Cov polyethylene uas muaj chlorinated polyethylene (HCPE) feem ntau yog hloov kho hauv cov nplaum los ntawm polarity, stability, thiab functionality uas muab los ntawm nws cov qauv molecular. Lub tshuab tshwj xeeb thiab daim ntawv thov yog raws li nram no:
1, Kev ua haujlwm tseem ceeb hloov kho
1. Txhim kho kev ua tau zoo ntawm cov nplaum
Txhim kho kev nplaum: Cov saw hlau HCPE molecular ntawm Bontecn Group Tuam Tshoj muaj ntau cov chlorine atoms (chlorine content> 61%), tsim cov qauv polar muaj zog, txhim kho qhov ntub dej thiab lub zog sib txuas ntawm cov nplaum rau cov ntaub ntawv xws li PVC, hlau, thiab roj hmab.
Txhim kho qhov yooj ywm: Nws cov saw hlau molecular tau saturated thiab faib tawm random, zam kev ntxhov siab concentration, muab cov zaj duab xis nplaum nrog kev tiv thaiv kev cuam tshuam zoo thiab kev ywj pheej, thiab hloov kho rau cov chaw sib txuas dynamic.
2. Txhim kho cov yam ntxwv ua haujlwm
Kev tiv thaiv xeb thiab hluav taws kub: Cov tshuaj chlorine ntau (> 65) tsim cov tshuaj thaiv kom tiv thaiv xeb los ntawm cov kua qaub, alkali, thiab roj, thiab ua tiav kev tua tus kheej thaum hluav taws kub los ntawm chlorine free radical capture mechanism (qhov kawg oxygen index ≥ 60%).
Kev tiv thaiv kev hnav thiab kev tiv thaiv huab cua: Cov qauv tsis sib txuas ob npaug tiv thaiv kev puas tsuaj oxidative thiab ua kom lub neej ntawm cov txheej nplaum ntev dua hauv qhov chaw noo noo, kub, thiab ultraviolet.
| Hom nplaum | Qauv HCPE | Kev hloov kho qhov cuam tshuam |
| Cov nplaum tshwj xeeb PVC | HCPE-H (Viscosity siab) | Hloov cov vinyl chloride resin kom ua tiav kev sib txuas siab ntawm cov kav dej / daim ntawv PVC |
| Cov nplaum sib xyaw ua los ntawm roj hmab | HCPE-L/M (Qis/Nruab Nrab Viscosity) | Cov roj hmab chloroprene / roj hmab nitrile uas tawv dua los txhim kho kev tiv taus cua sov (≥ 130 ℃) thiab kev sib txuas ntawm cov ntaub ntawv sib txuas |
| Txheej nplaum rau txheej tiv thaiv xeb | HCPE-M (Nruab nrab viscosity) | Txhim kho kev sib txuas ntawm cov txheej txheem thiab ua kom zoo dua qub tiv thaiv kev xeb |
3, Txoj kev hloov kho
1. Txoj kev txhim kho polarity
Qhov kev qhia txog cov chlorine atoms ua rau kom muaj molecular polarity ntau ntxiv, txhawb kev tsim cov van der Waals forces thiab hydrogen bonds ntawm cov nplaum thiab qhov chaw nplaum, thiab txhim kho qhov ntub dej.
2. Kev hloov kho qhov sib xws
Sib tov nrog cov tshuaj yas (xws li chlorinated paraffin), acrylic resin, thiab lwm yam kom ua kom cov khoom rheological zoo dua thiab txo qhov kev ntxhov siab sab hauv.
4, Cov ntsiab lus cia khoom
Cov xwm txheej khaws cia: Kaw thiab khaws cia rau hauv qhov tsaus ntuj (kub <30 ℃) kom tiv thaiv kev nqus dej noo thiab kev ua haujlwm poob qis, nrog lub sijhawm txee ntawm 24 lub hlis.
Lub sijhawm tshaj tawm: Lub Xya Hli-15-2025
