Cov hom ntawm PVC kub sab stabilizers yog raws li nram no:
Kub lub nplaum (heat stabilizer) yog ib hom kev ntxiv uas tiv thaiv tau los yog txo qhov degradation los yog crosslinking ntawm lub polymer thaum lub sij hawm ua cov txheej txheem, thiab ntev mus rau lub neej kev pab cuam ntawm composite. Feem ntau siv cov stabilizers tau muab tso rau hauv qab ntsev, cov tshuaj ntxuav fatty acid, cov khoom nruab nrog cev, cov tshav kub hauv lub cev thiab cov khoom tsis muaj organic zoo raws li lawv lub hauv paus.
1) ntsev raws li cov cua sov stabilizers: ntsev raws li cov stabilizers yog cov khoom ua tsis muaj organic thiab organic acid ua ke nrog "ntsev puag". Cov stabilizers muaj kev tiv thaiv zoo heev, huab cua thiab hluav taws xob rwb thaiv tsev, qis tus nqi, tsis tshua meej, thiab ib qho toxicity. Cov tshuaj no feem ntau yog 0.5% ~ 5.0%. (lub hauv paus ntawm lub network polyurethane universal)
2) fatty acid heat stabilizer: Cov cua kub cua sov yog hom kab mob no yog tsim los ntawm fatty acid thiab metal ions. Nws tseem raug hu ua hlau npuas sov sov stabilizer. Nws cov kev ua tau zoo rau cov hom acid thiab hlau ions. Nws txoj kev noj ntau yog 0.1% ~ 3.0%.
3) organic tin heat stabilizers: Cov cua sov stabilizers tau tsim ligands nrog cov tshuaj tsis xyaw chlorine hauv PVC molecules, thiab ligands, pawg carboxylate ntawm cov organic tin hloov nrog cov tsis muaj zog tsis muaj tshuaj atoms. Cov cua kub cua sov no zoo li no yog kev ruaj ntseg siab, kev kaj zoo, zoo heev ua kom sov thiab siab.
4) ntsuas cua sov kom ruaj khov: qhov kub cua txias yog lub hauv paus los yog hlau soap raws li kua los yog cov khoom sib xyaws thiab cov organic uas muaj cov kab taum hauv cov khoom siv, uas muaj hlau cov ntsev ntawm calcium thiab magnesium nrog zinc, barium, calcium, baryum thiab zinc - zinc - barium - cadmium; organic organic fatty acids, naphthenic acid, oleic acid, benzoic acid thiab salicylic acid feem ntau siv.
5) organic compound heat stabilizer: qhov kub cua txias hauv ntxiv rau lub ntsiab ruaj ntseg yuav siv tau ib txhia (feem ntau cov organic compounds txuas nrog nitrogen), xws li polyol nrog qhov kub npau npau thiab phosphate, phosphite thiab nquag siv hlau thiab kev ruaj ruaj stabilizer, txhim kho huab cua tsis kam thiab daim ntawv kaj siab, ua kom qhov xim ntawm cov xim.