I. OVERVIEW NTAWM FOOGED COV KHOOM HAUS ROJ

Ua npuas ncauj cov roj hmab khoom yog tsim los ntawm cov qauv siv tshuaj lossis roj hmab ua ke nrog cov khoom siv hauv paus kom tau daim txhuam cev-xws li cov roj hmab porous qauv khoom. Cov thev naus laus zis no tau siv nyob rau ntau lub qhov rooj ntau lawm, xws li cov ntaub qhwv tsheb thiab lub qhov rai siv gavkets, cov ntaub ntawv seismic, cov chaw tiv thaiv kev ua si, thiab lwm yam.

1, lub tswvyim ntawm cov roj hmab

Cov roj hmab ua npuas ntau tau paub txog cov roj hmab ua npuas ncauj, yog siv cov laj thawj kev ua npuas ncauj los kho cov roj hmab, yog li ntawd cov roj hmab muaj cov yam ntxwv ntawm kev ua haujlwm. Cov thev naus laus zis no yog siv dav nyob rau hauv cov teb ntau lawm, yog cov txheej txheem ntau ntawm kev ua haujlwm ntawm qib no.

2, kev faib tawm ntawm cov khoom siv roj hmab

Ua npuas ncauj cov khoom lag luam yog tam sim no yog ib qho ntawm cov khoom siv tau tshaj plaws hauv cov qauv ntau dua, uas tuaj yeem faib ua ob hom microporous thiab cov qauv sib tw raws li lub qhov hws. Thiab lub microporous tus qauv tuaj yeem muab faib ua cov khoom ua npuas ncauj thiab cov khoom siv ua npuas. Raws li cov khoom siv ntawm cov roj hmab tuaj yeem faib ua cov khoom lag luam roj hmab, yog ethylene cov khoom siv roj hmab, etcene propylene roj hmab ua npuas ncauj khoom, thiab lwm yam.

Thib ob, ua npuas ncauj roj hmab khoom nrog kev tsom xam

Ua npuas ncauj cov khoom lag luam muaj ntau dua thiab ntau dua dav siv nyob rau hauv lub koom haum tam sim no, nws muaj kev sib txawv ntawm lub ntiaj teb sib txawv thiab qhov ceev ntawm cov neeg sawv cev ua npuas ncauj kom phim cov teeb meem. Qhov ntawd yog hais, cov khoom siv roj hmab muaj kev vam meej ntxiv thaum lub ntsej muag roj hmab tshwm sim thaum lub ntsej muag roj hmab kom sib ze los tsim cov txheej txheem tiv thaiv roj av los tsim cov txheej txheem tiv thaiv.

1, kev xaiv ntawm cov khoom tseem ceeb

Nyob rau hauv kev tsim khoom lag luam, feem ntau xav tau cov hom phiaj tshwj xeeb ntawm cov khoom lag luam, cov khoom siv roj hmab muaj zog, tab sis kuj yuav xaiv qee cov roj hmab ua khoom siv kom tau raws li cov khoom lag luam. Rau kev tsim cov roj-resistant npuas cov khoom lag luam, ntxiv rau kev xav tau ntawm cov roj hmab txuj ci tsim nyog, tab sis kuj tseem yuav txheeb xyuas cov khoom siv tshwj xeeb, koj kuj tuaj yeem siv ob lossis ntau hom roj hmab thiab daim foos.

2, kev xaiv ntawm foaming tus neeg sawv cev

Tus neeg sawv cev ua npuas ncauj yog qhov tseem ceeb tshaj plaws hauv tag nrho cov khoom siv roj hmab tag nrho, thiab nws xaiv tau sib haum xeeb rau kev ua haujlwm zoo thiab kev ua haujlwm zoo. Feem ntau hais lus, qhov ua tau zoo ntawm cov khoom ua npuas ncauj yuav tsum xaiv tus neeg saib xyuas kev tshawb fawb thiab tsim nyog ua npuas dej, thiab tus nqi ua npuas ncauj, kev siv cov kev txhim kho tam sim no. Nyob rau tam sim no, lub tshuab tus neeg sawv cev tsuas yog muaj cov organic xim tus neeg sawv cev thiab cov neeg sawv cev hauv sab hauv ob. Inorganic cov neeg sawv cev tsuas yog hais txog sodium bicarbonate, urea, etea, kub nyob rau hauv daim ntawv thov, theoretically nws foaming kev ua npuas zoo kuj zoo dua. Raws li cov roj uas tsim los ntawm cov thev naus laus zis yog siv tau yooj yim rau cov roj hmab kom zoo, thiab feem ntau tuaj yeem siv los ua cov organic foamic tus neeg sawv cev siv.

Cov neeg sawv cev tam sim no, peb feem ntau siv cov npuas ncauj ua npuas dej, xws li urea, siv lwm yam tso tawm, thiab lwm yam, thiab lwm yam. Txo, thermal decomposition ntawm cov roj ua tau muaj nitrogen, carbon dioxide, thiab lwm yam tsis muaj kuab paug ib puag ncig, tsis muaj kuab. Lub pore loj ntawm cov roj hmab ua npuas dej ua nrog cov neeg sawv cev ua npuas dej yog qhov loj dua, thiab qhov kev ntsws yuav loj dua; Thaum siv ua npuas ncauj tus neeg sawv cev, tus neeg sawv cev ua npuas ncauj ua npuas ncauj muaj cov kua qaub ua rau lub ntsej muag kom sov li ntawm kev ua npuas ncauj rau 130 ~ 150 ℃ tom qab ntxiv.

3, kev xaiv ntawm vulcanization system

Kev xaiv cov txheej txheem vulcanization yog qhov tseem ceeb tshaj plaws hauv cov khoom siv ua npuas dej, ua ntej ntawm txhua qhov, seb qhov txuam nrog cov ntsiab lus ntawm cov khoom ua npuas ncauj. Ib lub roj hmab yuav ua tau ib qho tseem ceeb ua ke, qhov tseem ceeb tshaj plaws yog qhov ua kom tus neeg sawv cev ua npuas dej yuav tsum yog cov synchronized, lossis cov tub rog sulfur, lossis lub sijhawm yug me ntsis ua ntej. Yog li ntawd, tom qab xaiv cov txheej txheem vulcanization, kho cov foaming system, kho cov foaming system, lossis tom qab xaiv cov foaming system, kho lub kaw lus vulcanization kom phim nws.

4, Qhov kev xaiv ntawm kev txhawb nqa tub txu

Cov pa roj hmab dub, silica thiab lwm tus neeg sawv cev ntxiv tuaj yeem txhim kho lub zog, cov av nplaum tuaj yeem txhim kho kev ua haujlwm ntawm cov roj hmab thiab txo cov nqi. Carbon Dub yuav tsum xaiv Semi-txhawb nqa nqaij zaub thiab SRF Carbon Dub, File yuav tsum tsis txhob muaj ntau yam ntxiv 20 txog 40 daim ntawv luam.

5, kev xaiv ntawm kev pleev roj hmab

Kev tsim kom muaj cov kev tsim kom muaj cov kev xav tau yog: Zoo siv tau, kev nqus tau zoo, tsis muaj kev tsiv teb chaws, tsis muaj tshuaj thaiv, tsis muaj tshuaj tsw qab, pheej yig thiab tau yooj yim. Lub tshuab yas muaj peev xwm txhim kho cov kev rho tawm ntawm cov neeg sawv cev sib xyaw, cov txheej txheem thiab kev yoog raws li cov roj hmab sib tov. Ua npuas ncauj cov khoom lag luam uas yuav tsum tau ua npuas ncauj ntau, cov dav dav ntawm cov yas yas yas ntxiv, thiab xaiv qhov zoo sib xws nrog cov roj hmab yas.

6, Kev xaiv ntawm antioxidant

Ua npuas ncauj cov khoom lag luam rau cov qauv ntxig, thaj chaw loj dua, muaj qhov yooj yim rau kev laus, yuav tsum ua ke nrog antioxidants. Lub hauv paus ntsiab lus ntawm kev xaiv Antioxidant yog ob qho zoo los tiv thaiv kev laus, tab sis kuj tsis cuam tshuam rau qhov kev txiav txim siab ntawm tus neeg sawv cev ua npuas ncauj. Tuaj yeem xaiv 4010, 264, MB thiab lwm cov tshuaj antioxidants, qhov ntau tshaj li cov khoom lag luam dav hlau.

7, txoj ntsiab cai ntawm cov roj hmab foaming

Khoom roj hmab foaming zus tau los ntawm roj hmab daim txhuam cev, tus neeg sawv cev ua npuas dej hauv cov roj hmab, ib puag ncig los ntawm cov roj hmab los ua npuas rau cov roj hmab nthuav dav los ua daim txhuam cev.

Lub ntsiab tseem ceeb uas txiav txim siab thiab cuam tshuam cov qauv ntawm cov roj hmab thiab qhov nrawm ntawm cov roj hmab, qhov nrawm ntawm cov roj uas yog cov roj hmab.

Txhawm rau ua kom cov khoom roj hmab zoo dua, cov kev xaiv ntawm cov hom neeg sawv cev thiab roj hmab vulcanization system yog tus yuam sij. Muaj ob txoj kev tshwj xeeb:

Ua ntej, raws li vulcanization kub kom xaiv cov kev hloov kho ntawm cov roj hmab, thiab tom qab ntawd yog siv los kho tus nqi ntawm kev txhawb nqa kom hloov cov vulcanization ceev.

Thib ob, nyob rau hauv cov ntaub ntawv ntawm vulcanization system los txiav txim qhov ceev ntawm vulcanization, raws li kev xaiv ntawm ua npuas hom thiab haum particle loj. Lub particle loj ntawm lub tshuab sawv cev kuj tseem yog ib qho tseem ceeb tshaj plaws hauv kev txiav txim siab qhov kev xav ceev ntawm lub tshuab ua haujlwm. Lub particle loj tsawg dua, qhov tshwj xeeb thaj tsam ntawm cov khoom siv ceev ceev

Peb, ua tshuab ua

1, yas

Lub ntsiab lus ntawm yas raw roj hmab yog tawg thiab rhuav tshem macromolecat txoj saw roj hmab. Txhim kho cov plastonity ntawm roj hmab, kom cov kev sib tov thiab cov txheej txheem sib xyaw ua ke ntawm cov neeg sawv cev sib xyaw yog qhov yooj yim los ua. Nyob rau hauv kev npaj ntawm ua npuas ncauj cov khoom lag luam, qhov zoo dua yas ntawm roj hmab, qhov yooj yim dua yog los ua cov khoom siv npuas tsis zoo, qhov ceev me me thiab me me shrinkage tus nqi. Yog li ntawd, cov roj hmab nyoos yuav tsum tau yooj yim.

2, cia

Tom qab cov roj hmab sib xyaw, nws yuav tsum tau muab tso rau lub sijhawm ntev ntev, feem ntau 2 ~ 4h, yog li ntau cov tshuaj ntxiv tau tawg hauv cov roj hmab sib tov. Qhov ntau tus yaum cov roj hmab ntxiv tau dispersed, qhov zoo dua qhov ruaj khov ntawm cov khoom lag luam loj, lub smoothness ntawm nto thiab kev sib txawv ntawm cov npuas.

3, kub

Roj Hmab Ua Npuas Ncauj yog heev rhiab rau qhov kub. Cov roj hmab tib yam khoom muaj cov ua npuas dej sib txawv ntawm cov kub. Vim hais tias cov foaming system thiab vulcanization system yog rhiab rau qhov kub txawv, hloov cov teeb meem ntawm kev sib piv ntawm cov foaming system.

4, sib sau

Cov txheej txheem moulding ntawm foofed cov khoom lag luam yog: extrusion molding, moulding, epdm Cov Khoom Siv Nrov Khoom Siv Hauv Extrusion Moulding, thiab NBL feem ntau siv hauv kev sib xyaw.