Daim ntawv thov ntawm ultrafine cov nquag zinc oxide hauv hose roj hmab

Zinc oxide yog siv cov neeg sawv cev nquag ua rau cov khoom siv roj hmab, thiab txhim kho qhov tseem ceeb ntawm kev ua kom huv ntawm cov roj hmab. Piv nrog dinc ox oxide, ultrafine cov nquag zinc oxide muaj qhov loj me me, qee yam kev ua si tshwj xeeb ntawm cov npoo av, kev faib tawm zoo thiab lwm yam physichochemical cov khoom. Yog li no, hloov dinc oxide nyob rau hauv cov roj hmab tsim nyog tuaj yeem txo nws cov tshuaj uas tsis muaj kev cuam tshuam cov roj hmab thiab cov tshuab siv tshuab ntawm cov roj hmab vulcanized.

Kev sim kuaj

Thaum cov tshuaj ntawm active  zinc oxide tau nce los ntawm 50% mus rau 90%, lub sij hawm vulcanization stomuction (T90) ntawm cov roj hmab ntawm cov khoom siv zinc  oxide.

Lub sijhawm ntawm vulcanization induction lub sij hawm (T10) thiab kev ua kom zoo nkauj thiab lub zog .  ua tau zoo tshaj plaws thaum muaj ntau yam 30% Lub hardness ntawm cov khoom siv roj hmab tsis hloov ntau nrog kev nce ntawm cov nquag zinc oxide noj.

Batch Kev Xaiv

Thaum cov tshuaj ntawm active zinc oxide yog 70% ntawm cov khoom siv zinc oxide, lub cev thiab cov roj av ntawm cov khoom siv roj hmab tau sib piv nrog cov khoom siv zinc oxide. Xaiv cov sib piv, siv cov tshuaj tsis zoo, kom ua tiav ib qho kev ntsuas sib piv, cov txiaj ntsig tau qhia hauv Table 3. Cov txiaj ntsig kev sim ua qhia tau tias cov tshuaj kawg ntawm cov olic oxide

yog 70% ntawm cov khoom siv hnab oxide zoo nkauj

Kev sib xyaw

Ultrafine Intive Zinc oxide yog yooj yim ya thaum sib tov vim yog qhov loj me me thiab qhov hnyav. Sib tov nrog cov refiner tuaj yeem nqa rov qab los ntawm kev sib xyaw, thawj cov nquag zinc oxide rau hauv chav ua kom huv, thiab tom qab ntawd muab cov ntaub ntawv khaws cia rau kev ua haujlwm

Kev yeem

Lub T10 ntawm active  zinc oxide ntev tshaj li ntawm dinc oxide ntev, uas tau txais txiaj ntsig zoo ntawm cov teeb meem vim qhov nce hauv qhov kub thiab txias thaum lub sij hawm extrusion. Kev siv cov roj av tau ua pov thawj tias cov roj hmab tsim kev siv zinc oxide, cov txheej txheem ua haujlwm zoo nkauj yog qhov zoo. Kev yeem

Lub tshuab ntsuas kub: Lub taub dej kub 70 ± 5 ℃ , lub cev kub kub 50 ℃ 5 , ntsia hlau txias 40 ± 5 ℃.

Vulcanization

Kev siv cov active zinc oxide t90 thiab dog dig zinc oxide yog yuav luag sib npaug rau vulcanization kub thiab sijhawm tuaj yeem siv hauv cov txheej txheem qub.

Tus nqi

Tus nqi ntawm active zinc oxide yog siab dua li cov dosage didely, tab sis cov tshuaj muaj peev xwm txo qis, raws li kev sim, lub hose mis tuaj yeem siv 70% ntawm kev siv tshuaj. Tus nqi zoo tshaj yuav qis dua.

Tag

(1) Nyob rau hauv lub hose mis tau siv 70% ntawm cov nquag zinc oxide, lub cev thiab cov roj hmab thiab cov roj hmab tsis hloov lossis txhim kho.

(2) ultrafine nquag  zinc oxide siv nyob rau hauv hose, txheej txheem kev ua haujlwm yog qhov qub. Vim tias lub sijhawm T10 ntev, tiv thaiv cov qhab nia ua yeeb yam yog qhov zoo, ua kom zoo rau extrusion.

(3) Kev siv ntawm ultrafine active zinc oxide tuaj yeem txo tus nqi ntawm roj hmab.