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Zokambirana pakugwiritsa ntchito calcium carbonate ngati zodzaza pulasitiki

Calcium carbonate yakhala ikugwiritsidwa ntchito ngati inorganic filler mu kudzaza pulasitiki kwa zaka zambiri.M'mbuyomu, calcium carbonate inkagwiritsidwa ntchito ngati chodzaza ndi cholinga chachikulu chochepetsera ndalama, ndipo idalandira zotsatira zabwino.M'zaka zaposachedwapa, ndi ntchito kwambiri kupanga ndi kuchuluka kwa kafukufuku anapeza, kudzaza kuchuluka kwa kashiamu carbonate sikungathenso kwambiri kuchepetsa ntchito ya mankhwala, ndipo ngakhale kwambiri bwino mbali zina, monga mawotchi katundu, matenthedwe katundu. , ndi zina.
Pogwiritsira ntchito, calcium carbonate nthawi zambiri samawonjezeredwa mwachindunji ku pulasitiki.Kuti calcium carbonate imwazike mofanana mu pulasitiki ndikuthandizira kuti ntchitoyo ikwaniritsidwe, chithandizo cha calcium carbonate chiyenera kuchitidwa choyamba.

Malinga ndi akamaumba ndondomeko ndi ntchito zofunika chomaliza pulasitiki mankhwala, kashiamu carbonate ndi zina tinthu kukula amasankhidwa, choyamba adamulowetsa ndi kuchitiridwa ndi wothandizira monga lumikiza wothandizira, dispersant, lubricant, etc., ndiyeno kuchuluka kwa chonyamulira. utomoni ndi anawonjezera kusakaniza wogawana.Scruder extruder kuti mutulutse ndi granulate kuti mupeze calcium carbonate film masterbatch.Nthawi zambiri, calcium carbonate zili mu masterbatch ndi 80wt%, zomwe zili muzowonjezera zosiyanasiyana zimakhala pafupifupi 5wt%, ndipo utomoni wonyamulira ndi 15wt%.
Kuwonjezera kwa calcium carbonate kungachepetse kwambiri mtengo wa mapulasitiki

Calcium carbonate ndi yochuluka kwambiri ndipo kukonzekera kwake ndikosavuta, kotero mtengo wake ndi wotsika mtengo.Ponena za zipangizo zapadera za mapaipi, mtengo wa polyethylene (wokhala ndi mpweya wakuda) kunyumba ndi kunja ndi wapamwamba, ndipo mtengo wake ndi wosiyana kwambiri ndi calcium carbonate.Kuchuluka kwa calcium carbonate kuwonjezeredwa ku pulasitiki, kutsika mtengo.

Inde, calcium carbonate sangathe kuwonjezeredwa mpaka kalekale.Poganizira kulimba kwa zinthu zapulasitiki, kuchuluka kwa calcium carbonate kumayendetsedwa mkati mwa 50wt% (deta yoperekedwa ndi opanga calcium carbonate filler).Popanga mapaipi apulasitiki ndi chitsulo-pulasitiki, mapulasitiki ndizinthu zazikulu zopangira, ndipo kuchepetsa kwambiri mtengo wapulasitiki mosakayikira kumachepetsa kwambiri mtengo wopangira komanso kukhala kopindulitsa pakuwongolera phindu.


Nthawi yotumiza: Oct-09-2022