Cov khoom siv ntxiv yog cov tshuaj lom neeg lossis cov txheej txheem siv hauv kev npaj cov khoom siv los txhim kho cov khoom lossis cov yam ntxwv ntawm cov khoom siv, xws li plasticizers, auxiliaries, thiab fillers. Lawv cov haujlwm tseem ceeb muaj xws li: 1. Txhim kho cov khoom siv (xws li, cov khoom siv hluav taws xob ntau tshaj 300 degree, kev puas tsuaj los ntawm 50% -70%); 2. Optimizing processing technology (txo lub zog noj los ntawm 20% -30%, txhim kho flowability thiab dispersibility); 3. Extending lub neej kev pab cuam (slow down aging tus nqi los ntawm antioxidants, ncua kev pab cuam lub neej los ntawm 2-3 zaug). Cov ntawv thov muaj xws li cov khoom siv yas tawv tawv (nce flexural modulus los ntawm 80%) thiab kev tiv thaiv corrosion ntawm cov coatings (cov tshuaj tsuag ntsev tiv thaiv ntau tshaj 1000 teev).
1. Txhim kho cov khoom vaj khoom tsev
Cov khoom siv ntxiv tuaj yeem txhim kho lub cev, tshuaj, thiab cov khoom siv kho tshuab ntawm cov ntaub ntawv, xws li kub tsis kam, toughness, abrasion tsis kam, thiab corrosion kuj. Cov khoom siv ntxiv tuaj yeem muab cov ntaub ntawv ua tau zoo tshaj plaws, ua kom lawv lub neej ua haujlwm, thiab txo cov nqi siv.
2. Txhim kho cov khoom ua haujlwm zoo
Cov khoom siv ntxiv tuaj yeem ua kom cov dej noo ntawm cov ntaub ntawv tsim nyog, ua rau lawv yooj yim rau kev npaj thiab txheej txheem. Nyob rau hauv siab - qhov kub thiab txias, additives tuaj yeem tiv thaiv cov teeb meem xws li cov khoom siv tsis zoo thiab kev nyuaj hauv extrusion, yog li txhim kho kev ua haujlwm zoo. Tsis tas li ntawd, cov khoom siv ntxiv tuaj yeem txhim kho cov khoom siv dispersibility thiab txo lub zog noj thaum lub sijhawm npaj.
3. Extending Material Lifespan
Additives tuaj yeem ua rau kom muaj zog thiab ruaj khov ntawm cov ntaub ntawv los ntawm kev hloov lawv cov qauv. Lawv kuj tuaj yeem ua rau qeeb ntawm cov txheej txheem kev laus thiab txhim kho cov khoom antioxidant, yog li ncua cov khoom siv lub neej.
