Kev Sib Piv ntawm Cov Qhov Sib Txawv ntawm PVC Calcium Zinc Stabilizers thiab Lead Salt Stabilizers

Kev Sib Piv ntawm Cov Qhov Sib Txawv ntawm PVC Calcium Zinc Stabilizers thiab Lead Salt Stabilizers:
1. Kev phooj ywg ib puag ncig thiab kev lom
1. Calcium zinc stabilizer
Tsis muaj cov hlau hnyav xws li cov hlau lead thiab cadmium, ua raws li EU RoHS / REACH cov qauv ib puag ncig;
FDA tau ntawv pov thawj, tsim nyog rau cov teb uas muaj kev nyab xeeb xws li cov khoom ntim khoom noj thiab cov khoom siv kho mob.
2. Cov tshuaj ua kom ntsev ruaj khov
Muaj cov hlau hnyav ua rau muaj kuab paug plua plav thaum lub sijhawm ua haujlwm, thiab kev raug tshuaj lom mus sij hawm ntev tuaj yeem ua rau tib neeg muaj kev noj qab haus huv;
Cov khoom tso tseg tuaj yeem ua rau av thiab dej qias neeg yooj yim.
2, Thermal stability mechanism
1. Calcium zinc stabilizer
Los ntawm txoj kev kho ob txheej: xab npum zinc hloov cov chlorine atoms tsis ruaj khov, xab npum calcium rov ua kom xab npum zinc rov qab los ua kom lub sijhawm ruaj khov ntev dua;
Nws yog ib qho tsim nyog los siv cov synergists xws li β - diketone thiab hydrotalcite los txhim kho kev ruaj khov (nrog rau qhov ntxiv ntawm 0.3% -2%)
2. Cov tshuaj ua kom ntsev ruaj khov
Ncaj qha tsim ib qho complex nrog PVC molecules, zoo thaiv cov tshuaj tiv thaiv HCl tshem tawm;
Ib qho khoom siv tuaj yeem ua tiav kev ruaj khov thermal mus sij hawm ntev yam tsis tas yuav siv cov txheej txheem synergistic nyuaj.

3, Kev ua haujlwm tiav

4, Cov kev txwv ntawm daim ntawv thov
1. Calcium zinc stabilizer
Cov khoom pob tshab yuav tsum ntxiv hypophosphite (0.5%) los txhim kho kev pob tshab;
Cov txheej txheem ntim khoom ntau (calcium carbonate> 30phr) feem ntau muaj teeb meem te.
2. Cov tshuaj ua kom ntsev ruaj khov
◉ Tsuas yog siv rau cov khoom tsis pom kev (xws li cov kav dej thiab cov profile);
Ib puag ncig uas muaj sulfur nyob rau sab qaum teb tuaj yeem ua rau qhov chaw ntawm cov khoom sulfide thiab tig dub.
5, Kev sib txawv ntawm kev lag luam
Qhov ceev ntawm calcium zinc stabilizer yog 40% qis dua, uas tuaj yeem ua rau kom muaj ntau ntxiv ntawm cov khoom sau thiab txo cov nqi;
Tus nqi ntawm cov tshuaj ua kom cov ntsev ua kom ruaj khov qis dua, tab sis cov nqi ntxiv rau kev kho cov hlau hnyav yuav tsum tau them;
Los ntawm kev sib piv ntau qhov sib txawv, nws tuaj yeem pom tias cov calcium zinc stabilizers muaj qhov zoo dua hauv kev hloov pauv ib puag ncig, thaum cov ntsev ua kom cov ntsev tseem khaws cov nqi thov tshwj xeeb hauv kev ua haujlwm kam rau siab thiab kev tswj tus nqi.