheej vulcanization, suav nrog lub siab, kub, thiab lub sijhawm, yog cov yam tseem ceeb uas txiav txim siab qhov tshwm sim ntawm vulcanization. Lub siab vulcanization muaj qhov cuam tshuam tseem ceeb rau kev tiv thaiv kev tsim cov npuas hauv cov khoom siv roj hmab, txhim kho qhov compactness ntawm cov khoom siv roj hmab, thiab sau cov pwm nrog cov khoom siv roj hmab. Nws kuj tseem tuaj yeem txhim kho qhov kev sib txuas ntawm ntau txheej (txheej roj hmab thiab txheej ntaub lossis txheej hlau, txheej ntaub thiab txheej ntaub) hauv cov khoom, thiab txhim kho cov khoom siv lub cev ntawm cov roj hmab vulcanized (xws li kev tiv thaiv khoov).

Qhov kub ntawm vulcanization yog qhov tseem ceeb ntawm cov tshuaj tiv thaiv vulcanization, uas tuaj yeem cuam tshuam ncaj qha rau qhov ceev ntawm vulcanization, qhov zoo ntawm cov khoom, thiab cov txiaj ntsig kev lag luam ntawm lub tuam txhab. Kev tsa qhov kub ntawm vulcanization tuaj yeem ua kom qhov ceev ntawm vulcanization sai dua thiab txhim kho kev tsim khoom, tab sis qhov kub ntawm vulcanization ntau dhau tuaj yeem ua rau muaj teeb meem xws li cov roj hmab molecular saw tawg, kev hloov pauv vulcanization, txo cov khoom siv roj hmab, thiab txo lub zog ntawm cov ntaub. Nws kuj tseem tuaj yeem ua rau lub sijhawm kub ntawm cov khoom siv roj hmab luv dua, ua rau cov roj hmab hauv zos tsis txaus thiab cov khoom tsis sib xws vulcanization. Yog li ntawd, kev xaiv qhov kub ntawm vulcanization yuav tsum xav txog cov yam xws li hom roj hmab, lub kaw lus vulcanization, thiab cov qauv khoom.

Kev txiav txim siab txog cov xwm txheej ntawm kev sib xyaw ua ke - suav nrog lub siab, kub, thiab lub sijhawm - yog ib qho txheej txheem nyuaj uas yuav tsum tau xav txog ntau yam.

Kev nias vulcanization: Kev xaiv ntawm kev nias vulcanization feem ntau nyob ntawm tus qauv tsim thiab cov kev xav tau ntawm cov khoom roj hmab. Feem ntau, kev xaiv ntawm kev nias feem ntau yog txiav txim siab los ntawm cov duab, qhov loj me, thiab qhov nyuaj ntawm cov khoom roj hmab. Qhov siab dua, qhov zoo dua qhov fluidity ntawm cov roj hmab, uas tuaj yeem sau cov pwm zoo dua. Tib lub sijhawm, qhov siab siab tuaj yeem tiv thaiv kev tsim cov npuas thiab txhim kho qhov compactness ntawm cov khoom. Txawm li cas los xij, qhov siab ntau dhau yuav ua rau cov khoom siv roj hmab ntws ntau dhau, ua rau muaj kev cuam tshuam hauv cov duab ntawm cov khoom.

Kub ntawm sulfurization: Qhov kub ntawm vulcanization ncaj qha cuam tshuam rau qhov ceev thiab zoo ntawm cov tshuaj tiv thaiv vulcanization. Qhov kub siab dua, qhov ceev ntawm cov tshuaj tiv thaiv vulcanization, tab sis nws yuav ua rau cov saw hlau roj hmab tawg, cuam tshuam rau cov khoom siv lub cev. Qhov kub ntawm vulcanization tsim nyog tuaj yeem ua kom muaj qhov ceev ntawm vulcanization zoo yam tsis ua rau muaj kev puas tsuaj loj rau cov khoom siv roj hmab.

Lub sijhawm sulfurization: Lub sijhawm vulcanization yog ncaj qha cuam tshuam nrog qhov kub thiab txias vulcanization. Qhov kub siab dua yuav xav tau lub sijhawm vulcanization luv dua, thiab vice versa. Feem ntau, kev xaiv lub sijhawm vulcanization yuav tsum xav txog hom roj hmab khoom, qhov kub thiab txias vulcanization, thiab qhov tuab ntawm cov khoom. Lub sijhawm vulcanization zoo tshaj plaws txiav txim siab los ntawm kev sim tuaj yeem ua kom cov khoom siv roj hmab ua tiav cov khoom siv kho tshuab zoo tshaj plaws thiab kev tiv thaiv kev laus.

Feem ntau, kev txiav txim siab txog cov xwm txheej ntawm kev sib xyaw ua ke yog ib qho txheej txheem uas yuav tsum tau xav txog ntau yam xws li hom roj hmab, cov duab ntawm cov khoom, cov khoom siv sib xyaw ua ke, thiab lwm yam. Hauv kev tsim khoom tiag tiag, feem ntau nws yog qhov tsim nyog los ua ntau qhov kev sim thiab maj mam ua kom zoo dua cov xwm txheej ntawm kev sib xyaw ua ke kom tau txais kev ua tau zoo tshaj plaws ntawm cov khoom.