Pulasitiki yomwe timagwiritsa ntchito nthawi zambiri si chinthu choyera, imapangidwa kuchokera kuzinthu zambiri.Pakati pawo, ma polima apamwamba kwambiri ndi zigawo zazikulu za mapulasitiki.Kuonjezera apo, pofuna kupititsa patsogolo ntchito ya mapulasitiki, zipangizo zosiyanasiyana zothandizira, monga zodzaza, mapulasitiki, mafuta odzola, okhazikika, opaka utoto, ndi zina zotero, ziyenera kuwonjezeredwa ku polima.Pulasitiki yochita bwino.
Chikwama chapulasitiki chopangidwa ndi utomoni: Polima wapamwamba kwambiri, wotchedwanso synthetic resin, ndiye chinthu chofunikira kwambiri papulasitiki, ndipo zomwe zili mupulasitiki nthawi zambiri zimakhala 40% mpaka 100%.Chifukwa cha kuchuluka kwake komanso momwe ma resin omwe nthawi zambiri amapangira mapulasitiki, anthu nthawi zambiri amawona kuti ma resin amafanana ndi mapulasitiki.
Zodzaza matumba apulasitiki: zodzaza zimatchedwanso zodzaza, zomwe zimatha kuwonjezera mphamvu ndi kukana kutentha kwa mapulasitiki ndikuchepetsa mtengo.Mwachitsanzo, kuwonjezera ufa wa nkhuni ku utomoni wa phenolic kungachepetse kwambiri mtengo, kupanga pulasitiki ya phenolic imodzi mwa mapulasitiki otsika mtengo, ndipo nthawi yomweyo, imatha kusintha kwambiri mphamvu zamakina.Zodzaza zimatha kugawidwa m'ma organic fillers ndi ma inorganic fillers, akale monga ufa wamatabwa, nsanza, mapepala ndi ulusi wansalu zosiyanasiyana, ndi zina zotero, zotsirizirazo monga ulusi wagalasi, dziko la diatomaceous, asibesitosi, kaboni wakuda ndi zina zotero.
Mapulasitiki opangira pulasitiki: Mapulasitiki amatha kuonjezera pulasitiki ndi kufewa kwa mapulasitiki, kuchepetsa kuphulika, ndi kupanga mapulasitiki osavuta kukonza ndi kupanga.Plasticizers nthawi zambiri amakhala ndi resin-miscible, sanali poizoni, osanunkhiza, owiritsa kwambiri omwe amakhala okhazikika pakuwala komanso kutentha.Zomwe zimagwiritsidwa ntchito kwambiri ndi phthalates.
Pulasitiki thumba stabilizer: Pofuna kuteteza utomoni wopangidwa kuti asawonongeke ndi kuwonongeka ndi kuwala ndi kutentha panthawi yokonza ndi kugwiritsira ntchito, ndikutalikitsa moyo wautumiki, stabilizer iyenera kuwonjezeredwa ku pulasitiki.Zomwe zimagwiritsidwa ntchito kwambiri ndi stearate, epoxy resin ndi zina zotero.
Zojambula zamatumba apulasitiki: Zojambulajambula zimatha kupatsa mapulasitiki mitundu yowala komanso yokongola.Utoto wa organic ndi inorganic pigments nthawi zambiri amagwiritsidwa ntchito ngati utoto.
Mafuta a thumba la pulasitiki: Ntchito ya mafuta ndi kuteteza pulasitiki kuti isamamatire ku nkhungu yachitsulo panthawi yopangira, ndipo nthawi yomweyo imapangitsa kuti pulasitiki ikhale yosalala komanso yokongola.Mafuta omwe amagwiritsidwa ntchito kwambiri ndi stearic acid ndi mchere wake wa calcium ndi magnesium.
Kuphatikiza pazowonjezera pamwambapa, zoletsa moto, zotulutsa thovu, antistatic agents, ndi zina zotere zitha kuwonjezeredwa ku mapulasitiki kuti akwaniritse zofunikira zosiyanasiyana.
Nthawi yotumiza: Mar-11-2022