PVC imakhudzidwa kwambiri ndi kutentha. Kutentha kukafika pa 90 ℃, kuonda pang'ono kumayamba. Kutentha kukakwera kufika pa 120 ℃, kuwolako kumakula. Pambuyo pa kutentha kwa 150 ℃ kwa mphindi 10, utomoni wa PVC umasintha pang'onopang'ono kuchoka ku mtundu wake woyera kukhala wachikasu, wofiira, wofiirira, ndi wakuda. Kutentha kwa processing kwa PVC kuti kufika kumalo othamanga a viscous kuyenera kukhala kwakukulu kuposa kutentha uku. Choncho, kuti PVC ikhale yothandiza, zowonjezera zosiyanasiyana ndi zowonjezera monga plasticizers, stabilizers, lubricant, etc. ziyenera kuwonjezeredwa panthawi yokonza. Zothandizira pokonza ACR ndi imodzi mwazinthu zofunikira pakukonza. Ndilo la gulu la acrylic processing aids ndipo ndi copolymer ya methacrylate ndi acrylic ester. Zothandizira pokonza ACR zimalimbikitsa kusungunuka kwa makina opangira ma PVC, kusintha mawonekedwe a rheological asungunuke, ndipo magawo osagwirizana ndi PVC amatha kusamukira kunja kwa utomoni wosungunula, potero kuwongolera magwiridwe antchito ake osawonjezera kugwiritsa ntchito mphamvu kwa zida zosinthira. Zitha kuwoneka kuti zothandizira pokonza ACR zimagwira ntchito yofunika kwambiri pamakina opangira PVC.
Ubwino wogwiritsa ntchito zothandizira kukonza za ACR:
1. Iwo ali ngakhale bwino ndi PVC utomoni, n'zosavuta kumwazikana mu PVC utomoni, ndipo n'zosavuta ntchito.
2. Lili ndi pulasitiki yamkati ndipo ingagwiritsidwe ntchito muzovala za nsapato zokha, waya ndi zipangizo za chingwe, ndi zipangizo zofewa zowoneka bwino kuti zichepetse kuchuluka kwa pulasitiki yogwiritsidwa ntchito ndi kuthetsa vuto la kusamuka kwapamwamba kwa plasticizers.
3. Ikhoza kusintha kwambiri kusinthasintha kwa kutentha kochepa komanso mphamvu yamphamvu ya mankhwala.
4. Kupititsa patsogolo kwambiri glossiness pamwamba pa mankhwala, kuposa ACR.
5. Kukhazikika kwabwino kwa kutentha ndi kukana kwa nyengo.
6. Chepetsani kukhuthala kwa kusungunuka, kufupikitsa nthawi ya pulasitiki, ndikuwonjezera zokolola zamagulu. Limbikitsani mphamvu yakukhudzidwa ndi kusinthasintha kwapang'onopang'ono kwa chinthucho.
Kusintha ACR muzinthu zofanana kumatha kuchepetsa kugwiritsa ntchito mafuta odzola kapena kukulitsa kugwiritsa ntchito zodzaza pomwe mukusunga zinthu zakuthupi, kutsegulira njira zatsopano zokongoletsera mtundu wazinthu ndikuchepetsa mtengo.
Nthawi yotumiza: Dec-25-2023
