Zinthu zambiri zozungulira ife zili ndi mayina wamba ndi mayina okongola.Mwachitsanzo, chomera chobiriwira chomwe chimadziwika kuti "Lala mbande" chimatchedwa "humus".Ndipotu, mapulasitiki alinso ndi mayina okongola.
Mapulasitiki ndi ma monomers ngati zopangira ndipo amapangidwa ndi polyadition kapena polycondensation.Ali ndi kukana kwapang'onopang'ono kupindika ndipo ndi apakati pakati pa ulusi ndi mphira.Amapangidwa ndi ma resin opangidwa ndi ma fillers, plasticizers, stabilizers, lubricant., pigment ndi zina zowonjezera.Chigawo chachikulu cha pulasitiki ndi utomoni.Utoto umatanthauza gulu la polima lomwe silinasakanizidwe ndi zowonjezera zosiyanasiyana.Mawu akuti resin poyambirira adatchulidwa kuti lipids opangidwa ndi nyama ndi zomera, monga rosin ndi shellac.Utoto umatenga pafupifupi 40% mpaka 100% ya kulemera konse kwa mapulasitiki.Zofunikira zamapulasitiki zimatsimikiziridwa makamaka ndi momwe utomoni umachokera, koma zowonjezera zimagwiranso ntchito yofunika.Mapulasitiki ena amapangidwa ndi utomoni wopangira, wopanda kapena zowonjezera pang'ono, monga plexiglass.
Dzina lokongola la pulasitiki ndi: synthetic resin.Synthetic resin ndi mtundu wapawiri wopangidwa mwama polima.Ndi mtundu wa utomoni womwe uli kapena wopitilira mawonekedwe achilengedwe a utomoni wachilengedwe.Ntchito yake yofunika kwambiri ndi kupanga mapulasitiki.Kuti athandizire kukonza ndikuwongolera magwiridwe antchito, zowonjezera nthawi zambiri zimawonjezeredwa, ndipo nthawi zina zimagwiritsidwa ntchito mwachindunji pokonza, motero nthawi zambiri zimafanana ndi mapulasitiki.M'magwiritsidwe ntchito, amagwiritsidwa ntchito mofananamo ndi mapulasitiki.
Chifukwa chake, abwenzi, anthu akamalankhula za utomoni wopangira, kumbukirani kuti akulankhula za pulasitiki ~
Nthawi yotumiza: Nov-12-2022