Kuwala kukakhala pakupanga zinthu zapulasitiki, mbali ina ya kuwala imawonekera kuchokera pamwamba pa chinthucho kuti ipangitse kuwala, ndipo mbali ina ya kuwala imachotsedwa ndikulowetsedwa mkati mwa pulasitiki.Mukakumana ndi tinthu tating'onoting'ono ta pigment, kunyezimira, refraction ndi kufalitsa kumachitika kachiwiri, ndipo mtundu wowonetsedwa ndi pigment.Mtundu wonyezimira ndi particles.
Njira zopangira utoto za pulasitiki zomwe zimagwiritsidwa ntchito nthawi zambiri ndi: utoto wowuma, kupaka utoto wamtundu (mtundu wa phala), utoto wa masterbatch.
1. Kupaka utoto
Njira yogwiritsira ntchito tona mwachindunji (pigments kapena utoto) kuti muwonjezere kuchuluka koyenera kwa zowonjezera ufa ndi zida zapulasitiki zosakaniza ndi utoto zimatchedwa utoto wowuma.
Ubwino wa utoto wowuma ndi dispersibility wabwino komanso mtengo wotsika.Ikhoza kufotokozedwa mosasamala malinga ndi zosowa, ndipo kukonzekera ndikosavuta kwambiri.Imapulumutsa kugwiritsidwa ntchito kwa anthu ogwira ntchito ndi zinthu zakuthupi pokonza zopaka utoto monga ma masterbatches amitundu ndi ma pastes amitundu, ndiye kuti mtengo wake ndi wotsika, ndipo ogula ndi ogulitsa safunika kugwiritsa ntchito.Zoletsedwa ndi kuchuluka kwake: Zoyipa zake ndikuti pigment idzakhala ndi fumbi lowuluka komanso kuipitsa panthawi yoyendetsa, kusungirako, kuyeza ndi kusakaniza, zomwe zidzakhudza malo ogwira ntchito komanso thanzi la ogwira ntchito.
2. Matani utoto wa utoto (mtundu wa phala).
Munjira yopaka utoto, utotowo nthawi zambiri umasakanizidwa ndi chothandizira chamadzimadzi (pulasitiki kapena utomoni) kuti apange phala, kenako amasakanizidwa ndi pulasitiki, monga phala la shuga, utoto, ndi zina.
Ubwino wa utoto pasty colorant (mtundu phala) ndi kuti kubalalitsidwa zotsatira zabwino, ndi kuipitsidwa fumbi si kupangidwa;kuipa kwake ndikuti kuchuluka kwa utoto sikophweka kuwerengera ndipo mtengo wake ndi wokwera.
3. Masterbatch utoto
Pokonzekera mtundu wa masterbatch, pigment yoyenera nthawi zambiri imakonzedwa poyamba, kenako pigment imasakanizidwa ndi chonyamulira cha masterbatch molingana ndi chiŵerengero cha formula.Tinthu tating'onoting'ono timaphatikizana, kenako timapanga tinthu tating'onoting'ono tofanana ndi tinthu tating'onoting'ono, kenako timagwiritsidwa ntchito popanga zida zopangira pulasitiki.Mukagwiritsidwa ntchito, gawo laling'ono (1% mpaka 4%) liyenera kuwonjezeredwa ku utomoni wachikuda kuti mukwaniritse cholinga cha utoto.
Maumboni
[1] Zhong Shuheng.Kupanga Kwamitundu.Beijing: China Art Publishing House, 1994.
[2] Song Zhuoyi et al.Pulasitiki zopangira ndi zowonjezera.Beijing: Science and Technology Literature Publishing House, 2006.
[3] Wu Lifeng et al.Masterbatch User Manual.Beijing: Chemical Industry Press, 2011.
[4] Yu Wenjie et al.Zowonjezera Pulasitiki ndi Ukadaulo Wopanga Zopanga.3rd Edition.Beijing: Chemical Viwanda Press, 2010.
[5] Wu Lifeng.Mapangidwe amtundu wa utoto wa pulasitiki.2 kope.Beijing: Chemical Viwanda Press, 2009
Nthawi yotumiza: Jul-01-2022